Patents by Inventor Richard Midgett

Richard Midgett 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).

  • Mobile communications
    Patent number: 7089001
    Abstract: A method of automatically establishing a roaming service for a mobile telephone, that includes a pre-programmed SIM card, performs a Location Update in the following order. 1. Registered Public Land Mobile Network (“RPLMN”), i.e. the last registered network as stored in the SIM directory EFLOCI (EF6F7E). 2. Home PLMN (“HPLMN”) 3. PLMNs contained in a “PLMN Selector” data field based on the “Operator List”. 4. User-defined preferred PLMN 5. Other PLMNs with received signal level above a predetermined strength in random order; and 6. All other PLMNs in order of descending signal strength.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: August 8, 2006
    Assignee: Hong Kong CSL Limited
    Inventors: Edward Yan Tao Leung, Richard Midgett, Kwok Wing Yau
  • Mobile communications
    Publication number: 20020147012
    Abstract: A method of automatically establishing a roaming service for a mobile telephone, that includes a pre-programmed SIM card, performs a Location Update in the following order.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 10, 2002
    Inventors: Edward Yan Tao Leung, Richard Midgett, Kwok Wing Yau