Patents by Inventor John Van Ryzin

John Van Ryzin 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).

  • I/O port signal conversion apparatus and method
    Patent number: 6065075
    Abstract: I/O port signal conversion apparatus for converting between I/O port signals of a first voltage level coupled from or supplied to an I/O port of a computer and A1 signals of a second voltage level supplied to or coupled from audio/video equipment arranged in an S-LINK cable bus system with an S-LINK cable bus. The computer inserts into the I/O port signals audio/video equipment headers that flag respective audio/video equipment which poll the S-LINK cable bus. A plug couples the I/O port signals and the A1 signals between the I/O port and the S-LINK cable bus system. A voltage control circuit disposed within the plug converts between the voltage level of the I/O port signals and the voltage level of the A1 signals.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: May 16, 2000
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventors: John Van Ryzin, Adrian Parvulescu