YC separation and still picture reproducing circuit

Details YC separation and still picture reproducing circuit YC separation and still picture reproducing circuit

1995-07-20

1996-12-31

Hsia, Sherrie

Television

Image signal processing circuitry specific to television

Chrominance-luminance signal separation

348604, 348670, H04N 978

Patent

active

055898882

ABSTRACT:
Two field memories for supplying a composite video signal of a previous frame to a motion detector are provided in performing a three dimensional Y/C separation. An output of the field memory connected to an input terminal is connected to a two dimensional Y/C separator by a switching circuit when there is a request for a function employing a field memory. When there is no such request, the input terminal is connected to the two dimensional Y/C separator. When there is a request for a still reproducing function employing a field memory, the function is realized by using the field memory employed in a three dimensional Y/C separation.

REFERENCES:
patent: 5155582 (1992-10-01), Tokoi
patent: 5339113 (1994-08-01), Iwasaki

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