Automatic gain control of transponded supervisory audio tone
US5410741A · kind A · utility
7Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Mar 23, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/005
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The process of the present invention encompasses a method for automatically controlling the gain of a transponded modulation signal. The process receives a demodulated signal, detects whether SAT is present, and transmits the SAT. Before transmission, the transmitted SAT is adjusted for the gain of the modulator and for the gain of the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.