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AssigneeKoninklijke Philips Electronics N.V.
InventorsPetrus Bentvelsen, Paulus Vollebregt
Estimating the term…
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.
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, said method comprising the steps of:
A method of writing user data on a read-only record carrier at predetermined recordable positions of subcode frames of a subcode channel, wherein, during mastering, the subcode symbols at said predetermined recordable positions are set to a first predetermined symbol value, for each subcode frame, error detection data are calculated over certain subcode data of said subcode frame including said subcode symbols set to said first predetermined symbol value, said error detection data are stored at auxiliary data positions in said subcode frame, and error detection data positions in said subcode frame are set to a second predetermined symbol value, said method comprising the steps of:
An apparatus for 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, said apparatus comprising:
An apparatus for writing user data on a read-only record carrier at predetermined recordable positions of subcode frames of a subcode channel, wherein, during mastering, the subcode symbols at said predetermined recordable positions are set to a first predetermined symbol value, said error detection data are stored at auxiliary data positions in said subcode frame, and error detection data positions in said subcode frame are set to a second predetermined symbol value, said apparatus comprising:
Dependencies are inferred from the claim text.