Half Duplex

MPEG-4

MPEG-4 has much difference with MPEG-1 or MPEG-2. As a compression algorithm, MPEG-4 is also a international standard that meets demands of integration and comp

PAL

PAL (Phase Alteration Line) is I adopted in most Europe countries, Australia and some middle-south America countries for commercial TV broadcast. PAL format spe

NTSC

NTSC / NTSCNTSC (National Television Systems Committee NTSC) is a kind of video standard. NTSC is adopted in America, Canada, Japan, and some middle-south Ameri

MPEG Image

MPEG image encoding includes three factors: I frame, P frame, B frame. During MPEG encoding process, some images are compressed to I frame, some compressed to P

Fps (frame per second)

Fps (frame per second) detection is applied for storing and showing signal quantity of dynamic video. Fps is also a film word or digital video word. As we know,

Div X

Div X refers to digital video CODEC (encoder & decoder) which is based on MPEG-4 skill. Div X format can compress big file into so small file as to can be trans

Content Scrambling System

Content scrambling system is a digital encryption proposal for DVD video. DVD players which are permitted only by CSS can decode video data. Content scrambling

AVI

AVI (audio video interleave) is the video format of Windows3.1. Its features include good compatibility, easy adjustment, super image, huge bulk.

Automatic Gain Control (AGC)

Automatic gain control (AGC) is a kind of method for ensuring out-video meet demand of TV transmission provision. Automatic gain control (AGC) controls gain by

Moving Object Detection

The whole image is divided into multiple areas. Users can choose any one of these areas; even can set sensitivity of chosen area with 1-20 grades. Thus when obj