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

Method and device for generating an identification data block for a data carrier

A data carrier and data identification technology, applied in the field of identifying data blocks, can solve the problems of long determination time, friendly operability, negative impact, disadvantage, etc.

Inactive Publication Date: 2007-06-13
KONINK PHILIPS ELECTRONICS NV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this known method, it is disadvantageous that a relatively large amount of information or data needs to be determined in order to be able to generate an identifying data block ID
It is particularly disadvantageous that the filenames of all the files contained on the CD must be determined every time, and such a determination may take a relatively long determination time, especially if the CD contains multiple files
A longer determination time has a negative impact on the user-friendly operability of CD autochanger reproduction devices working with such identification block IDs, which is very disadvantageous

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 and device for generating an identification data block for a data carrier
  • Method and device for generating an identification data block for a data carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Figure 1 shows a reproduction device 10 for reproducing a variety of data carriers. In this example, the data carrier is a compact disc (CD). The reproduction device 10 has a unit 50 for generating corresponding identification data blocks for such respective CDs. The reproduction device 10 also has a mechanical loading unit for loading a plurality of CDs. The loading unit is a CD-autochanger module 40. In this example, the CD autochanger module 40 is configured to load three CDs. (3) A CD, and optionally one of these CDs is positioned in a playback position. In Figure 1, only one CD 41 is shown, and the CD 41 is in the playback position. It may be noted that the CD autochanger module 40 can load more CDs, such as five (5) or ten (10) or one hundred (100) or only one (1) CD. It should also be noted that in addition to CDs, they can even be DVDs.

[0027] The CD41 contains information or data that is stored digitally and can be read optically. In this example, the information...

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 invention relates to a method for generating an identification data block (ID) for a data carrier (41 ), which data carrier (41) has a multiplicity of logical data blocks (300) continuously numbered with respective block numbers in a data block size, a reading of the data of the logical data blocks is carried out and the generating of the identification data block (ID) is carried out by means of a combining function from read first data of a logical first data block (301) defined by a first block number and from read second data of a logical second data block (302) defined by a second block number, wherein the logical second data block defined by the second block number is determined in dependence on the read third data of a logical third data block (303) defined by a third block number.

Description

Technical field [0001] The present invention relates to a method for generating identification data blocks of a data carrier, the data carrier having various logical data blocks, and the logical data blocks are consecutively numbered with respective block numbers according to the size of the data block. [0002] The present invention also relates to an apparatus for generating identification data blocks of a data carrier, the data carrier having a variety of logical data blocks, the logical data blocks being numbered consecutively with respective block numbers according to the size of the data block. [0003] The invention also relates to a computer program product, which is predetermined and designed to perform the method given in the first paragraph above. The invention also relates to a computer that processes a computer program product according to the above paragraph. Background technique [0004] The applicant has put the above-mentioned equipment and the computer program p...

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): G11B27/28G11B27/10
CPCG11B2220/2545G11B2220/2562G11B27/28G11B27/11G11B20/00G11B20/10G11B20/12
Inventor W·盖尔伯
Owner KONINK PHILIPS ELECTRONICS NV