Inductive-coupling system and method with compensation to prevent interference
First Claim
Patent Images
1. A transmitting circuit for transmitting data with the use of electromagnetic induction generated by driving an inductor, comprising:
- a driving circuit comprising;
an outgoing signal compensation unit that receives outgoing data, compensates wave distortion of the outgoing data generated from a self-resonance of the inductor and generates a compensated outgoing data, and outputs the compensated outgoing data; and
a driving unit that receives that receives the compensated outgoing data whose data rate is higher than a self-resonant frequency of the inductor, and outputs an outgoing signal that drives the inductor at the data rate of the outgoing data,wherein the outgoing compensation unit compensates the wave distortion of the outgoing data based on compensation coefficients determined by a feedback equalizing process on a output waveform of the driving circuit.
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Abstract
A transmitting circuit that includes a driving circuit that drives an inductor to transmit data to a semiconductor chip insulated from a semiconductor chip on which the transmitting circuit is mounted. The driving circuit receives an outgoing data, compensates wave distortion of the outgoing data generated from the self-resonance of the inductor, generates a compensated outgoing data, and outputs the compensated outgoing data to drive the inductor, such that the outgoing data is transmitted at a data rate higher than the self-resonant frequency of the inductor.
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Citations
17 Claims
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1. A transmitting circuit for transmitting data with the use of electromagnetic induction generated by driving an inductor, comprising:
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a driving circuit comprising; an outgoing signal compensation unit that receives outgoing data, compensates wave distortion of the outgoing data generated from a self-resonance of the inductor and generates a compensated outgoing data, and outputs the compensated outgoing data; and a driving unit that receives that receives the compensated outgoing data whose data rate is higher than a self-resonant frequency of the inductor, and outputs an outgoing signal that drives the inductor at the data rate of the outgoing data, wherein the outgoing compensation unit compensates the wave distortion of the outgoing data based on compensation coefficients determined by a feedback equalizing process on a output waveform of the driving circuit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A receiving circuit for receiving an outgoing signal generated by electromagnetic induction with the use of an inductor, comprising:
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a determination circuit comprising; an incoming signal compensation unit that compensates wave distortion of an incoming signal generated from a self-resonance of the inductor, and generates a compensated incoming signal; and a determination unit that outputs incoming data at a data rate higher than a self-resonant frequency of the inductor after determining a logic level of outgoing data from the compensated incoming signal, wherein the incoming signal compensation unit compensates the wave distortion of the outgoing data based on compensation coefficients determined by a feedback equalizing process on the outgoing data output by the determination unit and an incoming signal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A communication system comprising:
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a transmission line that includes a first inductor and a second inductor that are electromagnetically coupled with each other; a driving circuit that drives the first inductor based on a received outgoing data; and a determination circuit that generates incoming data based on an incoming signal input via the second inductor, wherein the driving circuit and the determination circuit transmit the outgoing data at a data rate higher than self-resonant frequencies of the first and second inductors, wherein one of the driving circuit and the determination circuit comprises; a compensation unit that compensates wave distortion generated on the transmission line at a rate equivalent to the data rate based on compensation coefficients determined by a feedback equalizing process on a output waveform of the driving circuit. - View Dependent Claims (17)
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Specification