DIGITAL BROADCASTING SYSTEM AND METHOD THEREOF

• US 20080028423A1
• Filed: 07/31/2007
• Published: 01/31/2008
• Est. Priority Date: 07/31/2006
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Woo, Sang-Wook
• Application Number:
  US11/831,493
• Publication Number:
  US 20080028423A1
• Time in Patent Office: Days
• US Class Current: 725/32
• CPC Class Codes: G09B 19/06 Foreign languages with audible presentation of material to be studied G09B5/04
• CPC Class Codes: G09B 5/06 with both visual and audible presentation of the material to be studied
• 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 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• 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 21/631 Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
• CPC Class Codes: H04N 21/8133 specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A system and a method for providing a digital broadcasting service simultaneously with documented information related to a digital broadcast are provided. The system includes a broadcasting station for transmitting digital broadcast data on each broadcast channel; a data server for storing document information corresponding to the digital broadcast data on each broadcast channel, for searching for requested document information corresponding to prescribed digital broadcasting data, and for transmitting the requested document information; and a digital broadcast receiving apparatus for requesting the data server to transmit the document information corresponding to the digital broadcast data received from the broadcasting station, and for outputting the corresponding document information simultaneously with the digital broadcast data if the corresponding document information is received from the data server in reply to a request. Advantageously, the user can conveniently view with a data service the documented information (i.e., material for a place or an event related to broadcast) pertinent to the digital broadcast program while viewing the digital broadcast.

Claims

1. A digital broadcasting system, comprising:

a broadcasting station for transmitting digital broadcasting data on each broadcast channel;

a data server for storing document information corresponding to the digital broadcasting data on each broadcast channel, for searching for requested document information if there exists a request for document information corresponding to prescribed digital broadcasting data, and for transmitting the requested document information; and

a digital broadcast receiving apparatus for requesting the data server to transmit the document information corresponding to the digital broadcasting data received from the broadcasting station, and for outputting the corresponding document information simultaneously with the digital broadcasting data if the corresponding document information is received from the data server in reply to the request.

2. The digital broadcasting system as claimed in claim 1, wherein the data server transmits the requested document information via a data network.

3. The digital broadcasting system as claimed in claim 2, wherein the requested document information corresponds to document data related to a program of digital broadcasting.

4. The digital broadcasting system as claimed in claim 1, wherein the digital broadcast receiving apparatus determines if the document information has been downloaded corresponding to the digital broadcasting data on receiving the digital broadcasting data from the broadcasting station, and requests the data server to transmit the document information if a user makes a request for the document information.

5. The digital broadcasting system as claimed in claim 4, wherein the digital broadcast receiving apparatus transmits to the data server a message for requesting the document information, which includes a packet identifier of the digital broadcasting data, if the user makes request for the document information.

6. The digital broadcasting system as claimed in claim 5, wherein the data server classifies the document information corresponding to the digital broadcasting data on each broadcast channel according to the packet identifier, and stores the classified document information.

7. The digital broadcasting system as claimed in claim 6, wherein the data server searches previously stored document information for document information having the same packet identifier as a packet identifier included in the message if the message for requesting the document information is received from the digital broadcast receiving apparatus, reads the searched document information, and transmits the read document information to the digital broadcast receiving apparatus.

8. The digital broadcasting system as claimed in claim 7, wherein the data server transmits a message reporting the nonexistence of the requested document information to the digital broadcast receiving apparatus if the data server cannot find the requested document information.

9. The digital broadcasting system as claimed in claim 1, wherein the digital broadcast receiving apparatus displays the received document information in a prescribed position on an output screen of digital broadcasting in Picture-In-Picture format.

10. The digital broadcasting system as claimed in claim 9, wherein the digital broadcast receiving apparatus scrolls the currently displayed document information whenever a predetermined key is pressed, and displays the scrolled document information in place of the currently displayed document information.

11. The digital broadcasting system as claimed in claim 1, wherein the digital broadcast receiving apparatus displays the document information on an overall output screen of an output unit if the received digital broadcasting data corresponds to a program of audio broadcasting.

12. The digital broadcasting system as claimed in claim 1, wherein the digital broadcast receiving apparatus determines if document information has been downloaded corresponding to the digital broadcasting data when the digital broadcasting data received from the broadcasting station corresponds to a program of educational broadcasting, and requests the data server to transmit the document information if a user makes a request for the document information.

13. The digital broadcasting system as claimed in claim 1, wherein the broadcasting station comprises the data server.

14. The digital broadcasting system as claimed in claim 1, wherein the data server receives from the broadcasting station the document information corresponding to the digital broadcasting data of each broadcast channel, and stores the received document information.

15. The digital broadcasting system as claimed in claim 1, wherein the data server receives, from an external apparatus for special use, document information corresponding to the digital broadcasting data of each broadcast channel, and stores the received document information.

16. The digital broadcasting system as claimed in claim 15, wherein the data server receives the document information at every preset cycle or whenever the document information changes.

17. An apparatus for receiving a digital broadcast, the apparatus comprising:

a digital broadcast receiving unit for receiving digital broadcast data on a broadcast channel requested by a user;

a wireless transmitting-receiving unit for requesting a data server to transmit document information corresponding to the digital broadcasting data, and for receiving the requested document information, wherein the data server stores document information corresponding to a broadcast program on each broadcast channel;

an output unit for outputting the received document information simultaneously with the digital broadcasting data if the requested document information is received by the wireless transmitting-receiving unit; and

a control unit for controlling an overall operation of the apparatus for receiving a digital broadcast.

18. The apparatus as claimed in claim 17, wherein the wireless transmitting-receiving unit receives the document information via a data network.

19. The apparatus as claimed in claim 18, wherein the document information corresponds to document data related to a program of digital broadcasting.

20. The apparatus as claimed in claim 17, wherein the control unit checks if the digital broadcast receiving unit has downloaded the document information corresponding to the received digital broadcasting data, and controls the apparatus for receiving a digital broadcast to request the data server to transmit the requested document information if a user makes a request for the document information.

21. The apparatus as claimed in claim 20, wherein the control unit controls the apparatus for receiving a digital broadcast to generate a message for requesting the document information, which includes a packet identifier of the digital broadcasting data, if the user makes a request for the document information, and to transmit the generated message to the data server.

22. The apparatus as claimed in claim 17, wherein the control unit controls the apparatus for receiving a digital broadcast to inform the user of the nonexistence of the requested document information if the wireless transmitting-receiving unit receives a message reporting the nonexistence thereof.

23. The apparatus as claimed in claim 17, wherein the control unit controls the apparatus for receiving a digital broadcast to display the received document information in a prescribed position on an output screen of digital broadcasting in a Picture-In-Picture format.

24. The apparatus as claimed in claim 23, wherein the control unit controls the apparatus for receiving a digital broadcast to scroll the currently displayed document information whenever a predetermined key is pressed, and to display the scrolled document information in place of the currently displayed document information.

25. The apparatus as claimed in claim 17, wherein the control unit controls the apparatus for receiving a digital broadcast to display the document information on an overall output screen of the output unit if the received digital broadcasting data corresponds to a program of audio broadcasting.

26. The apparatus as claimed in claim 17, wherein the received digital broadcasting data corresponds to a program of educational broadcasting.

27. A method for providing a digital broadcasting service in a digital broadcast receiving apparatus, the method comprising the steps of:

(1) receiving digital broadcasting data on a broadcast channel requested by a user;

(2) requesting a data server to transmit document information corresponding to the digital broadcasting data, wherein the data server stores document information corresponding to a broadcast program of each broadcast channel; and

(3) outputting the received document information simultaneously with the digital broadcasting data if the requested document information is received from the data server.

28. The method as claimed in claim 27, wherein the document information is received via a data network.

29. The method as claimed in claim 28, wherein the document information corresponds to document data related to a program of digital broadcasting.

30. The method as claimed in claim 27, wherein step (2) comprises:

(2-1) determining if the document information corresponding to the received digital broadcasting data is downloaded; and

(2-2) requesting the data server to transmit the document information if the user makes a request for the document information.

31. The method as claimed in claim 30, wherein, in step (2-2), a message for requesting the document information is transmitted to the data server if the user makes a request for the document information, wherein the message includes a packet identifier of the digital broadcasting data.

32. The method as claimed in claim 27, further comprising informing the user of the nonexistence of the requested document information if a message reporting the nonexistence thereof is received from the data server.

33. The method as claimed in claim 27, wherein, in step (3), the received document information is displayed in a prescribed position on an output screen of digital broadcasting in Picture-In-Picture format.

34. The method as claimed in claim 33, wherein, in step (3), the currently displayed document information is scrolled whenever a predetermined key is pressed, and the scrolled document information is displayed in place of the currently displayed document information.

35. The method as claimed in claim 27, wherein, in step (3), the document information is displayed on an overall output screen of an output unit if the received digital broadcasting data corresponds to a program of audio broadcasting.

36. The method as claimed in claim 27, wherein the received digital broadcasting data corresponds to a program of educational broadcasting.