Active/passive RFID transponder control function
First Claim
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1. An RFID transponder comprising:
- a transponder substrate;
a microprocessor associated with the substrate;
an antenna associated with the substrate;
nonvolatile memory associated with the microprocessor,wherein the nonvolatile memory stores an identity of the RFID transponder; and
a battery associated with the substrate;
wherein the microprocessor is configured to operate in a passive mode and in a battery powered mode, the passive mode involving microprocessor operations where portions of the microprocessor remain in a quiescent low power state to reduce the amount of energy needed to power the microprocessor,wherein, when in the passive mode, the microprocessor is configured to write instructions to nonvolatile memory for operating the RFID transponder in battery powered mode,wherein power for the microprocessor in the passive mode is received through the antenna andwherein power for the microprocessor in the battery powered mode is received from a battery.
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Abstract
Devices, systems, processes, and articles of manufacture are provided herein. These may include an RFID transponder having a microprocessor, nonvolatile memory, a battery, and an antenna, wherein the microprocessor is configured to operate in a passive mode and a battery operated mode, and wherein, when in the passive mode only a portion of the microprocessor may be powered by energy received from an RFID reader interrogating the RFID transponder. The RFID transponder may further include MEMS sensors coupled to the microprocessor and the microprocessor may be further configured to add physical data, instructions, or a unique identifier of the RFID transponder to the nonvolatile memory.
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Citations
24 Claims
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1. An RFID transponder comprising:
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a transponder substrate; a microprocessor associated with the substrate; an antenna associated with the substrate; nonvolatile memory associated with the microprocessor, wherein the nonvolatile memory stores an identity of the RFID transponder; and a battery associated with the substrate; wherein the microprocessor is configured to operate in a passive mode and in a battery powered mode, the passive mode involving microprocessor operations where portions of the microprocessor remain in a quiescent low power state to reduce the amount of energy needed to power the microprocessor, wherein, when in the passive mode, the microprocessor is configured to write instructions to nonvolatile memory for operating the RFID transponder in battery powered mode, wherein power for the microprocessor in the passive mode is received through the antenna and wherein power for the microprocessor in the battery powered mode is received from a battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for controlling an RFID transponder, the method comprising:
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receiving an interrogation radio frequency signal at an antenna of an RFID transponder; activating a portion of a microprocessor using power from the interrogation radio frequency signal, with one or more other portions of the microprocessor remaining in a quiescent low power state to reduce the amount of energy needed to power the microprocessor; receiving information to be written to a nonvolatile memory of the RFID transponder; and writing the information to the nonvolatile memory of the RFID transponder, wherein the information written includes data, which when read, provides instructions for operating the RFID transponder in a battery powered mode, wherein power is received from a battery for one or more portions of the microprocessor remaining in a quiescent low power state. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. An article of manufacture comprising:
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a non-volatile computer readable storage medium, the storage medium containing instructions, which when executed, cause a microprocessor of an RFID transponder, when receiving data from an RFID reader/writer, to operate in a passive mode or in a battery powered mode, the passive mode and the battery powered mode each providing that portions of the microprocessor remain in a quiescent low power state to reduce the amount of energy needed to power the microprocessor, the passive mode being used to write instructions in nonvolatile memory of the RFID transponder that control functions of the RFID transponder when the RFID transponder is operating in battery powered mode, wherein power for the microprocessor in the passive mode is received through an antenna, and wherein power for the microprocessor in the battery powered mode is received from a battery. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification