ENCODED SIGNAL DEMULTIPLEXING DEVICE, ENCODED SIGNAL MULTIPLEXING DEVICE, AND ENCODED SIGNAL DEMULTIPLEXING/MULTIPLEXING SYSTEM

WIPO Patent Application WO/2005/096636

A1

There is provided a device including: a demultiplexing unit (1100) for dividing an encoded stream into a basic encoded signal B having smaller encoding amount than the encoded stream and a plurality of extension encoded signals E(m) for restoring an image by using the basic encoded signal B, according to a coefficient position; and a multiplexing unit (1600) for combining and multiplexing the basic encoded signal B with the plurality of extension encoded signals E(m) in an arbitrary way and generating a plurality of transmission encoded signals St(l). By generating and outputting an independent separated stream St(l), it is possible to perform transmission path selection according to the network state and realize a scalable transmission of video.

HANAMURA TSUYOSHI (JP)
NAGAYOSHI ISAO (JP)
WAKUI MICHIKO (JP)
TOMINAGA HIDEYOSHI (JP)

PCT/JP2005/006171

October 13, 2005

March 30, 2005

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MEDIA GLUE CORP (JP)
HANAMURA TSUYOSHI (JP)
NAGAYOSHI ISAO (JP)
WAKUI MICHIKO (JP)
TOMINAGA HIDEYOSHI (JP)

H04N19/60; H03M7/30; H04N7/167; H04N7/173; H04N7/24; H04N19/136; H04N19/147; H04N19/25; H04N19/30; H04N19/40; H04N19/46; H04N19/70; H04N19/91; H04N19/93; H04N21/2662; (IPC1-7): H04N7/30; H04N7/167; H04N7/173

JPH05336505A	1993-12-17
JPH0344187A	1991-02-26
JP2000253375A	2000-09-14

WAKUI . ET AL: "A Study on a Scalable Video Coding Scheme with Independent Layers by Transcoding.", IPSJ SIG TECHNICAL REPORT., vol. 2004, no. 25, 4 March 2004 (2004-03-04), pages 25 - 30, XP002990169

Iat, World Patent Law Firm (Shinjuku Square Tower 22-1, Nishi-shinjuku 6-chom, Shinjuku-ku Tokyo, JP)

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