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:
Jul. 07, 1992
Filed:
Feb. 11, 1991
Applicant:
Inventor:
Michael L Reisch, Carlisle, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H04N / ;
U.S. Cl.
CPC ...
3461 / ; 358298 ;
Abstract
Apparatus for effecting center pulse width modulation of electronic printer lighter emitting elements is disclosed. The most significaant bit of the energization pulse for the printer light emitting elements is centered and each succeeding less significant bit is divided in half so as to form a mirror image on each side of the centered most significant bit.