Patents by Inventor Yefim Fefer

Yefim Fefer 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).

  • Patent number: 7969181
    Abstract: A device and method for adjusting an impedance of an output driver of an integrated circuit; the method includes: (i) receiving, by the output driver, a first square wave signal that should be driven by the output driver to provide a second signal; (ii) monitoring, by a monitoring circuit included in the integrated circuit, the second signal during an output driver transient period resulting from a first square wave signal transient to provide a monitoring result; (iii) determining whether to adjust the impedance of the output driver in response to the monitoring result; and (iv) adjusting the impedance of the output driver in response to the determination.
    Type: Grant
    Filed: February 3, 2008
    Date of Patent: June 28, 2011
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Yefim Fefer, Mikhail Bourgart, Sergey Sofer
  • Patent number: 7741826
    Abstract: A method and a device, the device has ground voltage elevation compensation capabilities and includes: multiple current consuming components; a positive voltage supply input; a negative voltage supply input; and a compensation circuit, coupled to the negative voltage supply input and to a grounding element; wherein the compensation circuit is adapted to detect a ground voltage elevation resulting from a flow of excess consumption current through the grounding element, and in response couple the negative voltage supply input to the grounding element; wherein the excess current flows through the grounding element due to an increment in a current consumption of a current consuming element of the device.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: June 22, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Yefim Fefer, Michael Zimin, Sergey Sofer