Patents by Inventor Harold E. Simpson

Harold E. Simpson 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).

  • Radio having memory means for storing radio user validation code
    Patent number: 5404580
    Abstract: A radio (e.g. a cellular radio telephone) is provided which is capable of operating with a set of incoming and outgoing call functions. Removable memory means 132 are provided (e.g. a smart card) for storing radio function selecting information 133 and a radio user validation code. The radio communicates with a radio communications system in response to the code for enabling the radio to receive incoming calls at least. Radio function control means activate a subset of the call functions within the set of call functions in response to the radio function selecting information stored in the removable memory means.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: April 4, 1995
    Assignee: Motorola, Inc.
    Inventors: Harold E. Simpson, Poul E. Sogaard Rasmussen