Patents by Inventor Hans Blackman

Hans Blackman 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).

  • Channel scan in cellular telephone system
    Patent number: 5613208
    Abstract: A method and apparatus for controlling scanning of radio channels by mobile stations in a cellular radiotelephone system, including transmitting from a base station a control signal, e.g., a battery savings order, to a group of mobile stations for informing the group of mobile stations that no pages will be issued directed to them for a predetermined period, upon receipt of which the mobile stations begin scanning during the predetermined period radio channels to identify which radio channels have superior characteristics, and storing the channels identified to have superior characteristics for later use as respective access and control channels.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: March 18, 1997
    Assignee: Ericsson Inc.
    Inventors: Hans Blackman, Sven Tryding