|
FR2276756A1
(en)
*
|
1974-06-24 |
1976-01-23 |
Audibel |
Automatic level control for microphone amplifier - uses series transistor with its base polarisation varying with output
|
|
FR2416610A2
(en)
*
|
1978-02-07 |
1979-08-31 |
Audibel |
Hearing aid signal correction device - has transistor collector-emitter shunt resistor to reduce transfer resistance and increase input signal range
|
|
US4405831A
(en)
*
|
1980-12-22 |
1983-09-20 |
The Regents Of The University Of California |
Apparatus for selective noise suppression for hearing aids
|
|
US4622440A
(en)
*
|
1984-04-11 |
1986-11-11 |
In Tech Systems Corp. |
Differential hearing aid with programmable frequency response
|
|
ATE53735T1
(en)
*
|
1985-10-16 |
1990-06-15 |
Siemens Ag |
HEARING AID.
|
|
US4750207A
(en)
*
|
1986-03-31 |
1988-06-07 |
Siemens Hearing Instruments, Inc. |
Hearing aid noise suppression system
|
|
US4759071A
(en)
*
|
1986-08-14 |
1988-07-19 |
Richards Medical Company |
Automatic noise eliminator for hearing aids
|
|
US4790018A
(en)
*
|
1987-02-11 |
1988-12-06 |
Argosy Electronics |
Frequency selection circuit for hearing aids
|
|
AT396045B
(en)
*
|
1987-06-26 |
1993-05-25 |
Viennatone Gmbh |
HOERGERAET
|
|
GB2211701A
(en)
*
|
1987-10-27 |
1989-07-05 |
Kevin Stanley Fuller |
An audio frequency sensing switch
|
|
DE3802903A1
(en)
*
|
1988-02-01 |
1989-08-10 |
Siemens Ag |
LANGUAGE TRANSFER DEVICE
|
|
US4941179A
(en)
*
|
1988-04-27 |
1990-07-10 |
Gn Davavox A/S |
Method for the regulation of a hearing aid, a hearing aid and the use thereof
|
|
JP2656306B2
(en)
*
|
1988-07-05 |
1997-09-24 |
株式会社東芝 |
Telephone
|
|
US5111506A
(en)
*
|
1989-03-02 |
1992-05-05 |
Ensonig Corporation |
Power efficient hearing aid
|
|
CH681188A5
(en)
*
|
1990-10-30 |
1993-01-29 |
Ascom Audiosys Ag |
|
|
US6072885A
(en)
*
|
1994-07-08 |
2000-06-06 |
Sonic Innovations, Inc. |
Hearing aid device incorporating signal processing techniques
|
|
US8085959B2
(en)
|
1994-07-08 |
2011-12-27 |
Brigham Young University |
Hearing compensation system incorporating signal processing techniques
|
|
US6359992B1
(en)
|
1997-02-06 |
2002-03-19 |
Micro Ear Technology |
Acoustics conditioner
|
|
WO1999065276A1
(en)
†
|
1998-06-08 |
1999-12-16 |
Cochlear Limited |
Hearing instrument
|
|
US6212275B1
(en)
*
|
1998-06-30 |
2001-04-03 |
Lucent Technologies, Inc. |
Telephone with automatic pause responsive, noise reduction muting and method
|
|
US6480610B1
(en)
*
|
1999-09-21 |
2002-11-12 |
Sonic Innovations, Inc. |
Subband acoustic feedback cancellation in hearing aids
|
|
US6757395B1
(en)
|
2000-01-12 |
2004-06-29 |
Sonic Innovations, Inc. |
Noise reduction apparatus and method
|
|
US7139404B2
(en)
|
2001-08-10 |
2006-11-21 |
Hear-Wear Technologies, Llc |
BTE/CIC auditory device and modular connector system therefor
|
|
US20070282392A1
(en)
*
|
2006-05-30 |
2007-12-06 |
Phonak Ag |
Method and system for providing hearing assistance to a user
|
|
US8180078B2
(en)
*
|
2007-12-13 |
2012-05-15 |
At&T Intellectual Property I, Lp |
Systems and methods employing multiple individual wireless earbuds for a common audio source
|
|
EP3910966A1
(en)
|
2015-06-29 |
2021-11-17 |
Hear-wear Technologies, LLC |
Transducer modules for auditory communication devices and auditory communication devices
|
|
CN106254999B
(en)
*
|
2016-07-20 |
2019-03-05 |
瑞声声学科技(深圳)有限公司 |
Microphone amplifier circuit
|