Serrodyning system employing an adjustable phase shifting circuit
US4297641A · kind A · utility
21Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Sep 28, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2064
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Two adjustable level signal translating devices in separate signal paths are arranged to receive an input alternating frequency signal and to pass the signal at respective desired levels to a vector summing circuit. One of the signal paths undergoes an additional 90.degree. phase shift. The vector summing circuit produces an output signal shifted in phase by an amount between 0.degree. and 90.degree. relative to the input signal depending on the levels of signals from the two translating devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.