Patents by Inventor Raphael Bustin

Raphael Bustin 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).

  • Systems and methods for improving the scan-line throughput of an image scanner using a modulated light source
    Patent number: 8681399
    Abstract: This disclosure provides systems and methods for decoupling the mechanical drive systems of image scanners from the exposure system. A light source, such as an array of light-emitting diodes (LEDs), may be modulated in order to maintain a constant exposure for each scan-line, regardless of the document velocity. Accordingly, the present systems and methods allow for continuous document scanning at varying speeds. An automatic document feeder may dynamically adjust the velocity of a document without negatively impacting the exposure of the image scan. As the velocity of the document is changed, the modulation rate of the light source may be adjusted to maintain a constant exposure.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: March 25, 2014
    Assignee: Conexant Systems, Inc.
    Inventor: Raphael Bustin
  • Zero reference and offset compensation circuit
    Patent number: 4229703
    Abstract: A zero reference and offset compensation circuit for an operational amplifier operating in the inverting mode in order to correct for both current and voltage offset errors.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: October 21, 1980
    Assignee: Varian Associates, Inc.
    Inventor: Raphael Bustin