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:
Mar. 03, 2009
Filed:
Sep. 18, 2006
Youichi Tobita, Tokyo, JP;
Hiroyuki Murai, Tokyo, JP;
Youichi Tobita, Tokyo, JP;
Hiroyuki Murai, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A shift register includes, in the output stage, a first transistor connected between an output terminal and a first clock terminal and a second transistor connected between the output terminal and a first power terminal. Third and fourth transistors constitute an inverter which inverses the level of the gate of the second transistor and outputs it to the gate of the first transistor. An isolation circuit formed by fifth and sixth transistors is provided between the gate of the first transistor and the gate of the fourth transistor. The fifth transistor is diode-connected. When the gate of the first transistor becomes higher than the gate of the fourth transistor, the first and fourth transistors are electrically isolated from each other.