专利名称：Method and device for the controlled
enabling of a current supply
发明人：WINTERHALDER, KLAUS DIPL.-PHYS.,LITZ,
HEINZ
申请号：EP94109506.9申请日：19940620公开号：EP0629863A2公开日：19941221
专利附图：
摘要：A method and a device for data-carrier controlled enabling of a current supplyare introduced. The device preferably consists of an auxiliary device which is intended to
be mounted on an electricity meter and has a power switch which can be driven by acontrol device, via which the current supply for the user or electricity customer assignedto the electricity meter is enabled in accordance with the data which can be suppliedexternally via the data carrier. The data carrier is written with an electricity meter number,current withdrawal data as well as a reference which is a measure for the processes ofrewriting the data carrier. The control device compares this data and enables the currentsupply in the event of a positive comparison result by driving the power switch. Thecontrol device then changes its internal reference. Advantages: - only one data carriernecessary - high security
申请人：VES GMBH VERBUEND ELEKTRONIKSYSTEME ST.GEORGEN
地址：Industriestrasse 29 D-78112 St. Georgen DE
国籍：DE
代理机构：Patentanwälte Westphal, Buchner, Mussgnug Neunert, Göhring
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