| 摘要 |
PURPOSE:To record the control programs written in a program control type execution sentence and a direct execution sentence to the same spiral or concentric track synchronously with a video signal and a horizontal synchronizing signal by synthesizing in time series those control programs with a single sound signal. CONSTITUTION:The information signal containing a video signal, sound signal, address signal and a control program signal is delivered from an output terminal, then converted into a signal having a frequency to be modulated. Then the pits are produced intermittently and recorded to a spiral track T of a disk 41 in accordance with the contents of the information signal. The period of one rotation of the disk is equal to a 4-field period, for example, of a video signal. Then the vertical blanking periods are recorded to tracks t1, t2- within the ranges shown by (a)-(d) respectively. In such a way, the control program is recorded in time series having the perfect 1:1 correspondence between video and sound signals. Therefore, it is not needed for a device like a personal computer, etc. having a deciding function and to be connected to outside to store all of the control program. Thus the working is made possible for the new recording, partial erasion, addition, etc. |
