Polar phase or frequency modulation circuit and method
US11177994B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Aug 31, 2020 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Aug 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0483
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a polar phase or frequency modulator comprising: a normalized delay circuit (602) configured to delay edges of an input carrier signal (CLK_IN) based on normalized delay control values (φi) to generate a modulated output signal (RF_OUT); and a normalized delay calculator (604) configured to receive the modulated output signal (RF_OUT) and to generate the normalized delay control values (φi).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.