| 摘要 |
PURPOSE:To attain a power line carrier receiver decreased in the effect of the delay produced at a BPF, by extracting each frequency of an FSK signal at the BPF, detecting an extracted signal and comparing them with each other. CONSTITUTION:Signals having respective frequencies fA, fB are transmitted from a transmitter A to data ''1'', ''0''. The frequency fA, fB components are extracted from the received sgnal at BPFs 6, 6' at a receiver B, and the extracted signal is detected at AM detectors 7, 7'. The detected signal is compared mutually at a level comparator 8, and the output of the comparator 8 is discriminated at a data discriminator 12. |
