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:
Apr. 25, 1995
Filed:
Mar. 30, 1993
Applicant:
Inventors:
Koichi Nakamura, Kanagawa, JP;
Takashi Asaida, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
348692 ; 348693 ; 348697 ; 348615 ; 348257 ; 348687 ; 348688 ;
Abstract
In an image pick up device, signal level of red, green and blue color signals is coarsely adjusted in a signal processing circuit, and then a black level of video signal is finely adjusted in a digital signal processing circuit, thereby being capable of easily adjusting the black level and improving the accuracy of black level adjustment.