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. 10, 2008
Filed:
Jun. 25, 2004
Thomas Jan DE Hoog, Eindhoven, NL;
Rob Jacobus Matheus Coolen, Eindhoven, NL;
George Alois Leonie Leenknegt, Eindhoven, NL;
Thomas Jan De Hoog, Eindhoven, NL;
Rob Jacobus Matheus Coolen, Eindhoven, NL;
George Alois Leonie Leenknegt, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A disk drive comprising a tray (TR) for receiving a disk, the tray (TR) being supported for movement between a first position within a casing (CS) of the disk drive and a second position projecting from the casing (CS), an electric motor for moving the tray (TR) between the first and second positions, and a regulation device for regulating an electric current through the motor for regulating the rotation of the motor. The regulation device comprises a detection device for detecting a back-electromotive voltage produced during rotation of the motor for deriving position information of the tray (TR) with respect to the first and second positions.