CN203748008U - Bluetooth double-ear hearing aid device - Google Patents
Bluetooth double-ear hearing aid device Download PDFInfo
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- CN203748008U CN203748008U CN201420118718.6U CN201420118718U CN203748008U CN 203748008 U CN203748008 U CN 203748008U CN 201420118718 U CN201420118718 U CN 201420118718U CN 203748008 U CN203748008 U CN 203748008U
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- hearing aid
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- aid device
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- 238000002955 isolation Methods 0.000 claims description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 4
- 229910001416 lithium ion Inorganic materials 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 210000005069 ears Anatomy 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 description 10
- 206010011878 Deafness Diseases 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 208000016354 hearing loss disease Diseases 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 210000000613 ear canal Anatomy 0.000 description 3
- 231100000888 hearing loss Toxicity 0.000 description 3
- 230000010370 hearing loss Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 208000032041 Hearing impaired Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 240000005561 Musa balbisiana Species 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 231100000895 deafness Toxicity 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model relates to a type relates to bluetooth ears hearing aid device comprises eight parts: the system comprises a sound pick-up module (1), an audio signal processing module (2), a dual-channel power amplifier module (3), a Bluetooth SRC audio information source module (4), a power management module (5), a battery module (6), a shell (7) and a stereo Bluetooth earphone (8); the sound pick-up module (1), the audio signal processing module (2), the dual-track power amplifier module (3) and the Bluetooth SRC audio signal source module (4) are connected in sequence respectively to form an audio signal circuit; the power supply management module (5) and the battery module (6) form a power supply circuit; and the amplified left and right channel differential signals are transmitted to a stereo Bluetooth earphone (8) and played, so that the binaural hearing aid is realized.
Description
Technical Field
The utility model relates to a bluetooth ears hearing aid device belongs to hearing aid device's technical field.
Background
Hearing function deterioration in the elderly is a common phenomenon and increases year by year with age. An electronic hearing aid is generally used for people who have no medical treatment available, and is a small sound amplifying device used by hearing-impaired people and used for compensating hearing loss. Since 1878, the first carbon hearing aid was invented by the american scientist Bell. Hearing aids have been developed over a hundred years and are now popular primarily in the form of boxes, glasses, behind-the-ear, custom, concealed, open, standard ear canals and other types.
The box-type hearing aids are used by children and the old, have larger volume, can be provided with a plurality of function adjusting switches, provide better acoustic performance, and can be easily manufactured into a high-power type so as to meet the requirements of serious deafness children. And because of the large volume and easy manufacture, the device has low price, is popular with deaf patients and is often the first choice of entry-level machines. The main machine of the hearing aid is similar to a cigarette box in volume and is hung in a small bag in front of the chest or a pocket, the main machine is connected with an earphone through a lead and is inserted into an external auditory canal for use, and the main defect is that the lead is long and is not attractive and inconvenient. Moreover, the hearing aids are generally designed in a single-channel mode, the inconsistency of the hearing abilities of the ears of deaf patients is not considered, and the hearing aids cannot be used for listening to the ears even though a stereo earphone is inserted. Not only is the speech recognition rate low, but also the long-term single-ear hearing aid can generate a hearing deprivation effect, so that the hearing impairment becomes more serious.
Behind-the-ear hearing aids are used by adults in many cases, and these hearing aids are shaped like banana curbs, generally about 4 to 5cm long, lying behind the ear. The receiver opening is connected with a sound guiding hook made of hard plastic tube, and the sound guiding hook is hung at the root of the upper edge of the auricle, so that the hook is put into the concha cavity and the ear canal for hearing aid through the plastic tube and the ear mold earplug. When the hair-care product is worn, the hair-care product is hidden behind the ears and is often not found by the outsiders, and the psychological requirements of the deaf people can be met. However, the opening of the receiver is too close to the sound pick-up, so that the phenomenon of 'howling' is easy to occur, and a wearer feels uncomfortable and even feels mentally contradictory. In addition, all the function adjusting switches are integrated in the hearing aid, and the main machine is hung on the upper edge of the auricle when the hearing aid is used, so that the operation is inconvenient. And the hearing aids have limited load bearing capacity of ears, are usually small, and have the advantage of convenient hiding, but for the old, functional adjusting switches, battery compartment doors and the like on the hearing aids need to be frequently operated, so that the sizes of parts are too small, and the operation is extremely inconvenient.
Other types of hearing aids are expensive due to their small size or customized nature, and are not as versatile as box and behind-the-ear type hearing aids.
On the other hand, bluetooth technology has rapidly developed in recent years, which is a radio technology supporting short-range communication (generally within 10 meters) of devices. Through the Bluetooth technology, wireless information exchange can be carried out among a plurality of devices including mobile phones, PDAs, wireless earphones, notebook computers, related peripheral devices and the like. Compared with other wireless technologies, the radiation of the bluetooth technology is small, and the bluetooth technology works in the global ISM (i.e. industrial, scientific, medical) frequency band of 2.4 GHz. On the other hand, the Bluetooth earphone applies the Bluetooth technology to the hands-free earphone, so that the user can avoid the wire stumbling. At present, the Bluetooth headset is very popular, dozens of yuan can be bought to obtain the Bluetooth headset with an A2DP stereo protocol, the ergonomics is well made, the comfort level of single and double ears during long-term wearing is good, and the appearance is attractive and fashionable. No binaural hearing aid device is known for use with such devices.
Disclosure of Invention
The utility model aims at providing a bluetooth ears hearing aid device in order to overcome the defect that above-mentioned audiphone prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a bluetooth binaural hearing aid device, comprising eight parts: the system comprises a sound pick-up module (1), an audio signal processing module (2), a dual-channel power amplifier module (3), a Bluetooth SRC audio source module (4), a power management module (5), a battery module (6), a shell (7) and a stereo Bluetooth headset (8); the sound pick-up module (1), the audio signal processing module (2), the dual-track power amplifier module (3) and the Bluetooth SRC audio signal source module (4) are connected in sequence respectively to form an audio signal circuit; the power supply management module (5) and the battery module (6) form a power supply circuit;
the pickup module (1) collects environmental sounds and sends the environmental sounds to the audio signal processing module (2), and noise reduction processing and differential signal processing are sequentially carried out on the audio signals; then the left and right sound channel differential signals are amplified by a dual-sound channel power amplification module (3) respectively; the dual-track power amplifier module (3) is connected with the audio input end of the Bluetooth SRC audio information source module (4); the Bluetooth SRC audio frequency information source module (4) is used as a master device of a piconet, searches a stereo Bluetooth earphone (8) within a range of 10 meters and establishes wireless audio frequency data connection of an ACL asynchronous link by default; and the amplified left and right channel differential signals are transmitted to a stereo Bluetooth earphone (8) and played, so that the binaural hearing aid is realized.
1 to 2 electret microphones are arranged in the sound pickup module (1).
The audio signal processing module (2) comprises 2 to 3 independent noise reduction circuits (9) and differential signal processing circuits (10) which are respectively configured with different parameter components, 1 of the noise reduction circuits (9) is switched and selected by an audio switch (11) when the audio signal processing module works, the analog audio signal is subjected to noise reduction processing, and then the analog audio signal is converted into differential audio signals of a left channel and a right channel through the differential signal processing circuits (10) and then output.
The dual-channel power amplifier module (3) contain 2 sets of independent analog audio signal amplifier circuits, 2 drive plate potentiometers are used for respectively and independently adjusting the volume of the left and right channels, 1 AUX audio interface of 2.5mm is connected with the output end of the audio signal processing module (2) and used for externally connecting analog audio output of third-party media (television accompanying sound, MP3 music, radio, telephone and the like), and 1 AUX audio interface of 3.5mm is connected with the audio input end of the Bluetooth SRC audio information source module (4) and used for providing audio output under the conditions of Bluetooth earphone failure, low electric quantity and the like and used for standby wired earphones.
The Bluetooth SRC audio source module (4) is an audio source end Bluetooth module supporting an A2DP framework protocol, and comprises an audio codec and a voice processing DSP module supporting the A2DP, 1 LED pairing indicator lamp displaying the current pairing state, and 1 button for Bluetooth pairing.
The power management module (5) comprises: a signal isolation circuit (12) and a charge-discharge protection circuit (13).
The battery module (6) is characterized in that: one of lithium ion polymer battery, lithium ion battery, nickel-hydrogen battery, nickel-cadmium battery, lead-acid battery and zinc-manganese battery.
The stereo Bluetooth headset (8) is characterized in that: a commercially available stereo two-channel bluetooth headset supporting the A2DP framework protocol.
The signal isolation circuit (12) is used for isolating power supplies of the Bluetooth SRC audio signal source module (4) and the dual-channel power amplifier module (3) so as to eliminate signal interference between the modules caused by a common ground wire.
The charge and discharge protection circuit (13) is connected with the battery module (6) and comprises: 1 toggle power switch, 1 to 4 LED indicator lamps for displaying the electric quantity state, and 1 Micro-USB or Mini-USB power charging interface, wherein an external power supply is allowed to input 4 to 6V voltage and 50 to 1000mA current; 1 USB or Mini-USB power output interface, which allows the output of 4-6V voltage and 10-500mA current to the load.
Compared with the prior art, the utility model has the advantages of it is following:
1. the Bluetooth technology which is harmless to human bodies is used, so that the wireless performance of the box type hearing aid is realized, and the box type hearing aid is convenient to carry and use;
2. the distance between the sound pick-up and the loudspeaker is widened by using the Bluetooth technology, so that howling of the behind-the-ear hearing aid is avoided;
3. because the utility model is not needed to be worn on the auricle, the volume of the utility model is not limited, and the size design of the components such as function adjustment is flexible;
4. the earphone is matched with a commercially available stereo Bluetooth earphone with mature technology for use, so that the development cost of the whole earphone is low, and the earphone is comfortable to wear by one ear and two ears;
5. the hearing loss eliminating device is worn by two ears, the volume of the two ears can be freely adjusted by a user, and the hearing loss effect is eliminated to the maximum extent;
6. the utility model provides a USB or Mini-USB interface of power output can charge for bluetooth headset at any time, increases duration.
Drawings
Fig. 1 is a functional schematic diagram of the present invention.
Fig. 2 is a block diagram of the present invention.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings: fig. 1 shows a bluetooth binaural hearing aid device. The utility model discloses gather the sound of external environment, after a series of audio frequencies such as processing of making an uproar, difference signal processing, independent dual track power amplification are handled, send away audio signal through bluetooth. After being matched with a commercially available stereo Bluetooth headset (8), the function of binaural hearing aid can be realized.
The user is using for the first time the utility model discloses the time, need pair with stereo bluetooth headset (8). First, a power switch is turned on, a power indication LED on the machine body is lightened and displays the condition of approximate electric quantity, and an LED pairing indicator lamp flickers to indicate that the machine body is not paired currently. The user tunes a commercially available stereo two-channel bluetooth headset to a pairing mode. The user presses the dedicated button of bluetooth pairing on the fuselage again, and afterwards, LED pairs the pilot lamp and stops the scintillation, accomplishes to pair promptly. At this time, the bluetooth headset makes a sound. The user can adjust the volume of the left ear and the right ear according to the hearing condition of the user.
After the use, the power switch is directly closed to complete the shutdown. Through inserting the Mini-USB plug, can be right the utility model discloses charge.
The user reuses the utility model discloses the time, directly open the utility model discloses a switch to open stereo bluetooth headset (8) and can realize the wireless connection between equipment.
The utility model discloses with stereo bluetooth headset (8) between do not have the requirement of switching on and shutting down priority order.
Fig. 2 shows the structure and interconnection between the modules according to the present invention.
The utility model discloses mainly constitute by 7 parts: the system comprises a sound pick-up module (1), an audio signal processing module (2), a dual-channel power amplifier module (3), a Bluetooth SRC audio information source module (4), a power management module (5), a battery module (6) and a shell (7).
The utility model relates to an audio signal processing scheme, marked by the dotted line arrow in fig. 2, divide into three steps and realize:
the sound pickup module (1) collects environmental sound and sends the environmental sound to the audio signal processing module (2), and the noise reduction processing and the differential signal processing are sequentially carried out on the audio signal. The audio signal processing module (2) comprises 2 to 3 independent noise reduction circuits (9) and differential signal processing circuits (10) which are respectively configured with different parameter components, 1 of the noise reduction circuits (9) is switched and selected by an audio switch (11) when the audio signal processing module works, the analog audio signal is subjected to noise reduction processing, and then the analog audio signal is converted into differential audio signals of a left channel and a right channel through the differential signal processing circuits (10) and then output;
the left and right track differential signals are amplified by the dual track power amplification module (3) respectively. The dual-channel power amplifier module (3) comprises 2 sets of independent analog audio signal amplifying circuits, and a user can independently adjust the volume of the left and right channels respectively through 2 dial potentiometers in the amplifying circuits so as to adapt to the requirement of two ears on inconsistent volume. The module comprises 1 AUX audio interface with 2.5mm which is connected with the output end of the audio signal processing module (2) and can be used for outdoor connection with analog audio output by third-party media (television accompanying sound, MP3 music, radio, telephone and the like). The Bluetooth headset comprises 1 AUX audio interface with the length of 3.5mm, which is connected with an audio input end of a Bluetooth SRC audio source module (4) and used for providing audio output under the conditions of Bluetooth headset failure, low electric quantity and the like for standby wired headsets;
[ third step ] binaural power amplifier module (3) is connected with the audio input end of bluetooth SRC audio information source module (4), and amplified left and right channel differential signals are transmitted to stereo bluetooth earphones (8) through the bluetooth SRC audio information source module (4) and played, so that binaural hearing aid is realized. The Bluetooth SRC audio information source module (4) is used as a master device of a piconet, searches a stereo Bluetooth headset (8) within a range of 10 meters and establishes wireless audio data connection of an ACL asynchronous link by default; and the amplified left and right channel differential signals are transmitted to a stereo Bluetooth earphone (8) and played, so that the binaural hearing aid is realized.
The utility model relates to a power supply scheme, marked by thick solid line arrow in fig. 2, has following 3 characteristics:
1. the utility model discloses a battery module (6) are preferred to be the lithium cell, are connected by power management module (5), provide charge-discharge management. And the other modules are all provided with 5V direct current by a power management module (5). The power management module (5) comprises a signal isolation circuit (12) and a charge-discharge protection circuit (13);
2. the signal isolation circuit (12) isolates power signals of the Bluetooth SRC audio signal source module (4) and the dual-channel power amplifier module (3) respectively so as to eliminate signal interference between the modules caused by a common ground wire;
3. the charge-discharge protection circuit (13) is connected with the battery module (6) and comprises: 1 toggle power switch, 1 to 4 LED indicator lamps for displaying the electric quantity state, and 1 Micro-USB or Mini-USB power charging interface, wherein an external power supply is allowed to input 4 to 6V voltage and 50 to 1000mA current; 1 USB or Mini-USB power output interface allows a load to output 4-6V voltage and 10-500mA current, and a stereo Bluetooth headset (8) can be charged through the interface.
Claims (10)
1. A bluetooth binaural hearing aid device, characterized by eight parts: the system comprises a sound pick-up module (1), an audio signal processing module (2), a dual-channel power amplifier module (3), a Bluetooth SRC audio information source module (4), a power management module (5), a battery module (6), a shell (7) and a stereo Bluetooth earphone (8); the sound pick-up module (1), the audio signal processing module (2), the dual-track power amplifier module (3) and the Bluetooth SRC audio signal source module (4) are connected in sequence respectively to form an audio signal circuit; the power supply management module (5) and the battery module (6) form a power supply circuit.
2. The bluetooth binaural hearing aid device according to claim 1, characterized in that 1 to 2 electret microphones are provided in the microphone module (1).
3. The bluetooth binaural hearing aid device according to claim 1, wherein the audio signal processing module (2) comprises 2 to 3 independent noise reduction circuits (9) and difference signal processing circuits (10) respectively configured with components with different parameters.
4. The bluetooth binaural hearing aid device according to claim 1, wherein the binaural hearing aid device comprises 2 sets of independent analog audio signal amplification circuits, 2 dial potentiometers for independently adjusting the volume of the left and right channels, 1 2.5mm AUX audio interface connected to the output end of the audio signal processing module (2), and 1 3.5mm AUX audio interface connected to the audio input end of the bluetooth SRC audio source module (4).
5. The bluetooth binaural hearing aid device according to claim 1, wherein the bluetooth SRC audio source module (4) is an audio source bluetooth module supporting an A2DP framework protocol, and comprises an audio codec and a voice processing DSP module supporting an A2DP framework protocol, 1 LED pairing indicator light for displaying pairing status, and 1 bluetooth pairing key.
6. A bluetooth binaural hearing aid device according to claim 1, characterized in that said power management module (5) comprises: a signal isolation circuit (12) and a charge-discharge protection circuit (13).
7. The bluetooth binaural hearing aid device according to claim 1, characterized in that said battery module (6) is: one of lithium ion polymer battery, lithium ion battery, nickel-hydrogen battery, nickel-cadmium battery, lead-acid battery and zinc-manganese battery.
8. A bluetooth binaural hearing aid device according to claim 1, characterised in that said stereo bluetooth headset (8) is: commercially available stereo two-channel bluetooth headsets supporting the A2DP framework protocol.
9. The bluetooth binaural hearing aid device according to claim 6, wherein the signal isolation circuit (12) isolates power signals of the bluetooth SRC audio source module (4) and the binaural power amplifier module (3), respectively.
10. A Bluetooth binaural hearing aid device according to claim 6, characterized in that said charge-discharge protection circuit (13) is connected to a battery module (6), comprising: 1 toggle power switch, 1 to 4 LED indicator lamps for displaying the electric quantity state, and 1 Micro-USB or Mini-USB power charging interface, wherein an external power supply is allowed to input 4 to 6V voltage and 50 to 1000mA current; 1 USB or Mini-USB power output interface, which allows the output of 4-6V voltage and 10-500mA current to the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118718.6U CN203748008U (en) | 2014-03-17 | 2014-03-17 | Bluetooth double-ear hearing aid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118718.6U CN203748008U (en) | 2014-03-17 | 2014-03-17 | Bluetooth double-ear hearing aid device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203748008U true CN203748008U (en) | 2014-07-30 |
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ID=51347755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118718.6U Expired - Fee Related CN203748008U (en) | 2014-03-17 | 2014-03-17 | Bluetooth double-ear hearing aid device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203748008U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105812970A (en) * | 2015-01-16 | 2016-07-27 | 陈光超 | External electronic ear device and artificial ear implantation device |
| CN106028245A (en) * | 2016-07-26 | 2016-10-12 | 长春大学 | Life assistance device for hearing-impaired people |
| CN106797518A (en) * | 2014-09-15 | 2017-05-31 | 索诺瓦公司 | Hearing aid system and method |
-
2014
- 2014-03-17 CN CN201420118718.6U patent/CN203748008U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106797518A (en) * | 2014-09-15 | 2017-05-31 | 索诺瓦公司 | Hearing aid system and method |
| CN106797518B (en) * | 2014-09-15 | 2019-11-12 | 索诺瓦公司 | Hearing aid system and method |
| CN105812970A (en) * | 2015-01-16 | 2016-07-27 | 陈光超 | External electronic ear device and artificial ear implantation device |
| CN106028245A (en) * | 2016-07-26 | 2016-10-12 | 长春大学 | Life assistance device for hearing-impaired people |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20150317 |
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| EXPY | Termination of patent right or utility model |