Patent application number | Description | Published |
20080312912 | AUDIO SIGNAL ENCODING/DECODING METHOD AND APPARATUS - Provided is an audio signal encoding method including transforming an input signal from a time domain to a time/frequency domain using a first transformation method, extracting a stereo parameter from a signal of the time/frequency domain, encoding the stereo parameter, and down-mixing the signal of the time/frequency domain, transforming each of sub-bands of the down-mixed signal to a frequency domain by using a second transformation method, and encoding the signal of the frequency domain in the frequency domain. | 12-18-2008 |
20110320196 | METHOD FOR ENCODING AND DECODING AN AUDIO SIGNAL AND APPARATUS FOR SAME - A method for coding and decoding an audio signal or speech signal and an apparatus adopting the method are provided. | 12-29-2011 |
20120010891 | APPARATUS AND METHOD FOR ENCODING/DECODING MULTICHANNEL SIGNAL - An apparatus and method for encoding/decoding a multi-channel signal may be provided. The apparatus of encoding a multi-channel signal may insert information about whether to encode a phase parameter indicating phase information of a plurality of channels, included in the multi-channel signal, in a bitstream of the multi-channel signal. The apparatus of decoding a multi-channel signal may determine whether to up-mix a mono signal using the phase parameter based on the information about whether to encode. | 01-12-2012 |
20120065753 | AUDIO SIGNAL ENCODING AND DECODING METHOD, AND APPARATUS FOR SAME - A method for performing coding and decoding with respect to an audio signal or a speech signal, and an apparatus applying the method are provided. | 03-15-2012 |
20120069921 | APPARATUS AND METHOD FOR ENCODING/DECODING A MULTICHANNEL SIGNAL - An apparatus for encoding/decoding a multichannel signal. The apparatus for encoding/decoding a multichannel signal processes phase parameters for phase information among a plurality of channels constituting the multichannel signal in consideration of the characteristics of the multichannel signal. The apparatus generates an encoded bit stream for the multichannel signal using the processed phase parameters and the mono signal extracted from the multichannel signal. | 03-22-2012 |
20120173247 | APPARATUS FOR ENCODING AND DECODING AN AUDIO SIGNAL USING A WEIGHTED LINEAR PREDICTIVE TRANSFORM, AND A METHOD FOR SAME - Disclosed is an apparatus for encoding and/or decoding an audio signal having a variable bit rate (VBR). A target bit rate is determined in accordance with characteristics of an audio signal, and a weighted linear predictive transform coding is performed in accordance with the determined target bit rate. | 07-05-2012 |
20120221343 | APPARATUS AND METHOD FOR ENCODING/DECODING A MULTICHANNEL SIGNAL - An apparatus for encoding/decoding a multichannel signal. The apparatus for encoding/decoding a multichannel signal processes phase parameters for phase information among a plurality of channels constituting the multichannel signal in consideration of the characteristics of the multichannel signal. The apparatus generates an encoded bit stream for the multichannel signal using the processed phase parameters and the mono signal extracted from the multichannel signal. | 08-30-2012 |
20120294447 | APPARATUS AND METHOD FOR ENCODING/DECODING MULTICHANNEL SIGNAL - An apparatus and method for encoding/decoding a multi-channel signal may be provided. The apparatus of encoding a multi-channel signal may insert information about whether to encode a phase parameter indicating phase information of a plurality of channels, included in the multi-channel signal, in a bitstream of the multi-channel signal. The apparatus of decoding a multi-channel signal may determine whether to up-mix a mono signal using the phase parameter based on the information about whether to encode. | 11-22-2012 |
20130297322 | ERROR CONCEALMENT METHOD AND APPARATUS FOR AUDIO SIGNAL AND DECODING METHOD AND APPARATUS FOR AUDIO SIGNAL USING THE SAME - An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme. | 11-07-2013 |
20140245091 | FRAME ERROR CONCEALMENT METHOD AND APPARATUS AND DECODING METHOD AND APPARATUS USING THE SAME - A frame error concealment method and apparatus and a decoding method and apparatus using the same. The frame error concealment method includes setting a concealment method to conceal an error based on one or more signal characteristics of an error frame having the error and concealing the error using the set concealment method. | 08-28-2014 |