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:
Oct. 18, 2005
Filed:
Dec. 23, 2002
Craig P. Bush, Lexington, KY (US);
Roger S. Cannon, Lexington, KY (US);
Martin C. Klement, Lexington, KY (US);
E. Dawson Ward, Richmond, KY (US);
Craig P. Bush, Lexington, KY (US);
Roger S. Cannon, Lexington, KY (US);
Martin C. Klement, Lexington, KY (US);
E. Dawson Ward, Richmond, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A method and device for managing and controlling a scanning system that incorporates multiple oscillating scanners is provided by the present invention. In accordance with the preferred embodiment, a resonant frequency is determined for each of the scanners. A drive signal for driving the oscillating scanners is generated based upon the determined resonant frequencies. An amplitude adjustment circuit determines the difference between the drive signal frequency and the resonant frequency of each oscillating scanner and adjusts the amplitude of the drive signal provided to that particular oscillating scanner such that scan amplitude of each oscillating scanner is approximately equal. The offset from the resonant frequency is also used to calculate a phase adjustment for the drive signal to insure that the oscillating scanners are operating in tandem.