Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2011-03-01
2011-03-01
Nguyen, Kevin M (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S204000, C348S379000, C348S602000
Reexamination Certificate
active
07898557
ABSTRACT:
A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense.
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Japanese Patent Office; Notification of Reasons for Refusal, drafted Oct. 18, 2007 for Japanese application No. 2005-369019.
Aoki Hiroshi
Hasegawa Ryo
Hitachi , Ltd.
Kilpatrick Townsend & Stockton LLP
Nguyen Kevin M
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