发明名称 CIRCUIT FOR FILTERING VIDEO DATA OF FREQUENCY RANGE
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a data filtering circuit in which a method for filtering data of a conventional technique can be simply realized. <P>SOLUTION: The filtering circuit continuously performs the steps of correcting (ZWE) discrete transformation (DCT2) and an odd transforming data for a set of original data (from X0 to X7) and reverse discrete transformation (IDCT2). This filtering circuit uses the fact that paths corresponding to even and odd transformed data are completely separated except the first processing stage (ST1) of the discrete transformation and the final stage (ST8) of the reverse discrete transformation. As a result, a first half of the data generated from the first stage can be connected to the final processing stage. Thus, the filtering circuit can be simply realized. The circuit can be inexpensively manufactured in a low power consumption. The filtering circuit is functioned in a different mode for optimum realizing. <P>COPYRIGHT: (C)2003,JPO</p>
申请公布号 JP2003230143(A) 申请公布日期 2003.08.15
申请号 JP20020279566 申请日期 2002.09.25
申请人 KONINKL PHILIPS ELECTRONICS NV 发明人 GOBERT JEAN
分类号 G06F17/14;H03M7/30;H04N1/41;H04N5/205;H04N7/24;H04N19/60;(IPC1-7):H04N7/30 主分类号 G06F17/14
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