Apparatus and method for data communication using wireless power
First Claim
Patent Images
1. A data communication apparatus using wireless power, the apparatus comprising:
- a power signal detecting unit configured to detect a signal corresponding to a change in an impedance of a target device;
a demodulating unit configured to demodulate a message, which is modulated by the target device onto a carrier wave transmitted by the apparatus, using the detected signal, wherein the demodulating unit comprisesa phase mixing unit configured to generate a first mixed signal by mixing a first signal corresponding to the detected signal and a signal that is in chase with the carrier wave, anda comparing unit configured to co are the first mixed signal and a reference signal; and
a source resonator configured to transmit the carrier wave wirelessly to the target device,wherein the demodulating unit mixes the detected signal and the signal that is in phase with the carrier wave.
1 Assignment
0 Petitions
Accused Products
Abstract
According to one general aspect, a data communication apparatus using wireless power may include: a power signal detecting unit configured to detect a signal corresponding to a change in an impedance of a target device; a demodulating unit configured to demodulate a message from the target device from the detected signal using the detected signal and a carrier wave; and a source resonance unit configured to transmit the carrier wave to the target device.
-
Citations
27 Claims
-
1. A data communication apparatus using wireless power, the apparatus comprising:
-
a power signal detecting unit configured to detect a signal corresponding to a change in an impedance of a target device; a demodulating unit configured to demodulate a message, which is modulated by the target device onto a carrier wave transmitted by the apparatus, using the detected signal, wherein the demodulating unit comprises a phase mixing unit configured to generate a first mixed signal by mixing a first signal corresponding to the detected signal and a signal that is in chase with the carrier wave, and a comparing unit configured to co are the first mixed signal and a reference signal; and a source resonator configured to transmit the carrier wave wirelessly to the target device, wherein the demodulating unit mixes the detected signal and the signal that is in phase with the carrier wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A data communication apparatus using wireless power, the apparatus comprising:
-
a target resonance unit configured to wirelessly receive a carrier wave from a source device; a modulating unit configured to modulate a message onto the received carrier wave based upon an impedance mismatching between the source device and a target device of the data communication apparatus; and a controller configured to control the impedance mismatching by changing the impedance of the target device, wherein the modulating unit modulates the message to be demodulated at the source device based on mixing of a signal corresponding to a change in an impedance of the target device and a signal that is in phase with the carrier wave, and wherein the demodulating of the message comprises generating a first mixed signal by mixing a first signal corresponding to the detected signal and the signal that is in phase with the carrier wave, comparing the first mixed signal and a reference signal, and outputting a value based on the comparison. - View Dependent Claims (17, 18, 19)
-
-
20. A data communication method executed by a source device using wireless power, the method comprising:
-
transmitting a carrier wave wirelessly to a target device; detecting a signal corresponding to a change in an impedance of the target device; and demodulating a message, which is modulated by the target device onto the carrier wave transmitted by the source device, using the detected signal, wherein the demodulating comprises generating a first mixed signal by mixing a first signal corresponding to the detected signal and a signal that is in phase with the carrier wave, comparing the first mixed signal and a reference signal, and outputting a value based on the comparison, and wherein the demodulating comprises mixing the detected signal and the signal that is in phase with the carrier wave. - View Dependent Claims (21, 22, 23, 24, 25)
-
-
26. A data communication method executed by a target device using wireless power, the method comprising:
-
receiving a carrier wave wirelessly from a source device; modulating a message onto the received carrier wave based upon an impedance mismatching between the source device and the target device; and controlling the impedance mismatching by changing an impedance of the target device, wherein the modulating comprises modulating the message to be demodulated at the source device based on mixing of a signal corresponding to a change in an impedance of the target device and a signal that is in phase with the carrier wave, and wherein the demodulating of the message comprises generating a first mixed signal by mixing a first signal corresponding to the detected signal and the signal that is in phase with the carrier wave, comparing the first mixed signal and a reference signal, and outputting a value based on the comparison. - View Dependent Claims (27)
-
Specification