Patents Assigned to FRAPINVENTIONS B.V.
  • Patent number: 9843331
    Abstract: The invention relates to a method for operating a mechanical resonator in an electronic oscillator, comprising determining a state space description of the resonator, in which state variables are the mass, the stiffness or dimensions of components used in the crystal resonator; providing a table with frequency correction factors as a function of a state space of a resonator; finding a frequency correction factor corresponding to the determined state space; and multiplying the output frequency of the resonator with the correction factor, and to an electronic oscillator, comprising a mechanical resonator, wherein an output frequency of the oscillator is multiplied by a frequency correction factor, the frequency correction factor being obtained from determination of the state variables of the resonator, in particular dominant mechanical state variables.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: December 12, 2017
    Assignee: FRAPINVENTIONS B.V.
    Inventor: Antonius Johannes Maria Montagne
  • Publication number: 20170005664
    Abstract: The invention relates to a method for operating a mechanical resonator in an electronic oscillator, comprising determining a state space description of the resonator, in which state variables are the mass, the stiffness or dimensions of components used in the crystal resonator; providing a table with frequency correction factors as a function of a state space of a resonator; finding a frequency correction factor corresponding to the determined state space; and multiplying the output frequency of the resonator with the correction factor, and to an electronic oscillator, comprising a mechanical resonator, wherein an output frequency of the oscillator is multiplied by a frequency correction factor, the frequency correction factor being obtained from determination of the state variables of the resonator, in particular dominant mechanical state variables.
    Type: Application
    Filed: December 10, 2014
    Publication date: January 5, 2017
    Applicant: FRAPINVENTIONS B.V.
    Inventor: Antonius Johannes Maria MONTAGNE