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Class Information
Number: 704/501
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Audio signal bandwidth compression or expansion > With content reduction encoding
Description: Subject matter combined with means to discard and replace redundant information by a code indicating what has been discarded.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617110 |
Lossless audio decoding/encoding method, medium, and apparatus |
Nov. 10, 2009 |
| 7613603 |
Audio coding device with fast algorithm for determining quantization step sizes based on psycho-acoustic model |
Nov. 3, 2009 |
| 7613609 |
Apparatus and method for encoding a multi-channel signal and a program pertaining thereto |
Nov. 3, 2009 |
| 7610205 |
High quality time-scaling and pitch-scaling of audio signals |
Oct. 27, 2009 |
| 7606705 |
Speech data receiver with detection of channel-coding rate |
Oct. 20, 2009 |
| 7606716 |
Systems and methods for multi-dialog surround audio |
Oct. 20, 2009 |
| 7602922 |
Multi-channel encoder |
Oct. 13, 2009 |
| 7599840 |
Selectively using multiple entropy models in adaptive coding and decoding |
Oct. 6, 2009 |
| 7596486 |
Encoding an audio signal using different audio coder modes |
Sep. 29, 2009 |
| 7587314 |
Single-codebook vector quantization for multiple-rate applications |
Sep. 8, 2009 |
| 7567897 |
Method for dynamic selection of optimized codec for streaming audio content |
Jul. 28, 2009 |
| 7555434 |
Audio decoding device, decoding method, and program |
Jun. 30, 2009 |
| 7539612 |
Coding and decoding scale factor information |
May. 26, 2009 |
| 7532728 |
Mechanism for using the allpass decomposition architecture for the cauer low pass filter used in a BTSC |
May. 12, 2009 |
| 7523039 |
Method for encoding digital audio using advanced psychoacoustic model and apparatus thereof |
Apr. 21, 2009 |
| 7519538 |
Audio signal encoding or decoding |
Apr. 14, 2009 |
| 7516064 |
Adaptive hybrid transform for signal analysis and synthesis |
Apr. 7, 2009 |
| 7512539 |
Method and device for processing time-discrete audio sampled values |
Mar. 31, 2009 |
| 7509254 |
Encoding device and decoding device |
Mar. 24, 2009 |
| 7509294 |
Synthesis subband filter for MPEG audio decoder and a decoding method thereof |
Mar. 24, 2009 |
| 7505900 |
Signal encoding apparatus, signal encoding method, and program |
Mar. 17, 2009 |
| 7496517 |
Method and device for generating a scalable data stream and method and device for decoding a scalable data stream with provision for a bit saving bank function |
Feb. 24, 2009 |
| 7490037 |
Method and apparatus for encoding signals |
Feb. 10, 2009 |
| 7490044 |
Audio signal processing |
Feb. 10, 2009 |
| 7469206 |
Methods for improving high frequency reconstruction |
Dec. 23, 2008 |
| 7460990 |
Efficient coding of digital media spectral data using wide-sense perceptual similarity |
Dec. 2, 2008 |
| 7457742 |
Variable rate audio encoder via scalable coding and enhancement layers and appertaining method |
Nov. 25, 2008 |
| 7457747 |
Noise detection for audio encoding by mean and variance energy ratio |
Nov. 25, 2008 |
| 7454327 |
Method and apparatus for introducing information into a data stream and method and apparatus for encoding an audio signal |
Nov. 18, 2008 |
| 7454353 |
Method and device for the generation of a scalable data stream and method and device for decoding a scalable data stream |
Nov. 18, 2008 |
| 7451092 |
Detection of signal modifications in audio streams with embedded code |
Nov. 11, 2008 |
| 7447317 |
Compatible multi-channel coding/decoding by weighting the downmix channel |
Nov. 4, 2008 |
| 7433824 |
Entropy coding by adapting coding between level and run-length/level modes |
Oct. 7, 2008 |
| 7424434 |
Unified lossy and lossless audio compression |
Sep. 9, 2008 |
| 7418396 |
Reduced memory implementation technique of filterbank and block switching for real-time audio applications |
Aug. 26, 2008 |
| 7409350 |
Audio processing method for generating audio stream |
Aug. 5, 2008 |
| 7394903 |
Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal |
Jul. 1, 2008 |
| 7395209 |
Fixed point audio decoding system and method |
Jul. 1, 2008 |
| 7395346 |
Information frame modifier |
Jul. 1, 2008 |
| 7391870 |
Apparatus and method for generating a multi-channel output signal |
Jun. 24, 2008 |
| 7382886 |
Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
Jun. 3, 2008 |
| 7379878 |
Information encoding apparatus and method, information decoding apparatus and method, recording medium utilizing spectral switching for embedding additional information in an audio signal |
May. 27, 2008 |
| 7363216 |
Method and system for parametric characterization of transient audio signals |
Apr. 22, 2008 |
| 7363231 |
Coding device, decoding device, and methods thereof |
Apr. 22, 2008 |
| 7356083 |
Data compression system and method |
Apr. 8, 2008 |
| 7346513 |
Audio signal saving operation controlling method, program thereof, record medium thereof, audio signal reproducing operation controlling method, program thereof, record medium thereof, audio s |
Mar. 18, 2008 |
| 7346517 |
Method of inserting additional data into a compressed signal |
Mar. 18, 2008 |
| 7343292 |
Audio encoder utilizing bandwidth-limiting processing based on code amount characteristics |
Mar. 11, 2008 |
| 7343286 |
Method and apparatus for digital signal processing |
Mar. 11, 2008 |
| 7330555 |
Coding device and method, and recording medium |
Feb. 12, 2008 |
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