CN213694162U

CN213694162U - Hearing aid equipment

Info

Publication number: CN213694162U
Application number: CN202023141297.3U
Authority: CN
Inventors: 钟灏然; 王成; 董洁
Original assignee: Anhui Huami Information Technology Co Ltd
Current assignee: Anhui Huami Information Technology Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-07-13
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to an electronic equipment field specifically provides a hearing aid equipment, includes: a sound pickup unit and a receiver unit; the noise reduction processing unit comprises a first input end and a first output end, and the first input end is connected with the pickup unit; the wireless processing unit comprises a radio frequency end and a second output end, and the radio frequency end is connected with an antenna of the hearing-aid equipment; and the compensation processing unit comprises a second input end and a third output end, the second input end is connected with the second output end of the wireless processing unit and the first output end of the noise reduction processing unit, and the third output end is connected with the telephone receiver unit. This disclosed scheme improves hearing aid equipment and compensates the effect to user's hearing, and the processing unit that makes an uproar falls moreover and carries out noise reduction, improves hearing aid equipment's supplementary effect.

Description

Hearing aid equipment

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a hearing aid device.

Background

The Bluetooth hearing aid has a good hearing assistance effect on people with hearing impairment, and enables users to listen to multimedia sounds such as telephones, computers or televisions in a wireless mode through the Bluetooth function. Bluetooth audiphone among the correlation technique, the hearing aid is supplementary the effect relatively poor, is difficult to satisfy the user demand.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem of poor auxiliary effect of a Bluetooth hearing aid in the related art, the disclosed embodiment provides hearing aid equipment.

In some embodiments, a hearing assistance device comprises:

a sound pickup unit and a receiver unit;

the noise reduction processing unit comprises a first input end and a first output end, and the first input end is connected with the pickup unit;

the wireless processing unit comprises a radio frequency end and a second output end, and the radio frequency end is connected with an antenna of the hearing-aid equipment;

and the compensation processing unit comprises a second input end and a third output end, the second input end is connected with the second output end of the wireless processing unit and the first output end of the noise reduction processing unit, and the third output end is connected with the telephone receiver unit.

In some embodiments, the hearing assistance device further comprises:

the wireless processing unit further comprises a third input end, and the third input end is connected with the first output end of the noise reduction processing unit.

In some embodiments, the hearing assistance device further comprises:

the first switch unit comprises a first signal input end, a first signal output end and a second signal output end, the noise reduction processing unit further comprises a fourth input end, the first signal input end of the first switch unit is connected with the second output end of the wireless processing unit, the first signal output end is connected with the fourth input end of the noise reduction processing unit, and the second signal output end is connected with the second input end of the compensation processing unit.

In some embodiments, the hearing assistance device further comprises:

the second switch unit comprises a second signal input end, a third signal output end and a fourth signal output end, the second signal input end is connected with the first output end of the noise reduction processing unit, the third signal output end is connected with the third input end of the wireless processing unit, and the fourth signal output end is connected with the second input end of the compensation processing unit.

In some embodiments, the wireless processing unit further comprises a fourth output terminal, and the fourth output terminal is connected to the receiver unit.

In some embodiments, the pickup unit includes:

the first microphone is used for acquiring a first audio signal; and

and the second microphone is used for acquiring a second audio signal.

In some embodiments, the noise reduction processing unit includes:

an analog-to-digital converter for converting an input analog signal into a digital signal; and

and the first digital signal processing DSP chip is used for carrying out noise reduction processing on the input digital signal.

In some embodiments, the wireless processing unit comprises:

the radio frequency circuit is connected with the antenna; and

and the first digital-to-analog converter is connected with the radio frequency circuit and is used for converting the input digital signal into an analog signal.

In some embodiments, the compensation processing unit comprises:

the second digital signal processing DSP chip is used for performing compensation processing on the input digital signal; and

and the second digital-to-analog converter is used for converting the input digital signal into an analog signal.

In some embodiments, the hearing assistance device further comprises:

and the controller is connected with the control end of the first switch unit and is used for controlling the signal transmission channel of the first switch unit to be switched on based on the current scene information.

In some embodiments, the hearing assistance device further comprises:

the controller is connected with the control end of the second switch unit;

the operating switch is arranged on the shell of the hearing-aid device and electrically connected with the controller, and the controller is used for controlling the connection or disconnection of the signal transmission channel of the second switch unit based on the operating instruction of the operating switch.

In some embodiments, the hearing assistance device is a headphone hearing assistance device.

The hearing-aid equipment of the embodiment comprises a pickup unit and a receiver unit, wherein a first input end of a noise reduction processing unit is connected with the pickup unit, a first output end of the noise reduction processing unit is connected with a second input end of a compensation processing unit, a second output end of a wireless processing unit is connected with a second input end of the compensation processing unit, and a third output end of the compensation processing unit is connected with the receiver. Therefore, the hearing aid compensation processing is carried out on the audio signals of the wireless processing unit and the audio signals collected by the pickup unit by the compensation processing unit, and the hearing aid compensation effect on a user is improved. And the noise reduction processing unit carries out noise reduction processing on the noise, and the auxiliary effect of the hearing aid equipment is improved.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a hearing assistance device according to some embodiments of the present disclosure.

Fig. 2 is a schematic structural diagram of a pickup unit according to some embodiments of the present disclosure.

Fig. 3 is a schematic structural diagram of a noise reduction processing unit according to some embodiments of the present disclosure.

Fig. 4 is a schematic structural diagram of a compensation processing unit according to some embodiments of the present disclosure.

Fig. 5 is a schematic diagram of a hearing assistance device in some embodiments according to the present disclosure.

Fig. 6 is a structural and schematic diagram of a hearing assistance device in some embodiments according to the present disclosure.

Fig. 7 is a block diagram of a hearing assistance device in accordance with some embodiments of the present disclosure.

Fig. 8 is a schematic diagram of a hearing assistance device in some embodiments according to the present disclosure.

Fig. 9 is a schematic structural diagram of a hearing assistance device in accordance with some embodiments of the present disclosure.

Fig. 10 is a schematic block diagram of a wireless processing unit in some embodiments according to the present disclosure.

Fig. 11 is a schematic diagram of a hearing assistance device in some embodiments according to the present disclosure.

Fig. 12 is a schematic diagram of a hearing assistance device in some embodiments according to the present disclosure.

Fig. 13 is a schematic diagram of a hearing assistance device in some embodiments according to the present disclosure.

Fig. 14 is a schematic diagram of a hearing assistance device in some embodiments according to the present disclosure.

Detailed Description

The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure. In addition, technical features involved in different embodiments of the present disclosure described below may be combined with each other as long as they do not conflict with each other.

The traditional hearing aid is generally worn on the ear of a user, and the audio signal collected by the microphone is compensated and then sent by the receiver, so that the user can hear the compensated and amplified speech signal, and the hearing aid has a good auxiliary effect on the crowd with hearing disorder.

The bluetooth hearing aid is characterized in that a bluetooth wireless connection function is added on the hearing aid, so that the hearing aid can be wirelessly connected with devices such as a mobile phone, a computer or a television, and audio signals of the devices are received through bluetooth, so that a user can wirelessly listen to the audio of the devices. However, the bluetooth hearing aid in the related art has a poor hearing aid assisting effect, and is difficult to meet the actual use requirements.

Based on the defects in the related art, the embodiments of the present disclosure provide a hearing assistance device, so as to improve the hearing compensation effect of the hearing assistance device. Fig. 1 shows a block diagram of a hearing aid device according to some embodiments of the present disclosure, which is described below with reference to fig. 1.

As shown in fig. 1, the hearing aid device of the present embodiment includes a sound collecting unit 100, a noise reduction processing unit 200, a wireless processing unit 300, a compensation processing unit 400, and a receiver unit 500. The sound pickup unit 100 may be a microphone array composed of a plurality of microphones, so as to collect speech signals and ambient noise, and provide audio signals for subsequent noise reduction processing.

In one example, as shown in fig. 2, the sound pickup unit 100 includes a first microphone 110 and a second microphone 120. The first microphone 110 may be a front microphone of the system, i.e. a main microphone, and is mainly used for collecting speech audio signals. While the second microphone 120 may be a rear microphone of the system, i.e. a secondary microphone, primarily for capturing ambient audio signals.

It is understood that the implementation of the sound pickup unit 100 is not limited to the above example, and other implementations may be adopted, for example, the sound pickup unit 100 may also be a microphone array composed of a larger number of microphones. The present disclosure is not so limited.

The noise reduction processing unit 200 includes a first input terminal connected to the sound pickup unit 100 so as to receive the audio signal collected by the sound pickup unit 100, and a first output terminal connected to the compensation processing unit 400 so as to transmit the audio signal after the noise reduction processing to the compensation processing unit 400.

The noise reduction processing unit 200 is mainly used for performing noise reduction processing according to the audio signal collected by the sound pickup unit 100, and the noise reduction processing according to the present disclosure may include the following:

1) and (4) carrying out active noise reduction (ANC) processing. According to the environmental noise collected by the finger sound collecting unit 100, the environmental noise is converted into a reverse sound wave through processing and is output by a receiver, and finally the sound heard by human ears comprises the following components: the environmental noise + the opposite-phase environmental noise, and the two sound waves are superposed to reduce or eliminate the noise on sense, so that the beneficiary is the user.

2) And (5) performing environmental noise reduction ENC processing. Through the microphone array of the sound pickup unit 100, the direction of the speaker is accurately calculated, the target voice in the main direction is protected, meanwhile, various interference noises in the environment are removed, and beneficiaries are users themselves.

3) And (5) carrying out call noise reduction CVC processing. According to the audio signals collected by the microphone array of the pickup unit 100, echo and environmental noise are eliminated by a noise elimination algorithm during communication, the signal-to-noise ratio of the own party is improved, and a beneficiary is the opposite party of the communication.

It is to be understood that the noise reduction processing by the noise reduction processing unit 200 is not limited to the above example, and may be any other noise reduction processing suitable for implementation.

It should be particularly noted that the noise reduction processing manner described above can be understood and implemented by those skilled in the art based on the related art, the disclosed solution does not make any improvement on the noise reduction algorithm itself, and the hearing aid device of the present disclosure does not rely on the noise reduction processing algorithm itself. It should be understood that the above examples are only for the purpose of explaining and illustrating the implementation of the disclosed solution, which is conceived in the system structure and does not involve the improvement of the algorithm.

In some embodiments, the noise reduction processing unit 200 includes an analog-to-digital converter and a first digital signal processing DSP chip (hereinafter referred to as "noise reduction DSP"). The analog-to-digital converter is configured to receive an analog audio signal collected by the sound pickup unit 100 and convert the analog audio signal into a digital audio signal. The noise reduction DSP then performs one or more of the noise reduction processes described in the above examples on the digital signal.

It is understood that the analog-to-digital converter may be integrated with the noise reduction DSP on the same DSP chip, or may be a circuit module connected to the outside of the chip, which is not limited by the present disclosure. The noise reduction processing algorithm of the above example is stored in the noise reduction DSP.

In one example, as shown in fig. 3 (a), the noise reduction processing unit 200 is a DSP chip, and the analog-to-digital converter (AD)210 and the noise reduction DSP 220 are integrated in the same DSP chip.

In another example, as shown in fig. 3 (b), the analog-to-digital converter (AD)210 is an analog-to-digital conversion circuit block connected outside the noise reduction DSP 220. The present disclosure is not so limited.

The wireless processing unit 300 is configured to receive an audio signal of an external connection device, and send the audio signal to the compensation processing unit 400 for compensation processing. For example, the wireless processing unit 300 is a bluetooth chip, and the hearing aid device is wirelessly connected to the smart phone through bluetooth, so that the smart phone can transmit audio signals, such as music signals, to the hearing aid device through bluetooth.

The wireless processing unit 300 includes a radio frequency circuit, and the antenna is disposed on the hearing aid and connected to the radio frequency circuit. In one example, the wireless processing unit 300 is a bluetooth chip, which includes a bluetooth radio frequency circuit and a bluetooth antenna disposed on the hearing aid, and the radio frequency circuit serves as a radio frequency terminal of the antenna processing unit 300, which receives or transmits audio signals through the antenna. The wireless processing unit 300 further includes a second output terminal connected to the compensation processing unit 400 so as to transmit the received audio signal to the compensation processing unit 400.

It is understood that the wireless processing unit 300 of the present disclosure may be any wireless communication unit suitable for implementation, such as bluetooth, WiFi, Zigbee, LoRa, etc., and the present disclosure is not limited thereto.

Continuing to refer to fig. 1, the compensation processing unit 400 includes a second input end and a third output end, the second input end of the compensation processing unit 400 is respectively connected to the noise reduction processing unit 200 and the wireless processing unit 300, so as to receive the audio signals of the two, and after performing compensation amplification processing on the audio signals, the audio signals are sent to the receiver unit 500 through the third output end, so that the user can hear the compensated audio signals.

The compensation processing unit 400 is mainly used for performing compensation processing on an audio signal, and the compensation processing described in the present disclosure may include at least one of: hearing compensation processing, acoustic feedback elimination processing, surge suppression processing, pure tone audiometry processing, automatic fitting processing and the like. Therefore, audio signals can be finely processed, the signal to noise ratio is improved, and better hearing aid experience is provided for users.

It is also understood that the compensation process of the compensation processing unit 400 is not limited to the above example, but may be any other compensation process that is suitable for implementation.

It should be particularly noted that the above compensation processing manner can be understood and implemented by those skilled in the art based on the related art, the disclosed solution does not make any improvement on the compensation algorithm itself, and the disclosed hearing aid device does not rely on the compensation processing algorithm itself. It should be understood that the above examples are only for the purpose of explaining and illustrating the implementation of the disclosed solution, which is conceived in the system structure and does not involve the improvement of the algorithm.

In some embodiments, the compensation processing unit 400 includes a second digital-to-analog converter and a second digital signal processing DSP chip (hereinafter "compensation DSP"). The compensation DSP is used to perform one or more of the compensation processes described above on the digital audio signals transmitted by the wireless processing unit 300 and the noise reduction processing unit 200. The second digital-to-analog converter converts the digital audio signal after the compensation process into an analog audio signal and then transmits the analog audio signal to the receiver unit 500 so that the user can hear the compensated audio signal.

It is understood that the second digital-to-analog converter may be integrated on the same DSP chip as the compensation DSP, or may be a circuit module connected to the outside of the chip, which is not limited by the present disclosure. The compensation processing algorithm of the above example is stored in the compensation DSP.

In one example, as shown in fig. 4 (a), the compensation processing unit 400 is a DSP chip, and the compensation DSP 410 and the second digital-to-analog converter (DA)220 are integrated in the same DSP chip.

In another example, as shown in fig. 4 (b), the second digital-to-analog converter (DA)420 is a digital-to-analog conversion circuit module connected outside the compensation DSP 410. The present disclosure is not so limited.

The receiver unit 500 is an earpiece of a hearing aid device, which receives the analog audio signal transmitted by the compensation processing unit 400, so that the user can hear the compensated audio.

One embodiment of the disclosed hearing assistance device is shown in fig. 5. In this embodiment, the wireless processing unit 300 is exemplified by a bluetooth chip, and the scene is exemplified by a hearing aid device and a smart phone listening to music through bluetooth wireless connection. This is explained below with reference to fig. 5.

As shown in fig. 5, in this embodiment, the wireless processing unit 300 receives the audio signal 1 sent by the smart phone through the bluetooth rf antenna, and sends the audio signal 1 to the compensation processing unit 400 through the audio transmission bus. In addition, the sound pickup unit 100 collects the audio signal 2 including speech signals and/or ambient noise through the microphone array, and the noise reduction processing unit 200 performs analog-to-digital conversion and noise reduction processing on the audio signal 2 and then sends the audio signal to the compensation processing unit 400. In one example, the noise reduction processing may include at least one of active noise reduction ANC and ambient noise reduction ENC. The compensation processing unit 400 performs compensation processing and digital-to-analog conversion on the received audio signal 1 and audio signal 2 and then sends the signals to the receiver 500, so that the user can listen to the noise-reduced and compensated music through the receiver 500, thereby improving hearing-aid effect.

According to the hearing aid equipment, the noise reduction processing unit is used for reducing noise, the auxiliary effect of the hearing aid equipment is improved, meanwhile, the hearing aid assisting unit is used for conducting hearing aid compensation processing on the audio signals of the wireless processing unit and the audio signals collected by the pickup unit, and the hearing aid compensation effect of a user in scenes such as listening to music is improved.

As shown in fig. 6, in some embodiments, the wireless processing unit 300 further includes a third input terminal connected to the first output terminal of the noise reduction processing unit 200. In the present embodiment, the wireless processing unit 300 is connected to the noise reduction processing unit 200, thereby realizing hearing assistance for the user in a wireless communication scene. This is explained in detail below with reference to fig. 6.

As shown in fig. 6, in a scenario where the user establishes a bluetooth wireless connection with the smartphone through the hearing aid device while the smartphone is in a call state, that is, the user makes a call through the hearing aid device, for convenience of description, the user of the hearing aid device is referred to as the "own party" and the counterpart establishing a call connection is referred to as the "counterpart".

Firstly, the own party receives the audio signal 1 of the other party through the bluetooth radio frequency antenna of the wireless processing unit 300, the wireless processing unit 300 sends the audio signal 1 to the compensation processing unit 400, and the compensation processing unit 400 performs compensation processing and digital-to-analog conversion on the audio signal 1 and then sends the audio signal to the receiver unit 500, so that the own party can hear the speech information when the other party makes a call.

Secondly, the microphone array of the sound pickup unit 100 collects audio signals, and the collected audio signals include two types:

1) ambient audio. Such as the sound in the surroundings of the own party when the own party is talking.

2) And (5) calling audio. Such as verbal information spoken to the opposite party during the own-party call.

As can be seen from the actual scene, the above-mentioned ambient audio is the audio that is desired to be clearly heard by the owner after the compensation process, and is defined as the audio signal 2. And the call audio is audio that is desired to be transmitted to the counterpart by the wireless processing unit 300 and clearly heard by the counterpart, and is defined as an audio signal 3.

As shown in fig. 6, in the present embodiment, noise reduction processing section 200 processes noise-reduced audio signal 2 and noise-reduced audio signal 3 by using different noise reduction processing methods. For example, the audio signal is processed by active noise reduction ANC and ambient noise reduction ENC to obtain the noise-reduced audio signal 2, and the audio signal 3 is processed by active noise reduction ANC and call noise reduction CVC to obtain the noise-reduced audio signal 3.

The noise reduction processing unit 200 sends the audio signal 3 to the wireless processing unit 300, so that the wireless processing unit 300 sends the audio signal 3 to the smart phone through the bluetooth radio frequency antenna, and further sends the audio signal to the other party. The noise reduction processing unit 200 sends the audio signal 2 to the compensation processing unit 400, so that the compensation processing unit 400 processes the audio signal 2 by the aforementioned compensation processing method, and then performs digital-to-analog conversion on the audio signal to send to the receiver unit 500.

As can be seen from the above, in the call scene of the present embodiment, the noise reduction processing unit 200 not only can perform noise reduction processing on the ambient noise, but also can perform noise reduction on the call audio, so that the other party can clearly hear the own voice information. Meanwhile, the compensation processing unit can compensate the audio signal of the other party, so that the other party can clearly hear the sound of the other party, and the compensation processing unit can also compensate the environmental audio, so that the useful audio in the surrounding environment can be clearly heard by the other party, and the hearing-aid auxiliary effect is ensured.

As shown in fig. 7, in some embodiments, the hearing aid device further includes a first switch unit 700, and the first switch unit 700 is used for performing hearing aid compensation and noise reduction processing of wireless audio of the user in a wireless call scene.

Specifically, the first switching unit 700 includes a first signal input terminal, a first signal output terminal and a second signal output terminal, the first signal input terminal is a fixed terminal, and the first signal output terminal and the second signal output terminal are two switching terminals. The noise reduction processing unit 200 further comprises a fourth input. The first switch unit 700 has a first signal input terminal connected to the second output terminal of the wireless processing unit 300, a first signal output terminal connected to the fourth input terminal of the noise reduction processing unit 200, and a second signal output terminal connected to the second input terminal of the compensation processing unit 400. The first switch unit 700 is used to switch the wireless processing unit 300 to communicate with the noise reduction processing unit 200 and the compensation processing unit 400.

It will be appreciated that the first switching unit 700 is used to switch connections to the signal transmission lines to achieve different operating modes of the device, and that the first switching unit 700 itself may be any suitable type of switching unit to implement. For example, in some embodiments, the first switching unit 700 may be an analog switch that implements channel switching in response to a control signal of the device controller. For another example, in other embodiments, a physical operation switch may be further disposed on the housing of the hearing aid device, and the controller may implement channel switching of the first switch unit 700 in response to a touch or pressing operation of the operation switch by the user. The present disclosure is not so limited.

In some embodiments, the first switching unit 700 switches channels in response to a control signal of the controller, and specifically may be: the controller generates a control signal based on current scene information of the hearing aid device, for example, whether the device is currently in a call state, so as to switch channels of the first switch unit 700.

In one example, the usage scenario exemplifies a hearing assistance device listening to music through a bluetooth wireless connection with a smartphone. At this time, the controller of the device (for example, the bluetooth chip may be used as the device main controller) detects that the device is in the non-call state, and controls the first switch unit 700 to be connected to the compensation processing unit 400 and disconnected from the noise reduction processing unit 200. In this case, the operation principle of the apparatus is the same as that of fig. 5, and the embodiment of fig. 5 may be referred to.

In another example, a scenario is used in which the hearing aid device is wirelessly connected to the smartphone via bluetooth, while the smartphone is in a call state, i.e., a scenario in which the user makes a call via the hearing aid device. At this time, the controller of the device detects that the device is in a call state, and controls the first switching unit 700 to be connected to the noise reduction processing unit 200 and disconnected from the compensation processing unit 400. The working principle of the device is now shown in fig. 8.

Referring to fig. 8, firstly, the own side receives the audio signal 1 of the other side through the bluetooth rf antenna of the wireless processing unit 300, and the audio signal 1 reaches the noise reduction processing unit 200 through the first switch unit 700 and the channel of the noise reduction processing unit 200. The noise reduction processing unit 200 performs noise reduction processing on the audio signal 1, for example, noise reduction processing on the audio signal 1 by using the ambient noise reduction ENC. The noise reduction processing unit 200 sends the processed audio signal 1 to the compensation processing unit 400 for hearing aid compensation, and the compensation processing unit 400 performs compensation processing and digital-to-analog conversion on the audio signal 1 and then sends the audio signal to the receiver unit 500, so that the own party can hear speech information when the other party makes a call.

Next, the microphone array of the sound pickup unit 100 collects audio signals, where the collected audio signals include the audio signal 2 and the audio signal 3, and the noise reduction processing unit 200 respectively processes the audio signal 2 and the audio signal 3 after noise reduction by using different noise reduction processing manners. For example, the audio signal is processed by active noise reduction ANC and ambient noise reduction ENC to obtain the noise-reduced audio signal 2, and the audio signal 3 is processed by active noise reduction ANC and call noise reduction CVC to obtain the noise-reduced audio signal 3.

Therefore, in the embodiment, the channel switching is realized through the first switch unit 700, so that under a conversation scene, hearing aid compensation can be performed on the Bluetooth audio, noise reduction processing can be performed on the Bluetooth audio, the conversation definition of the other party is improved, and the hearing aid auxiliary effect is further ensured.

In some embodiments, the hearing aid device of the present disclosure further provides multiple signal processing modes, so that a user can select a suitable processing mode according to the current scene requirements, reduce the power consumption of the hearing aid device, and prolong the duration of the device.

Specifically, as shown in fig. 9, in the present embodiment, the hearing aid device further includes a second switch unit 600. The second switch unit 600 includes a second signal input terminal connected to the first output terminal of the noise reduction processing unit 200, a third signal output terminal connected to the third input terminal of the wireless processing unit 300, and a fourth signal output terminal connected to the second input terminal of the compensation processing unit 400.

The wireless processing unit 300 further includes a fourth output terminal, and the fourth output terminal is connected to the receiver unit 500. In this embodiment, the wireless processing unit 300 includes a radio frequency circuit (RF)310 and a first digital-to-analog conversion module (DA) 320. The rf circuit serves as an rf terminal of the antenna processing unit 300, thereby receiving or transmitting an audio signal. The first dac 320 is configured to convert the digital audio signal into an analog audio signal, so as to transmit the analog audio signal to the receiver through the fourth output terminal, so that the user can hear the sound.

It is understood that the first digital-to-analog converter 320 may be integrated with the rf circuit 310 on the same wireless processing chip, or may be a circuit module connected to the outside of the chip, which is not limited by the present disclosure.

In one example, as shown in fig. 10 (a), the wireless processing unit 300 is a bluetooth chip, and the radio frequency circuit (RF)310 and the first digital-to-analog converter 320 are integrated in the bluetooth chip.

In another example, as shown in fig. 10 (b), the first digital-to-analog converter 320 is a digital-to-analog conversion circuit module connected to the outside of the chip. The present disclosure is not so limited.

The second switching unit 600 is used to switch the signal transmission lines between the input terminal and the two output terminals, thereby providing different modes for the system. The second switching unit 600 may be any suitable type of switch to implement, for example, in some embodiments, the second switching unit 600 may be an analog switch that implements channel switching in response to a control signal of a device controller. For another example, in other embodiments, a physical operation switch can be further disposed on the housing of the hearing aid device, and the controller can implement channel switching of the second switch unit 700 in response to a touch or pressing operation of the operation switch by the user. The present disclosure is not so limited.

Next, a plurality of signal processing modes of the system according to the present embodiment will be described with reference to fig. 11 to 14.

As shown in fig. 11, in one example, the third signal output terminal of the second switching unit 600 is connected to the wireless processing unit 300, the fourth signal output terminal is disconnected from the compensation processing unit 400, and the wireless processing unit 300 is disconnected from the first switching unit 700 (not shown in the figure) and connected to the receiver unit 500.

In this example, the system is in single wireless connection mode and the compensation processing unit 400 is inactive. This mode of operation is suitable for use in situations where the user listens to music via a wireless connection, where the hearing aid behaves as a noise reducing earpiece.

As shown in fig. 12, in another example, the fourth signal output terminal of the second switching unit 600 is connected to the compensation processing unit 400, the third signal output terminal is disconnected from the wireless processing unit 300, the wireless processing unit 300 is disconnected from the first switching unit 700 (not shown in the figure), and the compensation processing unit 400 is connected to the receiver unit 500.

In this example, the system is in a single hearing aid mode, with the wireless processing unit 400 in an inactive state. The working mode is suitable for scenes that a user only wears hearing aid equipment for hearing aid and does not have wireless connection.

As can be seen from fig. 11 and 12, in the above two operation modes, the wireless processing unit 300 or the compensation processing unit 400 is in a non-operation state, so that the power consumption of the device can be reduced, and the cruising ability of the device can be prolonged.

As shown in fig. 13, in still another example, the fourth signal output terminal of the second switching unit 600 is connected to the compensation processing unit 400, the third signal output terminal is disconnected from the wireless processing unit 300, and the second signal output terminal of the first switching unit 700 is connected to the compensation processing unit 400, the first signal output terminal is disconnected from the noise reduction processing unit 200, and the compensation processing unit 400 is connected to the receiver unit 500.

In this example, the system is in a wireless signal hearing aid compensation mode, which is suitable for a scenario where a user is wearing a hearing aid to listen to music and hearing aid compensation is required for the music signal.

As shown in fig. 14, in still another example, the third signal output terminal of the second switching unit 600 is communicated with the wireless processing unit 300, the fourth signal output terminal is communicated with the compensation processing unit 400, the second signal output terminal of the first switching unit 700 is communicated with the compensation processing unit 400, and the compensation processing unit 400 is communicated with the receiver unit 500.

In this example, the system is in a talk compensation mode, which is suitable for a scenario where a user makes a call using a hearing assistance device.

With respect to the structural implementation and principles of the hearing aid device in the above examples, those skilled in the art can fully understand and implement the above description, and the detailed description of the present disclosure is omitted.

It is understood that the above examples of the present disclosure only show some examples, and those skilled in the art may also implement other operation modes by using the first switch unit 700 and the second switch unit 600 on the basis of the above embodiments, which are not enumerated in the present disclosure.

Therefore, the hearing-aid device of the embodiment of the disclosure realizes switching of multiple system modes through the switch unit, so that the working modes can be switched according to different use scenes, the power consumption of the device is reduced, and the endurance time is prolonged. And the dual-processing architecture of the noise reduction processing unit and the compensation processing unit is utilized to realize the noise reduction processing under various modes and improve the sound definition when a user listens to music or makes a call. And the compensation processing unit can carry out hearing aid compensation on the audio signal of the wireless processing unit, so that the hearing aid effect is improved.

It should be noted that, in the embodiments of the present disclosure, there is no limitation on the transmission protocol of the audio signal in the system, and any transmission protocol suitable for implementation may be used, for example, transmission protocols such as I2S, PCM, SBC, AAC, etc., which is not limited by the present disclosure. In one example, the disclosed hearing assistance devices implement audio signal transmission using the I2S bus protocol.

In some embodiments, the hearing aid device further includes a controller, where the controller is a main control chip of the device, and the controller is connected to the control ends of the first switch unit 700 and the second switch unit 600, so that the switch units can switch on or off the connection channel according to a control instruction generated by the controller. In one example, the hearing aid device is a bluetooth hearing aid device, that is, the wireless processing unit 300 is a bluetooth chip, and the bluetooth chip can also be a main control chip of the device, that is, the bluetooth chip is a controller of the device.

In some embodiments, the hearing assistance device of the present disclosure can be any type of hearing assistance device, such as hearing assistance devices in the form of a cartridge, earpiece, glasses, etc., for which the earpiece-type device can be specifically, for example, behind-the-ear, in-the-canal, deep-ear devices. The present disclosure is not so limited.

In some embodiments, the hearing aid device is further provided with an operation switch, and the operation switch can be in any form suitable for implementation, such as a physical push button, a physical toggle switch, a virtual button, a touch sensing module, and the like. The operating switch can be arranged on the shell of the hearing-aid device, so that the manual operation of a user is facilitated, and the operating switch is electrically connected with the controller of the device.

In one example, the controller may control the two signal transmission channels of the first switching unit to be switched on in response to current scene information of the device, for example, whether the device is currently in a call state. Moreover, the controller controls the connection or disconnection of the two signal transmission channels of the second switch unit according to an operation instruction generated by the user touching or pressing the operation switch, thereby implementing various operation modes in the above-described embodiments. Those skilled in the art can refer to the foregoing description, and detailed description thereof is omitted.

It should be understood that the above embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the present disclosure may be made without departing from the scope of the present disclosure.

Claims

1. A hearing assistance device, comprising:

a sound pickup unit and a receiver unit;

2. A hearing assistance device as claimed in claim 1, further comprising:

3. A hearing assistance device as claimed in claim 2, further comprising:

4. A hearing assistance device as claimed in claim 2, further comprising:

5. A hearing assistance device as claimed in claim 1,

the wireless processing unit further comprises a fourth output end, and the fourth output end is connected with the telephone receiver unit.

6. A hearing assistance device as claimed in claim 1, wherein the noise reduction processing unit comprises:

7. A hearing assistance device as claimed in claim 1, wherein the wireless processing unit comprises:

the radio frequency circuit is connected with the antenna; and

8. A hearing assistance device as claimed in claim 1, wherein the compensation processing unit comprises:

9. A hearing assistance device as claimed in claim 3, further comprising:

10. A hearing assistance device as claimed in claim 4, further comprising:

the controller is connected with the control end of the second switch unit;