Method for avoiding fraud on a taximeter or tachograph

Details Method for avoiding fraud on a taximeter or tachograph Method for avoiding fraud on a taximeter or tachograph

1998-07-13

2000-08-29

Lee, Michael G

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235 45, 235384, G07B 1300

Patent

active

061095206

ABSTRACT:
A method and device for avoiding fraud on a Taximeter or Tachograph, by connecting an auxiliary generator between the censor and the Taximeter or Tachograph. The signal which is applied to the Taximeter or Tachograph is analyzed by sampling, in an anti-fraud action is triggered off if this analysis shows that this signal has undergone a regular amplitude modulation.

REFERENCES:
patent: 4389563 (1983-06-01), Ricard
patent: 5155747 (1992-10-01), Huang
patent: 5629856 (1997-05-01), Ricard

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