Cyclic noise-reducing apparatus

Details Cyclic noise-reducing apparatus Cyclic noise-reducing apparatus

1991-02-11

1992-06-02

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 13, H04N 521

Patent

active

051191970

ABSTRACT:
In a cyclic noise-reducing apparatus a reset signal is produced for each field based on an input video signal to make a start in the sub-sampling operation from the initial state, and data at the same positions are sub-sampled respectively in odd and even fields under the sub-sampling operation. Accordingly, false data having different lines are prevented from being circulated even when data including data prior to 1 field are subjected to the interpolation, so that a satisfactory noise-reducing effect can be obtained.

REFERENCES:
patent: 4227204 (1980-10-01), Rossi
patent: 4286291 (1981-08-01), Taylor et al.
patent: 4725887 (1988-02-01), Field
patent: 4730217 (1988-03-01), Tonge et al.
patent: 4807034 (1989-02-01), Takeuchi et al.
patent: 4858026 (1989-08-01), Richards
patent: 4870482 (1989-09-01), Yasuki et al.
patent: 4897716 (1990-01-01), Drewery et al.
patent: 4953009 (1990-08-01), Yamada et al.
patent: 5003389 (1991-03-01), Isobe et al.
patent: 5018010 (1991-05-01), Masumoto

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