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. 02, 2014

Filed:

Dec. 27, 2012
Applicant:

Asahi Kasei Microdevices Corporation, Tokyo, JP;

Inventors:

Junya Nakanishi, Tokyo, JP;

Yutaka Nakanishi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01); G11C 27/02 (2006.01); H03M 1/08 (2006.01); H03M 1/12 (2006.01); H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
G11C 27/024 (2013.01); H03M 1/12 (2013.01); G11C 27/02 (2013.01); H03M 1/0827 (2013.01); H03M 1/66 (2013.01);
Abstract

A sampling circuit includes a continuous section which is a circuit for transmitting a continuous signal; a digital section for transmitting a signal which is sampled and quantized; and a sampling and holding section for transmitting a signal which is sampled but not quantized between the continuous section and the digital section. The sampling and holding section includes capacitors for accumulating charge generated by an input signal and plural switches for accumulating the charge in the capacitors. The plural switches receive plural clock signals having different operation timings and perform an ON/OFF operation in response to the supplied clock signals.


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