复合电视信号 meaning in Chinese
video-blanking-sync
Examples
- The function of video frequency gathering board is to reveal the compound television signal from the computer to carry on a / d transforms , rgb separation processing and so on , output 24bits rgb signals and the synchronized signals . these functions were finished by video frequency decoding chip saa7111 made by philip corporation
视频采集板的功能是利用philip公司的视频解码芯片saa7111 ,对计算机显卡输出的复合电视信号进行a / d转换, rgb分离等处理,输出24位rgb信号和同步信号。 - The subject has mainly finished designing and debugging software and hardware of a / d decode module , fpga video processing module , video data frame deposit module , base clock produce module , d / a encode module , i2c bus control module , etc . a / d decode module gathers analog tv signals and realize video decode ; fpga video processing module deals with the data after decoding and produces systematic logic control signal ; video data frame deposit module offers the buffering area to a large n umber of high - speed video data ; base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module d / a decode module convert digital video data into compound tv signal which can be shown in tv directly ; i2c bus control module is used to initialize the chip of system by simulating i * c bus timing
本课题主要完成了a d解码模块、 fpga视频处理模块、视频数据帧存模块、基准时钟产生模块、 d a编码模块、 i ~ 2c总线控制模块等部分软、硬件设计及调试。其中a d解码模块采集模拟电视信号实现视频解码； fpga视频处理模块对解码后的数据进行去噪处理的同时还负责系统的逻辑控制；视频数据帧存模块为大量高速的视频数据提供缓冲区；基准时钟产生模块通过输入基准视频信号为系统提供精确的相关同步信号； d a编码模块在视频处理模块的控制下把数字视频数据转换成复合电视信号供显示用： i ~ 2c总线控制模块模拟i ~ 2c总线时序实现对系统中编、解码芯片的初始化。