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. 23, 2003
Filed:
Dec. 01, 1998
Hitoshi Nomura, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A solid-state imaging apparatus for motion detection detects motion based on differences between pixel frames to make external image comparison processing unnecessary and to reduce erroneous detection of motion. The solid-state imaging apparatus includes a plurality of photoreceptive units arranged in a matrix of rows and columns, a plurality of vertical read lines disposed on each column of the plurality of photoreceptive units, a vertical transfer circuit that sequentially selects a specified row of the plurality of photoreceptive units and successively outputs to a vertical read line a previous pixel output, saved from a previous exposure of incident light on the photoreceptors, and a current pixel output newly generated from exposure of incident light on the photoreceptors, a comparison circuit that compares the previous pixel output and the current pixel output transferred by time division via the vertical read lines, a horizontal transfer circuit which serially transfers the comparison circuit's signals, and a logical calculation circuit that performs a logical calculation on the comparison circuit's signals and reduces the isolated regions of logical change to provide an object motion signal.