Electronic tags
First Claim
1. An electronic tag comprising electronic circuitry incorporating a microprocessor, a non-volatile memory associated with the microprocessor such that the microprocessor can write data to the non-volatile memory, a sensing transducer connected to the microprocessor, and an interface for interrogation of the non-volatile memory, the sensing transducer being such as to output an electrical signal in response to an event of a pre-selected type and the microprocessor being programmed to log signals from the sensing transducer to the non-volatile memory to produce a record of the selected event and being arranged to be powered by the electrical output signal from the sensing transducer.
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Accused Products
Abstract
The present invention discloses an electronic tag comprising electronic circuitry incorporating a microprocessor (44), a non-volatile memory associated with the microprocessor (44) such that the microprocessor (44) can write data to the non-volatile memory, a sensing transducer (54) connected to the microprocessor (44), and an interface (30) for interrogation of the non-volatile memory, the sensing transducer (54). being such as to output an electrical signal in response to an event of a pre-selected type, the microprocessor (44) being programmed to log signals from the sensing transducer (54) to the non-volatile memory to produce a record of the selected event and being arranged to be powered by the electrical output signal from the sensing transducer (54).
21 Citations
19 Claims
- 1. An electronic tag comprising electronic circuitry incorporating a microprocessor, a non-volatile memory associated with the microprocessor such that the microprocessor can write data to the non-volatile memory, a sensing transducer connected to the microprocessor, and an interface for interrogation of the non-volatile memory, the sensing transducer being such as to output an electrical signal in response to an event of a pre-selected type and the microprocessor being programmed to log signals from the sensing transducer to the non-volatile memory to produce a record of the selected event and being arranged to be powered by the electrical output signal from the sensing transducer.
- 14. An electronic tag comprising electronic circuitry incorporating a transducer, a non-volatile memory, a control, and an interface through which the tag can be interrogated, wherein the transducer is such as to output an electrical signal in response to an event of a pre-selected type and is connected to the control such that the electrical signal produced in response to the event powers the control in logging the event to the non-volatile memory, thereby providing a record of the event.
Specification