| 摘要 |
The magnifier for magnifying a certain region of a frame includes a gate array (2) for transmitting 6fc signal, 3fc signal, R/W signal, compulsory synchronous signal(s signal), and servo control signal(SV) , a position selector (3) for selecting the video sinal through a switch (SW1) according to the 6fc signal, an odd/even number detector (5) for detecting the position of output signal of an A/D converter (4), memories (6,7) for storing the output signal of the detector (5) according to the R/W signal, an odd/even field synthesizer (8) for synthesizing the output signals of the memories (6,7), and a signal generator (10) for generating compulsory synchronous signal according to the output signal of the D/A converter (9). |
