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:
Jul. 14, 2015
Filed:
Feb. 23, 2011
Applicants:
Takashi Suzuki, Hamamatsu, JP;
Mitsuhito Mase, Hamamatsu, JP;
Tomohiro Yamazaki, Hamamatsu, JP;
Inventors:
Assignee:
HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/46 (2006.01); G01S 7/486 (2006.01); H01L 27/146 (2006.01); G01S 17/89 (2006.01); H01J 1/46 (2006.01);
U.S. Cl.
CPC ...
G01S 17/89 (2013.01); G01J 1/46 (2013.01); G01S 7/4863 (2013.01); H01J 1/46 (2013.01);
Abstract
Since the accumulation regions fd, fdare connected only to a single capacitor C, a pixel can be decreased in size to improve spatial resolution. And, charges transferred into the accumulation regions fd, fdare temporarily accumulated, thereby improving a signal-noise ratio. The driving circuit DRV conducts dummy switching so that the number of switching of the first switch Φis equal to the number of switching of the second switch Φafter termination of the reset period within one cycle, thus making it possible to cancel offset and obtain a more accurate range image.