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.

Date of Patent:
Sep. 23, 2014

Filed:

Jun. 29, 2011
Applicant:

Hee Bum Lee, Icheon-si, KR;

Inventor:

Hee Bum Lee, Icheon-si, KR;

Assignee:

SK Hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01); H03M 1/12 (2006.01); H03K 4/06 (2006.01); G05F 1/00 (2006.01); H03M 1/58 (2006.01); H04N 5/378 (2011.01); H03K 4/08 (2006.01);
U.S. Cl.
CPC ...
H03K 4/08 (2013.01); H04N 5/378 (2013.01);
Abstract

Disclosed are a ramp signal generator and an image sensor. The ramp signal generator includes: a comparator comparing a first bias voltage input to a first input terminal and a second bias voltage input to a second input terminal and outputting a ramp signal from an output terminal; a ramp signal adjustment unit including a plurality of switched capacitors made up of switches and capacitors connected in series, and connected in parallel between a first input terminal of the comparator and an output terminal of the comparator; and a controller switching the switches of the plurality of switched capacitors to adjust the ramp signal output from the comparator such that the ramp signal becomes nonlinear over time.


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Lee, Hee. (2014). Ramp signal generator and image sensor (U.S. Patent No. 8841594). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8841594

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