Patents by Inventor Edward G. Lewit

Edward G. Lewit 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).

  • Electrophoretic display panel with selective character addressability
    Patent number: 5627561
    Abstract: An electrophoretic display having a plurality of individual characters which are individually addressable for writing and erasing. The anode of the display has a plurality of character blocks which correspond to the character positions of the display. The character blocks are interconnected by a series of character column and row control lines which are insulated from each other. Each character block is connected to one row line and one column line, respectively, by a resistor and a diode which are arranged in parallel. A further resistor is connected in series with the diode. An individual character block is erased by applying a negative voltage to the specific column line and row line which cross at the desired character block.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: May 6, 1997
    Assignee: Copytele, Inc.
    Inventors: Christopher A. Laspina, Edward G. Lewit