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. 26, 2001
Filed:
Feb. 09, 1999
Robert B. Staszewski, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
The hard disk drive includes a storage media system (,) and a read channel (,) for reading data from the storage media system (,). The read channel (,) is operable to read a preamble. Also included is a phase lock loop (,) which is coupled to the read channel (,) and operable to acquire the preamble signal. The phase lock loop (,) includes a timing gradient generator (,) which is operable to determine a timing gradient using a single term timing gradient equation. Also included is a loop filter (,), coupled to the timing gradient generator (,). The loop filter (,) determines an integral timing. A voltage controlled oscillator (,) is coupled to the loop filter (,) and determines a timing phase, the timing phase representing a timing adjustment for the read channel (,).