| 摘要 |
PURPOSE:To shorten an access time when a cassette is inserted by transferring a bubble to a position immediately before reading-out by a signal of the cassette at drawn. CONSTITUTION:When a signal generated when a cassette is drawn passes through 3 buffer 15 and is impressed to a write signal switching circuit 11, a register selecting signal switching circuit 12, a data bus switching circuit 13, etc., a command register selecting signal is supplied to a bubble memory controller 14 from the circuit 12. A data bus is switched by the circuit 13 so that a command by said signal is supplied, also a write signal is supplied from the circuit 11, and by executing a command by the controller 14, a magnetic bubble is transferred to a position immediately before reading-out and stops. Accordingly, an access time when the cassette is reinserted is shortened. |
