Patents by Inventor Anders Holmring

Anders Holmring 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 minimizing undersirable RF emissions within a TDMA system
    Patent number: 5809017
    Abstract: To minimize the amplitude and spectrum of side bands, beats and harmonics created by changing a transmitter power level between bursts in a GSM TDMA cellular radio communications system, the present invention does not comply with the GSM recommendations by avoiding ramping down to zero power level between time slots. Rather, the transmitter power is ramped between the power value of a previous burst and that of a subsequent burst. In this way, the magnitude or slope of the ramp is minimized and the full time between bursts is available to make power adjustments. A number of embodiments are disclosed.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: September 15, 1998
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: David Anthony Smith, Mats Hakan Dahlin, Hans Jonas Peter Rojestal, Lennart Nils Adolf Lofgren, Erik Mikael Sundberg, Anders Holmring