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:
May. 27, 2014
Filed:
Mar. 07, 2013
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Ryo Fukuda, Kanagawa-ken, JP;
Masaru Koyanagi, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A constant current source circuit includes one end connected to a second node as sources of third and fourth transistors, and the other end connected to a second power supply node that supplies a second voltage different from a first voltage. The clamp circuit is configured to form a current path between the second node and the second power supply node. It adjusts the potential of the second node to a certain potential when a first external input signal is switched from a first state to a second state.