| 摘要 |
<p>PCT No. PCT/SE79/00194 Sec. 371 Date May 21, 1980 Sec. 102(e) Date Apr. 17, 1980 PCT Filed Sep. 21, 1979 PCT Pub. No. WO80/00901 PCT Pub. Date May 1, 1980.The invention relates to a method for regulating the phase position of a controlled signal in relation to the phase position of a reference signal in a telecommunication system, and an arrangement for carrying out the method. A reference signal (C2) is delayed in a delay circuit (DL1) and the delayed reference signal (C2) is delayed in a delay circuit (DL1) and the delayed reference signal (D1) is compared with a controlled signal (C1) in a first comparison circuit (FF1) which produces a first comparison signal (Q1) at a high or a low level in dependence on the phase difference between the delayed reference signal (D1) and the controlled signal (C1). The controlled signal (C1) is delayed in a delay circuit (DL2) and the delayed controlled signal (D2) is compared in a second comparison circuit (FF2) with the reference signal (C2). The second comparison circuit (FF2) produces a second comparison signal (Q2) which is at a high or a low level in dependence on the phase difference between the signal (D2) and the reference signal (C2). The outputs from the comparison circuits (FF1,FF2) are connected to a logic circuit (LC). In dependence on the signal combination received at its inputs the logic circuit produces a binary control signal which is used to correct the phase position of the controlled signal (C1) in relation to the phase position of the reference signal (C2).</p> |
