Television – Image signal processing circuitry specific to television – Special effects
Patent
1995-10-23
1997-11-18
Lee, Thomas D.
Television
Image signal processing circuitry specific to television
Special effects
348594, H04N 974
Patent
active
056893108
ABSTRACT:
A fader device for processing picture data supplied from outside, such as from a video tape recorder or a camera, with fade-in or fade-out processing with a desired color. For fade-in, a subtractor subtracts the color picture data supplied from a designated color picture data forming unit from picture data supplied from outside and transmits the resulting difference data to a multiplier, which then multiplies picture data from the subtractor with a gradually increasing coefficient supplied from the gain control unit and routes the result of multiplication to an adder. The adder adds picture data supplied from the multiplier to the color picture data supplied from the designated color picture data forming unit and routes the resulting addition signal to a monitor unit. For fade-out, the subtractor subtracts the color picture data supplied from the designated color picture data forming unit from data supplied from outside and routes the resulting difference signal to the multiplier. The multiplier multiplies picture data from the subtractor with a gradually decreasing coefficient supplied from the gain control unit and routes the result of multiplication to an adder. The adder adds picture data supplied from the multiplier to the color picture data supplied from the designated color picture data forming unit and routes the resulting addition signal to a monitor unit.
REFERENCES:
patent: 3911418 (1975-10-01), Takeda
patent: 4851912 (1989-07-01), Jackson et al.
patent: 4947240 (1990-08-01), Hausdorfer
patent: 5313566 (1994-05-01), Hedley et al.
patent: 5347622 (1994-09-01), Takemote
patent: 5382980 (1995-01-01), Gehrmann
patent: 5416529 (1995-05-01), Lake
Kajimoto Masato
Kikuchi Akihiro
Murase Hirofumi
Grant II Jerome
Lee Thomas D.
Maioli Jay H.
Sony Corporation
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