Patent · US Active

Method for calibrating frequency of driving voltage waveform for linear resonance device and related device

US10958203B2 · kind B2 · utility

1Cited by
30References
17Claims
0Family size

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Key dates

Filing dateNov 14, 2019
Grant dateMar 23, 2021
Priority date
Expiry dateNov 14, 2039

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02B70/10
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

There are provided a method, a system and a device for calibrating a frequency of a driving voltage waveform for a linear resonance device. An actual sampling frequency is continuously corrected, so that a difference between a measured natural frequency of the linear resonance device obtained during a calibration process and a frequency of a standard driving voltage waveform stored in a driving chip for the linear resonance device is in a predetermined range. The driving chip outputs a driving waveform at a finally corrected actual sampling frequency, to drive the linear resonance device. Further, only an actual sampling frequency is required to be adjusted, and it is not required to modify waveform data stored in the driving chip for the linear resonance device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.