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:
Jul. 24, 2007
Filed:
Aug. 30, 2005
Applicants:
Munehiro Uratani, Yamatokoriyama, JP;
Yuji Kasai, Tsukuba, JP;
Tetsuya Higuchi, Tsukuba, JP;
Eiichi Takahashi, Tsukuba, JP;
Inventors:
Munehiro Uratani, Yamatokoriyama, JP;
Yuji Kasai, Tsukuba, JP;
Tetsuya Higuchi, Tsukuba, JP;
Eiichi Takahashi, Tsukuba, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bus driving device is provided with a driver circuit for driving a bus line thereof. The driver circuit includes an MOS transistor whose well is separated from other circuits. Further, the bus driving device is provided with a voltage control section for adjusting a well voltage, in accordance with a level of a signal in the bus line. With this bus driving device, a threshold voltage of the MOS transistor is set at a predetermined target value.