Process and device for avoiding fraud on a taxi equipped with a taximeter or on a truck equipped with a chronotachograph
US5629856A · kind A · utility
7Cited by
9References
21Claims
0Family size
Inventor
Key dates
| Filing date | Jan 18, 1995 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Jan 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C7/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic device, placed in an impregnable envelope and electrically connected between an electronic sensor and a taximeter or chronotachograph, tests at least one of the internal characteristics of the active dipole present between two output wires of the sensor or electrical characteristics of a signal present at its terminals. The test values are then compared with one or several reference values. An electronic anti-fraud action is triggered in the event of non-conformity between the test values and the reference values. One anti-fraud action includes preventing the functioning of the taximeter or chronotachograph.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.