Methods and apparatus for validating coins

专利名称：Methods and apparatus for validating coins发明人：Cattani, Thomas, J.,Dillon, Stephen, J.申请号：EP99310502.2申请日：19991223公开号：EP1017026A3公开日：20011024

专利附图：

摘要：A coin validator is arranged to sample the outputs of electromagnetic sensorsin order to derive measurements for use in testing coins. Frequency measurements aremade by counting a predetermined number of oscillator cycles, terminating the sampleperiod in response to this count being reached, and taking into account the duration of

the sampling period and the number of cycles of the oscillator during the samplingperiod, including any cycles which may have occurred following the predeterminednumber. The predetermined number is altered in order to change the sampling period.

申请人：Mars Incorporated

地址：6885 Elm Street McLean, Virginia 22101-3883 US

国籍：US

代理机构：Burke, Steven David

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