Television picture display device

Details Television picture display device Television picture display device

1987-05-27

1988-06-07

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 545

Patent

active

047500387

ABSTRACT:
In a television picture display device which can display a compressed (by 13) sub-picture of a second video signal source (29) in a main picture of a first video signal source (1), a correct mutual location of the picture information in the sub-picture with respect to the main picture is always obtained by means of a first (55) and a second (119) even-odd field identification circuit for the sub-picture and for the main picture, respectively, an interlacing circuit (71) and an interlacing-correction circuit (125), so that troublesome phenomena no longer occur in the sub-picture upon field transitions.

REFERENCES:
patent: 4636864 (1987-01-01), Annegarn
patent: 4707742 (1987-11-01), Field

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