Method and apparatus for direct detection of communication system leakage signals
US6313874A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1997 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Nov 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/309
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A receiver circuit, which may be used in a leakage detector, includes an RF input, a narrow band filter, and a direct demodulator. The leakage detector in which the receiver circuit may be used is operable to measure leakage in a communication system, the communication system operable to transmit broadband communication signals comprising one or more radio frequency carrier signals modulated by one or more baseband communication signals, wherein each radio frequency carrier signal has a channel frequency. Essentially, the exemplary receiver circuit according to the present invention is operable to generate a baseband leakage signal. To this end, the RF input is coupled to a source of broadband communication signals and receives a broadband communication signal therefrom, the broadband comnunication signal including a first signal associated with a first channel frequency. The narrow band filter is operably coupled to the RF input to receive at least a portion of the broadband communication signal and producing a filtered first signal therefrom, the narrow band filter having a Q value at least on the order of 1000 and further having a pass band that includes the first channel freque…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.