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:
Dec. 21, 1982
Filed:
Jan. 22, 1981
Applicant:
Inventor:
Kiyotake Nagai, Tokyo, JP;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358228 ;
Abstract
A television camera is provided with an automatic gain selecting unit which is responsive to the iris value of the lens attached to the camera. The automatic gain selecting unit includes a comparator for determining when the camera lens-iris operates within a medium 'window' range, a counter for counting upwardly or downwardly when the lens-iris operates outside of the window range, and a decoder for outputting a control signal to a gain selecting amplifier to adjust the gain thereof, in response to the operation of the counter.