| 摘要 |
PURPOSE:To provide a data output device for a Braillewriter capable of outputting data in the process of depressing input keys, by providing a line switch operated in conjunction with every one of 6 input keys. CONSTITUTION:When one of input keys K1-K6 is depressed, an operating lever 15 is depressed together with a lever 11, whereby the line switch SL is operated. In the process of a series of key operations in which the input keys K2, K4 are depressed, held and returned, a key switch S2 provides a signal P1 which is at a 'H' level from time point t1 to time point t2, while a key switch S4 provides a signal P2 which is at a 'H' level from time point t3 to time point t4. The line switch SL is operated to input a signal P10 which is turned ON at time point t5 during depression of the keys K2, K4, is turned OFF at time point t6 during returning of the key K4 and is maintained at a 'H' level from time point t5 to time point t6. Outputs from an AND circuit are signals P11, P12 which are similar to the signal P10. Pulses P13, P14 are generated by a pulse-generating circuit at time point t5 during the depression of the keys K2, K4. |
