AR glasses control box

Abstract

The utility model relates to an AR glasses control box. Comprising a first Type-C interface, a second Type-C interface, a protocol identification module and a main chip, the first Type-C interface is connected with AR glasses; the second Type-C interface transmits a video signal of external equipment; the protocol identification module outputs a first identification signal under the condition that the communication protocol type of the video signal is a target communication protocol; a signal identification pin of the main chip is connected with the protocol identification module; a first input pin of the switch module is connected with the second Type-C interface, a first output pin of the switch module is connected with the first Type-C interface, a first enabling pin of the switch module is connected with a first control pin of the main chip, and a second enabling pin of the switch module is connected with a second control pin of the main chip; under the condition that the first identification signal is accessed, the main chip outputs a first control signal and a second control signal to control a signal transmission path between the first input pin and the first output pin to be conducted, so that a video signal of a target communication protocol is directly transmitted to the AR glasses.

Description

Technical Field

[0001] The present application relates to the field of AR glasses control technology, and in particular to an AR glasses control box. Background Art

[0002] AR (Augmented Reality) glasses are smart glasses that integrate augmented reality technology. They enhance the real world by overlaying digital information on the user's field of view. AR glasses typically require an AR glasses control box. With the rapid development of AR glasses, users are increasingly demanding the functionality of AR glasses control boxes.

[0003] The AR glasses control box is used to interact with AR glasses, such as connecting external devices to transmit virtual images to AR glasses for display. Currently, mainstream AR glasses control boxes can basically support AR glasses' display, voice processing, wireless screen projection, image transmission and other functions; game players, movie enthusiasts, etc. have put forward new requirements for AR glasses control boxes. External devices can be connected to the AR glasses control box through wires to watch movies or play games on a large screen in high definition; the current AR glasses control box can convert the incoming video signal into a communication protocol that AR glasses can recognize, such as converting the communication protocol of the video signal into a communication protocol that can be recognized by the main chip through a signal protocol conversion chip, and then enabling the video signal to be connected to the main chip, which then converts the communication protocol of the video signal into a target communication protocol that can be recognized by AR glasses.

[0004] However, the above implementation is relatively complicated and results in huge power consumption due to multiple communication protocol conversions. Utility Model Content

[0005] Based on this, the present application provides an AR glasses control box to solve the problem that the AR glasses control box needs to perform multiple communication protocol conversions on the received video signals, resulting in huge power consumption.

[0006] In a first aspect, some embodiments provide an AR glasses control box, the AR glasses control box comprising:

[0007] A first Type-C interface, used to connect to the AR glasses to transmit a video signal of a target communication protocol to the AR glasses;

[0008] The second Type-C interface is used to transmit the video signal output by the external device when connected to the external device;

[0009] A protocol identification module connected to the second Type-C interface;

[0010] A main chip is configured with a signal identification pin, a first control pin, and a second control pin, wherein the signal identification pin is connected to the protocol identification module;

[0011] A switch module is configured with a first enable pin, a second enable pin, a first input pin, and a first output pin, wherein the first enable pin is connected to the first control pin, the second enable pin is connected to the second control pin, the first input pin is connected to the second Type-C interface, and the first output pin is connected to the first Type-C interface;

[0012] Wherein, the protocol identification module is configured to: output a first identification signal when the communication protocol type of the video signal is the target communication protocol;

[0013] The main chip is configured to: when the first identification signal is received, output a first control signal through the first control pin and output a second control signal through the second control pin, so as to control the signal transmission path between the first input pin and the first output pin to be conductive, so that the video signal of the target communication protocol is transmitted to the AR glasses through the second Type-C interface, the signal transmission path between the first input pin and the first output pin, and the first Type-C interface.

[0014] Technical effect: The communication protocol of the video signal of the external device connected to the second Type-C interface is identified by the protocol identification module. When the communication line protocol of the video signal output by the external device is the target communication protocol, the video signal of the target communication protocol can be directly recognized by the AR glasses. The main chip outputs the first control signal and the second control signal to jointly control the switch module to turn on the signal transmission line between the first Type-C interface and the second Type-C interface, which can directly transmit the video signal of the target communication protocol to the VR glasses. There is no need to transmit the video signal to the main chip for multiple signal protocol conversions, which reduces the power consumption of the AR glasses control box and reduces the signal protocol conversion cost.

[0015] In some embodiments, the main chip is further configured with a first signal protocol pin and a second signal protocol pin;

[0016] The switch module is further configured with a second input pin and a second output pin, and the second output pin is connected to the first signal protocol pin;

[0017] The protocol identification module is further configured to: output a second identification signal when the communication protocol type of the video signal is the first communication protocol;

[0018] The main chip is further configured to: upon receiving the second identification signal, output a third control signal through the first control pin to control the signal transmission path between the first input pin and the second output pin to be conductive, and convert the video signal of the first communication protocol into a video signal of the second communication protocol;

[0019] The AR glasses control box also includes:

[0020] a protocol conversion module, connected to the second signal protocol pin and the second input pin of the switch module respectively, the protocol conversion module being configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol;

[0021] The main chip is also configured to: upon receiving the second identification signal, output a fourth control signal through the second control pin to control the conduction of the signal transmission path between the second input pin and the first output pin, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second output pin and the first output pin and the first Type-C interface.

[0022] Technical effect: The AR glasses control box can also be connected to external devices that output video signals of the first communication line protocol, thereby improving the compatibility of the AR glasses control box.

[0023] In some embodiments, the switch module includes:

[0024] a first controlled switch configured with the first enable pin, the first input pin, the second output pin, and a third output pin;

[0025] The second controlled switch is configured with the second enable pin, the first output pin, the second input pin and a third input pin, wherein the third input pin is connected to the third output pin.

[0026] Technical effect: By inputting control signals of different level states into the first enable pin of the first controlled switch, it is possible to select a signal transmission path between the first input pin and the second output pin or a signal transmission path between the first input pin and the third output pin, thereby realizing the selection of different signal transmission paths for transmitting video signals of different communication protocols.

[0027] Accordingly, by inputting control signals of different level states into the second enable pin of the second controlled switch, the signal transmission path between the second input pin and the first output pin or the signal transmission path between the third input pin and the first output pin can be selected to be turned on, thereby realizing the transmission of video signals of target communication protocols from different sources to the first Type-C interface.

[0028] In some embodiments, the first communication protocol includes a USB 3.0 communication protocol.

[0029] In some embodiments, the main chip is further configured with a second signal protocol pin and a third signal protocol pin, and the third signal protocol pin is connected to the second Type-C interface;

[0030] The switch module is further configured with a second input pin;

[0031] The main chip is further configured to: when a video signal of a third communication protocol is received via the third signal protocol pin and the second Type-C interface, convert the video signal of the third communication protocol into a video signal of the second communication protocol;

[0032] The AR glasses control box also includes:

[0033] a protocol conversion module, connected to the second signal protocol pin and the second input pin of the switch module respectively, the protocol conversion module being configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol;

[0034] The main chip is also configured to: when receiving the video signal of the third communication protocol, output a fourth control signal through the second control pin to control the signal transmission path between the second input pin and the first output pin to be conductive, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second input pin and the first output pin and the first Type-C interface.

[0035] Technical effect: The AR glasses control box is also compatible with external devices that output video signals of the third communication protocol, thereby improving the compatibility of the AR glasses control box.

[0036] In some embodiments, the third communication protocol includes a USB 2.0 communication protocol.

[0037] Technical effect: The third communication protocol includes the USB2.0 communication protocol, that is, the AR glasses control box in this embodiment can connect to an external device that outputs a video signal of the USB2.0 communication protocol.

[0038] In some embodiments, the main chip is further configured with a second signal protocol pin and a communication pin, and the communication pin is used to connect to a communication module to access the video signal through the communication module;

[0039] The switch module is further configured with a second input pin;

[0040] The main chip is further configured to: when a video signal of a preset communication protocol is received via the communication module, convert the video signal of the preset communication protocol into a video signal of a second communication protocol;

[0041] The AR glasses control box also includes:

[0042] a protocol conversion module, connected to the second signal protocol pin and the second input pin of the switch module respectively, the protocol conversion module being configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol;

[0043] The main chip is also configured to: when receiving the video signal of the preset communication protocol, output a fourth control signal through the second control pin to control the signal transmission path between the second input pin and the first output pin to be turned on, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second input pin and the first output pin and the first Type-C interface.

[0044] Technical effect: The AR glasses control box can also transmit video signals accessed through the communication module to the AR glasses in real time, thereby improving the applicability and flexibility of the AR glasses control box.

[0045] In some embodiments, the main chip is further configured with memory pins, which are connected to the communication pins for accessing a storage module;

[0046] The storage module is used to store the video signal of the preset communication protocol accessed by the communication module;

[0047] The main chip is also configured to: when the storage module stores the video signal of the preset communication protocol, convert the video signal of the preset communication protocol into a video signal of the second communication protocol, and output a fourth control signal through the second control pin to control the signal transmission path between the second input pin and the first output pin to be conductive, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second input pin and the first output pin and the first Type-C interface.

[0048] Technical effect: The AR glasses control box can also stably transmit the video signal connected to the storage module to the AR glasses, thereby improving the stability and applicability of the signal transmission of the AR glasses control box.

[0049] In some embodiments, the second communication protocol includes an HDMI communication protocol.

[0050] Technical effect: The second communication protocol includes the HDMI communication protocol, and the corresponding second signal protocol pin is the HDMI protocol pin, which can ensure low-latency video transmission, meet the real-time interaction requirements of AR glasses, and ensure the transmission quality of video signals.

[0051] In some embodiments, the target communication protocol includes a DP communication protocol.

[0052] Technical effect: The target communication protocol includes the DP communication protocol, so that the AR glasses control box can adapt to AR glasses that can only recognize the DP communication protocol.

[0053] In some embodiments, the AR glasses control box further includes:

[0054] A DP REDRIVER chip is connected to the first output pin of the switch module and the first Type-C interface. The DP REDRIVER chip is configured to perform signal enhancement processing on the video signal of the target communication protocol and transmit it to the AR glasses through the first Type-C interface.

[0055] Technical effect: Adding a DP REDRIVER chip between the first Type-C interface and the first output pin of the switch module can improve the quality of the video signal transmitted from the AR glasses control box to the AR glasses, and ensure the accuracy of the video signal received by the AR glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0057] Figure 1 This is one of the structural schematic block diagrams of the AR glasses control box provided in some embodiments of the present application;

[0058] Figure 2 The second schematic block diagram of the structure of the AR glasses control box provided in some embodiments of the present application;

[0059] Figure 3A schematic block diagram of the structure of a switch module provided in some embodiments of the present application;

[0060] Figure 4 The third structural schematic block diagram of the AR glasses control box provided in some embodiments of the present application;

[0061] Figure 5 A fourth structural schematic block diagram of the AR glasses control box provided in some embodiments of the present application;

[0062] Figure 6 A fifth structural schematic block diagram of the AR glasses control box provided in some embodiments of the present application;

[0063] Figure 7 This is the sixth structural schematic diagram of the AR glasses control box provided in some embodiments of the present application.

[0064] Description of reference numerals:

[0065] 100: AR glasses control box; 110: First Type-C interface; 120: Second Type-C interface; 130: Protocol identification module; 140: Main chip; 150: Switch module; 151: First controlled switch; 152: Second controlled switch; 160: Protocol conversion module; 170: DP REDRIVER chip; 200: VR glasses; 300: External device; 400: Communication module; 500: Storage module. DETAILED DESCRIPTION

[0066] The following embodiments are described in detail, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following embodiments are not intended to represent all possible implementations consistent with the present application. They are merely examples of systems consistent with certain aspects of the present application, as detailed in the claims.

[0067] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0068] In the specification and claims of this application and the accompanying drawings, the terms "first," "second," "third," "fourth," etc. are used to distinguish similar or similar objects or entities, and are not necessarily intended to define a particular order or sequence, unless otherwise noted. It should be understood that the terms used in this manner are interchangeable under appropriate circumstances.

[0069] The terms "comprise," "include," and "have," and any variations thereof, are intended to cover but not exclude inclusion; for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0070] The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code that is capable of performing the functionality associated with that element.

[0071] In one embodiment, see the attached Figure 1 , attached Figure 1 One of the structural schematic block diagrams of the AR glasses control box 100 in one embodiment of the present application is shown.

[0072] The AR glasses control box 100 in this embodiment may include a first Type-C interface 110. The first Type-C interface 110 is used to connect to the AR glasses 200 to transmit a video signal of a target communication protocol to the AR glasses 200.

[0073] The target communication protocol refers to a signal communication protocol that can be recognized by the AR glasses 200, such as the DisplayPort (DP) communication protocol, the USB (Universal Serial Bus) communication protocol, etc., but is not limited thereto.

[0074] The AR glasses control box 100 in this embodiment may include a second Type-C interface 120. The second Type-C interface 120 is used to transmit the video signal output by the external device 300 when the external device 300 is connected.

[0075] Based on the type of external device 300, the communication protocol of the video signal of the external device 300 also varies accordingly. For example, if the external device 300 is a DP device, the communication protocol type of the corresponding output video signal is the DP communication protocol. If the external device 300 is a USB 3.0 device, the communication protocol type of the corresponding output video signal is the USB 3.0 communication protocol. If the external device 300 is a USB 2.0 device, the communication protocol type of the corresponding output video signal is the USB 2.0 communication line protocol. In actual applications, the external device 300 can be flexibly selected and is not limited to the above examples.

[0076] The AR glasses control box 100 in this embodiment may include a protocol identification module 130. The protocol identification module 130 is connected to the second Type-C interface 120 and is configured to output a first identification signal when the communication protocol type of the video signal is the target communication protocol.

[0077] The protocol identification module 130 refers to a module, circuit, chip, or the like that is capable of identifying the communication line protocol of the video signal transmitted by the second Type-C interface 120. Depending on the operating principle of the protocol identification module 130, the process of identifying the communication protocol type of the video signal by the protocol identification module 130 may also vary.

[0078] Exemplarily, the detection port (CC interface, i.e., CC1 pin or CC2 pin) of the second Type-C interface 120 is connected to the protocol identification module 130, and the video signal connected to the second Type-C interface 120 is judged through the CC1 / CC2 signal. Specifically, it can be judged through the pull-up resistor on the CC1 pin and / or the pull-down resistor on the CC2 pin to confirm whether the communication protocol type of the video signal is the target communication protocol. If the communication protocol type of the video signal is the target communication protocol, the first identification signal is output.

[0079] Exemplarily, the protocol identification module 130 may be a PD protocol chip (such as a PD AW35615 chip), but is not limited thereto.

[0080] The AR glasses control box 100 in this embodiment may include a main chip 140 . The main chip 140 is configured with a signal identification pin S1 , a first control pin P1 , and a second control pin P2 . The signal identification pin S1 is connected to the protocol identification module 130 .

[0081] The signal identification pin S1 corresponds to the communication protocol of the first identification signal. For example, if the first identification signal is an I2C (Inter-Integrated Circuit) signal, then the signal identification pin S1 can be an I2C pin, but is not limited thereto.

[0082] The first control pin P1 and the second control pin P2 can be any signal transmission pins. For example, the first control pin P1 and the second control pin P2 can both be GPIO (General Purpose Input / Output) pins, but are not limited thereto.

[0083] The AR glasses control box 100 in this embodiment may include a switch module 150. The switch module 150 is configured with a first enable pin En1, a second enable pin En2, a first input pin In1, and a first output pin Out1. The first enable pin En1 is connected to the first control pin P1, the second enable pin En2 is connected to the second control pin P2, the first input pin In1 is connected to the second Type-C interface 120, and the first output pin Out1 is connected to the first Type-C interface 110.

[0084] The main chip 140 in this embodiment can be configured to: when the first identification signal is received, output the first control signal through the first control pin P1 and output the second control signal through the second control pin P2 to control the signal transmission path between the first input pin In1 and the first output pin Out1 to be turned on, so that the video signal of the target communication protocol is transmitted to the AR glasses 200 through the second Type-C interface 120, the signal transmission path between the first input pin In1 and the first output pin Out1, and the first Type-C interface 110.

[0085] The main chip 140 can be an integrated chip that can perform functions such as data processing, calculation and connection. The type of the main chip 140 is not limited in this application. As long as it is a chip / circuit that can realize the above-mentioned functions of this application, it can be used. For example, a gating circuit is configured in the main chip 140. When the first identification signal is connected, the gating circuit is turned on, so that the signal source connected to the gating circuit is connected to the first control pin and the second control pin, and then the corresponding first control signal and the second control signal are output. It can be understood that if the level states of the first control signal and the second control signal are the same, the signal source connected to the first control pin and the second control pin can be the same. If the level states of the first control signal and the second control signal are different, the signal sources connected to the first control pin and the second control pin can be different signal sources, or the signal source connected to one of the control pins is a pin connected by a step-up / step-down circuit, but is not limited to this.

[0086] The switch module 150 in this embodiment may be a controlled switch, which switches on the signal transmission path between the first input pin In1 and the first output pin Out1 when the first enable pin En1 and the second enable pin En2 are connected to a control signal of a preset level state.

[0087] The level states of the first control signal connected to the first enable pin En1 and the second control signal connected to the second enable pin En1 may be different or the same.

[0088] Exemplarily, the first control signal and the second control signal are both high-level control signals. When enabled by the two high-level control signals, the switch module 150 switches on the signal transmission path between the first input pin In1 and the first output pin Out1.

[0089] On the contrary, the first control signal and the second control signal may both be low-level control signals. When enabled by the two low-level control signals, the switch module 150 switches on the signal transmission path between the first input pin In1 and the first output pin Out1.

[0090] In another exemplary embodiment, the first control signal is a control signal in a high-level state, and the second control signal is a control signal in a low-level state. When the switch module 150 is jointly enabled by the high-level first control signal and the low-level second control signal, it turns on the signal transmission path between the first input pin In1 and the first output pin Out1.

[0091] Conversely, the first control signal may be a low-level control signal, and the second control signal may be a high-level control signal. When the low-level first control signal and the high-level second control signal are both enabled, the switch module 150 conducts the signal transmission path between the first input pin In1 and the first output pin Out1. The levels of the first and second control signals can be flexibly set.

[0092] In this embodiment, the communication protocol of the video signal of the external device 300 connected to the second Type-C interface 120 is identified by the protocol identification module 130. When the communication line protocol of the video signal output by the external device 300 is the target communication protocol, the video signal of the target communication protocol can be directly recognized by the AR glasses 200. The main chip 140 outputs the first control signal and the second control signal to jointly control the switch module 150 to turn on the signal transmission line between the first Type-C interface 110 and the second Type-C interface 120, so that the video signal of the target communication protocol can be directly transmitted to the VR glasses. There is no need to transmit the video signal to the main chip 140 for multiple signal protocol conversions, thereby reducing the power consumption of the AR glasses control box 100 and reducing the signal protocol conversion cost.

[0093] In one embodiment, see the attached Figure 2 , attached Figure 2 FIG2 shows a second structural schematic block diagram of the AR glasses control box 100 in an embodiment of the present application.

[0094] The main chip 140 in the AR glasses control box 100 in this embodiment may also be configured with a first signal protocol pin C1 and a second signal protocol pin C2.

[0095] The switch module 150 in the AR glasses control box 100 in this embodiment may also be configured with a second input pin In2 and a second output pin Out2 , and the second output pin Out2 is connected to the first signal protocol pin C1 .

[0096] The protocol identification module 130 in the AR glasses control box 100 in this embodiment can also be configured to output a second identification signal when the communication protocol type of the video signal is the first communication protocol.

[0097] The main chip 140 in the AR glasses control box 100 in this embodiment can also be configured to: when receiving the second identification signal, output a third control signal through the first control pin P1 to control the signal transmission path between the first input pin In1 and the second output pin Out2 to be conductive, and convert the video signal of the first communication protocol into a video signal of the second communication protocol.

[0098] The main chip 140 may be configured with a conversion circuit / module to convert a video signal of the first communication protocol into a video signal of the second communication protocol. For example, the main chip may be configured with an encoding circuit. Upon receiving the second identification signal, the encoding circuit is triggered to decode, re-encode, and transmit the video signal of the first communication protocol connected to the first signal protocol pin C1 to form a video signal of the second communication protocol, and use the transmission requirements of the second signal protocol pin C2.

[0099] In other examples, a digital-to-analog conversion circuit or an analog-to-digital conversion circuit may also be configured in the main chip 140 to implement conversion between different communication protocols. In practical applications, the functional circuits of the main chip 140 may be flexibly configured as needed and are not limited to the above examples.

[0100] The first signal protocol pin C1 corresponds to the first communication protocol, and the second signal protocol pin C2 corresponds to the second communication protocol.

[0101] For example, if the first communication protocol is USB 3.0 and the second communication protocol is HDMI, the first signal protocol pin C1 is a USB 3.0 pin and the second signal pin is an HDMI pin. In practical applications, the configuration can be flexible according to actual needs and is not limited to the above example.

[0102] The second identification signal has a different level from the first identification signal. For example, the first identification signal is a high-level signal and the second identification signal is a low-level signal. Conversely, the first identification signal can also be a low-level signal and the second identification signal can be a high-level signal.

[0103] The third control signal has a different level than the first control signal. Based on this, the switch module 150 enables different signal transmission paths when the third control signal is enabled. For example, the first control signal is a high-level signal, while the third control signal is a low-level signal. The opposite is also possible, where the first control signal is a low-level signal and the third control signal is a high-level signal.

[0104] The AR glasses control box 100 in this embodiment may further include a protocol conversion module 160, which is respectively connected to the second signal protocol pin C2 and the second input pin In2 of the switch module 150. The protocol conversion module 160 is configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol.

[0105] Among them, the protocol conversion module 160 is a module or circuit that can convert the second communication protocol into the target communication protocol. The specific protocol conversion module 160 is selected according to the different types of the second communication protocol and the target communication protocol. For example, taking the second communication protocol as the HDMI communication protocol and the target communication protocol as the DP communication protocol as an example, the protocol conversion module 160 can be an HDMI to DP chip / module. In other examples, the protocol conversion module 160 can also be other, not limited to this.

[0106] The main chip 140 in the AR glasses control box 100 in this embodiment can also be configured to: when receiving the second identification signal, output a fourth control signal through the second control pin P2 to control the signal transmission path between the second input pin In2 and the first output pin Out1 to be turned on, so as to transmit the video signal of the target communication protocol to the AR glasses 200 via the signal transmission path between the second output pin Out2 and the first output pin Out1 and the first Type-C interface 110.

[0107] The fourth control signal has a different level than the second control signal. Consequently, when the fourth control signal is enabled, the switch module 150 switches on a different signal transmission path, enabling the AR glasses 200 to recognize and read the video signal of the first communication protocol after conversion and processing by the main chip 140. For example, the second control signal is a high-level signal, while the fourth control signal is a low-level signal. The reverse is also possible, i.e., the third control signal is a low-level signal, while the fourth control signal is a high-level signal.

[0108] In this embodiment, when the communication protocol type of the video signal connected to the external device 300 is the first communication protocol, the first communication protocol is identified by the protocol identification module 130, so that the main chip 140 confirms that the communication protocol type of the connected video signal is the first communication protocol through the second identification signal. At this time, the third control signal is output through the first control pin P1, and the fourth control signal is output through the second control pin P2. The switch module 150 is driven by the third control signal to turn on the signal transmission path between the first input pin In1 and the second output pin Out2. The main chip 140 can connect to the video signal of the first communication protocol through the first signal protocol pin C1, and convert the video signal of the first communication protocol into a video signal of the second communication protocol, and transmit the video signal of the second communication protocol to the protocol conversion module 160 through the second protocol pin, so that the protocol conversion module 160 converts the video signal of the second communication protocol into a video signal of the target communication protocol that can be recognized and read by the AR glasses 200. At the same time, the main chip 140 outputs a fourth control signal through the second control pin P2 to drive the switch module 150 to turn on the connection between the second input pin In2 and the first output pin Out1, thereby transmitting the video signal of the target communication protocol to the first Type-C interface 110, and then to the AR glasses 200.

[0109] Based on this, the AR glasses control box 100 in this embodiment can also be connected to an external device 300 that outputs a video signal of the first communication line protocol, thereby improving the compatibility of the AR glasses control box 100.

[0110] In one embodiment, see the attached Figure 3 , attached Figure 3 FIG2 shows a schematic structural block diagram of the switch module 150 in an embodiment of the present application.

[0111] The switch module 150 in this embodiment may include a first controlled switch 151. The first controlled switch 151 is configured with a first enable pin En1, a first input pin In1, a second output pin Out2, and a third output pin Out3.

[0112] The switch module 150 in this embodiment may include a second controlled switch 152. The second controlled switch 152 is configured with a second enable pin En2, a first output pin Out1, a second input pin In2, and a third input pin In3, wherein the third input pin In3 is connected to the third output pin Out3.

[0113] The types of the first controlled switch 151 and the second controlled switch 152 can be flexibly selected according to actual needs. For example, the first controlled switch 151 can be a high-speed switch, and the second controlled switch 152 can be a multiplexing switch (such as DPMUX), but the present invention is not limited thereto.

[0114] In this embodiment, by inputting control signals of different level states into the first enable pin En1 of the first controlled switch 151, it is possible to select a signal transmission path between the first input pin In1 and the second output pin Out2 or a signal transmission path between the first input pin In1 and the third output pin Out3, thereby realizing the selection of different signal transmission paths for transmitting video signals of different communication protocols.

[0115] Accordingly, by inputting control signals of different level states to the second enable pin En2 of the second controlled switch 152, the signal transmission path between the second input pin In2 and the first output pin Out1 or the signal transmission path between the third input pin In3 and the first output pin Out1 can be selected to be turned on, thereby realizing the transmission of video signals of target communication protocols from different sources to the first Type-C interface 110.

[0116] The type of the first communication protocol can be selected and set according to actual needs. For example, in one embodiment, the first communication protocol includes a USB 3.0 communication protocol.

[0117] In this embodiment, the first communication protocol includes the USB 3.0 communication protocol, that is, the AR glasses control box 100 in this embodiment can adapt to the external device 300 of the USB 3.0 communication protocol.

[0118] In one embodiment, see the attached Figure 4 , attached Figure 4 The third structural schematic block diagram of the AR glasses control box 100 in one embodiment of the present application is shown.

[0119] The main chip 140 in the AR glasses control box 100 in this embodiment may also be configured with a second signal protocol pin C2 and a third signal protocol pin C3, and the third signal protocol pin C3 is connected to the second Type-C interface 120.

[0120] The switch module 150 in the AR glasses control box 100 in this embodiment may also be configured with a second input pin In2.

[0121] The main chip 140 in the AR glasses control box 100 in this embodiment can also be configured to: when a video signal of the third communication protocol is connected via the third signal protocol pin C3 and the second Type-C interface 120, convert the video signal of the third communication protocol into a video signal of the second communication protocol.

[0122] Among them, the second signal protocol pin C2 is consistent with the second signal protocol pin C2 in the above embodiment, and will not be repeated here.

[0123] The third signal protocol pin C3 corresponds to the third communication protocol. For example, if the third communication protocol is the USB 2.0 communication protocol, the third signal protocol pin C3 is also a USB 2.0 pin, but the present invention is not limited thereto.

[0124] The main chip 140 may be configured with a conversion circuit / module to convert a video signal of the third communication protocol into a video signal of the second communication protocol. For example, the main chip 140 may be configured with an encoding circuit. Upon receiving a video signal of the third communication protocol connected to the third signal protocol pin C3, the encoding circuit is triggered to decode, re-encode, and transmit the video signal of the third communication protocol connected to the third signal protocol pin C3 to form a video signal of the second communication line protocol, and use the transmission requirements of the second signal protocol pin C2.

[0125] In other examples, a digital-to-analog conversion circuit or an analog-to-digital conversion circuit may also be configured in the main chip 140 to implement conversion between different communication protocols. In practical applications, the functional circuits of the main chip 140 may be flexibly configured as needed and are not limited to the above examples.

[0126] The AR glasses control box 100 in this embodiment may further include a protocol conversion module 160. The protocol conversion module 160 is connected to the second signal protocol pin C2 and the second input pin In2 of the switch module 150, respectively. The protocol conversion module 160 is configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol.

[0127] The main chip 140 in the AR glasses control box 100 in this embodiment can also be configured to: when receiving a video signal of a third communication protocol, output a fourth control signal through the second control pin P2 to control the conduction of the signal transmission path between the second input pin In2 and the first output pin Out1, so as to transmit the video signal of the target communication protocol to the AR glasses 200 via the signal transmission path between the second input pin In2 and the first output pin Out1 and the first Type-C interface 110.

[0128] In this embodiment, the main chip 140 can directly identify the communication protocol of a video signal received through the third signal protocol pin C3. When the main chip 140 receives a video signal of the third communication protocol through the third signal protocol pin C3, it converts the video signal of the third communication protocol into a video signal of the second communication protocol. The video signal of the second communication protocol is then transmitted to the protocol conversion module 160 through the second signal protocol pin C2, causing the protocol conversion module 160 to convert the video signal of the second communication protocol into a video signal of the target communication protocol. At the same time, the main chip 140 outputs a fourth control signal through the second control pin P2, driving the switch module 150 to open the signal transmission path between the second input pin In2 and the first output pin Out1. This allows the video signal of the target communication protocol converted by the protocol conversion module 160 to be transmitted to the AR glasses 200 via the switch module 150 and the first Type-C port 110. Based on this, the AR glasses control box 100 in this embodiment is also compatible with external devices 300 that output video signals of the third communication protocol, thereby improving the compatibility of the AR glasses control box 100.

[0129] The third communication protocol can be flexibly selected and set based on actual needs. For example, in one embodiment, the third communication protocol includes the USB 2.0 communication protocol.

[0130] In this embodiment, the third communication protocol includes the USB 2.0 communication protocol, that is, the AR glasses control box 100 in this embodiment can be connected to the external device 300 that outputs the video signal of the USB 2.0 communication protocol.

[0131] In one embodiment, see the attached Figure 5 , attached Figure 5 FIG4 shows a fourth structural schematic block diagram of the AR glasses control box 100 in one embodiment of the present application.

[0132] The main chip 140 in the AR glasses control box 100 in this embodiment may also be configured with a second signal protocol pin C2 and a communication pin L1. The communication pin L1 is used to connect to the communication module 400 to access the video signal through the communication module 400.

[0133] The number of communication pins L1 can be flexibly set based on the connected communication module 400. For example, the number of communication pins L1 can be three, including SDIO (Secure Digital Input Output) pins, PCM (Pulse Code Modulation) pins, and UART (Universal Asynchronous Receiver / Transmitter) pins. The communication module 400 connected via the SDIO pins, PCM pins, and UART pins can be a WiFi module, such as the FCS851U chip. This is not limiting.

[0134] The switch module 150 in the AR glasses control box 100 in this embodiment may also be configured with a second input pin In2.

[0135] The main chip 140 in the AR glasses control box 100 in this embodiment can also be configured to: when a video signal of a preset communication protocol is connected via the communication module 400, convert the video signal of the preset communication protocol into a video signal of a second communication protocol.

[0136] The main chip 140 may be configured with a conversion circuit / module to convert a video signal of a first communication protocol into a video signal of a second communication protocol. For example, the main chip may be configured with an encoding circuit. When communication pin L1 receives a video signal of a preset communication protocol output by communication module 400, the encoding circuit is triggered to decode, re-encode, and transmit the video signal of the preset communication protocol to form a video signal of the second communication line protocol, and transmit the video signal using the second signal protocol pin C2.

[0137] In other examples, a digital-to-analog conversion circuit or an analog-to-digital conversion circuit may also be configured in the main chip 140 to implement conversion between different communication protocols. In practical applications, the functional circuits of the main chip 140 may be flexibly configured as needed and are not limited to the above examples.

[0138] The AR glasses control box 100 in this embodiment may further include a protocol conversion module 160. The protocol conversion module 160 is connected to the second signal protocol pin C2 and the second input pin In2 of the switch module 150, respectively. The protocol conversion module 160 is configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol.

[0139] The main chip 140 in the AR glasses control box 100 in this embodiment can also be configured to: when receiving a video signal of a preset communication protocol, output a fourth control signal through the second control pin P2 to control the conduction of the signal transmission path between the second input pin In2 and the first output pin Out1, so as to transmit the video signal of the target communication protocol to the AR glasses 200 via the signal transmission path between the second input pin In2 and the first output pin Out1 and the first Type-C interface 110.

[0140] The AR glasses control box 100 in this embodiment can also be connected to an external communication module 400 via communication pin L1, so that the communication module 400 can receive an external video signal of a preset communication protocol in real time. At this time, the main chip 140 converts the video signal of the preset communication protocol into a video signal of a second communication protocol and transmits the video signal of the second communication protocol to the protocol conversion module 160 via the second signal protocol pin C2, so that the protocol conversion module 160 converts the video signal of the second communication protocol into a video signal of the target communication protocol. Simultaneously, the main chip 140 outputs a fourth control signal via the second control pin P2, driving the switch module 150 to open the signal transmission path between the second input pin In2 and the first output pin Out1. This allows the video signal of the target communication protocol converted by the protocol conversion module 160 to be transmitted to the AR glasses 200 via the switch module 150 and the first Type-C port 110. Based on this, the AR glasses control box 100 in this embodiment can also transmit the video signal received via the communication module 400 to the AR glasses 200 in real time, improving the applicability and flexibility of the AR glasses control box 100.

[0141] In one embodiment, see the attached Figure 6 , attached Figure 6 FIG5 shows a fifth structural schematic block diagram of the AR glasses control box 100 in one embodiment of the present application.

[0142] The main chip 140 in the AR glasses control box 100 in this embodiment may also be configured with a memory pin L2 , which is connected to the communication pin L1 for accessing the storage module 500 .

[0143] The number of memory pins L2 can be flexibly set according to the type or number of connected storage modules 500. For example, the memory pins L2 can be EBI (External Bus Interface) pins and EMMC (Embedded MultiMediaCard Physical Interface) pins, respectively used to connect to different storage modules 500.

[0144] The storage module 500 is used to store the video signal of the preset communication protocol accessed by the communication module 400.

[0145] The main chip 140 in the AR glasses control box 100 in this embodiment can also be configured to: when the storage module 500 stores a video signal of a preset communication protocol, convert the video signal of the preset communication protocol into a video signal of a second communication protocol, and output a fourth control signal through the second control pin P2 to control the conduction of the signal transmission path between the second input pin In2 and the first output pin Out1, so as to transmit the video signal of the target communication protocol to the AR glasses 200 via the signal transmission path between the second input pin In2 and the first output pin Out1 and the first Type-C interface 110.

[0146] In this embodiment, an external storage module 500 is connected via the memory pin L2 to store the video signal received by the communication module 400 in the storage module 500, thereby improving the stability of video signal conversion and transmission. The main chip 140 then converts the video signal of the preset communication protocol stored in the storage module 500 into a video signal of the second communication line protocol, and simultaneously transmits the video signal of the second communication protocol to the protocol conversion module 160 via the second signal protocol pin C2, so that the protocol conversion module 160 converts the video signal of the second communication protocol into a video signal of the target communication protocol. At the same time, the main chip 140 outputs a fourth control signal via the second control pin P2, driving the switch module 150 to conduct the signal transmission path between the second input pin In2 and the first output pin Out1, so that the video signal of the target communication protocol converted by the protocol conversion module 160 can be transmitted to the AR glasses 200 via the switch module 150 and the first Type-C interface 110.

[0147] Based on this, the AR glasses control box 100 in this embodiment can also stably transmit the video signal connected to the storage module 500 to the AR glasses 200, thereby improving the stability and applicability of the signal transmission of the AR glasses control box 100.

[0148] The second communication protocol is not unique and can be flexibly configured according to actual use. For example, in one embodiment, the second communication protocol includes an HDMI communication protocol.

[0149] In this embodiment, the second communication protocol includes the HDMI communication protocol, and the corresponding second signal protocol pin C2 is an HDMI protocol pin, which can ensure low-latency video transmission, meet the real-time interaction requirements of the AR glasses 200, and ensure the transmission quality of the video signal.

[0150] The target communication protocol may be any signal communication protocol that can be directly recognized and read by the AR glasses 200. For example, in one embodiment, the target communication protocol includes the DP communication protocol.

[0151] In this embodiment, the target communication protocol includes the DP communication protocol, so that the AR glasses control box 100 can adapt to the AR glasses 200 that can only recognize the DP communication protocol.

[0152] In one embodiment, see the attached Figure 7 , attached Figure 7 FIG6 shows a sixth structural schematic block diagram of the AR glasses control box 100 in one embodiment of the present application.

[0153] The AR glasses control box 100 in this embodiment may further include a DP REDRIVER chip 170. The DP REDRIVER chip 170 is connected to the first output pin Out1 of the switch module 150 and the first Type-C interface 110. The DP REDRIVER chip 170 is configured to perform signal enhancement processing on the video signal of the target communication protocol and transmit it to the AR glasses 200 via the first Type-C interface 110.

[0154] Among them, the DP REDRIVER chip 170 is a repeater chip for the DisplayPort (DP) interface, which can amplify and reshape the video signal of the target communication protocol to compensate for the signal attenuation and distortion that may occur during long-distance transmission or after passing through multiple connected devices, ensuring the signal integrity of the video signal during transmission.

[0155] In this embodiment, a DP REDRIVER chip 170 is added between the first Type-C interface 110 and the first output pin Out1 of the switch module 150, which can improve the quality of the video signal transmitted from the AR glasses control box 100 to the AR glasses 200 and ensure the accuracy of displaying the video signal received by the AR glasses 200.

[0156] In one embodiment, the present application also provides an AR glasses split machine, including AR glasses and the AR glasses control box in any of the above embodiments.

[0157] In this embodiment, the communication protocol of the video signal of the external device connected to the second Type-C interface is identified by the protocol identification module of the AR glasses control box. When the communication line protocol of the video signal output by the external device is the target communication protocol, the video signal of the target communication protocol can be directly recognized by the AR glasses. The main chip outputs the first control signal and the second control signal to jointly control the switch module to turn on the signal transmission line between the first Type-C interface and the second Type-C interface, so that the video signal of the target communication protocol can be directly transmitted to the VR glasses. There is no need to transmit the video signal to the main chip for multiple signal protocol conversions, which reduces the power consumption of the AR glasses control box and reduces the signal protocol conversion cost.

[0158] In one embodiment, the present application also provides an AR glasses control system, including an external device and the AR glasses split machine in the above embodiment; wherein the external device includes a DP device.

[0159] In this embodiment, the communication protocol of the video signal of the external device connected to the second Type-C interface is identified by the protocol identification module of the AR glasses control box in the AR glasses split machine. When the external device is a DP device, the communication line protocol of the video signal output by the DP device is the target communication protocol. At this time, the video signal of the target communication protocol can be directly recognized by the AR glasses. The main chip outputs the first control signal and the second control signal to jointly control the switch module to turn on the signal transmission line between the first Type-C interface and the second Type-C interface. The video signal of the target communication protocol can be directly transmitted to the VR glasses without transmitting the video signal to the main chip for multiple signal protocol conversions, thereby reducing the power consumption of the AR glasses control box and reducing the signal protocol conversion cost.

[0160] In one embodiment, the external device further includes a USB 3.0 device or a USB 2.0 device.

[0161] The external device in the AR glasses control system in this embodiment can also be a USB3.0 device or a USB2.0 device, so that the compatibility and applicability of the AR glasses control system are stronger.

[0162] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0163] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An AR glasses control box, characterized in that: The AR glasses control box includes: A first Type-C interface, used to connect to the AR glasses to transmit a video signal of a target communication protocol to the AR glasses; The second Type-C interface is used to transmit the video signal output by the external device when connected to the external device; A protocol identification module connected to the second Type-C interface; A main chip is configured with a signal identification pin, a first control pin, and a second control pin, wherein the signal identification pin is connected to the protocol identification module; A switch module is configured with a first enable pin, a second enable pin, a first input pin, and a first output pin, wherein the first enable pin is connected to the first control pin, the second enable pin is connected to the second control pin, the first input pin is connected to the second Type-C interface, and the first output pin is connected to the first Type-C interface; Wherein, the protocol identification module is configured to: output a first identification signal when the communication protocol type of the video signal is the target communication protocol; The main chip is configured to: when the first identification signal is received, output a first control signal through the first control pin and output a second control signal through the second control pin, so as to control the signal transmission path between the first input pin and the first output pin to be conductive, so that the video signal of the target communication protocol is transmitted to the AR glasses through the second Type-C interface, the signal transmission path between the first input pin and the first output pin, and the first Type-C interface.

2. The AR glasses control box according to claim 1, characterized in that: The main chip is further configured with a first signal protocol pin and a second signal protocol pin; The switch module is further configured with a second input pin and a second output pin, and the second output pin is connected to the first signal protocol pin; The protocol identification module is further configured to: output a second identification signal when the communication protocol type of the video signal is the first communication protocol; The main chip is further configured to: upon receiving the second identification signal, output a third control signal through the first control pin to control the signal transmission path between the first input pin and the second output pin to be conductive, and convert the video signal of the first communication protocol into a video signal of the second communication protocol; The AR glasses control box also includes: a protocol conversion module, connected to the second signal protocol pin and the second input pin of the switch module respectively, the protocol conversion module being configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol; The main chip is also configured to: upon receiving the second identification signal, output a fourth control signal through the second control pin to control the conduction of the signal transmission path between the second input pin and the first output pin, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second output pin and the first output pin and the first Type-C interface.

3. The AR glasses control box according to claim 2, characterized in that: The switch module includes: a first controlled switch configured with the first enable pin, the first input pin, the second output pin, and a third output pin; The second controlled switch is configured with the second enable pin, the first output pin, the second input pin and a third input pin, wherein the third input pin is connected to the third output pin.

4. The AR glasses control box according to claim 2, characterized in that: The first communication protocol includes the USB 3.0 communication protocol.

5. The AR glasses control box according to claim 1, characterized in that: The main chip is further configured with a second signal protocol pin and a third signal protocol pin, and the third signal protocol pin is connected to the second Type-C interface; The switch module is further configured with a second input pin; The main chip is further configured to: when a video signal of a third communication protocol is received via the third signal protocol pin and the second Type-C interface, convert the video signal of the third communication protocol into a video signal of the second communication protocol; The AR glasses control box also includes: a protocol conversion module, connected to the second signal protocol pin and the second input pin of the switch module respectively, the protocol conversion module being configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol; The main chip is also configured to: when receiving the video signal of the third communication protocol, output a fourth control signal through the second control pin to control the signal transmission path between the second input pin and the first output pin to be conductive, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second input pin and the first output pin and the first Type-C interface.

6. The AR glasses control box according to claim 5, characterized in that: The third communication protocol includes the USB 2.0 communication protocol.

7. The AR glasses control box according to claim 1, characterized in that: The main chip is further configured with a second signal protocol pin and a communication pin, wherein the communication pin is used to connect to a communication module to access a video signal through the communication module; The switch module is further configured with a second input pin; The main chip is further configured to: when a video signal of a preset communication protocol is received via the communication module, convert the video signal of the preset communication protocol into a video signal of a second communication protocol; The AR glasses control box also includes: a protocol conversion module, connected to the second signal protocol pin and the second input pin of the switch module respectively, the protocol conversion module being configured to convert the video signal of the second communication protocol into a video signal of the target communication protocol; The main chip is also configured to: when receiving the video signal of the preset communication protocol, output a fourth control signal through the second control pin to control the signal transmission path between the second input pin and the first output pin to be turned on, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second input pin and the first output pin and the first Type-C interface.

8. The AR glasses control box according to claim 7, characterized in that: The main chip is further configured with a memory pin, which is connected to the communication pin for accessing the storage module; The storage module is used to store the video signal of the preset communication protocol accessed by the communication module; The main chip is also configured to: when the storage module stores the video signal of the preset communication protocol, convert the video signal of the preset communication protocol into a video signal of the second communication protocol, and output a fourth control signal through the second control pin to control the signal transmission path between the second input pin and the first output pin to be conductive, so as to transmit the video signal of the target communication protocol to the AR glasses via the signal transmission path between the second input pin and the first output pin and the first Type-C interface.

9. The AR glasses control box according to any one of claims 2, 4, 7-8, characterized in that: The second communication protocol includes an HDMI communication protocol; The target communication protocol includes the DP communication protocol.

10. The AR glasses control box according to any one of claims 1, 2, 4, 7-8, characterized in that: The AR glasses control box also includes: A DP REDRIVER chip is connected to the first output pin of the switch module and the first Type-C interface. The DP REDRIVER chip is configured to perform signal enhancement processing on the video signal of the target communication protocol and transmit it to the AR glasses through the first Type-C interface.

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