Patents by Inventor Rubin Gelles

Rubin Gelles 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).

  • Imaging engine and method for code readers
    Patent number: 6340114
    Abstract: An imaging engine and signal processing devices and methods are disclosed for reading various kinds of optical codes. The compact structure may include a two dimensional image sensor, apparatus for focusing images at different focal disclosures, an aiming system, a hi-low beam illumination system and related signal processing circuits.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 22, 2002
    Assignee: Symbol Technologies, Inc.
    Inventors: Mark Correa, Rubin Gelles, Duanfeng He, Eugene Joseph, Yajun Li, Mehul Patel, Thomas M. Stankelis
  • Ambient light illuminated liquid crystal display system
    Patent number: 4997263
    Abstract: A liquid crystal display system utilizes an optical arrangement which is aligned so that ambient light from the direction of an obersver's view is channeled behind the liquid crystal display to provide back illumination therefor. An illuminator is arranged to provide supplementary illumination for the liquid crystal display as may be required. A photodetector determines when ambient light is inadequate for required display brightness and operates through appropriate control circuitry to turn the illuminator on or off as the case may be and to control the contrast of the liquid crystal display.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: March 5, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Richard L. Cohen, Rubin Gelles