Patents for H04R 25 - Deaf-aid sets (22,418) |
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07/26/1994 | US5333206 Dual element headphone |
07/26/1994 | US5333119 Digital signal processor with delayed-evaluation array multipliers and low-power memory addressing |
07/26/1994 | US5332928 Battery drain reducer |
07/20/1994 | EP0544677B1 Electromagnetic middle-ear hearing aid |
07/19/1994 | US5330520 Implantable electrode and sensor lead apparatus |
07/14/1994 | DE4300804A1 Balloon ear plug tampon |
07/07/1994 | WO1994015440A1 Cerumen barrier for the hearing instruments |
07/07/1994 | WO1994015397A1 Circuit arrangement for an integrated output amplifier |
07/07/1994 | WO1994014376A1 Telemetry system and apparatus |
07/06/1994 | EP0578752A4 Inconspicuous communication method utilizing remote electromagnetic drive |
07/05/1994 | US5327506 Voice transmission system and method for high ambient noise conditions |
07/05/1994 | US5327500 Cerumen barrier for custom in the ear type hearing intruments |
07/05/1994 | US5327499 Safety device for a hearing aid |
07/05/1994 | US5325872 Tinnitus masker |
06/30/1994 | DE4327634C1 Behind-the-ear hearing aid |
06/29/1994 | EP0603204A1 Improved electromagnetic hearing system |
06/28/1994 | US5325436 Method of signal processing for maintaining directional hearing with hearing aids |
06/23/1994 | WO1994014293A1 Hearing aid having liquid transmission means |
06/23/1994 | WO1994014239A1 Pre-amplifier |
06/23/1994 | WO1994014110A1 Battery drain reducer |
06/23/1994 | CA2150226A1 Battery drain reducer |
06/22/1994 | EP0435954B1 Apparatus and method for conveying amplified sound to ear |
06/21/1994 | US5323468 Bone-conductive stereo headphones |
06/15/1994 | EP0580579A4 Improvements in and relating to transmission line loudspeakers |
06/15/1994 | EP0461196B1 Power efficient hearing aid |
06/15/1994 | EP0449860B1 Tinnitus masker |
06/14/1994 | US5321758 Power efficient hearing aid |
06/14/1994 | US5321757 Hearing aid and method for preparing same |
06/14/1994 | US5320098 Optical transdermal link |
06/09/1994 | WO1994013116A1 Plug-in transducers in hearing aids |
06/09/1994 | DE3645255C2 Class D hearing and amplifier |
06/08/1994 | CN2168374Y Speech-training hearing aid |
06/07/1994 | US5319717 Hearing aid microphone with modified high-frequency response |
06/07/1994 | US5319163 Waterproof earmold-to-earphone adapter |
06/07/1994 | US5318502 Hearing aid having gel or paste transmission means communcative with the cochlea and method of use thereof |
06/01/1994 | EP0598729A1 Electret feature, method of producing it, and its use in an electro-acoustic transducer. |
05/31/1994 | US5317640 Switched amplifier |
05/25/1994 | EP0598447A1 Method of manufacturing an in-the-ear hearing aid, auxiliary element for use in the method, and ear mould and hearing aid manufactured in accordance with the method |
05/24/1994 | CA2008624C Tri-select hearing assist |
05/11/1994 | WO1994010820A1 Electronic simulator of non-linear and active cochlear signal processing |
05/11/1994 | WO1994010819A1 Hearing aid with permanently adjusted frequency response |
05/11/1994 | WO1994010817A1 Electroacoustic transducer |
05/11/1994 | EP0596456A1 Method of manufacturing an integrated capacitive transductor |
05/11/1994 | EP0449823A4 Improved variolosser |
05/11/1994 | CA2148453A1 Electronic simulator of non-linear and active cochlear signal processing |
05/05/1994 | DE4236516A1 Remote control with sliding cover - allows person wearing hearing aid to control various functions by unambiguous touch of keys, i.e. without looking |
04/28/1994 | WO1994009607A1 Hearing aid microphone with modified high-frequency response |
04/28/1994 | WO1994009606A1 Tinnitus-treatment device |
04/28/1994 | WO1994009604A1 Hearing aid compensating for acoustic feedback |
04/28/1994 | WO1994008539A1 Package and method of construction |
04/28/1994 | CA2146118A1 Hearing aid microphone with modified high-frequency |
04/21/1994 | DE4234964A1 Tinnitus-Behandlungsgerät Tinnitus treatment device |
04/19/1994 | US5305420 Method and apparatus for hearing assistance with speech speed control function |
04/14/1994 | DE4233651A1 Adapting hearing aid unit to patient's ear - by coating with silicone which is partially cured in-situ. |
04/13/1994 | EP0592386A1 Bone conduction hearing aid |
04/13/1994 | EP0591791A1 Programmable hearing-aid |
04/13/1994 | EP0591441A1 An improved multiband programmable compression system |
04/12/1994 | US5303306 Hearing aid with programmable remote and method of deriving settings for configuring the hearing aid |
04/12/1994 | US5303305 Solar powered hearing aid |
04/08/1994 | CA2107829A1 Bone conducting hearing aid |
04/06/1994 | EP0590903A1 Output limiter for class-D BICMOS hearing aid output amplifier |
04/05/1994 | CA1328228C Magnetic ossicular replacement prosthesis |
03/31/1994 | WO1994007343A1 Method for the securing of an electro-acoustic device on or in the human ear and electro-acoustic device for use in the method |
03/31/1994 | WO1994007342A1 Bone conduction accelerometer microphone |
03/31/1994 | WO1994007341A1 Electroacoustic speech intelligibility enhancement method and apparatus |
03/30/1994 | EP0589308A1 Hearing aid |
03/22/1994 | US5297056 Directly-writable digital potentiometer |
03/16/1994 | EP0587032A1 Integrated capacitive transducer |
03/15/1994 | US5295193 Device for picking up bone-conducted sound in external auditory meatus and communication device using the same |
03/15/1994 | US5295191 Hearing aid intended for being mounted within the ear canal |
03/09/1994 | EP0585976A2 Hearing aid with cancellation of acoustic feedback |
03/09/1994 | EP0585485A1 Hearing-aid device |
03/08/1994 | US5293008 Earwax trap for use with hearing-aid apparatus, and hearing-aid apparatus with such a trap |
03/02/1994 | EP0584259A1 Hearing aid |
02/24/1994 | DE4227641A1 Audio frequency signal transmission device for inductive hearing device - uses induction coil provided by conductor loop supplied from annular core transformer |
02/22/1994 | US5289544 Method and apparatus for reducing background noise in communication systems and for enhancing binaural hearing systems for the hearing impaired |
02/22/1994 | US5289543 FM receiver and communication systems including same |
02/08/1994 | US5285502 Signal processing circuit |
02/08/1994 | US5285499 Ultrasonic frequency expansion processor |
02/08/1994 | CA1326831C Hearing aid employing a viscoelastic material to adhere components to the casing |
02/02/1994 | EP0581262A1 Auditory prosthesis for adaptively filtering selected auditory component by user activation and method for doing same |
02/02/1994 | EP0581261A1 Auditory prosthesis with user-controlled feedback |
02/02/1994 | EP0580579A1 Improvements in and relating to transmission line loudspeakers |
02/01/1994 | US5282858 For an implantable hearing aid system |
01/30/1994 | CA2100015A1 Auditory prosthesis with user-controlled feedback cancellation |
01/25/1994 | US5282253 Bone conduction microphone mount |
01/25/1994 | US5282251 Speaker device for the hearing impaired |
01/19/1994 | EP0579152A1 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adapted filtering |
01/19/1994 | EP0578752A1 Inconspicuous communication method utilizing remote electromagnetic drive. |
01/18/1994 | US5279292 Charging system for implantable hearing aids and tinnitus maskers |
01/18/1994 | CA1326285C Electronic filters, hearing aids and methods |
01/14/1994 | CA2098679A1 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adaptive filtering |
01/12/1994 | EP0578021A2 Hearing aid |
01/12/1994 | EP0578020A2 Hearing aid with an integrated circuit |
01/12/1994 | EP0578019A2 Data input device for hearing aid |
01/12/1994 | EP0269680B1 Patient controlled device for ajusting a hearing aid, method, and test device for such a hearing aid |
01/11/1994 | US5278912 Audio frequency signal compressor |
01/11/1994 | US5278910 Apparatus and method for speech signal level change suppression processing |
01/11/1994 | US5278360 Hearing aid wax guard with integral bridge |
01/11/1994 | US5277694 Electromechanical transducer for implantable hearing aids |