| 摘要 |
PURPOSE:To facilitate an easy connection among various types of signal receivers, by providing a converting part at the input side of a scanning circuit. CONSTITUTION:For a PB signal receiver 11, for example the output signal connected to a +5V power supply and an earth is provided in addition to the output signals a0-a6 of a PB signal frequency analyzer PBREC. For an MF signal receiver 12, three pieces of output signals connected to an earth for example are provided in addition to the output signals A0-A6 of an MF signal frequency analyzer MFREC. A code converting part 13 is provided with an address register AR which holds an input signal and then latches it as the address of a converting memory MM, a memory MM and a register R which delivers the contents of an address designated by the register AR to a scanning circuit SCN. The position of the highest bit is set at 1 and 0 when the receiver 11 is connected to a cable C1 and the receiver 12 is connected to a cable C2 respectively. Then the using regions of the memory MM are made different from each other and then converted into the same code. |
