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Kudryashov
Boris Kudryashov, St. Petersburg RU
| Patent application number | Description | Published |
|---|---|---|
| 20100014679 | Multi-channel encoding and decoding method and apparatus - Provided are a multi-channel encoding and decoding method and apparatus capable of encoding and decoding residual signal by removing redundant information between a plurality of channels without a downmixed signal. In the method and apparatus, a reference signal which is to be used for encoding from a plurality of channel signals, the phase differences between the respective channel signals and the reference signal, gains which are the ratios of the amplitudes of the respective channel signals to the amplitude of the reference signal, and residual signals which correspond to differences between predicted signals and the actual channel signals, are encoded or decoded. The predicted signals are obtained by applying the phase differences and gains to the reference signal. | 01-21-2010 |
| 20100079312 | APPARATUS AND METHOD OF LOSSLESS CODING AND DECODING - An apparatus and a method of lossless coding and decoding are provided. The apparatus to perform lossless coding may selectively perform an arithmetic coding scheme or a Huffman coding scheme with respect to a symbol. The apparatus to perform lossless coding may generate a bitstream including a first coding bit, generated according to the Huffman coding scheme. Such bitstream may include a reserved bit for the arithmetic coding scheme. | 04-01-2010 |
Boris Kudryashov, Valadivostok RU
| Patent application number | Description | Published |
|---|---|---|
| 20090073008 | SCALABLE ENCODING AND/OR DECODING METHOD AND APPARATUS - A method and apparatus to scalably encode or decode an audio signal or a video signal. A signal distribution is considered after binarization is performed based on a tree structure. Thus, a decoding end can minimize generation of quantization errors and restore an original signal. In addition, only frequency components perceptually important in terms of human hearing are set to an upper layer and encoded without decreasing a bandwidth which is restored from an upper layer. Therefore, sound quality can be increased by decreasing quantization noise while maintaining a relatively large frequency bandwidth, and the degradation of a compression performance is prevented. | 03-19-2009 |
Boris Kudryashov, Vladivostok RU
| Patent application number | Description | Published |
|---|---|---|
| 20080253576 | METHOD AND APPARATUS FOR ENCODING AND DECODING STEREO SIGNAL AND MULTI-CHANNEL SIGNAL - Provided are a method and apparatus for encoding and decoding a stereo signal or a multi-channel signal. According to the method and apparatus, a stereo signal or a multi-channel signal can be encoded and/or decoded by generating parameters based on a mono signal. | 10-16-2008 |