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:
Feb. 27, 2007
Filed:
Nov. 30, 2004
Applicant:
Shinji Saito, Akiruno, JP;
Inventor:
Shinji Saito, Akiruno, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A diode detecting circuit which cancels temperature dependence of a detecting diode so as to obtain highly sensitive detection. The diode detecting circuit has a first diode detecting unit in which a first diode detects an input signal biased by a bias voltage, a second diode detecting unit in which a second diode receives the bias voltage, and an output unit which compares an output from the first diode detecting unit with an output from the second diode detecting unit.