Traffic speed radar unit
US5159345A · kind A · utility
10Cited by
1References
15Claims
0Family size
Inventor
Key dates
| Filing date | Feb 15, 1991 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Feb 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved traffic speed radar unit, operating on the conventional doppler system, is disclosed wherein the unit includes means to verify that the internal time base frequency used to calculate vehicle speeds has not changed. Also, electronic memory is added both to facilitate an officer's work in taking notes and to allow for a more complete unit history to be maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.