CN109951786A - A kind of hearing aid device system of cardinar number structured - Google Patents
A kind of hearing aid device system of cardinar number structured Download PDFInfo
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- CN109951786A CN109951786A CN201910239146.4A CN201910239146A CN109951786A CN 109951786 A CN109951786 A CN 109951786A CN 201910239146 A CN201910239146 A CN 201910239146A CN 109951786 A CN109951786 A CN 109951786A
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- aid device
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- 230000008859 change Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 206010011878 Deafness Diseases 0.000 description 9
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000010370 hearing loss Effects 0.000 description 2
- 231100000888 hearing loss Toxicity 0.000 description 2
- 208000016354 hearing loss disease Diseases 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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- 230000001755 vocal effect Effects 0.000 description 1
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Abstract
The present invention relates to electronic technology field more particularly to a kind of hearing aid device systems of cardinar number structured.A kind of hearing aid device system of cardinar number structured, which is characterized in that including a sound reception unit, the sound reception unit includes digital microphone portion and pick-up coil portion；One digital signal processing unit, the digital signal processing unit include: a data selector, are connect with the digital microphone portion and the pick-up coil portion；The digital microphone portion or the signal in the pick-up coil portion is selected to be handled under a selection on-off action.The present invention passes through setting digital microphone, it is connect with digital signal processing circuit, effectively increase the sensitivity of hearing aid microphone, expand the dynamic range compression range of hearing aid, digital signal processing circuit no longer needs separately to set analog-digital converter simultaneously, flexibility is improved, the production cost of hearing aid is reduced.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of hearing aid device systems of cardinar number structured.
Background technique
Hearing aid, which is one, facilitates hearing disabilities person's improvement dysacousis, and then improves and his conference communicative competence
Tool, unit and instrument.It is all in a broad sense effectively the various devices that sound is passed to ear to be can be seen as to help
Device is listened, says that hearing aid is exactly an electroacoustic amplifier in the narrow sense, has heard deaf person originally sound amplification by it and does not hear
Chu, the sound that can't hear, this device are exactly hearing aid.
Hearing aids today is broadly divided into simulated hearing aid and two kinds of digital deaf-aid.Wherein simulated hearing aid is regardless of patient
Hearing loss curve shape, unified amplification is carried out to sound, and digital deaf-aid is the hearing loss curve according to patient
Shape is precisely compensated for, so digital deaf-aid compares mould to the compensation effect of hearing and the residual hearing protection effect of patient
Quasi- hearing aid is good.
The prior art of digital deaf-aid is connect using simulation microphone with digital signal processing circuit, but traditional mould
Compatible lower, the mould of the simulation microphone of digital signal processing circuit and outside in the digital deaf-aid of quasi- electret structure
The sensitivity of quasi- microphone is higher, and equivalent output noise is smaller, and wide dynamic range is smaller.The hearing of each hearing aid user by
Damage situation is different, and there is also differences for remaining sense of hearing dynamic range, and the wide dynamic range of digital deaf-aid is smaller, can fit
The hearing disabilities crowd answered is fewer, or even can also damage the remaining sense of hearing of original of user.
Summary of the invention
The object of the present invention is to provide a kind of hearing aid device systems of cardinar number structured, solve the above technical problem.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of hearing aid device system of cardinar number structured, wherein including,
One sound reception unit, the sound reception unit include digital microphone portion and pick-up coil portion；
One digital signal processing unit, the digital signal processing unit include:
One data selector is connect with the digital microphone portion and the pick-up coil portion, selects on-off action in one
The lower signal for selecting the digital microphone portion or the pick-up coil portion is handled.
Preferably, the digital signal processing unit further includes a wide dynamic range compressor, the wide dynamic range pressure
Contracting device carries out output violent change to digital signal.
Preferably, the digital microphone portion includes a main microphon, a main microphon analog-digital converter, an auxiliary microphone
With a secondary microphone analog-digital converter, the main microphon is connect with the main microphon analog-digital converter, the secondary microphone
It is connect with the secondary microphone analog-digital converter, the main microphon is placed in front of the auxiliary microphone and a spacing is arranged
From.
Preferably, the pick-up coil portion includes a pick-up coil and a solenoid, and the pick-up coil is wound in described
On solenoid, by the induction to variable magnetic field, telephone audio inductive signal is picked up, is generated and the consistent electric signal of sound.
Preferably, the digital signal processing unit further includes having an electrification reset circuit, the electrification reset circuit with
The switch button of hearing aid connects.
Preferably, the data selector is also connected with a microphone pick-up coil switching circuit, the microphone pickup
Coil switching circuitry and selection switch connect.
The utility model has the advantages that due to using the technology described above, the present invention is by setting digital microphone, with Digital Signal Processing
Circuit connection effectively increases the sensitivity of hearing aid microphone, expands the dynamic range compression range of hearing aid, while number
Signal processing circuit no longer needs separately to set analog-digital converter, improves flexibility, reduces the production cost of hearing aid.
Detailed description of the invention
Fig. 1 is a kind of circuit connection diagram of specific embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
Referring to Fig.1, a kind of hearing aid device system of cardinar number structured, wherein including,
One sound reception unit 1, sound reception unit 1 include digital microphone portion 11 and pick-up coil portion 12；
One digital signal processing unit 2, digital signal processing unit 2 include:
One data selector 21, connect with digital microphone portion 11 and pick-up coil portion 12, acts in a selection switch 23
The signal in lower selection digital microphone portion 11 or pick-up coil portion 12 is handled.
As a kind of preferred embodiment of the invention, digital signal processing unit 2 further includes wide dynamic range compression
Device 24, wide dynamic range compressor 24 carry out output violent change to digital signal.
Wide dynamic range compressor 24 equably compresses entire dynamic range for speech according to the needs of wearer in proportion
To within the sense of hearing dynamic range of patient remnants.Such as when giving the voice input of 50dB, wide dynamic range compressor starts
Work guarantees that the gain of hearing aid is 35dB；When giving the voice input of 65dB, the gain of hearing aid becomes 25dB；And work as
When input acoustical signal increases to 80dB, hearing aid is only given the amplification of 15dB.As the increase of vocal input intensity (is increased to from 50dB
80dB), the amplitude of acoustic gain is reduction (reducing to 15dB from 35dB), so that voice output only increases from 85dB to 95dB, to guarantee
The most comfortable that amplified acoustic signal intensity is in patient always is listened in range.
As a kind of preferred embodiment of the invention, digital microphone portion 11 includes a main microphon 111, a main Mike
Wind analog-digital converter 113, an auxiliary microphone 112 and a secondary microphone analog-digital converter 114, main microphon 111 and main microphon
Analog-digital converter 113 connects, and secondary microphone 112 is connect with secondary microphone analog-digital converter 114, and main microphon 111 is placed in auxiliary
112 front of microphone and setting certain distance.
By taking single-chip microcontroller as an example, the input and output pin of most of microprocessors all has analog-digital conversion function, and the present invention adopts
It is bonded sound reception unit 1 with digital microphone portion 11 and pick-up coil portion 12, digital microphone portion 11 is due to built-in mould
Number converter is to direct output digit signals, the electric signal that pick-up coil portion 12 generates also output signal in a digital manner, this
Sample just simplifies the structure setting of digital signal processing unit 2, reduces power consumption, improves the flexibility of device connection, also drops
The low production cost of hearing aid.
Compared with simulating microphone, sensitivity is higher for the sensitivity of main digital microphone 111 and auxiliary digital microphone 112,
In conjunction with analog-digital converter preferably, low in energy consumption.
As a kind of preferred embodiment of the invention, pick-up coil portion 12 includes a pick-up coil 121 and a solenoid
122, pick-up coil 121 is wound on solenoid 122, by the induction to variable magnetic field, is picked up telephone audio inductive signal, is produced
The raw and consistent electric signal of sound.
As a kind of preferred embodiment of the invention, digital signal processing unit 2 further includes having an electrification reset circuit
25, electrification reset circuit 25 is connect with the switch button 26 of hearing aid.
As a kind of preferred embodiment of the invention, data selector 21 is also connected with microphone pick-up coil switching
Circuit 22, microphone pick-up coil switching circuit 22 are also connect with selection switch 23.
M grades and T grades are provided on selection switch 23, when selection switch 23 is placed in T grades, pick-up coil 121 can be picked up
Around electromagnetic signal and convert it to electric signal and amplify；When selection switch 23 be placed in M grades, 111 He of digital microphone
Digital microphone 112 will receive the acoustical signal of surrounding and convert it to digital signal.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (6)
1. a kind of hearing aid device system of cardinar number structured, which is characterized in that including,
One sound reception unit, the sound reception unit include digital microphone portion and pick-up coil portion；
One digital signal processing unit, the digital signal processing unit include:
One data selector is connect with the digital microphone portion and the pick-up coil portion, is selected under a selection on-off action
The signal for selecting the digital microphone portion or the pick-up coil portion is handled.
2. a kind of hearing aid device system of cardinar number structured according to claim 1, which is characterized in that at the digital signal
Reason unit further includes a wide dynamic range compressor, and the wide dynamic range compressor carries out output violent change to digital signal.
3. a kind of hearing aid device system of cardinar number structured according to claim 1, which is characterized in that the digital microphone
Portion includes a main microphon, a main microphon analog-digital converter, an auxiliary microphone and a secondary microphone analog-digital converter, the master
Microphone is connect with the main microphon analog-digital converter, and the secondary microphone is connect with the secondary microphone analog-digital converter,
The main microphon is placed in front of the auxiliary microphone and certain distance is arranged.
4. a kind of hearing aid device system of cardinar number structured according to claim 1, which is characterized in that the pick-up coil portion
Including a pick-up coil and a solenoid, the pick-up coil is wound on the solenoid, by the induction to variable magnetic field,
Telephone audio inductive signal is picked up, is generated and the consistent electric signal of sound.
5. a kind of hearing aid device system of cardinar number structured according to claim 1, which is characterized in that at the digital signal
Managing unit further includes having an electrification reset circuit, the switch button connection of the electrification reset circuit and hearing aid.
6. a kind of hearing aid device system of cardinar number structured according to claim 1, which is characterized in that the data selector
It is also connected with a microphone pick-up coil switching circuit, the microphone pick-up coil switching circuit and selection switch connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239146.4A CN109951786A (en) | 2019-03-27 | 2019-03-27 | A kind of hearing aid device system of cardinar number structured |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239146.4A CN109951786A (en) | 2019-03-27 | 2019-03-27 | A kind of hearing aid device system of cardinar number structured |
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| CN109951786A true CN109951786A (en) | 2019-06-28 |
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| CN201910239146.4A Pending CN109951786A (en) | 2019-03-27 | 2019-03-27 | A kind of hearing aid device system of cardinar number structured |
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| CN1612641A (en) * | 2003-06-03 | 2005-05-04 | 优利康听力有限公司 | Automatic magnetic detection in hearing aids |
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2019
- 2019-03-27 CN CN201910239146.4A patent/CN109951786A/en active Pending
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| CN1612641A (en) * | 2003-06-03 | 2005-05-04 | 优利康听力有限公司 | Automatic magnetic detection in hearing aids |
| CN1794885A (en) * | 2004-07-02 | 2006-06-28 | 桑尼奥荷兰有限公司 | Microphone assembly comprising magnetically activable element |
| CN1842225A (en) * | 2005-03-29 | 2006-10-04 | 奥迪康有限公司 | Hearing aid for recording data and studing through the data |
| CN101263736A (en) * | 2005-08-31 | 2008-09-10 | 西门子测听技术有限责任公司 | Receiver |
| CN201185480Y (en) * | 2008-04-11 | 2009-01-21 | 王永华 | Digital customization intra ear hearing aid |
| CN101695148A (en) * | 2009-10-23 | 2010-04-14 | 中国科学院声学研究所 | Multi-channel wide dynamic range compressing system for digital hearing aid |
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