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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.:

US 9488521 B1

PDFFull Text
Expired
Date of Patent:
Nov. 08, 2016

Filed:

Dec. 05, 2012

Method for operating optical sensor circuit, and method for operating display apparatus provided with optical sensor circuit

Applicant:

Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;

Inventors:

Kazuhiro Maeda, Osaka, JP;

Hiroaki Sugiyama, Osaka, JP;

Yousuke Nakagawa, Osaka, JP;

Yasuhiro Sugita, Osaka, JP;

Assignee:

Sharp Kabushiki Kaisha, Osaka, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

John Lee

Int. Cl.
CPC ...
G01J 1/44 (2006.01); G06F 3/041 (2006.01); G06F 3/042 (2006.01); G09G 3/34 (2006.01); H01L 31/105 (2006.01); G02F 1/133 (2006.01);
U.S. Cl.
CPC ...
G01J 1/44 (2013.01); G06F 3/042 (2013.01); G06F 3/0412 (2013.01); G06F 3/0418 (2013.01); G01J 2001/444 (2013.01); G01J 2001/446 (2013.01); G02F 2001/13312 (2013.01); G09G 3/3406 (2013.01); G09G 2310/0237 (2013.01); G09G 2360/145 (2013.01); H01L 31/105 (2013.01);
Abstract

In a method of operating an optical sensor circuit () in accordance with one embodiment of the present invention, main reset is performed prior to sensing of incident light with use of a PIN diode () and, between the main reset and next main reset, auxiliary reset is performed so that a potential of a cathode terminal of the PIN diode () is reduced within a predetermined range within which storage of carriers is not induced in an intrinsic region of the PIN diode ().

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Maeda, Kazuhiro. (2016). Method for operating optical sensor circuit, and method for operating display apparatus provided with optical sensor circuit (U.S. Patent No. 9488521). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9488521

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