Unlock instant, AI-driven research and patent intelligence for your innovation.

Method of recording data on a dual-layer optical write-once disc

A technology for recording data and optical discs, used in the field of data replication

Inactive Publication Date: 2008-05-21
KONINK PHILIPS ELECTRONICS NV
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The video recording application now loses the advantage that it can determine where to perform a layer jump

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of recording data on a dual-layer optical write-once disc
  • Method of recording data on a dual-layer optical write-once disc
  • Method of recording data on a dual-layer optical write-once disc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036]FIG. 1 schematically shows a cross-section of a dual-layer DVD+R disc with various divisions and data recorded on the disc. Dual layer optical disc 10 includes an inner drive zone 12 followed by a lead-in zone 14 . Radially outward from the lead-in zone 14 is located a data zone 16 followed by an intermediate zone 18 . All said areas are divided into a first layer 20 and a second layer 22 . The data area 16 is further divided. Starting from the boundary of the data area 16 to the lead-in area 14, the data area comprises one, two or even more reserved segments 24 in the writing direction. These segments are used after video recording to store organizational data. In the currently used DVD+R-Video format, the reserved area includes exactly one reserved segment. This is also possible if there are separate segments for data. However, the data segment contains file system data possibly using units according to the UDF 1.5 standard. This has the advantage that the disc c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a method of recording data on a dual- layer optical write-once disc (10), comprising the steps of: creating a first-layer video-data fragment (28) on a first layer (20) of the optical disc, the first-layer video-data fragment extending from a minimum first-layer video- data radius within a data zone of the disc to an outer radius within the data zone of the disc, the outer radius defining a layer boundary (38), creating a second- layer video-data fragment (40) on a second layer (22) of the optical disc, the second-layer video-data fragment extending from minimum second-layer video-data radius within the data zone of the disc to the layer boundary, - writing video data (32) to the first-layer video-data fragment, starting from an inner radius of the disc up to a maximum first-layer video-data radius smaller than or equal to the layer boundary, writing video data to the second- layer video-data fragment, starting from the layer boundary, and - if the maximum first-layer video-data radius is smaller than the layer boundary, writing a Buffer Cell (66) to the first-layer video-data fragment extending from the maximum first-layer video-data radius to the layer boundary. The present invention further elates to a dual-layer optical disc and an apparatus for recording data on a dual- layer optical disc.

Description

technical field [0001] The invention relates to a method of recording data on a dual-layer optical disc. In particular, the invention relates to a method of recording data on dual-layer write-once (R) data carriers such that they are mutually compatible with dual-layer repeat read / write (RW) data carriers, eg for data replication purposes. Furthermore, the present invention relates to a dual-layer optical disc and a device for recording data on a dual-layer optical disc. Background technique [0002] Various standards have been defined in order to ensure the compatibility of DVD data carriers and DVD devices. One problem with these standards is compatibility between DVD+R and DVD+RW. By making a recordable disc (DVD+R) compatible with a re-readable disc (DVD+RW), a copy of the final DVD+R disc on a DVD+RW disc can be edited based on the universal standard of DVD+RW. [0003] The DVD+R video format specification has been extended to accommodate video recording on dual-laye...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G11B27/034
CPCG11B2220/218G11B2220/2583G11B2220/2562G11B2220/235G11B2220/216G11B27/034G11B7/0045
Inventor W·德哈恩
Owner KONINK PHILIPS ELECTRONICS NV