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:
Dec. 04, 2001
Filed:
Sep. 04, 1998
Applicant:
Inventors:
David Hoffman, Houston, TX (US);
Bruce Beakley, Houston, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/48 ;
U.S. Cl.
CPC ...
H03M 1/48 ;
Abstract
Methods and apparatus are presented for precise measurement of mechanical position comprising combination of a plurality of coarse position signals to obtain substantial cancellation of spatial harmonics, generating a digital course position from a resolver system responsive to non-time harmonic signals, and providing precise incremental position signals from memory locations addressed by digital coarse position words.