Data transmission circuit, method and device, electronic equipment, accessory and medium

Abstract

The invention relates to a data transmission circuit, method and device, electronic equipment, an accessory and a medium. The data transmission circuit comprises a first wireless transmission circuit used for performing wireless data transmission with the electronic equipment accessory; the identification circuit is coupled with the first wireless transmission circuit; the trigger circuit is coupled with the identification circuit and is used for triggering the identification circuit to switch the working mode from the first working mode to the second working mode under the condition that the first wireless transmission circuit is wirelessly connected with the electronic equipment accessory; and the control circuit is coupled with the first wireless transmission circuit and the identification circuit and is used for performing wireless USB data transmission with the electronic equipment accessory through the first wireless transmission circuit under the condition that the working mode of the identification circuit is the second working mode. Due to the fact that wireless USB data transmission can be carried out through the first wireless transmission circuit and the electronic equipment accessory under the conditions that the electronic equipment is shut down or an operating system breaks down and the like, the reliability of the electronic equipment is improved.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a data transmission circuit, method, apparatus, electronic device, accessory, and medium. Background Technology

[0002] To avoid damage to electronic devices due to wear or corrosion of interfaces, portless electronic devices have emerged and gained popularity among users. Because portless electronic devices lack interfaces, they can only transmit data wirelessly. However, when the electronic device is powered off or the operating system malfunctions, it cannot transmit data wirelessly, resulting in low reliability. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a data transmission circuit, method, apparatus, electronic device, accessory, and medium.

[0004] According to a first aspect of this disclosure, a data transmission circuit is provided, the data transmission circuit comprising:

[0005] A first wireless transmission circuit, the first wireless transmission circuit being used for wireless data transmission with electronic device accessories;

[0006] An identification circuit, which is coupled to the first wireless transmission circuit;

[0007] A trigger circuit is coupled to the identification circuit. The trigger circuit is used to trigger the identification circuit to switch the working mode from the first working mode to the second working mode when the first wireless transmission circuit is wirelessly connected to the accessory of the electronic device.

[0008] The control circuit is coupled to both the first wireless transmission circuit and the identification circuit. The control circuit is used to perform wireless USB data transmission with the electronic device accessory through the first wireless transmission circuit when the identification circuit is in the second working mode.

[0009] In some embodiments of this disclosure, the trigger circuit includes:

[0010] A boost circuit, wherein a first terminal of the boost circuit is coupled to the battery of the electronic device, a second terminal of the boost circuit is coupled to the first terminal of the identification circuit, and a control terminal of the boost circuit is coupled to the first terminal of the first wireless transmission circuit or the first terminal of the control circuit; and / or,

[0011] A first wireless charging circuit, wherein a first terminal of the first wireless charging circuit is coupled to a first terminal of the identification circuit, and the first wireless charging circuit is used to receive electrical energy transmitted by the accessory of the electronic device.

[0012] In some embodiments of this disclosure, the trigger circuit includes the boost circuit and the first wireless charging circuit; the trigger circuit further includes:

[0013] A first switching unit is coupled between the second terminal of the boost circuit and the first terminal of the identification circuit;

[0014] The second switching unit is coupled between the first terminal of the first wireless charging circuit and the first terminal of the identification circuit.

[0015] The driving circuit has a first terminal coupled to a second terminal of the control circuit, a second terminal coupled to a control terminal of the first switching unit, and a third terminal coupled to a control terminal of the second switching unit.

[0016] In some embodiments of this disclosure, the third terminal of the control circuit is coupled to the second terminal of the first wireless charging circuit, and the control circuit is further configured to control the conduction and disconnection of the first switching unit and the second switching unit according to the data sent by the first wireless transmission circuit and / or the first wireless charging circuit.

[0017] In some embodiments of this disclosure, the driving circuit includes a charge pump circuit; and / or, the identification circuit includes a power management circuit; and / or, the control circuit includes a processor.

[0018] In some embodiments of this disclosure, when the electronic device accessory is within a preset range of the first wireless transmission circuit, the first wireless transmission circuit is matched with a second wireless transmission circuit of the electronic device accessory to wirelessly connect to the electronic device accessory; and / or,

[0019] When the electronic device accessory is within a preset range of the first wireless charging circuit, the first wireless charging circuit receives electrical energy transmitted by the second wireless charging circuit of the electronic device accessory to wirelessly connect with the electronic device accessory.

[0020] In some embodiments of this disclosure, the triggering circuit is used to output a target voltage to the identification circuit when the first wireless transmission circuit is wirelessly connected to the electronic device accessory;

[0021] The identification circuit is used to switch the operating mode from the first operating mode to the second operating mode when the target voltage is received.

[0022] In some embodiments of this disclosure, the second terminal of the first wireless transmission circuit is coupled to both the second terminal of the identification circuit and the fourth terminal of the control circuit; the third terminal of the identification circuit is coupled to the fifth terminal of the control circuit; and / or, the first wireless transmission circuit performs wireless data transmission with the electronic device accessory in a millimeter-wave communication manner.

[0023] According to a second aspect of this disclosure, a data transmission method is provided, the data transmission method comprising:

[0024] When wirelessly connected to an electronic device accessory but not wired connected to the electronic device accessory, the operating mode of the identification circuit of the data transmission circuit is switched from the first operating mode to the second operating mode.

[0025] When the identification circuit operates in the second operating mode, it performs wireless USB data transmission with the electronic device accessory.

[0026] In some embodiments of this disclosure, the wireless connection with the electronic device accessory includes:

[0027] When the first wireless transmission circuit of the data transmission circuit receives data sent by the electronic device accessory and / or the first wireless charging circuit of the data transmission circuit receives electrical energy transmitted by the electronic device accessory, a wireless connection is established with the electronic device accessory.

[0028] In some embodiments of this disclosure, before switching the operating mode of the identification circuit of the data transmission circuit from the first operating mode to the second operating mode, the data transmission method further includes:

[0029] The trigger circuit of the data transmission circuit outputs the target voltage to the identification circuit of the data transmission circuit.

[0030] In some embodiments of this disclosure, the trigger circuit controlling the data transmission circuit outputs a target voltage to the identification circuit of the data transmission circuit, including:

[0031] If the first wireless transmission circuit receives data sent by the electronic device accessory and the first wireless charging circuit receives power transmitted by the electronic device accessory, or if the first wireless transmission circuit does not receive data sent by the electronic device accessory but the first wireless charging circuit receives power transmitted by the electronic device accessory, then the second switching unit of the trigger circuit is controlled to be turned on, so that the first wireless charging circuit outputs the target voltage to the identification circuit.

[0032] The first switching unit of the trigger circuit is turned off, so that the boost circuit of the trigger circuit stops outputting the target voltage to the identification circuit;

[0033] If the first wireless transmission circuit receives data sent by the electronic device accessory and the first wireless charging circuit does not receive power transmitted by the electronic device accessory, then the second switching unit is controlled to open, so that the first wireless charging circuit stops outputting the target voltage to the identification circuit;

[0034] The first switching unit is turned on so that the boost circuit outputs the target voltage to the identification circuit.

[0035] According to a third aspect of this disclosure, a data transmission apparatus is provided, the data transmission apparatus comprising:

[0036] A switching module is configured to switch the operating mode of the identification circuit of the data transmission circuit from a first operating mode to a second operating mode when wirelessly connected to an electronic device accessory and not wired connected to the electronic device accessory.

[0037] A transmission module configured to perform wireless USB data transmission with the electronic device accessory when the identification circuit is operating in the second operating mode.

[0038] According to a fourth aspect of this disclosure, an electronic device is provided, the electronic device including the data transmission circuit described above; or,

[0039] processor;

[0040] Memory used to store the processor's executable instructions;

[0041] The processor is configured to execute the data transfer method described above.

[0042] In some embodiments of this disclosure, the electronic device further includes:

[0043] A first housing, wherein the data transmission circuit is disposed within the first housing;

[0044] A first adsorption section is disposed inside the first housing and is used to adsorb the electronic device accessory.

[0045] In some embodiments of this disclosure, the first adsorption portion includes a first magnetic adsorption unit and a second magnetic adsorption unit; the first wireless transmission circuit is disposed between the first magnetic adsorption unit and the second magnetic adsorption unit.

[0046] In some embodiments of this disclosure, the first adsorption unit includes a plurality of third and fourth magnetic units arranged alternately and surrounding the first charging coil of the first wireless charging circuit of the data transmission circuit, and a fifth magnetic unit for locking, wherein the fifth magnetic unit is disposed radially outside one of the third or fourth magnetic units.

[0047] In some embodiments of this disclosure, the first wireless transmission circuit is disposed at the lower part of the first housing.

[0048] In some embodiments of this disclosure, a plurality of alternately arranged third magnetic units and fourth magnetic units are also arranged around the first wireless transmission circuit.

[0049] According to a fifth aspect of this disclosure, a non-transitory computer-readable storage medium is provided, which, when instructions in the storage medium are executed by a processor of a terminal, enables the terminal to perform the data transmission method as described above.

[0050] According to a sixth aspect of this disclosure, an electronic device is provided, the electronic device comprising:

[0051] A first wireless transmission circuit, the first wireless transmission circuit being used for wireless data transmission with electronic device accessories;

[0052] A first housing, wherein the first wireless transmission circuit is disposed within the first housing;

[0053] A first adsorption section is disposed inside the first housing and is used to adsorb the electronic device accessory.

[0054] In some embodiments of this disclosure, the first adsorption portion includes a first magnetic adsorption unit and a second magnetic adsorption unit; the first wireless transmission circuit is disposed between the first magnetic adsorption unit and the second magnetic adsorption unit.

[0055] In some embodiments of this disclosure, the electronic device further includes a first wireless charging circuit; the first adsorption portion includes a plurality of alternately arranged third magnetic units and fourth magnetic units arranged around the first charging coil of the first wireless charging circuit, and a fifth magnetic unit for locking, the fifth magnetic unit being disposed radially outside one of the third magnetic units or the fourth magnetic units.

[0056] In some embodiments of this disclosure, the first wireless transmission circuit is disposed at the lower part of the first housing.

[0057] In some embodiments of this disclosure, a plurality of alternately arranged third magnetic units and fourth magnetic units are also arranged around the first wireless transmission circuit.

[0058] According to a seventh aspect of this disclosure, an electronic device accessory is provided, the electronic device accessory comprising:

[0059] A second wireless transmission circuit is used for wireless USB data transmission with electronic devices;

[0060] An interface, wherein the first end of the interface is coupled to the second wireless transmission circuit, and the second end of the interface is used to couple to an external device.

[0061] In some embodiments of this disclosure, the electronic device accessory further includes:

[0062] A second wireless charging circuit is coupled to the third terminal of the interface and is used to transmit electrical energy to the electronic device.

[0063] In some embodiments of this disclosure, the electronic device accessory further includes:

[0064] The second housing, inside which the second wireless transmission circuit is disposed;

[0065] The second adsorption section is disposed inside the second housing and is used to adsorb the electronic device.

[0066] In some embodiments of this disclosure, the second adsorption unit includes a sixth magnetic adsorption unit and a seventh magnetic adsorption unit; the second wireless transmission circuit is disposed between the sixth magnetic adsorption unit and the seventh magnetic adsorption unit.

[0067] In some embodiments of this disclosure, the second adsorption unit includes a plurality of alternately arranged eighth and ninth magnetic adsorption units disposed around the second charging coil of the second wireless charging circuit of the electronic device accessory, and a tenth magnetic adsorption unit for locking, the tenth magnetic adsorption unit being disposed radially outside one of the eighth or ninth magnetic adsorption units.

[0068] In some embodiments of this disclosure, the second wireless transmission circuit is disposed at the lower part of the second housing.

[0069] In some embodiments of this disclosure, a plurality of alternately arranged eighth and ninth magnetic units are also arranged around the second wireless transmission circuit.

[0070] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0071] The data transmission circuit includes a first wireless transmission circuit, an identification circuit, a triggering circuit, and a control circuit. The control circuit is coupled to both the identification circuit and the first wireless transmission circuit, and the triggering circuit is coupled to the identification circuit. When the first wireless transmission circuit is wirelessly connected to an electronic device accessory, the triggering circuit triggers the identification circuit to switch the identification circuit's operating mode from a first operating mode to a second operating mode. With the identification circuit operating in the second mode, the control circuit performs wireless USB data transmission with the electronic device accessory via the first wireless transmission circuit. By triggering the identification circuit to switch operating modes after wireless connection with the electronic device accessory, wireless USB data transmission can be performed with the electronic device accessory via the first wireless transmission circuit even when the electronic device is powered off or the operating system malfunctions, thereby improving the reliability of the electronic device.

[0072] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0073] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0074] Figure 1 This is a schematic diagram of the structure of a data transmission circuit provided in an exemplary embodiment of the present disclosure;

[0075] Figure 2 This is a schematic diagram of the structure of a data transmission circuit provided in another exemplary embodiment of this disclosure;

[0076] Figure 3 This is a schematic diagram of the structure of a data transmission circuit provided in another exemplary embodiment of this disclosure;

[0077] Figure 4 This is a schematic diagram of the structure of a data transmission circuit provided in another exemplary embodiment of this disclosure;

[0078] Figure 5 This is a schematic diagram of the structure of a data transmission circuit provided in another exemplary embodiment of this disclosure;

[0079] Figure 6 This is a flowchart illustrating a data transmission method provided in another exemplary embodiment of this disclosure;

[0080] Figure 7 This is a block diagram illustrating a data transmission apparatus according to an exemplary embodiment;

[0081] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an exemplary embodiment of the present disclosure;

[0082] Figure 9 This is a schematic diagram of the structure of an electronic device provided in another exemplary embodiment of this disclosure;

[0083] Figure 10 This is a schematic diagram of the structure of an electronic device provided in another exemplary embodiment of this disclosure;

[0084] Figure 11 This is a schematic diagram of the structure of an electronic device accessory provided in an exemplary embodiment of this disclosure;

[0085] Figure 12 This is a schematic diagram of the structure of an electronic device accessory provided in another exemplary embodiment of this disclosure;

[0086] Figure 13 This is a schematic diagram of the structure of an electronic device accessory provided in another exemplary embodiment of this disclosure;

[0087] Figure 14 This is a schematic diagram of the structure of an electronic device accessory provided in another exemplary embodiment of this disclosure;

[0088] Figure 15 This is a block diagram of an electronic device according to an exemplary embodiment.

[0089] In the picture:

[0090] 10-First wireless transmission circuit; 20-Identification circuit; 21-Power management circuit; 30-Trigger circuit; 31-Boost circuit; 32-First wireless charging circuit; 33-First switching unit; 34-Second switching unit; 35-Drive circuit; 40-Control circuit; 50-Electronic device accessory; 51-Second wireless transmission circuit; 52-Interface; 53-Second wireless charging circuit; 54-Second housing; 55-Sixth magnetic unit; 56-Seventh magnetic unit; 57-Eighth magnetic unit; 58-Ninth magnetic unit; 59-Tenth magnetic unit; 60-Battery; 70-First housing; 81-First magnetic unit; 8 2-Second magnetic attraction unit; 83-Third magnetic attraction unit; 84-Fourth magnetic attraction unit; 85-Fifth magnetic attraction unit; 100-Switching module; 200-Transmission module; 321-First charging coil; 351-Charge pump circuit; 400-Electronic device; 402-Processing component; 404-Memory; 406-Power supply component; 408-Multimedia component; 410-Audio component; 412-Input / output interface; 414-Sensor component; 416-Communication component; 420-Processor; 531-Second charging coil; T1-First transistor; T2-Second transistor; T3-Third transistor; T4-Fourth transistor. Detailed Implementation

[0091] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0092] With the development of electronic devices, they can wirelessly transmit data with external devices and be wirelessly charged. External devices include mobile phones, laptops, tablets, and wearable devices. To avoid damage to electronic devices due to wear or corrosion of interfaces, portless electronic devices have emerged and gained popularity. Because portless electronic devices lack interfaces, they can only pair with external devices when powered on, transmitting data wirelessly. For example, electronic devices and external devices can transmit data via Wireless Fidelity (WiFi) or Bluetooth. However, when the electronic device is powered off or its operating system malfunctions, it cannot wirelessly transmit data to external devices for functions such as flashing firmware or system updates, resulting in low reliability.

[0093] Based on this, this disclosure provides a data transmission circuit. When the first wireless transmission circuit is wirelessly connected to an electronic device accessory, a trigger circuit triggers an identification circuit to switch the identification circuit's operating mode from the first operating mode to a second operating mode. When the identification circuit is in the second operating mode, the control circuit performs wireless USB (Universal Serial Bus) data transmission with the electronic device accessory through the first wireless transmission circuit. Because the identification circuit switches operating modes after wireless connection with the electronic device accessory, wireless USB data transmission can still be performed even when the electronic device is powered off or the operating system malfunctions, enabling functions such as flashing and system updates, thereby improving the reliability of the electronic device.

[0094] An exemplary embodiment of this disclosure provides a data transmission circuit, such as Figure 1As shown, the data transmission circuit includes a first wireless transmission circuit 10, an identification circuit 20, a triggering circuit 30, and a control circuit 40. The first wireless transmission circuit 10 is used for wireless data transmission with the electronic device accessory 50. The identification circuit 20 is coupled to the first wireless transmission circuit 10. The triggering circuit 30 is coupled to the identification circuit 20 and, when the first wireless transmission circuit 10 is wirelessly connected to the electronic device accessory 50, triggers the identification circuit 20 to switch its operating mode from a first operating mode to a second operating mode. The control circuit 40 is coupled to both the first wireless transmission circuit 10 and the identification circuit 20, and, when the identification circuit 20 is in the second operating mode, performs wireless USB data transmission with the electronic device accessory 50 via the first wireless transmission circuit 10.

[0095] In this embodiment, the data transmission circuit includes a first wireless transmission circuit, an identification circuit, a triggering circuit, and a control circuit. The control circuit is coupled to both the identification circuit and the first wireless transmission circuit, and the triggering circuit is coupled to the identification circuit. When the first wireless transmission circuit is wirelessly connected to an electronic device accessory, the triggering circuit triggers the identification circuit to switch the operating mode of the identification circuit from a first operating mode to a second operating mode. When the identification circuit is in the second operating mode, the control circuit performs wireless USB data transmission with the electronic device accessory through the first wireless transmission circuit. By triggering the identification circuit to switch operating modes after wireless connection with the electronic device accessory, wireless USB data transmission can be performed with the electronic device accessory through the first wireless transmission circuit even when the electronic device is powered off or the operating system malfunctions, thereby improving the reliability of the electronic device.

[0096] For example, after the control circuit 40 performs wireless USB data transmission with the electronic device accessory 50, the electronic device accessory 50 can perform wired data transmission with a coupled external device, thereby enabling the control circuit 40 to perform wireless USB data transmission with the external device. The USB data wirelessly transmitted between the control circuit 40 and the electronic device accessory 50 may include audio / video data, application data, system data, etc.

[0097] For example, when the identification circuit 20 operates in the first operating mode, it cannot identify external devices coupled to the electronic device accessory 50, and the control circuit 40 does not perform wireless USB data transmission with the electronic device accessory 50. When the identification circuit 20 operates in the second operating mode, it can identify external devices coupled to the electronic device accessory 50. This can include identifying whether the electronic device accessory 50 is coupled to an external device, or identifying device information such as device type and device parameters when an external device is identified. The identification circuit 20 can identify external devices through their ports.

[0098] In one embodiment, such as Figure 2 As shown, the trigger circuit 30 includes a boost circuit 31. The first terminal of the boost circuit 31 is coupled to the battery 60 of the electronic device, the second terminal is coupled to the first terminal of the identification circuit 20, and the control terminal is coupled to the first terminal of the first wireless transmission circuit 10 or the first terminal of the control circuit 40.

[0099] In this embodiment, after wirelessly connecting to an electronic device accessory, if the accessory only includes a second wireless transmission circuit, the operating mode needs to be switched from the first operating mode to the second operating mode by triggering the identification circuit through a boost circuit. The first wireless transmission circuit can directly control the boost circuit to raise the battery voltage to the target voltage, and then output the target voltage to the identification circuit to trigger it. Alternatively, the first wireless transmission circuit can inform the control circuit that the identification circuit needs to be triggered, and the control circuit controls the boost circuit to raise the battery voltage to the target voltage, then outputs the target voltage to the identification circuit to trigger it. By using the boost circuit as the trigger circuit, the identification circuit can be triggered with the raised target voltage to avoid false triggering, thereby improving the reliability of the data transmission circuit. Simultaneously, since the external device, after being connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, outputs the target voltage to the identification circuit through the power supply terminal of the USB interface to trigger the identification circuit, the target voltage output by the boost circuit can simulate the voltage of the power supply terminal to trigger the identification circuit, reducing the degree of modification to the data transmission circuit and method, thereby reducing the complexity of the data transmission circuit design.

[0100] In one embodiment, such as Figure 3 As shown, the trigger circuit 30 includes a first wireless charging circuit 32. The first terminal of the first wireless charging circuit 32 is coupled to the first terminal of the identification circuit 20 and is used to receive electrical energy transmitted by the electronic device accessory 50.

[0101] In this embodiment, after wirelessly connecting to an electronic device accessory, if the accessory includes a second wireless transmission circuit and a second wireless charging circuit, the first wireless charging circuit triggers the identification circuit to switch the operating mode from the first operating mode to the second operating mode. The first wireless charging circuit converts the electrical energy transmitted by the electronic device accessory and can directly output the target voltage to the identification circuit to trigger it. By using the first wireless charging circuit as the trigger circuit, the identification circuit can be triggered immediately after the electronic device accessory is wirelessly connected, thereby improving the reliability of the data transmission circuit. Simultaneously, since the first wireless charging circuit can be the wireless charging circuit within the electronic device, there is no need to introduce an additional wireless charging circuit and boost circuit, thus reducing the complexity of the electronic device structure. Furthermore, since the external device, after being connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, outputs the target voltage to the identification circuit through the power supply terminal of the USB interface to trigger the identification circuit, the target voltage output by the first wireless charging circuit can simulate the voltage of the power supply terminal to trigger the identification circuit, reducing the degree of modification to the data transmission circuit and method, thereby reducing the complexity of the data transmission circuit design.

[0102] In one embodiment, such as Figure 4 As shown, the trigger circuit 30 includes a boost circuit 31 and a first wireless charging circuit 32. The first terminal of the boost circuit 31 is coupled to the battery 60, the second terminal is coupled to the first terminal of the identification circuit 20, and the control terminal is coupled to the first terminal of the first wireless transmission circuit 10 or the first terminal of the control circuit 40. The first terminal of the first wireless charging circuit 32 is coupled to the first terminal of the identification circuit 20 and is used to receive electrical energy transmitted from the electronic device accessory 50.

[0103] In this embodiment, after wirelessly connecting to an electronic device accessory, if the accessory only includes a second wireless transmission circuit, the identification circuit needs to be triggered by a boost circuit to switch the operating mode from the first operating mode to the second operating mode. The first wireless transmission circuit can directly control the boost circuit to raise the battery voltage to the target voltage, and the boost circuit outputs the target voltage to the identification circuit to trigger it. Alternatively, the first wireless transmission circuit can inform the control circuit that the identification circuit needs to be triggered, and the control circuit controls the boost circuit to raise the battery voltage to the target voltage, and the boost circuit outputs the target voltage to the identification circuit to trigger it. Alternatively, if the electronic device accessory includes a second wireless transmission circuit and a second wireless charging circuit, the first wireless charging circuit, after converting the electrical energy transmitted by the accessory, can directly output the target voltage to the identification circuit to trigger it. By using the boost circuit and the first wireless charging circuit as trigger circuits, a higher target voltage can be used to trigger the identification circuit to avoid false triggering, thereby improving the reliability of the data transmission circuit. Simultaneously, since the first wireless charging circuit can be the wireless charging circuit already in the electronic device, there is no need to introduce an additional wireless charging circuit, thus reducing the complexity of the electronic device structure. Furthermore, since the external device, after being connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, outputs a target voltage to the identification circuit through the power supply terminal of the USB interface to trigger the identification circuit, the target voltage output by the boost circuit or the first wireless charging circuit can simulate the voltage of the power supply terminal to trigger the identification circuit, reducing the degree of modification to the data transmission circuit and method, thereby reducing the complexity of the data transmission circuit design.

[0104] In one embodiment, the trigger circuit 30 further includes a first switching unit 33, a second switching unit 34, and a driving circuit 35. The first switching unit 33 is coupled between the second terminal of the boost circuit 31 and the first terminal of the identification circuit 20. The second switching unit 34 is coupled between the first terminal of the first wireless charging circuit 32 and the first terminal of the identification circuit 20. The first terminal of the driving circuit 35 is coupled to the second terminal of the control circuit 40, the second terminal is coupled to the control terminal of the first switching unit 33, and the third terminal is coupled to the control terminal of the second switching unit 34.

[0105] In this embodiment, since both the boost circuit and the first wireless charging circuit are coupled to the first terminal of the identification circuit, to prevent them from simultaneously outputting the target voltage and interfering with each other, a switching unit is needed to selectively connect either the boost circuit or the first wireless charging circuit to the identification circuit when wirelessly connected to the electronic device accessory. The first switching unit is coupled between the boost circuit and the identification circuit, and the second switching unit is coupled between the first wireless charging circuit and the identification circuit, with selection performed by a control circuit. Since the voltage output by the control circuit is too low to activate either the first or second switching unit, a drive circuit amplifies the voltage output by the control circuit, activating either the first or second switching unit. By adding a switching unit to select the boost circuit and the first wireless charging circuit, the simultaneous output of the target voltage by the boost circuit and the first wireless charging circuit avoids data transmission circuit failure, thereby improving the reliability of the data transmission circuit.

[0106] For example, the first switching unit 33 and the second switching unit 34 may each include one or more field-effect transistors.

[0107] For example, in addition to using the first switching unit 33, the second switching unit 34 and the driving circuit 35 to selectively turn on the boost circuit 31 and the first wireless charging circuit 32, an overvoltage protection circuit or other circuits can also be used to selectively turn on the boost circuit 31 and the first wireless charging circuit 32. This is not limited here.

[0108] In one embodiment, the third terminal of the control circuit 40 is coupled to the second terminal of the first wireless charging circuit 32, and is also used to control the on and off of the first switching unit 33 and the second switching unit 34 according to the data sent by the first wireless transmission circuit 10 and / or the first wireless charging circuit 32.

[0109] In this embodiment, since both the boost circuit and the first wireless charging circuit are coupled to the first terminal of the identification circuit, to prevent them from simultaneously outputting the target voltage and interfering with each other, a switching unit is needed to selectively connect either the boost circuit or the first wireless charging circuit to the identification circuit when wirelessly connected to the electronic device accessory. If the electronic device accessory includes a second wireless transmission circuit, the first wireless transmission circuit, after matching with the second wireless transmission circuit, will inform the control circuit of the presence of the second wireless transmission circuit. If the electronic device accessory includes a second wireless charging circuit, the first wireless charging circuit, after receiving power transmitted from the electronic device accessory, will inform the control circuit of the presence of the second wireless charging circuit. When the electronic device accessory includes either a second wireless transmission circuit or a second wireless charging circuit, the control circuit will control the first or second switching unit to conduct according to the data sent by the second wireless transmission circuit or the second wireless charging circuit, thereby outputting the target voltage to trigger the identification circuit. When the electronic device accessory includes both a second wireless transmission circuit and a second wireless charging circuit, the control circuit will control the second switching unit to conduct according to the data sent by the second wireless transmission circuit and the second wireless charging circuit, thereby outputting the target voltage to trigger the identification circuit. By selectively turning on either the first or second switching unit when different circuits are included in the electronic device accessories, data transmission circuit failures are avoided, thereby improving the reliability of the data transmission circuit. Furthermore, when the electronic device accessories include a second wireless transmission circuit and a second wireless charging circuit, prioritizing the turning on of the second switching unit to avoid affecting the charging of the electronic device further enhances the reliability of the data transmission circuit.

[0110] In one embodiment, the drive circuit 35 includes a charge pump circuit.

[0111] In this embodiment, the voltage output by the control circuit is amplified by reusing the charge pump circuit of the electronic device, eliminating the need to add additional circuitry to the electronic device and thus reducing the complexity of the electronic device structure.

[0112] In one embodiment, the identification circuit 20 includes a power management circuit.

[0113] In this embodiment, by reusing the power management circuit of the electronic device as the identification circuit, no additional circuitry needs to be added to the electronic device, thereby reducing the complexity of the electronic device's structure. Simultaneously, since the external device, after being connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, outputs a target voltage to the power management circuit through the power supply terminal of the USB interface to trigger the power management circuit, this method of using the power management circuit as the identification circuit reduces the degree of modification to the data transmission circuit and method, thus lowering the complexity of the data transmission circuit design.

[0114] For example, the power management circuit may include a power management integrated circuit (PMIC). In related technologies, for electronic devices that include a Universal Serial Bus (VBUS) interface, a first terminal of the power management circuit is coupled to the power supply terminal (VBUS terminal) of the VBUS interface.

[0115] In one embodiment, the control circuit 40 includes a processor.

[0116] In this embodiment, because the processor can efficiently process data, using the processor as the control circuit can accelerate the data transmission speed with electronic device accessories, thereby improving data transmission efficiency. Simultaneously, since the processor can be a processor within the electronic device, reusing the processor in the electronic device reduces the complexity of the electronic device's structure.

[0117] In one embodiment, when the electronic device accessory 50 is within a preset range of the first wireless transmission circuit 10, the first wireless transmission circuit 10 is matched with the second wireless transmission circuit of the electronic device accessory 50 to wirelessly connect with the electronic device accessory 50.

[0118] In this embodiment, by bringing the electronic device accessory close to the first wireless transmission circuit, the first wireless transmission circuit can be matched with the second wireless transmission circuit. In the event that the electronic device is powered off or the operating system malfunctions, the data transmission circuit can be wirelessly connected to the electronic device accessory to perform wireless USB data transmission, thereby improving the reliability of the electronic device.

[0119] In one embodiment, when the electronic device accessory 50 is within a preset range of the first wireless charging circuit 32, the first wireless charging circuit 32 receives electrical energy transmitted by the second wireless charging circuit of the electronic device accessory 50 to wirelessly connect with the electronic device accessory 50.

[0120] In this embodiment, by bringing the electronic device accessory close to the second wireless charging circuit, power can be transmitted to the first wireless charging circuit. In the event that the electronic device is powered off or the operating system malfunctions, the data transmission circuit can wirelessly connect with the electronic device accessory to perform wireless USB data transmission, thereby improving the reliability of the electronic device.

[0121] In one embodiment, the trigger circuit 30 is used to output a target voltage to the identification circuit 20 when the first wireless transmission circuit 10 is wirelessly connected to the electronic device accessory 50. The identification circuit 20 is used to switch its operating mode from a first operating mode to a second operating mode upon receiving the target voltage.

[0122] In this embodiment, after the external device is connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, it outputs a target voltage to the identification circuit through the power supply terminal of the USB interface to trigger the identification circuit. By using the trigger circuit to output the target voltage to the identification circuit to trigger the identification circuit to switch its operating mode, the degree of modification to the data transmission circuit and method is reduced, thereby lowering the complexity of the data transmission circuit design.

[0123] It is understood that, in addition to being triggered by a target voltage, the identification circuit 20 can also be triggered by a preset enable signal. For example, the identification circuit 20 includes a buck circuit. A first terminal of the buck circuit is coupled to the battery 60, a second terminal is coupled to the first terminal of the identification circuit 20, and a control terminal is coupled to the first terminal of the first wireless transmission circuit 10. When wirelessly connected to the electronic device accessory 50, the first wireless transmission circuit 10 controls the buck circuit to reduce the voltage of the battery 60, and then outputs a high-level enable signal to trigger the identification circuit 20. When not wirelessly connected to the electronic device accessory 50, the identification circuit 20 pulls the enable signal down to a low level through an internal pull-down circuit.

[0124] In one embodiment, the second terminal of the first wireless transmission circuit 10 is coupled to the second terminal of the identification circuit 20 and the fourth terminal of the control circuit 40. The third terminal of the identification circuit 20 is coupled to the fifth terminal of the control circuit 40.

[0125] In this embodiment, by coupling the second terminal of the first wireless transmission circuit to the second terminal of the identification circuit and the fourth terminal of the control circuit, the identification circuit can identify external devices through the first wireless transmission circuit, thereby improving the reliability of the data transmission circuit. By coupling the third terminal of the identification circuit to the fifth terminal of the control circuit, the control circuit can determine whether to perform wireless USB data transmission with electronic device accessories based on the operating mode of the identification circuit, thereby further improving the reliability of the data transmission circuit.

[0126] For example, the second terminal of the first wireless transmission circuit 10, the second terminal of the identification circuit 20, and the fourth terminal of the control circuit 40 may each include a first data terminal DP and a second data terminal DM.

[0127] In one embodiment, the first wireless transmission circuit 10 performs wireless data transmission with the electronic device accessory 50 via millimeter-wave communication.

[0128] In this embodiment, due to the fast data transmission speed and short transmission distance of millimeter wave communication, the first wireless transmission circuit and electronic device accessories can transmit a large amount of data in a short time and prevent wireless connection with incorrect electronic device accessories, thereby improving the efficiency and reliability of data transmission.

[0129] An exemplary embodiment of this disclosure provides a data transmission circuit, such as Figure 5As shown, the data transmission circuit includes a first wireless transmission circuit 10, a power management circuit 21, a boost circuit 31, a first wireless charging circuit 32, a charge pump circuit 351, a processor 420, a first transistor T1, a second transistor T2, a third transistor T3, and a fourth transistor T4. The first data terminal of the first wireless transmission circuit 10 is coupled to the first data terminals of both the power management circuit 21 and the processor 420. The second data terminal of the first wireless transmission circuit 10 is also coupled to both the power management circuit 21 and the processor 420. The control terminal of the first wireless transmission circuit 10 is coupled to the control terminal of the boost circuit 31. The first terminal of the boost circuit 31 is coupled to the battery 60, and the second terminal is coupled to the first terminal of the first transistor T1. The second terminal of the first transistor T1 is coupled to the first terminal of the second transistor T2, and the control terminal is coupled to both the control terminal of the second transistor T2 and the first terminal of the charge pump circuit 351. The second terminal of the second transistor T2 is coupled to both the first terminal of the power management circuit 21 and the second terminal of the charge pump circuit 351. The first terminal of the first wireless charging circuit 32 is coupled to the first terminal of the processor 420, and the second terminal is coupled to the first terminal of the third transistor T3. The second terminal of the third transistor T3 is coupled to the first terminal of the fourth transistor T4, and the control terminal is coupled to both the control terminal of the fourth transistor T4 and the third terminal of the charge pump circuit 351. The second terminal of the fourth transistor T4 is coupled to both the first terminal of the power management circuit 21 and the second terminal of the charge pump circuit 351. The second terminal of the power management circuit 21 is coupled to the second terminal of the processor 420, and the third terminal and the fourth terminal of the charge pump circuit 351 are both used for coupling to the battery 60. The fifth terminal of the charge pump circuit 351 is coupled to the third terminal of the processor 420. When the electronic device accessory 50 only includes the second wireless transmission circuit, the processor 420 controls the first transistor T1 and the second transistor T2 to be turned on, and controls the third transistor T3 and the fourth transistor T4 to be turned off, via the charge pump circuit 351. The first wireless transmission circuit 10 controls the boost circuit 31 to increase the voltage of the battery 60 to 5V and output it to the first terminal of the power management circuit 21. This triggers the power management circuit 21 to switch its operating mode from the first operating mode to the second operating mode, so that the first wireless transmission circuit 10 can identify the external device coupled to the electronic device accessory 50. When the power management circuit 21 is in the second operating mode, it executes the Universal Serial Bus charging protocol through the first wireless transmission circuit 10 and the electronic device accessory 50 to identify the port of the external device. The port can be, for example, a Standard Downstream Port (SDP) or a Charging Downstream Port (CDP).Upon detecting the port of an external device, the power management circuit 21 informs the processor 420, which then performs wireless USB data transmission with the external device via the first wireless transmission circuit 10 and the electronic device accessory 50. If the electronic device accessory 50 includes a second wireless transmission circuit and a second wireless charging circuit, the processor 420 controls the third transistor T3 and the fourth transistor T4 to conduct via the charge pump circuit 351, and controls the first transistor T1 and the second transistor T2 to deactivate. The first wireless charging circuit 32 converts the electrical energy transmitted from the electronic device accessory 50 to 5V and outputs it to the first terminal of the power management circuit 21, triggering the power management circuit 21 to switch its operating mode from the first operating mode to the second operating mode, so as to identify the external device coupled to the electronic device accessory 50 via the first wireless transmission circuit 10. When the power management circuit 21 is in the second operating mode, it executes the Universal Serial Bus charging protocol via the first wireless transmission circuit 10 and the electronic device accessory 50 to identify the port of the external device. Upon detecting the port of an external device, the power management circuit 21 informs the processor 420, which then performs wireless USB data transfer with the external device via the first wireless transmission circuit 10 and the electronic device accessory 50.

[0130] An exemplary embodiment of this disclosure provides a data transmission method, which can be applied, for example, to the circuit structure described above, such as... Figure 6 As shown, the data transmission method includes:

[0131] S100. When wirelessly connected to an electronic device accessory but not wired connected to it, the operating mode of the identification circuit of the data transmission circuit is switched from the first operating mode to the second operating mode.

[0132] S200: When the identification circuit is in the second working mode, wireless USB data transmission is performed with electronic device accessories.

[0133] In this embodiment, when wirelessly connected to an electronic device accessory but not wired, the operating mode of the identification circuit is switched from a first operating mode to a second operating mode, and wireless USB data transmission is performed with the electronic device accessory. By switching the operating mode of the identification circuit when wirelessly connected to an electronic device accessory but not wired, wireless USB data transmission can be performed with the electronic device accessory even when the electronic device is powered off or the operating system malfunctions, thereby improving the reliability of data transmission.

[0134] In one embodiment, the wireless connection with the electronic device accessory in step S100 can be determined in the following way:

[0135] When the first wireless transmission circuit of the data transmission circuit receives data sent by the electronic device accessory, it establishes a wireless connection with the electronic device accessory.

[0136] In this embodiment, when the electronic device accessory is wirelessly connected to the data transmission circuit, the second wireless transmission circuit automatically pairs with the first wireless transmission circuit and sends data to the first wireless transmission circuit. When the first wireless transmission circuit receives data sent by the electronic device accessory, the second wireless transmission circuit pairs with the first wireless transmission circuit, determining that a wireless connection with the electronic device accessory is established. By using the first wireless transmission circuit to determine whether to establish a wireless connection with the electronic device accessory, timely wireless USB data transmission with the electronic device accessory can be performed, thereby improving the reliability of data transmission.

[0137] In one embodiment, the wireless connection with the electronic device accessory in step S100 can also be determined in the following way:

[0138] When the first wireless charging circuit of the data transmission circuit receives electrical energy transmitted from the electronic device accessory, it establishes a wireless connection with the electronic device accessory.

[0139] In this embodiment, when the electronic device accessory is wirelessly connected to the data transmission circuit, the second wireless charging circuit transmits power to the first wireless charging circuit to wirelessly charge the electronic device. When the first wireless charging circuit receives power transmitted from the electronic device accessory, the second wireless charging circuit transmits power back to the first wireless charging circuit, confirming a wireless connection with the electronic device accessory. By using the first wireless charging circuit to determine whether a wireless connection has been established with the electronic device accessory, timely identification of wireless USB data transmission with the accessory can be achieved, thereby improving the reliability of data transmission.

[0140] In one embodiment, the wireless connection with the electronic device accessory in step S100 can also be determined in the following way:

[0141] When the first wireless transmission circuit of the data transmission circuit receives data sent by the electronic device accessory and / or the first wireless charging circuit of the data transmission circuit receives electrical energy transmitted by the electronic device accessory, a wireless connection is established with the electronic device accessory.

[0142] In this embodiment, when the electronic device accessory is wirelessly connected to the data transmission circuit, the second wireless transmission circuit automatically matches with the first wireless transmission circuit, and / or the second wireless charging circuit transmits power to the first wireless charging circuit. When the first wireless transmission circuit receives data sent by the electronic device accessory and / or the first wireless charging circuit receives power transmitted by the electronic device accessory, the existence of the second wireless transmission circuit matching with the first wireless transmission circuit and / or the second wireless charging circuit transmitting power to the first wireless charging circuit determines a wireless connection with the electronic device accessory. By using the first wireless transmission circuit and the first wireless charging circuit to determine whether to establish a wireless connection with the electronic device accessory, timely wireless USB data transmission with the electronic device accessory can be performed, thereby improving the reliability of data transmission.

[0143] In one embodiment, before switching the operating mode of the identification circuit of the data transmission circuit from the first operating mode to the second operating mode in step S100, the data transmission method further includes:

[0144] The trigger circuit of the control data transmission circuit outputs the target voltage to the identification circuit of the data transmission circuit.

[0145] In this embodiment, after the external device is connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, it outputs a target voltage to the identification circuit through the power supply terminal of the USB interface to trigger the identification circuit. By controlling the trigger circuit to output the target voltage to the identification circuit, the voltage of the power supply terminal can be simulated to trigger the identification circuit, reducing the degree of modification to the data transmission method and thus reducing the complexity of data transmission.

[0146] In one embodiment, the target voltage output by the trigger circuit of the control data transmission circuit to the identification circuit of the data transmission circuit in the above steps is determined in the following manner:

[0147] If the first wireless transmission circuit receives data sent by the electronic device accessory and the first wireless charging circuit receives electrical energy transmitted by the electronic device accessory, or if the first wireless transmission circuit does not receive data sent by the electronic device accessory but the first wireless charging circuit receives electrical energy transmitted by the electronic device accessory, then the second switching unit of the control trigger circuit is turned on so that the first wireless charging circuit outputs the target voltage to the identification circuit.

[0148] The first switching unit of the control trigger circuit is turned off, so that the boost circuit of the data transmission circuit stops outputting the target voltage to the identification circuit.

[0149] If the first wireless transmission circuit receives data sent by the electronic device accessory but the first wireless charging circuit does not receive power transmitted by the electronic device accessory, then the second switching unit is controlled to open, so that the first wireless charging circuit stops outputting the target voltage to the identification circuit.

[0150] The first switching unit is turned on so that the boost circuit outputs the target voltage to the identification circuit.

[0151] In this embodiment, since the trigger circuit includes a boost circuit and a first wireless charging circuit, to prevent the boost circuit and the first wireless charging circuit from simultaneously outputting the target voltage and interfering with each other, it is necessary to select one of the boost circuit and the first wireless charging circuit to output the target voltage to the identification circuit through a switching unit when wirelessly connected to the electronic device accessory. If the first wireless transmission circuit receives data sent by the electronic device accessory and the first wireless charging circuit receives power transmitted by the electronic device accessory, or if the first wireless transmission circuit does not receive data sent by the electronic device accessory but the first wireless charging circuit receives power transmitted by the electronic device accessory, the first wireless charging circuit can directly output the target voltage to the identification circuit, controlling the second switching unit to turn on and the first switching unit to turn off. If the first wireless transmission circuit receives data sent by the electronic device accessory but the first wireless charging circuit does not receive power transmitted by the electronic device accessory, the target voltage can only be output to the identification circuit through the boost circuit, controlling the first switching unit to turn on and the second switching unit to turn off. By preferentially using the first wireless charging circuit to output the target voltage to the identification circuit, the boost circuit can avoid additional losses, thereby reducing the power consumption of the data transmission circuit. Furthermore, when the battery power is low, the first wireless charging circuit can output a more stable target voltage compared to the boost circuit, thereby improving the reliability of data transmission.

[0152] For example, the wireless USB data transfer with the electronic device accessory in step S200 can be determined in the following way:

[0153] Obtain device information for external devices coupled to electronic device accessories.

[0154] When device information indicates that an external device needs to transmit data, wireless USB data transmission can be performed between the device and the external device via electronic device accessories.

[0155] In one exemplary embodiment, a data transmission apparatus is provided for implementing the data transmission method described above. (Reference) Figure 7 As shown, the data transmission device may include a switching module 100 and a transmission module 200, wherein, during the implementation of the above method,

[0156] The switching module 100 is configured to switch the operating mode of the identification circuit of the data transmission circuit from a first operating mode to a second operating mode when wirelessly connected to an electronic device accessory and not wired connected to an electronic device accessory.

[0157] The transmission module 200 is configured to perform wireless USB data transmission with electronic device accessories when the identification circuit is in the second operating mode.

[0158] In one exemplary embodiment, a data transmission apparatus is provided, the apparatus further comprising:

[0159] The control module is configured to control the trigger circuit of the data transmission circuit to output the target voltage to the identification circuit of the data transmission circuit.

[0160] In one exemplary embodiment, a data transmission apparatus is provided, wherein a control module is configured to:

[0161] If the first wireless transmission circuit receives data sent by the electronic device accessory and the first wireless charging circuit receives power transmitted by the electronic device accessory, or if the first wireless transmission circuit does not receive data sent by the electronic device accessory but the first wireless charging circuit receives power transmitted by the electronic device accessory, then the second switching unit of the control trigger circuit is turned on.

[0162] The first switching unit of the control trigger circuit is turned off.

[0163] If the first wireless transmission circuit receives data sent by the electronic device accessory but the first wireless charging circuit does not receive power transmitted by the electronic device accessory, then the second switching unit is controlled to open.

[0164] Turn on the first switching unit.

[0165] An exemplary embodiment of this disclosure provides an electronic device including the data transmission circuit described above.

[0166] In one embodiment, such as Figures 8 to 10 As shown, the electronic device also includes a first housing 70 and a first adsorption unit. A data transmission circuit is disposed within the first housing 70. The first adsorption unit, disposed within the first housing 70, is used to adsorb the electronic device accessory 50.

[0167] In this embodiment, to facilitate wireless connection between the electronic device and its accessories, a first adsorption part is provided within the first housing of the electronic device for wireless connection with the adsorbed accessory. By using the first adsorption part within the electronic device to adsorb the accessory, wireless connection is only established after the accessory is adsorbed, thus avoiding accidental connection and improving the reliability of the electronic device. Furthermore, since millimeter-wave communication has a short range, wireless connection via adsorption allows the electronic device to perform wireless USB data transfer with the accessory within an effective range, further enhancing reliability. Moreover, when the user needs wireless USB data transfer between the electronic device and its accessory, they only need to place the accessory on the electronic device, reducing the complexity of data transfer.

[0168] For example, the first housing 70 of the electronic device does not have a Universal Serial Bus (USB) interface for data transmission. The USB interface could be, for example, a Type-C interface. That is, the electronic device cannot be wired to a data cable.

[0169] In one embodiment, such as Figure 8 As shown, the first adsorption part includes a first magnetic adsorption unit 81 and a second magnetic adsorption unit 82. A first wireless transmission circuit 10 is disposed between the first magnetic adsorption unit 81 and the second magnetic adsorption unit 82.

[0170] In this embodiment, since only two magnetic units are needed to attract electronic device accessories, the first attraction part occupies less space in the electronic device, thereby reducing the complexity of the electronic device structure. Simultaneously, because the first wireless transmission circuit is positioned between the two magnetic units, after the electronic device accessories are attracted, the first and second wireless transmission circuits can align for wireless data transmission, thus improving the reliability of the electronic device.

[0171] For example, the polarities of the first magnetic unit 81 and the second magnetic unit 82 may be the same or different.

[0172] In one embodiment, such as Figure 9 As shown, the first adsorption part includes a plurality of alternating third magnetic units 83 and fourth magnetic units 84 disposed around the first charging coil 321 of the first wireless charging circuit 32 of the data transmission circuit, and a fifth magnetic unit 85 for locking, wherein the fifth magnetic unit 85 is disposed radially outside one of the third magnetic unit 83 or the fourth magnetic unit 84.

[0173] In this embodiment, by providing multiple alternating third and fourth magnetic units arranged around the first charging coil, as well as a fifth magnetic unit for locking, the user can easily rotate the electronic device accessory even when it is not aligned and attracted. Conversely, when the electronic device accessory is aligned and attracted, the user cannot easily rotate it. Through the third, fourth, and fifth magnetic units, the user can align the electronic device accessory and the electronic device for wireless USB data transfer and wireless charging, thereby improving the reliability of the electronic device. Furthermore, since the third, fourth, and fifth magnetic units can be existing magnetic units for wireless charging on the electronic device, the first magnetic unit avoids occupying additional space on the electronic device, thus reducing the complexity of the electronic device's structure.

[0174] For example, the polarity of the fifth magnetic unit 85 and the adjacent third magnetic unit 83 or fourth magnetic unit 84 may be the same or different. The polarities of the adjacent third magnetic unit 83 and fourth magnetic unit 84 are different.

[0175] In one embodiment, such as Figure 8 and Figure 9 As shown, the first wireless transmission circuit 10 is disposed at the lower part of the first housing 70.

[0176] In this embodiment, after the external device is connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, data is transmitted through the USB interface, which is located at the lower part of the first housing. By placing the first wireless transmission circuit at the lower part of the first housing, the degree of circuit modification in the electronic device can be reduced, thereby lowering the complexity of the electronic device design.

[0177] For example, such as Figure 8 As shown, the first magnetic attraction unit 81 and the second magnetic attraction unit 82 are disposed at the lower part of the first housing 70. Figure 9 As shown, the third magnetic attraction unit 83, the fourth magnetic attraction unit 84 and the fifth magnetic attraction unit 85 are disposed in the middle of the first housing 70.

[0178] For example, the lower part of the first housing 70 refers to the portion located below the electronic device when the user holds and uses the electronic device; this is for ease of description only and does not constitute a limitation of the present solution. That is, the portion away from the camera of the electronic device. The middle part of the first housing 70 refers to the portion located in the middle area of ​​the electronic device when the user holds and uses the electronic device; this is for ease of description only and does not constitute a limitation of the present solution.

[0179] In one embodiment, such as Figure 10As shown, multiple alternating third magnetic units 83 and fourth magnetic units 84 are also arranged around the first wireless transmission circuit 10.

[0180] In this embodiment, by placing the first wireless transmission circuit between the areas surrounded by the third and fourth magnetic units, the placement of the first wireless transmission circuit is facilitated, thereby reducing the complexity of the electronic device design. Simultaneously, since the first wireless transmission circuit is located between the areas surrounded by the third and fourth magnetic units, it does not require additional space, thus reducing the complexity of the electronic device accessory structure.

[0181] An exemplary embodiment of this disclosure also provides an electronic device, such as Figures 8 to 10 As shown, the electronic device includes a first wireless transmission circuit 10, a first housing 70, and a first adsorption part. The first wireless transmission circuit 10 is used for wireless data transmission with the electronic device accessory 50. The first wireless transmission circuit 10 is disposed inside the first housing 70. The first adsorption part is disposed inside the first housing 70 and is used to adsorb the electronic device accessory 50.

[0182] In this embodiment, to facilitate wireless connection between the electronic device and its accessories, a first adsorption part is provided within the first housing of the electronic device for wireless connection with the adsorbed accessory. By using the first adsorption part within the electronic device to adsorb the accessory, wireless connection is only established after the accessory is adsorbed, thus avoiding accidental connection and improving the reliability of the electronic device. Furthermore, since millimeter-wave communication has a short range, wireless connection via adsorption allows the electronic device to perform wireless USB data transfer with the accessory within an effective range, further enhancing reliability. Moreover, when the user needs wireless USB data transfer between the electronic device and its accessory, they only need to place the accessory on the electronic device, reducing the complexity of data transfer.

[0183] For example, the first housing 70 of the electronic device does not have a Universal Serial Bus (USB) interface for data transmission. The USB interface could be, for example, a Type-C interface. That is, the electronic device cannot be wired to a data cable.

[0184] For example, the first wireless transmission circuit 10 may be the first wireless transmission circuit 10 in the data transmission circuit described above. The electronic device may also include the circuits in the data transmission circuit described above, which will not be elaborated here.

[0185] In one embodiment, such as Figure 8As shown, the first adsorption part includes a first magnetic adsorption unit 81 and a second magnetic adsorption unit 82. A first wireless transmission circuit 10 is disposed between the first magnetic adsorption unit 81 and the second magnetic adsorption unit 82.

[0186] In this embodiment, since only two magnetic units are needed to attract electronic device accessories, the first attraction part occupies less space in the electronic device, thereby reducing the complexity of the electronic device structure. Simultaneously, because the first wireless transmission circuit is positioned between the two magnetic units, after the electronic device accessories are attracted, the first and second wireless transmission circuits can align for wireless data transmission, thus improving the reliability of the electronic device.

[0187] In one embodiment, such as Figure 9 As shown, the electronic device also includes a first wireless charging circuit 32. The first adsorption part includes a plurality of third magnetic units 83 and fourth magnetic units 84 arranged alternately and surrounding the first charging coil 321 of the first wireless charging circuit 32, and a fifth magnetic unit 85 for locking, the fifth magnetic unit 85 being disposed radially outside one of the third magnetic unit 83 or the fourth magnetic unit 84.

[0188] In this embodiment, by providing multiple alternating third and fourth magnetic units arranged around the first charging coil, as well as a fifth magnetic unit for locking, the user can easily rotate the electronic device accessory even when it is not aligned and attracted. Conversely, when the electronic device accessory is aligned and attracted, the user cannot easily rotate it. Through the third, fourth, and fifth magnetic units, the user can align the electronic device accessory and the electronic device for wireless USB data transfer and wireless charging, thereby improving the reliability of the electronic device. Furthermore, since the third, fourth, and fifth magnetic units can be existing magnetic units for wireless charging on the electronic device, the first magnetic unit avoids occupying additional space on the electronic device, thus reducing the complexity of the electronic device's structure.

[0189] In one embodiment, such as Figure 8 and Figure 9 As shown, the first wireless transmission circuit 10 is disposed at the lower part of the first housing 70.

[0190] In this embodiment, after the external device is connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, data is transmitted through the USB interface, which is located at the lower part of the first housing. By placing the first wireless transmission circuit at the lower part of the first housing, the degree of circuit modification in the electronic device can be reduced, thereby lowering the complexity of the electronic device design.

[0191] For example, such as Figure 8As shown, the first magnetic attraction unit 81 and the second magnetic attraction unit 82 are disposed at the lower part of the first housing 70. Figure 9 As shown, the third magnetic attraction unit 83, the fourth magnetic attraction unit 84 and the fifth magnetic attraction unit 85 are disposed in the middle of the first housing 70.

[0192] In one embodiment, such as Figure 10 As shown, multiple alternating third magnetic units 83 and fourth magnetic units 84 are also arranged around the first wireless transmission circuit 10.

[0193] In this embodiment, by placing the first wireless transmission circuit between the areas surrounded by the third and fourth magnetic units, the placement of the first wireless transmission circuit is facilitated, thereby reducing the complexity of the electronic device design. Simultaneously, since the first wireless transmission circuit is located between the areas surrounded by the third and fourth magnetic units, it does not require additional space, thus reducing the complexity of the electronic device accessory structure.

[0194] An exemplary embodiment of this disclosure provides an electronic device accessory 50, such as... Figure 11 As shown, the electronic device accessory 50 includes a second wireless transmission circuit 51 and an interface 52. The second wireless transmission circuit 51 is used for wireless USB data transmission with the electronic device. A first end of the interface 52 is coupled to the second wireless transmission circuit 51, and a second end is used for coupling with an external device.

[0195] In this embodiment, the electronic device accessory includes a second wireless transmission circuit and an interface, which are coupled together. The interface is used to couple with an external device. When the external device needs to perform wireless USB data transmission with the electronic device, the external device can transmit data with the second wireless transmission circuit through the interface, and then transmit wireless USB data with the electronic device through the second wireless transmission circuit. Since the electronic device can recognize the external device when wirelessly connected, and even when the electronic device is powered off or the operating system malfunctions, the external device can still transmit wireless USB data with the electronic device through the second wireless transmission circuit and interface, thereby improving the reliability of the electronic device accessory.

[0196] In one embodiment, the electronic device accessory 50 further includes a second wireless charging circuit 53. The second wireless charging circuit 53 is coupled to a third terminal of the interface 52 and is used to transmit electrical energy to the electronic device.

[0197] In this embodiment, power is transmitted to the electronic device via a second wireless charging circuit, eliminating the need for an interface for charging and achieving a portless design, thereby improving the reliability of electronic device accessories. Furthermore, since the second wireless charging circuit can trigger the electronic device to recognize external devices after transmitting power, the reliability of electronic device accessories is further enhanced.

[0198] In one embodiment, such as Figures 12 to 14 As shown, the electronic device accessory 50 also includes a second housing 54 and a second adsorption part. A second wireless transmission circuit 51 is disposed within the second housing 54. The second adsorption part is disposed within the second housing 54 and is used to adsorb the electronic device.

[0199] In this embodiment, to facilitate wireless connection between the electronic device and its accessory, a second adsorption part is provided within the second housing of the accessory to adsorb the electronic device and wirelessly connect it. By providing a second adsorption part within the accessory to adsorb the electronic device, wireless connection is only established after adsorption, avoiding accidental connection and improving the reliability of the accessory. Furthermore, since millimeter-wave communication has a short range, adsorption allows the accessory to perform wireless USB data transfer with the electronic device within an effective range, further enhancing its reliability. Moreover, when the user needs wireless USB data transfer between the electronic device and its accessory, they only need to place the accessory on the electronic device, reducing the complexity of data transfer.

[0200] For example, a second wireless charging circuit 53 is also provided inside the second housing 54. An interface 52 is also provided on the surface of the second housing 54.

[0201] In one embodiment, such as Figure 12 As shown, the second adsorption unit includes a sixth magnetic adsorption unit 55 and a seventh magnetic adsorption unit 56. A second wireless transmission circuit 51 is disposed between the sixth magnetic adsorption unit 55 and the seventh magnetic adsorption unit 56.

[0202] In this embodiment, since only two magnetic units are needed to attach the electronic device, the second attachment portion occupies less space in the electronic device accessory, thereby reducing the complexity of the accessory structure. Simultaneously, because the second wireless transmission circuit is positioned between the two magnetic units, after the electronic device is attached, the second and first wireless transmission circuits can align for wireless USB data transmission, thus improving the reliability of the electronic device accessory.

[0203] For example, the polarities of the sixth magnetic unit 55 and the seventh magnetic unit 56 can be the same or different. Specifically, the polarities of the sixth magnetic unit 55 and the first magnetic unit 81 are opposite, and the polarities of the seventh magnetic unit 56 and the second magnetic unit 82 are opposite.

[0204] For example, interface 52 is disposed on one side of the second housing 54.

[0205] In one embodiment, such as Figure 13As shown, the second adsorption unit includes a plurality of alternately arranged eighth magnetic units 57 and ninth magnetic units 58 surrounding the second charging coil 531 of the second wireless charging circuit 53, and a tenth magnetic unit 59 for locking. The tenth magnetic unit 59 is disposed radially outside one of the eighth magnetic unit 57 or the ninth magnetic unit 58.

[0206] In this embodiment, by providing multiple alternately arranged eighth and ninth magnetic units surrounding the second charging coil, as well as a tenth magnetic unit for locking, the user can easily rotate the electronic device accessory even when it is not aligned and attracted. Conversely, when the electronic device accessory is aligned and attracted, the user cannot easily rotate it. Through the eighth, ninth, and tenth magnetic units, the user can align the electronic device accessory and the electronic device for wireless USB data transfer and wireless charging, thereby improving the reliability of the electronic device. Furthermore, since the eighth, ninth, and tenth magnetic units can be existing magnetic units for wireless charging on the electronic device accessory, the second magnetic unit avoids occupying additional space on the accessory, thus reducing the complexity of the accessory's structure.

[0207] For example, the tenth magnetic unit 59 may have the same or different polarity as the adjacent eighth magnetic unit 57 and ninth magnetic unit 58. The adjacent eighth magnetic unit 57 and ninth magnetic unit 58 have different polarities. The eighth magnetic unit 57 and third magnetic unit 83 have opposite polarities. The ninth magnetic unit 58 and fourth magnetic unit 84 have opposite polarities. The tenth magnetic unit 59 and fifth magnetic unit 85 have opposite polarities.

[0208] In one embodiment, such as Figure 12 and Figure 13 As shown, the second wireless transmission circuit 51 is disposed at the lower part of the second housing 54.

[0209] In this embodiment, after the external device is connected to the electronic device with a Universal Serial Bus (USB) interface via a wired connection, data is transmitted through the USB interface, which is located at the lower part of the first housing. By placing the second wireless transmission circuit at the lower part of the second housing, the electronic device accessory does not protrude from the electronic device when the second and first wireless transmission circuits are aligned, thereby improving the reliability of the electronic device accessory.

[0210] For example, such as Figure 12 As shown, the sixth magnetic attraction unit 55 and the seventh magnetic attraction unit 56 are disposed at the lower part of the second housing 54. Figure 13 As shown, the eighth magnetic attraction unit 57, the ninth magnetic attraction unit 58 and the tenth magnetic attraction unit 59 are disposed in the middle of the second housing 54.

[0211] For example, interface 52 is located at the lower part of the second housing 54.

[0212] For example, the lower part of the second housing 54 refers to the portion corresponding to the lower part of the electronic device accessory 50 after the user attaches it to the electronic device. This is for ease of description only and does not constitute a limitation of this solution. The middle part of the second housing 54 refers to the portion corresponding to the middle part of the electronic device accessory 50 after the user attaches it to the electronic device. This is for ease of description only and does not constitute a limitation of this solution.

[0213] In one embodiment, such as Figure 14 As shown, multiple alternately arranged eighth magnetic units 57 and ninth magnetic units 58 are also arranged around the second wireless transmission circuit 51.

[0214] In this embodiment, by placing the second wireless transmission circuit between the area surrounded by the eighth and ninth magnetic units, the placement of the second wireless transmission circuit is facilitated, thereby reducing the complexity of the electronic device accessory design. Simultaneously, since the second wireless transmission circuit is located between the area surrounded by the eighth and ninth magnetic units, it does not require additional space, thus reducing the structural complexity of the electronic device accessory.

[0215] For example, electronic devices include mobile phones, laptops, tablets, and wearable devices.

[0216] For example, refer to Figure 15 As shown, the electronic device 400 may include one or more of the following components: processing component 402, memory 404, power supply component 406, multimedia component 408, audio component 410, input / output (I / O) interface 412, sensor component 414, and communication component 416.

[0217] Processing component 402 typically controls the overall operation of electronic device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0218] Memory 404 is configured to store various types of data to support the operation of electronic device 400. Examples of this data include instructions for any application or method operating on electronic device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage terminal or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0219] Power supply component 406 provides power to various components of electronic device 400. Power supply component 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 400.

[0220] Multimedia component 408 includes a screen that provides an output interface between electronic device 400 and user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 408 includes a front-facing camera module and / or a rear-facing camera module. When electronic device 400 is in an operating mode, such as shooting mode or video mode, the front-facing camera module and / or rear-facing camera module may receive external multimedia data. Each front-facing camera module and rear-facing camera module may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0221] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when electronic device 400 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0222] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0223] Sensor assembly 414 includes one or more sensors for providing state assessments of various aspects of electronic device 400. For example, sensor assembly 414 may detect the on / off state of electronic device 400, the relative positioning of components such as the display and keypad of electronic device 400, changes in position of electronic device 400 or a component of electronic device 400, the presence or absence of user contact with electronic device 400, orientation or acceleration / deceleration of electronic device 400, and temperature changes of electronic device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0224] Communication component 416 is configured to facilitate wired or wireless communication between electronic device 400 and other terminals. Electronic device 400 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0225] In an exemplary embodiment, the electronic device 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing terminals (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0226] In one exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of an electronic device 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage terminal, etc. When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the method shown in the above embodiments.

[0227] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0228] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0229] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0230] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A data transmission circuit, characterized in that, The data transmission circuit includes: A first wireless transmission circuit, the first wireless transmission circuit being used for wireless data transmission with electronic device accessories; An identification circuit, which is coupled to the first wireless transmission circuit; A trigger circuit is coupled to the identification circuit. The trigger circuit is used to trigger the identification circuit to switch the working mode from the first working mode to the second working mode when the first wireless transmission circuit is wirelessly connected to the accessory of the electronic device. The control circuit is coupled to both the first wireless transmission circuit and the identification circuit. The control circuit is used to perform wireless USB data transmission with the electronic device accessory through the first wireless transmission circuit when the identification circuit is in the second working mode.

2. The data transmission circuit according to claim 1, characterized in that, The trigger circuit includes: A boost circuit, wherein a first terminal of the boost circuit is coupled to the battery of the electronic device, a second terminal of the boost circuit is coupled to the first terminal of the identification circuit, and a control terminal of the boost circuit is coupled to the first terminal of the first wireless transmission circuit or the first terminal of the control circuit; and / or, A first wireless charging circuit, wherein a first terminal of the first wireless charging circuit is coupled to a first terminal of the identification circuit, and the first wireless charging circuit is used to receive electrical energy transmitted by the accessory of the electronic device.

3. The data transmission circuit according to claim 2, characterized in that, The trigger circuit includes the boost circuit and the first wireless charging circuit; the trigger circuit also includes: A first switching unit is coupled between the second terminal of the boost circuit and the first terminal of the identification circuit; The second switching unit is coupled between the first terminal of the first wireless charging circuit and the first terminal of the identification circuit. The driving circuit has a first terminal coupled to a second terminal of the control circuit, a second terminal coupled to a control terminal of the first switching unit, and a third terminal coupled to a control terminal of the second switching unit.

4. The data transmission circuit according to claim 3, characterized in that, The third terminal of the control circuit is coupled to the second terminal of the first wireless charging circuit. The control circuit is also used to control the conduction and disconnection of the first switching unit and the second switching unit according to the data sent by the first wireless transmission circuit and / or the first wireless charging circuit.

5. The data transmission circuit according to claim 3, characterized in that, The driving circuit includes a charge pump circuit; and / or, the identification circuit includes a power management circuit; and / or, the control circuit includes a processor.

6. The data transmission circuit according to claim 2, characterized in that, When the electronic device accessory is within a preset range of the first wireless transmission circuit, the first wireless transmission circuit is matched with a second wireless transmission circuit of the electronic device accessory to wirelessly connect to the electronic device accessory; and / or, When the electronic device accessory is within a preset range of the first wireless charging circuit, the first wireless charging circuit receives electrical energy transmitted by the second wireless charging circuit of the electronic device accessory to wirelessly connect with the electronic device accessory.

7. The data transmission circuit according to claim 1, characterized in that, The triggering circuit is used to output a target voltage to the identification circuit when the first wireless transmission circuit is wirelessly connected to the accessory of the electronic device; The identification circuit is used to switch the operating mode from the first operating mode to the second operating mode when the target voltage is received.

8. The data transmission circuit according to any one of claims 1 to 7, characterized in that, The second terminal of the first wireless transmission circuit is coupled to the second terminal of the identification circuit and the fourth terminal of the control circuit; the third terminal of the identification circuit is coupled to the fifth terminal of the control circuit; and / or, the first wireless transmission circuit performs wireless data transmission with the electronic device accessory in a millimeter-wave communication manner.

9. A data transmission method, characterized in that, The data transmission method includes: When wirelessly connected to an electronic device accessory but not wired connected to the electronic device accessory, the operating mode of the identification circuit of the data transmission circuit is switched from the first operating mode to the second operating mode. When the identification circuit operates in the second operating mode, it performs wireless USB data transmission with the electronic device accessory.

10. The data transmission method according to claim 9, characterized in that, The wireless connection with electronic device accessories includes: When the first wireless transmission circuit of the data transmission circuit receives data sent by the electronic device accessory and / or the first wireless charging circuit of the data transmission circuit receives electrical energy transmitted by the electronic device accessory, a wireless connection is established with the electronic device accessory.

11. The data transmission method according to claim 10, characterized in that, Before switching the operating mode of the identification circuit of the data transmission circuit from the first operating mode to the second operating mode, the data transmission method further includes: The trigger circuit of the data transmission circuit outputs the target voltage to the identification circuit of the data transmission circuit.

12. The data transmission method according to claim 11, characterized in that, The trigger circuit controlling the data transmission circuit outputs a target voltage to the identification circuit of the data transmission circuit, including: If the first wireless transmission circuit receives data sent by the electronic device accessory and the first wireless charging circuit receives power transmitted by the electronic device accessory, or if the first wireless transmission circuit does not receive data sent by the electronic device accessory but the first wireless charging circuit receives power transmitted by the electronic device accessory, then the second switching unit of the trigger circuit is controlled to be turned on, so that the first wireless charging circuit outputs the target voltage to the identification circuit. The first switching unit of the trigger circuit is turned off, so that the boost circuit of the trigger circuit stops outputting the target voltage to the identification circuit; If the first wireless transmission circuit receives data sent by the electronic device accessory and the first wireless charging circuit does not receive power transmitted by the electronic device accessory, then the second switching unit is controlled to open, so that the first wireless charging circuit stops outputting the target voltage to the identification circuit; The first switching unit is turned on so that the boost circuit outputs the target voltage to the identification circuit.

13. A data transmission device, characterized in that, The data transmission device includes: A switching module is configured to switch the operating mode of the identification circuit of the data transmission circuit from a first operating mode to a second operating mode when wirelessly connected to an electronic device accessory and not wired connected to the electronic device accessory. A transmission module configured to perform wireless USB data transmission with the electronic device accessory when the identification circuit is operating in the second operating mode.

14. An electronic device, characterized in that, The electronic device includes a data transmission circuit as described in any one of claims 1 to 8; or, processor; Memory used to store the processor's executable instructions; The processor is configured to perform the data transmission method as described in any one of claims 9 to 12.

15. The electronic device according to claim 14, characterized in that, The electronic device also includes: A first housing, wherein the data transmission circuit is disposed within the first housing; A first adsorption section is disposed inside the first housing and is used to adsorb the electronic device accessory.

16. The electronic device according to claim 15, characterized in that, The first adsorption unit includes a first magnetic adsorption unit and a second magnetic adsorption unit; the first wireless transmission circuit is disposed between the first magnetic adsorption unit and the second magnetic adsorption unit.

17. The electronic device according to claim 15, characterized in that, The first adsorption unit includes a plurality of third magnetic units and fourth magnetic units arranged alternately and surrounding the first charging coil of the first wireless charging circuit of the data transmission circuit, and a fifth magnetic unit for locking, wherein the fifth magnetic unit is disposed radially outside one of the third magnetic units or the fourth magnetic units.

18. The electronic device according to any one of claims 15 to 17, characterized in that, The first wireless transmission circuit is located at the lower part of the first housing.

19. The electronic device according to claim 17, characterized in that, The third and fourth magnetic units, arranged alternately, are also arranged around the first wireless transmission circuit.

20. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the data transmission method as described in any one of claims 9 to 12.

21. An electronic device, characterized in that, The electronic device includes: A first wireless transmission circuit, the first wireless transmission circuit being used for wireless data transmission with electronic device accessories; A first housing, wherein the first wireless transmission circuit is disposed within the first housing; A first adsorption section is disposed inside the first housing and is used to adsorb the electronic device accessory.

22. The electronic device according to claim 21, characterized in that, The first adsorption unit includes a first magnetic adsorption unit and a second magnetic adsorption unit; the first wireless transmission circuit is disposed between the first magnetic adsorption unit and the second magnetic adsorption unit.

23. The electronic device according to claim 21, characterized in that, The electronic device further includes a first wireless charging circuit; the first adsorption part includes a plurality of third magnetic units and fourth magnetic units arranged alternately and surrounding the first charging coil of the first wireless charging circuit, and a fifth magnetic unit for locking, wherein the fifth magnetic unit is disposed radially outside one of the third magnetic units or the fourth magnetic units.

24. The electronic device according to any one of claims 21 to 23, characterized in that, The first wireless transmission circuit is located at the lower part of the first housing.

25. The electronic device according to claim 23, characterized in that, The third and fourth magnetic units, arranged alternately, are also arranged around the first wireless transmission circuit.

26. An accessory for an electronic device, characterized in that, The electronic device accessories include: A second wireless transmission circuit is used for wireless USB data transmission with electronic devices; An interface, wherein the first end of the interface is coupled to the second wireless transmission circuit, and the second end of the interface is used to couple to an external device.

27. The electronic device accessory according to claim 26, characterized in that, The electronic device accessory also includes: A second wireless charging circuit is coupled to the third terminal of the interface and is used to transmit electrical energy to the electronic device.

28. The electronic device accessory according to claim 26, characterized in that, The electronic device accessory also includes: The second housing, inside which the second wireless transmission circuit is disposed; The second adsorption section is disposed inside the second housing and is used to adsorb the electronic device.

29. The electronic device accessory according to claim 28, characterized in that, The second adsorption unit includes a sixth magnetic adsorption unit and a seventh magnetic adsorption unit; the second wireless transmission circuit is disposed between the sixth magnetic adsorption unit and the seventh magnetic adsorption unit.

30. The electronic device accessory according to claim 28, characterized in that, The second adsorption unit includes a plurality of alternating eighth and ninth magnetic units arranged around the second charging coil of the second wireless charging circuit of the electronic device accessory, and a tenth magnetic unit for locking, the tenth magnetic unit being disposed radially outside one of the eighth or ninth magnetic units.

31. The electronic device accessory according to any one of claims 28 to 30, characterized in that, The second wireless transmission circuit is located at the lower part of the second housing.

32. The electronic device accessory according to claim 30, characterized in that, The eighth and ninth magnetic units, arranged alternately, are also arranged around the second wireless transmission circuit.

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