发明名称 |
Double document detection system |
摘要 |
A system for detecting the presence of more than one document along a path during the processing of the documents. A capacitance is introduced by the plural documents in contact with each other and wherein a delay signal is combined with an original signal to generate a multiple document detect signal for indicating the presence of the multiple documents.
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申请公布号 |
US4243216(A) |
申请公布日期 |
1981.01.06 |
申请号 |
US19790047460 |
申请日期 |
1979.06.11 |
申请人 |
NCR CANADA LTD. - NCR CANADA LTEE |
发明人 |
MAZUMDER, ALI T. |
分类号 |
B65H7/12;B42C19/08;G06K13/067;(IPC1-7):B65H7/06 |
主分类号 |
B65H7/12 |
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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