Long range RFID transponder
First Claim
Patent Images
1. A radio frequency identification device (RFID) comprising in combination:
- (a) a piezoelectric crystal; and
(b) a passive magnetic field sensor having magnetostrictive material, said sensor being responsive to a magnetic field to displace said piezoelectric crystals to thereby generate electricity.
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Abstract
A radio frequency identification device includes a piezo-electric crystal and a passive magnetic field sensor having magnetostrictive material. The sensor is responsive to a magnetic field to displace piezo-electric material to thereby generate electricity to power the device.
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Citations
10 Claims
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1. A radio frequency identification device (RFID) comprising in combination:
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(a) a piezoelectric crystal; and (b) a passive magnetic field sensor having magnetostrictive material, said sensor being responsive to a magnetic field to displace said piezoelectric crystals to thereby generate electricity.
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2. A tire having a radio frequency identification device (RFID) mounted therein, said RFID adapted to receive, store and transmit data regarding said tire and its usage, said RFID comprising in combination:
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(a) a piezoelectric material; and (b) a passive magnetic field sensor having magnetostrictive material, said sensor being responsive to a magnetic field to displace said piezoelectric material to thereby generate electricity to power said RFID. - View Dependent Claims (3)
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4. A method for receiving, storing and transmitting data about an article comprising the steps of:
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(a) mounting on said article a radio frequency identification device (RFID) having in combination; (i) a piezoelectric material; and (ii) a passive magnetic field sensor having magnetostrictive material, said sensor being responsive to a magnetic field to displace said piezoelectric material to thereby generate electricity; (b) developing a magnetic field; (c) causing said magnetic field to activate said sensor thereby providing electric power to said RFID. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification