METHOD FOR CONTROLLING ELECTRONIC PROGRAM INFORMATION AND APPARATUS FOR RECEIVING THE ELECTRONIC PROGRAM INFORMATION

• US 20090125940A1
• Filed: 04/07/2008
• Published: 05/14/2009
• Est. Priority Date: 04/06/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Byoung Gill, Lee, Hyoung Gon, Choi, In Hwan, Kim, Jong Moon, Song, Won Gyu, Kwak, Kook Yeon, Kim, Jin Woo, Cho, Eun Hyung
• Granted Patent: US 8,276,177 B2
• Time in Patent Office: Days
• US Class Current: 725/39
• CPC Class Codes: H04L 1/006 Trellis-coded modulation
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• 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 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4381 Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/462 Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006

Abstract

A data transmission system for minimizing the number of errors during Tx/Rx times of digital data under mobile environments, and a data processing method for the same are disclosed. The system additionally codes digital data, and transmits the resultant coded data. As a result, the program information has a strong resistance to noise and channel variation, and can quickly cope with the rapid channel variation.

Claims

1. A method for controlling electronic program information comprising:

receiving coded mobile service data;

demodulating the received mobile service data;

extracting electronic program information from demodulated mobile service data; and

displaying the extracted electronic program information.

2. The method according to claim 1, wherein receiving of the coded mobile service data is implemented by selective reception from data multiplexed main service data and mobile service data.

3. The method according to claim 2, wherein the selective reception includes the steps:

receiving the mobile service data from a burst-on section, on the basis of the mobile service data and the main service data which have been multiplexed in a burst structure including the burst-on section and a burst-off section.

4. The method according to claim 1, wherein the receiving step of the coded mobile service data includes:

receiving a data group including at least one mobile service data packet.

5. The method according to claim 4, wherein the data group includes known data in a predetermined data region.

6. The method according to claim 1, wherein the receiving step of the coded mobile service data includes:

receiving main service data and mobile service data during a burst-on section, and

the mobile service data is additional coded as compared to the main service data.

7. The method according to claim 1, wherein the demodulating step of the received mobile service data includes:

performs at least one of a carrier recovery and timing recovery on the received mobile service data using known data which has been inserted into valid data and transmitted.

8. The method according to claim 1, wherein the demodulating step of the received mobile service data includes:

compensating for channel distortion contained in mobile service data using known data which has been inserted into valid data.

9. The method according to claim 1, wherein the demodulating step of the received mobile service data includes:

decoding the mobile service data in units of a block.

10. The method according to claim 1, further comprising:

storing the extracted electronic program information.

11. The method according to claim 1, further comprising:

configuring the extracted electronic program information in the form of a display format.

12. The method according to claim 1, further comprising:

receiving a user control signal; and

controlling a display of the electronic program information by the received user control signal.

13. The method according to claim 1, further comprising:

receiving a user control signal; and

controlling a processing of a broadcast signal by the received user control signal.

14. An apparatus for receiving electronic program information comprising:

a signal receiving unit for receiving coded mobile service data;

a demodulating unit for demodulating the received mobile service data;

a data decoder for extracting electronic program information from the demodulated mobile service data; and

an application controller for controlling an display of the extracted electronic program information.

15. The apparatus according to claim 14, wherein the signal receiving unit receives the mobile service data during a burst-on section, on the basis of the mobile service data and the main service data which have been multiplexed in a burst structure including the burst-on section and a burst-off section.

16. The apparatus according to claim 14, wherein the demodulating unit includes:

a known sequence detector for detecting known data information which has been inserted into valid data and then transmitted.

17. The apparatus according to claim 14, wherein the demodulating unit includes:

a demodulator which performs at least one of a carrier recovery and timing recovery on the received mobile service data using known data which has been inserted into valid data and then transmitted.

18. The apparatus according to claim 14, wherein the demodulating unit includes:

a channel equalizer which compensates for channel distortion contained in mobile service data packet using known data which has been inserted into valid data.

19. The apparatus according to claim 14, wherein the demodulating unit includes:

a block decoder which decodes the mobile service data in units of a block.

20. The apparatus according to claim 14, wherein the data decoder extracts electronic program information from the received mobile service data packet, and stores the extracted electronic program information to a PSI/PSIP database.