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)
10/2000
10/26/2000DE19963976A1 Lautsprechersystem für einen Bildschirm Speaker system for a display screen
10/25/2000CN1271243A Loudspeaker device of displayer
10/24/2000US6137890 Lumped parameter resonator of a piezoelectric speaker
10/19/2000WO2000035245A3 Waterproof housing cover for hospital bed
10/18/2000CN2402086Y Vertical low resonance frequency sound column
10/17/2000US6134335 Display device with microphone
10/11/2000CN2400990Y Earphone to position stereo
10/11/2000CN2400989Y 声柱 Sound Column
10/11/2000CN2400988Y Floor miniature speaker
10/05/2000DE19923601C1 Echo compensation device for hands-free telephone, uses calibration signal for providing coefficients for echo replicator simulating loudspeaker-room-microphone system
10/04/2000CN2399894Y Super-thin plane horn with improved struture
10/04/2000CN1269119A Down-fill speaker for large scale sound reproduction system
10/04/2000CN1057187C Cross complementary voice box with low frequency low limit and small distortion
10/03/2000CA2012487C Wireless headphone
09/2000
09/27/2000EP1039748A2 Television receiver
09/26/2000US6125189 Electroacoustic transducer of digital type
09/21/2000WO2000022876A9 Point source speaker system
09/20/2000EP1037501A1 Public addressing system
09/20/2000CN2397691Y Loudspeaker box with stereophonic device
09/20/2000CN1267179A Device for mounting loudspeaker to display device
09/19/2000US6122386 Adjustable speaker system with reflector
09/12/2000US6118876 Surround sound speaker system for improved spatial effects
09/06/2000CN2395490Y 音频处理电路 Audio processing circuit
09/06/2000CN2395489Y Small active heavy bass voice box
09/06/2000CN2395488Y Audiovisual sound equipment
09/06/2000CN2395487Y Processing circuit for automobile sound
08/2000
08/30/2000CN2394395Y Speaker box
08/29/2000US6111755 Graphic audio equalizer for personal computer system
08/24/2000WO2000033611A8 Personal three dimensional thermal location to three dimensional sound imaging headset system
08/24/2000DE19906244A1 Virtual reality transmission system, relaying scene perceived by e.g. robot or telechir to operator, includes stereoscopic camera pair turning in sympathy with operators head movement
08/23/2000EP1029282A2 Interactive devices and methods
08/23/2000CN2393288Y Loudspeaker having unintermittent treble protection
08/23/2000CN1264533A Method and apparatus for encoding and decoding multiple audio channels at low bit rates
08/23/2000CN1264265A Technology for manufacturing audio-video products with space sound
08/23/2000CN1264264A Method for generating space sound signals by recording sound waves before ear
08/22/2000US6108430 Headphone apparatus
08/22/2000US6108427 Method and apparatus for eliminating audio feedback
08/22/2000US6105443 Dummy sound absorber representing a seated human for measuring sound absorption power of a theater chair
08/17/2000WO2000048427A2 Method and system of compensating for boundary effects on a primary sound source
08/17/2000DE19906420A1 Loudspeaker unit has housing connecting rails movable vertically with respect to each other, and vertical housing position can be controlled to adapt sound reproduction optimally to user's sitting position
08/16/2000CN1263427A Cover type earphone structure without sound-conductibility hearing loss and impact noise
08/16/2000CN1055601C Stereophonic reproduction method and apparatus
08/15/2000US6104823 Speaker system
08/15/2000US6104820 Musical massager
08/15/2000US6104819 Combination speaker and earphone apparatus
08/10/2000WO2000046786A2 A headphone comprising bending-wave loudspeakears
08/10/2000DE19904384A1 Audio device for wearing on the head, has base body with battery for wearing on head, radio device and at least one loudspeaker arranged close to ear when device is being worn on head
08/09/2000EP1025743A1 Utilisation of filtering effects in stereo headphone devices to enhance spatialization of source around a listener
08/08/2000US6101256 Self-contained helmet communication system
08/08/2000US6098743 Acoustical speaker housing and method of installation
08/02/2000EP1023817A1 Sound-reproducing device mountable on the body of a user
08/02/2000EP1023780A1 Vehicular loudspeaker system
08/02/2000EP1023716A1 A method and a system for processing a virtual acoustic environment
08/02/2000EP1023015A1 Noise cancellation system for active headsets
08/02/2000CN2390359Y Power amplifying device capable of direct mating 5.1 sound channel signal
08/02/2000CN2390358Y Power amplifying device capable of outputting superheavy bass sound channel signal
08/01/2000US6097822 Vest garment for acoustic stimulation of fetus
08/01/2000US6097671 Pinwheel transducer array
07/2000
07/25/2000US6094496 Vehicle seat headrest incorporating speakers and an extensible/retractable microphone
07/20/2000DE19929611C1 Cabinet or shelf system, e.g. for books and magazines, has loudspeaker boxes on drawer-like shelf bases that radiate sound forwards towards listener and rearwards towards rear wall
07/20/2000DE19900961A1 Verfahren und Vorrichtung zur Wiedergabe von Mehrkanaltonsignalen A method and apparatus for reproducing multi-channel audio
07/19/2000EP1021062A2 Method and apparatus for the reproduction of multi-channel audio signals
07/19/2000CN1054724C Stereophonic separation degree booster
07/18/2000US6091832 Wearable personal audio loop apparatus
07/18/2000US6091421 Displaying autostereograms of various depths until proper 3D perception is achieved
07/13/2000WO2000041438A1 Rear channel home theater wireless speaker system
07/13/2000WO2000041433A1 Loudspeaker mounting system comprising a flexible arm
07/12/2000EP1018288A1 Car radio system
07/12/2000CN1259840A Adjustable earphone with microphone
07/12/2000CN1054490C Loud speaker device and TV receiver using same
07/05/2000EP1017251A2 Acoustic device
07/05/2000EP1017249A1 Method and device for sound recording and reproduction with natural feeling of sound space
07/05/2000EP1016320A2 Method and apparatus for encoding and decoding multiple audio channels at low bit rates
07/05/2000EP1016316A1 Method or wireless transmission of audio signals, audio equipment and audio playback device
07/05/2000EP1016315A1 Sound capturing method and device
07/05/2000CN1259005A Earphone device for providing dynamic voice with vibration and method for the same device
07/05/2000CN1054254C Loudspeaker system of TV
06/2000
06/29/2000WO2000038476A2 Motor vehicle audio system
06/28/2000EP1013141A1 Method and device for reproducing a stereophonic audiosignal
06/28/2000EP0873667A4 Sound system
06/28/2000CN1258427A Speaker and electronic apparatus using speaker
06/27/2000US6081604 Electric sound converter
06/27/2000US6081421 Portable computer having loudspeakers in enclosures formed by gaskets located between a keyboard, a printed circuit board, and a frame
06/27/2000US6079515 Speaker enclosure
06/21/2000DE19858836A1 Vehicle audio system has separate amplifier for low audio frequencies supplied with significantly higher operating voltage than amplifier(s) for other audio frequencies
06/21/2000CN2384391Y Electricity-sound conversion Hi-Fi device
06/15/2000WO2000035245A2 Waterproof housing cover for hospital bed
06/15/2000WO2000035243A2 Noise reducing headsets
06/15/2000CA2356646A1 Waterproof housing cover for hospital bed
06/14/2000CN1256757A Capacitance detection system and method
06/14/2000CN1256756A Impedance detection apparatus and method
06/13/2000US6075868 Apparatus for the creation of a desirable acoustical virtual reality
06/08/2000WO2000033611A1 Personal three dimensional thermal location to three dimensional sound imaging headset system
06/07/2000CN2382188Y Audio device
06/07/2000CN1255819A Earphone device
06/02/2000WO2000032011A2 Loudspeaker with statuary-like diaphragm
05/2000
05/31/2000EP1004222A1 A distributed stereo system
05/31/2000CN1255036A Multitone ring and driver transducer
05/30/2000US6069962 Point source speaker system
05/30/2000US6069960 Connector device for information-handling apparatus and connector device for stereophonic audio/video apparatus
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