Apparatus and Method for Encoding and Decoding Signal
First Claim
1. A decoding method, comprising:
- extracting a plurality of encoded signals from an input bitstream;
determining which of a plurality of decoding methods is to be used to decode each of the encoded signals;
decoding the encoded signals using the determined decoding methods; and
synthesizing the decoded signals.
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Abstract
Encoding and decoding apparatuses and encoding and decoding methods are provided. The decoding method includes extracting a plurality of encoded signals from an input bitstream, determining which of a plurality of decoding methods is to be used to decode each of the encoded signals, decoding the encoded signals using the determined decoding methods, and synthesizing the decoded signals. Accordingly, it is possible to encode signals having different characteristics at an optimum bitrate by classifying the signals into one or more classes according to the characteristics of the signals and encoding each of the signals using an encoding unit that can best serve the class where a corresponding signal belongs. In addition, it is possible to efficiently encode various signals including audio and speech signals.
68 Citations
20 Claims
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1. A decoding method, comprising:
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extracting a plurality of encoded signals from an input bitstream; determining which of a plurality of decoding methods is to be used to decode each of the encoded signals; decoding the encoded signals using the determined decoding methods; and synthesizing the decoded signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 20)
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9. A decoding apparatus, comprising:
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a bit unpacking module which extracts a plurality of encoded signals from an input bitstream; a decoder determination module which determines which of a plurality of decoding units is to be used to decode each of the encoded signals; a decoding module which comprises the decoding units and decodes each of the encoded signals using the determined decoding units; and a synthesization module which synthesizes the decoded signals. - View Dependent Claims (10, 11, 12)
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13. An encoding method, comprising:
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dividing an input signal into a plurality of divided signals; determining which of a plurality of encoding methods is to be used to encode each of the divided signals based on characteristics of each of the divided signals; encoding the divided signals using the encoding methods; and generating a bitstream using the encoded divided signals. - View Dependent Claims (14, 15, 16, 17)
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18. An encoding apparatus, comprising:
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a signal division module which divides an input signal into a plurality of divided signals; an encoder determination module which determines which of a plurality of encoding units is to be used to encode each of the divided signals an encoding module which comprises the encoding units and encodes the divided signals using the determined encoding units; and a bit packing module which generates a bitstream using the encoded divided signals. - View Dependent Claims (19)
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Specification