Unlock instant, AI-driven research and patent intelligence for your innovation.

Video coding/decoding device and method for communication terminal

A technology of video encoding and decoding devices, which is applied in the field of multimedia communication terminals, and can solve problems such as users feel uncomfortable, difficult to synchronize audio and video information, and affect picture quality

Inactive Publication Date: 2004-02-25
LG ELECTRONICS INC
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these delay levels comply with the H.321 and 3G-324 standard recommendations, the jerky movement in the animation caused by the delay makes the user feel uncomfortable and seriously affects the picture quality
Furthermore, since the difference between video and audio delays is large and variable, it is difficult to precisely synchronize audio and video information
[0006] Moreover, in the prior art codec, since the audio information needs to be stored in order to be synchronized with the more delayed video information, additional memory resources for storing the audio information are required, which is unavoidable in design of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video coding/decoding device and method for communication terminal
  • Video coding/decoding device and method for communication terminal
  • Video coding/decoding device and method for communication terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In the video encoding / decoding device of the invention, video data is processed in units of time slices instead of frames, so as to reduce the processing time of video data. FIG. 1 is a block diagram showing a video encoding / decoding apparatus according to a preferred embodiment of the present invention. As shown in Figure 1, the video encoding / decoding apparatus includes: a video encoding unit 10 for encoding video input from a camera (not shown), a multiplexer / demultiplexer 50 for multiplexing Multiplexing the video data processed in the video encoding unit 10, and transmitting the video data (for example, in the format of a bit stream) through the physical channel, and the video decoding unit 30, which is used to decode the video data received through the physical channel, wherein the video data is after it has been de-multiplexed by the multiplexer / de-multiplexer 50.

[0033] The video encoding unit 10 includes a plurality of first slice memories 11a and 11b connec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A video encoding / decoding apparatus includes an encoding unit which processes video data to be transmitted in unit of slice, a multiplexer / demultiplexer which multiplexes the video data from the encoding unit and de-multiplexes video data received through a communication channel, a decoding unit which processes video data from the multiplexer / demultiplexer in unit of slice. The video information delay is reduced less than or equal to the audio information delay such that there is no need for additional memory to delay the audio information so as to synchronize with the video information.

Description

field of invention [0001] The present invention relates to a multimedia communication terminal, in particular to an improved video encoding / decoding device and method for a multimedia communication terminal. technical background [0002] Recently, the development and commercialization of multimedia handsets for IMT-2000 services have increased, for simultaneous transmission of audio and video information over wired or wireless channels. [0003] In a multiplex transmission system, audio and video information should be encoded to maintain the balance of audio and video information. However, compared to audio information, video information occupies a significant portion of the entire data set being transmitted. Typically, audio and video information are encoded and transmitted separately over separate channels. Furthermore, there is a method to use one transmission channel for audio and video information. In this case, the codec algorithm becomes complicated for calculating...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24G06T9/00H04J3/00H04N7/14H04N7/52H04N19/00H04N19/124H04N19/15H04N19/176H04N19/196H04N19/423H04N19/70H04N21/234H04N21/2343H04N21/236H04N21/2368H04N21/2662H04N21/434H04N21/44
CPCH04N7/26186H04N7/26079H04N19/00278H04N7/26265H04N19/00272H04N19/00193H04N7/26244H04N19/00484H04N19/0009H04N21/2368H04N21/4341H04N7/26707H04N19/176H04N19/124H04N19/152H04N19/174H04N19/423H04N21/23406H04N21/234354H04N21/23611H04N21/2662H04N7/24H04N21/23
Inventor 徐裕锡
Owner LG ELECTRONICS INC