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. 24, 2005
Filed:
Sep. 24, 2003
Yoji Idei, Tokyo, JP;
Yusuke Shimizu, Tokyo, JP;
Yoji Idei, Tokyo, JP;
Yusuke Shimizu, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi ULSI Systems Co., Ltd., Tokyo, JP;
Abstract
The semiconductor device includes a first current mirror circuit combining analog power sources and digital power sources to receive small amplitude signals and constant-voltage input signals, a second current mirror circuit for receiving a signal output from the first current mirror circuit and for level-converting the signal from analog power source to digital power source, a first node provided in the first current mirror circuit, a second node provided in the second current mirror circuit, and an inverter circuit for receiving a signal output on the basis of the voltage levels of the first node and the second node and for outputting a CMOS level signal.