Immunity to Variations in Limited Resources, Provided to an Object with a Dual Interface
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Abstract
The invention relates to a method for creating immunity to the variations in resources of a portable object comprising a processor block, and at least two communication and/or supply interfaces with and/or without contact. Said method comprises at least one step for controlling the availability state of at least one resource on one of the interfaces, and a resource selection step. The inventive method is characterised in that it comprises the following steps according to which an interruption signal is generated towards the processor block during a variation in the availability of the resource, and the processor treats the interruption signal in order to enable a selection of resources. The invention also relates to the associated portable object.
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Citations
46 Claims
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1-33. -33. (canceled)
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34. A process of immunity to variations in resources of a portable object comprising a processor block, at least two communication and/or supply interfaces with and/or without contact, the aforementioned process comprising at least:
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a control step of a state of availability of at least one resource on one of the interfaces and a step of selection of the resource(s), wherein the process comprises the following steps; an interrupt signal is generated to the processor block on a variation in availability of the resource(s), and the processor processes the interrupt signal in order to allow selection of the resources. - View Dependent Claims (35, 36, 37, 38, 39)
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40. A device for immunity to variations in resources of a portable object comprising a processor block, at least two communication and/or supply contact and/or contactless interfaces, with said device comprising at least means of control of a status of availability of at least one resource on one of the interfaces and selection of resource(s),
wherein said device is capable of generating an interruption signal to the processor block during a variation in availability of resource(s) and said processor is capable of processing the interruption in order to allow selection of the resources.
Specification