A.M. Signal generator having an r.f. output level control
US4013961A · kind A · utility
12Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1975 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Jul 14, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L5/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An A.M. signal generator having an r.f. level control arrangement includes a modulator whose output gain is controllable, a detector for detecting the A.M. wave produced by the modulator and means for sampling and storing the output of the detector at times occurring when the modulating wave passes through a predetermined amplitude level. The sampled and stored signal is then compared with a D.C. voltage and the resultant of the comparison is applied back to the modulator in opposite fashion to variation in the level of the A.M. wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.