Patents by Inventor Cornelis C. de Graaf

Cornelis C. de Graaf 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).

  • Paging receiver and transmitting device adapted to said receiver
    Patent number: 4688034
    Abstract: Paging system comprising a transmitter and one or more paging receivers, where said transmitter may transmit a communication comprising a first data block to all receivers. Each receiver comprises a first memory comprising up to five registers for storing therein component data blocks of said first data block, of which a second component representing a receiver address or select code in register, a third component, possibly composed of fifth and sixth subcomponents representing a message code and a message identification code in registers respectively, a fourth component representing a control code in register, and a seventh component representing an alternative message identification code in register 18.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: August 18, 1987
    Assignee: Ericsson Paging Systems B.V.
    Inventor: Cornelis C. de Graaf