Title:
TV GAMMA CORRECTING CIRCUIT
Document Type and Number:
Japanese Patent JPS5483310
Kind Code:
A
Abstract:
A television gamma correction circuit in which a gamma corrector supplies an output signal having a minimum gamma equal to two, from which, relative to a linear input signal which is limited via a signal limiter circuit to the peak-white value, a correction signal is derived, with positive values only intended for increasing the gamma of the output signal of the gamma corrector. In this way scene details produced when the peak-white value is exceeded are prevented from being displayed with a lower picture brightness than associated with the peak-white value.
More Like This:
Inventors:
HENDORITSUKU BUROMU
Application Number:
JP14500078A
Publication Date:
July 03, 1979
Filing Date:
November 25, 1978
Export Citation:
Assignee:
PHILIPS NV
International Classes:
H04N5/202; (IPC1-7): H04N5/20