| 摘要 |
PURPOSE:To eliminate the clearing circuit by preventing the output of the control deciding circuit from producing the signal to other serial control signals until the new serial control signal is set to the shift register. CONSTITUTION:The serial control signals are applied successively to the shift register 9 based on the serial control signal received by the detector 1 and then converted into the parallel control signals to emerge at each of the outputs E-H. These outputs are applied to the inputs E-H of the control signal deciding circuit 10. For instance, if the serial signal supplied to the register 9 is 1011 and in case the control state of the subject is desired to be changed into another state, no signal is produced at the outputs d-f of the circuit 10 until the new signal e.g. 1010 is set to the register 9. As a result, the clearing circuit can be eliminated in the register 9. And if either one of the outputs d-f becomes logic 1, the output signal can be held at the outputs g and h of the holding circuit 11 although the outputs d-f all become 0. Based on the state of the outputs g and h each, the working is controlled for the loads L1 and L2 of the circuit 13 to be controlled. |
