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. 18, 2012
Filed:
Sep. 04, 2008
Shigetoshi Sugawa, Sendai, JP;
Yasushi Kondo, Kyoto, JP;
Hideki Tominaga, Uji, JP;
Tohoku University, Sendai-shi, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A pixel output line () is independently provided for each of the pixels arranged in a two-dimensionally array within a pixel area so that pixel signals can be sequentially written in a plurality of memory sections () through the pixel output lines (). When a plurality of frames of pixel signals are held in the memory sections (), the pixel signals corresponding to two arbitrarily selected frames are read and respectively stored in sample-and-hold circuits (and), and their difference is obtained. Then, the difference signals corresponding to a predetermined range of the image are integrated, and the integrated value is compared with a threshold. If the integrated value exceeds the threshold, it is presumed that a change in an imaging object has occurred, and a pulse generation circuit () generates a trigger signal. By controlling the discontinuation and other imaging actions according to this trigger signal, it is possible to correctly take high-speed images of the situation before or after the occurrence of an objective phenomenon.