Receiver

• US 20020021809A1
• Filed: 06/29/2001
• Published: 02/21/2002
• Est. Priority Date: 06/30/2000
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Aaltonen, Janne, Salo, Juha
• Granted Patent: US 7,280,660 B2
• Time in Patent Office: Days
• US Class Current: 380/239
• CPC Class Codes: H04H 20/42 Arrangements for resource management
• CPC Class Codes: H04H 2201/40 characterised in that additional data relating to the broadcast data are available via a different channel than the broadcast channel
• CPC Class Codes: H04H 60/23 using cryptography, e.g. encryption, authentication, key distribution
• CPC Class Codes: H04H 60/46 for recognising users' preferences
• CPC Class Codes: H04H 60/91 Mobile communication networks for accessing the Internet H04H60/85
• CPC Class Codes: H04L 63/18 using different networks or channels, e.g. using out of band channels cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/488 Data services, e.g. news ticker systems specially adapted for using meteorological information in broadcast systems H04H60/71
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/64315 DVB-H
• CPC Class Codes: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 7/142 Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
• CPC Class Codes: H04N 7/165 Centralised control of user terminal subsequent to an upstream request signal H04N7/17345; Registering at central by two-way working H04N7/17309
• CPC Class Codes: H04W 12/03 Protecting confidentiality, e.g. by encryption

Abstract

The present invention relates to receivers such as multi-carrier and cellular receivers.

Cellular receivers, in the form of portable radiotelephones are commonplace, and their design and operation is well understood. Such portable radiotelephones can be used for making and receiving telephone calls, sending and receiving messages, and even browsing world-wide computer network such as the Internet. Many standards exist for portable radiotelephones, including global system for mobile communications (GSM), general radio packet service (GPRS)

Receivers capable of receiving digital television signals, such as signals according to the terrestrial digital video broadcasting (DVB-T) standard are also commonplace.

The present invention provides a method and apparatus for receiving and transmitting signals via multiple communication channels.

Claims

1. A terminal having a first receiver for receiving an encrypted first signal from a first communications network comprising:

a second receiver for receiving from a second communications network a second signal conveying information enabling said encrypted signal to be decrypted.

2. A terminal according to claim 1, further comprising a subscriber identification module (SIM) containing security data for use in conjunction with said second signal for enabling said encrypted first signal to be decrypted.

3. A terminal according to claim 1 or 2, wherein said encrypted first signal is a digital video broadcasting signal (DVB) signal, and said first receiver is a digital video broadcasting (DVB) signal.

4. A terminal according to claim 1, 2 or 3, wherein said second signal is a global system for mobile (GSM) signal, and said second receiver is a global system for mobile (GSM) receiver.

5. A terminal according to claim 1, 2 or 3, wherein said second signal is a general packet radio service (GPRS) signal, and said second receiver is a general packet radio service (GPRS) receiver.

52. A system for transmitting and receiving according to any preceding claim.

6. A terminal having a first receiver for receiving an encrypted first signal from a first communications network comprising:

a second receiver for receiving from a second communications network a second signal conveying information enabling said encrypted signal to be decrypted and further comprising a subscriber identification module (SIM) containing security data for use in conjunction with said second signal for enabling said encrypted first signal to be decrypted.

7. Apparatus for transmitting an encrypted signal on a first communications network, comprising:

a transmitter for transmitting on a second communications network information enabling said encrypted signal to be decrypted.

8. Apparatus according to claim 7, wherein said encrypted signal is a digital video broadcasting (DVB) signal, and said first communications network is a digital video broadcasting (DVB) network.

9. Apparatus according to claim 7 or 8, wherein said second communications network is a global system for mobile (GSM) network, and said transmitter is a global system for mobile (GSM) transmitter.

10. Apparatus according to claim 7 or 8, wherein said second communications network is a general packet radio service (GPRS) network, and said transmitter is a general packet radio service (GPRS) transmitter.

11. A method of receiving an encrypted first signal from a first communications network comprising:

receiving from a second communications network a second signal conveying information enabling said encrypted signal to be decrypted; and

decrypting said encrypted first signal using said received information.

12. A method according to claim 11, further comprising using security data stored on a subscriber identification module (SIM) in conjunction with said second signal for decrypting said encrypted first signal.

13. A method according to claim 11 or 12, comprising transmitting said signal as a digital video broadcasting (DVB) signal.

14. A method according to claim 11, 12 or 13, comprising transmitting said complementary information via a global system for mobile (GSM) network.

15. A method according to claim 11, 12 or 13, comprising transmitting said complementary information via a general packet radio service (GPRS) network.

18. A method according to claim 17, comprising transmitting said signal as a digital video broadcasting (DVB) signal.

19. A method according to claim 17 or 18, comprising transmitting said complementary information via a global system for mobile (GSM) network.

20. A method according to claim 17 or 18, comprising transmitting said complementary information via a general packet radio service (GPRS) network.

16. A method of receiving an encrypted first signal from a first communications network comprising:

receiving from a second communications network a second signal conveying information enabling said encrypted signal to be decrypted; and

decrypting said encrypted first signal using said received information and security data retrieved from a subscriber identification module (SIM).

17. A method of transmitting an encrypted signal on a first communications network, comprising:

transmitting on a second communications network information enabling said encrypted signal to be decrypted.

21. A method of transmitting a signal to a receiver via a first communications network comprising transmitting complementary information relating to said signal via a second communications network, wherein said first signal contains public data and said complementary information contains personal data.

22. A method of receiving a first signal from a first communications network comprising receiving a second signal conveying complementary information relating to said first signal from a second communications network, and combining said information from said second signal with content in said first signal.

23. A method as claimed in claim 22, wherein said complementary information comprises personal data, said data being combined with generic data forming said content of said first signal.

24. A method as claimed in claim 22 or claim 23, wherein said second signal further comprises schedule and configuration data relating to said first signal identifying said content.

26. A terminal according to claim 25, further comprising a controller for configuring said first receiver according to said complementary information.

27. A terminal according to claim 25 or 26, wherein said first receiver is enabled to receive said first signal in response to said complementary information.

28. A terminal according to claim 25, 26 or 27, wherein said complementary information comprises schedule and configuration data.

30. A terminal according to claim 29, further comprising decision means for deciding whether said second signal should enable said first receiver in dependence on the stored user preferences.

25. A terminal having a first receiver for receiving a first signal from a first communications network comprising:

a second receiver for receiving a second signal conveying complementary information relating to said first signal from a second communications network.

29. A terminal according to any one of claims 25 to 28, further comprising storage means for storing user preferences.

31. A terminal according to any of claims 25 to 30, wherein said first signal is a digital video broadcasting (DVB) signal, and said first receiver is a digital video broadcasting (DVB) receiver.

32. A terminal according to any of claims 25 to 31, wherein said second signal is a global system for mobile (GSM) signal, and said second receiver is a global system for mobile (GSM) receiver.

33. A terminal according to any of claims 25 to 31, wherein said second signal is a general packet radio service (GPRS) signal, and said second receiver is a general packet radio service (GPRS) receiver.

35. Apparatus according to claim 34, wherein said complementary information comprises schedule and configuration data relating to said first signal.

36. Apparatus according claim 34 or 35, further comprising storage means for storing details of subscriber preferences.

37. Apparatus according to claim 36, further comprising decision means for deciding to which subscribers to transmit said second signal in dependence on said stored subscriber preferences.

34. Apparatus for transmitting a signal to a receiver via a first communications network comprising:

a transmitter for transmitting complementary information relating to said signal via a second communication network.

38. Apparatus according to any of claims 34 to 37, wherein said first signal is a digital video broadcasting (DVB) signal, and said first communications network is a digital video broadcasting (DVB) network.

39. Apparatus according to any of claims 34 to 38, wherein said second communications network is a global system for mobile (GSM) network, and said transmitter is a global system for mobile (GSM) transmitter.

40. Apparatus according to any of claims 34 to 38, wherein said second communications network is a general packet radio service (GPRS) network, and said transmitter is a general packet radio service (GPRS) transmitter.

41. A method of receiving a first signal from a first communications network comprising:

receiving a second signal conveying complementary information relating to said first signal from a second communications network.

42. A method according to claim 41, further comprising receiving said first signal in accordance with said complementary information.

43. A method according to claim 41 or 42, further comprising storing user preferences.

44. A method according to claim 43, further comprising deciding whether said second signal should be received in dependence on said stored user preferences.

46. A method according to claim 45, wherein the step of transmitting complementary information comprises transmitting schedule and configuration data relating to said signal.

47. A method according to claim 45 or 46, further comprising storing details of subscriber preferences.

48. A method according to claim 47, further comprising deciding whether to transmit said complementary information to a subscriber in dependence on said stored preferences.

45. A method of transmitting a signal to a receiver via a first communications network comprising:

transmitting complementary information relating to said signal via a second communication network.

49. A method according to any of claims 45 to 48, comprising transmitting said signal as a digital video broadcasting (DVB) signal.

50. A method according to any one of claims 45 to 49, comprising transmitting said complementary information via a global system for mobile (GSM) network.

51. A method according to any one of claims 45 to 49, comprising transmitting said complementary information via a general packet radio service (GPRS) network.

53. A terminal substantially as hereinbefore described with reference to the accompanying drawings.

54. Apparatus for transmitting a signal substantially as hereinbefore described with reference to the accompanying drawings.

55. A method of receiving substantially as hereinbefore described with reference to the accompanying drawings.

56. A method of transmitting substantially as hereinbefore described with reference to the accompanying drawings.