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:
Jun. 17, 2008
Filed:
May. 19, 2006
Takatoshi Yasui, Osaka, JP;
Takatoshi Yasui, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An input/output circuit device includes a first transistor which is formed at a substrate, a first gate of which receives an input signal, one of a first source and drain of which is connected to a first power supply terminal, and the other of the first source and drain of which is connected to an internal node; and a second transistor which is formed at the substrate, a second gate of which is connected to a second power supply terminal, one of a second source and drain of which is connected to an input/output node, and the other of the second source and drain of which is connected to the internal node. The substrate of the second transistor has an electrically floating potential.