Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 5 - Stereophonic arrangements
Patents for H04R 5 - Stereophonic arrangements (11,598)
03/1999
03/23/1999US5887071 Dipole speaker headrests
03/23/1999US5887066 Headphone apparatus
03/23/1999CA2190665C Collapsible image derived differential microphone
03/18/1999WO1999013683A1 Method and device for reproducing a stereophonic audiosignal
03/18/1999WO1998059525A3 System for producing an artificial sound environment
03/18/1999DE19740400A1 Loudspeaker arrangement in vehicle door
03/17/1999CN1211156A Surounding voice inducing and feeding device for cinema earphone
03/16/1999US5883962 Method and apparatus for spatially enhancing stereo and monophonic signals
03/16/1999US5883961 Sound system
03/16/1999US5881390 Headband for use with personal stereo headphones
03/16/1999CA2132207C Dual element headphone
03/11/1999WO1999012385A1 An arrangement in acoustic headsets
03/11/1999DE19839250A1 Audio signal output apparatus for simultaneous output to loudspeaker and headphones
03/11/1999DE19739425A1 Verfahren und Anordnung zur Wiedergabe eines sterophonen Audiosignals Method and apparatus for reproducing an audio signal sterophonen
03/11/1999CA2300378A1 An arrangement in acoustic headsets
03/10/1999EP0847670B1 Display screens incorporating loudspeakers
03/10/1999EP0847669B1 Visual display means incorporating loudspeakers
03/10/1999EP0847663B1 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
03/10/1999CN1210438A Sound shifting method for broadcasting system
03/09/1999US5881160 Cap with audio system
03/04/1999WO1999011098A1 Down-fill speaker for large scale sound reproduction system
02/1999
02/25/1999WO1999009787A1 A distributed stereo system
02/25/1999WO1999008638A1 Noise cancellation system for active headsets
02/24/1999EP0898441A2 Method for inputting acoustic signals into an electric apparatus ans electric apparatus
02/24/1999EP0897650A1 Movement actuator
02/23/1999US5873736 Prenatal music belt
02/18/1999WO1999008478A1 Device including a built-in electroacoustic transducer for optimum speech reproduction
02/18/1999DE19735082A1 Low frequency loudspeaker for use under motor vehicle seat
02/17/1999EP0847567B1 A vending machine
02/16/1999US5872856 Surround speaker
02/10/1999EP0895702A1 Audio system that can be mounted on the body of a user
02/10/1999CN1042087C Loudspeaker system
02/09/1999US5870485 Computer visual display monitor with integral stereo speaker and directional microphone and method for construction
02/09/1999US5870484 Loudspeaker array with signal dependent radiation pattern
02/09/1999US5868475 Audiovisual equipment and casing thereof and method of producing the same
02/04/1999DE19733373A1 Earphone headset with decentralised transducer system
02/03/1999EP0895439A2 Sound collector
02/03/1999CN1207008A Sound field equalizer for loudspeak system
02/03/1999CN1206984A Method and device for automatic compensating tone
02/02/1999US5867582 Headphone
02/02/1999CA2134322C Hands free noise canceling headset
01/1999
01/28/1999WO1999004498A2 Method and apparatus for encoding and decoding multiple audio channels at low bit rates
01/28/1999DE19731217A1 Multi-function audio and video control box
01/26/1999US5864100 For use in a motor vehicle
01/20/1999EP0892582A2 Method and apparatus for error masking in multi-channel audio signals
01/19/1999US5862241 Adjustable headset
01/17/1999CA2209036A1 Wireless headphones with portable fm transmitter
01/13/1999EP0890293A1 Sampled chamber transducer with enhanced low frequency response
01/13/1999CN1204936A Diffraction acoustic system
01/13/1999CN1041687C Low-reflection type tube shaped speaker box foot rest
01/07/1999WO1999001015A1 Speaker enclosure
01/07/1999EP0839429A4 Television receiver with doors for its display screen which doors contain loudspeakers
01/07/1999DE19825779A1 Automatic compensation of tone in audio signal processing
01/05/1999US5857027 Loudspeaker
12/1998
12/30/1998WO1998059525A2 System for producing an artificial sound environment
12/30/1998WO1998059524A1 Audio system having ornamental light display
12/30/1998WO1998059430A1 Device and method for video recording with audio background
12/30/1998EP0886990A1 Process and device for transmitting sound
12/30/1998EP0698334B1 Stereophonic reproduction method and apparatus
12/29/1998US5854847 Speaker system for use in an automobile vehicle
12/23/1998WO1998058028A1 Protective coating composition with early water resistance
12/23/1998EP0886457A1 A ported speaker enclosure of a portable computer
12/23/1998EP0886456A2 Method and apparatus for operating a sound system
12/23/1998EP0885547A1 Amplified bicycle sound system
12/23/1998EP0885546A1 Wearable audio system with enhanced performance
12/22/1998US5851334 Method of producing casing for audiovisual equipment
12/15/1998US5850459 Headphone stereo control circuit
12/15/1998US5850457 Multi-dimensional sound reproduction system
12/15/1998US5850454 Method and apparatus for spatially enhancing stereo and monophonic signals
12/15/1998US5850453 Acoustic correction apparatus
12/10/1998WO1998035529A3 Elastomeric dielectric polymer film sonic actuator
12/10/1998DE19723644A1 Low emission headphones
12/09/1998CN2300227Y Integrated microphone head
12/09/1998CN1201181A Thin-film loudspeaker used in thin-film video-frequency monitor apparatus
12/08/1998US5847922 Portable computer docking station having improved speaker apparatus therein
12/03/1998WO1998054926A1 Loudspeaker array for enlarged sweet spot
12/02/1998EP0880871A1 Sound recording and reproduction systems
12/02/1998EP0880869A1 Portable speakers with phased arrays
12/02/1998EP0880827A1 Digital wireless speaker system
12/02/1998EP0653144B1 Concert audio system
12/02/1998CN2299430Y Automotive acoustics
12/02/1998CN1200645A Method and apparatus for error masking in multi-channel audio signals
12/02/1998CN1041047C Loud-speaker device with 180 deg.c sector radition
12/01/1998US5844816 Angle detection apparatus and audio reproduction apparatus using it
11/1998
11/26/1998WO1998053641A1 Multi-channel speaker systems integrated into storage-television stand cabinet configuration
11/25/1998CN1200009A System for processing audio surround signal
11/24/1998US5841879 Virtually positioned head mounted surround sound system
11/24/1998US5841877 Vehicle armrest transducing
11/24/1998US5841513 Apparatus for reproducing sound signals recorded on a motion picture film with digital sound track
11/19/1998WO1998052382A1 Improved artificial ear and auditory canal system and means of manufacturing the same
11/19/1998WO1998052295A1 Short-range wireless audio communications using induction
11/19/1998WO1998052289A1 Vehicular loudspeaker system
11/19/1998CA2287164A1 Improved artificial ear and auditory canal system and means of manufacturing the same
11/17/1998US5838808 Acoustical chair system
11/17/1998US5838537 Retractable speakers for portable computer
11/11/1998EP0876740A1 Loudspeaker device
11/11/1998EP0715575B1 Device for mobile telephones
11/11/1998CN1198650A Stereophonic separation degree booster
11/11/1998CN1198649A Sound device for equipment
11/10/1998US5835609 Ear protection device
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