Patents by Inventor Chu Nei

Chu Nei 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).

  • System for combining and encoding first plurality of video signals to produce second plurality of signals and transmitting the signals via unshielded telephone cable to remote workstation
    Patent number: 5479617
    Abstract: A type 286, 386, or 486 Personal Computer having a host controller comprising a standard VGA controller, a microprocessor, a receive and transmit unit, and an encoder is coupled via a ten line telephone cable to a remote VGA color display workstation having a base unit comprising a decoder, a RAMDAC, and microprocessor, and a receive and transmit unit. The encoder intelligently combines ten video signals (a pixel clock, six pixel signals, a video blanking interval (VBI) signal, and vertical and horizontal sync signals) and an I/O data transmit signal into four signals which are transmitted in a balanced fashion (requiring eight lines) to minimize signal noise so that shielding is unnecessary. An additional line is used to provide a ground reference to the remote workstation, and another line is used to provide an I/O data receive signal to the host controller microprocessor.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: December 26, 1995
    Assignee: Maxpeed Corporation
    Inventor: Chu Nei