Patents by Inventor Karl A. I. Andersson

Karl A. I. Andersson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of and an arrangement in a telecommunication system for regulating the phase position of a controlled signal in relation to a reference signal
    Patent number: 4380083
    Abstract: 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).
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: April 12, 1983
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Karl A. I. Andersson, Sture G. Roos