公开(公告)号：US3671721A

公开(公告)日：1972-06-20

申请号：US3671721D

申请日：1969-12-12

申请人： REVENUE SYSTEMS LTD

发明人： HUNN BERNARD ALBERT ,  HOWELL ELGAN NEVILLE

IPC分类号： G06K7/08 ,  G06K19/067 ,  G07F7/08 ,  H03B1/00 ,  H03B5/12 ,  G06K19/06 ,  H03B23/00

CPC分类号： G06K19/0672 ,  G06K7/086 ,  G07F7/086 ,  H03B5/1243 ,  H03B2200/0008 ,  H03B2200/004 ,  H03B2200/0092 ,  H03B2201/0208

摘要： A data reading system for use particularly in cash- or goodsdispensing machines in which the data to be read is represented by a plurality of passive resonant devices in or on a card and in which, when said data is to be read from said card, said card is placed in the field of a reactive element fed with variable frequency oscillations and associated with counting means in such a way that the count registered by said counting means indicates the resonant frequency of any one or more of said resonant devices located in said field. A card for use in such a system comprises a plurality of passive resonant devices, the resonant frequencies of which represent the data carried by the card.

摘要翻译： 一种特别用于现金或出货机器的数据读取系统，其中要读取的数据由卡中或其上的多个无源谐振装置表示，并且当所述数据从所述卡片读取时 ，所述卡被放置在馈送有可变频率振荡并且与计数装置相关联的无功元件的场中，使得由所述计数装置登记的计数指示位于所述多个谐振装置中的任何一个或多个谐振装置的谐振频率 领域。