A Fully Programmable Systolic Pipelined Digital Video Encoder For NTSC/PAL/PALplus Compatibility On A 4:3 Screen

Sung-Woo Kwon, Han-Jun Choi, Seung-Ho Oh, Moon-Key Lee
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Abstract

A proposed encoder supports NTSC and PAL systems. I n addition, it also permits PALplus standard mode compatible to16.9 wide screen on a 4:3 screen. I n order for this to be realized, vertical and horizontal synchronous timings are fully programmable and the encoder is designed in systolic pipelined architecture with double pixel clock to increase an internal processing speed Also, we have mainly concentrated on cutting down area of the encoder as much as possible. Submodules like letter-box converter, color converter matrix, low pass jilter, interpolator, and color modulator have area saving architectures. The encoder can accept RGB and YCbCr as the input pixel signal type in the speed of 10-1SMpps. Outputs are a Y/C (S-video) signal and a composite signal .We have modeled the encoder in Yerilog-HDL and verified its operation in each mode with C-language based program.
一个完全可编程的收缩流水线数字视频编码器的NTSC/PAL/PALplus兼容4:3屏幕
提出的编码器支持NTSC和PAL系统。此外,它还允许PALplus标准模式兼容16.9宽屏4:3屏幕。为了实现这一点,垂直和水平同步时序是完全可编程的,编码器采用双像素时钟的收缩流水线架构,以提高内部处理速度,并且我们主要集中在尽可能减少编码器的面积。子模块如信箱转换器,颜色转换器矩阵,低通抖动,插值器和颜色调制器具有节省面积的架构。该编码器可以接受RGB和YCbCr作为输入像素信号类型,速度为10-1SMpps。输出是一个Y/C (S-video)信号和一个复合信号。我们用Yerilog-HDL对编码器进行了建模,并用基于C语言的程序验证了其在每种模式下的运行。
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