US 7,680,145 B2 · Retransmission apparatus using packet method for DMB service

Abstract

A retransmission apparatus is provided that uses a packet method for a DMB service and includes: a DMB receiver for receiving DMB data from a medium; a DMB transmission mode release unit that outputs an MPEG-2 TS by releasing a DMB transmission mode in the DMB data received from the DMB receiver; a channel information extractor that extracts channel information contained in a Fast Information Channel (FIC) of the DMB data in the DMB transmission mode release process of the DMB transmission mode release unit; a data information extractor that receives the MPEG-2 TS from the DMB transmission mode release unit and extracts data information indicating a location of an elementary stream from the received MPEG-2 TS; a channel information database (DB) that stores the channel information extracted by the channel information extractor and the data information extracted by the data information extractor as channel data; a first IP streamer that IP-streams the MPEG-2 TS output from the data information extractor; and a second IP streamer that IP-streams the channel data stored in the channel information DB.

Claims8

Dependent claims

A retransmission apparatus using a packet method for a Digital Multimedia Broadcasting (DMB) service, the retransmission apparatus comprising:

a DMB receiver that receives a DMB data over a medium and outputs the received DMB data;
a DMB transmission mode release unit that receives the output DMB data from the DMB receiver, outputs a Motion Picture Expert Group-2 Transport Stream (MPEG-2 TS) by releasing a DMB transmission mode in the DMB data received from the DMB receiver;
a channel information extractor that extracts and outputs channel information contained in a Fast Information Channel (FIC) of the DMB data in the DMB transmission mode release process of the DMB transmission mode release unit;
a data information extractor that receives the MPEG-2 TS output by the DMB transmission mode release unit and extracts and outputs data information indicating a location of an elementary stream within the received MPEG-2 TS;
a channel information database (DB) that stores the channel information extracted and output by the channel information extractor and the data information extracted and output by the data information extractor as channel data;
a first IP streamer that IP-streams the MPEG-2 TS output by the data information extractor;
and
a second IP streamer that retrieves therefrom and IP-streams the channel data stored in the channel information DB.

5 more elements

A receiving apparatus for receiving a retransmitted packet type data for Digital Multimedia Broadcasting (DMB) service by receiving an Internet Protocol (IP) stream from a retransmission apparatus, said receiving apparatus comprising:

an IP receiver that receives and outputs the IP stream from the retransmission apparatus;
a channel management module that receives and outputs the channel data output by the IP receiver and stores and manages the received channel data;
a Motion Picture Expert Group-2 Transport Stream (MPEG-2 TS) demultiplexer that receives and outputs the MPEG-2 TS by releasing a DMB transmission mode in a DMB data received from the IP receiver and demultiplexes the received MPEG-2 TS to video information and audio information according to the channel data output by the channel management module;
a video processing unit for processing the video information demultiplexed and output by the MPEG-2 TS demultiplexer;
and
an audio processing unit that processes the audio information demultiplexed and output by the MPEG-2 TS demultiplexer,
wherein the channel data comprises a channel information contained in a Fast Information Channel (FIC) of the DMB data ad a data information indicating a location of an elementary stream within the MPEG-2 TS.

4 more elements

Dependencies are inferred from the claim text.

Retransmission apparatus using packet method for DMB service

Life of this patent

Retransmission apparatus using packet method for DMB service

Life of this patent

Abstract

Claims8