| 摘要 |
PURPOSE:To miniaturize the titled device and obtain a functionally excellent characteristics by giving a different polarity when viewed from the connecting position to the transmission characteristics of the signal route of two pieces of 2-terminal networks, each of which constitutes a unit network with at least one unit network, out of three unit networks. CONSTITUTION:A signal outputted from a signal transmitting device S to a terminal pair 15 is transmitted to a bi-directional signal device SR through a 2- terminal pair network N11 and, at the same time, also to a balancing network BN through another 2-terminal pair network N12. A signal sent from the device S to terminal pairs 40 and 50 is sent to a terminal pair 25 through networks 21 and 22 at one side, but the transmission characteristics of the networks N21 and and N22 is not transmitted to a receiver R. Moreover, a signal sent out from the device SR to the terminal pair 40 is sent to the device R through the network N21. Therefore, more than four signal devices can be coupled while their directional property is maintained. |
