Patents by Inventor Fredrick E. Spangler

Fredrick E. Spangler 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).

  • Patent number: 4926496
    Abstract: A digital mobile radio transceiver allows even the most unsophisticated user to simply and easily obtain emergency communications. The transceiver is programmed with "personality" data specifying one or more "systems", each "system" specifying one or more "groups" of or individual radio transceivers. Systems are selected by operating a first selector switch, and groups are selected by operating a second selector switch. The transceiver simultaneously displays the "group" and "system" which have been selected. One or more group identification codes uniquely designate an emergency communications handler (e.g., an emergency dispatch operator). The group designated by the transceiver group selector switch position "9" of each system programmed into the radio transceiver corresponds to this emergency group identification code. Moreover, the "system" designated by system selector switch "11" has only one "group"--the emergency group identification code corresponding to the group selector position "9".
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: May 15, 1990
    Assignee: General Electric Company
    Inventors: Robert E. Cole, Fredrick E. Spangler