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:
Dec. 06, 2011
Filed:
Nov. 02, 2010
Seiji Yamahira, Kyoto, JP;
Seiji Yamahira, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a booster circuit which is operated with a two-phase clock and in which a plurality of (M≧4) lines of boosting cells constitute a unit, a boosting cell in the K-th line (1≦K≦M) is controlled, depending on the voltage of the input terminal of a boosting cell in the KA-th line (KA=(K−1) when (K−1)>0, and KA=M when (K−1)=0). As a result, a charge transfer transistor can transition from the conductive state to the non-conductive state before a clock input to the boosting cell in the K-th line transitions from low to high and then boosting operation is performed. As a result, the backflow of charge via the charge transfer transistor can be reduced or prevented.