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 8232847 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 31, 2012

Filed:

Jan. 18, 2010
Applicant:

Isao Niwa, Kyoto, JP;

Inventor:

Isao Niwa, Kyoto, JP;

Assignee:

Rohm Co., Ltd., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

An oscillation circuit includes a piezoelectric oscillator, a resistive element, and an exciting circuit connected between an input node and an output node in parallel with one another, a first capacitor connected between the input node and a ground node, and a second capacitor connected between the output node and the ground node. The exciting circuit includes a NAND circuit and first and second inverters that are cascade-connected. Oscillation of the piezoelectric oscillator is started when an enable signal input to the NAND circuit is switched to an H level.


Find Patent Forward Citations

Niwa, Isao. (2012). Oscillation circuit (U.S. Patent No. 8232847). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8232847

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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