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:
Oct. 15, 2013
Filed:
Dec. 14, 2007
Kum Chung Loh, Singapore, SG;
Yu Zhou, Singapore, SG;
Kum Chung Loh, Singapore, SG;
Yu Zhou, Singapore, SG;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A method to automatically detect and rectify a tray block in a disk drive comprising detecting an occurrence of a tray block in a disk drive upon receiving a tray-out command or a tray-in command by determining whether the tray is in an intermediate position for a predetermined time period, the intermediate position being a position between a first position within a casing of the disk drive and a second position projecting completely outwards from the casing, the tray arranged to receive a record carrier when in the second position and being supported for movement between the first position and the second position. The detected tray block is rectified by cleaning a brush-commutator interface of a tray motor arranged to move the tray between the first position and the second position and is useful for optical recorders and/or players which have a design of a tray open/close mechanism.