Patents by Inventor Michael Addison Miller

Michael Addison Miller 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).

  • SIM card secured subscriber unit
    Patent number: 6141563
    Abstract: A subscriber unit (101) includes a SIM card reader (107) for receiving a SIM card (105). The subscriber unit (101) is serialized and has stored therein an alphanumeric signature value which is associated with the specific serialized subscriber unit (101). The subscriber unit (101) is fully operable only with a SIM card (105) having stored therein the specific signature value corresponding to the serialized subscriber unit (101). A user having a SIM card (105) containing the specific signature value for that subscriber unit can select a mode of user operation which will permit multiple selected SIM card holding users to use the subscriber unit.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: October 31, 2000
    Assignee: Motorola, Inc.
    Inventors: Michael Addison Miller, James Morris Tooker
  • Multiple user SIM card secured subscriber unit
    Patent number: 6119020
    Abstract: A subscriber unit (101) includes a SIM card reader (107) for receiving a SIM card (105). The subscriber unit (101) is serialized and has stored therein an alphanumeric signature value which is associated with the specific serialized subscriber unit (101). The subscriber unit (101) is fully operable only with a SIM card (105) having stored therein the specific signature value corresponding to the serialized subscriber unit (101). A user having a SIM card (105) containing the specific signature value for that subscriber unit can select a mode of user operation which will permit multiple selected SIM card holding users to use the subscriber unit.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: September 12, 2000
    Assignee: Motorola, Inc.
    Inventors: Michael Addison Miller, James Morris Tooker