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:
Jun. 06, 2000
Filed:
Oct. 21, 1998
Richard Leo Galbraith, Rochester, MN (US);
Larry A Navarro, Jr, Rochester, MN (US);
Todd Carter Truax, Zumbrota, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A phase locked loop unlock detector is provided for a data detection channel in a direct access storage device (DASD). The phase locked loop unlock detector includes a counter for generating a threshold reference relative to a reference signal. An unlock window generator is coupled to the counter for generating an unlock window signal. An unlock error detector is coupled to the unlock window generator for comparing a variable frequency signal with the unlock window signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile