Contents recording medium compensation system, contents recording and playback devices, and contents recording and playback methods

• US 20060092806A1
• Filed: 10/27/2005
• Published: 05/04/2006
• Est. Priority Date: 10/29/2004
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Ohno, Katsuya
• Application Number:
  US11/258,875
• Publication Number:
  US 20060092806A1
• Time in Patent Office: Days
• US Class Current: 369/59.25
• CPC Class Codes: G11B 20/1879 Direct read-after-write methods
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers

Abstract

A contents recording medium compensation system comprises a contents player which reads contents from a contents recording medium for playback and a contents server which is the provider of the contents recording medium and, when accessed by the player over a network, provides it with defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect. The contents player identifies the contents provider from the recording medium and then makes access to the contents server to obtain the defect information and the correction contents in the presence of a defect. When the defect information indicates the presence of a defect at the time of playing back the contents on the recording medium, the contents player replaces defective contents read from the recording medium with the correction contents.

Claims

1. A contents recording medium compensation system comprising:

a contents player configured to read from contents from a contents recording medium and plays them back; and

a contents server configured to be the provider of the contents recording medium and, when accessed over a network, provides defect information indicating the presence or absence of a defect in the contents and correction contents in the presence of a defect, wherein

the contents player being configured to identify the provider from the contents recording medium, make access to the contents server, obtain the defect information and the correction contents in the presence of a defect from the contents server, and, when the defect information indicates the presence of a defect, replace defective contents with the correction contents at the time of playing back the contents recording medium.

2. A contents player which is used with a contents recording medium compensation system having a contents server which is the provider of a contents recording medium and, when accessed over a network, provides defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect, the contents player comprising:

an address information obtaining device configured to obtain address information of the contents server by identifying the provider from the contents recording medium in the set state;

a communication device configured to be connected to the network for making access to the contents server through the address information;

an information obtaining device configured to obtain defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect from the server by presenting identification information of the recording medium to the server through the communication unit;

an information storage device configured to store the defect information and the correction contents in the presence of a defect; and

a contents replacing device configured to replace defective contents read from the recording medium with the correction contents, when the defect information in the information storage device indicates the presence of a defect in the contents recorded on the recording medium in playing back the contents.

3. The contents player according to claim 2, wherein the address information obtaining device obtains the address information of the contents server by reading address information previously recorded on the contents recording medium.

4. The contents player according to claim 2, wherein the address information obtaining device obtains the address information of the contents server by reading provider information previously recorded on the contents recording medium and then referring to a previously prepared provider-to-address mapping database.

5. A contents recording device which is used with a contents recording medium compensation system having a contents server which is the provider of a contents recording medium and, when accessed over a network, provides defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect, the contents recording device comprising:

an address information obtaining device configured to obtain address information of the contents server by identifying the provider from the contents recording medium in the set state;

a communication device configured to be connected to the network for making access to the contents server through the address information;

an information obtaining device configured to obtain defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect from the server by presenting identification information of the recording medium to the server through the communication device;

an information storage device configured to store the defect information and the correction contents in the presence of a defect; and

contents replacing device configured to replace defective contents read from the recording medium with the correction contents, when the defect information in the information storage device indicates the presence of a defect in the contents recorded on the recording medium in duplicating the contents onto another recording medium.

6. The contents recording device according to claim 5, wherein the address information obtaining device obtains the address information of the contents server by reading address information previously recorded on the contents recording medium.

7. The contents recording device according to claim 5, wherein the address information obtaining device obtains the address information of the contents server by reading provider information previously recorded on the contents recording medium and then referring to a previously prepared provider-to-address mapping database.

8. A contents playback method which is used with a contents recording medium compensation system having a contents server which is the provider of a contents recording medium and, when accessed over a network, provides defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect, the contents playback method comprising the steps of:

obtaining address information of the contents server by identifying the provider from the contents recording medium in the set state;

obtaining defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect from the server by making access to the contents server through the address information over the network to present identification information of the recording medium to it;

storing the defect information and the correction contents in the presence of a defect; and

replacing defective contents read from the recording medium with the correction contents, when the defect information in the information storage device indicates the presence of a defect in the contents recorded on the recording medium in playing back the contents.

9. A contents recording method which is used with a contents recording medium compensation system having a contents server which is the provider of a contents recording medium and, when accessed over a network, provides defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect, the contents recording method comprising the steps of:

obtaining address information of the contents server by identifying the provider from the contents recording medium in the set state;

obtaining defect information indicating the presence or absence of a defect in the contents recorded on the recording medium and correction contents in the presence of a defect from the server by making access to the contents server through the address information over the network to present identification information of the recording medium to it;

storing the defect information and the correction contents in the presence of a defect; and

replacing defective contents read from the recording medium with the correction contents, when the defect information in the information storage device indicates the presence of a defect in the contents recorded on the recording medium in duplicating the contents onto another recording medium.