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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tadayoshi Nakayama0
Date of Patent
March 6, 2007
0Patent Application Number
103225980
Date Filed
December 19, 2002
0Patent Primary Examiner
Patent abstract
The present invention provides a method and apparatus that transforms input signals X0, X1, X2, X3 using a 4-point Hadamard transform matrix, and of the resulting transformation data, rounds up the LSB of the first transformed data and rounds down the LSB of the remaining odd-numbered data. When restoring the data to its original state the rounding is executed after a Hadamard inverse transformation is performed, thereby restoring the data to its original state X0, X1, X2, X3.
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