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. 17, 2012
Filed:
Jun. 03, 2008
Masayuki Kusuda, Akashi, JP;
Masayuki Kusuda, Akashi, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
To provide an image pickup device and an image pickup apparatus which are equipped with a linear-log sensor which can cancel variations between pixels in an inflection point caused by variations in a threshold of the transistors constituting a logarithmic conversion circuit while using a circuit constitution similar to a pixel circuit of an image pickup device having only an ordinary linear characteristic. When the photoelectric charge accumulated in a photoelectric conversion element is removed, a charge removing transistor is controlled such that the potential of the channel of the charge removing transistor is set to be higher than the minimum potential of the photoelectric conversion element.