Apparatus and method for providing digital broadcasting service based on multiple broadcasting sites and frequency bands

• US 20060056524A1
• Filed: 10/21/2003
• Published: 03/16/2006
• Est. Priority Date: 12/26/2002
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Lee, Hyun, Ahn, Chieteuk, Lee, Soo-In, Cho, Sammo
• Application Number:
  US10/540,892
• Publication Number:
  US 20060056524A1
• Time in Patent Office: Days
• US Class Current: 375/260
• CPC Class Codes: H04N 21/2365 Multiplexing of several video streams
• CPC Class Codes: H04N 21/26216 involving the channel capacity, e.g. network bandwidth admission control, resource allocation in open networks H04L12/5692; flow control in packet networks H04L47/10; establishing a schedule or organising the servicing of application requests taking into account QoS H04L67/61
• CPC Class Codes: H04N 21/4347 Demultiplexing of several video streams
• CPC Class Codes: H04N 21/4383 Accessing a communication channel
• 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

Abstract

An apparatus for transmitting data in a digital broadcasting system is disclosed. The apparatus includes: a source encoding unit for encoding data to be transmitted and generating source-coded data; a capacity managing unit for dividing the source-coded data into divided data for a plurality of channels in case that an available data capacity for transmitting the source-coded data does not exist in one channel but sum of available data capacities of the multiple channels can accommodate the source-coded data, and adding header information to the divided data; a channel encoding unit for encoding the divided data according to channel environment and generating channel-coded data; and a transmitting unit for multiplexing, modulating and transmitting the channel-coded data through multiple frequency bands and multiple broadcasting sites.

Claims

1. An apparatus for transmitting data in a digital broadcasting system, comprising:

a source encoding means for encoding data to be transmitted and generating source-coded data;

a capacity managing means for dividing the source-coded data into divided data for a plurality of channels in case that an available data capacity for transmitting the source-coded data does not exist in one channel but sum of available data capacities of several channels can accommodate the source-coded data, and adding header information to the divided data;

a channel encoding means for encoding the divided data according to channel environment and generating channel-coded data; and

a transmitting means for multiplexing, modulating and transmitting the channel-coded data through multiple frequency bands and multiple broadcasting sites.

2. The apparatus as recited in claim 1, wherein the capacity managing means stores information of available capacity and unavailable capacity for each frequency band, divides the source-coded data in case that an available data capacity for transmitting the source-coded data does not exist in one channel but sum of the available data capacities of multiple channels can accommodate the source-coded data, and adds the header information to the divided data in a data packet so as to reconstruct the data in the receiving apparatus.

3. An apparatus for receiving data in a digital broadcasting system, comprising:

a tuning means for receiving transmitted data through multiple frequency bands and multiple broadcasting sites;

a demodulating means for demodulating the received data and generating demodulated data;

a de-multiplexing means for de-multiplexing the demodulated data and generating de-multiplexed data;

a decoding means for decoding the de-multiplexed data and generating decoded data; and

a data combining means for combining the decoded data.

4. The apparatus as recited in claim 3, wherein the combining means combines the data based on header information that is included in the decoded data.

5. A method for transmitting data in a digital broadcasting system, comprising the steps of:

(a) encoding image data and audio data to be transmitted and generating source-coded data ;

(b) at a capacity managing means, dividing the source-coded data into divided data for a plurality of channels in case that an available data capacity for transmitting the source-coded data does not exist in one channel but sum of available data capacities of multiple channels can accommodate the source-coded data, and adding header information to the divided data;

(c) channel encoding the divided data according to channel environment and generating channel-coded data; and

(d) multiplexing, modulating and transmitting the channel-coded data through multiple frequency bands and multiple broadcasting sites.

6. The method as recited in claim 5, wherein the capacity managing means stores information of available capacity and unavailable capacity for each frequency bands, divides the source-coded data in case that an available data capacity for transmitting the source-coded data does not exist in one channel but sum of available data capacities of the multiple channels can accommodate the source-coded data, and adds the header information in a data packet so as to reconstruct the data in the receiving apparatus.

7. A method for receiving data in a digital broadcasting system, comprising the steps of:

(a) receiving transmitted data through multiple frequency bands and multiple broadcasting sites;

(b) demodulating the received data for each frequency band and generating demodulated data;

(c) de-multiplexing the demodulated data for each frequency bands and generating de-multiplexed data;

(d) decoding the de-multiplexed data for each frequency bands and generating decoded data; and

(e) at combining means, combining the decoded data.

8. The method as recited in claim 7, wherein the combining means combines the data based on header information that is included in the decoded data.