Patents by Inventor Leonard P. Cygnapowicz

Leonard P. Cygnapowicz 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).

  • Network multimedia interface
    Patent number: 5544315
    Abstract: A multimedia network system (10) for connection to a computer (12) and a computer network (28). Asynchronous transmission mode cells on the network (28) are processed by a network interface board (22) with synchronous signals routed to an ISOBUS (26) and asynchronous signals routed through a packet memory (54) to the computer (12). Asynchronous signals are routed through the ISOBUS (26) to a video board (24) and converted for output to one or more audio/video output devices (36). Signals originating at one or more audio/video input devices (34) are processed through the video board (24) and the network interface board (22) to the network (28).
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: August 6, 1996
    Assignee: Communication Broadband Multimedia, Inc.
    Inventors: Carl R. Lehfeldt, Leonard P. Cygnapowicz