发明名称 |
Electronic coin validators. |
摘要 |
<p>The validator has a transmit coil TC for creating a magnetic field and a receive RC coil for detecting changes in the field due to the presence of a coin adjacent to the coils. The validator performs a test on each coin to provide a first parameter which is a measure of coin face area, and a second parameter which is a measure of coin resistance. The parameters are utilised to establish the validity of the coin.</p> |
申请公布号 |
EP0048557(A1) |
申请公布日期 |
1982.03.31 |
申请号 |
EP19810304000 |
申请日期 |
1981.09.02 |
申请人 |
PLESSEY OVERSEAS LIMITED |
发明人 |
STOCKDALE, JOHN ARNOLD;HEWINSON, JOHN |
分类号 |
G07D5/00;(IPC1-7):07F3/02;07D5/00 |
主分类号 |
G07D5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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