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:
Mar. 15, 2016
Filed:
Jun. 10, 2013
Applicant:
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Inventors:
Hideki Sato, Osaka, JP;
Takahiro Inoue, Osaka, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/18 (2006.01); G01S 7/486 (2006.01); H03M 1/06 (2006.01); G01J 1/44 (2006.01); G01S 17/10 (2006.01); H03M 1/36 (2006.01); H03M 1/12 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4861 (2013.01); G01J 1/44 (2013.01); G01S 17/10 (2013.01); H03M 1/0607 (2013.01); H03M 1/181 (2013.01); H03M 1/368 (2013.01); H03M 1/12 (2013.01);
Abstract
An analog-digital conversion circuit (ADC) includes: a capacitor (C); a charge and discharge control section () that puts, into the capacitor (C), an electric charge corresponding to an input current of a first period and that causes an electric charge corresponding to an input current of a second period to be discharged from the capacitor (C); and a digital conversion section () that converts an amount of electric charge of the capacitor (C) into a digital signal.