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Method and apparatus for decoding mpe-fec frame in dvb-h system

A technology of digital video broadcasting and forward error correction, which is applied in broadcasting devices, broadcasting system reception, broadcasting information characteristics, etc., and can solve problems such as the DVB-H system that has not been proposed

Inactive Publication Date: 2008-10-22
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People have proposed detailed standards for the transmission technology of the DVB-H system, but have not yet proposed standards for the reception technology (such as MPE-FEC decoding) of the DVB-H system

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  • Method and apparatus for decoding mpe-fec frame in dvb-h system
  • Method and apparatus for decoding mpe-fec frame in dvb-h system

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Embodiment Construction

[0024] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, detailed descriptions of known functions and configurations incorporated herein are omitted for conciseness and clarity.

[0025] Fig. 3 is a block diagram of a receiver of a DVB-H system according to the present invention.

[0026] Referring to FIG. 3, the RF demodulator 303 receives TS packets received from a wireless network through the antenna 301, and the RF demodulator 303 down-converts OFDM symbols of the TS packets into digital signals. Fast Fourier Transform (FFT) 305 converts the digital signal into a frequency domain signal. A symbol demapper (demapper) 307 performs symbol demapping on a received signal according to a modulation method such as QPSK, 16QAM, or 64QAM. Sign de-interpolator 309 and bit de-interpolator 311 perform sign-based and bit-based de-interpolation to reconstruct the original signal. ...

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Abstract

Provided is a method and apparatus for decoding a Multi-Protocol Encapsulation Forward Error Correction (MPE-FEC) frame in a Digital Video Broadcasting-Handheld (DVB-H) system. Packet Identifier (PID) filtering is performed on a Transport Stream (TS) packet received via a wireless network to detect a TS packet, and a table ID is detected from header information of the section data to identify the section data type. If the section data is an MPE section, frame buffering is performed . If there is a remaining portion in the data region after storage of an IP datagram of the last MPE section, zero-padding is performed on the remaining portion. If the section data is an MPE-FEC section, frame buffering is performed on parity data extracted from the MPE-FEC section.

Description

technical field [0001] The present invention relates generally to methods and apparatus for receiving data in digital broadcast systems, and more particularly to decoding Multi-Protocol Encapsulated Forward Error Correction (MPE-FEC) frames in receivers for Digital Video Broadcast-Handheld (DVB-H) systems methods and devices. Background technique [0002] With the development of audio and video compression technology and communication technology, people are implementing digital broadcasting capable of providing high-quality audio and video services to users. In general, digital broadcasting refers to broadcasting services that provide users with services of high image quality and compact disc (CD)-level sound quality instead of conventional analog broadcasting. Such digital broadcasting includes terrestrial wave broadcasting and satellite broadcasting. Ground wave broadcasting refers to a digital broadcasting scheme that enables users to receive broadcasting services throu...

Claims

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Application Information

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IPC IPC(8): H04N7/12H04H1/00H04H20/86
CPCH04N21/434H04N21/64315H04N21/4385H04H40/00H04H20/86H04N7/12
Inventor 尹晸郁河智元金潣龟吴玄锡
Owner SAMSUNG ELECTRONICS CO LTD