Patents by Inventor Grzegorz M. Waligorski

Grzegorz M. Waligorski 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).

  • PULSE-CONTROLLED LIGHT EMITTING DIODE SOURCE
    Publication number: 20090140660
    Abstract: A light-emitting diode array is driven by a digital control. The digital control modulates the pulse width of pulses applied to the light-emitting diode. The intensity of the output is controlled by controlling the width of pulses applied to the light-emitting diode. Since light-emitting diodes have very low inertial energy, this system can be rapidly turned on and turned off. The output is integrated to produce a uniform output.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 4, 2009
    Applicant: Aptina Imaging Corporation
    Inventors: Eric R. Fossum, Grzegorz M. Waligorski
  • Metal mask for light intensity determination and ADC calibration
    Patent number: 7324690
    Abstract: An apparatus and method for controlling gain characteristics in a CMOS imager and for calibrating light intensity and analog to digital conversion in a pixel array. A mask with varying sized apertures is provided over pixels of an array outside the active area for use in intensity adjustments and calibration.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: January 29, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Peter P. Altice, Jr., Jeffrey A. McKee, Grzegorz M. Waligorski