The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1994
Filed:
Dec. 29, 1993
Seong-hoon Kim, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-Do, KR;
Abstract
A gamma correction circuit for single-plate type video camera having a correlation double sampling device and receiving the signal output from a complementary-filter-type charge coupled device (CCD) to thereby produce a color line sequence signal, includes a luminance signal detector for detecting the luminance signal frown the color line sequence signal; a first gamma-corrector for performing gamma-correction to the detected luminance signal from the luminance signal detector; a second gamma-corrector for gamma-correcting the color line sequence signal; a color difference signal detector for detecting the color difference signal from the color line sequence signal which is gamma-corrected by the second gamma-corrector; and a mixer for mixing the gamma-corrected luminance signal which is gamma-corrected by the first gamma-corrector with the gamma-corrected color difference signal which is detected by the color difference signal detector. Accordingly, the gamma-correction circuit performs gamma-correction to the color line sequence signal being output from the correlation double sampling device, so that the circuit can be simplified.