Patents by Inventor Peter D. Hudson

Peter D. Hudson 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).

  • Data card circuits
    Patent number: 4841133
    Abstract: An integrated circuit for a data or "smart" card includes a non-volatile memory (8) having a transport code preprogrammed therein, control circuitry (10), a comparator (24) for comprising an externally-applied code and the transport code, and a fuse (26) which is blown if the two codes match thereby allowing the card to be initialised with a personal identification number and initial credit values. A second fuse (28) may also be provided which is blown if the two codes do not match and sensing means (32, 34) sense the status of the two fuses (26, 28) and block any further attempts to initialise the card if the second fuse (28) is blown and the first fuse (26) is not.
    Type: Grant
    Filed: March 30, 1988
    Date of Patent: June 20, 1989
    Assignee: Motorola, Inc.
    Inventors: Anil Gercekci, Michel Bron, Peter D. Hudson