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. 30, 2005
Filed:
Jan. 24, 2002
Herman Petrus Van Der Kall, Eindhoven, NL;
Herman Petrus Van Der Kall, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
In a device () for reading and/or writing information from and on, a track on a medium (), a read and/or write head () can be positioned with a positioning device () relative to the medium (). The read and/or write head () comprises a carriage () and means () for maintaining the reading and/or writing in a scanning point at the track during a transverse positioning of the track relative to the carriage (). A control circuit () is present for controlling the positioning device (). There is a period of the order to magnitude of one millisecond between the supplying of a control signal to the positioning device () at a first point in time based upon which the read and/or write head () has to be positioned and the actual start of the movement of the read and/or write head (). The first point in time is before the point in time at which the maintaining means () reach the end of the track that is being read or written at the first point in time. The carriage () already moves at a certain velocity and has already been moved over a certain distance (D) when the maintaining means () reach the end of the track which is read or written.