Patents by Inventor Jan P. Maat

Jan P. Maat 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).

  • Telecommunication system, in particular telephone system
    Patent number: 4723272
    Abstract: A telephone communication system comprising a plurality of intercoupled sub-systems each of which comprises a control-unit and at least one peripheral module to which multiple terminals are connected. The control-unit of each sub-system includes destination numbers identifying the terminals within the system, and from the destination number provided by a source terminal determines with which sub-system the destination terminal is associated. When the destination terminal sub-system differs from the source terminal sub-system, signalling information identifying the source terminal is transmitted to the control-unit of the destination terminal sub-system. The control-unit of the destination terminal sub-system then analyzes such information and establishes the connection to the destination terminal therein.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: February 2, 1988
    Assignee: U.S. Philips Corporation
    Inventor: Jan P. Maat