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. 11, 2004
Filed:
May. 08, 2002
David S. Vejtasa, Mountain View, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A displacement measurement system and a sheet feed system incorporating the same are described. The displacement measurement system includes a support arm, a roller, and an optical encoder. The support arm has a first end and a second end and is configured to turn about a pivot axis on a pivot located closer to the first end than the second end so that displacement of the first end causes a greater corresponding displacement of the second end. The roller is mounted at the first end of the support arm and is configured to rotate about a roller axis substantially parallel to the pivot axis. The optical encoder has at least one component mounted at the second end of the support arm and is configured to generate signals responsive to movement of the second end of the support arm.