Horology: time measuring systems or devices – Cases – Adaptable
Patent
1996-01-03
1998-12-08
Chevalier, Robert
Horology: time measuring systems or devices
Cases
Adaptable
348687, H04N 557, H04N 558
Patent
active
058477730
ABSTRACT:
A projection television system includes an automatic contrast control section for controlling the amplitude of the luminance signal in response to the peak value of a luminance-representative image component signal in order to prevent white-spot blooming. Circuitry is provided for deactivating the automatic contrast control section when a user sets the contrast control level above a given threshold level, e.g., corresponding to the maximum contrast control level. As a result white-spot blooming is inhibited in order to ensure sharp images for a contrast control range below the given threshold level while allowing maximum white image components to be produced (at the expense of white spot blooming) when the contrast control level is set above the threshold level, depending on the preference of the user.
REFERENCES:
patent: 3804981 (1974-04-01), Avins
patent: 3983575 (1976-09-01), Nagai
patent: 4067517 (1978-01-01), Barnum
patent: 4167025 (1979-09-01), Willis
patent: 4355334 (1982-10-01), Fitzgibbon
patent: 4549217 (1985-10-01), Sendelweck
patent: 4549218 (1985-10-01), Norley et al.
patent: 4682231 (1987-07-01), Yamakawa
patent: 4730211 (1988-03-01), Hasegawa
patent: 4760450 (1988-07-01), Yagi
patent: 4947253 (1990-08-01), Neal
patent: 4980756 (1990-12-01), Lagoni
patent: 4982287 (1991-01-01), Lagoni
patent: 5003394 (1991-03-01), Lagoni
patent: 5040065 (1991-08-01), Vilard
patent: 5131381 (1992-07-01), Ams et al.
Lagoni William Adamson
O'Brien Robert Lawrence
Chevalier Robert
Emanuel Peter M.
Kiel Paul P.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
LandOfFree
Video system including apparatus for deactivating an automatic c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video system including apparatus for deactivating an automatic c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video system including apparatus for deactivating an automatic c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-183320