Patents by Inventor Cristian-Nicolae Presura

Cristian-Nicolae Presura 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).

  • DEVICE AND METHOD FOR ESTIMATING THE HEART RATE DURING MOTION
    Publication number: 20140213858
    Abstract: The present invention relates to a portable device (10) for determining a heart rate of a person (20), comprising a heart rate measurement unit, a motion measurement unit for measuring the motion of a body part (12), and a processing unit. The processing unit is adapted to measure a signal quality of the heart rate signal and accordingly switch between two calculation modes: If the signal quality is above a predefined threshold, the heart rate is calculated based on the heart rate signal. If the signal quality is so poor that a reliable calculation of the heart rate is technically not possible anymore based on the heart rate signal, the processing unit switches to its second calculation mode, in which the heart rate is estimated based on the motion signal by estimating a heart rate constant, which depends on the frequency of the motion signal, and defining an exponential development of the heart rate, starting at the last reliably measured heart rate and finishing at the estimated heart rate constant.
    Type: Application
    Filed: September 4, 2012
    Publication date: July 31, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Cristian Nicolae Presura, David Antoine Christian Marie Roovers
  • Apparatus and method for inspecting a patterned part of a sample
    Patent number: 7453577
    Abstract: An inspection apparatus is disclosed having an radiation system configured to provide an radiation beam, a beamnsplitter configured to create, from the radiation beam, a first illumination beam and a second illumination beam directed to a planar reference part of a sample and a patterned part of the sample, respectively, and a beam detector configured to detect a detection beam, the detection beam comprising a recombination of radiation scattered from the planar reference part and the patterned part.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: November 18, 2008
    Assignee: ASML Netherlands B.V.
    Inventors: Jan Evert Van Der Werf, Arie Jeffrey Den Boef, Cristian-Nicolae Presura
  • Inspection apparatus, sample and inspection method
    Publication number: 20060126074
    Abstract: An inspection apparatus is disclosed having an radiation system configured to provide an radiation beam, a beamnsplitter configured to create, from the radiation beam, a first illumination beam and a second illumination beam directed to a planar reference part of a sample and a patterned part of the sample, respectively, and a beam detector configured to detect a detection beam, the detection beam comprising a recombination of radiation scattered from the planar reference part and the patterned part.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 15, 2006
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Jan Van Der Werf, Arie Den Boef, Cristian-Nicolae Presura