Contents providing system, and computer program, recording medium, terminal device and server used therefor

• US 20040083178A1
• Filed: 03/07/2003
• Published: 04/29/2004
• Est. Priority Date: 03/12/2002
• Status: Abandoned Application

• Current Assignee: TDK Corporation
• Original Assignee: TDK Corporation
• Inventors: Oouchi, Hiroyo, Tanaka, Toshifumi, Namioka, Takashi
• Application Number:
  US10/384,362
• Publication Number:
  US 20040083178A1
• Time in Patent Office: Days
• US Class Current: 705/50
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00623 wherein the modification to the logical format directly concerns user data
• CPC Class Codes: G11B 20/0063 wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode
• CPC Class Codes: G11B 20/00746 wherein the usage restriction can be expressed as a specific number
• CPC Class Codes: G11B 20/0084 wherein the usage restriction can be expressed as a specific time or date
• CPC Class Codes: G11B 20/00855 involving a step of exchanging information with a remote server
• CPC Class Codes: H04N 21/25816 involving client authentication restricting access to computer systems by authenticating users using a predetermined code G06F21/33; cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/42646 for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
• CPC Class Codes: H04N 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 7/163 by receiver means only
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A contents providing system is provided with a server which stores two or more contents files, a 1st terminal device which issues a recording medium recorded with download permission information for permitting download of at least one of the contents files is recorded and a 2nd terminal device which reads the download permission information from the recording medium and transmits it to the server. The server permits download of the corresponding contents file among the two or more contents files based on the download permission information transmitted from the 2nd terminal device.

Claims

1. A contents providing system comprising:

a server which stores two or more contents files;

a 1st terminal device which issues a recording medium recorded with download permission information for permitting download of at least one of the contents files is recorded; and

a 2nd terminal device which reads the download permission information from the recording medium and transmits it to the server, which server permits download of the corresponding contents file among the two or more contents files based on the download permission information transmitted from the 2nd terminal device.

2. A recording medium recorded with download permission information for permitting download of at least one contents file among two or more contents files stored in a server.

3. The recording medium according to claim 2, wherein a contents file is recorded together with the download permission information.

4. The recording medium according to claim 2, wherein information specific to the terminal device which downloaded the contents file is further recorded.

5. The recording medium according to claim 2, which recording medium has a 1st recording area of a predetermined sector length and in which the download permission information is recorder and a 2nd recording area of a sector length different from the 1st recording area.

6. The recording medium according to claim 2, which recording medium has a 1st recording area in which it is possible to record and reproduce using a standard format and a 2nd recording area it which it is impossible to record and reproduce using the standard format, data for collation being recorded in the 2nd recording area.

7. The recording medium according to claim 2 which has pre-pits and is at least write-once type, wherein the download permission information is recorded suing the pre-pits.

8. The recording medium according to claim 2, which recording medium is further recorded with download condition information defining conditions for downloading the contents file.

9. The recording medium according to claim 8, wherein the download condition information is download number information and/or download expiration date information.

10. A computer program that causes a computer connected with a communication network to perform in succession the steps of:

accessing a server through the communication network;

reading download permission information from a recording medium;

transmitting the download permission information to the server; and

downloading the contents file from the server when the server permits the download based on the download permission information,

the download permission information being information recorded on the recording medium for permitting download of at least one contents file among two or more contents files stored in the server.

11. A recording medium recorded with a computer program that causes a computer connected with a communication network to perform in succession the steps of:

accessing a server through the communication network;

reading download permission information from a recording medium;

transmitting the download permission information to the server; and

downloading the contents file from the server when the server permits the download based on the download permission information,

the download permission information being information recorded on the recording medium for permitting download of at least one contents file among two or more contents files stored in the server.

12. A terminal device comprising:

means for accessing a server through a communication network;

means for reading download permission information from a recording medium and transmitting it to the server; and

means for downloading the contents file from the server when the server permits the download based on the download permission information,

the download permission information being information recorded on the recording medium for permitting download of at least one contents file among two or more contents files stored in the server.

13. A computer program that causes a computer connected with a communication network to perform in succession the steps of:

communicating with a terminal device through the communication network;

permitting download to the terminal device of a contents file among two or more contents files that corresponds to the download permission information transmitted from the terminal device; and

supplying the contents file to the terminal device when the download is permissible based on the download permission information.

14. A recording medium recorded with a computer program that causes a computer connected with a communication network to perform in succession the steps of:

communicating with a terminal device through the communication network;

permitting download to the terminal device of a contents file among two or more contents files that corresponds to the download permission information transmitted from the terminal device; and

supplying the contents file to the terminal device when the download is permissible based on the download permission information.

15. A server comprising:

means for communicating with a terminal device through a communication network;

means for storing a plurality of content files;

means for permitting download of one contents file among the plural contents files that corresponds to the download permission information transmitted from the terminal device; and

means for supplying the contents file when the download is permissible based on the download permission information.

16. A terminal device comprising:

means for recording in a recording medium download permission information for permitting download of at least one contents file among two or more contents files stored in a server; and

means for issuing the recording medium.