Simultaneous analog and digital communications with a selection of different signal point constellations based on signal energy
US5436930A · kind A · utility
28Cited by
12References
22Claims
0Family size
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Key dates
| Filing date | Jun 14, 1993 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Jun 14, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An analog signal is added to a data signal that specifies a symbol in a symbol constellation to produce a combined signal that is transmitted to a receiver. The symbol constellation is picked from a plurality of symbol constellations having differing symbol densities based on the amplitude of the analog signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.