Method and system for real time correction of an image

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C345S207000, C345S690000, C324S754120

Reexamination Certificate

active

07038186

ABSTRACT:
The present invention relates to a system and method for real time correction of light output and/or color of an image displayed on a display device. The system comprises:a display device (1) comprising an active display area (6) for displaying the image, an image forming device (2) and an electronic driving system (4) for driving the image forming device (2),an optical sensor unit (10) comprising an optical aperture (21) and a light sensor (22) having an optical axis, to make optical measurements on a light output from a representative part of the active display area (6) of the image forming device (2) and generating optical measurement signals (11) therefrom,a feedback system (12) receiving the optical measurement signals (11) and on the basis thereof controlling the electronic driving system (4).The optical aperture (21) of the optical sensor unit (10) has an acceptance angle such that at least 50%, alternatively 60%, alternatively 70%, alternatively 75% of the light received by the sensor (22) comes from light travelling within 15° of the optical axis of the light sensor (22).

REFERENCES:
patent: 5007731 (1991-04-01), Butefisch
patent: 5406213 (1995-04-01), Henley
patent: 5465052 (1995-11-01), Henley
patent: 5504438 (1996-04-01), Henley
patent: 5597223 (1997-01-01), Watanabe et al.
patent: 5783909 (1998-07-01), Hochstein
patent: 5850205 (1998-12-01), Blouin
patent: 6052166 (2000-04-01), Chikazawa
patent: 6081073 (2000-06-01), Salam
patent: 6147664 (2000-11-01), Hansen
patent: 6670603 (2003-12-01), Shimada et al.
patent: 6950098 (2005-09-01), Brabander et al.
patent: 2001/0008395 (2001-07-01), Yamamoto et al.
patent: 2002/0018249 (2002-02-01), Yamakawa et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and system for real time correction of an image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for real time correction of an image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for real time correction of an image will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3642128

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.