Method and system for miniature passive RFID tags and readers
First Claim
1. An asymmetric bandwidth communication system comprising:
- a. a powered interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
b. a transponder or tag receiving said non-pulsed ultra wideband signal to at least partially or wholly power said tag;
c. said non-pulsed ultra wideband downlink transmission from said interrogator/reader instructing said transponder to broadcast data;
d. said transponder uplink communicating with said interrogator/reader using time domain carrierless impulse radio (pulsed ultra wideband) having ultra wide band width frequency spectrum of a short time duration pulse; and
e. said powered interrogator/reader receiving the pulsed ultra wideband ultra wide band short time duration pulse uplink communication;
whereby data is communicated from said transponder or tag to the said interrogator/reader using very little transponder power and an uncomplicated, low cost transponder design that is easily manufactured.
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Abstract
This invention makes possible small size, long range, reliable, low-power, low-cost RFIDs fulfilling the needs of the industry and the roadmap set for RFID, as by Walmart and the DoD. Tag energization and data communication take place by independent means. The invention employs low-power communication means, such as ultra wideband (UWB), for transfer of data between Tag and Reader, and relatively high power narrowband means to remotely energize the Tag. Said means of powering and communication mechanisms, further, are independent of the underlying process, or technology, of implementation of the Microchip on the Tag, as well as from the transceiver technology aboard the Reader. As such, they provide an ideal method and system by which to power and communicate with RFIDs, through cycles of evolution and changes in physical implementation technology.
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Citations
50 Claims
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1. An asymmetric bandwidth communication system comprising:
- a. a powered interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
b. a transponder or tag receiving said non-pulsed ultra wideband signal to at least partially or wholly power said tag;
c. said non-pulsed ultra wideband downlink transmission from said interrogator/reader instructing said transponder to broadcast data;
d. said transponder uplink communicating with said interrogator/reader using time domain carrierless impulse radio (pulsed ultra wideband) having ultra wide band width frequency spectrum of a short time duration pulse; and
e. said powered interrogator/reader receiving the pulsed ultra wideband ultra wide band short time duration pulse uplink communication;
whereby data is communicated from said transponder or tag to the said interrogator/reader using very little transponder power and an uncomplicated, low cost transponder design that is easily manufactured.
- a. a powered interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
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7. An asymmetric bandwidth communication system comprising:
- a. a powered interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
b. a transponder or tag receiving said non-pulsed ultra wideband signal to wholly power said tag;
c. said non-pulsed ultra wideband downlink transmission from said interrogator/reader instructing said transponder to broadcast data;
d. said transponder uplink communicating by a second antenna with said interrogator/reader using time domain carrierless impulse radio (pulsed ultra wideband) having ultra wide band width frequency spectrum and a short time duration pulse; and
e. said powered interrogator/reader receiving the pulsed ultra wideband ultra wide band short time duration pulse uplink communication;
whereby data is communicated from said transponder or tag to the said interrogator/reader using very little transponder power and an uncomplicated low cost transponder design that is easily manufactured.
- a. a powered interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
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8. An asymmetric bandwidth communication apparatus, comprising at least one Time-Domain Carrierless Impulse Radio (pulsed ultra wideband) transmitter and at least one non-pulsed ultra wideband receiver.
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17. An asymmetric bandwidth communication apparatus, comprising at least one non-pulsed ultra wideband transmitter and at least one pulsed ultra wideband receiver.
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26. An asymmetric bandwidth communication system comprising:
- a. a powered interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
b. a transponder or tag receiving said non-pulsed ultra wideband signal to at least partially or wholly power said tag;
c. said non-pulsed ultra wideband downlink transmission from said interrogator/reader instructing said transponder to broadcast data;
d. said transponder uplink communicating with said interrogator/reader using time domain carrierless impulse radio (pulsed ultra to wideband) having ultra wide band width frequency spectrum of a short time duration pulse; and
e. said powered interrogator/reader receiving the pulsed ultra wideband ultra wide band short time duration pulse uplink communication;
whereby data is communicated from said transponder or tag to the said interrogator/reader using very little transponder power and an uncomplicated, low cost transponder design that is easily manufactured. - View Dependent Claims (2, 3, 4, 5, 6, 27, 28, 29, 30, 31)
- a. a powered interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
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32. An asymmetric bandwidth communication system comprising:
- a. a powered is interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
b. a transponder or tag receiving said non-pulsed ultra wideband signal to wholly power said tag;
c. said non-pulsed ultra wideband downlink transmission from said interrogator/reader instructing said transponder to broadcast data;
d. said transponder uplink communicating by a second antenna with said interrogator/reader using time domain carrierless impulse radio (pulsed ultra wideband) having ultra wide band width frequency spectrum and a short time duration pulse; and
e. said powered interrogator/reader receiving the pulsed ultra wideband ultra wide band short time duration pulse uplink communication;
whereby data is communicated from said transponder or tag to the said interrogator/reader using very little transponder power and an uncomplicated low cost transponder design that is easily manufactured.
- a. a powered is interrogator/reader downlink transmitting in a non-pulsed ultra wideband signal;
- 33. An asymmetric bandwidth communication apparatus, comprising at least one Time-Domain Carrierless Impulse Radio (pulsed ultra wideband) transmitter and at least one non-pulsed ultra wideband receiver.
- 42. An asymmetric bandwidth communication apparatus, comprising at least one non-pulsed ultra wideband transmitter and at least one pulsed ultra wideband receiver.
Specification