APPARATUS AND METHOD FOR TRANSMITTING PACKET AND APPARATUS AND METHOD FOR RECEIVING PACKET IN MMT SYSTEM

WIPO Patent Application WO/2013/009131

A2

The present invention discloses an apparatus and a method for transmitting a packet and an apparatus and a method for receiving a packet, based on a timing model of an MPEG media transport (MMT) system, which is integrated by considering the advantages of a timing model in an MPEG-2 system and an RTP timing model. The apparatus for transmitting the packet transmits the packet from the MMT system, and comprises: a video stream that is encoded based on an input picture; and an MMT packetizing portion for generating the MMT packet by packetizing an audio stream that corresponds to the video stream, wherein the MMT packetizing portion generates the MMT packet by including synchronization information, which is generated based on a system time clock (STC) that is a master program clock for a video and audio encoder, and an MMT buffering delay. As a result, synchronization of various media sources, measurement of a packet arrival jitter, as well as STC clock locking of the apparatus for transmitting and the apparatus for receiving the MMT can be achieved.

LEE JIN YOUNG (KR)
SEO KWANG DEOK (KR)
YUN KUG JIN (KR)
CHEONG WON SIK (KR)
HUR NAM HO (KR)

PCT/KR2012/005584

January 17, 2013

July 13, 2012

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KOREA ELECTRONICS TELECOMM (KR)
LEE JIN YOUNG (KR)
SEO KWANG DEOK (KR)
YUN KUG JIN (KR)
CHEONG WON SIK (KR)
HUR NAM HO (KR)

H04L7/00; H04N7/24

WO2006003105A1

2006-01-12

JPH08205146A	1996-08-09
US20090310670A1	2009-12-17
KR20070008069A	2007-01-17

YANG, Moon Ock (KR)
양문옥 (KR)

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