| 摘要 |
PURPOSE:To realize a transmitting circuit which scarcely generates a noise and scarcely has an unstable factor such as a jitter, etc. by using only one kind of opening and closing signal, opening and closing simultaneously opening and closing means which is connected to each input terminal, and thereafter, providing each different delay time, and forming a multiple signal by synthesizing the whole. CONSTITUTION:In the rear of opening and closing means 6, 7 and 8, delaying means 10, 11 and 12 having a delay time of T, 2T and 3T are connected, respectively, coupled and added by a synthesizing means 13 together with an output of an opening and closing means 5, and a multiplexing signal output is obtained. When an opening and closing signal P is impressed, an input A reaches a synthesizing means 13 immediately since it has no time delay, and appears in an output terminal, but an input B is delayed by T, reaches the synthesizing means and appears in the output, and in the same way, it is known that an input C and an input D are delayed by 2T and 3T, respectively, therefore, the output signal is arranged in order of A, B, C and D, and multiplexed by a time division. A repeated period of the opening and closing signal P can be designed freely if it is longer than the product of the time delay T and the number of multiplexed input signals, and the circuit is simple and scarcely generates a noise. |
