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. 06, 2008
Filed:
Nov. 06, 2006
Yajun LI, Oakdale, NY (US);
Paul Dvorkis, East Setauket, NY (US);
Dmitriy Yavid, Stony Brook, NY (US);
Frederick F. Wood, Medford, NY (US);
Miklos Stern, Woodmore, NY (US);
Edward Barkan, Miller Place, NY (US);
Narayan Nambudri, Kings Park, NY (US);
Yajun Li, Oakdale, NY (US);
Paul Dvorkis, East Setauket, NY (US);
Dmitriy Yavid, Stony Brook, NY (US);
Frederick F. Wood, Medford, NY (US);
Miklos Stern, Woodmore, NY (US);
Edward Barkan, Miller Place, NY (US);
Narayan Nambudri, Kings Park, NY (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.