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:
May. 13, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Robert J Martin, Orlando, FL (US);
Kirk Reiff, Titusville, FL (US);
Mark West, Oviedo, FL (US);
Gregory L Milne, Casselberry, FL (US);
Kevin Brown, Orlando, FL (US);
Assignee:
Martin Marietta Corporation, Bethesda, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; G01J / ;
U.S. Cl.
CPC ...
2503384 ; 25037001 ; 250340 ; 257 21 ; 257 23 ;
Abstract
Apparatus for and method of increasing the effective integration time, and, hence, reducing the noise bandwidth of a photodetector. The current output of the photodetector is converted to a voltage signal in a low pass filter. The low pass filter is preferably implemented as a switched capacitor filter.