Line number having circuit for a sampled interlaced television s

Details Line number having circuit for a sampled interlaced television s Line number having circuit for a sampled interlaced television s

1987-10-02

1988-08-23

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358132, 358180, H04N 502

Patent

active

047664940

ABSTRACT:
In a line number halving circuit for a sampled interlaced television signal in one field the signal samples of a line (0, 4, 8) cancelled during halving are placed between the signal samples of an underlying or overlying maintained line (2, 6, 10) while in the other field alternately a signal sample of the overlying line (1, 5, 9) and of the underlying cancelled line (5, 9, 13) is placed between the successive signal samples of a maintained line (3, 7, 11) in order to prevent position errors in a picture displayed with the television signal halved in line number.

REFERENCES:
patent: 4402012 (1983-08-01), Knight
patent: 4417276 (1983-11-01), Bennett et al.
patent: 4496974 (1985-01-01), Heitmann
patent: 4578314 (1986-07-01), Reimers

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