Powering and reading implanted devices
First Claim
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1. A radio frequency identification reader device, comprising:
- a primary radio frequency source structured to output primary radio frequency energy in a form wherein the primary radio frequency energy comprises a plurality of radio frequency bursts, each consecutive pair of the radio frequency bursts being separated by an associated time interval;
a supplemental radio frequency source structured to output secondary continuous wave radio frequency energy in between each of the radio frequency bursts of the primary radio frequency energy during at least a portion of each of the associated time intervals; and
control circuitry structured to detect an end of each of the radio frequency bursts and responsive to each detection cause the supplemental radio frequency source to output the secondary continuous wave radio frequency energy during at least a part of the time interval associated with the radio frequency burst.
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Abstract
A method of providing RF energy to a wireless transponder device includes outputting primary RF energy in a form wherein the primary RF energy comprises a plurality of RF bursts, with each consecutive pair of the RF bursts being separated by an associated time interval, and outputting secondary continuous wave RF energy in between each of the RF bursts of the primary RF energy during at least a portion of each of the associated time intervals. Also, a reader device implementing this method.
11 Citations
16 Claims
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1. A radio frequency identification reader device, comprising:
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a primary radio frequency source structured to output primary radio frequency energy in a form wherein the primary radio frequency energy comprises a plurality of radio frequency bursts, each consecutive pair of the radio frequency bursts being separated by an associated time interval; a supplemental radio frequency source structured to output secondary continuous wave radio frequency energy in between each of the radio frequency bursts of the primary radio frequency energy during at least a portion of each of the associated time intervals; and control circuitry structured to detect an end of each of the radio frequency bursts and responsive to each detection cause the supplemental radio frequency source to output the secondary continuous wave radio frequency energy during at least a part of the time interval associated with the radio frequency burst. - View Dependent Claims (2, 3, 4, 5)
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6. A method of providing radio frequency energy to a wireless transponder device, comprising:
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outputting primary radio frequency energy in a form wherein the primary radio frequency energy comprises a plurality of radio frequency bursts, each consecutive pair of the radio frequency bursts being separated by an associated time interval; outputting secondary continuous wave radio frequency energy in between each of the radio frequency bursts of the primary radio frequency energy during at least a portion of each of the associated time intervals; and detecting an end of each of the radio frequency bursts and responsive to each detection causing the secondary continuous wave radio frequency energy to be output during at least a part of the time interval associated with the radio frequency burst. - View Dependent Claims (7, 8)
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9. A method of reading a sensor device associated with a wireless transponder device structured and configured to be read by a radio frequency identification reader device, comprising:
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receiving in the wireless transponder device an output of the sensor device, the output having a transient response portion followed by a steady state portion; and determining in the wireless transponder device a reading for the sensor device based on the transient response portion and not the steady state portion of the output, wherein the wireless transponder device is structured and configured to communicate the determined reading for the sensor device to the radio frequency identification reader device. - View Dependent Claims (10, 11, 12)
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13. A wireless transponder device structured and configured to be read by a radio frequency identification reader device, comprising:
electronic circuitry structured to;
(i) receive an output of a sensor device associated with the wireless transponder device, the output having a transient response portion followed by a steady state portion, and (ii) determine a reading for the sensor device based on the transient response portion and not the steady state portion of the output, wherein the wireless transponder device is structured and configured to communicate the determined reading for the sensor device to the radio frequency identification reader device.- View Dependent Claims (14, 15, 16)
Specification