| 摘要 |
<p>PURPOSE:To increase a display speed and to utilize a floppy effectively by providing a screen start decision part, state data decision part, switches, etc., and inhibiting digested data after an end indication from being written on the floppy. CONSTITUTION:Handwriting information when written on the floppy is set in a register given with a screen number. When the writing is completed, the screen end indication enters an all-0 state and the screen start decision part GS reports that to the state data decision part MD. The circuit MD decides the state from input buffers BF1-BF5, and switches SW1 and SW2 are closed in an entry state. On the other hand, the switch 1 is opened in an erasure state on the basis of the report of the all-0 state from the circuit GS and no data is written on the floppy FL. Thus, the circuits GS and MD, switches, etc., are provided to write none of erased data after the end indication, so the floppy is utilized effectively and the display speed is increased.</p> |
