Patents by Inventor Pertti Huttunen

Pertti Huttunen 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 apparatus for detecting a monitoring signal at a base station in a radio telephone system
    Patent number: 5369785
    Abstract: A method and an apparatus for identification of a monitoring signal at a base station in a radio telephone system, in which a number of monitoring signals having different frequencies are used for monitoring the quality of radio links between the base station and mobile stations. The apparatus includes a multipath-type bandpass filter having an adjustable bandwidth for filtering the monitoring signal, the filter being arranged to be adapted to a desired monitoring signal frequency and the bandwidth of the filter being arranged to be narrowed in a steplike manner during the filtration period. An indicator is provided for identifying the monitoring signal on the basis of the level of the bandpass-filtered signal.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: November 29, 1994
    Assignee: Telenokia Oy
    Inventors: Jukka Korhonen, Pertti Huttunen