Two point polar modulator
US9917686B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Jan 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A two-point phase modulator comprising a phase locked loop, PLL, having a voltage controlled oscillator, VCO, and a feedback path, a first modulation circuit for introducing a first modulation signal into the feedback path, the first modulation circuit generating the first modulation signal using a reference clock signal extracted from the PLL and derived from a first clock, a second modulation circuit for introducing a second modulation input into the VCO, the second modulation circuit generating the second modulation signal using a clock signal generated independently of the reference clock and a synchronizer for aligning the second modulation signal in time with the first clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.