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Browse by Category: Main > Electrical & Energy
Class Information
Number: 381/27
Name: Electrical audio signal processing systems and devices > Binaural and stereophonic > Center channel
Description: Subject matter where a third sound signal is derived from combination of two independent sound signals.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8705769 Two-to-three channel upmix for center channel derivation Apr. 22, 2014
8675881 Estimation of synthetic audio prototypes Mar. 18, 2014
8611545 Surround generation apparatus Dec. 17, 2013
8605914 Nonlinear filter for separation of center sounds in stereophonic audio Dec. 10, 2013
8600533 Extraction of a multiple channel time-domain output signal from a multichannel signal Dec. 3, 2013
8526484 Content reproduction apparatus, content receiving apparatus, method of reproducing content, program, and content reproduction system Sep. 3, 2013
8494183 Audio processing apparatus Jul. 23, 2013
8467549 Audio information processing apparatus and audio information processing method Jun. 18, 2013
RE44261 Volume control for audio signals Jun. 4, 2013
8446533 Television apparatus and method for controlling the same May. 21, 2013
8411883 Loudspeaker apparatus and speaker system Apr. 2, 2013
8391521 Audio reproduction apparatus and method Mar. 5, 2013
8374357 Audio output device Feb. 12, 2013
8340303 Method and apparatus to generate spatial stereo sound Dec. 25, 2012
8320592 Apparatus and method of reproducing virtual sound of two channels based on listener's position Nov. 27, 2012
8320590 Device, method, program, and system for canceling crosstalk when reproducing sound through plurality of speakers arranged around listener Nov. 27, 2012
8315397 Microphone device and portable recorder comprising same Nov. 20, 2012
8315403 Method for controlling directivity of loudspeaker apparatus and audio reproduction apparatus Nov. 20, 2012
8295496 Audio signal processing Oct. 23, 2012
8270618 Compatible multi-channel coding/decoding Sep. 18, 2012
8265283 Acoustic processing device and acoustic processing method Sep. 11, 2012
8259970 Adaptive remastering apparatus and method for rear audio channel Sep. 4, 2012
8238560 Dialogue enhancements techniques Aug. 7, 2012
8229143 Stereo expansion with binaural modeling Jul. 24, 2012
8223993 Signal conditioner for subwoofers Jul. 17, 2012
8213622 Binaural sound localization using a formant-type cascade of resonators and anti-resonators Jul. 3, 2012
8208639 Audio output device and audio output method Jun. 26, 2012
8204234 Apparatus and method for generating binaural beat from stereo audio signal Jun. 19, 2012
8204235 Center channel positioning apparatus Jun. 19, 2012
8199941 Method of identifying speakers in a home theater system Jun. 12, 2012
8194863 Speaker system Jun. 5, 2012
8180062 Spatial sound zooming May. 15, 2012
8160260 Circuit and program for processing multichannel audio signals and apparatus for reproducing same Apr. 17, 2012
8139774 Multi-element directional acoustic arrays Mar. 20, 2012
8139798 Sound reproducing apparatus Mar. 20, 2012
8130988 Method and apparatus for reproducing audio signal Mar. 6, 2012
8126173 System and method for expanding multi-speaker playback Feb. 28, 2012
RE43132 Volume control for audio signals Jan. 24, 2012
8086334 Extraction of a multiple channel time-domain output signal from a multichannel signal Dec. 27, 2011
8077474 Variable equalizer apparatus Dec. 13, 2011
8045719 Rendering center channel audio Oct. 25, 2011
8031879 Sound processing system using spatial imaging techniques Oct. 4, 2011
8000485 Virtual audio processing for loudspeaker or headphone playback Aug. 16, 2011
7978865 Audio processing apparatus Jul. 12, 2011
7970144 Extracting and modifying a panned source for enhancement and upmix of audio signals Jun. 28, 2011
7945054 Method and apparatus to reproduce wide mono sound May. 17, 2011
7920710 Loudspeaker apparatus Apr. 5, 2011
7903823 Apparatus and method for effecting sound stage expansion Mar. 8, 2011
7894611 Spatial disassembly processor Feb. 22, 2011
7813824 Transmission signal processing device for video signal and multi-channel audio signal, and video and audio reproducing system including the same Oct. 12, 2010

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