| 1. | Analog scan converter
模拟扫描变换器 |
| 2. | The scan converter allows us to record a much higher quality image than what we would get from pointing a camera at the subject ' s monitor
扫描变换器使我们能记录的图像质量比从安放在显示器前的摄像机高很多。 |
| 3. | For studies using software , a scan converter provides a direct feed from the subject ' s computer screen to tape recorders and monitors on the observer side
对于研究使用软件，扫描变换器把项目电脑的屏幕直接输入到摄录存储器和观察者这边的监视器上。 |
| 4. | The scanning converter comprises five parts : video signal decoding , data reconstruction , progressive video signal encoding , control signal producing and communication
扫描转换器包含了电视信号的解码、解码后数据的重构、逐行信号编码、控制信号的产生以及通信五部分。 |
| 5. | This dissertation first discusses the two - dimension interpolation algorithm and coordinate rotation digital computer algorithm involved in the process of designing system . then the paper particularly probes into the research and development of b - mode digital scan converter , m - mode digital scan converter and graphic circuitry in the digital scan conversion system
本文首先对系统设计过程中引入的二维线性插值算法和坐标旋转数字计算算法进行了讨论，然后着重论述了数字扫描变换系统中的b型数字扫描变换器、 m型数字扫描变换器和图形界面电路的原理、设计与实现。 |
| 6. | Current tv system has two types : one is the 60hz based system , the other is the 50hz . the phenomenon of large area flicker is not obvious in the 60hz based system , so the scanning converter uses the way of converting the 60hz and 50hz based interlaced scanning signal to 60hz based progressive scanning signal . employing this way the converter can not only reduce the large area flicker and interline twitter , but erase the raster and display finer and smoother pictures
现行的电视制式有60hz和50hz系统两种，在60hz系统里，大面积闪烁不是很明显，因而本扫描转换器采用将60hz和50hz的隔行扫描信号统一处理成60hz的逐行扫描信号的方法，这样可一方面使大面积闪烁和行间闪烁都比较轻，又可消除行结构，重现细腻图像。 |
| 7. | In order to solve the phenomenon of splitting picture which is caused by dismatching of writing and reading speed during converting 50hz based interlaced signal to 60hz based progressive signal , the two - frame memory which can effectively prevent it emerging is used . the scanning converter supplies two communicative ways : rs - 422 and rs - 232
为了解决50hz隔行信号到60hz逐行信号转换中由于存储器写入、读出速度不匹配而产生的裂像现象，在本设计中使用了双帧存储器，有效的防止了此现象的产生。 |
