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:
Oct. 18, 2011
Filed:
Jul. 26, 2005
Shiro Sakiyama, Kyoto, JP;
Yusuke Tokunaga, Osaka, JP;
Shiro Dosho, Osaka, JP;
Toru Iwata, Osaka, JP;
Takashi Hirata, Osaka, JP;
Shiro Sakiyama, Kyoto, JP;
Yusuke Tokunaga, Osaka, JP;
Shiro Dosho, Osaka, JP;
Toru Iwata, Osaka, JP;
Takashi Hirata, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The charge pump circuit includes: a first switch for controlling either one of push operation and pull operation based on a first control signal; a current mirror circuit composed of a transistor different in attribute from the first switch; and a second switch composed of a transistor same in characteristic as a transistor constituting the first switch, for controlling input of a current into the current mirror circuit based on a second control. The other operation, the push operation or the pull operation, is performed with a current output from the current mirror circuit.