Device for and method of recording information

• US 20070041280A1
• Filed: 04/08/2004
• Published: 02/22/2007
• Est. Priority Date: 04/14/2003
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Ijtsma, Pope, Nijboer, Jakob
• Granted Patent: US 8,125,866 B2
• Time in Patent Office: Days
• US Class Current: 369/30.40
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1873 Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 7/0045 Recording G11B7/006, G11B7/0065 take precedence

Abstract

A device for recording data and data structures on a write-once storage medium. The device has writing means for recording the data and the data structures and controlling means for generating the data structures and controlling the writing means. The data structures comprise space bit map and defect management structures. The controlling means are adapted to record the data structures at a predefined temporary location on the write-once storage medium and to finalize the write-once storage medium by recording the data structures at a predefined fixed location as defined for a rewritable storage medium.

Claims

1. A device for recording data and data structures on a write-once storage medium, the data structures comprising space bit map and defect management structures, the device comprising

writing means for recording the data and the data structures;

controlling means for generating the data structures and controlling the writing means;

characterized in that the controlling means are adapted to record the data structures at a predefined temporary location in a reserved area on the write-once storage medium and to finalize the write-once storage medium by recording the data structures at a predefined fixed location as defined for a rewritable storage medium.

2. A device as claimed in claim 1, characterized in that the controlling means are adapted to finalize the write-once storage medium by recording dummy data in all free parts of the reserved area.

3. A device as claimed in claim 1, characterized in that the controlling means are adapted to read the data structures from the predefined temporary location and to record the data structures at the predefined fixed location.

4. A method of recording data and data structures on a write-once storage medium, the data-structures comprising space bit map and defect management structures, the method comprising step of:

recording the data;

characterized by steps of;

recording the data structures at a predefined temporary location in a reserved area on the write-once storage medium;

finalizing the write-once storage medium by recording the data structures at a predefined fixed location as defined for a rewritable storage medium.

5. A method as claimed in claim 4, characterized by a step of:

recording dummy data in all free parts of the reserved area.

6. A method as claimed in claim 4, characterized by a step of:

reading the data structures from the predefined temporary location.

7. A write-once storage medium obtained by a method as claimed in claim 4.

8. A computer program product for recording data and data structures on a write-once storage medium, the data structures comprising space bit map and defect management structures, which program is operative to cause a processor to perform the method according to claim 4.