Wide band radar detector with three-sweep input stage
US6400305B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Dec 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A police radar detector detects police radar signals in the X, K and wide Ka police radar bands and rejects interfering Ka band signals that are a higher harmonic of a nuisance source having a fundamental frequency adjacent to the X police radar bands. Each of the three police radar bands is separately swept in a first mixer stage with the resulting IF signal concurrently demodulated in two IF circuits. The first IF circuit detects signals that were received in the X, K and outer portions of the wide Ka band during respective sweeps. The second IF circuit detects nuisance signals adjacent to the X and K bands, and the inner portion of the wide Ka band during respective sweeps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.