H - Electricity
03
J
340/142, 365/37
H03J 7/16 (2006.01) B60C 23/04 (2006.01)
Patent
CA 1235238
RADIO CIRCUIT Abstract A system and method for adjusting the frequency of operation of a radio frequency circuit including an inductive loop having an ad- justable exposed inductor portion is provided. The frequency of operation of the circuit is first detected with means for detecting a parameter relating to and representing the frequency of operation. The adjustable inductor portion is associated with a selectively movable actuator device coupled to the frequency detecting means and a source of signals representing a predetermined frequency of oper- ation for the circuit. A control circuit means, preferrably a com- puter, is coupled to the detecting means and to the source of sig- nals to provide an output control signal when the detected fre- quency of operation bears a predetermined relationship to the pre- determined frequency of operation. The control signal operates the actuator device to adjust the configuration of the exposed inductor portion by moving the actuator device whereby the inductance of the inductive loop and the frequency of operation are associatively varied. The configuration of the inductor portion is fixed at a position of adjustment determining the frequency of operation to be at the predetermined frequency.
440630
Benincasa Timothy C.
Snyder Daniel S.
Imperial Clevite Inc.
Marcoux & Sher Swabey Mitchell Houle
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