Phase and amplitude digital modulation circuit and method
US6831526B2 · kind B2 · utility
1Cited by
6References
18Claims
0Family size
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Key dates
| Filing date | Jan 9, 2003 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Jan 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/362
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a circuit for modulating a carrier signal (Se) with a signal (SCj) having at least a modulation cell (CMi) by phase shift for receiving two digital control signals (Scji, SCji2) representing at least part of the digital modulation signal (SCj). For at least a value of the digital modulation signal (SCj), the method consists in applying on at least a common modulation cell (CMi), two digital control signals (SCji1, SCji2) of identical value, the modulation cell (CMi) delivering a signal, called a modulated elementary signal (Ssi), which is null for the digital modulation signal value (SCj).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.