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. 16, 1991
Filed:
Sep. 26, 1988
Kyocera Corporation, Kyoto, JP;
Abstract
A control system for an image sensor that has an array of pixels and a fetching circuit. During a charge accumulation interval each pixel generates a corresponding instantaneous pixel signal cumulatively responsive to the light the pixel has received from an incident image. At the end of the accumulation interval, the fetching circuit composes an image signal from the values attained by the array's various instantaneous pixel signals. The control system has a drive control circuit and a contrast detector. The contrast detector is coupled to the array for deriving an instantaneous image contrast signal from the instantaneous pixel signals. The drive control circuit then uses the instantaneous image contrast signal for adjusting the array's accumulation interval so the image signal will have good contrast.