| 摘要 |
PURPOSE:To quickly and continuously change the auxiliary scanning speed and to improve the capacity of the titled controller, by constituting an auxiliary scanning speed successively setting circuit with an ROM and switching the reference pulse at every occasion when an original is read and when an original is jumped. CONSTITUTION:Encoded picture signals are stored in a buffer memory 1 and the contents are read out and sent from a transmitter. At the same time, the contents are sent to an original position deciding circuit 3 after they are converted into a prescribed bit. At the circuit 3 a speed change set signal is set so as to increase or decrease the speed in accordance with the capacity of the memory 1, and the signal is added to a reference pulse switching circuit 4 of an auxiliary scanning speed successively setting circuit. Said setting circuit is composed of the circuit 4, a memory 5 which is exclusively used for setting reading and for reading out, and an FF6, and sets speed change by an auxiliary scanning condition set signal and a speed change signal from the circuit 3. The auxiliary scanning speed is quickly and continuously changed by switching the reference pulse at every occasion when an original is read and when an original is jumped, and the changed speed is added to a motor driving circuit 9. Thus the capacity of the controller is improved. |
