Auto frequency calibration method
US9838024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Nov 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of generating an output signal includes determining a sampling period N according to a number of most significant bits (MSBs) of a divider number control signal. The method also includes determining a first logic value of a control signal by a comparing circuit based on the sampling period N, and generating a coarse tuning signal by a code generating circuit based on a phase difference signal and the control signal. When an M-th least significant bit (LSB) of the number of MSBs of the divider number control signal equals a second logic value, the sampling period N is set based on the M-th LSB of the number of MSBs of the divider number control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.