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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:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

Patent Number Title Of Patent Date Issued
7908147 Delay profiling in a communication system Mar. 15, 2011
7904301 Processing digital data Mar. 8, 2011
7904292 Scalable encoding device, scalable decoding device, and method thereof Mar. 8, 2011
7899677 Adapting masking thresholds for encoding a low frequency transient signal in audio data Mar. 1, 2011
7899676 Signal encoding device and signal encoding method, signal decoding device and signal decoding method, program, and recording medium Mar. 1, 2011
7899191 Synthesizing a mono audio signal Mar. 1, 2011
7895046 Low bit rate codec Feb. 22, 2011
7895044 Beamforming codebook generation system and associated methods Feb. 22, 2011
7894854 Image/audio playback device of mobile communication terminal Feb. 22, 2011
7890335 Sharing wavelet domain components among encoded signals Feb. 15, 2011
7886303 Method for dynamically adjusting audio decoding process Feb. 8, 2011
7885819 Bitstream syntax for multi-process audio decoding Feb. 8, 2011
7885809 Quantization of speech and audio coding parameters using partial information on atypical subsequences Feb. 8, 2011
7881942 Signal compressing apparatus Feb. 1, 2011
7877263 Signal processing Jan. 25, 2011
7876905 Multichannel spectral mapping audio apparatus and method Jan. 25, 2011
7873171 Multichannel spectral mapping audio apparatus and method Jan. 18, 2011
7873069 Methods and apparatus for controlling audio characteristics of networked voice communications devices Jan. 18, 2011
7865370 Content filtering for a digital audio signal Jan. 4, 2011
7865369 Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor Jan. 4, 2011
7864966 Multichannel spectral mapping audio apparatus and method Jan. 4, 2011
7864965 Multichannel spectral mapping audio apparatus and method Jan. 4, 2011
7864964 Multichannel spectral mapping audio apparatus and method Jan. 4, 2011
7860720 Multi-channel audio encoding and decoding with different window configurations Dec. 28, 2010
7860714 Detection system for segment including specific sound signal, method and program for the same Dec. 28, 2010
7860709 Audio encoding with different coding frame lengths Dec. 28, 2010
7860509 Methods and arrangements for adaptive thresholds in codec selection Dec. 28, 2010
7848933 Error monitoring of a Dolby Digital AC-3 bit stream Dec. 7, 2010
7848932 Stereo encoding apparatus, stereo decoding apparatus, and their methods Dec. 7, 2010
7848931 Audio encoder Dec. 7, 2010
7848930 Control mechanism for audio rate adjustment Dec. 7, 2010
7848929 Method and apparatus for packing and decoding audio and other data Dec. 7, 2010
7848925 Scalable encoding apparatus, scalable decoding apparatus, scalable encoding method, scalable decoding method, communication terminal apparatus, and base station apparatus Dec. 7, 2010
7840412 Audio coding Nov. 23, 2010
7840411 Audio encoding and decoding Nov. 23, 2010
7840410 Audio coding based on block grouping Nov. 23, 2010
7840403 Entropy coding using escape codes to switch between plural code tables Nov. 23, 2010
7835917 Apparatus and method of processing an audio signal Nov. 16, 2010
7835916 Channel signal concealment in multi-channel audio systems Nov. 16, 2010
7835915 Scalable stereo audio coding/decoding method and apparatus Nov. 16, 2010
7835340 Method of supporting multiple codes in a wireless mobile communication system Nov. 16, 2010
7831436 Apparatus for decoding audio data with scalability and method thereof Nov. 9, 2010
7831435 Slot position coding of OTT syntax of spatial audio coding application Nov. 9, 2010
7831434 Complex-transform channel coding with extended-band frequency coding Nov. 9, 2010
7830921 Apparatus and method of encoding and decoding audio signal Nov. 9, 2010
7827036 Data processing system, data processing method, data processor, and data processing program Nov. 2, 2010
7826527 Method for video data stream integration and compensation Nov. 2, 2010
7826360 Adjusting transmission rates during packet expansion using in band signaling Nov. 2, 2010
7825834 Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream Nov. 2, 2010
7822617 Optimized fidelity and reduced signaling in multi-channel audio encoding Oct. 26, 2010

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