System for synthesizing a modulated signal
US5077757A · kind A · utility
5Cited by
0References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Jul 30, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2092
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A modulation system and associated method therefor for synthesizing a modulated signal. Information is converted into an in-phase signal portion and a quadrature signal portion. The two signal portions are combined by summation and difference operations, and the results are stored in registers. A multiplexer samples the resultant values stored in the registers wherein each register is sampled at least once during a period defined by a frequency of a carrier. The output of the multiplexer is a synthesized, modulated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.