DISPLAY PROCESSING CIRCUIT

申请公布号：JP2002340937(A)

申请号：JP20010142631

申请日期：2001.05.14

申请公布日期：2002.11.27

申请人：

NEC CORP;NIPPON HOSO KYOKAI <NHK>

发明人：WATANABE SHINJI;IKEDA TETSUOMI;SHIBUYA KAZUHIKO;OKABE SATOSHI

分类号：G01R13/20;H04J11/00;(IPC1-7):G01R13/20

主分类号：G01R13/20

摘要：PROBLEM TO BE SOLVED: To provide a circuit for observing an OFDM type modulating wave in a normal constellation displaying circuit with a low operating frequency. SOLUTION: The display processing circuit, which is connected to an oscilloscope that displays the OFDM type signal to be used, the data signal of each carrier which is output by the sampling block of an FFT postpones a time to the integer time of a sampling clock and selects the data signal of each displaying carrier so that a deviation does not generate in a frequency area. Thereby a data signal can be displayed in the oscilloscope having a narrow frequency characteristic and the signal deterioration for all signals can be displayed.

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