Television – Monitoring – testing – or measuring
Patent
1994-09-30
1996-10-01
Metjahic, Safet
Television
Monitoring, testing, or measuring
348184, 348182, 345904, H04N 1702
Patent
active
055614590
ABSTRACT:
A method and system for formatting characteristic CRT information into a standardized format to provide a dynamic CRT characteristic profile to enhance presently used methods of recalibrating CRTs is disclosed. Present CRT parameters are measured and combined with previously acquired calibration parameters in order to create updated characteristic information for the profile. The characteristic information includes the CRT color gamut, the white and black point of the CRT and the gamma of the CRT. In addition, ambient lighting conditions may be included in the profile. This characteristic information is stored in a CRT characterization profile in a standardized format. The profile is updated whenever the CRT is recalibrated or whenever the operating conditions of the CRT are changed. Further, the profile may be employed to recalibrate a destination CRT based on a source CRT's profile.
REFERENCES:
patent: 4742387 (1988-05-01), Oshima
patent: 4962418 (1990-10-01), Kamaga
patent: 4985853 (1991-01-01), Taylor et al.
patent: 5371537 (1994-12-01), Bohan et al.
patent: 5400086 (1995-03-01), Sano et al.
Devine Jesse M.
Morgan Andrew B.
Stokes Michael
Apple Computer Inc.
Metjahic Safet
West Nina N.
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