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Class Information
Number: 704/500
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Audio signal bandwidth compression or expansion
Description: Subject matter where there is either an expansion or reduction of the bandwidth required for transmission of a sound signal.

Sub-classes under this class:

Class Number Class Name Patents
704/502 Delay line 165
704/501 With content reduction encoding 588

Patents under this class:

Patent Number Title Of Patent Date Issued
8583426 Speech enhancement with voice clarity Nov. 12, 2013
8582900 Digital watermark embedding device, computer-readable recording medium, and digital watermark detecting device and computer-readable recording medium Nov. 12, 2013
8577687 Hierarchical coding of digital audio signals Nov. 5, 2013
8577686 Method and apparatus for decoding an audio signal Nov. 5, 2013
8577045 Apparatus and method for encoding a multi-channel audio signal Nov. 5, 2013
8576097 Coding using a mapping between a syntax element and a code word Nov. 5, 2013
8571878 Speech compression and decompression apparatuses and methods providing scalable bandwidth structure Oct. 29, 2013
8571876 Apparatus, method and computer program for obtaining a parameter describing a variation of a signal characteristic of a signal Oct. 29, 2013
8571875 Method, medium, and apparatus encoding and/or decoding multichannel audio signals Oct. 29, 2013
8566108 Synchronization of multiple real-time transport protocol sessions Oct. 22, 2013
8566107 Multi-mode method and an apparatus for processing a signal Oct. 22, 2013
8566106 Method and device for fast algebraic codebook search in speech and audio coding Oct. 22, 2013
8566105 Apparatus and method for encoding and decoding of audio data using a rounding off unit which eliminates residual sign bit without loss of precision Oct. 22, 2013
8560329 Signal compression method and apparatus Oct. 15, 2013
8560328 Encoding device, decoding device, and method thereof Oct. 15, 2013
8554569 Quality improvement techniques in an audio encoder Oct. 8, 2013
8554568 Apparatus and method of processing an audio signal, utilizing unique offsets associated with each coded-coefficients Oct. 8, 2013
8554553 Non-negative hidden Markov modeling of signals Oct. 8, 2013
8554545 Methods and apparatus to extract data encoded in media content Oct. 8, 2013
8553895 Device and method for generating an encoded stereo signal of an audio piece or audio datastream Oct. 8, 2013
8548816 Efficient scalefactor estimation in advanced audio coding and MP3 encoder Oct. 1, 2013
8548815 Efficient design of MDCT / IMDCT filterbanks for speech and audio coding applications Oct. 1, 2013
8548801 Adaptive time/frequency-based audio encoding and decoding apparatuses and methods Oct. 1, 2013
8548615 Encoder Oct. 1, 2013
8543392 Encoding device, decoding device, and method thereof for specifying a band of a great error Sep. 24, 2013
8543389 Coding/decoding of digital audio signals Sep. 24, 2013
8543386 Method and apparatus for decoding an audio signal Sep. 24, 2013
8538766 Audio decoder, audio object encoder, method for decoding a multi-audio-object signal, multi-audio-object encoding method, and non-transitory computer-readable medium therefor Sep. 17, 2013
8538765 Parameter decoding apparatus and parameter decoding method Sep. 17, 2013
8538764 Method and apparatus for delivery of aligned multi-channel audio Sep. 17, 2013
8538763 Speech enhancement with noise level estimation adjustment Sep. 17, 2013
8538762 Method and apparatus for encoding/decoding stereo audio Sep. 17, 2013
8538747 Method and apparatus for speech coding Sep. 17, 2013
8533571 Lossy coding of signals Sep. 10, 2013
8533550 Method and system to improve the performance and/or reliability of a solid-state drive Sep. 10, 2013
8532999 Apparatus and method for generating a multi-channel synthesizer control signal, multi-channel synthesizer, method of generating an output signal from an input signal and machine-readable stora Sep. 10, 2013
8532998 Selective bandwidth extension for encoding/decoding audio/speech signal Sep. 10, 2013
8532983 Adaptive frequency prediction for encoding or decoding an audio signal Sep. 10, 2013
8532982 Method and apparatus to encode and decode an audio/speech signal Sep. 10, 2013
8532801 Method and apparatus for processing digital audio signal and related computer program Sep. 10, 2013
8527283 Method and apparatus for estimating high-band energy in a bandwidth extension system Sep. 3, 2013
8527282 Method and an apparatus for processing a signal Sep. 3, 2013
8527265 Low-complexity encoding/decoding of quantized MDCT spectrum in scalable speech and audio codecs Sep. 3, 2013
8527264 Method and system for encoding audio data with adaptive low frequency compensation Sep. 3, 2013
RE44466 Method and device for packaging audio samples of a non-PCM encoded audio bitstream into a sequence of frames Aug. 27, 2013
8521540 Encoding and/or decoding digital signals using a permutation value Aug. 27, 2013
8521529 Method for segmenting audio signals Aug. 27, 2013
8521522 Audio coding/decoding method and apparatus using excess quantization information Aug. 27, 2013
8521520 Handoffs between different voice encoder systems Aug. 27, 2013
8521314 Hierarchical control path with constraints for audio dynamics processing Aug. 27, 2013

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