Patents by Inventor Ivan Lawrow

Ivan Lawrow 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).

  • Correlation peak location
    Patent number: 8442164
    Abstract: Apparatus for determining a location of a peak in correlation output samples, the apparatus being arranged to receive samples from at least one correlator over a plurality of symbol time periods; combine samples from a period that is longer than the symbol time period into combined samples; and determine the position of a peak in the combined samples.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: May 14, 2013
    Assignee: NXP B.V.
    Inventor: Ivan Lawrow
  • Method for acquiring timing and carrier synchronization of offset-QPSK modulated signals
    Patent number: 7751503
    Abstract: Embodiments of the invention consist in a method of carrier synchronization, comprising determining a frequency offset estimate from a rate of change of a phase difference between a local oscillator signal and a carrier signal of a received signal; and adjusting a frequency of the local oscillator signal by the frequency offset estimate.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: July 6, 2010
    Assignee: Jennic Limited
    Inventors: Ivan Lawrow, Stephen Bate
  • Data processing system and method
    Patent number: 7693927
    Abstract: Embodiments of the present invention relate to a data processing system comprising a first arithmetic unit comprising at least one finite field multiplier and at least one finite field adder for selectively performing at least two finite field arithmetic calculations; the data processing system comprising means to use a previous finite field arithmetic calculation result in a current finite field arithmetic calculation to determine at least part of a polynomial.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: April 6, 2010
    Assignee: Jennic Limited
    Inventor: Ivan Lawrow
  • METHOD AND APPARATUS FOR DETERMINING PROPAGATION DELAY
    Publication number: 20100081389
    Abstract: Embodiments of the present invention provide a method of determining a propagation delay of wireless communications between wireless network devices, comprising exchanging first and second messages with a wireless network device; determining first time information based upon the exchange of the first and second messages; receiving second time information from the wireless network device, the second time information based upon the exchange of the first and second messages; and determining a propagation delay based upon the first and second time information.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 1, 2010
    Applicant: JENNIC LTD.
    Inventors: Ivan LAWROW, Stephen BATE
  • CORRELATION PEAK LOCATION
    Publication number: 20100040117
    Abstract: Apparatus for determining a location of a peak in correlation output samples, the apparatus being arranged to receive samples from at least one correlator over a plurality of symbol time periods; combine samples from a period that is longer than the symbol time period into combined samples; and determine the position of a peak in the combined samples.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 18, 2010
    Applicant: JENNIC LTD
    Inventor: Ivan LAWROW
  • Method for acquiring timing and carrier synchronization of offset-QPSK modulated signals
    Publication number: 20070253512
    Abstract: Embodiments of the invention consist in a method of carrier synchronization, comprising determining a frequency offset estimate from a rate of change of a phase difference between a local oscillator signal and a carrier signal of a received signal; and adjusting a frequency of the local oscillator signal by the frequency offset estimate.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Applicant: JENNIC LIMITED
    Inventors: Ivan Lawrow, Stephen Bate
  • Data processing system and method
    Publication number: 20050050131
    Abstract: Embodiments of the present invention relate to a data processing system comprising a first arithmetic unit comprising at least one finite field multiplier and at least one finite field adder for selectively performing at least two finite field arithmetic calculations; the data processing system comprising means to use a previous finite field arithmetic calculation result in a current finite field arithmetic calculation to determine at least part of a polynomial.
    Type: Application
    Filed: August 25, 2003
    Publication date: March 3, 2005
    Inventor: Ivan Lawrow