Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-06-30
1997-04-15
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34082531, 342 51, 342 42, 342 44, H03L 300
Patent
active
056213964
ABSTRACT:
A method and apparatus with adaptive transponder plucking is provided in which oscillations from a resonant circuit (12 and 14) are maintained by coupling power from a capacitor (18) through a switch (26) to the resonant circuit (12 and 14). The switch (26) is controlled by adaptive pluck circuitry. The adaptive pluck circuitry includes peak level detector (22) and comparator (24). When the peak level of an oscillating signal from the resonant circuit (12 and 14) falls below a reference voltage, the switch (26) is activated to couple power to the resonant circuit (12 and 14).
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Donaldson Richard L.
Horabik Michael
Kesterson James C.
Mapstone Rebecca A.
Texas Instruments Incorporated
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