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Synchronizing initialization data to time bursts in a mobile communications system

A technology for initializing data and initialization, applied in the field of communication systems, can solve the problem of not being able to synchronize video and audio together

Inactive Publication Date: 2010-09-22
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Without these RTCP sender reports, the receiver would not be able to properly sync the video and audio together, thus, likewise, adding a delay while the receiver waits for the RTCP sender to report

Method used

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  • Synchronizing initialization data to time bursts in a mobile communications system
  • Synchronizing initialization data to time bursts in a mobile communications system
  • Synchronizing initialization data to time bursts in a mobile communications system

Examples

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Embodiment Construction

[0025] Apart from the inventive concept, the elements shown in the figures are well known and will not be described in detail. For example, familiarity with discrete multi-tone (DMT) transmission (also known as Orthogonal Frequency Division Multiplexing (OFDM) or Coded Orthogonal Frequency Division Multiplexing (COFDM)) is assumed, so here Do not describe. Furthermore, familiarity with television broadcasting, receivers, and video encoding is assumed, so a detailed description will not be given here. For example, familiarity with currently proposed recommendations for TV standards such as NTSC (National Television Systems Committee), PAL (Phase Alternation Line), SECAM (Sequential Storage Color Television System) is assumed, in addition to the inventive concept. ) and ATSC (Advanced Television Systems Committee) (ATSC), China Digital Television System (GB) 20600-2006 and DVB-H. Also, in addition to inventive concepts, familiarity with other transmission concepts such as eigh...

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Abstract

An apparatus encodes a signal for providing an MPEG-2 encoded signal having associated initialization data such as I-frames; and transmits the signal, wherein the transmitted signal occurs in bursts for conveying the MPEG-2 encoded signal, wherein each burst has a duration and occurs in a time slicing cycle, each time slicing cycle comprising at least the burst duration and an off-time, and wherein at least one I-frame is conveyed in a burst and repeated in every following burst until a new I-frame is received for transmission.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 61 / 001,484, filed October 31, 2007. Background technique [0003] The present invention relates generally to communication systems, and more particularly to wireless systems, such as terrestrial broadcast, cellular, wireless fidelity (Wi-Fi), satellite, and the like. [0004] Today, mobile devices are everywhere—from MP3 players to personal digital assistants to cellular phones to mobile televisions (TVs). Unfortunately, mobile devices often have computational resource and / or power constraints. In this regard, the Internet Protocol (IP) Data Broadcasting over Digital Video Broadcasting-Handheld (DVB-H) system is an end-to-end broadcasting system. For example, see ETSI EN 302 304 V1.1.1 (2004-11) "Digital Video Broadcasting (DVB); Transmission System for Handheld Terminals (DVB-H)"; ETSI EN 300 468 V1.7.1 (2006-05) "Digital Video Broadcasting ( DVB); ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04H20/16
CPCH04N21/64315H04N21/4384H04N21/435H04H20/16H04H20/426H04N21/4383H04N21/235
Inventor 大卫·布莱恩·安德森大卫·安东尼·卡姆帕娜阿维纳什·斯瑞德哈
Owner THOMSON LICENSING SA