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. 28, 2009
Filed:
Oct. 31, 2006
Su-hun Lim, Suwon-si, KR;
Su-hun Lim, Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
Provided are a CIS circuit that does not increase an initial voltage charge time allocated by a CDS even if a pixel size is reduced and a method of providing an initial charge to the CIS circuit. The CIS circuit may include an APS block, a current source block and a charge supply block. The APS block may output APS signals from APS output terminals in response to sensed image transfer signals, pixel select signals and pixel reset signals. The current source block may control currents flowing from the APS output terminals to a power supply in response to a bias voltage. The charge supply block may provide a quantity of charges to the APS output terminals in response to a representative reset signal and a pre-resent signal.