Color television apparatus with picture-in-picture processing an

Details Color television apparatus with picture-in-picture processing an Color television apparatus with picture-in-picture processing an

1990-04-30

1992-04-21

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 36, H04N 974, H04N 964

Patent

active

051073412

ABSTRACT:
A color television receiver includes a picture-in-picture processor and a variable filtering circuit for imparting a "slope type" filtering characteristic to the chrominance component of displayed signals when the main picture being displayed is from a tuner video source and for imparting a "hay-stack" type filtering characteristic to the chrominance component when the main picture picture being displayed is from an auxiliary video source thereby providing an effective reduction in the visibility of chrominance signal sideband amplitude errors when displaying picture-in-picture images from different types of sources.

REFERENCES:
patent: 4384306 (1983-05-01), Liu
patent: 4573075 (1986-02-01), Bolger
patent: 4616252 (1986-10-01), Schiff
patent: 4717951 (1988-01-01), Fling
patent: 4855812 (1989-08-01), Rokuda et al.
patent: 4890162 (1989-12-01), McNeely et al.

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