Apparatus and method for compensating inductance in inductive coupling communications
AssigneeKorea Advanced Institute of Science and Technology
InventorsHoi-Jun Yoo, Jerald Yoo
Life of this patent
Estimating the term…
Abstract
There is provided an inductive coupling transmitting and receiving apparatus. An inductive coupling transmitting and receiving apparatus according to an embodiment of the present invention comprises an inductive coupling transceiver transmitting and/or receiving data; an inductor connected to the inductive coupling transceiver; and a resonance compensator connected to the inductive coupling transceiver and the inductor to compensate for a change in inductance of the inductor.
Claims8
An inductive coupling transmitting and receiving apparatus, comprising:
- an inductive coupling transceiver transmitting and/or receiving data;
- an inductor connected to the inductive coupling transceiver;
- and
- a resonance compensator connected to the inductive coupling transceiver and the inductor to compensate for a change in inductance of the inductor.
A resonance compensator in an inductive coupling transmitting and receiving apparatus, comprising:
- a capacitor bank comprising a plurality of unit capacitors, each of the capacitors being activated or non-activated;
- a decoder allowing the unit capacitors of the capacitor bank to be activated or non-activated;
- an oscillator oscillating at a certain frequency based on capacitance of the capacitor bank and inductance of the inductor;
- a phase-frequency detector comparing the frequency oscillated from the oscillator with a predetermined frequency;
- and
- an FSM controller controlling the decoder based on results detected by the phase-frequency detector.
A method for compensating for inductance in an inductive coupling transmitting and receiving apparatus comprising a variable capacitor, and inductor and a transceiver, comprising:
- comparing an oscillation frequency of an oscillator connected to the variable capacitor and the inductor with a predetermined reference frequency;
- and
- changing capacitance of the variable capacitance based on the frequency comparison result.
Dependencies are inferred from the claim text.