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. 17, 2011
Filed:
Aug. 14, 2008
Ming-chih Weng, Los Angeles, CA (US);
Turguy Goker, Solana Beach, CA (US);
James Mark Decot, Fountain Valley, CA (US);
Minh VU, Midway City, CA (US);
John A. Hamming, San Clemente, CA (US);
Ming-chih Weng, Los Angeles, CA (US);
Turguy Goker, Solana Beach, CA (US);
James Mark Decot, Fountain Valley, CA (US);
Minh Vu, Midway City, CA (US);
John A. Hamming, San Clemente, CA (US);
Quantum Corporation, San Jose, CA (US);
Abstract
In a method of electronically measuring reel off-center run-out and reel hub mismatch, tape speed data related to a tape coupled with an operating drive reel is electronically measured. The tape speed data is correlated with drive reel rotation angles. The correlated tape speed data is translated to drive reel hub radii variations with respect to the drive reel rotation angles. The drive reel hub radii variations comprise an operational measure of reel off-center run-out and reel hub mismatch of the drive reel.