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. 23, 2002
Filed:
Jun. 21, 2001
Hiroyuki Takahashi, Tokyo, JP;
Yuuji Matsui, Tokyo, JP;
NEC Corporation, , JP;
Abstract
The output circuit of the present invention which produces an external signal at a first voltage from an internal signal at a reduced second voltage and which outputs the external signal from an output terminal, comprises: first and second MOS transistors having drains connected to the output terminal, and having gates connected to a control signal line; a third MOS transistor having a source connected to a power source of the first voltage, and having a drain connected to a source of the first MOS transistor; a fourth MOS transistor having a source connected to a ground, having a drain connected to a source of the second MOS transistor, and having a gate connected to an internal signal line; a voltage changer, which changes the voltage of the internal signal, connected to the gate of the third MOS transistor; a first capacitor connected between a gate of the first MOS transistor and a gate of the third MOS transistor; and a second capacitor connected between a gate of the second MOS transistor and a gate of the fourth MOS transistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile