Buy PDF |
Patent |
Pub.Date |
Inventor |
Assignee |
Title |
|
US2783677 |
1957-03 |
Becker |
|
Stereophonic sound system and method
|
|
US3046337* |
1962-07 |
Hornyak |
|
|
|
US3110769 |
1963-11 |
Bertram |
|
Stereo sound control system
|
|
US4024344 |
1977-05 |
Dolby et al. |
Dolby Laboratories, Inc. |
Center channel derivation for stereophonic cinema sound
|
|
US4051331 |
1977-09 |
Strong et al. |
Brigham Young University |
Speech coding hearing aid system utilizing formant frequency transformation
|
|
US4052559 |
1977-10 |
Paul et al. |
Rockwell International Corporation |
Noise filtering device
|
|
US4074084 |
1978-02 |
van den Berg |
|
Method and apparatus for receiving sound intended for stereophonic reproduction
|
|
US4150253 |
1979-04 |
Knoppel |
Inter-Technology Exchange Ltd. |
Signal distortion circuit and method of use
|
|
US4405831 |
1983-09 |
Michelson |
The Regents of The University of California |
Apparatus for selective noise suppression for hearing aids
|
|
US4406001 |
1983-09 |
Klasco et al. |
The Variable Speech Control Company ("VSC") |
Time compression/expansion with synchronized individual pitch correction of separate components
|
|
US4454609 |
1984-06 |
Kates |
Signatron, Inc. |
Speech intelligibility enhancement
|
|
US4484345 |
1984-11 |
Stearns |
|
Prosthetic device for optimizing speech understanding through adjustable frequency spectrum responses
|
|
US4516257 |
1985-05 |
Torick |
CBS Inc. |
Triphonic sound system
|
|
US4622440 |
1986-11 |
Slavin |
In Tech Systems Corp. |
Differential hearing aid with programmable frequency response
|
|
US4631525 |
1986-12 |
Serravalle, Jr. |
Sony Corporation |
Digital fader or like device
|
|
US4647980 |
1987-03 |
Steventon et al. |
Aviation Entertainment Corporation |
Aircraft passenger television system
|
|
US4776016 |
1988-10 |
Hansen |
Position Orientation Systems, Inc. |
Voice control system
|
|
US4809337 |
1989-02 |
Scholz et al. |
Scholz Research & Development, Inc. |
Audio noise gate
|
|
US4816905 |
1989-03 |
Tweedy et al. |
GTE Laboratories Incorporated & GTE Service Corporation |
Telecommunication system with video and audio frames
|
|
US4866515 |
1989-09 |
Tagawa et al. |
Sony Corporation |
Passenger service and entertainment system for supplying frequency-multiplexed video, audio, and television game software signals to passenger seat terminals
|
|
US4868881 |
1989-09 |
Zwicker et al. |
Blaupunkt-Werke GmbH |
Method and system of background noise suppression in an audio circuit particularly for car radios
|
|
US4890170 |
1989-12 |
Inohana et al. |
Pioneer Electronic Corporation |
Waveform equalization circuit for a magnetic reproducing device
|
|
US4941179 |
1990-07 |
Bergenstoff et al. |
GN Davavox A/S |
Method for the regulation of a hearing aid, a hearing aid and the use thereof
|
|
US5003605 |
1991-03 |
Phillipps et al. |
CardioDyne, Inc. |
Electronically augmented stethoscope with timing sound
|
|
US5033036 |
1991-07 |
Ohmori et al. |
Pioneer Electronic Corporation |
Reproducing apparatus including means for gradually varying a mixing ratio of first and second channel signal in accordance with a voice signal
|
|
US5113447 |
1992-05 |
Hately et al. |
Electronic Engineering and Manufacturing, Inc. |
Method and system for optimizing audio imaging in an automotive listening environment
|
|
US5131311 |
1992-07 |
Murakami et al. |
Brother Kogyo Kabushiki Kaisha |
Music reproducing method and apparatus which mixes voice input from a microphone and music data
|
|
US5138498 |
1992-08 |
Takigami |
Fuji Photo Film Co., Ltd. |
Recording and reproduction method for a plurality of sound signals inputted simultaneously
|
|
US5144454 |
1992-09 |
Cury |
|
Method and apparatus for producing customized video recordings
|
|
US5146504 |
1992-09 |
Pinckley |
Motorola, Inc. |
Speech selective automatic gain control
|
|
US5155510 |
1992-10 |
Beard |
Digital Theater Systems Corporation |
Digital sound system for motion pictures with analog sound track emulation
|
|
US5155770 |
1992-10 |
Maejima |
Sony Corporation |
Surround processor for audio signal
|
|
US5197100 |
1993-03 |
Shiraki |
Hitachi, Ltd. |
Audio circuit for a television receiver with central speaker producing only human voice sound
|
|
US5210366 |
1993-05 |
Sykes, Jr. |
|
Method and device for detecting and separating voices in a complex musical composition
|
|
US5212764 |
1993-05 |
Ariyoshi |
Ricoh Company, Ltd. |
Noise eliminating apparatus and speech recognition apparatus using the same
|
|
US5216718 |
1993-06 |
Fukuda |
Sanyo Electric Co., Ltd. |
Method and apparatus for processing audio signals
|
|
US5228098 |
1993-07 |
Kane et al. |
Tektronix, Inc. |
Adaptive spatio-temporal compression/decompression of video image signals
|
|
US5285503 |
1994-02 |
Satoh et al. |
Fujitsu Ten Limited |
Apparatus for reproducing sound field
|
|
US5289272 |
1994-02 |
Rabowsky et al. |
Hughes Aircraft Company |
Combined data, audio and video distribution system in passenger aircraft
|
|
US5294746 |
1994-03 |
Tsumura et al. |
Ricos Co., Ltd. |
Backing chorus mixing device and karaoke system incorporating said device
|
|
US5297209 |
1994-03 |
Kowaki |
Fujitsu Ten Limited |
System for calibrating sound field
|
|
US5319713 |
1994-06 |
Waller, Jr. et al. |
Rocktron Corporation |
Multi dimensional sound circuit
|
|
US5323467 |
1994-06 |
Hermes |
U.S. Philips Corporation |
Method and apparatus for sound enhancement with envelopes of multiband-passed signals feeding comb filters
|
|
US5341253 |
1994-08 |
Liao et al. |
Tatung Co. |
Extended circuit of a HiFi KARAOKE video cassette recorder having a function of simultaneous singing and recording
|
|
US5384599 |
1995-01 |
Casavant et al. |
General Electric Company |
Television image format conversion system including noise reduction apparatus
|
|
US5395123 |
1995-03 |
Kondo |
Kabushiki Kaisha Nihon Video Center |
System for marking a singing voice and displaying a marked result for a karaoke machine
|
|
US5396560 |
1995-03 |
Arcos et al. |
TRW Inc. |
Hearing aid incorporating a novelty filter
|
|
US5400409 |
1995-03 |
Linhard |
Daimler-Benz AG |
Noise-reduction method for noise-affected voice channels
|
|
US5408686 |
1995-04 |
Mankovitz |
|
Apparatus and methods for music and lyrics broadcasting
|
|
US5434922 |
1995-07 |
Miller et al. |
|
Method and apparatus for dynamic sound optimization
|
|
US5450146 |
1995-09 |
Chedeville et al. |
Digital Theater Systems, L.P. |
High fidelity reproduction device for cinema sound
|
|
US5466883 |
1995-11 |
Miyashita et al. |
Pioneer Electronic Corporation |
Karaoke reproducing apparatus
|
|
US5469370 |
1995-11 |
Ostrover et al. |
Time Warner Entertainment Co., L.P. |
System and method for controlling play of multiple audio tracks of a software carrier
|
|
US5485522 |
1996-01 |
Solve et al. |
Ericsson GE Mobile Communications, Inc. |
System for adaptively reducing noise in speech signals
|
|
US5530760 |
1996-06 |
Paisley |
Audio Products International Corp. |
Apparatus and method for adjusting levels between channels of a sound system
|
|
US5541999 |
1996-07 |
Hirai |
Rohm Co., Ltd. |
Audio apparatus having a karaoke function
|
|
US5564001 |
1996-10 |
Lewis |
Multimedia Systems Corporation |
Method and system for interactively transmitting multimedia information over a network which requires a reduced bandwidth
|
|
US5569038 |
1996-10 |
Tubman et al. |
|
Acoustical prompt recording system and method
|
|
US5569869 |
1996-10 |
Sone |
Yamaha Corporation |
Karaoke apparatus connectable to external MIDI apparatus with data merge
|
|
US5572591 |
1996-11 |
Numazu et al. |
Matsushita Electric Industrial Co., Ltd. |
Sound field controller
|
|
US5576843 |
1996-11 |
Cookson et al. |
Time Warner Entertainment Co., L.P. |
System and method for controlling play of multiple dialog audio tracks of a software carrier
|
|
US5617331 |
1997-04 |
Wakai et al. |
Matsushita Avionics Development Corporation |
Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles
|
|
US5619383 |
1997-04 |
Ngai |
Gemstar Development Corporation |
Method and apparatus for reading and writing audio and digital data on a magnetic tape
|
|
US5621182 |
1997-04 |
Matsumoto |
Yamaha Corporation |
Karaoke apparatus converting singing voice into model voice
|
|
US5621850 |
1997-04 |
Kane et al. |
Matsushita Electric Industrial Co., Ltd. |
Speech signal processing apparatus for cutting out a speech signal from a noisy speech signal
|
|
US5631712 |
1997-05 |
Suh et al. |
Samsung Electronics Co., Ltd. |
CDP-incorporated television receiver
|
|
US5644677 |
1997-07 |
Park et al. |
Motorola, Inc. |
Signal processing system for performing real-time pitch shifting and method therefor
|
|
US5666350 |
1997-09 |
Huang et al. |
Motorola, Inc. |
Apparatus and method for coding excitation parameters in a very low bit rate voice messaging system
|
|
US5668339 |
1997-09 |
Shin |
Daewoo Electronics Co., Ltd. |
Apparatus for multiplexing an audio signal in a video-song playback system
|
|
US5671320 |
1997-09 |
Cookson et al. |
Time Warner Entertainment Co., L. P. |
System and method for controlling play of multiple dialog audio tracks of a software carrier
|
|
US5680465 |
1997-10 |
Boyden |
Interval Research Corporation |
Headband audio system with acoustically transparent material
|
|
US5684714 |
1997-11 |
Yogeshwar et al. |
Kabushiki Kaisha Toshiba |
Method and system for a user to manually alter the quality of a previously encoded video sequence
|
|
US5698804 |
1997-12 |
Mizuno |
Yamaha Corporation |
Automatic performance apparatus with arrangement selection system
|
|
US5703308 |
1997-12 |
Tashiro et al. |
Yamaha Corporation |
Karaoke apparatus responsive to oral request of entry songs
|
|
US5706145 |
1998-01 |
Hindman et al. |
|
Apparatus and methods for audio tape indexing with data signals recorded in the guard band
|
|
US5712950 |
1998-01 |
Cookson et al. |
Time Warner Entertainment Co., L.P. |
System and method for controlling play of multiple dialog audio tracks of a software carrier
|
|
US5717763 |
1998-02 |
Choi et al. |
Samsung Electronics Co., Ltd. |
Vocal mix circuit
|
|
US5732390 |
1998-03 |
Katayanagi et al. |
|
Speech signal transmitting and receiving apparatus with noise sensitive volume control
|
|
US5751903 |
1998-05 |
Swaminathan et al. |
Hughes Electronics |
Low rate multi-mode CELP codec that encodes line SPECTRAL frequencies utilizing an offset
|
|
US5808569 |
1998-09 |
Wuppermann et al. |
U.S. Philips Corporation |
Transmission system implementing different coding principles
|
|
US5812688 |
1998-09 |
Gibson |
|
Method and apparatus for using visual images to mix sound
|
|
US5820384 |
1998-10 |
Tubman et al. |
|
Sound recording
|
|
US5822370 |
1998-10 |
Graupe |
Aura Systems, Inc. |
Compression/decompression for preservation of high fidelity speech quality at low bandwidth
|
|
US5852800 |
1998-12 |
Modeste et al. |
Liquid Audio, Inc. |
Method and apparatus for user controlled modulation and mixing of digitally stored compressed data
|
|
US5872851 |
1999-02 |
Petroff |
Harman Motive Incorporated |
Dynamic stereophonic enchancement signal processing system
|
|
US5991313 |
1999-11 |
Tanaka et al. |
Toko, Inc. |
Video transmission apparatus
|
| * some details unavailable |