Headphone recognition module and system

Abstract

The present application discloses a headphone identification module and system, and the headphone identification module of the present application includes a headphone access port, a first voltage pull-down module, a second voltage pull-down module, a mode control module and a conduction module. The first voltage pull-down module is used to pull down the detection voltage of the headphone access port; the second voltage pull-down module is used to pull down the detection voltage of the headphone access port; the mode control module is used to control the working mode of the headphone according to the input instruction; the conduction module is connected to the first voltage pull-down module, the second voltage pull-down module and the headphone access port, and is used to connect the first voltage pull-down module when the working mode is the first mode, and connect the second voltage pull-down module when the working mode is the second mode. The present application sets the second voltage pull-down module so that computers, mobile phones and other devices can still recognize the insertion of headphones in the headphone mute mode, thereby improving the accuracy of headphone recognition, and at the same time, can effectively improve the user experience.

Description

Technical Field

[0001] The present application relates to the field of earphone recognition, and in particular to an earphone recognition module and system. Background Art

[0002] With the development of society, most digital product manufacturers have cancelled the 3.5mm interface. Therefore, when users use 3.5mm headphones to connect mobile phones, laptops and other digital products, they need to use an adapter cable for conversion.

[0003] However, when connecting via an adapter cable, if the headphone's inline control has a mute control function, the digital product may not be able to recognize that the headphone is inserted. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an earphone recognition module, which can still recognize the insertion of earphones in a silent state, thereby improving the accuracy of recognition.

[0005] The present application also proposes an earphone recognition system having the above-mentioned earphone recognition module.

[0006] The headset identification module according to the first aspect of the present application embodiment, the headset access port is used to output a detection voltage when the headset is connected;

[0007] A first voltage lowering module, used for lowering the detection voltage of the headphone access port;

[0008] A second voltage lowering module, used for lowering the detection voltage of the headphone access port;

[0009] A mode control module, used to control the working mode of the headset according to the input instruction; wherein the working mode includes a first mode and a second mode;

[0010] A conduction module, the conduction module is connected to the first voltage pull-down module, the second voltage pull-down module, and the headphone access port, and is used to connect the first voltage pull-down module when the working mode is the first mode, and connect the second voltage pull-down module when the working mode is the second mode.

[0011] The headphone recognition module according to the embodiment of the present application has at least the following beneficial effects: by setting the conduction module, the first voltage pull-down module or the second voltage pull-down module can be turned on according to different working modes, so that the detection voltage of the headphone input port is reduced, so that computers, mobile phones and other devices can still recognize the insertion of headphones in the headphone mute mode, thereby improving the accuracy of headphone recognition and effectively improving the user experience.

[0012] According to some embodiments of the present application, the first voltage pull-down module includes: a first resistor, one end of which is connected to the conduction module; a second resistor, one end of which is connected to the other end of the first resistor; a third resistor, one end of which is connected to the other end of the second resistor; a fourth resistor, one end of which is connected to the other end of the third resistor; a transistor, the base of which is connected to the other end of the fourth resistor, the collector of which is connected to the conduction module, and the emitter of which is grounded.

[0013] According to some embodiments of the present application, the second voltage lowering module includes a charging circuit, and the charging circuit is used to lower the detection voltage of the headphone access port.

[0014] According to some embodiments of the present application, the charging circuit includes: a first resistor, one end of which is connected to the conduction module; a first capacitor, one end of which is connected to the other end of the first resistor, and the other end of the first capacitor is grounded.

[0015] According to some embodiments of the present application, the mode control module is a MKS22D12A chip.

[0016] According to some embodiments of the present application, the conduction module includes: a PMOS tube, the source of the PMOS tube is connected to the first voltage pull-down module and the second voltage pull-down module; a parasitic diode, the anode of the parasitic diode is connected to the drain of the PMOS tube, and the cathode of the parasitic diode is connected to the source of the PMOS tube.

[0017] According to the second aspect of the present application, the headset recognition system includes:

[0018] The earphone recognition module as described in the embodiment of the first aspect of the present application;

[0019] A processor is communicatively connected to the headset recognition module, and is used to obtain and control the output of the audio signal according to the detection voltage.

[0020] According to the earphone recognition system of the embodiment of the present application, there are at least the following beneficial effects: by setting the above-mentioned earphone recognition module and processor, the output of the audio signal can be controlled according to the detection voltage, so that the earphone can still be recognized and transmit the audio signal in the silent mode, thereby improving the recognition accuracy and the customer's usage experience.

[0021] According to some embodiments of the present application, when the detection voltage is pulled low, the processor controls the audio signal to be output from the earphone; when the detection voltage is not pulled low, the processor controls the audio signal to be output from the processor.

[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of a headset recognition module according to an embodiment of the present application;

[0025] Figure 2 This is a circuit diagram of the earphone recognition module according to an embodiment of the present application;

[0026] Figure 3 This is a module diagram of the earphone recognition system according to an embodiment of the present application.

[0027] Reference numerals:

[0028] The headset access port 100 , the first voltage lowering module 200 , the second voltage lowering module 300 , the mode control module 400 , the conduction module 500 , the headset identification module 600 , and the processor 700 . DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0033] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] Reference below Figure 1 The earphone recognition module 600 according to the embodiment of the present application is described.

[0035] As shown in FIG. 1 , the headset recognition module 600 according to the embodiment of the present application includes a headset access port 100 , a first voltage lowering module 200 , a second voltage lowering module 300 , a mode control module 400 and a conduction module 500 .

[0036] The headphone access port 100 is used to output a detection voltage when the headphone is connected; the first voltage lowering module 200 is used to lower the detection voltage of the headphone access port 100; the second voltage lowering module 300 is used to lower the detection voltage of the headphone access port 100; the mode control module 400 is used to control the working mode of the headphone according to the input instruction; wherein the working mode includes a first mode and a second mode; the conduction module 500 is connected to the first voltage lowering module 200, the second voltage lowering module 300, and the headphone access port 100, and is used to connect the first voltage lowering module 200 when the working mode is the first mode, and connect the second voltage lowering module 300 when the working mode is the second mode.

[0037] Specifically, when the earphone is inserted into the earphone access port 100, the earphone access port 100 will continuously output the detection voltage. The user selects the working mode of the earphone according to his / her usage requirements, wherein the working mode includes a first mode and a second mode. The first mode is a non-silent mode, and the second mode is a silent mode, that is, when the user selects the first mode, the user can obtain an audio signal from the earphone; and when the user selects the second mode, the earphone is in a silent state, and the user will not obtain an audio signal from the earphone. The mode control module 400 can control the switching of the working mode according to the user's selection, thereby improving the flexibility of control.

[0038] When the user selects the first mode, i.e., the non-silent mode, the conduction module 500 will connect to the first voltage lowering module 200 to lower the test voltage; when the user selects the second mode, i.e., the silent mode, the conduction module 500 will connect to the second voltage lowering module 300 to lower the test voltage. Since the test voltage is lowered, computers, mobile phones and other devices will recognize the presence of the headphones, thereby ensuring that the audio signal can be transmitted from the headphones to the outside, avoiding the situation where the device cannot recognize the insertion of the headphones when the headphones are in silent mode.

[0039] According to the headphone recognition module 600 of the embodiment of the present application, a conduction module 500 is set to connect the first voltage pull-down module 200 or the second voltage pull-down module 300 according to different working modes, so that the detection voltage of the headphone input port is reduced, so that computers, mobile phones and other devices can still recognize the insertion of headphones in the headphone mute mode, thereby improving the accuracy of headphone recognition and effectively improving the user experience.

[0040] In some specific embodiments of the present application, Figure 1 and Figure 2 As shown, the first voltage pull-down module 200 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a transistor Q1, one end of the first resistor R1 is connected to the conduction module 500; one end of the second resistor R2 is connected to the other end of the first resistor R1; one end of the third resistor R3 is connected to the other end of the second resistor R2; one end of the fourth resistor R4 is connected to the other end of the third resistor R3; the base of the transistor Q1 is connected to the other end of the fourth resistor R4, the collector of the transistor Q1 is connected to the conduction module 500, and the emitter of the transistor Q1 is grounded.

[0041] Specifically, when the working mode is the first mode, the conduction module 500 controls the first voltage lowering module 200 to be connected to the loop, and the current is transmitted from the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 to the transistor Q1. The base of the transistor Q1 is at a high level, and the transistor Q1 is turned on, so that the conduction module 500 is turned on, so that the microphone of the headset is connected. Due to the connection of the microphone, the detection voltage will be pulled down, so that the computer, mobile phone and other devices can recognize the insertion of the headset.

[0042] In some specific embodiments of the present application, Figure 1 and Figure 2As shown, the second voltage lowering module 300 includes a charging circuit, and the charging circuit is used to lower the detection voltage of the headphone access port 100. Specifically, when the conduction module 500 controls the second voltage lowering module 300 to access the loop, the charging circuit will charge, which will cause the detection voltage to be lowered, so that the computer, mobile phone and other devices can recognize the insertion of the headphone. Therefore, by setting the second voltage lowering module 300, the computer, mobile phone and other devices can still recognize the insertion of the headphone when the headphone is in silent mode.

[0043] In some specific embodiments of the present application, Figure 1 and Figure 2 As shown, the charging circuit includes a first resistor R1 and a first capacitor C1, one end of the first resistor R1 is connected to the conduction module 500; one end of the first capacitor C1 is connected to the other end of the first resistor R1, and the other end of the first capacitor C1 is grounded.

[0044] Specifically, the resistance of the first resistor R1 is 22kΩ, and the capacitance of the first capacitor C1 is 4.7μF. When the detection voltage is input, the first capacitor C1 will start to charge, so that the detection voltage is slowly pulled down, so that mobile phones, computers and other devices can still recognize the insertion of the earphones and output the audio signal from the earphones. In the prior art, when the earphones are connected to the device using an adapter cable, when the working mode of the earphones is in silent mode, the microphone of the earphones cannot be connected to the circuit, so the mobile phone, computer and other devices cannot detect the insertion of the earphones; and the present application sets a charging circuit composed of the first resistor R1 and the first capacitor C1, which will pull down the detection voltage, so that mobile phones, computers and other devices can detect the insertion of the earphones and still output the audio signal from the earphones. When switching to silent mode, users can still often receive audio signals through the earphones, which improves the user experience. It can be understood that the parameters of the first resistor R1 and the first capacitor C1 can be adjusted according to actual needs.

[0045] In some specific embodiments of the present application, Figure 1 and Figure 2 As shown, the mode control module 400 is a MKS22D12A chip. Specifically, when pin 1 and pin 2 of the mode control module 400 are connected, and pin 4 and pin 5 are connected, the headset is in a first mode, i.e., a non-silent mode, and the microphone of the headset is connected to the circuit to pull down the detection voltage, so that the device can recognize the insertion of the headset. When pin 2 and pin 3 of the mode control module 400 are connected, and pin 5 and pin 6 are connected, the headset is in a second mode, i.e., a silent mode, and the microphone of the headset will not be connected to the circuit, but due to the setting of the first resistor R1 and the first capacitor C1, the detection voltage can be pulled down, so that the device can still recognize the insertion of the headset, thereby improving the accuracy of headset recognition.

[0046] In some specific embodiments of the present application, Figure 1 and Figure 2 As shown, the conduction module 500 includes a PMOS tube Q2Q1 and a parasitic diode D1, the source of the PMOS tube Q2Q1 is connected to the first voltage pull-down module 200 and the second voltage pull-down module 300; the anode of the parasitic diode D1 is connected to the drain of the PMOS tube Q2Q1, and the cathode of the parasitic diode D1 is connected to the source of the PMOS tube Q2Q1. When a large instantaneous reverse current is generated in the circuit, the parasitic diode D1 can be provided to protect the PMOS tube Q2Q1 and prevent the PMOS tube Q2Q1 from being broken down by the current.

[0047] In some embodiments, the present application also proposes a headset recognition system, such as Figures 1 to 3 As shown, the earphone recognition system includes the earphone recognition module 600 and the processor 700 in any of the above embodiments of the present application. The processor 700 is communicatively connected with the earphone recognition module 600 to obtain and control the output of the audio signal according to the detection voltage.

[0048] Specifically, the processor 700 is connected to the headset identification module 600 for communication, and is used to obtain the detection voltage and control the output of the audio signal according to the detection voltage. When the headset is in the first mode, the conduction module 500 will connect the first voltage pull-down module 200. Since the microphone of the headset will be connected to the circuit, the detection voltage will be pulled down, and the processor 700 will obtain the pulled-down detection voltage, thereby controlling the audio signal to be output from the headset. When the headset is in the second mode, the conduction module 500 will connect the second voltage pull-down module 300. Since the first resistor R1 and the first capacitor C1 in the first voltage pull-down module 200 will be charged, the detection voltage will be pulled down, so that the processor 700 will obtain the pulled-down detection voltage and output the audio signal from the headset. When the headset is not inserted, the detection voltage will not change, so the processor 700 will control the audio signal to be directly output by the microphone of the processor 700.

[0049] In some specific embodiments of the present application, when the detection voltage is pulled low, the processor 700 controls the audio signal to be output from the earphone; when the detection voltage is not pulled low, the processor 700 controls the audio signal to be output from the processor 700. It is understandable that the microphone can be a computer, a mobile phone, or other device. When the processor 700 detects that the detection voltage is pulled low, the audio signal is controlled to be output from the earphone; when the processor 700 detects that the detection voltage is not pulled low, the audio signal is controlled to be output from the microphone of the computer, mobile phone, or other device.

[0050] Reference below Figures 1 to 3 The earphone recognition system according to the embodiment of the present application is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation to the present application.

[0051] like Figures 1 to 3 As shown, when a TYPE-C to 3.5mm adapter is used to connect the device and the earphone, when the earphone is inserted into the earphone access port 100, the earphone access port 100 will output a detection voltage. The user can control the working mode of the earphone through the mode control module 400. The processor 700 can obtain the detection voltage and control the output of the audio signal according to whether the detection voltage is pulled low. When the detection voltage is pulled low, the processor 700 controls the audio signal to be output from the earphone; when the detection signal is not pulled low, the processor 700 controls the audio signal to be output from the microphone of the processor 700. Among them, the processor 700 can be a device such as a computer or a mobile phone.

[0052] When pin 1 and pin 2 of the mode control module 400 are connected, and pin 4 and pin 5 are connected, the headset is in the first mode, i.e., the non-mute mode, and the conduction module 500 turns on the first voltage lowering module 200. The current is transmitted to the transistor Q1 by the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4. The base of the transistor Q1 is at a high level, and the transistor Q1 is turned on, thereby turning on the conduction module 500, so that the microphone of the headset is connected. Since the connection of the headset microphone will pull down the detection voltage, the processor 700 can recognize the insertion of the headset and control the audio signal to be output from the microphone of the headset.

[0053] When pin 2 and pin 3 of the mode control module 400 are connected, and pin 5 and pin 6 are connected, the headset is in the second mode, i.e., the mute mode, and the microphone of the headset cannot be connected to the circuit, so the conduction module 500 turns on the second voltage lowering module 300. When the detection voltage is input, the first resistor R1 and the first capacitor C1 will start to charge, so that the detection voltage is slowly pulled down, so that the processor 700 can still recognize the insertion of the headset and control the output of the audio signal from the microphone of the headset.

[0054] According to the headphone recognition system of the embodiment of the present application, by such a configuration, at least some of the following effects can be achieved. By setting the conduction module 500, the first voltage pull-down module 200 or the second voltage pull-down module 300 can be connected according to different working modes, so that the detection voltage of the headphone input port is reduced, so that the processor 700 can still recognize the insertion of the headphone in the headphone mute mode, thereby improving the accuracy of headphone recognition and effectively improving the user experience.

[0055] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. The earphone recognition module is characterized by: include: Headphone access port, used to output detection voltage when headphones are connected; A first voltage lowering module, used for lowering the detection voltage of the headphone access port; A second voltage lowering module, used for lowering the detection voltage of the headphone access port; A mode control module, configured to control the working mode of the headset according to an input instruction; wherein the working mode includes a first mode and a second mode, the first mode is a non-mute mode, and the second mode is a mute mode. When the user selects the first mode, the user can obtain an audio signal from the headset; when the user selects the second mode, the headset is in a mute state, and the user does not obtain an audio signal from the headset; a conduction module, the conduction module is connected to the first voltage pull-down module, the second voltage pull-down module, and the headphone access port, and is used to connect the first voltage pull-down module when the working mode is the first mode, and to connect the second voltage pull-down module when the working mode is the second mode, the first voltage pull-down module comprising: a first resistor, one end of the first resistor is connected to the conduction module; a second resistor, one end of the second resistor is connected to the other end of the first resistor; a third resistor, one end of the third resistor is connected to the other end of the second resistor; a fourth resistor, one end of the fourth resistor is connected to the other end of the third resistor; a transistor, the base of the transistor is connected to the other end of the fourth resistor, the collector of the transistor is connected to the conduction module, and the emitter of the transistor is grounded; the second voltage pull-down module comprises a charging circuit, the charging circuit is used to lower the detection voltage of the headphone access port, and the charging circuit comprises: a first resistor, one end of the first resistor is connected to the conduction module; a first capacitor, one end of the first capacitor is connected to the other end of the first resistor, and the other end of the first capacitor is grounded.

2. The earphone recognition module according to claim 1, characterized in that: The mode control module is a MKS22D12A chip.

3. The earphone recognition module according to claim 1, characterized in that: The conduction module comprises: A PMOS tube, a source of which is connected to the first voltage lowering module and the second voltage lowering module; A parasitic diode, wherein the anode of the parasitic diode is connected to the drain of the PMOS tube, and the cathode of the parasitic diode is connected to the source of the PMOS tube.

4. The earphone recognition system is characterized in that: include: The earphone recognition module according to any one of claims 1 to 3; A processor is communicatively connected to the headset recognition module, and is used to obtain and control the output of the audio signal according to the detection voltage.

5. The earphone recognition system according to claim 4, characterized in that: When the detection voltage is pulled low, the processor controls the audio signal to be output from the earphone; when the detection voltage is not pulled low, the processor controls the audio signal to be output from the processor.

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