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:
Nov. 15, 2011
Filed:
Jul. 28, 2006
Stuart A. Scofield, Battleground, WA (US);
Jeffrey G. Castleberry, Underwood, WA (US);
Steven H. Walker, Camas, WA (US);
Stuart A. Scofield, Battleground, WA (US);
Jeffrey G. Castleberry, Underwood, WA (US);
Steven H. Walker, Camas, WA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A system having a disc carrier determines a location of the disc carrier based upon first and second specular signals from an optical sensing element, the first specular signal occurring when the incident light is not received within the opening and impinges a first portion of the optical sensing element and the second specular signal occurring when the incident light is received within the opening and impinges a second portion of the optical sensing element.