Fast start-up circuit for low power crystal oscillator
US10608584B2 · kind B2 · utility
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2References
17Claims
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Key dates
| Filing date | Dec 17, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Apr 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0094
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for speeding up the start-up process of a crystal oscillator. The energy required for starting oscillations is inserted to the crystal by a stimulus in the form of a time-variant voltage or current pattern, either periodic or aperiodic. The stimulus is stopped after a pre-established period, then the oscillator continues to operate in its normal mode and completes the start-up process significantly faster, compared to a start-up process not comprising the above stimulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.