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:
Apr. 02, 2002
Filed:
Mar. 24, 2000
Robert D. Morrison, Star, ID (US);
Hewlett-Packard Co., Palo Alto, CA (US);
Abstract
A system is provided for enabling a pulse width modulator to render video data for a laser at a frequency independent of the operating frequency of the pulse width modulator. The system includes phase measuring circuitry, edge output determining circuitry, edge location circuitry, and a summer. The phase measuring circuitry is operative to detect a phase offset on a scan line for a laser. The edge output determining circuitry is operative to determine which system clock cycle to output an edge on the system clock to act as if it were on a video clock. The edge location circuitry is operative to locate placement of an edge for a given pixel. The summer communicates with the phase measuring circuitry, the edge output determining circuitry, and the edge location circuitry. The summer is operative to combine values from the phase measuring circuitry, the edge output determining circuitry, and the edge location circuitry to generate a desired video signal. A method is also provided.