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Reproduction apparatus

A reproducing device and sector technology, which is applied in the directions of carrier indicating device, digital recording/reproducing, and optical recording/reproducing, etc., can solve the problem of data error reproduction, etc., and achieve the effect of realizing a reproducing device and a cheap reproducing device.

Inactive Publication Date: 2004-05-12
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in the disc reproducing apparatus 60, when reproducing a disc recorded in multi-session, if the amount of data stored in the first session is small, data not intended to be reproduced is sometimes erroneously reproduced.

Method used

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  • Reproduction apparatus
  • Reproduction apparatus
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Experimental program
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Embodiment Construction

[0047] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the drawings, constituent elements having the same function are identified with the same numerals.

[0048] FIG. 1 is a block diagram of a disc reproducing apparatus 100 according to an embodiment of the present invention. The disc reproducing apparatus 100 reproduces data recorded on the loaded disc 1 . Disk 1 is a multisession disk having multiple sessions. The "session" is a recording unit composed of three recording areas, ie, a lead-in area, a program area and a lead-out area. The program area of ​​each sector stores program tracks including content data (eg, audio data, video data, and / or data used in a computer). The data used in the computer includes CD-ROM data (such as MP3 format compressed audio signals).

[0049] The lead-in area stores table of contents information (hereinafter referred to as TOC information) as index information specifyi...

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PUM

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Abstract

In a multi-session disc including both audio session and data session, the data session is correctly recognized and accessed. The reproducing apparatus is a reproducing apparatus of a multi-session disc mixing a session of first type recording first data and a session of second type recording second data different from the first data, comprising an optical pickup for accessing the session of first type and the session of second type, a judging unit for judging a type of the session accessed by the optical pickup, and a limiting unit for limiting the session of first type to a reproducible session when the session of second type judged by the judging unit is present at an access position after the session of first type.

Description

technical field [0001] The present invention relates to the reproduction of a multi-session disc. Background technique [0002] A compact disc (CD) was previously a medium in which users could not write data. Now, a data-writable medium such as a recordable compact disc (CD-R) or a rewritable compact disc (CD-RW) has been developed. Such a medium can be manufactured and reproduced by a disc recording and reproducing apparatus for the medium. [0003] The disc recording and reproducing apparatus can manufacture CD-R and CD-RW not only as ordinary single-session CDs but also as multi-session CDs. A "session" is a recording unit made on a disc. Fig. 5 illustrates an example of the data format of a disc recorded in a single session. A single-session disc consists of a lead-in area L1, program area PA and lead-out area LO. As index information, table of contents information (hereinafter referred to as TOC information) is recorded in the lead-in area L1. Conventional CDs and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/005G11B20/10G11B20/12G11B27/00G11B27/10G11B27/11G11B27/30G11B27/32G11B27/34
CPCG11B2220/65G11B27/3063G11B2020/10888G11B27/329G11B27/11G11B2220/2545G11B27/105G11B20/10G11B20/1254G11B27/34G11B7/005
Inventor 张替慎一远藤聪
Owner PANASONIC CORP