Inductive coupling exchange in a portable intelligent object with central and peripheral circuits
AssigneeGemalto SA
InventorJean-Paul Caruana
Life of this patent
Estimating the term…
Abstract
A portable intelligent object has first and second communication interfaces with a station. The first communication interface can send and/or receive data by means of inductive coupling with the station. The object also has an integrated peripheral circuit. All of the data exchanged between the peripheral circuit and the central circuit passes through the station.
Claims23
A system for exchanging data with portable intelligent objects, comprising:
- at least one portable intelligent object having a data processing circuit connected to a first contactless interface and a peripheral circuit connected to a second contactless interface;
- and
- a reader including an antenna that (i) is inductively coupled to the first contactless interface of said data processing circuit and to the second contactless interface of said peripheral circuit and (ii) communicates directly, via said inductive coupling, with both the data processing circuit of a portable intelligent object and the peripheral circuit of a portable intelligent object via their respective contactless interfaces, such that all data exchanged between the data processing circuit of a portable intelligent object and the peripheral circuit of a portable intelligent object is communicated directly by said antenna of said reader to the respective contactless interfaces of the data processing circuit and the peripheral circuit.
A method of exchanging data by means of intelligent portable objects each including:
- at least first and second communication interfaces inductively coupled to a common antenna of a reader;
- at least one peripheral circuit connected to the first communication interface;
- and
- a data processing circuit connected to the second communication interface, wherein the method comprises:
- communicating data, via the common antenna of the reader, such that all data exchanged between the peripheral circuit of an intelligent portable object and the data processing circuit of an intelligent portable object is communicated directly by the common antenna of the reader to the respective contactless interfaces of the data processing circuit and the peripheral circuit.
An intelligent portable object comprising:
- a data processing circuit connected to a first contactless interface that communicates directly with an antenna of an external reader via inductive coupling;
- and
- a peripheral circuit connected to a second contactless interface that communicates directly, via inductive coupling, with said antenna of said external reader with which said first contactless interface communicates, wherein all data exchanged between the peripheral circuit of an intelligent portable object and the data processing circuit of an intelligent portable object is communicated directly by a common antenna of said external reader through their respective contactless interfaces.
A peripheral circuit for use within an intelligent portable object having a central data processing circuit, comprising:
- an interface for direct communication by inductive coupling with an antenna of a reader, wherein
- said peripheral circuit exchanges all data with the central data processing circuit of an intelligent portable object via said inductive coupling with the antenna of the reader, without utilizing any conductive physical connection to the central data processing circuit.
An intelligent portable object comprising:
- a peripheral circuit connected to a contactless interface that communicates directly, via inductive coupling, with an antenna of an external reader, wherein said peripheral circuit, through its contactless interface, exchanges all data with a central data processing circuit of another intelligent portable object via inductive coupling with the antenna of the external reader.
Dependencies are inferred from the claim text.