Variable delay line detector
US6396338B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D3/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A variable delay line detector (34, 48, 66)includes a power splitter (36, 50, 68), a mixer (44, 62, 72) and a variable delay line (42,52, 70). Various devices are suitable for the variable delay line (42, 52, 70), such as a non-linear transmission line (NLTL). By providing a variable delay line, the variable delay line detector (34, 48, 66) is adapted to be programmed in real time thus making it suitable in applications where the phase and or frequency of the input signal varies. As such, the variable delay line detector (34, 48, 66) may be used in applications heretofore unknown, such &a an inexpensive demodulator in a frequency hopped spread spectrum system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.