Signal modulator
US10862471B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2019 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Feb 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/351
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal modulator for modulating at least one input signal is disclosed. The modulator includes an adaptive ramp generator receiving a clock signal having a clock cycle. The adaptive ramp generator provides a ramp signal having a profile starting from a minimum level adjusted in each clock cycle. The signal modulator may receive a first, second, and third input signal, and a clock signal. The first and second input signals may derive from a single signal where the second signal is equal to the first signal shifted by 180 degrees. The third signal may be a fixed level that sets the nominal duty cycle of the modulator. The input signal having the highest amplitude among the first, second, and third input signals is identified. The minimum level of the ramp signal is adjusted, and the peak value of the ramp maintained substantially equal to the signal having the highest amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.