Apparatus for manufacturing information record medium, information record medium, information recording apparatus and information recording method
AssigneePioneer Corporation
InventorKazuo Kuroda
Life of this patent
Estimating the term…
Abstract
On an information record medium (10, 11), record information can be recorded one time or a plurality of times by a predetermined record format. An apparatus for manufacturing the information record medium by using a stamper (27, 28) is provided with an embossed pit array forming device (20 to 26, 50) for forming on the stamper as an embossed pit array, pre-record data (SFi) which is a predetermined data row to disable overwriting on the record information in a pre-record area, which is set in advance in a range including an area (13c) assigned to information required to control a reproduction of the record information, which is recorded by the predetermined record format.
Claims36
An apparatus for forming a stamper for use in manufacturing an information record medium on which record information comprising a plurality of synchronization frames can be recorded, comprising:
- an embossed pit array forming device for forming an embossed pit array on a predetermined area on the stamper,
- wherein a lead position of the embossed pit array is set in an arrangement not overlapping with a synchronization code in each of the synchronization frames recorded on the information record medium.
A method of forming a stamper for use in manufacturing an information record medium on which record information comprising a plurality of synchronization frames can be recorded, comprising:
- an area identifying process of identifying a predetermined area on the stamper;
- and
- an embossed pit array forming process of forming an embossed pit array on the identified predetermined area,
- wherein a lead position of the embossed pit array is set in an arrangement not overlapping with a synchronization code in each of the synchronization frames recorded on the information record medium.
An information record medium on which record information comprising a plurality of synchronization frames can be recorded, wherein
- an embossed pit array is formed on a predetermined area on the information record medium, and
- a lead position of the embossed pit array is set in an arrangement not overlapping with a synchronization code in each of the synchronization frames recorded on the information record medium.
An apparatus for recording record information onto an information record medium having a record track on which record information comprising a plurality of synchronization frames can be recorded only once, comprising a pre record data recording device for recording pre-record data on a predetermined area on the record track by laser,
- wherein a lead position for recording the pre-record data is set in an arrangement not overlapping with a synchronization code in each of the synchronization frames recorded on the information record medium.
A method of recording record information onto an information record medium having a record track on which record information comprising a plurality of synchronization frames can be recorded only once, comprising:
- an area identifying process of identifying a predetermined area on the track;
- and
- a pre-record data recording process of recording pre-record data on the identified predetermined area by laser,
- wherein a lead position for recording the pre-record data is set in an arrangement not overlapping with a synchronization code in each of the synchronization frames recorded on the information record medium.
An information record medium having a record track on which record information comprising a plurality of synchronization frames can be recorded only once, wherein
- pre-record data is recorded in advance on a predetermined area on the track by laser;
- and
- a lead position for recording the pre-record data is set in an arrangement not overlapping with a synchronization code in each of the synchronization frames recorded on the information record medium.
Dependencies are inferred from the claim text.