Multimedia data transacting system and method

• US 20060015461A1
• Filed: 07/07/2005
• Published: 01/19/2006
• Est. Priority Date: 07/14/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kang, Yong-jin
• Application Number:
  US11/175,880
• Publication Number:
  US 20060015461A1
• Time in Patent Office: Days
• US Class Current: 705/51
• CPC Class Codes: H04N 21/2347 involving video stream encryption
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2541 Rights Management protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/2543 Billing , e.g. for subscription services payment schemes, architectures or protocols G06Q20/00; e-commerce G06Q30/00; arrangements for billing for the use of broadcast information or broadcast-related information H04H60/21
• CPC Class Codes: H04N 21/26613 for generating or managing keys in general key distribution for secret or secure communication involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] H04L9/083; network support of key management H04L63/06; key management for network security in communication control or processing H04W12/04
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/4405 involving video stream decryption
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/47211 for requesting pay-per-view content payment schemes payment architectures or payment protocols G06Q20/00, G07F
• CPC Class Codes: H04N 21/4753 for user identification, e.g. by entering a PIN or password cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08
• CPC Class Codes: H04N 21/63775 for uploading keys, e.g. for a client to communicate its public key to the server key management H04L9/08; network support of key management H04L63/06
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• CPC Class Codes: H04N 7/1675 Providing digital key or authorisation information for generation or regeneration of the scrambling sequence pseudo-random number generators in general G06F7/58
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A multimedia data transacting method, and an apparatus and system to perform the method, the method including extracting scrambled multimedia data from a broadcast signal received from a broadcasting station server, requesting and receiving a descramble key to descramble multimedia data, contained in the broadcast signal, that a user selects to purchase, and descrambling the selected multimedia data using the descramble key.

Claims

1. A broadcast receiving apparatus, comprising:

a broadcast signal processing unit to receive a broadcast signal transmitted from a broadcasting station server, and extract scrambled multimedia data and metadata contained in the received broadcast signal;

a storage unit to store the extracted multimedia data and metadata;

a data transmitter/receiver to transmit a message requesting a descramble key to descramble multimedia data a user wants to purchase, and to receive the descramble key; and

a control unit to descramble the multimedia data the user wants to purchase using the received descramble key.

2. The apparatus according to claim 1, wherein the data transmitter/receiver is a communication modem which performs a wired or wireless communication service.

3. The apparatus according to claim 2, wherein the descramble key is received from a communication server that provides the wired or wireless communication service.

4. The apparatus according to claim 3, wherein a fee associated with the multimedia data purchased by the user is imposed, together with a communication fee associated with the wired or wireless communication service, by a common carrier that operates the communication server.

5. The apparatus according to claim 1, wherein the descramble key is received from the broadcasting station server.

6. The apparatus according to claim 5, wherein a fee associated with the multimedia data purchased by the user is imposed together with an audience fee associated with a reception of a broadcast program provided by the broadcasting station server.

7. The apparatus according to claim 1, further comprising an application unit to execute the descrambled multimedia data.

8. The apparatus according to claim 1, wherein a predetermined amount of the scrambled multimedia data and metadata is stored in the storage unit upon the manufacture thereof.

9. The apparatus according to claim 8, wherein the control unit selects and stores the multimedia data and metadata which is not previously stored in the storage unit from the received multimedia data and metadata.

10. The apparatus according to claim 1, wherein the broadcasting station server transmits the scrambled multimedia data and metadata through a separate channel other than a general broadcast program transmitting channel.

11. The apparatus according to claim 1, wherein the broadcasting station server transmits the scrambled multimedia data and metadata in a time zone in which a general broadcast program is not being transmitted.

12. The apparatus according to claim 1, wherein the descramble key is encrypted before transmission.

13. The apparatus according to claim 12, wherein a variable used in the encryption contains at least one of first identification information to identify the multimedia data which can be descrambled by the descramble key, second identification information to identify the data transmitter/receiver, or a combination thereof.

14. The apparatus according to claim 13, wherein the first and/or second identification information is transmitted with the descramble key request.

15. A multimedia data transacting method, the method comprising:

receiving a broadcast signal transmitted from a broadcasting station server and extracting scrambled multimedia data and metadata from the broadcast signal;

requesting a descramble key to descramble the extracted multimedia data that a user wants to purchase;

receiving the descramble key as in response to the request; and

descrambling the multimedia data the user wants to purchase using the received descramble key.

16. The method according to claim 15, wherein a fee associated with the multimedia data purchased by the user is imposed according to the transmission of the descramble key.

17. The method according to claim 15, wherein the request and the reception of the descramble key is performed by a communication modem which performs a wired or wireless communication service.

18. The method according to claim 17, wherein the descramble key is received from a communication server which provides the wired or wireless communication service.

19. The method according to claim 18, wherein a fee associated with the multimedia data purchased by the user is imposed, according to the transmission of the descramble key and together with a communication fee associated with the wired or wireless communication service, by a common carrier that operates the communication server.

20. The method according to claim 15, wherein the descramble key is received from the broadcasting station server.

21. The method according to claim 20, wherein a fee associated with the multimedia data purchased by the user is imposed according to the transmission of the descramble key and together with an audience fee associated with the reception of a broadcast program provided by the broadcasting station server.

22. The method according to claim 15, wherein the broadcasting station server transmits the scrambled multimedia data and metadata through a separate channel other than a general broadcast program transmitting channel.

23. The method according to claim 15, wherein the broadcasting station server transmits the scrambled multimedia data and metadata in a time zone in which a general broadcast program is not being transmitted.

24. The method according to claim 15, wherein the descramble key is encrypted before transmission.

25. The method according to claim 15, wherein a variable used in the encryption contains at least one of first identification information to identify the multimedia data which can be descrambled by the descramble key, second identification information to identify a communication service which performs a wired or wireless communication service used for the request and the reception of the descramble key, or a combination thereof.

26. The method according to claim 25, wherein the first and/or second identification information is transmitted with the descramble key request.

27. A broadcast receiving apparatus, comprising:

a broadcast signal processing unit to receive a broadcast signal transmitted from a broadcasting station server, and extract scrambled multimedia data contained in the received broadcast signal; and

a data transmitter/receiver to request and receive a descramble key to descramble multimedia data that a user selects to purchase.

28. A multimedia data transacting method, the method comprising:

extracting scrambled multimedia data from a broadcast signal received from a broadcasting station server;

requesting and receiving a descramble key to descramble multimedia data, contained in the broadcast signal, that a user selects to purchase; and

descrambling the selected multimedia data using the descramble key.