Patents by Inventor John David Virzi

John David Virzi 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).

  • Loopback transmission testing in a communications device
    Patent number: 5953372
    Abstract: A circuit and technique whereby loopback testing is performed in a serial communications device by concurrently transmitting from and receiving data into a single FIFO storage unit. The circuit includes a transmitter, a receiver, a single FIFO, operatively connected to both the transmitter and the receiver, for storing both transmitted and received data at the end of a loopback test. The circuit may be part of a transceiver which may in turn be part of an infrared communications controller installed in a personal computer.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: September 14, 1999
    Assignee: Standard Microsystems Corporation
    Inventor: John David Virzi