Patents by Inventor James L. Troe

James L. Troe 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).

  • Cellular telephone locator using a mobile data system
    Patent number: 5341410
    Abstract: A mobile data terminal which is located proximate to a cellular telephone unit is used to provide customer location information from a foreign cellular telephone service region to the cellular telephone service region in which the customer is a cellular telephone service subscriber. The mobile data terminal provides identification data to a mobile data base radio station located in the foreign cellular telephone service region. The cellular telephone network control center of the cellular telephone service region in which the customer is a subscriber is informed of the foreign cellular telephone service region in which the customer is currently located, possibly through the use of a national clearing house. In this manner, the customer can be reached on the cellular telephone unit in the foreign cellular telephone service region.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: August 23, 1994
    Assignee: RAM Mobile Data USA Limited Partnership
    Inventors: Carl R. Aron, James L. Troe