Patents by Inventor Chuck Snodgrass

Chuck Snodgrass 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).

  • Grayscale video conversion system
    Patent number: 5307083
    Abstract: A multi-shade video conversion system is described to provide an enhanced "Macintosh SE/30" computer to display multi-shade images on the "SE/30" internal CRT. The conventional "SE/30" computer has a microprocessor motherboard, an expansion slot, and an internal CRT. An internal CRT amplifier apart from the motherboard normally receives and responds a binary video signal from the microprocessor motherboard to drive the internal CRT. The conversion system comprises a video frame buffer expansion board, a replacement analog CRT amplifier, and replacement cabling. The frame buffer expansion board generates an analog video signal which is selected provided to the replacement CRT amplifier, allowing multi-shade images to be displayed in the internal CRT. The frame buffer expansion board also has an auxiliary video output port to drive an external CRT. The replacement cabling supplies the motherboard binary video signal to the expansion board rather than to the replacement CRT amplifier.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 26, 1994
    Assignee: Micron Technology, Inc.
    Inventors: Chuck Snodgrass, Tom Stamm, Greg Blodgett