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Apparatus for transmitting video signal and method thereof

A video signal and signal technology, applied in the field of video transmission, can solve problems such as difficulties

Inactive Publication Date: 2006-03-01
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, scalability remains a challenge in implementing systems that support basic transport of video over the Internet.

Method used

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  • Apparatus for transmitting video signal and method thereof
  • Apparatus for transmitting video signal and method thereof
  • Apparatus for transmitting video signal and method thereof

Examples

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Embodiment Construction

[0016] Preferred embodiments of the present invention will now be described in detail along with examples shown in the accompanying drawings. , as far as possible, the same reference numerals in the drawings indicate the same or similar components.

[0017] First, refer to figure 1 and figure 2 To explain the video transmission device according to the first embodiment of the present invention as follows.

[0018] figure 1 is a block diagram of a video transmission device according to a first embodiment of the present invention, and figure 2 is a detailed block diagram of the base layer encoder as well as the enhancement layer encoder in the case of SNR (Signal to Noise Ratio) scalability.

[0019] refer to figure 1 , the video signals to be transmitted are respectively input to the base layer encoding unit 100A and the enhancement layer encoding unit 100B. In this way, the base layer encoding unit 100A and the enhancement layer encoding unit 100B will respectively outp...

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Abstract

The present invention relates to transmitting a coded video signal, wherein the video signal is preferably an MPEG-4 type video signal including a base layer and an enhancement layer. The present invention comprises a first coding unit for coding the video signal into a first stream, a second coding unit for coding the video signal into a second stream, a layer-combining multiplexing unit for combining the first and second streams into one stream; and a real-time transport protocol (RTP) packetization unit for packetizing the combined stream, wherein the packetized combined stream has an RTP header.

Description

[0001] related application [0002] This application claims priority to Korean Patent Application No. 10-2004-0066270 filed on August 23, 2004. This application is hereby incorporated by reference in its entirety. field of invention [0003] The present invention relates to video transmission, in particular to a device and method for transmitting video signals. Although the invention is suitable for a wide range of applications, it is particularly suitable for the transmission of MPEG-4 type video comprising a base layer and an enhancement layer. Background technique [0004] Generally speaking, in the MPEG-4 standard, an important function is provided, that is, scalability. Scalable coding, also known as "layerable coding", allows coded representations to be produced in a way that enables scalable decoding operations. Scalability is a property of a bitstream that allows decoding of an appropriate subset of data resulting in the production of a complete picture with a res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04L29/06H04N19/30H03M7/30H04N19/00
CPCH04N21/6437H04N21/440227H04N21/64792H04N21/234327H04N21/234318H04N7/12
Inventor 徐光德
Owner LG ELECTRONICS INC
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