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.

Date of Patent:
Mar. 23, 2010

Filed:

Nov. 07, 2007
Applicants:

Shinji Kawashima, Shiga, JP;

Kazunori Doi, Shiga, JP;

Inventors:

Shinji Kawashima, Shiga, JP;

Kazunori Doi, Shiga, JP;

Assignee:

NEC Electronics Corporation, Kawasaki, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a hysteresis characteristic input circuit, first and second resistors are connected in parallel between a first power supply terminal and a connection point, and first and second MOS transistors are connected in parallel between the connection point and a second power supply terminal and are controlled by an input voltage. An inverter has an input connected to the connection point and an output adapted to generate an output voltage. A first switching element is connected in series to the second resistor, and a second switching element is connected in series to the second MOS transistor. The first and second switching elements are complementarily controlled by the output voltage.


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