CN207184790U - A kind of device of the protection hearing of adjustable reply transition high pitch - Google Patents
A kind of device of the protection hearing of adjustable reply transition high pitch Download PDFInfo
- Publication number
- CN207184790U CN207184790U CN201720900652.XU CN201720900652U CN207184790U CN 207184790 U CN207184790 U CN 207184790U CN 201720900652 U CN201720900652 U CN 201720900652U CN 207184790 U CN207184790 U CN 207184790U
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- China
- Prior art keywords
- amplifier
- high pitch
- adjustable
- microphone
- transition high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007704 transition Effects 0.000 title claims abstract description 16
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 2
- 208000016354 hearing loss disease Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Abstract
The utility model discloses a kind of device of the protection hearing of adjustable reply transition high pitch, including main control chip, microphone, preamplifier, receiver, power module and display module is characterized in that：Signal noise is transferred to preamplifier by the microphone, the preamplifier is transferred to program control AC amplifier by the signal transacting of main control chip, signal after processing is transferred to receiver by the program control AC amplifier, the program control AC amplifier includes one-chip computer module, AC amplifier and 74HC4052 modules, effectively avoid the sense of discomfort of the wear hearing aid person caused by transition high pitch and use chip controls, add display interface, easily facilitate adjustment parameter, effectively enhance its versatility, the convenience of regulation.
Description
Technical field
Audio frequency apparatus technical field is the utility model is related to, specially a kind of protection hearing of adjustable reply transition high pitch
Device.
Background technology
With the aggravation that sound pollutes in environment, the effect for the audiphone of hearing reduction person increasingly highlights.It is but right
It is few in the device of normal good hearing person's effectively protection hearing in noise circumstance.Mostly physics noise reduction was again before this for the device of in the market
By filter noise filtering, but when facing the impulse of the big volume of unexpected one, wearer will hear loudness
Very high sound, usage experience is not only reduced, can also cause the further decline of hearing even it is also possible to causing tighter
The consequence of weight.And it is difficult to solve to retain effective information in sound.
Utility model content
In order to overcome the shortcomings of prior art, the utility model provides a kind of protection of adjustable reply transition high pitch
The device of hearing, the present apparatus is it is possible to prevente effectively from the sense of discomfort of wear hearing aid person caused by transition high pitch and use chip
Control, adds display interface, easily facilitates adjustment parameter, effectively enhance its versatility, the convenience of regulation.
Technical scheme is used by the utility model solves its technical problem：A kind of guarantor of adjustable reply transition high pitch
The device of hearing is protected, including main control chip, microphone, preamplifier, receiver, power module and display module its feature exists
In：Signal noise is transferred to preamplifier, the signal transacting that the preamplifier passes through main control chip by the microphone
Program control AC amplifier is transferred to, the signal after processing is transferred to receiver by the program control AC amplifier；
The program control AC amplifier includes one-chip computer module, AC amplifier and 74HC4052 modules.
As a kind of preferable technical scheme of the utility model, the microphone uses electret-type microphone.
As a kind of preferable technical scheme of the utility model, the preamplifier is put using the microphone of MAX models
Big device, device have low noise front-end amplifier, variable gain amplifier (VGA), output amplifier, microphone bias voltage hair
Raw device and AGC control circuits.
As a kind of preferable technical scheme of the utility model, the power supply source of the power module is V batteries, can be more
Individual button cell series connection, then voltage is produced by LM chips, give other module for power supply.
As a kind of preferable technical scheme of the utility model, the display module uses OLED light emitting diodes.
As a kind of preferable technical scheme of the utility model, the receiver uses inductor loudspeaker.
Compared with prior art, the beneficial effects of the utility model are：The present apparatus is it is possible to prevente effectively from transition high pitch is drawn
Rise wear hearing aid person sense of discomfort and also use chip controls, add display interface, easily facilitate adjustment parameter, effectively
Enhance its versatility, the convenience of regulation；The present apparatus can effectively tackle the impulse of big volume, pass through programme-controlled gain electricity
Road effectively controls volume to export so that wave volume is had been in the tolerance interval of hearing aid wearer, and will not be made
Sound waveform distortion；The device can make it that usage experience is more perfect, can effectively prevent big volume impulse and user is caused
Hearing impairment and can effectively preserve information, so as to effectively protect hearing.
Brief description of the drawings
Fig. 1 is Tthe utility model system structural representation；
Fig. 2 is the utility model programme-controlled gain electrical block diagram.
In figure：1- main control chips；2- microphones；3- preamplifiers；4- receivers；5- power modules；6- shows mould
Block；The program control AC amplifiers of 7-；8- one-chip computer modules；9- AC amplifiers；10-74HC4052 modules.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment：
As shown in figure 1, the utility model provides a kind of technical solution, including main control chip 1, microphone 2, preceding storing
Signal noise is transferred to preamplifier 3, institute by big device 3, receiver 4, power module 5 and display module 6, the microphone 2
State preamplifier 3 and program control AC amplifier 7, the program control AC amplifier 7 are transferred to by the signal transacting of main control chip 1
Signal after processing is transferred to receiver 4, the program control AC amplifier 7 includes one-chip computer module 8, the He of AC amplifier 9
74HC4052 modules 10.
Programme-controlled gain circuit is added on original circuit base.After upper electricity, extraneous voice signal passes through microphone
It is changed into voltage signal, then programme-controlled gain circuit is amplified into by original amplifier, original amplifier is mainly used in
Manual adjustment wave volume, programme-controlled gain circuit are used to automatically adjust unexpected, uncertain excessive or cross small volume, be allowed to
Adapt to human ear.This can retain in noise circumstance effectively acoustic information well.Programme-controlled gain circuit has just started to make exchange put
The magnification ratio of big device is maximum (at this moment wave volume is adapted to human ear by adjusting original amplifier coefficient), together
When the voice data returned by ADC collections judge whether the sound of input meets human ear and adapt to requirement, or whether meet people
For setting range, if a certain moment has one section of sound exceed setting range suddenly, programme-control 74HC4052 selections are not
Same interface, so as to select different AC amplifier magnification ratios, reaches the purpose of gain control so that sound sound to conducting
Amount is effectively controlled in certain limit.It is also added into OLED module in circuit, is used to during production showing that various parameters are convenient and grasps
Make, debugging, various information, convenient use, regulation can be shown during use.
As shown in Fig. 2 program control AC amplifier is mainly made up of STM32C8T6, AC amplifier, 74HC4052, start
When 74HC4052 X3-Y3 interfaces to conducting, voice signal is amplified to maximum, by gain circuitry, into receiver and releases
Sound.Period STM32C8T6 chip carries out ADC samplings, and analyze data to the voice signal after amplifier, it is assumed that data are
Behaviour is the sound maximum limited when 100, represents the loud noise of processing in need by if detecting 200 higher than 100
Data then chip controls 74HC4052 cause X2-Y2 interfaces to conducting simultaneously X3-Y3 interfaces to disconnect, programme-controlled gain circuit
Gain is reduced so that the voice signal of output reduces, so as to which human ear finally hears the sound of suitable size.Here can also set
Other interfaces are to being different proportion to adapt to more situations.
Of the present utility model to be mainly characterized by, the present apparatus is it is possible to prevente effectively from wear hearing aid caused by transition high pitch
The sense of discomfort of person and chip controls are used, add display interface, easily facilitate adjustment parameter, it is general effectively to enhance its
Property, the convenience of regulation；The present apparatus can effectively tackle the impulse of big volume, and volume is effectively controlled by programme-controlled gain circuit
Output so that wave volume is had been in the tolerance interval of hearing aid wearer, and will not make sound waveform distortion；Should
Device can make it that usage experience is more perfect, can effectively prevent big volume impulse hearing impairment and energy to caused by user
It is enough effectively to preserve information, so as to effectively protect hearing.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (6)
1. a kind of device of the protection hearing of adjustable reply transition high pitch, including main control chip (1), microphone (2), preceding storing
Big device (3), receiver (4), power module (5) and display module (6) is characterized in that：The microphone (2) is by signal noise
Preamplifier (3) is transferred to, the preamplifier (3) is transferred to program control exchange by the signal transacting of main control chip (1)
Signal after processing is transferred to receiver (4) by amplifier (7), the program control AC amplifier (7)；
The program control AC amplifier (7) includes one-chip computer module (8), AC amplifier (9) and 74HC4052 modules (10).
A kind of 2. device of the protection hearing of adjustable reply transition high pitch according to claim 1, it is characterised in that：Institute
State microphone (2) and use electret-type microphone.
A kind of 3. device of the protection hearing of adjustable reply transition high pitch according to claim 1, it is characterised in that：Institute
The amplifier of microphone that preamplifier (3) uses MAX9814 models is stated, device has low noise front-end amplifier, variable increasing
Beneficial amplifier (VGA), output amplifier, microphone bias voltage generator and AGC control circuits.
A kind of 4. device of the protection hearing of adjustable reply transition high pitch according to claim 1, it is characterised in that：Institute
The power supply source for stating power module (5) is 5V batteries, is multiple button cell series connection, then produces voltage by LM1117 chips, to it
His module for power supply.
A kind of 5. device of the protection hearing of adjustable reply transition high pitch according to claim 1, it is characterised in that：Institute
State display module (6) and use OLED light emitting diodes.
A kind of 6. device of the protection hearing of adjustable reply transition high pitch according to claim 1, it is characterised in that：Institute
State receiver (4) and use inductor loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900652.XU CN207184790U (en) | 2017-07-24 | 2017-07-24 | A kind of device of the protection hearing of adjustable reply transition high pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900652.XU CN207184790U (en) | 2017-07-24 | 2017-07-24 | A kind of device of the protection hearing of adjustable reply transition high pitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184790U true CN207184790U (en) | 2018-04-03 |
Family
ID=61737500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720900652.XU Expired - Fee Related CN207184790U (en) | 2017-07-24 | 2017-07-24 | A kind of device of the protection hearing of adjustable reply transition high pitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111616733A (en) * | 2020-05-28 | 2020-09-04 | 广州爱听贝科技有限公司 | Wearable wireless auscultation device |
-
2017
- 2017-07-24 CN CN201720900652.XU patent/CN207184790U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111616733A (en) * | 2020-05-28 | 2020-09-04 | 广州爱听贝科技有限公司 | Wearable wireless auscultation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20210724 |