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:
Aug. 02, 2005
Filed:
Jun. 10, 2002
Wilson Massey Fish, Yukon, OK (US);
John Garrett Lingo, Oklahoma City, OK (US);
Wilson Massey Fish, Yukon, OK (US);
John Garrett Lingo, Oklahoma City, OK (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
An arbitration and data source selection mechanism arbitrating access to a shared communication port between a servo engine and a controller of a disc drive is disclosed. In a preferred embodiment, the arbitration and data source selection mechanism, the shared communication port, the servo engine and the controller collectively share a common die of an application specific integrate circuit (ASIC). Servo control code and control code are each loaded into the ASIC for operation of the disc drive. The servo engine is allowed to hold service of the shared serial port dedicated to the servo control code for any length of time required by the servo engine. During periods of non-use by the servo control code, the servo engine releases the shared serial port to the controller for dedicated use by the control code, for a predetermined period of time.