发明名称 |
PROCEDE ACOUSTIQUE POUR DISCRIMINER DES ENVELOPPES EN PAPIER ET EN MATIERE PLASTIQUE |
摘要 |
<p>The invention concerns a method for discriminating in a machine processing mail items, mail items (P1, P2, P3) contained in paper envelopes and mail items contained in plastic envelopes, which consists in moving each item in front of a suction pressure element (6) so as to produce an acoustic signal resulting from the suction effect of the suction pressure element on a surface of said item, and in comparing said acoustic signal with a reference signal to detect whether the envelope of said item is made of paper or of plastic material.</p> |
申请公布号 |
FR2807347(A1) |
申请公布日期 |
2001.10.12 |
申请号 |
FR20000004443 |
申请日期 |
2000.04.07 |
申请人 |
MANNESMANN DEMATIC POSTAL AUTOMATION S.A. |
发明人 |
CHAUME FRANCOIS;TELUOB JEAN MARC |
分类号 |
B07C5/02;B07C5/34;B07C5/36;(IPC1-7):B07C1/00 |
主分类号 |
B07C5/02 |
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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