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Hitachi GST Assigned Patent
By Jean-Jacques Maleval, Fri, August 24th, 2012
Real time monitoring inconsistent operations in HDD
The abstract of the patent published by the U.S. Patent and Trademark Office states: "Real time monitoring inconsistent operations in a hard disk drive, wherein the hard disk drive comprises a magnetic disk, a controller and a channel clock. A timing signal from the channel clock is measured in real time in the controller. Time intervals between sector identifier marks of the magnetic disk are detected using the timing signal from the channel clock during reading and writing operations of the hard disk drive in the controller. An inconsistency in the drive operations is detected in the controller based on changes in the time intervals between the sector identifier marks is detected during operation of the hard disk drive. The detection of the inconsistency in the drive operations is responded to."
The patent application was filed on Dec. 8, 2009 (12/633,518).
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COMPLETE STORAGE
START-UP DATABASE
It contains more than 350 current
storage start-ups in the world
(2/3 in USA), with, for each firm:
- Company name,
- Headquarters, web site, CEO
- Year founded,
- Business activity,
- Yearly financial funding
and total received,
- Classification by sector.