METHOD FOR DECODING DIGITAL DATA AND DATA MANAGING DEVICE
First Claim
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1. A method for decoding digital data capable of tracking data dissemination device, comprising:
- (a) receiving a digital data;
(b) decoding a correct codeword from the digital data and identifying at least two error positions of at least two error digits by a linear code decoding algorithm, wherein different error position denotes different sign data; and
(c) tracking at least two dissemination devices according to the at least two error positions.
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Abstract
A method for encoding or decoding digital data, a data dissemination device and a data managing device are provided. The method for encoding digital data includes the following steps. A digital data is received. A sign data is encoded into the digital data through a linear combination operation to obtain an encoded digital data, wherein the size of the digital data is not changed after the encoding process. The encoded digital data is disseminated.
19 Citations
6 Claims
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1. A method for decoding digital data capable of tracking data dissemination device, comprising:
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(a) receiving a digital data; (b) decoding a correct codeword from the digital data and identifying at least two error positions of at least two error digits by a linear code decoding algorithm, wherein different error position denotes different sign data; and (c) tracking at least two dissemination devices according to the at least two error positions. - View Dependent Claims (2, 3, 4)
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5. A data managing device, comprising:
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an input unit used for inputting a digital data; a decoding operation unit used for decoding a correct codeword from the digital data and for identifying at least two error positions of at least two error digits by a linear code decoding algorithm, wherein different error position denotes different sign data; and a tracking unit used for tracking at least two dissemination devices according to the at least two error positions. - View Dependent Claims (6)
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Specification