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:
Aug. 23, 1994
Filed:
Jan. 29, 1993
Applicant:
Inventor:
Peter J Vogelgesang, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250205 ; 21912162 ;
Abstract
A method and an apparatus is provided for reducing the effects of laser noise and for improving modulation transfer function in scanning a surface of a photoconductive plate with a spot of light through use of a time-light intensity integration method. The method comprises pulse synchronization or infrared synchronization to control activation and deactivation of signal detection laser light beams.