Phase tracking loop impairment monitor for modems
US4534036A · kind A · utility
4Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1982 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Dec 8, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/08
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This invention provides a system which monitors the phase error signal generated by a phase tracking loop. The system includes a first circuit for averaging the phase error signal thus generating an uncorrected phase error, and a second signal for integrating the phase error to generate a corrected phase signal. The two generated signals are added together to yield a total phase error signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.