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. 26, 2005
Filed:
Sep. 10, 2002
Daniel J. Durocher, Leonard, MI (US);
Daniel J. Durocher, Leonard, MI (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
Apparatus () includes a first data ring () rotatable with a member () and includes bit indicators () for indicating an absolute angular position of the member. Sensors () read the bit indicators () of the first data ring () and provide a first signal indicative of the absolute angular position of the member (). A second data ring () is rotatable with the member () and includes bit indicators () for indicating incremental changes in the angular position of the member. Sensors () read the bit indicators () of the second data ring () and provide a second signal, having about twice the resolution of the first signal, indicative of incremental changes in angular position of the member (). A processor () receives the first and second signals and calculates an absolute angular position of the member () having a resolution equal to the second resolution.