Radio-frequency communication device comprising a power supply of assisted radio-frequency origin
First Claim
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1. Radio-frequency communication device comprising:
- connection means connecting or intended to connect electrically an integrated circuit component with a first source of energy,a first supply managing circuit responsive to detection of an electromagnetic field for;
(i) disconnecting the first source of energy from the integrated circuit component while the electromagnetic field is present, and(ii) supplying said component with current of electromagnetic origin that is derived from the detected electromagnetic field,an alternative supply source for supplying said component, anda second additional supply managing circuit for managing the use of said alternative supply source for supplying said component, wherein said second additional supply managing circuit is separate from said first supply managing circuit and is configured to operate when energy supplied to the first supply managing circuit is insufficient.
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Abstract
A radio-frequency communication device includes connection means electrically connecting an integrated circuit component, or intended for this purpose; and selection means for selecting an electromagnetic current power supply for the component. The device includes an alternative power supply source for powering the component during the reception of an electromagnetic field as soon as the electromagnetic power supply current received by the component is insufficient.
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Citations
17 Claims
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1. Radio-frequency communication device comprising:
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connection means connecting or intended to connect electrically an integrated circuit component with a first source of energy, a first supply managing circuit responsive to detection of an electromagnetic field for; (i) disconnecting the first source of energy from the integrated circuit component while the electromagnetic field is present, and (ii) supplying said component with current of electromagnetic origin that is derived from the detected electromagnetic field, an alternative supply source for supplying said component, and a second additional supply managing circuit for managing the use of said alternative supply source for supplying said component, wherein said second additional supply managing circuit is separate from said first supply managing circuit and is configured to operate when energy supplied to the first supply managing circuit is insufficient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Radio-frequency communication device comprising:
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connection means connecting or intended to connect electrically an integrated circuit component, means for supplying said component with current of electromagnetic origin, an alternative supply source for supplying said component when an electromagnetic field is received as soon as the supply current of electromagnetic origin received by the component is insufficient, a means for managing an alternative supply for managing an alternative direct supply for the component, a circuit for charging the alternative source connected to a main battery, and an electromagnetic field detection circuit acting with said management means for inhibiting a discharging of the alternative source to the component in the absence of detection of electromagnetic field and for enabling discharging in the contrary case.
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14. Radio-frequency communication method using at least one integrated circuit component electrically connected with a first source of energy and a first supply managing circuit responsive to detection of an electromagnetic field for supplying current of electromagnetic origin that is derived from the detected electromagnetic field for supplying said component,
comprising a step of disconnecting the first source of energy from the integrated circuit component while the electromagnetic field is present, and comprising a step of providing a supply to the component by means of an alternative source, wherein said alternative source is managed by a second additional supply managing circuit for managing the use of said alternative source for supplying said component, said second additional supply managing circuit being separate from said first supply managing circuit and configured to operate when energy supplied to said first supply managing circuit is insufficient.
Specification