Multilayer optical disc having a layer indication
AssigneeKoninklijke Philips Electronics N.V.
InventorsPierre Woerlee, Wilhelmus Koppers, Hubert Cecile Martens, Ronald Van Den Oetelaar
Life of this patent
Estimating the term…
Loading patent…
AssigneeKoninklijke Philips Electronics N.V.
InventorsPierre Woerlee, Wilhelmus Koppers, Hubert Cecile Martens, Ronald Van Den Oetelaar
Estimating the term…
A multilayer record carrier is for recording information by writing marks representing addressable blocks in a track. Each recording layer has a pre-formed recording control pattern for indicating the track, the pattern comprising physical addresses (59) that indicate the physical position of the physical address with respect to a starting point of the track. The predefined number of bits of the physical address indicates the physical position with respect to a starting point of the track. At least one address bit of the predefined number of address bits of the physical address is allocated as a layer address bit (60) that has a value indicating the recording layer. A recording device has a layer unit (34) for detecting a recording layer in dependence of the layer address bit.
Record carrier of a writable type for recording information by writing marks in a track via a beam of radiation entering through an entrance face of the record carrier, the marks being recorded in recording units representing addressable blocks of information, the record carrier comprising
Device for recording marks in a track on a record carrier (11) via a beam of radiation (24), the record carrier comprising
Dependencies are inferred from the claim text.