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 8947286 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 03, 2015

Filed:

Nov. 04, 2013
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Yanfei Chen, Yokohama, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/38 (2006.01); H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
H03M 1/002 (2013.01);
Abstract

An analog/digital converter includes: a first analog/digital conversion unit that performs digital conversion on received first analog input voltage in a first time period; a second analog/digital conversion unit that performs digital conversion on received second analog input voltage in a second time period that is different from the first time period; and a first coupling capacitor that connects the first analog/digital conversion unit and the second analog/digital conversion unit, and wherein the second analog/digital conversion unit receives, through the first coupling capacitor, first residual voltage that is remaining voltage of the first analog input voltage on which digital conversion is performed in the first analog/digital conversion unit, as the second analog input voltage.


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