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Class Information
Number: 381/1
Name: Electrical audio signal processing systems and devices > Binaural and stereophonic
Description: Subject matter where there are two or more independent sound signals which are to be separately reproduced so as to create a sense of depth.










Sub-classes under this class:

Class Number Class Name Patents
381/28 Amplifier 141
381/2 Broadcast or multiplex stereo 308
381/27 Center channel 156
381/23.1 Hearing aid 145
381/17 Pseudo stereophonic 792
381/19 Quadrasonic 202
381/26 Stereo sound pickup device (microphone) 161
381/300 Stereo speaker arrangement 299


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8175280 Generation of spatial downmixes from parametric representations of multi channel signals May. 8, 2012
8175279 Integrated vehicle audio system May. 8, 2012
8175287 Sound device May. 8, 2012
8175867 Voice communication apparatus May. 8, 2012
8170217 Audio signal processing apparatus May. 1, 2012
8160259 Audio signal processing apparatus, audio signal processing method, and program Apr. 17, 2012
8160258 Apparatus and method for encoding/decoding signal Apr. 17, 2012
8160277 Method for outputting audio signals and audio decoder Apr. 17, 2012
8160889 System for providing an acoustic signal with extended bandwidth Apr. 17, 2012
8155324 Voice processor, voice processing method, program, and information recording medium Apr. 10, 2012
8150060 Surround sound outputting device and surround sound outputting method Apr. 3, 2012
8150080 Method for adapting a hearing aid using a genetic feature Apr. 3, 2012
8135136 Audio signal enhancement Mar. 13, 2012
8130977 Cluster of first-order microphones and method of operation for stereo input of videoconferencing system Mar. 6, 2012
8130790 Digital communications system with variable-bandwidth traffic channels Mar. 6, 2012
8121570 Method and system for flexible FM tuning Feb. 21, 2012
8116465 Measuring apparatus and method, and recording medium Feb. 14, 2012
8111829 Method and apparatus for encoding and decoding stereo signal and multi-channel signal Feb. 7, 2012
8111839 Always on headwear recording system Feb. 7, 2012
8111845 System having a pulse width modulation device Feb. 7, 2012
8107631 Correlation-based method for ambience extraction from two-channel audio signals Jan. 31, 2012
8107632 Digital signal processing apparatus, method thereof and headphone apparatus Jan. 31, 2012
8103006 Spatial resolution of the sound field for multi-channel audio playback systems by deriving signals with high order angular terms Jan. 24, 2012
8103005 Primary-ambient decomposition of stereo audio signals using a complex similarity index Jan. 24, 2012
8094834 Remote auditory spatial communication aid Jan. 10, 2012
8094836 Multi-channel decoding systems capable of reducing noise and methods thereof Jan. 10, 2012
8090116 Vehicle directional electroacoustical transducing Jan. 3, 2012
8090109 Apparatus for processing audio signal and method thereof Jan. 3, 2012
8086448 Dynamic modification of a high-order perceptual attribute of an audio signal Dec. 27, 2011
8085940 Rebalancing of audio Dec. 27, 2011
8085939 Stereophonic sound reproduction system for compensating low frequency signal and method thereof Dec. 27, 2011
8081764 Audio decoder Dec. 20, 2011
8081762 Controlling the decoding of binaural audio signals Dec. 20, 2011
8077474 Variable equalizer apparatus Dec. 13, 2011
8077881 Sound device Dec. 13, 2011
8073144 Stereo balance interpolation Dec. 6, 2011
8069036 Method and apparatus for processing audio for playback Nov. 29, 2011
8059822 Method and device for actively correcting the acoustic properties of an acoustic space listening zone Nov. 15, 2011
8059823 Method and apparatus for enhancing auditory spatial perception Nov. 15, 2011
8059824 Joint sound synthesis and spatialization Nov. 15, 2011
8054980 Apparatus and method for rendering audio information to virtualize speakers in an audio system Nov. 8, 2011
8054979 Audio system for improving a signal to noise ratio Nov. 8, 2011
8054948 Audio experience for a communications device user Nov. 8, 2011
8050433 Apparatus and method to cancel crosstalk and stereo sound generation system using the same Nov. 1, 2011
8045840 Video-audio recording apparatus and method, and video-audio reproducing apparatus and method Oct. 25, 2011
8041040 Sound image control apparatus and sound image control method Oct. 18, 2011
8041057 Mixing techniques for mixing audio Oct. 18, 2011
8036397 Method for estimating the position of a sound source for online calibration of auditory cue to location transformations Oct. 11, 2011
8036389 Apparatus and method of canceling vocal component in an audio signal Oct. 11, 2011
8027476 Sound reproduction apparatus and sound reproduction method Sep. 27, 2011

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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