CN1791283B - Nasal bone conduction hearing aid - Google Patents
Nasal bone conduction hearing aid Download PDFInfo
- Publication number
- CN1791283B CN1791283B CN 200410101471 CN200410101471A CN1791283B CN 1791283 B CN1791283 B CN 1791283B CN 200410101471 CN200410101471 CN 200410101471 CN 200410101471 A CN200410101471 A CN 200410101471A CN 1791283 B CN1791283 B CN 1791283B
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- Prior art keywords
- hearing aid
- nasal bone
- bone conduction
- conduction hearing
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- 210000000537 nasal bone Anatomy 0.000 title abstract description 33
- 210000003027 ear inner Anatomy 0.000 abstract description 8
- 230000010355 oscillation Effects 0.000 abstract description 8
- 230000005236 sound signal Effects 0.000 abstract description 5
- 230000003534 oscillatory effect Effects 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 25
- 239000011521 glass Substances 0.000 description 22
- 210000001331 nose Anatomy 0.000 description 22
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000008054 signal transmission Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 210000000959 ear middle Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 210000000613 ear canal Anatomy 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 208000016354 hearing loss disease Diseases 0.000 description 2
- 230000001537 neural effect Effects 0.000 description 2
- 208000008454 Hyperhidrosis Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
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- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The disclosed nasal bone conduction hearing aid comprises: a tuning and control equipment to receive and treat external sound signal, a bone-skin conduction oscillation device with an oscillator to receive the signal from former equipment, and a carrier device on nasal part to bear said devices and make said oscillator close contact the nasal bone skin and convert the electric wave received by said oscillation device into oscillatory wave to send to nasal part and into inner ear.
Description
Technical field
The invention relates to a kind of nasal bone conduction hearing aid, refer to a kind of nasal bone conduction hearing aid that external sound is conducted to inner ear by the nasal bone oscillator especially.
Background technology
According to ENT doctor's analysis, dysaudia has conductive hearing impairment, and the neural dysaudia two big classes of phonosensitive, if above-mentioned two classes are all had problem person, then is called Combination dysaudia.The patient of the neural dysaudia of phonosensitive is fit to use air transmitted formula hearing aids, but air transmitted formula hearing aids but is not suitable for the patient of conductive hearing impairment, and only ossiphone can help the patient of this type; Air transmitted formula hearing aids must use under structures such as external auditory meatus and middle ear ear-drum, phonophore are good, and ossiphone is constructed destroyed patient's particularly suitable for middle ear or ankylotia or middle ear.
The Taiwan patent of invention is announced No. 463517 and is disclosed the micropkonic biography receiver unit of a kind of use bone conduction type, it has bone conduction type loudspeaker portion, microphone portion and drive circuit incorporating section, and can be connected on telephone set or the wireless set, and above-mentioned bone conduction type loudspeaker portion, constitute when above-mentioned microphone portion is positioned over the mouth, form can amplexiform in any position configuration on the face.But, amplexiform in the configuration of any position on the face and may not have the effect of bone conduction.
Generally be used to assist the air transmitted formula hearing aids of dysacousis personage hearing, can be divided into the duct-type hearing aids with behind ear type hearing aid, the profile of this duct-type hearing aids is the ear canal aperture shape that is shaped to adaptive human body ear, in use, with the direct driving fit of this duct-type hearing aids ground connector in duct, can be used for auxiliary wearer and strengthen the ability that receives sound, and this behind ear type hearing aid, then be to be hooked between human body ear and head, front end has the earplug that is used to plug at the ear canal aperture place and can changes cleaning, and the rear end has the control body that abuts in behind the ear and between the head, and this controls this physical efficiency with sound intensity after by in this earplug feeding duct.
Yet, above-mentioned duct-type hearing aids is because of filling in duct with hearing aids, and the necessary cleaning that keeps hearing aids, need usually to clean, in order to avoid duct infection inflammation, though and this behind ear type hearing aid improves the shortcoming of duct-type hearing aids, behind ear type hearing aid imports sound in the ear by air, often causes the excessive phenomenon of noise.
The osteoacusis formula glasses type hearing aids that another is known, the ear rearward end that oscillator is placed on frame is with reception sound, but owing to use for a long time, Glasses earpiece can become flexible and can't fit with otica, makes the effect of hearing aid greatly reduce; Simultaneously, the patient must use this glasses that designed moulding, and thick and heavy Glasses earpiece is very inconvenient and not attractive in appearance, and sweating easily behind the ear makes the hearing aids loss of function; In addition, this type of osteoacusis formula glasses type hearing aids as two Glasses earpieces about will using, then can't be shared assembly such as battery, microphone or the like, and this makes the user must pay nearly double expense and buy, is not inconsistent economic benefit.
Summary of the invention
For the efficient and the device that promote osteoacusis sound are worn improvement easily, the present invention is in providing a kind of nasal bone conduction hearing aid that embeds the carrier (as glasses) that is positioned at nose, maybe can press from both sides the nasal bone conduction hearing aid that (subsides) are attached to the carrier (as glasses) in nose, perhaps directly press from both sides (subsides) in the nasal bone conduction hearing aid of nose.
The object of the present invention is to provide a kind of nasal bone conduction hearing aid that external sound is conducted to inner ear by the nasal bone oscillator.
Nasal bone conduction hearing aid of the present invention comprises:
Regulation device receives and handles the sound signal by the external world transmitted;
Bone skin conduction oscillating device has oscillator, in order to receive the signal of handling through this regulation device; And
Carrier device is to carry this regulation device and this bone skin conduction oscillating device;
Its feature exists, this carrier device is the carrier that is placed in nose, and make this bone skin conduction oscillating device closely contact nasal bone skin portion, and this oscillator conducts to nose in order to electric wave that this bone skin conduction oscillating device receives is changed into the wave of oscillation, reaches inner ear in order to do making this wave of oscillation see through nose skin.
Above-mentioned this carrier device can be any carriers that paste mutually with nose skin such as glasses, luntttes, goggles, goggles, nose cup, paster and mask.
Above-mentioned this regulation device comprises power supply device, alert news device, telephone transmitter, electric wave expander, FREQUENCY CONTROL processing module, signal processing module, feedbacks and eliminate processing module.
Above-mentioned this telephone transmitter is in order to collect external voice.
Above-mentioned this electric wave expander device is in order to strengthen the signal strength of this telephone transmitter.
Above-mentioned this FREQUENCY CONTROL is handled module, in order to the signal frequency-selecting with telephone transmitter and expander.
Above-mentioned this signal processor in order to the signal with frequency-selecting, handles allowing the sound of output again, more meets user's sense of hearing demand.
Above-mentioned should the back coupling eliminated processing module, in order to reduce or to eliminate the back coupling sound of auditory prosthesis.
Above-mentioned this regulation device further comprises power supply device and volume adjuster.
The whole device of transferring of above-mentioned this volume is in order to adjust volume.
Above-mentioned this power supply device is in order to provide the power supply of items of equipment running.
But above-mentioned this power supply device is the Related product of battery or other power supply.
Description of drawings
Fig. 1 is the calcspar of nasal bone conduction hearing aid of the present invention;
Fig. 2 is nasal bone conduction hearing aid of the present invention is used for glasses in live splint subsides mode a carrier stereogram;
Fig. 3 is that nasal bone conduction hearing aid of the present invention is to embed the carrier stereogram of glasses mode.
Embodiment
Please refer to Fig. 1, it shows the calcspar of nasal bone conduction hearing aid of the present invention.Nasal bone conduction hearing aid 100 of the present invention, comprise: regulation device 1, this regulation device 1 comprise power supply device 10, telephone transmitter 11, electric wave expander 12, FREQUENCY CONTROL processing module 13, alert news device 14, signal processing module 15, back coupling elimination processing module 16 and volume adjuster 17, signal transmission line 5; And bone skin conduction oscillating device 2, this bone skin conduction oscillating device 2 has oscillator 20; And carrier device (please refer to Fig. 2 and Fig. 3), this carrier device carries this regulation device 1 and this bone skin conduction oscillating device 2 and places nose.
Please continue with reference to figure 1, this bone skin conduction oscillating device 2 is contact user's nasal bone skin portion closely, and the oscillator 20 of this bone skin conduction oscillating device 2 reaches inner ear for the electric wave that is received being converted to the wave of oscillation through nose skin, and has the function of listening to, and this regulation device 1 receives and handles the sound signal by the external world transmitted, and power supply device 10 supplies nasal bone conduction hearing aid 100 whole required power supplys of the present invention of this regulation device 1, and but this power supply device 10 can be the Related product of battery or other power supply, and this telephone transmitter 11 can be microphone, in order to collect sound, and this electric wave expander 12 is collected the signal strength of sound in order to strengthen this telephone transmitter 11, and this FREQUENCY CONTROL is handled module 13, in order to signal frequency-selecting with telephone transmitter 11 and electric wave expander 12, and alert news device 14, when power supply reaches low capacity, to send alert news automatically, to remind the user to change battery, and signal processing module 15, in order to the frequency-selecting signal, again through handling again, allow the sound of output more meet user's sense of hearing demand, eliminated processing module 16 and should feedback, be when the electric signal of this signal processing module 15 produces the back coupling noise, to produce one group of opposite electric signal automatically and feedback noise cancellation, in order to reduce the back coupling sound of nasal bone conduction hearing aid 100, to reach function and the reduction interference source that back coupling is eliminated, the stability that keeps tonequality, and this volume adjuster 17 are in order to adjust volume.
When nasal bone conduction hearing aid 100 of the present invention in when running, this power supply device 10 provides all nasal bone conduction hearing aids 100 required electric power, and inspect electric power through this alert news device 14 and whether reached low state of charge, if then directly the alert news signal is sent to this bone skin conduction oscillating device 2 through this volume adjuster 17, and allow the user hear this signal, so that the battery that more renews ahead of time; Then collect sound if not via this telephone transmitter 11, and will be by the collected sound of this telephone transmitter 11, earlier through this electric wave expander 12, strengthen the intensity of these telephone transmitter 11 signals, handle the frequency-selecting processing of module 13 again through this FREQUENCY CONTROL, and obtain best frequency environment, and handle through the signal of this signal processing module 15 again, allow its tonequality of outside sound be more suitable for the user, and if in use if any feedbacking the phenomenon of sound when producing, this back coupling is eliminated processing module 16 and will be produced one group of opposite electric signal automatically and feedback noise cancellation, in order to reduce the back coupling sound of nasal bone conduction hearing aid 100, to eliminate the noise phenomenon that is produced because of feedbacking, adjust volume to the volume that is suitable for the user via this volume adjuster 17 again, by this signal transmission line 5 audible signals is sent to this bone skin conduction oscillating device 2 at last, and pass through the oscillator 20 of this bone skin conduction oscillating device 2, the electric wave signal is changed into the wave of oscillation, see through nose skin and reach inner ear.Therefore, feature of the present invention by the nose bone conduction passage can reach hearing aid all more in the past prior art be good effect.
Please refer to Fig. 2 and cooperation with reference to figure 1, it shows that nasal bone conduction hearing aid of the present invention is used for the carrier stereogram of glasses in live splint subsides mode.The present invention is applied to the nasal bone conduction hearing aid 100 of glasses, comprises: glasses 3, these glasses 3 have picture frame linkage frame 30 and a pair of picture frame nose pad support 31; Movable main body cover 6, there is the folder label apparatus 7 that is sandwiched on this picture frame linkage frame 30 at its back, and be provided with regulation device 1 in this movable main body cover 6, and cooperate each function selecting of this regulation device 1 to be provided with telephone transmitter 11 and volume adjuster 17 in the panel of this movable main body cover 6.
This is to being provided with this bone skin conduction oscillating device 2 in the picture frame nose pad support 31, and this is connected communication to this bone skin conduction oscillating device 2 in the picture frame nose pad support 31 by the regulation device 1 in the movable main body cover 6 of this signal transmission line 5 and this, so that in use, receive sound signal by the telephone transmitter on this movable main body cover 6 11, again via the electric wave expander 12 of this regulation device 1, strengthen the intensity of these telephone transmitter 11 signals, handle the frequency-selecting processing of module 13 again through this FREQUENCY CONTROL, and handle again through the signal of this signal processing module 15 again, eliminate the back coupling sound that processing module 16 reduces or eliminate nasal bone conduction hearing aid 100 through feedbacking, adjust volume through volume adjuster 17 again, by this signal transmission line 5 signal is sent to the bone skin conduction oscillating device 2 in the picture frame nose pad support 31 at last, and the oscillator 20 by this bone skin conduction oscillating device 2, the electric wave signal is changed into the wave of oscillation, reach inner ear through nose skin and listen to, and finish the nasal bone conduction hearing aid 100 that the present invention is applied to glasses 3.
Please refer to Fig. 3 and cooperation with reference to figure 1, it shows that nasal bone conduction hearing aid of the present invention is to embed the carrier stereogram of glasses mode.The present invention is applied to the nasal bone conduction hearing aid 100 of glasses, comprises: glasses 3, these glasses 3 have picture frame linkage frame 30 and a pair of picture frame nose pad support 31; Embedded main body cover 4 embeds this glasses 3, is provided with regulation device 1 in this embedded main body cover 4, and cooperates each function selecting of this regulation device 1 to be provided with telephone transmitter 11 and volume adjuster 17 in the panel of this embedded main body cover 4.
Please continue with reference to figure 3, this is to being provided with this bone skin conduction oscillating device 2 in the picture frame nose pad support 31, and this is connected communication to this bone skin conduction oscillating device 2 in the picture frame nose pad support 31 by the regulation device 1 in the embedded main body cover 4 of this signal transmission line 5 and this, so that in use, receive the external sound signal by the telephone transmitter on this main body cover 4 11, again via the electric wave expander 12 of this regulation device 1, strengthen the intensity of these telephone transmitter 11 signals, handle the frequency-selecting processing of module 13 again through this FREQUENCY CONTROL, and handle through the signal of this signal processing module 15 again, eliminate the back coupling sound that processing module 16 reduces or eliminate nasal bone conduction hearing aid 100 through feedbacking, adjust volume through volume adjuster 17 again, by this signal transmission line 5 audible signals is sent to the bone skin conduction oscillating device 2 in the picture frame nose pad support 31 at last, and the oscillator 20 by this bone skin conduction oscillating device 2, the electric wave signal is changed into the wave of oscillation, see through nose skin and reach inner ear, and finish the nasal bone conduction hearing aid 100 that the present invention is applied to glasses 3.
After describing preferred embodiment of the present invention in detail, those skilled in the art can clearly understand, and can carry out various variations and change under scope that does not break away from following claim and spirit, also are not subject to the execution mode of the embodiment of specification.
Claims (14)
1. nasal bone conduction hearing aid comprises:
Regulation device is in order to receive and to handle the sound signal by the external world transmitted;
Bone skin conduction oscillating device has oscillator, in order to receive the signal of handling through this regulation device; And
Carrier device is to carry this regulation device and this bone skin conduction oscillating device;
It is characterized in that, this carrier device is the carrier that is placed in nose, and make this bone skin conduction oscillating device closely contact nasal bone skin portion, and this oscillator conducts to nose in order to electric wave that this bone skin conduction oscillating device receives is changed into the wave of oscillation, makes this wave of oscillation see through nose skin and reaches inner ear.
2. nasal bone conduction hearing aid as claimed in claim 1, wherein this carrier device is glasses, luntttes, goggles, goggles, nose cup, paster, mask or makes this carrier device person that is attached at the nose skin.
3. nasal bone conduction hearing aid as claimed in claim 1, wherein this regulation device comprises telephone transmitter, electric wave expander, FREQUENCY CONTROL processing module, signal processing module, feedbacks and eliminate processing module, power supply device and signal transmission line.
4. nasal bone conduction hearing aid as claimed in claim 3, wherein this telephone transmitter is in order to collect the microphone of sound.
5. nasal bone conduction hearing aid as claimed in claim 3, this electric wave expander wherein is in order to strengthen the signal strength of this telephone transmitter.
6. nasal bone conduction hearing aid as claimed in claim 3, this signal processing module wherein is in order to handle the signal of frequency-selecting again.
7. nasal bone conduction hearing aid as claimed in claim 3, wherein this FREQUENCY CONTROL is handled module, in order to the signal frequency-selecting with expander.
8. nasal bone conduction hearing aid as claimed in claim 3 wherein should be feedback and eliminate processing module, in order to be reduced the back coupling sound of auditory prosthesis.
9. nasal bone conduction hearing aid as claimed in claim 3, this power supply device wherein is in order to provide the power supply of items of equipment running.
10. nasal bone conduction hearing aid as claimed in claim 9, wherein this power supply device can provide the Related product of power supply for battery or other.
11. as claim 3,4,5,6,7,8,9 or 10 described nasal bone conduction hearing aids, wherein this regulation device further comprises the alert news device.
12. as claim 3,4,5,6,7,8,9 or 10 described nasal bone conduction hearing aids, wherein this regulation device further comprises volume adjuster.
13. nasal bone conduction hearing aid as claimed in claim 12, this volume adjuster wherein is in order to adjust volume.
14. nasal bone conduction hearing aid as claimed in claim 11, wherein this regulation device further comprises volume adjuster.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410101471 CN1791283B (en) | 2004-12-16 | 2004-12-16 | Nasal bone conduction hearing aid |
| KR1020077004811A KR100851089B1 (en) | 2004-08-27 | 2005-06-07 | Nasal conduction wireless communication transmitter |
| EP05755671.4A EP1783919B1 (en) | 2004-08-27 | 2005-06-07 | The nasal bone conduction wireless communication transmission equipment |
| PCT/CN2005/000799 WO2006021133A1 (en) | 2004-08-27 | 2005-06-07 | The nasal bone conduction wireless communication transmission equipment |
| AU2005276865A AU2005276865B2 (en) | 2004-08-27 | 2005-06-07 | The nasal bone conduction wireless communication transmission equipment |
| JP2007528558A JP2008511217A (en) | 2004-08-27 | 2005-06-07 | Nasal bone conduction wireless communication transmission device |
| CA2578083A CA2578083C (en) | 2004-08-27 | 2005-06-07 | Nasal bone conduction wireless communication transmitting device |
| BRPI0514159-1A BRPI0514159A2 (en) | 2004-08-27 | 2005-06-07 | nasal bone conduction wireless communication device, nasal bone conduction wireless communication system, and nasal bone conduction hearing aid |
| HK06112050.6A HK1090503B (en) | 2006-11-02 | Nasal bone conduction hearing aids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410101471 CN1791283B (en) | 2004-12-16 | 2004-12-16 | Nasal bone conduction hearing aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1791283A CN1791283A (en) | 2006-06-21 |
| CN1791283B true CN1791283B (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410101471 Expired - Fee Related CN1791283B (en) | 2004-08-27 | 2004-12-16 | Nasal bone conduction hearing aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1791283B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595176A (en) * | 2011-01-10 | 2012-07-18 | 株式会社伊连特 | Liquid crystal shutter glasses with bone conduction vibrator |
| US9485559B2 (en) | 2011-02-25 | 2016-11-01 | Rohm Co., Ltd. | Hearing system and finger ring for the hearing system |
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| US9313306B2 (en) | 2010-12-27 | 2016-04-12 | Rohm Co., Ltd. | Mobile telephone cartilage conduction unit for making contact with the ear cartilage |
| CN109039391B (en) * | 2010-12-27 | 2021-08-10 | 株式会社精好 | Mobile telephone |
| TWI660618B (en) | 2012-01-20 | 2019-05-21 | 日商精良股份有限公司 | Mobile phone |
| TWI571133B (en) | 2012-06-29 | 2017-02-11 | Rohm Co Ltd | Stereophone |
| WO2015025829A1 (en) | 2013-08-23 | 2015-02-26 | ローム株式会社 | Portable telephone |
| US9705548B2 (en) | 2013-10-24 | 2017-07-11 | Rohm Co., Ltd. | Wristband-type handset and wristband-type alerting device |
| JP6551919B2 (en) | 2014-08-20 | 2019-07-31 | 株式会社ファインウェル | Watch system, watch detection device and watch notification device |
| CN110312181B (en) | 2014-12-18 | 2020-12-15 | 株式会社精好 | Answering device and bicycle system for bicycle driving |
| WO2017010547A1 (en) | 2015-07-15 | 2017-01-19 | ローム株式会社 | Robot and robot system |
| JP6551929B2 (en) | 2015-09-16 | 2019-07-31 | 株式会社ファインウェル | Watch with earpiece function |
| US10778824B2 (en) | 2016-01-19 | 2020-09-15 | Finewell Co., Ltd. | Pen-type handset |
| JP2020053948A (en) | 2018-09-28 | 2020-04-02 | 株式会社ファインウェル | Hearing device |
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|---|---|---|---|---|
| US4520238A (en) * | 1982-11-16 | 1985-05-28 | Pilot Man-Nen-Hitsu Kabushiki Kaisha | Pickup device for picking up vibration transmitted through bones |
| US5447489A (en) * | 1989-08-17 | 1995-09-05 | Issalene; Robert | Bone conduction hearing aid device |
| CN2492982Y (en) * | 2001-06-19 | 2002-05-22 | 陕西烽火集团公司 | Earplug-type bone conduction receiver |
| WO2004012477A2 (en) * | 2002-07-26 | 2004-02-05 | Oakley, Inc. | Wireless interactive headset |
| CN2760887Y (en) * | 2004-12-16 | 2006-02-22 | 智点科技股份有限公司 | Nasal bone conduction hearing aids |
-
2004
- 2004-12-16 CN CN 200410101471 patent/CN1791283B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4520238A (en) * | 1982-11-16 | 1985-05-28 | Pilot Man-Nen-Hitsu Kabushiki Kaisha | Pickup device for picking up vibration transmitted through bones |
| US5447489A (en) * | 1989-08-17 | 1995-09-05 | Issalene; Robert | Bone conduction hearing aid device |
| CN2492982Y (en) * | 2001-06-19 | 2002-05-22 | 陕西烽火集团公司 | Earplug-type bone conduction receiver |
| WO2004012477A2 (en) * | 2002-07-26 | 2004-02-05 | Oakley, Inc. | Wireless interactive headset |
| CN2760887Y (en) * | 2004-12-16 | 2006-02-22 | 智点科技股份有限公司 | Nasal bone conduction hearing aids |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595176A (en) * | 2011-01-10 | 2012-07-18 | 株式会社伊连特 | Liquid crystal shutter glasses with bone conduction vibrator |
| US9485559B2 (en) | 2011-02-25 | 2016-11-01 | Rohm Co., Ltd. | Hearing system and finger ring for the hearing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1791283A (en) | 2006-06-21 |
| HK1090503A1 (en) | 2006-12-22 |
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