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. 25, 2003
Filed:
Sep. 07, 2001
Applicant:
Inventors:
Pierre D. Deschamps, Coteau-du-Lac, CA;
Claude J. Trottier, Laval, CA;
Assignee:
PerkinElmer Canada, Inc., Vaudreuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 4/014 ;
U.S. Cl.
CPC ...
H01J 4/014 ;
Abstract
A large current watchdog circuit for a photodetector, the circuit including a current sensing device responsive to current flowing through the photodetector and a variable impedance transistor responsive to the current sensing device and the photodetector which increases in resistance in response to current flowing though the photodetector to protect the photodetector and any front end sensing electronics from high current levels.
Quick Actions:
Deschamps, Pierre. (2003). Large current watchdog circuit for a photodetector (U.S. Patent No. 6525305). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6525305
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile