Patents by Inventor Steven Edward Nelson

Steven Edward Nelson 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).

  • Patent number: 5920401
    Abstract: The compact document imager and display apparatus has a two-dimensional image sensor array, a flat panel display such as a liquid crystal display (LCD), and processing electronics. An illumination source can be added to illuminate the document on the sensor array and to provide backlight for the LCD. Color imaging may be achieved by providing three sequential illumination pulses of appropriate colors. A document is placed in close contact with the sensor array. The document is illuminated and an electronic image is captured and stored in the processing electronics. The captured image can be displayed on the LCD by the processing electronics. The document, such as a single sheet of paper or a transparency, can be illuminated by the room light to perform image capture. The compact document imager can be used as a facsimile machines by providing telephone connections. Documents can be scanned using the sensor array and sent to other devices. Documents can be received from other sources and displayed on the LCD.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: July 6, 1999
    Assignee: Xerox Corporation
    Inventors: Robert A. Street, Ichiro Fujieda, Steven Edward Nelson, Leonard Eugene Fennell