Patents
Patents for H04S 1 - Two-channel systems (4,182)
08/2005
08/23/2005US6934651 Method for synchronizing signals acquired from unsynchronized sensors
08/18/2005WO2005076468A1 Amplifier and acoustic system
08/18/2005DE102004063576A1 Verfahren, System und computerlesbares Medium zum Erzeugen eines Mehrkanal-Audiosignals aus einem monophonen Audiosignal Method, system and computer readable medium for generating a multi-channel audio signal from a monophonic audio signal
08/16/2005US6931291 Method and apparatus for frequency-domain downmixing with block-switch forcing for audio decoding functions
08/11/2005WO2005072349A2 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems
08/11/2005US20050177360 Audio coding
08/11/2005DE10330808B4 Konferenzeinrichtung und Verfahren zur Mehrpunktkommunikation Conference facilities and methods for multi-point communication
08/10/2005EP1562402A2 Sound pickup apparatus, sound pickup method, and recording medium
08/10/2005EP1562401A2 Sound reproduction apparatus and sound reproduction method
08/10/2005CN1214324C Method and system for recording and reproducing information data
08/09/2005US6928179 Audio processing apparatus
08/09/2005US6928168 Transparent stereo widening algorithm for loudspeakers
08/04/2005WO2005072011A1 Device having a point and a spatial sound generating-means for providing stereo sound sensation over a large area
08/03/2005CN1650528A Multi-channel downmixing device
08/03/2005CN1649448A Digital signal processing apparatus, method thereof and headphone apparatus
07/2005
07/28/2005US20050165502 Method, system and computer-readable medium for generating a multi-channel audio signal from a monophonic audio signal
07/28/2005US20050163329 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems
07/28/2005US20050163322 Apparatus and method for playing and storing three-dimensional stereo sound in communication terminal
07/27/2005EP1557072A2 Embedded data signaling
07/27/2005EP1238479A4 Method and apparatus for suppressing acoustic background noise in a communication system
07/27/2005CN1647582A Loudspeaker with GPS receiver
07/27/2005CN1647581A Audio distribution
07/21/2005WO2005067348A1 Audio signal supplying apparatus for speaker array
07/21/2005WO2005067347A1 Speaker apparatus
07/21/2005US20050157884 Audio encoding apparatus and frame region allocation circuit for audio encoding apparatus
07/21/2005DE10360511A1 Wireless transmission device for surround sound stereo system, has rear crossover separating subwoofer signal from left and right surround signals, and sending subwoofer, left and right signals to respective speakers for playback
07/20/2005EP1555852A2 Apparatus and method for playing and storing three-dimensional stereo sound in communication terminal
07/20/2005EP1554910A1 Dynamic binaural sound capture and reproduction
07/15/2005CA2493045A1 Apparatus and method for playing and storing three-dimensional stereo sound in communication terminal
07/14/2005US20050152554 Method and apparatus for processing audio signals
07/13/2005EP1552723A1 Apparatus and method for adapting audio signal according to user's preference
07/13/2005CN1638533A Sound heterodyne apparatus and method
07/12/2005US6917915 Memory sharing scheme in audio post-processing
07/07/2005WO2005062673A1 Systems and methods of spatial image enhancement of a sound source
07/07/2005WO2005062672A1 Acoustic signal reproducing method
07/07/2005WO2005062671A1 Portable terminal speaker characteristic compensation method
07/07/2005US20050147262 Method for decreasing the dynamic range of a signal and electronic circuit
07/07/2005US20050147261 Head relational transfer function virtualizer
07/07/2005US20050147254 Sub-harmonic generator and stereo expansion processor
07/06/2005EP1551205A1 Head relational transfer function virtualizer
07/06/2005CN1636423A Multichannel echo canceller system using active audio matrix coefficients
07/06/2005CN1636422A Process for preparing beta-diketone compound and process for preparing metal complex thereof
07/06/2005CN1636421A Multi-channel stereo converter for deriving a stereo surround and/or audio centre signal
07/05/2005US6914988 Audio reproducing device
06/2005
06/30/2005US20050141735 Speaker system to control directivity of a speaker unit using a plurality of microphones and a method thereof
06/30/2005US20050141724 Loudspeaker positions select infrastructure signal
06/29/2005EP1547439A2 Bass management systems
06/29/2005EP1547438A1 Method for processing audio signals and audio processing system for applying this method
06/29/2005EP1547437A2 Sound reproduction system, program and data carrier
06/29/2005EP1547436A2 Generation of a sound signal
06/29/2005EP1546916A2 Method and system for processing a sound field representation
06/28/2005US6912500 Facilitation of speech recognition in user interface
06/23/2005WO2005057984A1 Audio signal processing device and audio signal reproduction system
06/23/2005WO2005032209A3 Method and arrangement for locating aural events such that they have a constant spatial direction using headphones
06/23/2005US20050135643 Apparatus and method of reproducing virtual sound
06/23/2005US20050135634 Wireless transmission device of surround sound stereo system
06/22/2005EP1545154A2 A virtual surround sound device
06/22/2005CN1630434A Apparatus and method of reproducing virtual sound
06/21/2005US6909924 Method and apparatus for shifting pitch of acoustic signals
06/21/2005US6909787 Method and related apparatus for stereo vocal cancellation
06/16/2005US20050131562 Apparatus and method for reproducing three dimensional stereo sound for communication terminal
06/16/2005US20050129258 Narrow profile speaker configurations and systems
06/16/2005US20050129251 Method and device for selecting a sound algorithm
06/16/2005US20050129248 Systems and methods of spatial image enhancement of a sound source
06/15/2005CN1627648A 无线音乐播放器 Wireless music player
06/08/2005CN1625302A Sound field reproduction apparatus and sound field space reproduction system
06/08/2005CN1625185A Apparatus and method for reproducing three dimensional stereo sound for communication terminal
06/08/2005CN1205843C Low-frequency audio enhancement system and method
06/08/2005CN1205842C Encoding method and device, decoding method and device
06/08/2005CN1205755C Audio decoding method and apparatus which recover high frequency component with small computation
06/08/2005CN1205753C Integrated audio mixer
06/02/2005WO2005051037A1 Sonic emitter arrangements
06/02/2005US20050120130 Data output device, data transmitting device, data processing system, data output method, data transmitting method, data processing method, their programs and recording media storing these programs
06/02/2005US20050119772 Digital signal processing apparatus, method thereof and headphone apparatus
06/02/2005US20050117771 Sound production systems and methods for providing sound inside a headgear unit
06/02/2005US20050117762 Binaural sound localization using a formant-type cascade of resonators and anti-resonators
06/02/2005US20050117761 Headphone apparatus
06/02/2005US20050117759 Audio downmix apparatus with dynamic-range control and method for the same
06/02/2005US20050117753 Sound field reproduction apparatus and sound field space reproduction system
06/01/2005EP1536667A2 Digital signal processing apparatus, method thereof and headphone apparatus
05/2005
05/26/2005US20050114121 Perfected device and method for the spatialization of sound
05/26/2005US20050113953 Method for synchronizing signals acquired from unsynchronized sensors
05/26/2005US20050113948 Digital-to-analog audio conversion
05/25/2005EP1532801A2 Telecommunication terminal comprising a memory for storing acoustic effect data
05/25/2005EP1532734A2 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
05/25/2005CN1620196A Sound reproducing apparatus and sound reproducing method
05/19/2005US20050105742 Method and apparatus for emulating audio effect
05/18/2005EP1531609A1 Apparatus and method for reproducing three dimensional stereo sound for communication terminal
05/11/2005CN1615580A A method for decreasing the dynamic range of a signal and electronic circuit
05/10/2005CA2279117C Processing method for localization of acoustic image for audio signals for the left and right ears
05/04/2005EP1528719A1 Data output device, data transmitting device, data processing system, data output method, data transmitting method, data processing method, their programs and recording media storing these programs
05/03/2005US6889085 Method and system for forming an acoustic signal from neural timing difference data
04/2005
04/28/2005US20050089179 Car audio amplifier with remote control panel
04/28/2005US20050089174 Stereophonic Device for Headphones and Audio Signal Processing Program
04/27/2005CN1610451A Multichannel audio frequency output amplitude regulating device
04/27/2005CN1609948A Method and apparatus for signal discrimination
04/21/2005DE19844630B4 Kinosystem sowie Verfahren zur Verarbeitung von Tieftonsignalen für ein Kinosystem Theater system and method for processing Tieftonsignalen for a cinema system
04/20/2005EP1523863A1 Audio coding
04/20/2005EP1523862A1 Audio coding
04/20/2005CN1607742A Voice and control signal transmission method in wireless microphone and transmitter therefor
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