Hearing aid circuit and electronic equipment

Abstract

The utility model discloses a hearing aid circuit and an electronic device. The hearing aid circuit comprises an audio signal processing module, a receiver loop, a loudspeaker loop and a sound effect improving loop. Wherein the audio signal processing module comprises two audio output channels; the first audio output channel is connected with the loudspeaker loop and the sound effect improving loop, and the second audio output channel is connected with the receiver loop. Specifically, the hearing aid loop is used for inputting a signal to the sound effect improving loop through the first audio output channel when the receiver loop outputs audio, and disconnecting the loudspeaker loop, so that the sound effect improving loop generates a superimposed magnetic field of a magnetic field of the receiver loop. According to the application, the sound effect improving loop and the loudspeaker loop of the hearing aid circuit are connected in parallel to the same audio output channel of the audio signal processing module, so that the output sound effect of the receiver loop is improved on the basis of not additionally adding a power amplifier in the hearing aid circuit, and the design cost of the circuit is reduced at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of communications, and in particular relates to a hearing aid circuit and an electronic device. Background Art

[0002] At present, when hearing-impaired users wearing hearing aids use digital mobile phones for communication, they can use the hearing aids to first obtain the electromagnetic wave signals emitted by the earpiece device of the digital mobile phone, and then convert the electromagnetic wave signals into sound signals to transmit to themselves.

[0003] However, since the hearing aid circuit inside the digital mobile phone in the prior art is too complicated, the design cost of the hearing aid circuit is relatively high.

[0004] Therefore, reducing the design cost of hearing aid circuits inside digital mobile phones has become an urgent problem to be solved. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a hearing aid circuit and an electronic device, which can connect the sound enhancement circuit of the hearing aid circuit and the speaker circuit in parallel on the same audio output channel of the audio signal processing module, so that without adding an additional power amplifier inside the hearing aid circuit, the sound enhancement circuit can generate a superimposed magnetic field of the earpiece loop magnetic field through the driving effect of the output audio, thereby improving the output sound effect of the earpiece loop and reducing the design cost of the circuit.

[0006] The hearing aid circuit is as follows:

[0007] According to a first aspect of the present application, a hearing aid circuit is provided, comprising: an audio signal processing module, an earpiece circuit, a speaker circuit, and a sound effect enhancement circuit; wherein the audio signal processing module comprises two audio output channels, a first audio output channel is respectively connected to the speaker circuit and the sound effect enhancement circuit, and a second audio output channel is connected to the earpiece circuit;

[0008] The hearing aid circuit is used to input a signal to the sound enhancement circuit through the first audio output channel and disconnect the speaker circuit when the earpiece loop outputs audio, so that the sound enhancement circuit generates a superimposed magnetic field of the magnetic field of the earpiece loop.

[0009] In addition, the hearing aid circuit of the present application may also have the following additional technical features:

[0010] In combination with the first aspect, in a possible implementation, the first audio output channel includes a first output interface and a second output interface; the second audio output channel includes a third output interface and a fourth output interface; the speaker circuit includes a first capacitor, a second capacitor, a power amplifier, and a speaker device;

[0011] The first output interface is connected to the negative input terminal of the power amplifier through the first capacitor, and the negative output terminal of the power amplifier is connected to the negative electrode of the speaker device; the second output interface is connected to the positive input terminal of the power amplifier through the second capacitor, and the positive output terminal of the power amplifier is connected to the positive electrode of the speaker device.

[0012] In combination with the first aspect, in a possible implementation, the sound enhancement circuit includes a first resistor, a second resistor and an inductor; the first output interface is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the inductor, the other end of the inductor is connected to one end of the second resistor, and the other end of the second resistor is connected to the second output interface.

[0013] In combination with the first aspect, in a possible implementation, the earpiece loop includes a third resistor, a fourth resistor and an earpiece device; the third output interface is connected to the negative electrode of the earpiece device through the third resistor, and the positive electrode of the earpiece device is connected to the fourth output interface through the fourth resistor.

[0014] According to a second aspect of the present application, an electronic device is provided, comprising the hearing aid circuit in the first aspect.

[0015] In addition, the electronic device of the present application may also have the following additional technical features:

[0016] In combination with the second aspect, in a possible implementation, the electronic device also includes a sound enhancement control; when the sound enhancement control is turned on, the sound enhancement circuit of the hearing aid circuit generates a superimposed magnetic field of the magnetic field of the earpiece circuit of the hearing aid circuit.

[0017] In combination with the second aspect, in a possible implementation, when the sound enhancement control is turned on, the second audio output channel outputs a signal, and the third resistor, the earpiece device and the fourth resistor are connected; the first audio output channel outputs a signal at the same time, the first resistor, the inductor device and the second resistor are connected, and the power amplifier is turned off.

[0018] In combination with the second aspect, in a possible implementation, a first on-off switch is also included between the first capacitor and the power amplifier; when the sound enhancement control is turned on, the second audio output channel outputs a signal, and the third resistor, the earpiece device and the fourth resistor are connected; the first audio output channel outputs a signal at the same time, the first resistor, the inductor device and the second resistor are connected, and the first on-off switch is turned on.

[0019] In combination with the second aspect, in a possible implementation, a second on-off switch is also included between the first resistor and the inductor device; when the sound enhancement control is turned off, the first audio output channel outputs a signal, the first capacitor, the second capacitor, the power amplifier and the speaker device are connected, and the second on-off switch is turned on; the second audio output channel is turned off.

[0020] In combination with the second aspect, in a possible implementation, when the sound enhancement control is turned off, the second audio output channel outputs a signal, the third resistor, the earpiece device and the fourth resistor are connected; and the first audio output channel is turned off.

[0021] The hearing aid circuit and electronic device provided in the embodiments of the present application, on the one hand, use the sound enhancement circuit inside the hearing aid circuit to generate a superimposed magnetic field of the earpiece loop magnetic field without additionally increasing the earpiece loop gain, thereby enhancing the electromagnetic wave signal emitted by the earpiece loop, so that the hearing aid circuit can meet the hearing aid compatibility standard, and at the same time improve the output sound effect of the earpiece loop to avoid distortion of the audio output by the earpiece loop; on the other hand, compared with the prior art in which a power amplifier amplifies the driving effect of the audio output channel output sound effect on the sound enhancement circuit, the present application connects the sound enhancement circuit of the hearing aid circuit in parallel with the speaker circuit on the same audio output channel of the audio signal processing module, so that the sound enhancement circuit can directly generate a superimposed magnetic field of the earpiece loop magnetic field under the driving effect of the output audio, thereby improving the output sound effect of the earpiece loop without adding an additional power amplifier inside the hearing aid circuit, and reducing the design cost of the hearing aid circuit.

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

[0023] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 This is a diagram of an implementation environment architecture of a hearing aid circuit according to an embodiment of the present application;

[0025] Figure 2 A schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application;

[0026] Figure 3 Another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application;

[0027] Figure 4Another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application;

[0028] Figure 5 Another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of an electronic device 600 provided in an embodiment of the present application;

[0030] Figure 7 Another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application;

[0031] Figure 8 This is another schematic diagram of the hearing aid circuit 200 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. In addition, the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order of objects.

[0034] First, the terms involved in this application are explained as follows:

[0035] (1) Hearing Aid Compatibility (HAC) standard: refers to the compatibility standard of digital mobile phones and other wireless devices with hearing aids. Specifically, this standard is to ensure that there is no interference or noise during the use of mobile communication devices, so as to provide a clear call and audio experience, so that hearing-impaired users wearing hearing aids can use digital mobile phones for normal calls.

[0036] It should be noted that when a digital mobile phone or other wireless device is in a handset mode during communication (ie, a hearing-impaired user uses a handset to receive sound), the above-mentioned hearing aid compatibility standards need to be considered.

[0037] The present application embodiment provides an implementation environment architecture diagram of a hearing aid circuit. Figure 1 As shown, the implementation environment architecture may include: a mobile device 10 and a hearing aid device 20. The mobile device 10 may perform voice calls and data transmissions through a wireless communication network; for example, the mobile device 10 may be a smart phone, a tablet computer, a laptop computer, a portable music player, etc. with a wireless connection function. The hearing aid device 20 may be used to amplify the sounds around the hearing-impaired user and improve the clarity of the voice; for example, it may be a hearing aid, a deaf electronic device, a hearing aid headset, etc.

[0038] Exemplarily, when the hearing aid circuit is disposed inside the mobile device 10, the receiver device in the hearing aid circuit may correspond to the receiver of the mobile device 10, and the speaker device in the hearing aid circuit may correspond to the speaker of the mobile device 10. The receiver of the mobile device 10 may convert electrical signals into sound signals for receiving sound during a call; the speaker of the mobile device 10 may also convert electrical signals into sound signals and amplify the sound signals to improve the clarity of the sound.

[0039] In a specific implementation, when a hearing-impaired user wearing a hearing aid device 20 uses a mobile device 10 for communication, the earpiece device of the hearing aid circuit inside the mobile device 10 can generate a magnetic field. At this time, the hearing-impaired user can use the hearing aid device 20 to obtain the electromagnetic wave signal generated by the earpiece device, and then the hearing aid device 20 converts the obtained electromagnetic wave signal into a sound signal to achieve normal communication.

[0040] However, in the prior art, the magnetic field strengths formed by different earpiece devices are not the same. For earpiece devices with weaker magnetic field strengths, the hearing aid device 20 cannot completely obtain the electromagnetic wave signal, thereby causing the hearing-impaired user to be unable to make normal calls. Secondly, because the hearing aid circuit inside the mobile device 10 in the prior art is too complicated, this leads to the problem of high design cost of the hearing aid circuit.

[0041] Based on this, an embodiment of the present application provides a hearing aid circuit, which can connect the sound enhancement circuit of the hearing aid circuit and the speaker circuit in parallel on the same audio output channel of the audio signal processing module, so that without adding an additional power amplifier inside the hearing aid circuit, the sound enhancement circuit can generate a superimposed magnetic field of the earpiece loop magnetic field through the driving effect of the output audio, thereby improving the output sound effect of the earpiece loop and reducing the design cost of the circuit.

[0042] Figure 2 A schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application. Figure 2As shown, the hearing aid circuit 200 includes: an audio signal processing module 201, an earpiece circuit 202, a speaker circuit 203 and a sound effect enhancement circuit 204; wherein the audio signal processing module 201 includes two audio output channels, the first audio output channel is connected to the speaker circuit 203 and the sound effect enhancement circuit 204 respectively, and the second audio output channel is connected to the earpiece circuit 202;

[0043] Specifically, the hearing aid circuit 200 is used to input a signal to the sound enhancement circuit 204 through the first audio output channel when the earpiece loop 202 outputs audio, and disconnect the speaker loop 203, so that the sound enhancement circuit 204 generates a superimposed magnetic field of the magnetic field of the earpiece loop 202.

[0044] In a possible implementation, the audio signal processing module 201 can input audio signals to the receiver circuit 202, the speaker circuit 203, and the sound enhancement circuit 204 inside the hearing aid circuit respectively through different audio signal output channels.

[0045] Exemplarily, the audio signal processing module 201 may be used for encoding and decoding of digital audio signals, and may be, for example, an integrated circuit chip audio codec chip.

[0046] Specifically, the audio signal processing module 201 can convert analog audio signals into digital signals (ADC, analog-to-digital conversion), and convert digital audio signals into analog signals (DAC, digital-to-analog conversion), so as to facilitate the transmission and processing of audio signals within the hearing aid circuit.

[0047] In a possible implementation, the earpiece loop 202 may generate a magnetic field when the second audio output channel outputs an audio signal, so that the hearing aid of the hearing-impaired user can obtain the electromagnetic wave signal of the audio signal.

[0048] In one possible implementation, the sound enhancement circuit 204 can generate a superimposed magnetic field of the magnetic field of the earpiece loop 202 when the first audio output channel outputs an audio signal, so as to enhance the magnetic field of the earpiece loop 202, so that the hearing aid of the hearing-impaired user can obtain the complete electromagnetic wave signal.

[0049] The hearing aid circuit 200 provided in the embodiment of the present application, on the one hand, uses the sound effect enhancement circuit 204 inside the hearing aid circuit 200 to generate a superimposed magnetic field of the magnetic field of the earpiece circuit 202 without additionally increasing the gain of the earpiece circuit 202, thereby enhancing the electromagnetic wave signal emitted by the earpiece circuit 202, so that the hearing aid circuit can meet the hearing aid compatibility standard, and at the same time improves the output sound effect of the earpiece circuit 202 to avoid distortion of the audio output of the earpiece circuit 202; on the other hand, compared with the prior art in which the sound effect of the audio output channel output is amplified by a power amplifier to drive the sound effect enhancement circuit 204, the present application connects the sound effect enhancement circuit 204 of the hearing aid circuit in parallel with the speaker circuit 203 on the same audio output channel of the audio signal processing module, so that the sound effect enhancement circuit 204 can directly generate a superimposed magnetic field of the magnetic field of the earpiece circuit 202 under the driving action of the output audio, thereby improving the output sound effect of the earpiece circuit 202 without adding an additional power amplifier inside the hearing aid circuit, and reducing the design cost of the hearing aid circuit.

[0050] In another embodiment of the present application, a connection method of the speaker circuit 203 is also introduced. For example, Figure 3 FIG. 2 is another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application. Figure 3 As shown, the first audio output channel includes a first output interface and a second output interface; the second audio output channel includes a third output interface and a fourth output interface; the speaker circuit 203 includes a first capacitor 301, a second capacitor 302, a power amplifier 303 and a speaker device 304;

[0051] Specifically, the first output interface is connected to the negative input terminal IN_N of the power amplifier 303 through the first capacitor 301, and the negative output terminal OUT_N of the power amplifier 303 is connected to the negative electrode of the speaker device 304; the second output interface is connected to the positive input terminal IN_P of the power amplifier 303 through the second capacitor 302, and the positive output terminal OUT_P of the power amplifier 303 is connected to the positive electrode of the speaker device 304.

[0052] In the embodiment of the present application, the speaker circuit 203 is connected to the first output interface and the second output interface, so that the audio signal output by the first audio output channel of the audio signal processing module 201 can be transmitted through the speaker device 304 in the speaker circuit 203, thereby achieving the external speaker effect of the audio signal.

[0053] In a possible implementation, the power amplifier 303 may be used to increase the output power of the audio signal output by the first audio output channel to amplify the audio signal.

[0054] Exemplarily, the power amplifier 303 may amplify the output power of the audio signal by amplifying the current or voltage of the output audio signal.

[0055] Exemplarily, the power amplifier 303 may include one or more transistors, vacuum tubes or other amplifying elements; for example, it may be an audio power amplifier.

[0056] In a possible implementation, the first capacitor 301 and the second capacitor 302 may be used to filter out low-frequency components or high-frequency noise in the output audio signal, thereby eliminating interference signals in the hearing aid circuit.

[0057] In a possible implementation, the speaker device 304 can be used to convert the audio signal amplified by the power amplifier 303 into sound. The speaker device 304 can also be a loudspeaker device.

[0058] Exemplarily, the speaker device 304 may include a diaphragm, a magnet, terminals, leads, etc. Specifically, the diaphragm may be made of thin materials such as paper, plastic, or metal, and when an audio signal passes through the speaker device 304, the diaphragm may generate sound under the driving action of the magnetic field generated by the magnet.

[0059] It should be noted that the first output interface and the second output interface may be the first audio output interface AUX_OUT_M and AUX_OUT_P respectively; the third output interface and the fourth output interface may be the second audio output interface EAR_OUT_M and EAR_OUT_P respectively.

[0060] In another embodiment of the present application, a connection method of the sound enhancement circuit 204 is also introduced. For example, Figure 4 FIG. 2 is another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application. Figure 4 As shown, the sound enhancement circuit 204 includes a first resistor 401, a second resistor 402 and an inductor 403; the first output interface is connected to one end of the first resistor 401, the other end of the first resistor 401 is connected to one end of the inductor 403, the other end of the inductor 403 is connected to one end of the second resistor 402, and the other end of the second resistor 402 is connected to the second output interface.

[0061] In an embodiment of the present application, the sound enhancement circuit 204 is connected to the first output interface and the second output interface, and the audio signal output by the first audio output channel of the audio signal processing module 201 can drive the sound enhancement circuit 204 to generate a superimposed magnetic field of the magnetic field of the earpiece circuit 202.

[0062] In a possible implementation, when the first audio output channel of the audio signal processing module 201 outputs an audio signal, the inductor 403 in the sound enhancement circuit 204 can generate a magnetic field under the driving action of the current.

[0063] Exemplarily, the inductor 403 may be formed by a conductor coil or a solenoid. Specifically, when current passes through the inductor 403, the inductor 403 may generate a corresponding magnetic field.

[0064] It should be noted that the magnitude of the magnetic field generated by the inductor 403 can be determined according to the number of turns of the coil inside the inductor 403 and the geometric shape of the coil, as well as the material inside the coil.

[0065] In another embodiment of the present application, a connection method of the earpiece loop 202 is also introduced. For example, Figure 5 FIG. 2 is another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application. Figure 5 As shown, the earpiece loop 202 includes a third resistor 501 , a fourth resistor 502 and an earpiece device 503 ; the third output interface is connected to the negative electrode of the earpiece device 503 through the third resistor 501 , and the positive electrode of the earpiece device 503 is connected to the fourth output interface through the fourth resistor 502 .

[0066] In the embodiment of the present application, the earpiece loop 202 is connected to the third output interface and the fourth output interface, so that the audio signal output by the second audio output channel of the audio signal processing module 201 can be transmitted through the earpiece device 503 in the earpiece loop 202.

[0067] In a possible implementation, the earpiece device 503 in the earpiece loop 202 may be used to convert the electrical signal of the output audio signal into a sound signal.

[0068] Exemplarily, the earpiece device 503 in the earpiece loop 202 may be a dynamic earpiece, an electronic earpiece, a bone conduction earpiece, a ceramic earpiece, or the like.

[0069] It should be noted that, by providing the third resistor 501 and the fourth resistor 502 on the earpiece loop 202 , it is possible to prevent the earpiece component 503 from being damaged when an excessive current passes through the earpiece component 503 , thereby ensuring the normal operation of the earpiece component 503 .

[0070] In the above-mentioned embodiment, a hearing aid circuit 200 is provided. In another embodiment of the present application, an electronic device 600 is also provided. For example, Figure 6 600 is a schematic diagram of an electronic device 600 provided in an embodiment of the present application. Figure 6 As shown, the electronic device 600 includes the hearing aid circuit 200 described above.

[0071] In a possible implementation, when the hearing aid circuit 200 is disposed inside the electronic device 600, the receiver device 503 in the hearing aid circuit 200 may correspond to the receiver of the electronic device 600, and the speaker device 304 in the hearing aid circuit 200 may correspond to the speaker of the electronic device 600. The receiver device 503 in the hearing aid circuit 200 may convert an electrical signal into a sound signal for receiving sound during a call; the speaker device 304 in the hearing aid circuit 200 may also convert an electrical signal into a sound signal and amplify the sound signal to improve the clarity of the sound.

[0072] The electronic device 600 provided in the embodiment of the present application, on the one hand, uses the sound effect enhancement circuit 204 inside the hearing aid circuit 200 to generate a superimposed magnetic field of the magnetic field of the earpiece circuit 202 without additionally increasing the gain of the earpiece circuit 202, thereby enhancing the electromagnetic wave signal emitted by the earpiece circuit 202, so that the hearing aid circuit can meet the hearing aid compatibility standard, and at the same time improves the output sound effect of the earpiece circuit 202 to avoid distortion of the audio output of the earpiece circuit 202; on the other hand, compared with the prior art in which the sound effect of the audio output channel is amplified by a power amplifier to drive the sound effect enhancement circuit 204, the present application connects the sound effect enhancement circuit 204 of the hearing aid circuit and the speaker circuit 203 in parallel on the same audio output channel of the audio signal processing module, so that the sound effect enhancement circuit 204 can directly generate a superimposed magnetic field of the magnetic field of the earpiece circuit 202 under the driving action of the output audio, thereby improving the output sound effect of the earpiece circuit 202 without adding an additional power amplifier inside the hearing aid circuit, and reducing the design cost of the hearing aid circuit.

[0073] In another embodiment of the present application, other components of the electronic device 600 are also introduced. Exemplarily, the electronic device 600 further includes a sound enhancement control; when the sound enhancement control is turned on, the sound enhancement loop 204 of the hearing aid circuit 200 generates a superimposed magnetic field of the magnetic field of the earpiece loop 202 of the hearing aid circuit 200.

[0074] In the embodiment of the present application, whether the sound enhancement circuit 204 generates a magnetic field can be determined according to the switch state of the sound enhancement control of the electronic device 600, thereby achieving flexible control of the sound effect output by the electronic device 600.

[0075] In one possible implementation, the sound enhancement control of the electronic device 600 may be a HAC mode control.

[0076] Exemplarily, when the sound enhancement control is turned on, it can indicate that the electronic device 600 enters the HAC mode. At this time, the sound enhancement circuit 204 of the hearing aid circuit 200 can generate a superimposed magnetic field of the magnetic field of the earpiece circuit 202 of the hearing aid circuit 200 to enhance the output sound of the earpiece circuit 202.

[0077] In another embodiment of the present application, a connection state inside the hearing aid circuit 200 when the sound enhancement control is turned on is also introduced. Exemplarily, when the sound enhancement control is turned on, the second audio output channel outputs a signal, the third resistor 501, the earpiece device 504 and the fourth resistor 502 are connected; the first audio output channel outputs a signal at the same time, the first resistor 401, the inductor device 403 and the second resistor 402 are connected, and the power amplifier 303 is turned off.

[0078] In the embodiment of the present application, when the sound enhancement control of the electronic device 600 is in the on state, the power amplifier 303 of the speaker circuit 203 is in the off state. At this time, the speaker circuit 203 is in an open circuit state and the speaker device 304 does not work, thereby further enhancing the magnetic field of the earpiece circuit 202.

[0079] In one possible implementation, when the sound enhancement control of the electronic device 600 is in the turned-on state, the first audio output channel outputs an audio signal, the first output interface, the first resistor 401, the inductor 403, the second resistor 402 are connected to the second output interface, and the current of the audio signal output by the output interface passes through the inductor 403, so that the inductor 403 generates a magnetic field.

[0080] In another possible implementation, when the sound enhancement control of the electronic device 600 is on, the second audio output channel and the first audio output channel simultaneously output audio signals, the third output interface and the third resistor 501 are connected to the earpiece device 504; the fourth output interface and the fourth resistor 502 are connected to the earpiece device 504; at this time, the earpiece device 504 converts the electrical signal of the audio signal output by the output interface into a sound signal.

[0081] It should be noted that when the sound enhancement control of the electronic device 600 is turned on and the first audio output channel outputs an audio signal, the power amplifier 303 of the speaker circuit 203 is turned off and the speaker device 304 does not make any sound.

[0082] In another embodiment of the present application, another connection state of the hearing aid circuit 200 when the sound enhancement control is turned on is also introduced. Figure 7 FIG. 2 is another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application. Figure 7As shown, a first on-off switch 701 is also included between the first capacitor 301 and the power amplifier 303; when the sound enhancement control is turned on, the second audio output channel outputs a signal, and the third resistor 501, the earpiece device 504 and the fourth resistor 502 are connected; the first audio output channel outputs a signal at the same time, the first resistor 401, the inductor device 403 and the second resistor 402 are connected, and the first on-off switch 701 is turned on.

[0083] In an embodiment of the present application, the first on-off switch 701 set on the speaker circuit 203 can be used to put the speaker circuit 203 in an off-circuit state, so that when the sound enhancement control of the electronic device 600 is in the on state, the first on-off switch 701 is turned on, and the speaker device 304 of the speaker circuit 203 is in the off state, further enhancing the magnetic field of the earpiece circuit 202.

[0084] In one possible implementation, a first on-off switch 701 may be provided between the first capacitor 301 on the speaker circuit 203 and the power amplifier 303, so that when the first on-off switch 701 is in an on state, the speaker circuit 203 is open; and when the first on-off switch 701 is in a closed state, the speaker circuit 203 is open.

[0085] Exemplarily, when the sound enhancement control of the electronic device 600 is turned on, the first on-off switch 701 is in the on state, and the speaker circuit 203 is open.

[0086] For example, the first on-off switch 701 may be a single-pole single-throw switch, which may control the flow of current in the speaker circuit 203 by opening or closing the internal contacts of the switch, so as to control the on-off state of the speaker circuit 203 .

[0087] In another embodiment of the present application, a connection state inside the hearing aid circuit 200 when the sound enhancement control is turned off is also introduced. Figure 8 FIG. 2 is another schematic diagram of a hearing aid circuit 200 provided in an embodiment of the present application. Figure 8 As shown, a second on-off switch 801 is also included between the first resistor 401 and the inductor device 403; when the sound enhancement control is turned off, the first audio output channel outputs a signal, the first capacitor 301, the second capacitor 302, the power amplifier 303 and the speaker device 304 are connected, and the second on-off switch 801 is turned on; the second audio output channel is closed.

[0088] It should be noted that when the sound enhancement control of the electronic device 600 is turned off, the electronic device 600 is in normal mode (i.e., non-HAC mode). At this time, the audio signal processing module 201 inside the hearing aid circuit 200 only turns on one audio output channel to make the output sound of the electronic device 600 in the external speaker state / earpiece state.

[0089] In an embodiment of the present application, when the sound enhancement control of the electronic device 600 is turned off and the first audio output channel of the audio signal processing module 201 outputs a signal, the output sound of the electronic device 600 can be put in an external speaker state through the path state of the speaker loop 203 inside the hearing aid circuit 200 (that is, the electronic device 600 is put in a hands-free state through the audio output of the speaker device 304); at this time, the second audio output channel does not output an audio signal, and the sound enhancement loop 204 connected in parallel with the speaker loop 203 is also open.

[0090] In one possible implementation, a second on-off switch 801 may be provided between the first resistor 401 and the inductor 403 of the sound enhancement circuit 204, so that when a signal is outputted on the first audio output channel, the sound enhancement circuit 204 may be in an open circuit state when the second on-off switch 801 is turned on.

[0091] Exemplarily, the second on-off switch 801 may also be a single-pole single-throw switch, which can control the flow of current in the sound enhancement circuit 204 by opening or closing the internal contacts of the switch to achieve control of the on-off state of the sound enhancement circuit 204.

[0092] In another embodiment of the present application, another connection state of the hearing aid circuit 200 when the sound enhancement control is turned off is also introduced. Exemplarily, when the sound enhancement control is turned off, the second audio output channel outputs a signal, the third resistor 501, the earpiece device 503 and the fourth resistor 502 are connected; and the first audio output channel is turned off.

[0093] In an embodiment of the present application, when the sound enhancement control of the electronic device 600 is turned off and the second audio output channel of the audio signal processing module 201 outputs a signal, the output sound of the electronic device 600 can be put in a handset state through the path state of the earpiece loop 202 inside the hearing aid circuit 200 (that is, the electronic device 600 is put in a handset state through the audio output of the earpiece device 503), and at this time the first audio output channel does not output an audio signal.

[0094] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the aforementioned disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other to form a technical solution.

Claims

1. A hearing aid circuit, characterized in that: include: An audio signal processing module, an earpiece circuit, a speaker circuit and a sound effect enhancement circuit; wherein the audio signal processing module includes two audio output channels, the first audio output channel is respectively connected to the speaker circuit and the sound effect enhancement circuit, and the second audio output channel is connected to the earpiece circuit; The hearing aid circuit is used to input a signal to the sound enhancement circuit through the first audio output channel and disconnect the speaker circuit when the earpiece loop outputs audio, so that the sound enhancement circuit generates a superimposed magnetic field of the magnetic field of the earpiece loop.

2. The hearing aid circuit according to claim 1, characterized in that: The first audio output channel includes a first output interface and a second output interface; the second audio output channel includes a third output interface and a fourth output interface; the speaker circuit includes a first capacitor, a second capacitor, a power amplifier and a speaker device; The first output interface is connected to the negative input terminal of the power amplifier through the first capacitor, and the negative output terminal of the power amplifier is connected to the negative electrode of the speaker device; the second output interface is connected to the positive input terminal of the power amplifier through the second capacitor, and the positive output terminal of the power amplifier is connected to the positive electrode of the speaker device.

3. The hearing aid circuit according to claim 2, characterized in that: The sound enhancement circuit includes a first resistor, a second resistor and an inductor; the first output interface is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the inductor, the other end of the inductor is connected to one end of the second resistor, and the other end of the second resistor is connected to the second output interface.

4. The hearing aid circuit according to claim 2, characterized in that: The receiver loop includes a third resistor, a fourth resistor and a receiver component; the third output interface is connected to the negative electrode of the receiver component through the third resistor, and the positive electrode of the receiver component is connected to the fourth output interface through the fourth resistor.

5. An electronic device, characterized in that: Includes the hearing aid circuit described in any one of claims 1-4.

6. The electronic device according to claim 5, characterized in that: The electronic device further comprises a sound enhancement control; when the sound enhancement control is turned on, the sound enhancement loop of the hearing aid circuit generates a superimposed magnetic field of the magnetic field of the earpiece loop of the hearing aid circuit.

7. The electronic device according to claim 6, characterized in that: When the sound enhancement control is turned on, the second audio output channel outputs a signal, the third resistor, the earpiece device and the fourth resistor are connected; the first audio output channel outputs a signal at the same time, the first resistor, the inductor device and the second resistor are connected, and the power amplifier is turned off.

8. The electronic device according to claim 6, characterized in that: A first on-off switch is also included between the first capacitor and the power amplifier; when the sound enhancement control is turned on, the second audio output channel outputs a signal, and the third resistor, the earpiece device and the fourth resistor are connected; the first audio output channel outputs a signal at the same time, the first resistor, the inductor device and the second resistor are connected, and the first on-off switch is turned on.

9. The electronic device according to claim 6, characterized in that: A second on-off switch is also included between the first resistor and the inductor device; when the sound enhancement control is turned off, the first audio output channel outputs a signal, the first capacitor, the second capacitor, the power amplifier and the speaker device are connected, and the second on-off switch is turned on; the second audio output channel is closed.

10. The electronic device according to claim 6, characterized in that: When the sound enhancement control is turned off, the second audio output channel outputs a signal, the third resistor, the earpiece component and the fourth resistor are connected; and the first audio output channel is turned off.

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