| 摘要 |
<p>PURPOSE:To use effectively the space of device installation and to cope with varied information inputs quickly, by using a free space as a transmission medium and designating a data processing through the identification signal from a manual input terminal part. CONSTITUTION:The operator selects a manual input terminal part (a) suitable for a work to be processed and installs this terminal part (a) near a manual input controlling part (b). One of plural waves is selected as a carrier wave used for communication between the terminal part (a) and the controlling part (b) and is set by a frequency switching circuit of local oscillating circuits 8 and 12. After transmitting the carrier wave, the controlling part (b) receives the identification signal from a generating circuit 7 to discriminate the other-party terminal part (a). When the operator scans a tablet 1, detection information is radiated from an antenna 9 through an error controlling circuit 3, a parallel-serial converting circuit 4, a transmission modulating part 5, and a frequency converting circuit 6. Detection information is received by the controlling part (b) and is demodulated and is supplied to a processing output circuit 16, and output information to an external device 18 is read out in accordance with a conversion table.</p> |
