0575013-A1 is referenced by 5 patents and cites 7 patents.

Disclosed is a system for the contactless exchange of data between one or more transmitter/receiver devices and a plurality of responders. According to the invention, at least one of the responders is designed to exchange data via a microwave connection with a transmitter/receiver device operating in the microwave range, and to exchange data via an inductive coupling with an inductively operating transmitter/receiver device.

Title
System for the contactless exchange of data, and responder for use in such a system.
Application Number
EP19930201767 19930618
Publication Number
0575013 (A1)
Application Date
June 18, 1993
Publication Date
December 22, 1993
Inventor
Van Zon Bernardus Clemens Mari
NL
Assignee
Nedap
NL
IPC
G06K 07/10
G06K 19/07
G06K 07/00
G06K 19/07
G06K 07/00
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