| 摘要 |
PURPOSE:To obtain a signal receiver resistant to noise by making received signals invalid when next time component signal is not extracted within a specified time from the first time component signal. CONSTITUTION:In the case of continuous signals, a receiving detection signal S functioning as output of an AND circuit 6, becomes '1', and works as a set signal of JKFF 10 reset before starting receiving, and the JKFF 10 makes JKFF 10 set state synchronously with fall of a clock signal CLK. By setting of the JKFF 10, a signal detecting circuit becomes the state of receiving signals, and outputs a receiving state signal Q. On the other hand, if it is single signal, the receiving detection signal S remains '0' and does not become Z signal of JKFF 10. Accordingly, JKFF 10 remains in reset state and the receiving state signals Q is not outputted. That is, when the signal received by a receiving circuit 1 is single signal, it is regarded as an invalid signal, and the signal detecting circuit does not operate. |
