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)
07/2003
07/24/2003US20030138106 Method and arrangement for recording and playing back sounds
07/23/2003CN1431849A Frequency conversion type minisize platform sounding equipment
07/22/2003US6597794 Portable electronic device having an external speaker chamber
07/22/2003US6597792 Headset noise reducing
07/17/2003US20030133577 Microphone unit and sound source direction identification system
07/16/2003CN1430453A System and method for providing back loundspeaker to head earphone
07/15/2003US6594370 Wireless personal communication apparatus in the form of a necklace
07/15/2003US6593809 Circuit for widening the stereobase in the reproduction of stereophonic sound signals
07/10/2003US20030130016 Headset with radio communication function and communication recording system using time information
07/09/2003EP1326159A1 Portable information processor and information processing method
07/09/2003EP1210844B1 Sensor array mounting
07/09/2003CN2560183Y Infrared frequency-modulated audio receiving three-purpose language learning earphone
07/09/2003CN2560182Y Headphone
07/09/2003CN1429048A Sound effect compensation device of rear sound channel
07/08/2003US6590997 Files and methods employing common information in both header and steganographic embedding
07/08/2003US6590982 Wireless stereo center speaker system
07/03/2003WO2003055272A1 Peer-based location determination
07/03/2003US20030123690 Loudspeaker mounting system
07/03/2003US20030123676 Method of deriving a head-related transfer function
07/03/2003US20030123673 Electronic sound equipment
07/03/2003DE20302087U1 Audio headset has an integrated MP3 player recorder control unit
07/03/2003DE20301449U1 Stereo headphones built into a hat or cap
07/02/2003EP1324177A1 Portable computer
07/02/2003EP1002444B1 An arrangement in acoustic headsets
07/02/2003EP0692169B1 Unidirectional ear microphone with multiple openings
07/02/2003CN2559022Y Functional audio system switcher for multifunctional hall digital cinema
07/01/2003US6587821 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith
06/2003
06/26/2003WO2003053096A1 Headset
06/26/2003US20030119523 Peer-based location determination
06/26/2003US20030118206 Combined speaker/dome lamp
06/26/2003US20030118198 Biaxial parametric speaker
06/26/2003US20030118197 Communication system using short range radio communication headset
06/26/2003US20030118196 Wireless digital audio system
06/25/2003CN1426267A Acoustic correction equipment
06/25/2003CN1112624C Electronic device
06/24/2003US6584202 Method and device for reproducing a stereophonic audiosignal
06/24/2003US6583533 Electroactive polymer electrodes
06/19/2003US20030114116 Rear entertainment system
06/18/2003EP1319323A2 A method of audio signal processing for a loudspeaker located close to an ear
06/17/2003US6580985 Vehicle audio adapter
06/17/2003US6580799 Keyboard comprising a loudspeaker
06/17/2003US6578805 Microphone holder instrument, and support plate for supporting at least a pair of microphone holder instruments
06/12/2003WO2003049492A1 Ear cover with sound receiving element
06/12/2003WO2002051199A3 Programmable headset, programming apparatus and method
06/12/2003US20030108216 Means for compensating rear sound effect
06/12/2003US20030108211 Vehicle having a sound-radiating element
06/12/2003US20030108210 Vechicle having loudspeaker
06/11/2003EP1318692A1 Headphone
06/10/2003US6577738 Parametric virtual speaker and surround-sound system
06/10/2003US6577736 Method of synthesizing a three dimensional sound-field
06/05/2003WO2003047310A1 Method and apparatus for audio input to implantable hearing aids
06/05/2003US20030103636 Vehicle-mounted stereophonic sound field reproducer/silencer
06/05/2003US20030103634 Vehicle audio system and reproduction method using same
06/05/2003US20030103633 Kids ear saver headphone adapter
06/04/2003EP1316240A1 A synchronised binaural hearing system
06/04/2003CN1422101A 改进的耳机 Improved headphones
06/04/2003CN1110986C AV amplifier
05/2003
05/28/2003CN1421113A Automatic mono/stereo detection
05/28/2003CN1420496A Digital music playback music centre
05/28/2003CN1110191C Device for preventing image jitter resulted from output of acoustic amplifier of image display
05/22/2003US20030097037 Method and apparatus for audio input to implantable hearing aids
05/21/2003CN1109373C Socket, reproducing apparatus and data communication system
05/20/2003US6567780 Audio with hidden in-band digital data
05/20/2003US6567655 Car radio system
05/20/2003US6567535 Steganographic system with changing operations
05/20/2003US6567525 Supra aural active noise reduction headphones
05/20/2003US6567359 Recording and playback of multi-channel digital audio having different resolutions for different channels
05/20/2003CA2266362C Vehicular loudspeaker system
05/15/2003US20030091209 Headphone
05/15/2003US20030091195 Method of and apparatus for producing apparent multidimensional sound
05/14/2003EP1310139A2 Stereo audio processing device
05/14/2003CN2550987Y 耳机 Headphone
05/13/2003US6563869 Digital signal processing circuit and audio reproducing device using it
05/08/2003WO2003039191A1 Hands-free microphone and speaker phone accessory
05/08/2003WO2003039190A1 Headphone
05/08/2003WO2002019762A3 Method for reproducing audio signals of at least two different sources
05/08/2003WO2002001916A3 Sound reproduction systems
05/07/2003EP0875126A4 Surround sound processor with improved control voltage generator
05/07/2003CN2549677Y Stereo ear phone plug with hub
05/07/2003CN1416661A 扬声器箱 Speaker box
05/07/2003CN1108083C Headphone reproducing appts.
05/06/2003US6560350 Methods for detecting alteration of audio
05/06/2003US6560343 Speaker system
05/02/2003EP1307069A2 Casing for an electronic device and process of assembly of such a casing
05/02/2003EP1307068A1 Casing for an electronic device and process of assembly of such a casing
05/01/2003WO2002087279A3 Matching an acoustic driver to an acoustic load in an acoustic resonant system
05/01/2003US20030081796 Audio routing for an automobile
05/01/2003US20030081795 Speaker mounting structure of head rest in vehicle
04/2003
04/30/2003CN1414816A Head-hoop earphone device
04/30/2003CN1414781A Casing of electronic device and method for assembing the casing
04/29/2003US6556683 Remote turn-on circuit for automobile audio amplifier
04/29/2003US6555042 Method of making a vehicle headliner assembly with integral speakers
04/29/2003US6554097 Low-radiation headphone
04/29/2003CA2410175A1 Audio routing for an automobile
04/24/2003WO2003034782A2 Modular headset for cellphone or mp3 player
04/24/2003US20030076971 Casing for an electronic device and process for assembly of such a casing
04/23/2003EP1013141B1 Method and device for reproducing a stereophonic audiosignal
04/23/2003CN1106209C Electronic gaming device capable of generating pseudo-stereophonic sound
04/17/2003WO2003032538A2 Sound data output and manipulation using haptic feedback
04/17/2003US20030073460 Modular headset for cellphone or MP3 player
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