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:
Feb. 13, 2007
Filed:
Apr. 01, 2003
Petrus Henricus Cornelius Bentvelsen, Eindhoven, NL;
Paulus Franciscus Vollebregt, 's-Gravenhage, NL;
Petrus Henricus Cornelius Bentvelsen, Eindhoven, NL;
Paulus Franciscus Vollebregt, 's-Gravenhage, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method of providing a read-only record carrier on which user data can be recorded at predetermined recordable positions of subcode frames of a subcode channel after mastering of said record carrier, includes the steps of setting the subcode symbols at said predetermined recordable positions to a first predetermined symbol value during mastering, calculating, for each subcode frame, error detection data over certain subcode data of said subcode frame including said subcode symbols set to said first predetermined symbol value, storing said error detection data at auxiliary data positions in said subcode frame, and setting error detection data positions in said subcode frame to a second predetermined symbol value, wherein said predetermined recordable positions of said subcode frames are provided for recording of user data to it during writing of data, and said error detection data positions of said subcode frames are provided for recording correct error detection data, calculated after recording said user data to said predetermined recordable positions, to it.