Luminance signal forming circuit for color tv camera which combi

Details Luminance signal forming circuit for color tv camera which combi Luminance signal forming circuit for color tv camera which combi

1987-09-23

1989-02-14

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 29, 358 39, H04N 9077, H04N 964, H04N 973

Patent

active

048050113

ABSTRACT:
A luminance signal is formed from a first luminance signal produced by mixing a plurality of complementary color signals obtained from a television camera having complementary color filters and from a second luminance signal produced by mixing at a predetermined ratio a plurality of primary color signals that are derived from the plurality of complementary color signals, the first and second luminance signals are then mixed so that the composite output signal forms the desired luminance signal. The first luminance signal is level adjusted based upon the color temperature detection signal derived from a color temperature detector and a second luminance signal is balanced in level based upon this color temperature detection signal. The second luminance signal is derived by mixing the three primary color signals at a predetermined ratio. This ratio is variable and can be controlled in response to an automatic gain control signal derived from an automatic gain control circuit that receives the output of the television camera.

REFERENCES:
patent: 4205336 (1980-05-01), Nagumo
patent: 4390895 (1983-06-01), Sato et al.
patent: 4415923 (1983-11-01), Noda
patent: 4517588 (1985-05-01), Kuwayama et al.
patent: 4638352 (1987-01-01), Noda et al.
patent: 4688085 (1987-08-01), Imaide
patent: 4714955 (1987-12-01), Nishimura et al.
patent: 4725881 (1988-02-01), Buchwald

Affiliated with

Also associated with

Rating

Luminance signal forming circuit for color tv camera which combi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Luminance signal forming circuit for color tv camera which combi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Luminance signal forming circuit for color tv camera which combi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1369856