Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2005-09-23
2010-02-16
Chan, Jason (Department: 2622)
Television
Camera, system and detail
Combined image signal generator and general image signal...
Reexamination Certificate
active
07663678
ABSTRACT:
A gamma correction method including an inverse gamma correction process for inputting a value of a tone input signal Tin of X bits having non-linear tone-luminance characteristic and for outputting a tone signal Tout of Y bits (X<Y) having the tone-luminance characteristic converted to the linear characteristic, and a format conversion process for inputting the Tout and for outputting the tone output signal of (N+M) bits formed of a set of Tn and Tm which is nearest to the Tout when the Tout is expressed as A^Tn×Tm with a constant A, an index number indicated by the signal Tn of N bits and a mantissa indicated by the signal Tm of M bits.
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Refer to p. 3 of Specification.
Chan Jason
Giles Nicholas G
NEC Corporation
Young & Thompson
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