CN107864441B - Bluetooth chip with hearing aid function, bluetooth headset and wireless hearing aid system - Google Patents
Bluetooth chip with hearing aid function, bluetooth headset and wireless hearing aid system Download PDFInfo
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- 230000006870 function Effects 0.000 title claims abstract description 48
- 230000005236 sound signal Effects 0.000 claims description 54
- 238000001228 spectrum Methods 0.000 claims description 35
- 230000006854 communication Effects 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 25
- 230000009467 reduction Effects 0.000 claims description 15
- 206010011878 Deafness Diseases 0.000 claims description 12
- 230000001629 suppression Effects 0.000 claims description 11
- 230000010370 hearing loss Effects 0.000 claims description 9
- 231100000888 hearing loss Toxicity 0.000 claims description 9
- 208000016354 hearing loss disease Diseases 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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Abstract
The invention belongs to electronic equipment and discloses a Bluetooth chip and a Bluetooth headset with hearing aid function. The Bluetooth chip comprises a chip main body, an audio interface module is integrated in the chip main body, the audio interface module comprises an audio input unit and an audio output unit, the audio input unit is connected with a microphone, and the audio output unit is connected with a receiver. The invention solves the defect that in the prior art, a Bluetooth chip and a hearing aid chip are required to work independently and separately or work by means of a mobile phone APP.
Description
Technical Field
The invention belongs to electronic equipment and an electronic system, and particularly relates to a Bluetooth chip with a hearing aid function, a Bluetooth headset comprising the Bluetooth chip and a wireless hearing aid system.
Background
Bluetooth earphone is a common electronic product in daily life, can establish Bluetooth wireless connection with the mobile phone with Bluetooth function, and is convenient for people to answer and dial the phone or listen to music played by the mobile phone. And the device can also be connected with products such as computers, televisions and the like with Bluetooth functions to listen to music or the sound of video. The Bluetooth headset mainly comprises a Bluetooth chip, a radio frequency antenna, a microphone, a receiver, function keys, a shell and the like.
The hearing aid is an electronic product commonly used by hearing impaired people, and can perform specific processing on a sound signal according to the hearing situation of a user, so that the user can hear sounds which are originally inaudible or inaudible. The modern hearing aid mainly comprises a hearing aid chip, a microphone, a receiver, function keys, a shell and the like.
The Bluetooth hearing aid earphone combines the dual functions of the Bluetooth earphone and the hearing aid, and at present, two types of common Bluetooth hearing aid earphone on the market have two modes.
Mode one: by adopting the combination of the two functional chips, a Bluetooth chip (with the conversation and/or music functions) is used as a main chip, and a hearing aid chip is added independently to realize the hearing aid function. In order to make the bluetooth chip and the hearing aid chip work on one circuit board, an additional auxiliary circuit is added to meet the requirements of the two chips on different voltages, and a connecting circuit between the bluetooth chip and the hearing aid chip is added to realize the transmission of audio data and/or control data between the two chips.
However, the above mode one has the following problems:
the hearing chip added alone, the additional auxiliary circuitry and the connection circuitry present several problems to this solution: 1. the number of used circuit components is increased, the required circuit board is large, and the product cost is increased; 2. the power consumption of the product is increased, and a battery with larger capacity is needed for ensuring the service time; 3. the required housing volume of the headset is increased.
Mode two: adopts a scheme of combining a mobile phone and an earphone. The earphone of the scheme is not provided with a hearing aid function module, and the hearing aid function module is arranged in the mobile phone. When the hearing aid function is used, the audio signal is required to be sent to the mobile phone from the earphone through the Bluetooth connection, hearing aid related processing is carried out in the mobile phone, and the processing is then sent back to the earphone through the Bluetooth connection by the mobile phone. One variation of such a scheme is to use the microphone of the handset to pick up sound without the microphone of the headset. A common feature of such schemes is that the audio signal during hearing assistance needs to be transmitted between the headset and the handset in bluetooth fashion.
However, the above mode two has the following problems:
the hearing aid function must be realized by means of the mobile phone, and the earphone after leaving the earphone has no hearing aid function, so that the earphone is not a Bluetooth hearing aid earphone in a strict sense. In addition, the scheme has a serious delay problem, the delay is very different between different earphone and mobile phone, and often hundreds of milliseconds, so that the hearing aid function is not practical; in addition, because the audio frequency processing of the bottom layers of various mobile phones is different, the scheme can be further processed by the audio frequency unit of the bottom layer of the mobile phone after hearing aid processing is performed on the audio frequency signals, so that the actual hearing aid effect of the scheme cannot be ensured.
Disclosure of Invention
The invention aims to solve the technical problem that the Bluetooth hearing aid earphone in the prior art needs a Bluetooth chip and a hearing aid chip to work independently and separately or can work by means of a mobile phone APP.
In order to solve the technical problems, the invention adopts the following technical scheme:
a Bluetooth chip with hearing aid function comprises a chip main body, wherein an audio interface module is integrated in the chip main body, the audio interface module comprises an audio input unit and an audio output unit, the audio input unit is connected with a microphone, the audio output unit is connected with a receiver, a hearing aid module connected with the audio interface module is integrated in the chip main body, and the hearing aid module receives an audio signal input by the audio input unit, performs hearing aid processing and returns to the audio output unit.
Further, the chip main body is also integrated with a Bluetooth module, a communication module, a music module and a central control module, wherein,
the communication module is respectively connected with the Bluetooth module and the audio interface module, and is used for receiving the digital audio signals sent by the audio input unit, processing the digital audio signals and sending the processed digital audio signals to the Bluetooth module, and also processing the digital audio signals sent by the Bluetooth module and sending the processed digital audio signals to the audio output unit;
the music module is respectively connected with the Bluetooth module and the audio interface module, and the music module receives and processes the digital music signals sent by the Bluetooth module and sends the processed digital music signals to the audio output unit;
the Bluetooth module is respectively connected with the conversation module and the music module, and is used for receiving digital audio signals sent by the conversation module and sending the digital audio signals to the external terminal through the Bluetooth antenna, and receiving audio signals sent by the external terminal through the Bluetooth antenna and sending the audio signals to the conversation module, so that the conversation function is realized; on the other hand, the Bluetooth module also receives digital music signals sent by an external terminal and sends the digital music signals to the music module;
the central control module is respectively connected with the conversation module, the music module and the hearing aid module through control lines so as to select and control one of the three modules to work or all to be closed in an idle state.
Further, the hearing aid module includes: a dynamic range adjusting unit, a frequency spectrum compensating unit, a noise reducing unit and a feedback suppressing unit, wherein,
the dynamic range adjusting unit is used for converting the dynamic range of the sound heard by the normal person into the dynamic range of the sound heard by the hearing-aid user;
the frequency spectrum compensation unit is used for carrying out frequency compensation on hearing loss degrees of hearing-aid users at different frequencies;
the noise reduction unit suppresses noise in the audio signal;
the audio signals processed by the dynamic range adjusting unit, the frequency spectrum compensating unit and the noise reducing unit are sent to an audio output unit;
the feedback suppression unit performs howling suppression processing on the audio signals processed by the dynamic range adjustment unit, the frequency spectrum compensation unit and the noise reduction unit, performs subtraction operation on the audio signals input by the audio input unit, and sends the audio signals to one of the dynamic range adjustment unit, the frequency spectrum compensation unit and the noise reduction unit for advanced processing.
Further, the Bluetooth module is further connected with the dynamic range adjusting unit, the frequency spectrum compensating unit, the noise reducing unit and the feedback suppressing unit through control signal lines respectively, and receives an operation instruction of an external terminal to modify and adjust internal parameters of the dynamic range adjusting unit, the frequency spectrum compensating unit, the noise reducing unit and the feedback suppressing unit; and the Bluetooth module also transmits the data modified by each unit in the hearing aid module back to an external terminal for reference.
Further, a frequency spectrum compensation unit is further arranged in the call module and connected with the audio output unit, and is used for performing frequency compensation on the audio signal in the call process of the user.
Further, a frequency spectrum compensation unit is further arranged in the music module and connected with the audio output unit, and the frequency spectrum compensation unit is used for carrying out frequency compensation on audio signals in the process of listening to music by a user.
Further, the connection sequence among the dynamic range adjusting unit, the frequency spectrum compensating unit and the noise reducing unit is adjustable.
Further, the system also comprises a storage module which is respectively connected with the hearing aid module, the communication module and the music module so as to store the historical data of the hearing aid module, the communication module and the music module and recall the historical data.
According to a second aspect of the present invention, there is also provided a bluetooth headset having a housing in which the bluetooth chip of any one of the above aspects is built.
Based on the third aspect of the invention, a wireless hearing aid system is also provided, the hearing aid system comprises the Bluetooth headset and a mobile terminal for performing data interaction with the Bluetooth headset, and the mobile terminal performs data interaction with a Bluetooth chip in the Bluetooth headset to realize functions of conversation, music, hearing aid and the like.
Compared with the prior art, the Bluetooth chip with hearing aid function, the Bluetooth headset and the wireless hearing aid system disclosed by the invention have the following technical effects:
(1) According to the invention, the hearing aid module is added into the Bluetooth chip, so that the problem that the Bluetooth chip has no hearing aid function is solved. The specific processing units adopted in the hearing aid module, namely a dynamic range adjusting unit, a frequency spectrum compensating unit, a noise reduction unit, a feedback suppression unit and the like, provide professional hearing aid functions for users.
(2) According to the invention, by integrating the hearing aid function into the Bluetooth chip, various problems existing in the combination scheme of the two functional chips are solved, the hearing aid chip is not required to be added independently, an additional auxiliary circuit and a connecting circuit are not required, and the battery capacity is not required to be increased, so that the number of circuit components is reduced, the product cost is reduced, and the volume of the product can be made smaller.
(3) By introducing the frequency compensation unit into the communication module, the problem that the common Bluetooth headset cannot perform corresponding compensation according to the hearing loss condition of the user is solved, so that the user can clearly and comfortably hear the voice of the other party.
(4) By introducing the frequency compensation unit into the music module, the problem that the common Bluetooth headset cannot perform corresponding compensation according to the hearing loss condition of the user is solved, so that the user can experience music feeling close to normal hearing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a bluetooth chip with hearing aid function according to an embodiment of the present invention.
Fig. 2 is a diagram showing transmission of control data between each unit of the bluetooth module and the hearing aid module according to an embodiment of the present invention.
Fig. 3 is a schematic connection diagram of each functional unit inside the hearing aid module and the audio interface module in the embodiment of the invention.
Fig. 4 is a schematic diagram of an internal circuit of a hearing aid module according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1, the disclosed bluetooth chip with hearing aid function has a chip body, and a plurality of module circuits are integrated on the chip body.
From the perspective of providing a Bluetooth hearing aid function, the greatest difference between the two functional chip combination schemes in the prior art is that the earphone end does not use a separate hearing aid chip, but only uses one Bluetooth chip added with a hearing aid module, and the Bluetooth chip is not two independent chips, so that the Bluetooth hearing aid function is realized by one Bluetooth chip substantially; in addition, the invention is different from the traditional combination scheme of the mobile phone and the earphone in that the position of the hearing aid module is different, the hearing aid module in the invention is arranged in a Bluetooth chip at the earphone end, and the hearing aid module in the combination scheme of the mobile phone and the earphone is arranged in the mobile phone.
From the perspective of realizing the Bluetooth hearing-aid earphone, the greatest difference between the scheme of the patent and the scheme of combining the two functional chips is that the earphone end does not use a separate hearing-aid chip, but only uses a Bluetooth chip added with a hearing-aid module; the earphone in the combination scheme of the mobile phone and the earphone is not provided with a hearing aid module, and hearing aid functions are lost after the mobile phone leaves the mobile phone, so that the earphone in the combination scheme of the mobile phone and the earphone is not a Bluetooth hearing aid earphone in a strict sense.
The above-described modules of the embodiments of the present invention are described in detail below.
The audio interface module is respectively connected with the conversation module, the music module and the hearing aid module, the audio interface module comprises an audio input unit and an audio output unit, the audio input unit is connected with a microphone (microphone), the audio input unit converts sound signals emitted by the microphone into analog electric signals, and then the analog electric signals are converted into digital audio signals by preprocessing (including noise reduction, filtering, amplifying and other processing) and A/D conversion for processing by other modules (the conversation module and the hearing aid module). The audio output unit is connected with a receiver (earphone), and is responsible for converting digital audio signals processed by other modules (a communication module, an audio module and a hearing aid module) into analog audio electric signals through post-processing (including filtering, amplifying and the like) and D/A conversion, and finally converting the analog audio electric signals into sound signals through the receiver.
Referring to fig. 2, the hearing aid module is responsible for performing various processing on the audio signal from the audio input unit according to the specified hearing aid requirement, and then outputting the processed audio signal to the audio output unit to realize the hearing aid function. The module comprises: the device comprises a dynamic range adjusting unit, a frequency spectrum compensating unit, a noise reduction unit and a feedback suppression unit.
The dynamic range adjusting unit converts the dynamic range of the sound which can be heard by a normal person into the dynamic range of the sound which can be heard by a user, so that the user can hear small sound which cannot be heard before, and meanwhile, the user does not feel uncomfortable when hearing large sound; the frequency spectrum compensation unit can correspondingly compensate the hearing loss degree of the user at different frequencies, so that the user can more easily hear signals with corresponding frequencies; the noise reduction unit can distinguish noise and voice signals, and can inhibit the noise on the premise of almost not damaging the voice, so that the signal to noise ratio in a noise environment is improved, and better perception of voice information by a user is facilitated; the feedback suppression unit can suppress the common howling phenomenon under the hearing aid function, and the usability of the hearing aid function is improved. The hearing aid module amplifies the sound, so that the played sound can be recorded again by the microphone to form continuous cyclic amplification, and the hearing aid can generate a howling phenomenon. The feedback suppression unit generates a signal opposite to the external acoustic feedback signal in the hearing aid module, and the feedback signal in the microphone is canceled out by subtracting the signal through the subtracter.
In this embodiment, the order of setting the dynamic range adjusting unit, the spectrum compensating unit, and the noise reducing unit may be changed arbitrarily, and is not limited to the connection relationship shown in fig. 2.
Referring to fig. 3, in this embodiment, in order to adjust different parameters, four control signal lines are further provided in the bluetooth module and are respectively connected with a dynamic range adjusting unit, a spectrum compensating unit, a noise reducing unit and a feedback suppressing unit, so that the user adjusts the hearing effect of the earphone on the mobile phone APP, the mobile phone transmits the adjusting parameters to the bluetooth earphone through bluetooth transmission, after receiving the adjusting instruction, the bluetooth module in the earphone sends the adjusting parameters to the corresponding units in the hearing module, and then updates the parameters in the bluetooth module, thereby changing the hearing effect of the earphone. Likewise, each unit in the hearing aid module can send the regulated and controlled parameters to an external mobile phone through the Bluetooth module for review and inspection.
Referring to fig. 4, fig. 4 is a schematic circuit diagram of a hearing aid module according to an embodiment of the present invention. The frequency spectrum compensation unit may use an M62431FP-EQ chip to implement the frequency compensation function, the noise reduction unit may use an AS3422-S chip to implement the noise reduction function, the dynamic range adjustment unit may use a DCAP-TDA7315 chip to implement the function of adjusting the normal sound pressure range to the hearing range of the listener, the feedback suppression unit may use an FM1188 chip to implement the howling suppression function, the DCAP-TDA7315 chip and the FM1188 chip respectively have pins connected with the audio output unit and the audio input unit, and the circuit connection relationship between the above chips may be shown in the figure, so that details will not be described herein.
The Bluetooth module is respectively connected with the hearing aid module, the communication module and the music module, the Bluetooth chip is provided with a Bluetooth antenna connected with the Bluetooth module, is responsible for establishing Bluetooth connection between the Bluetooth module and an external terminal such as a mobile phone, a computer and the like, performs Bluetooth data communication, and realizes transmission of audio data and other control data between the Bluetooth chip and equipment with which Bluetooth connection is established; the audio data received by the Bluetooth module is sent to the communication module or the music module to perform communication or music playing functions, or the received control data is sent to the hearing aid module, the communication module or the music module to modify internal parameters or other configurations of the three modules, specifically, an APP can be installed on an external terminal, such as a mobile phone, and an operation instruction is transmitted through the Bluetooth module to further modify parameters of the internal module of the Bluetooth chip through operation on the APP.
The communication module is respectively connected with the Bluetooth module and the audio interface module, and is responsible for correspondingly processing audio signals in the process of receiving and making calls by the earphone, and comprises two audio sending units and two audio receiving units which can synchronously work, and simultaneously performs an audio sending process and an audio receiving process. The audio transmitting unit processes the digital audio signal from the audio input unit (including processing such as audio coding, noise reduction and echo cancellation special for communication), outputs the processed digital audio signal to the Bluetooth module, and transmits the processed digital audio signal to the device which has established Bluetooth connection with the Bluetooth module in a wireless signal mode, such as a mobile phone. The audio receiving unit receives the digital audio signal from the mobile phone transmitted by the Bluetooth module, and outputs the digital audio signal to the audio output unit after processing (including processing such as audio decoding and filtering special for communication). Thus, the real-time conversation between the two mobile terminals is realized.
As a preferred implementation mode of the invention, the communication module is also provided with a frequency spectrum compensation unit which is respectively connected with the audio output units and used for carrying out frequency compensation on the digital audio signals received in the communication process, and changing the hearing of the user to compensate, so that the user can clearly and comfortably hear the voice of the opposite party, the problem that the hearing loss degrees of the user on different frequencies are different is solved, and the user can clearly and comfortably hear the voice of the opposite party.
The music module is connected with the audio interface module and the Bluetooth module respectively, and is mainly used for listening to music, receiving the digital audio signals sent from the Bluetooth module, performing corresponding processing on the digital audio signals, such as decoding, sending the digital audio signals to an audio output unit in the audio interface module, and then performing D/A conversion on the digital signals through the audio output unit and sending the digital signals to a receiver, so that a user can listen to music.
As a preferred embodiment of the present invention, a spectrum compensation unit is also built in the music module, and is connected to the audio output unit, so that the hearing of the user is compensated, and the user can experience a music feeling close to normal hearing.
The spectrum compensation unit can be implemented by a frequency compensation circuit commonly used in the prior art, so the specific circuit structure of the spectrum compensation unit is not specifically described in this embodiment.
In this embodiment, each frequency point or frequency band in the spectrum compensation unit in the communication module and the bluetooth module is controlled and adjusted by an external terminal, specifically, the bluetooth module is connected with bluetooth through a mobile phone APP, and will execute an instruction on the mobile phone APP to modify relevant parameters in the spectrum compensation unit, and for users with different hearing loss, the frequency bands or frequency points set by the spectrum compensation unit are different.
The storage module is respectively connected with the hearing aid module, the communication module and the music module to store the historical data of the hearing aid module, the communication module and the music module and recall the historical data. The hearing aid data designated by the user can be received through the Bluetooth module, and then the data can be saved in the storage module while the parameters of the processing units in the functional modules are updated, so that the user can directly read the parameters saved before from the storage module when using the earphone next time without resetting the parameters.
The central control module is respectively connected with the conversation module, the music module and the hearing aid module through control lines so as to select and control one of the three modules to work or all to be closed in an idle state. The central control module can enable a circuit in a certain module to be in a conducting state through a key, and then the module can be controlled to work normally. In addition, the central control module can also control the Bluetooth module to be in a closed state in a hearing aid mode. Specifically, the central control module can switch four working modes, and the four modes are respectively from high to low according to priority: talk, music, hearing aid, idle. For example, when a call comes, the control module switches the earphone to a call mode no matter what mode the earphone is currently in, and when the call is ended, the control module controls the earphone to return to the mode before the call. For another example, when the earphone is in the hearing aid mode currently and the user plays the music, the control module switches the earphone to the music mode, and when the music is finished, the control module controls the earphone to return to the hearing aid mode. In addition, the control module may also control the switch of other modules, for example, in hearing aid mode, the control module may turn off the bluetooth module in order to reduce power consumption.
In a second embodiment of the present invention, there is further provided a bluetooth headset having a housing in which the bluetooth chip of the above embodiment is built, the bluetooth headset further including a microphone and a receiver connected to the audio interface module, wherein the microphone converts sound into an electrical signal to be transmitted to the audio input unit, and the receiver converts an audio signal output from the audio output unit into a sound signal.
In a third embodiment of the present invention, a wireless hearing aid system is further provided, where the hearing aid system includes the bluetooth headset according to the above scheme, and a mobile terminal that performs data interaction with the bluetooth headset, where the mobile terminal performs data interaction with a bluetooth chip in the bluetooth headset, so as to implement functions of communication, music, hearing aid, and the like, and parameter adjustment of the above modules is implemented through a bluetooth module.
Compared with the prior art, the invention solves the problem that the Bluetooth chip has no hearing aid function by adding the hearing aid module into the Bluetooth chip. The specific processing units adopted in the hearing aid module, namely a dynamic range adjusting unit, a frequency spectrum compensating unit, a noise reduction unit, a feedback suppression unit and the like, provide professional hearing aid functions for users. By integrating the hearing aid function into the Bluetooth chip, various problems existing in the combination scheme of the two functional chips are solved, the hearing aid chip is not required to be added independently, an additional auxiliary circuit and a connecting circuit are not required to be added, and the battery capacity is not required to be increased, so that the number of circuit components is reduced, the product cost is reduced, and the volume of the product can be made smaller. By introducing the frequency compensation unit into the communication module, the problem that the common Bluetooth headset cannot perform corresponding compensation according to the hearing loss condition of the user is solved, so that the user can clearly and comfortably hear the sound of the other party. By introducing the frequency compensation unit into the music module, the problem that the common Bluetooth headset cannot perform corresponding compensation according to the hearing loss condition of the user is solved, so that the user can experience music feeling close to normal hearing.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1. The Bluetooth chip with the hearing aid function comprises a chip main body, wherein an audio interface module is integrated in the chip main body, the audio interface module comprises an audio input unit and an audio output unit, the audio input unit is connected with a microphone, and the audio output unit is connected with a receiver;
the hearing aid module includes: a dynamic range adjusting unit, a frequency spectrum compensating unit, a noise reducing unit and a feedback suppressing unit, wherein,
the dynamic range adjusting unit is used for converting the dynamic range of the sound heard by the normal person into the dynamic range of the sound heard by the hearing-aid user;
the frequency spectrum compensation unit is used for carrying out frequency compensation on hearing loss degrees of hearing-aid users at different frequencies;
the noise reduction unit suppresses noise in the audio signal;
the audio signals processed by the dynamic range adjusting unit, the frequency spectrum compensating unit and the noise reducing unit are sent to an audio output unit;
the feedback suppression unit performs howling suppression processing on the audio signals processed by the dynamic range adjustment unit, the frequency spectrum compensation unit and the noise reduction unit, performs subtraction operation on the audio signals input by the audio input unit, and sends the audio signals to one of the dynamic range adjustment unit, the frequency spectrum compensation unit and the noise reduction unit for advanced processing.
2. The Bluetooth chip with hearing aid function according to claim 1, wherein the chip body is further integrated with a Bluetooth module, a call module, a music module and a central control module, wherein,
the communication module is respectively connected with the Bluetooth module and the audio interface module, and is used for receiving the digital audio signals sent by the audio input unit, processing the digital audio signals and sending the processed digital audio signals to the Bluetooth module, and also processing the digital audio signals sent by the Bluetooth module and sending the processed digital audio signals to the audio output unit;
the music module is respectively connected with the Bluetooth module and the audio interface module, and the music module receives and processes the digital music signals sent by the Bluetooth module and sends the processed digital music signals to the audio output unit;
the Bluetooth module is respectively connected with the conversation module and the music module, and is used for receiving digital audio signals sent by the conversation module and sending the digital audio signals to the external terminal through the Bluetooth antenna, and receiving audio signals sent by the external terminal through the Bluetooth antenna and sending the audio signals to the conversation module, so that the conversation function is realized; on the other hand, the Bluetooth module also receives digital music signals sent by an external terminal and sends the digital music signals to the music module;
the central control module is respectively connected with the conversation module, the music module and the hearing aid module through control lines so as to select and control one of the conversation module, the music module and the hearing aid module to work or close all of the conversation module, the music module and the hearing aid module to be in an idle state.
3. The bluetooth chip with hearing aid function according to claim 2, wherein the bluetooth module is further connected to the dynamic range adjusting unit, the spectrum compensating unit, the noise reducing unit and the feedback suppressing unit through control signal lines, respectively, and receives an operation instruction of an external terminal to modify and adjust internal parameters of the dynamic range adjusting unit, the spectrum compensating unit, the noise reducing unit and the feedback suppressing unit; and the Bluetooth module also transmits the data modified by each unit in the hearing aid module back to an external terminal for reference.
4. The bluetooth chip with hearing aid function according to claim 2, wherein the communication module is further provided with a frequency spectrum compensation unit connected with the audio output unit for performing frequency compensation on an audio signal during communication of a user.
5. The bluetooth chip with hearing aid function according to claim 2, wherein the music module is further provided with a frequency spectrum compensation unit connected with the audio output unit for performing frequency compensation on the audio signal during the process of listening to music by a user.
6. The bluetooth chip with hearing aid according to claim 3, wherein the order of connection among the dynamic range adjustment unit, the spectrum compensation unit, and the noise reduction unit is adjustable.
7. The bluetooth chip with hearing aid function according to claim 2, further comprising a storage module connected to the hearing aid module, the communication module and the music module, respectively, for storing and recalling history data of the hearing aid module, the communication module and the music module.
8. A bluetooth headset, characterized in that it has a housing, in which a bluetooth chip according to any of the preceding claims 1-7 is built.
9. A wireless hearing aid system comprising a bluetooth headset according to claim 8 and a mobile terminal for data interaction with the bluetooth headset.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307524.5A CN107864441B (en) | 2017-12-11 | 2017-12-11 | Bluetooth chip with hearing aid function, bluetooth headset and wireless hearing aid system |
| PCT/CN2018/117425 WO2019114531A1 (en) | 2017-12-11 | 2018-11-26 | Bluetooth chip having hearing aid function, bluetooth headset and wireless hearing aid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711307524.5A CN107864441B (en) | 2017-12-11 | 2017-12-11 | Bluetooth chip with hearing aid function, bluetooth headset and wireless hearing aid system |
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| CN107864441A CN107864441A (en) | 2018-03-30 |
| CN107864441B true CN107864441B (en) | 2023-10-24 |
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| CN201711307524.5A Active CN107864441B (en) | 2017-12-11 | 2017-12-11 | Bluetooth chip with hearing aid function, bluetooth headset and wireless hearing aid system |
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| Country | Link |
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| CN (1) | CN107864441B (en) |
| WO (1) | WO2019114531A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864441B (en) * | 2017-12-11 | 2023-10-24 | 北京康易聆医疗科技有限公司 | Bluetooth chip with hearing aid function, bluetooth headset and wireless hearing aid system |
| CN109246515B (en) * | 2018-10-09 | 2019-10-29 | 王青云 | A kind of intelligent earphone and method promoting personalized sound quality function |
| CN109547909A (en) * | 2018-11-30 | 2019-03-29 | 深圳市蓝蜂时代实业有限公司 | A kind of method and Bluetooth earphone system of the single Bluetooth chip realization with hearing-aid function |
| CN110191406A (en) * | 2019-05-27 | 2019-08-30 | 深圳市中德听力技术有限公司 | A kind of hearing aid with wireless transmission function |
| CN111385782A (en) * | 2020-03-09 | 2020-07-07 | 杭州惠耳听力技术设备有限公司 | Cell-phone audio frequency directly links audiphone based on wireless bluetooth technology of low-power consumption |
| CN112040383A (en) * | 2020-08-07 | 2020-12-04 | 深圳市微纳集成电路与系统应用研究院 | Hearing aid device |
| CN112218221B (en) * | 2020-10-21 | 2022-06-03 | 歌尔智能科技有限公司 | Hearing aid adapter and control method |
| CN114664322B (en) | 2022-05-23 | 2022-08-12 | 深圳市听多多科技有限公司 | Single-microphone hearing-aid noise reduction method based on Bluetooth headset chip and Bluetooth headset |
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| CN201383874Y (en) * | 2009-03-03 | 2010-01-13 | 王勇 | Wireless power supply type blue-tooth anti-noise deaf-aid |
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- 2017-12-11 CN CN201711307524.5A patent/CN107864441B/en active Active
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- 2018-11-26 WO PCT/CN2018/117425 patent/WO2019114531A1/en active Application Filing
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| CN102724360A (en) * | 2012-06-05 | 2012-10-10 | 创扬通信技术（深圳）有限公司 | Method and device for implementation of hearing-aid function of mobile phone and hearing-aid mobile phone |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019114531A1 (en) | 2019-06-20 |
| CN107864441A (en) | 2018-03-30 |
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