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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
8521098 Receiving apparatus, transmitting apparatus, receiving method, transmitting method, communications system, and communication method Aug. 27, 2013
8520857 Head-related transfer function measurement method, head-related transfer function convolution method, and head-related transfer function convolution device Aug. 27, 2013
8515771 Identifying an encoding format of an encoded voice signal Aug. 20, 2013
8515770 Method and apparatus for encoding and decoding excitation patterns from which the masking levels for an audio signal encoding and decoding are determined Aug. 20, 2013
8515769 Single channel EVRCx, ISLP and G.711 transcoding in packet networks Aug. 20, 2013
8515768 Enhanced audio decoder Aug. 20, 2013
8515767 Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs Aug. 20, 2013
8515744 Method for encoding signal, and method for decoding signal Aug. 20, 2013
8515741 System (s), method (s) and apparatus for reducing on-chip memory requirements for audio decoding Aug. 20, 2013
8515083 Methods for improved performance of prediction based multi-channel reconstruction Aug. 20, 2013
8510121 Multiple description audio coding and decoding method, apparatus, and system Aug. 13, 2013
8510120 Apparatus and method of processing an audio signal, utilizing unique offsets associated with coded-coefficients Aug. 13, 2013
8510119 Apparatus and method of processing an audio signal, utilizing unique offsets associated with coded-coefficients Aug. 13, 2013
8509931 Progressive encoding of audio Aug. 13, 2013
8504378 Stereo acoustic signal encoding apparatus, stereo acoustic signal decoding apparatus, and methods for the same Aug. 6, 2013
8504377 Method and an apparatus for processing a signal using length-adjusted window Aug. 6, 2013
8504376 Methods and apparatuses for encoding and decoding object-based audio signals Aug. 6, 2013
8504184 Combination device, telecommunication system, and combining method Aug. 6, 2013
8503535 Rounding noise shaping for integer transform based encoding and decoding Aug. 6, 2013
8498876 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks Jul. 30, 2013
8498875 Apparatus and method for encoding and decoding enhancement layer Jul. 30, 2013
8498874 Audio signal encoding employing interchannel and temporal redundancy reduction Jul. 30, 2013
8498863 Method and apparatus for audio source separation Jul. 30, 2013
8498422 Parametric multi-channel audio representation Jul. 30, 2013
8495115 Apparatus and method for low complexity combinatorial coding of signals Jul. 23, 2013
8494866 Universal container for audio data Jul. 23, 2013
8494865 Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signal Jul. 23, 2013
8494864 Multi-mode scheme for improved coding of audio Jul. 23, 2013
8494863 Audio encoder and decoder with long term prediction Jul. 23, 2013
8494840 Ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners Jul. 23, 2013
8489405 Compression coding and decoding method, coder, decoder, and coding device Jul. 16, 2013
8489404 Method for detecting audio signal transient and time-scale modification based on same Jul. 16, 2013
8489403 Apparatuses, methods and systems for sparse sinusoidal audio processing and transmission Jul. 16, 2013
8489395 Method and apparatus for generating lattice vector quantizer codebook Jul. 16, 2013
8489391 Scalable hybrid auto coder for transient detection in advanced audio coding with spectral band replication Jul. 16, 2013
8488819 Method and apparatus for processing a media signal Jul. 16, 2013
8484038 Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation Jul. 9, 2013
8484037 Bandwidth extension apparatus for automatically adjusting the bandwidth of inputted signal and a method therefor Jul. 9, 2013
8484036 Systems, methods, and apparatus for wideband speech coding Jul. 9, 2013
8484035 Modification of voice waveforms to change social signaling Jul. 9, 2013
8484021 Apparatus for encoding/decoding multichannel signal and method thereof Jul. 9, 2013
8484019 Audio encoder and decoder Jul. 9, 2013
8473302 Parametric audio encoding and decoding apparatus and method thereof having selective phase encoding for birth sine wave Jun. 25, 2013
8473301 Method and apparatus for audio decoding Jun. 25, 2013
8473288 Quantizer, encoder, and the methods thereof Jun. 25, 2013
8473284 Apparatus and method of encoding/decoding voice for selecting quantization/dequantization using characteristics of synthesized voice Jun. 25, 2013
8468026 Audio decoding using variable-length codebook application ranges Jun. 18, 2013
8468025 Method and apparatus for processing signal Jun. 18, 2013
8468024 Generating a frame of audio data Jun. 18, 2013
8467442 Image searching device and method, program and program recording medium Jun. 18, 2013

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