Very low power active RFID receiver
First Claim
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1. A receiver that includes a first module for receiving a first signal and coupling a developed signal to a signal-utilization port adapted for connection to an alarm device, characterized by:
- said first module includes a port for controlling operational state of the first module, where said operational state of said first module is either active or inactive and where said first module consumes significantly less power when inactive than when active; and
a second module for receiving a second signal, where the second module develops a signal and couples the developed signal to said signal-utilization port, and also develops a control signal, which control signal is coupled to said port and causes said first module to be in said inactive state when said second module is successful in receiving said second signal and in said active state when said second module is unsuccessful in receiving said second signal.
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Abstract
A receiver includes two receiving modules, where the first receiving module is extremely parsimonious on battery power and as long as it is successful in developing a proper output signal at a given port maintains the second receiving module off, or substantially off. When the signal output of the first module drops below a preselected output, the second receiving module is enabled to develop and apply an output signal to the given port.
18 Citations
15 Claims
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1. A receiver that includes a first module for receiving a first signal and coupling a developed signal to a signal-utilization port adapted for connection to an alarm device, characterized by:
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said first module includes a port for controlling operational state of the first module, where said operational state of said first module is either active or inactive and where said first module consumes significantly less power when inactive than when active; and a second module for receiving a second signal, where the second module develops a signal and couples the developed signal to said signal-utilization port, and also develops a control signal, which control signal is coupled to said port and causes said first module to be in said inactive state when said second module is successful in receiving said second signal and in said active state when said second module is unsuccessful in receiving said second signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification