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Class Information
Number: 704/217
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Time > Correlation function > Autocorrelation
Description: Subject matter wherein the relationships are between different speech










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8670968 System and method for ranking a posting Mar. 11, 2014
8666752 Apparatus and method for encoding and decoding multi-channel signal Mar. 4, 2014
8660842 Enhancing speech recognition using visual information Feb. 25, 2014
8583425 Methods, systems, and computer readable media for fricatives and high frequencies detection Nov. 12, 2013
8583427 Voice and data exchange over a packet based network with voice detection Nov. 12, 2013
8577673 CELP post-processing for music signals Nov. 5, 2013
8577045 Apparatus and method for encoding a multi-channel audio signal Nov. 5, 2013
8566085 Preprocessing method, preprocessing apparatus and coding device Oct. 22, 2013
8566106 Method and device for fast algebraic codebook search in speech and audio coding Oct. 22, 2013
8560313 Transient noise rejection for speech recognition Oct. 15, 2013
8560329 Signal compression method and apparatus Oct. 15, 2013
8548803 System and method of processing a sound signal including transforming the sound signal into a frequency-chirp domain Oct. 1, 2013
8535236 Apparatus and method for analyzing a sound signal using a physiological ear model Sep. 17, 2013
8442817 Apparatus and method for voice activity detection May. 14, 2013
8433582 Method and apparatus for estimating high-band energy in a bandwidth extension system Apr. 30, 2013
8396705 Extraction and matching of characteristic fingerprints from audio signals Mar. 12, 2013
8396716 Signal compression method and apparatus Mar. 12, 2013
8315854 Method and apparatus for detecting pitch by using spectral auto-correlation Nov. 20, 2012
8296159 Apparatus and a method for calculating a number of spectral envelopes Oct. 23, 2012
8255228 Efficient use of phase information in audio encoding and decoding Aug. 28, 2012
8255214 Signal processing method and processor Aug. 28, 2012
8238691 Method of and apparatus for image analysis Aug. 7, 2012
8229739 Speech processing apparatus and method Jul. 24, 2012
8219390 Pitch-based frequency domain voice removal Jul. 10, 2012
8214201 Pitch range refinement Jul. 3, 2012
8190427 Compander which uses adaptive pre-emphasis filtering on the basis of linear prediction May. 29, 2012
8165873 Speech analysis apparatus, speech analysis method and computer program Apr. 24, 2012
8155972 Seamless audio speed change based on time scale modification Apr. 10, 2012
8150683 Apparatus, method, and computer program for comparing audio signals Apr. 3, 2012
8131541 Two microphone noise reduction system Mar. 6, 2012
8086449 Vocal fry detecting apparatus Dec. 27, 2011
8069034 Method and apparatus for encoding an audio signal using multiple coders with plural selection models Nov. 29, 2011
8065140 Method and system for determining predominant fundamental frequency Nov. 22, 2011
8065141 Apparatus and method for processing signal, recording medium, and program Nov. 22, 2011
8050910 Pitch extraction with inhibition of harmonics and sub-harmonics of the fundamental frequency Nov. 1, 2011
8024181 Scalable encoding device and scalable encoding method Sep. 20, 2011
7949520 Adaptive filter pitch extraction May. 24, 2011
7933767 Systems and methods for determining pitch lag for a current frame of information Apr. 26, 2011
7933366 Channel estimation method and system using linear correlation based interference cancellation (LCIC) combined with decision-feedback-equalization (DFE) Apr. 26, 2011
7912712 Method and apparatus for encoding and decoding of background noise based on the extracted background noise characteristic parameters Mar. 22, 2011
7908137 Signal processing device, signal processing method, and program Mar. 15, 2011
7877253 Systems, methods, and apparatus for frame erasure recovery Jan. 25, 2011
7869990 Pitch prediction for use by a speech decoder to conceal packet loss Jan. 11, 2011
7844452 Sound quality control apparatus, sound quality control method, and sound quality control program Nov. 30, 2010
7756715 Apparatus, method, and medium for processing audio signal using correlation between bands Jul. 13, 2010
7752038 Pitch lag estimation Jul. 6, 2010
7742916 Method and devices for evaluating transmission times and for processing a voice signal received in a terminal connected to a packet network Jun. 22, 2010
7711553 Methods and apparatus for blind separation of multichannel convolutive mixtures in the frequency domain May. 4, 2010
7672836 Method and apparatus for estimating pitch of signal Mar. 2, 2010
7668713 MELP-to-LPC transcoder Feb. 23, 2010

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