Near field wireless transmission/reception method and apparatus
First Claim
1. A data communication method of a near field wireless communication apparatus using magnetic coupling, the method comprising:
- generating, by a pulse generator, a first positive pulse signal corresponding to transmission digital data by outputting a positive pulse when the transmission digital data is “
1” and
not outputting a pulse when the transmission digital data is “
0”
;
driving a data transmission coupler only for a period in which the first positive pulse signal is the positive pulse, thereby transmitting the transmission digital data;
generating a positive-to-negative pulse signal in which a positive pulse and a negative pulse intersect, in response to signal reception in a data reception coupler;
comparing a reference value with the positive-to-negative pulse signal to change the positive-to-negative pulse signal to a second positive pulse signal; and
demodulating the second positive pulse signal to reception digital data,wherein demodulating the second positive pulse signal to the reception digital data comprises;
toggling, by a first delay flip-flop, the second positive pulse signal to generate a toggling signal,sampling, by a second delay flip-flop, the toggling signal to generate a sampling signal,delaying, by a third delay flip-flop, the sampling signal to generate a delay signal, andconducting an XOR operation for the sampling signal and the delay signal to output the reception digital data.
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Accused Products
Abstract
Provided is a near field wireless communication apparatus that uses magnetic coupling and a method for operation of the apparatus, in which the magnetic coupling is used to transmit data or clock information with low power and high efficiency. A pulse generator of the near field wireless communication apparatus generates a pulse signal corresponding to transmission digital data to be transmitted. When the transmission digital data is “1,” the near field wireless communication apparatus modulates the data into the pulse signal and transmits the pulse signal. When the data is “0,” the near field wireless communication apparatus does not output the pulse.
24 Citations
10 Claims
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1. A data communication method of a near field wireless communication apparatus using magnetic coupling, the method comprising:
-
generating, by a pulse generator, a first positive pulse signal corresponding to transmission digital data by outputting a positive pulse when the transmission digital data is “
1” and
not outputting a pulse when the transmission digital data is “
0”
;driving a data transmission coupler only for a period in which the first positive pulse signal is the positive pulse, thereby transmitting the transmission digital data; generating a positive-to-negative pulse signal in which a positive pulse and a negative pulse intersect, in response to signal reception in a data reception coupler; comparing a reference value with the positive-to-negative pulse signal to change the positive-to-negative pulse signal to a second positive pulse signal; and demodulating the second positive pulse signal to reception digital data, wherein demodulating the second positive pulse signal to the reception digital data comprises; toggling, by a first delay flip-flop, the second positive pulse signal to generate a toggling signal, sampling, by a second delay flip-flop, the toggling signal to generate a sampling signal, delaying, by a third delay flip-flop, the sampling signal to generate a delay signal, and conducting an XOR operation for the sampling signal and the delay signal to output the reception digital data. - View Dependent Claims (2, 3, 4, 5)
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6. A near field wireless communication apparatus using magnetic coupling, the apparatus comprising:
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a data transmission coupler; a pulse generator configured to output a positive pulse when transmission digital data is “
1” and
to not output a pulse when the transmission digital data is “
0,”
thereby generating a first positive pulse signal corresponding to the transmission digital data;a driver configured to drive a data transmission coupler only for a period in which the first positive pulse signal is the positive pulse, thereby transmitting the transmission digital data; a data reception coupler configured to output a positive-to-negative pulse signal generated in response to signal reception; a comparator configured to compare the positive-to-negative pulse signal with a reference value and to change the positive-to-negative pulse signal to a second positive pulse signal, thereby outputting the second positive pulse signal; and a demodulator configured to demodulate the second positive pulse signal to reception digital data, wherein the positive-to-negative pulse signal is a signal in which a positive pulse and a negative pulse intersect, and wherein the demodulator comprises; a first delay flip-flop configured to toggle the second positive pulse signal to output a toggling signal, a second delay flip-flop configured to sample the toggling signal to output a sampling signal, a third delay flip-flop configured to delay the sampling signal to output a delay signal, and an exclusive OR gate configured to conduct an XOR operation for the sampling signal and the delay signal to output the reception digital data. - View Dependent Claims (7, 8, 9, 10)
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Specification