Method of managing a plurality of electronic microcircuit chip readers and equipments for implementing said method
First Claim
1. A method for coordinated management of a plurality of contactless radio-frequency readers of chips incorporating electronic microcircuits, the method comprising:
- transmitting, in a first time interval, transmit operations composed of command instructions from each of the plurality of readers to the electronic microcircuits of the chips associated with each respective reader; and
receiving, in a second time interval, receive operations composed of responses from the electronic microcircuits of the chips associated with each respective reader,wherein the first and second time intervals do not overlap,wherein each of the plurality of readers are active readers, whereby the active readers are synchronized to group their respective transmitting and receiving into distinct time intervals, andwherein a synchronization process includes;
collecting durations of the transmit operations for sending the command instructions of first transmit/receive cycles of the active readers; and
sending the active readers instructions to execute the transmit operations for sending the command instructions of transmit/receive cycles spread over time and in order of decreasing duration of the transmit operations, beginning with the reader assigned the command instruction of the transmit/receive cycle having a greatest duration, a delay between executing one instruction and the next being equal to a difference between the durations of the transmit operations of the transmit/receive cycle command instructions to be transmitted by the corresponding two readers, up to executing the instruction associated with the shortest duration of the transmit operations.
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Accused Products
Abstract
Method and system for coordinated management of a plurality of contactless radio-frequency readers of chips incorporating electronic microcircuits. The method includes transmitting, in a first time interval, transmit operations composed of command instructions from each of the plurality of readers to the electronic microcircuits of the chips associated with each respective reader; and receiving, in a second time interval, receive operations composed of responses from the electronic microcircuits of the chips associated with each respective reader. The first and second time intervals do not overlap.
80 Citations
18 Claims
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1. A method for coordinated management of a plurality of contactless radio-frequency readers of chips incorporating electronic microcircuits, the method comprising:
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transmitting, in a first time interval, transmit operations composed of command instructions from each of the plurality of readers to the electronic microcircuits of the chips associated with each respective reader; and receiving, in a second time interval, receive operations composed of responses from the electronic microcircuits of the chips associated with each respective reader, wherein the first and second time intervals do not overlap, wherein each of the plurality of readers are active readers, whereby the active readers are synchronized to group their respective transmitting and receiving into distinct time intervals, and wherein a synchronization process includes; collecting durations of the transmit operations for sending the command instructions of first transmit/receive cycles of the active readers; and sending the active readers instructions to execute the transmit operations for sending the command instructions of transmit/receive cycles spread over time and in order of decreasing duration of the transmit operations, beginning with the reader assigned the command instruction of the transmit/receive cycle having a greatest duration, a delay between executing one instruction and the next being equal to a difference between the durations of the transmit operations of the transmit/receive cycle command instructions to be transmitted by the corresponding two readers, up to executing the instruction associated with the shortest duration of the transmit operations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A synchronization circuit for a plurality of contactless radio-frequency readers of chips incorporating electronic microcircuits adapted to implement a method including transmitting, in a first time interval, transmit operations composed of command instructions from each of the plurality of readers to the electronic microcircuits of the chips associated with each respective reader, and receiving, in a second time interval, receive operations composed of responses from the electronic microcircuits of the chips associated with each respective reader, such that the first and second time intervals do not overlap, and each of the plurality of readers are active readers, whereby the active readers are synchronized to group their respective transmitting and receiving into distinct time intervals, and such that a synchronization process includes collecting durations of the transmit operations for sending the command instructions of first transmit/receive cycles of the active readers, and sending the active readers instructions to execute the transmit operations for sending the command instructions of transmit/receive cycles spread over time and in order of decreasing duration of the transmit operations, beginning with the reader assigned the command instruction of the transmit/receive cycle having a greatest duration, a delay between executing one instruction and the next being equal to a difference between the durations of the transmit operations of the transmit/receive cycle command instructions to be transmitted by the corresponding two readers, up to executing the instruction associated with the shortest duration of the transmit operations, the synchronization circuit comprising:
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a microprocessor-based processing unit structured and arranged to effect the synchronization; and an interface circuit structured and arranged to be readily connectable to each of the readers of said plurality of readers. - View Dependent Claims (15, 16)
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17. A system of contactiess radio-frequency read/write readers of chips incorporating electronic microcircuits, comprising:
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a plurality of readers; a synchronization circuit being coupled to the plurality of readers and adapted to implement a synchronization of transmit/receive cycles of the plurality of readers to collect durations of the transmit operations for sending command instructions of first transmit/receive cycles of active readers, and to send the active readers instructions to execute transmit operations for sending the command instructions of transmit/receive cycles spread over time and in order of decreasing duration of the transmit operations, beginning with a reader assigned the command instruction of the transmit/receive cycle having a greatest duration, a delay between executing one instruction and the next being equal to a difference between the durations of the transmit operations of the transmit/receive cycle command instructions to be transmitted by the corresponding two readers, up to executing the instruction associated with a shortest duration of the transmit operations; and a microprocessor based central control unit structured and arranged to manage the synchronization circuit.
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18. A system of contactless radio-frequency read/write reader of chips incorporating electronic microcircuits, comprising:
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a plurality of readers; and a synchronization circuit structured and arranged to synchronize transmit/receive cycles of the readers to collect durations of the transmit operations for sending command instructions of first transmit/receive cycles of active readers, and to send the active readers instructions to execute transmit operations for sending the command instructions of transmit/receive cycles spread over time and in order of decreasing duration of the transmit operations, beginning with a reader assigned the command instruction of the transmit/receive cycle having a greatest duration, a delay between executing one instruction and the next being equal to a difference between the durations of the transmit operations of the transmit/receive cycle command instructions to be transmitted by the corresponding two readers, up to executing the instruction associated with a shortest duration of the transmit operations and including a clock signal switching device for switching from an internal timebase to a timebase of a central processing unit.
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Specification