Temperature compensation for a voltage controlled oscillator
US10756671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Oct 8, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus that is comprised of a controller, a digital-to-analog converter (DAC), a temperature sensor, an analog-to-digital converter (ADC), and a voltage controlled oscillator (VCO). The controller to reads temperature data proportional to a temperature of the VCO, reads previously-calculated calibration data based on the read temperature data, determines a frequency command signal based on the read previously-calculated calibration data, and outputs the frequency command signal. The DAC converts the frequency command signal into a frequency analog signal. The temperature sensor produces the temperature signal. The ADC converts the temperature signal into the temperature data. The VCO produces an output frequency based on the frequency analog signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.