Patents for H04R 5 - Stereophonic arrangements (11,598)
06/1997
06/24/1997US5642427 Integrated circuit for audio enhancement system
06/24/1997US5642426 Integral radio and infrared assistive listening device
06/24/1997US5642424 Device for connecting external sound generator
06/17/1997US5640458 Audio signal reproducing apparatus
06/12/1997WO1997021323A1 Headset with a resonant effect
06/12/1997WO1997021322A1 Portable speakers with phased arrays
06/11/1997CN1151657A Audio induced interference suppression apparatus for video display appliances
06/05/1997WO1997020450A1 Stereo loudspeaker system
06/04/1997EP0776593A1 Method and apparatus for spatially enhancing stereo and monophonic signals
06/04/1997CN1151077A Method for reproducing audio signals and apparatus therefor
05/1997
05/28/1997EP0775431A1 Multi-channel headset with controlled sound-emission characteristics
05/28/1997EP0728403A4 Voice transmission adaptor assembly
05/28/1997CN1150744A Headphone
05/27/1997US5633943 Audio system for a personal computer
05/27/1997US5633938 Audio track mixing processor
05/20/1997US5631449 Audio transmission device for mounting in a monitor of a computer system
05/14/1997EP0773701A2 Portable loudspeaker/directional microphone peripheral
05/14/1997EP0773700A2 Portable loudspeaker/directional microphone peripheral
05/14/1997EP0772952A1 An audio interface garment and communication system for use therewith
05/14/1997CA2185594A1 Portable loudspeaker/directional microphone peripheral
05/07/1997EP0772372A1 Loudspeaker device for video monitor and video monitor with loudspeaker device
05/07/1997DE19645046A1 Unterdrückungsvorrichtung für audioinduzierte Interferenzen für Videoanzeigevorrichtungen Suppression device for audio induced interference for video display devices
05/06/1997US5627901 Directional microphone for computer visual display monitor and method for construction
05/01/1997WO1997016048A1 Sound reproduction system for vehicles
05/01/1997WO1997009852A3 Visual display means incorporating loudspeakers
04/1997
04/23/1997EP0769874A1 Audio amplifier arrangement for more than two reproduction channels
04/15/1997US5621804 Composite loudspeaker apparatus and driving method thereof
04/09/1997EP0645070B1 Stereophonic sound reproduction device using several loudspeakers in each channel
04/08/1997US5619582 Enhanced concert audio process utilizing a synchronized headgear system
04/03/1997WO1997009853A3 Display screens incorporating loudspeakers
04/02/1997EP0766495A2 Arrangement for reproducing a plurality of acoustic signal sources in an enclosed space
04/01/1997US5617478 Sound reproduction system and a sound reproduction method
04/01/1997US5617477 Personal wearable communication system with enhanced low frequency response
03/1997
03/27/1997WO1997011574A1 Earphones with eyeglass attachments
03/27/1997WO1997011573A1 Acoustically transparent earphones
03/20/1997DE19534400A1 Retractable loudspeakers for use in road vehicles
03/20/1997DE19534188A1 Cordless transmission device adapting method especially to ETSI appropriate frequency band
03/19/1997CN2250000Y Speaker box of TV receiver
03/18/1997US5612516 Enclosure for multiple vehicular audio speakers
03/18/1997CA2117545C Voice canceler with simulated stereo output
03/13/1997WO1997009853A2 Display screens incorporating loudspeakers
03/13/1997WO1997009852A2 Visual display means incorporating loudspeakers
03/13/1997WO1997009851A1 In-home theater surround sound speaker system
03/13/1997WO1997009850A1 Headset with ear cushion and means for limiting the compression of the cushion
03/13/1997WO1997009844A1 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
03/13/1997WO1997009842A2 Acoustic device
03/13/1997WO1997009698A1 A vending machine
03/13/1997CA2234944A1 Display screens incorporating loudspeakers
03/13/1997CA2230459A1 A vending machine
03/13/1997CA2230155A1 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
03/13/1997CA2230075A1 Visual display means incorporating loudspeakers
03/13/1997CA2214045A1 In-home theater surround sound speaker system
03/12/1997EP0762803A2 Headphone device
03/11/1997US5610992 Portable electronic device having a ported speaker enclosure
03/05/1997CN2248959Y Desk type microphone with positioning structure
03/04/1997US5608806 Audio speaker mounts for off-road vehicles
02/1997
02/27/1997WO1997007597A1 Plug-in computer card with internal audio speaker element
02/27/1997DE19530138A1 Multichannel audio system with central unit
02/19/1997CN2247918Y 头戴式耳机 Headset
02/19/1997CN2247917Y Honeycomb audio amplifier
02/18/1997US5604813 Industrial headset
02/18/1997US5604809 Sound field control system
02/18/1997US5604337 Loudspeaker arrangement in television receiver cabinet
02/13/1997WO1997005755A1 Acoustic correction apparatus
02/13/1997WO1997005698A1 Automatically switched equalization circuit
02/12/1997EP0757883A1 Headset and method for making same
02/05/1997CN1142159A Device for preventing image-jitter resulted from output of acoustic amplifier of image displayer
02/04/1997US5600730 Swimming training device
02/04/1997US5600727 Determination of position
01/1997
01/30/1997WO1997003433A1 Apparatus for providing image with sound
01/30/1997CA2198367A1 Apparatus for presenting picture along with sound
01/29/1997EP0756437A2 Acoustic correction apparatus
01/23/1997WO1997002719A1 Audio signal reproduction apparatus
01/22/1997CN1140970A Loudspeaker device and television receiver using device
01/22/1997CN1140968A Headphone reproducing apparatus
01/08/1997EP0752193A1 Audio device
01/07/1997US5592558 Sound reproduction device
01/04/1997CA2180036A1 Combination earmuff radio headset (original radio earmuffs)
01/03/1997WO1997000594A1 Method and apparatus for spatially enhancing stereo and monophonic signals
12/1996
12/31/1996US5590094 System and methd for reproducing sound
12/25/1996CN2243756Y Earphone with round voice
12/24/1996US5588063 Personal multimedia speaker system
12/19/1996WO1996041497A1 Sampled chamber transducer with enhanced low frequency response
12/19/1996WO1996041496A1 Wearable audio system with enhanced performance
12/18/1996EP0749264A1 Loudspeaker
12/18/1996CN2243155Y Stereophonic voice box
12/12/1996DE19521057A1 Adaptor for connecting different plug connectors for entertainment- and audio-electronics
12/11/1996EP0746958A1 Sound-reproducing apparatus comprising an acoustic horn, and acoustic horn for use in the apparatus
12/11/1996EP0746393A1 Dual output multi function interface device for audio systems
12/10/1996US5583942 Device of the dummy head type for recording sound
12/10/1996US5583743 Appliance housing and speakers mounted thereto
12/05/1996DE19518862C1 Anti=distortion device for multi=channel signals
12/04/1996EP0745364A2 Ear protection device
12/03/1996US5581627 Convertible cover headphones
12/03/1996US5581626 Automatically switched equalization circuit
11/1996
11/27/1996EP0744881A2 Headphone reproducing apparatus
11/27/1996EP0744880A1 Loudspeaker device and television receiver using the device
11/21/1996WO1996037085A1 Loudspeaker device for video monitor and video monitor with loudspeaker device
11/21/1996DE19620010A1 Loudspeaker system with satellite housing
11/20/1996EP0743640A2 Audio processing unit for mixing L channel and R channel of CD/CD-I audio signal