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:
Apr. 15, 2008
Filed:
Jan. 06, 2004
Applicant:
Martijn Jeroen Dekker, Eindhoven, NL;
Inventor:
Martijn Jeroen Dekker, Eindhoven, NL;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 15/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method and a device for recording an information signalin a phase change layer of a recording medium. A mark is recorded by a sequenceof write pulses and previous marks between the marks to be recorded are erased by a sequence of erase pulses. De bias power levelbetween the erase pulses is made dependent on the recording speed, thus obtaining low jitter of the recorded marks and at the same time preventing thermal cross write during erase.