Patents by Inventor Jukka T. Ranta

Jukka T. Ranta 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).

  • Publication number: 20010034254
    Abstract: A method of operating a mobile station in a WCDMA system. The mobile station has a rake receiver (90) having a plurality of demodulator fingers (71,72,73). One of the demodulator fingers monitors a neighbouring cell and other demodulator fingers monitor an assigned cell. When the mobile station is in an idle mode, if it is stationary, activity of the demodulator is reduced by switching off the demodulator finger which monitors the neighbouring cell.
    Type: Application
    Filed: March 22, 2001
    Publication date: October 25, 2001
    Inventor: Jukka T. Ranta
  • Patent number: 5175758
    Abstract: A telephone system with which a connection between two subscribers can be established, at least one of them being a mobile subscriber. The system includes a paging network composed of one or several extensive paging ranges, each of them having a paging transmitter (H1, H2) of its own, a small cellular network with an exchange and a plurality of base stations (T), and mobile telephones with which a pager has been integrated. When calling a mobile telephone, the transmitter of the paging range in which the telephone is known or assumed to be transmits a paging message to the telephone, whereby, when the telephone is in the neighborhood of the base station, the exchange of the cellular network establishes immediately a connection between the subscribers. No paging calls are lost because they are stored in the exchange of the cellular network, and on an appropriate occasion the pager of the telephone and the exchange compare the paging messages stored in the memories.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: December 29, 1992
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Lauri Levanto, Jukka T. Ranta