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:
Jan. 30, 1996
Filed:
Sep. 06, 1994
Satoru Mizuta, Kasugai, JP;
Katsuya Shimizu, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Fujitsu VLSI Limited, Kasugai, JP;
Abstract
In a detection circuit, a voltage-conversion circuit is supplied with a first voltage signal indicative of the state of an object circuit and produces an output current in response thereto, a detection circuit is supplied with a second voltage signal and detects the state of the object circuit in response thereto, and a clamping circuit, having an input terminal, is supplied at the input terminal thereof with the output current of the voltage-current conversion circuit and clamps the voltage at the input terminal thereof, and thus the output voltage of the voltage-current conversion circuit, at a predetermined level. The clamping circuit further produces the second voltage signal, which is supplied to the detection circuit, in response to the output current of the voltage-current conversion circuit and such that the second voltage signal has a magnitude proportional to the first voltage signal.