Patents for H04R 5 - Stereophonic arrangements (11,598)
05/1995
05/05/1995CA2114076A1 System for generating and imparting sounds to a fetus
04/1995
04/26/1995EP0442912B1 Loudspeaker arrangement
04/25/1995US5410735 Wireless signal transmission systems, methods and apparatus
04/19/1995EP0649269A1 Speaker enclosure with extended range of diffusion
04/18/1995CA2016301C Image derived directional microphones
04/13/1995WO1995010164A1 Microphone system for teleconferencing system
04/13/1995WO1995010163A1 Loudspeaker system
04/05/1995CN1101203A Anti-noise earphone
04/05/1995CN1101202A Asymmeirical tranducing
03/1995
03/30/1995WO1995008884A2 Dual output multi function interface device for audio systems
03/30/1995CA2171480A1 Dual output multi function interface device for audio systems
03/28/1995US5402502 Loudspeaker unit
03/22/1995EP0643882A1 Passive selective headset
03/21/1995US5400408 High performance stereo sound enclosure for computer visual display monitor and method for construction
03/21/1995US5398992 Seat having sound system with acoustic waveguide
03/16/1995DE4431873A1 Fahrzeug-Audioanlage Vehicle audio system
03/15/1995EP0584299A4 Improved audio distribution system.
03/09/1995WO1995006573A1 Device for mobile telephones
03/09/1995DE4422500A1 Decorative column for accommodating a subwoofer system
03/08/1995EP0642292A2 Device for sonic stereo reproduction
03/01/1995EP0641143A2 Method for simulating spatial and/or sonic impression
03/01/1995EP0639962A1 Hands free noise canceling headset
03/01/1995CN2190844Y Multifunction sound track changing ear phone
02/1995
02/28/1995US5394478 Low frequency sound generation system for use in vehicular passenger compartments
02/23/1995WO1995005724A1 Spatial sound reproduction system
02/22/1995EP0639317A1 Loudspeaker system
02/16/1995WO1995005057A1 Loudspeaker
02/08/1995CN1098539A Sound system gain and equalization circuit
02/07/1995US5388162 Sound innovation speaker system
02/01/1995EP0637189A2 Audio signal processing circuit
02/01/1995EP0637188A1 A sound recording system
01/1995
01/31/1995US5386473 Passive surround sound circuit
01/26/1995DE4424192A1 Electronic device for generating three-dimensional acoustic effects
01/19/1995WO1995002310A1 Headphone assembly
01/18/1995EP0634881A1 Determination of position
01/11/1995CN2187362Y Positioning adjuster for speakers
01/10/1995US5381486 Communications headset having a universal joint-mounted microphone boom
01/05/1995WO1995001078A1 Computer visual display monitor with integral stereo speaker and directional microphone and method for construction
01/05/1995WO1995001077A1 High performance stereo sound enclosure for computer visual display monitor
01/05/1995DE4320976A1 Safety telephone set for transmitting and receiving speech in motor vehicles and cabins
01/04/1995EP0631709A1 Dual element headphone
12/1994
12/22/1994WO1994030029A1 Hybrid noise cancellation system for headsets
11/1994
11/24/1994WO1994027416A1 Stereophonic reproduction method and apparatus
11/24/1994WO1994027397A1 Computer-to-telephone interface
11/22/1994US5367506 Sound collecting system and sound reproducing system
11/16/1994CN1026634C 回声添加电路 Echo adding circuit
11/10/1994WO1994026075A1 Tracking platform system
11/09/1994EP0624047A1 Asymmetrical transducing
11/08/1994US5363434 Audio distribution system
11/02/1994EP0622896A1 Sound system gain and equalization circuit
11/01/1994US5361381 Dynamic equalizing of powered loudspeaker systems
11/01/1994US5361380 Woofer module for use in a television set
11/01/1994US5361378 Camcorder stereo mic/phones
10/1994
10/29/1994CA2121299A1 Sound system gain and equalization circuit
10/27/1994DE4313256A1 Method for suppressing feedback in the case of hall or large-field audio systems and circuit arrangement for carrying out the method
10/18/1994US5357585 Headphone assembly
10/17/1994EP0639317A4 Loudspeaker system.
10/13/1994WO1994023520A1 Unidirectional ear microphone with multiple openings
10/11/1994US5355419 On-vehicle audio system reproducing bodily-sensible sounds
09/1994
09/29/1994WO1994022278A1 Plural-channel sound processing
09/29/1994CA2158451A1 Plural-channel sound processing
09/21/1994CN1092590A Television receiver with stereo speakers
09/20/1994US5349639 Automatic electronic audio signal attenuating device and method therefor
09/20/1994US5349386 Wireless signal transmission systems, methods and apparatus
09/08/1994DE4309492C1 Internal roof-bracket for motor vehicles, in particular for utility vehicles derived from passenger vehicles
09/07/1994EP0614314A1 Audiovisual equipment and casing thereof and method of producing the same
08/1994
08/31/1994EP0613320A2 Wireless headphones
08/18/1994WO1994015439A3 Method of polarizing acoustic fields in particular with the aim of achieving an extremely broad, non-localized and spatial stereo effect requiring little space
08/18/1994DE4403723A1 Microphone for a video camera
08/16/1994US5339461 Compact radio frequency receiver having take-up spool housed earphone conductors
08/04/1994WO1994017513A1 Earpiece for active noise cancelling headset
08/04/1994DE4302572A1 Eye operating arrangement for eg. teddy bear
08/03/1994EP0484354B1 Stereo headphone for the "in front" location of auditory events generated by stereo headphones
07/1994
07/27/1994EP0607693A2 Method and apparatus for diagnosing AMP to Speaker Connections
07/26/1994US5333206 Dual element headphone
07/26/1994US5333202 Multidimensional stereophonic sound reproduction system
07/07/1994WO1994015439A2 Method of polarizing acoustic fields in particular with the aim of achieving an extremely broad, non-localized and spatial stereo effect requiring little space
07/07/1994CA2152611A1 Method of polarizing acoustic fields in particular with the aim of achieving an extrelmely broad, non-localized and spatial stereo effect requiring little space
07/06/1994EP0605224A1 Television set speaker system
06/1994
06/30/1994DE4244397A1 Method for reproducing acoustic wave fields
06/28/1994US5325436 Method of signal processing for maintaining directional hearing with hearing aids
06/21/1994US5323468 Bone-conductive stereo headphones
06/14/1994US5321763 Body sense speaker
06/14/1994US5321756 Loudspeaker system with sonically powered drivers and centered feedback loudspeaker connected thereto
06/08/1994EP0600677A1 Cinefilm and recording and reproduction thereof
05/1994
05/31/1994CA1329911C Sound imaging method and apparatus
05/25/1994CN2166566Y 传声器 Microphone
05/24/1994US5313678 Acoustical pillow
05/18/1994CN2165590Y Wall loudspeaker free running preventing device
05/11/1994WO1994010816A1 Methods and apparatus for producing directional sound
05/11/1994DE4242033C1 Domestic TV receiver cabinet - has lower part of reduced width for accommodating left and right loudspeaker boxes
05/11/1994CN2164624Y Eight-function audio apparatus
04/1994
04/21/1994DE4324497A1 Remote control unit e.g. for computer network - provides on-off switching, power control, and remote operation acoustically for various electrical installations
04/20/1994CN1024312C Apparatus & method thereof for improvement of stereophonic sound
04/19/1994US5305388 Bass compensation circuit for use in sound reproduction device
04/13/1994CN2162063Y Headphone for recording and playing
04/12/1994US5303304 Camcorder having loudspeaker function
04/07/1994DE4327540A1 Stereo headphone with transfer function - has comb filter sequence of cut=off levels in range of 1 KHz to 10 KHZ to guarantee forward location of audio events
04/05/1994US5301237 Surround sound loudspeakers
03/1994
03/30/1994EP0589623A2 Headphone