| 摘要 |
PURPOSE:To shorten remarkably a scanning time, by taking partial charge of a scan by use of plural operation processing device, and detecting which key is inputted. CONSTITUTION:When an electric power source is turned on, a scan of a matrix 9 is executed by a scan signal generating part 14 of an operation processing device 8. At the same time, a signal is sent from a request signal generating part 15 of the operation processing device 8 to a request signal receiving part 16 of an operation processing device 10. By this signal, a scan of a matrix 11 is executed through a scan signal generating part 17. In this way, the scan of the matrixes 9 and 11 is executed simultaneously. As for a signal inputted to an interrupting signal receiving part 20, an interruption is applied to a signal from the matrix 9, which is transferred to a key input discriminating part 21. A data inputted to the discriminating part 21 is transferred to a computer body 13. |
