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Class Information
Number: 381/2
Name: Electrical audio signal processing systems and devices > Binaural and stereophonic > Broadcast or multiplex stereo
Description: Subject matter for the broadcasting or transmission of two or more independent sound signals which are to be reproduced so as to create a sense of depth.

Sub-classes under this class:

Class Number Class Name Patents
381/15 Am or both am and angle final modulation 150
381/3 Fm final modulation 98

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8712058 Apparatus and method for encoding/decoding signal Apr. 29, 2014
8705747 Object-based 3-dimensional audio service system using preset audio scenes Apr. 22, 2014
8675899 Front surround system and method for processing signal using speaker array Mar. 18, 2014
8670575 Method and an apparatus for processing an audio signal Mar. 11, 2014
8670989 Appartus and method for coding and decoding multi-object audio signal with various channel Mar. 11, 2014
8654982 Reducing power consumption in sink devices by having sinks receive only left audio channel or right audio channel Feb. 18, 2014
8654988 Synchronization of signals for multiple data sinks Feb. 18, 2014
8619997 Receiving apparatus Dec. 31, 2013
8619996 Apparatus and method for transmitting digital multimedia broadcasting data, and method and apparatus for receiving digital multimedia broadcasting data Dec. 31, 2013
8620006 Center channel rendering Dec. 31, 2013
8620012 Apparatus and method for providing stereo effect in portable terminal Dec. 31, 2013
8615391 Method and apparatus to extract important spectral component from audio signal and low bit-rate audio signal coding and/or decoding method and apparatus using the same Dec. 24, 2013
8615092 Sound processing device, correcting device, correcting method and recording medium Dec. 24, 2013
8611438 Broadcast receiver Dec. 17, 2013
8588947 Apparatus for processing an audio signal and method thereof Nov. 19, 2013
8577045 Apparatus and method for encoding a multi-channel audio signal Nov. 5, 2013
8526622 Configurable filter for processing television audio signals Sep. 3, 2013
8520871 Method of and device for generating and processing parameters representing HRTFs Aug. 27, 2013
8477960 System for allowing selective listening on multiple televisions Jul. 2, 2013
8467721 Systems and methods for delivering a converted message to a vehicle media system Jun. 18, 2013
8457319 Stereo encoding device, stereo decoding device, and stereo encoding method Jun. 4, 2013
8452028 Dynamic surround channel volume control May. 28, 2013
RE44126 Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients Apr. 2, 2013
8411869 Method and apparatus for processing a media signal Apr. 2, 2013
8406717 Digital FM stereo receiver architecture to recover carrier information based on stereo or mono signals Mar. 26, 2013
8374882 Parametric stereophonic audio decoding for coefficient correction by distortion detection Feb. 12, 2013
8364497 Apparatus and method for coding and decoding multi-object audio signal with various channel Jan. 29, 2013
8364496 Signal recording and reproducing apparatus and method Jan. 29, 2013
8363842 Playback method and apparatus, program, and recording medium Jan. 29, 2013
8351611 Method and apparatus for processing a media signal Jan. 8, 2013
8351852 Method for transmitting object between devices having multi-radio interface Jan. 8, 2013
8340305 Audio encoding method and device Dec. 25, 2012
8340325 Method and an apparatus for decoding an audio signal Dec. 25, 2012
8331571 Method and device for controlling the broadcasting of audio contents by two loudspeakers Dec. 11, 2012
8325930 Signal processing apparatus and control method thereof Dec. 4, 2012
8311226 Method for assigning a plurality of audio channels to a plurality of speakers, corresponding computer program product, storage means and manager node Nov. 13, 2012
8306233 Transmission of audio signals Nov. 6, 2012
8300833 Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients Oct. 30, 2012
8295495 System and method for detecting rated maximum system deviation (RMSD) and alleviating RMSD mismatch Oct. 23, 2012
8280077 Stream segregation for stereo signals Oct. 2, 2012
8271289 Methods and apparatuses for encoding and decoding object-based audio signals Sep. 18, 2012
8271290 Encoding and decoding of audio objects Sep. 18, 2012
8264606 Direct digital encoding and radio frequency modulation for broadcast television applications Sep. 11, 2012
8254584 Method, medium, and system encoding/decoding multi-channel signal Aug. 28, 2012
8243969 Method of and device for generating and processing parameters representing HRTFs Aug. 14, 2012
8234120 Performing a safety analysis for user-defined voice commands to ensure that the voice commands do not cause speech recognition ambiguities Jul. 31, 2012
8233635 Audio signal transmitting apparatus, audio signal receiving apparatus, audio signal transmission system, audio signal transmission method, and program Jul. 31, 2012
8223975 Method and apparatus for multiplexing audio program channels from one or more received broadcast streams to provide a playlist style listening experience to users Jul. 17, 2012
8218785 Conversation assistant for noisy environments Jul. 10, 2012
8214223 Audio decoder and decoding method using efficient downmixing Jul. 3, 2012

1 2 3 4 5 6 7

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