| 摘要 |
PURPOSE:To transmit a highly minute picture on a conventional television signal transmission line, by splitting a screen into some parts at the transmission side, transmitting them with multiplexing, writing the multiplex signal on a video memory as originally, and displaying it on a highly minute television monitor. CONSTITUTION:A light entering from a lens group 1 is split into four at a transmitter 8 and the image is formed on four faces of pickup sections 4-7 via an image forming lens group 3. An identification signal identifying the part of a screen signal is added to a suitable location of a blanking period of a video signal to video output signals 4S-7S from a camera section 10 having the four faces of a image pickup section, and the result is used as an input signal to a frame or field multiplex section 11. The input signal for four faces of screen's share is switched sequentially at a part of a vertical synchronizing signal in the multiplexing section 11 to form a consecutive TV signal and transmitted to a TV signal transmission line 12. A receiver 9 writes a received multiplex signal from the transmission line 12 into an area corresponding to each of a video memory 14 while discriminating each position according to the identification signal. The written signal is read out as a signal having four times the band of conventional TV signal as a highly minute video signal and displayed on the highly minute TV monitor. |
