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:
Jul. 04, 2000
Filed:
Mar. 31, 1997
Nicolas C Assouad, Niwot, CO (US);
Adaptec, Inc., Milpitas, CA (US);
Abstract
A write synchronization system in a headerless format magnetic disk device. The system transmits encoded synchronization signals containing disk administration information such as servo burst information between a servo controller and other disk controller components such as a hard disk controller and a microprocessor or digital signal processor. The servo controller interprets the disk administration information read from the magnetic disk and sends an encoded signal to the other disk controller components for each servo burst encountered on when reading the disk. The disk administration information in the signals can be verified by comparing the contents of a present signal to the contents of at least one previous signal to determine if a servo burst from a sequence of servo bursts has been missed. A missing servo burst can also be identified by measuring the time interval between signals from the servo controller.