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:
Apr. 17, 2012
Filed:
Jun. 11, 2009
Applicant:
Kiyohito Hara, Osaka, JP;
Inventor:
Kiyohito Hara, Osaka, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a semiconductor device, low-level signals are output from a terminal voltage detecting circuit when the connection between an external terminal and a resistor is cut off, or when the connection between the resistor and a ground voltage is cut off, or when the external terminal short-circuits to the ground voltage. Accordingly, a PMOS transistor is turned on so that an oscillating circuit stops oscillating and outputs high-level signals from its output terminal.