Patents by Inventor DMITRY AIZENSHTAT

DMITRY AIZENSHTAT 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).

  • Correlated double sampling device and image sensor
    Patent number: 9077923
    Abstract: A CDS device of an image sensor having a pixel array includes first comparators, second comparators and third comparators. The first comparators are coupled to columns of the pixel array, and generate a positive amplified signal and a negative amplified signal by comparing the analog signal and a ramp signal. The second comparators are coupled to a first set of the first comparators coupled to first columns of the pixel array, and generate a first comparison signal enabled to a first logic level by comparing the positive amplified signal and the negative amplified signal. The third comparators are coupled to a second set of the first comparators coupled to second columns of the pixel array, and generate a second comparison signal enabled to a second logic level by comparing the positive amplified signal and the negative amplified signal.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: July 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Vadim Gelfand, Claudio Jakobson, Dmitry Aizenshtat
  • CORRELATED DOUBLE SAMPLING DEVICE AND IMAGE SENSOR
    Publication number: 20140239153
    Abstract: A CDS device of an image sensor having a pixel array includes first comparators, second comparators and third comparators. The first comparators are coupled to columns of the pixel array, and generate a positive amplified signal and a negative amplified signal by comparing the analog signal and a ramp signal. The second comparators are coupled to a first set of the first comparators coupled to first columns of the pixel array, and generate a first comparison signal enabled to a first logic level by comparing the positive amplified signal and the negative amplified signal. The third comparators are coupled to a second set of the first comparators coupled to second columns of the pixel array, and generate a second comparison signal enabled to a second logic level by comparing the positive amplified signal and the negative amplified signal.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Inventors: VADIM GELFAND, CLAUDIO JAKOBSON, DMITRY AIZENSHTAT