ROTOR POSITION DETERMINATION FOR A MULTI-PHASE MOTOR

Details for Australian Patent Application No. 2003289936 (hide)

Owner SEAGATE TECHNOLOGY LLC

Inventors TIEU, Triet

Pub. Number AU-A-2003289936

PCT Number PCT/US2003/0169

PCT Pub. Number WO2004/019335

Priority 60/404,681 20.08.02 US

Filing date 30 May 2003

Wipo publication date 11 March 2004

International Classifications

G11B 019/20 Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor - Driving

G11B 019/28 Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor - Speed controlling, regulating or indicating

H02P 006/18 Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position

H02P 006/22 Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position

Event Publications

8 April 2004 Complete Application Filed

  Priority application(s): 60/404,681 20.08.02 US

22 April 2004 Application Open to Public Inspection

  Published as AU-A-2003289936

21 July 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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