System and method for optimizing power usage in a radio frequency communication device
First Claim
Patent Images
1. An RF transponder, comprising:
- an antenna operable to receive RF signals from an interrogator and communicate information back to said interrogator;
a power source; and
, a signal processing circuit in communication with said antenna and said power source, comprising means for switching between a low current operating mode and a high current operating mode.
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Abstract
A radio frequency (RF) communication device is provided comprising means for switching between a low current operating mode and a high current operating mode. The low current operating mode is optimized to conserve power while the RF device is awaiting a wake-up signal from an interrogator. The high current operating mode is optimized to provide antenna matching during backscatter communications so as to maximize the range of backscatter communication between the RF device and the interrogator. Further provided, is a system and method for optimizing power consumption and backscatter range within an RF communication device.
68 Citations
20 Claims
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1. An RF transponder, comprising:
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an antenna operable to receive RF signals from an interrogator and communicate information back to said interrogator;
a power source; and
,a signal processing circuit in communication with said antenna and said power source, comprising means for switching between a low current operating mode and a high current operating mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for optimizing power consumption in an RF transponder comprising:
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providing an RF transponder comprising an antenna and a power source; and
, providing a signal processing circuit in communication with said antenna and said power source, comprising means for switching between a low current operating mode and a high current operating mode in response to a signal received from an interrogator;
wherein the signal processing circuit operates in said low current operating mode to conserve power while awaiting a wake-up signal from an interrogator, and when a wake-up signal is received by the antenna and processed by the signal processing circuit the signal processing circuit switches to said high current operating mode. - View Dependent Claims (19, 20)
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Specification