发明名称 Method for avoiding fraud on a taximeter or tachograph
摘要 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.
申请公布号 US6109520(A) 申请公布日期 2000.08.29
申请号 US19980115254 申请日期 1998.07.13
申请人 RICARD, CLAUDE 发明人 RICARD, CLAUDE
分类号 G07B13/02;G07C7/00;(IPC1-7):G07B13/00 主分类号 G07B13/02
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