Patents for H04R 25 - Deaf-aid sets (22,418) |
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12/03/1997 | EP0809921A1 Air conduction hearing device |
12/03/1997 | EP0809906A1 Very low power cordless headset system |
12/03/1997 | EP0809837A1 Apparatus and method for simulating a human mastoid |
12/02/1997 | US5694475 Acoustically transparent earphones |
12/02/1997 | US5694474 Adaptive filter for signal processing and method therefor |
12/02/1997 | CA2046416C Hearing aid for persons with an impaired hearing faculty |
11/27/1997 | WO1997044987A1 Improved microphones for an implantable hearing aid |
11/26/1997 | CN1166092A Radio-frequency hearing aid protector for wireless communications products |
11/20/1997 | WO1997043871A1 Calculating electrode frequency allocation in a cochlear implant |
11/20/1997 | DE19619312A1 Amplification system for hearing aid input signals |
11/20/1997 | CA2254777A1 Calculating electrode frequency allocation in a cochlear implant |
11/19/1997 | EP0806909A1 Earmolds for two-way communication devices |
11/18/1997 | CA2054428C Spectral maxima sound processor |
11/13/1997 | DE19624092A1 Amplification circuit e.g. for analogue or digital hearing aid |
11/12/1997 | EP0806885A1 Holding device for accessories mountable on a hearing aid |
11/12/1997 | EP0806884A1 Apparatus for the electro-mechanical stimulation and for the examination of the ears |
11/12/1997 | EP0806092A1 A directional acoustic signal processor and method therefor |
11/11/1997 | US5687245 Sampled chamber transducer with enhanced low frequency response |
11/11/1997 | US5687242 Hearing aid controls operable with battery door |
11/11/1997 | US5687241 Circuit arrangement for automatic gain control of hearing aids |
11/06/1997 | WO1997041710A1 Beside-the-door programming system for programming hearing aids |
11/06/1997 | DE19633321A1 Hearing aid with externally operable amplification mode selector |
11/06/1997 | DE19618019A1 Transmission parameter adjustment arrangement for acoustic hearing arrangement |
11/06/1997 | DE19618017A1 Acoustic hearing arrangement for simulating human hearing defects |
11/06/1997 | DE19618016A1 Realistic acoustic hearing arrangement for selection of hearing aid |
11/05/1997 | EP0805562A2 Radio-frequency hearing aid protector for wireless communications products |
11/05/1997 | EP0493519B1 Output amplifier |
11/05/1997 | EP0449823B1 Improved variolosser |
10/30/1997 | WO1997040645A1 A directional hearing system |
10/30/1997 | WO1997040644A1 Hearing aid device |
10/29/1997 | CN2266245Y Hearing aids for telephone |
10/29/1997 | CA2203715A1 Radio-frequency hearing aid protector for wireless communications products |
10/28/1997 | US5682434 Wearable audio system with enhanced performance |
10/28/1997 | US5682020 Sealing of hearing aid to ear canal |
10/23/1997 | WO1997039464A1 Thin film electret microphone |
10/23/1997 | DE19549355C2 Watertight hearing aid with battery receptacle |
10/22/1997 | EP0802700A1 Electroacoustic transducer |
10/22/1997 | EP0802699A2 Method for electronically enlarging the distance between two acoustical/electrical transducers and hearing aid apparatus |
10/22/1997 | EP0801878A1 Implantable and external hearing systems having a floating mass transducer |
10/21/1997 | US5680467 Hearing aid compensating for acoustic feedback |
10/21/1997 | US5680466 Omnidirectional hearing aid |
10/16/1997 | WO1997037593A1 Ear tips having a plurality of ear contacting surfaces |
10/15/1997 | EP0800751A1 Articulated hearing device |
10/15/1997 | EP0681717A4 Battery drain reducer. |
10/14/1997 | US5677965 Integrated capacitive transducer |
10/14/1997 | CA2144420C Circuit arrangement for an integrated output amplifier |
10/08/1997 | EP0800331A2 Integrated microphone/amplifier unit, and amplifier module therefor |
10/07/1997 | US5675657 Deep insertion intracanal hearing aids or miniaturized peritympanum hearing aids |
10/07/1997 | US5674265 Apparatus and methods for communications with implanted active medical devices |
10/07/1997 | US5674264 Feedback system to control electrode voltages in a cochlear stimulator and the like |
10/02/1997 | WO1997036457A1 Attaching an implantable hearing aid microactuator |
10/02/1997 | WO1997036456A1 Battery and circuitry assembly |
10/02/1997 | CA2254888A1 Battery and circuitry assembly |
10/01/1997 | EP0798947A1 Method and circuit for data processing, in particular for signal data in a digital progammable hearing aid |
10/01/1997 | EP0797875A1 An adaptive filter for signal processing and method therefor |
09/30/1997 | US5673328 In an eyeglass frame |
09/25/1997 | DE19610997A1 Elektrodynamischer Schallwandler mit Magnetspaltenabdichtung An electrodynamic transducer with magnetic seal columns |
09/18/1997 | WO1997034443A1 Disposable hearing aid |
09/18/1997 | WO1997034442A1 Hearing aid feedback detecting and warning device |
09/18/1997 | WO1997033647A1 Device and method for implants in ossified cochleas |
09/18/1997 | CA2248618A1 Disposable hearing aid |
09/17/1997 | EP0796035A1 Digital hearing-aid with processor supervision |
09/10/1997 | EP0794687A1 Method and device for determining the function and the transfer characteristic of hearing aids |
09/10/1997 | EP0793897A1 Hearing aid |
09/09/1997 | US5666429 Energy estimator and method therefor |
09/03/1997 | EP0578752B1 Inconspicuous communication method utilizing remote electromagnetic drive |
09/03/1997 | CN2261709Y Invisible earphone for aerocrafts |
09/02/1997 | US5663727 Frequency response analyzer and shaping apparatus and digital hearing enhancement apparatus and method utilizing the same |
09/02/1997 | US5663276 Wholly aromatic polyester, composition thereof, and molded article made therefrom |
08/28/1997 | WO1997031396A1 Zinc-air dry cell holder and hearing aid that uses it |
08/27/1997 | CN2261129Y Joint-use earphone |
08/26/1997 | US5661814 Hearing aid apparatus |
08/26/1997 | US5661420 Mounting configuration for monolithic integrated circuit |
08/21/1997 | WO1997030565A1 Improved biocompatible transducers |
08/19/1997 | US5659621 Magnetically controllable hearing aid |
08/19/1997 | US5659156 Earmolds for two-way communications devices |
08/13/1997 | EP0789474A2 A hands-free arrangement for mobile communication device |
08/13/1997 | EP0500700B1 High fidelity hearing aid amplifier |
08/07/1997 | WO1997028668A1 Thin film fabrication technique for implantable electrodes |
08/07/1997 | DE19603806A1 Modular kit for electric hearing aid worn in ear |
08/06/1997 | EP0788290A1 Programmable hearing aid |
08/06/1997 | EP0787415A1 Multiple pulse stimulation |
08/06/1997 | EP0787383A1 Automatic sensitivity control |
08/06/1997 | EP0786975A1 Implant system for extra-oral applications and orthodontics |
08/05/1997 | US5654530 Auditory canal insert for hearing aids |
07/31/1997 | WO1997027723A1 Sound pick-up and reproduction system for a headset in a noisy environment |
07/31/1997 | CA2214094A1 Sound pick-up and reproduction system for a headset in a noisy environment |
07/24/1997 | DE19630965A1 Portable audio reproduction device |
07/24/1997 | DE19601535A1 Electronic in-ear hearing aid |
07/22/1997 | US5651071 Noise reduction system for binaural hearing aid |
07/22/1997 | CA2093060C Micropower amplifier/transducer driver with signal expansion |
07/17/1997 | DE19601231A1 Electrical external hearing aid with multifunction audio flap for wearing behind ear |
07/16/1997 | EP0784415A1 Electroacoustic transducer |
07/16/1997 | EP0783828A1 Hearing aid |
07/16/1997 | EP0783795A1 Low noise amplifier for microphone |
07/15/1997 | US5649019 Digital apparatus for reducing acoustic feedback |
07/15/1997 | CA2034176C Hearing aid |
07/10/1997 | WO1997009842A3 Acoustic device |
07/10/1997 | DE19611980C1 Amplifier circuit for digital hearing aid |
07/10/1997 | DE19600234A1 Hearing aid adjustment and adapting method and arrangement |