Patents for H04R 5 - Stereophonic arrangements (11,598)
10/1985
10/02/1985EP0156333A2 Artificial head measuring system
09/1985
09/03/1985US4539700 Personal portable audio device
08/1985
08/20/1985US4536716 Stereo amplifier circuit for bichannel signals
07/1985
07/23/1985US4531229 Method and apparatus for improving binaural hearing
06/1985
06/04/1985US4521906 Speaker systems for producing balanced stereo images at multiple locations
05/1985
05/14/1985US4517418 Portable stereophone
04/1985
04/11/1985EP0120901A4 Signal reproduction apparatus.
04/02/1985US4509184 Stereo sound system
03/1985
03/26/1985CA1184505A1 Dimensional sound producing apparatus and method
03/19/1985CA1184259A1 Stereo/monaural selecting circuit
03/12/1985US4503930 Loudspeaker system
03/05/1985US4503554 Stereophonic balance control system
03/05/1985US4503553 Loudspeaker system
02/1985
02/26/1985US4501934 Loudspeaker system
02/12/1985US4499593 Modular stereo headphones
01/1985
01/22/1985US4495638 Audio-band electro-mechanical vibration converter
01/15/1985US4494074 Feedback control
12/1984
12/27/1984CA1179949A Apparatus for matching the d.c. volume control characteristics of two audio channels
12/27/1984CA1179948A Video disc player for monophonic, stereophonic and bilingual records
12/25/1984US4490842 Headrest speaker device
12/25/1984US4490683 Electronic control switch for a power boost amplifier
12/12/1984EP0127886A2 Loudspeaker system
12/05/1984EP0126783A1 Wide-band, noise-free, high-dynamic range dummy head with high fidelity reproduction of hearing stimuli
11/1984
11/21/1984EP0125250A1 Storage unit usable particularly to accomodate the various components of a high fidelity chain
10/1984
10/10/1984EP0120901A1 Signal reproduction apparatus
10/09/1984US4475620 Loudspeaker with wall reflex absorber
10/03/1984EP0120126A2 Systems of speaker arrangements
10/02/1984US4475226 Stereo sound and light track system
10/02/1984CA1175362A1 Acoustic image enhancing method and apparatus
09/1984
09/18/1984US4472834 Loudspeaker system
09/05/1984EP0117487A1 Television apparatus with an internal bass speaker
09/04/1984CA1173756A1 Headphone
08/1984
08/14/1984US4466117 Microphone for stereo reception
08/14/1984US4465907 Headset receiver and sanitizing storage system therefor
08/14/1984CA1172744A1 Speaker unit for headphones
08/08/1984EP0114951A1 Stereophonic loudspeaker box
07/1984
07/25/1984EP0113780A1 Monaural to binaural audio processor
07/25/1984EP0113761A1 Electronic outdoor warning siren
06/1984
06/19/1984US4455677 Multipurpose headphone assembly
06/05/1984US4452333 Speaker system
05/1984
05/22/1984US4450495 Portable acoustic device
05/10/1984WO1984001702A1 Storage unit usable particularly to accomodate the various components of a high fidelity chain
04/1984
04/24/1984US4445227 Loudspeaker having improved directional characteristics
04/17/1984CA1165820A1 Radio receiving apparatus using headphone connector cable as an antenna
04/12/1984WO1984001479A1 Signal reproduction apparatus
04/10/1984US4441577 Direction-variable speaker system
03/1984
03/20/1984US4437541 Controlled dispersion speaker configuration
03/06/1984CA1163202A1 Loudspeaker or microphone arrangement having a direction - and frequency-independent behavior
02/1984
02/21/1984US4433209 Stereo/monaural selecting circuit
02/16/1984WO1984000661A1 Monaural to binaural audio processor
02/02/1984WO1984000434A1 Electronic outdoor warning siren
01/1984
01/17/1984US4426553 Vehicle loudspeaker arrangement with magnetic-field-sensitive device
01/03/1984US4424416 Acoustic reproducing apparatus
12/1983
12/06/1983CA1158173A1 Receiving system having pre-selected directional response
11/1983
11/29/1983US4418243 Acoustic projection stereophonic system
11/29/1983CA1157781A2 Method and system of controlling sound and effects devices by a film strip
11/15/1983US4415768 Tuning apparatus and method
10/1983
10/25/1983US4412106 High fidelity stereophonic reproduction system
10/25/1983US4412105 Laser microphone
10/18/1983US4410761 Stereo loudspeaker system for a picture reproducing screen
10/11/1983US4409442 Headphone
09/1983
09/15/1983WO1983003181A1 Electroacoustic converter
08/1983
08/16/1983US4399334 Speaker unit for headphones
08/16/1983US4399328 Direction and frequency independent column of electro-acoustic transducers
07/1983
07/12/1983US4393270 Controlling perceived sound source direction
07/12/1983US4392548 Speaker enclosure and method of producing same
06/1983
06/14/1983US4388494 Process and apparatus for improved dummy head stereophonic reproduction
06/14/1983US4388492 Miniature stereo device with extensible speakers
06/08/1983EP0080991A2 Loudspeaker
06/08/1983EP0080990A2 Loudspeaker with wall reflex absorber
05/1983
05/31/1983CA1147448A1 Audio-band electromechanical vibration converter
05/03/1983USRE31228 Loudspeaker system
01/1983
01/18/1983US4369521 Radio receiving apparatus using headphone connector cable as an antenna
12/1982
12/28/1982US4365688 Speaker cabinet
12/07/1982US4362907 Combination automobile sun visor and radio and speaker assembly
11/1982
11/09/1982CA1135196A1 Microphone system for producing signals for surround-sound transmission and reproduction
10/1982
10/12/1982US4354067 Audio-band electromechanical vibration converter
09/1982
09/28/1982CA1132460A1 Monitor ampliphones
09/21/1982US4350847 Subwoofer system using a passive radiator
09/07/1982US4348552 Direct/reflecting speaker system and triangular shaped enclosure
08/1982
08/11/1982EP0057287A1 Arrangement for recording and/or processing stereophonic signals
07/1982
07/28/1982EP0056479A1 Artificial head
07/06/1982US4338489 Headphone construction
06/1982
06/15/1982US4334740 Receiving system having pre-selected directional response
06/01/1982US4332979 Electronic environmental acoustic simulator
04/1982
04/21/1982EP0050100A2 Device for the spatial codification of sounds
04/20/1982US4326100 Combination automobile sun visor and speaker assembly
04/20/1982US4326099 Low frequency cabinet, in particular for a triphonic audio network
03/1982
03/30/1982US4322585 Personal electronic listening system with an air and bone transducer mounted on the clothing collar
02/1982
02/16/1982CA1118363A1 Varying loudspeaker spatial characteristics
02/02/1982CA1117433A1 Control for audio receiver
12/1981
12/29/1981US4308426 Simulated ear for receiving a microphone
10/1981
10/27/1981US4297535 Stereo headset
10/06/1981CA1110328A1 Optical communication transmission arrangements
09/1981
09/22/1981US4290332 Sound shielding and pick-up device
09/02/1981EP0034844A1 A direction- and frequency-independent loudspeaker- or microphone-column or a loudspeaker- or microphone-surface
07/1981
07/07/1981US4277654 Stethoscopic headphone set
07/07/1981CA1104504A1 Microphone assembly
05/1981
05/26/1981US4270023 Cylindrical speaker mechanism
05/12/1981US4267405 Stereo speaker system for creating stereo images