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公开(公告)号：JPH04211579A
公开(公告)日：1992-08-03
申请号：JP41301990
申请日：1990-12-25
Applicant: SGS THOMSON MICROELECTRONICS
IPC: H04N5/213
Abstract: PURPOSE: To reduce a pulse-type noise of a digital video receiver set by picking up a sample affected by the pulse-type noise and substituting this sample with a load average of samples in the band. CONSTITUTION: A noise reducer 6 is provided above a separator 4, and a demodulator 7 which takes a video signal 10 from an antenna 8 as the input and demodulates it is provided below the separator 4. The noise reducer 6 includes a digital decoder 9 so as to execute sampling of a video signal from the demodulator 7. A decoded signal 13 is sampled in this base band, and a load average is calculated based on the outline value. The sample value affected by a pulse-type noise is substituted with this load average.
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