Method and apparatus for modulation differentiation
US5912922A · kind A · utility
14Cited by
6References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 26, 1998 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Jun 26, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/318
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
To differentiate between different types of modulation, a fast RSSI detector performs a RSSI measurement on a received signal. The output of the RSSI detector is sampled over a sampling window and generates sampled values. A processor calculates absolute values of piecewise first derivatives of the sampled values and sums the result to create a summation constant. A modulation detector determines the type of modulation based on the value of the summation constant and an RSSI compensation calculates a compensation factor to correct the RSSI measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.