# US 2014/0197783 A1 · Apparatus and method for transmitting power and transceiving data using mutual resonance, and apparatus and method for receiving power and transceiving data using mutual resonance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197783 A1 - Document ID: US20140197783A1 - Status: Published application - Kind: A1 - Application number: 14/073,025 - Filed: 2013-11-06 - Published: 2014-07-17 - Earliest claimed: 2013-01-14 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Dong Zo KIM; Sang Wook KWON; Ki Young KIM; Nam Yun KIM; Bong Chul KIM; Yun Kwon PARK; Jae Hyun PARK; Keum Su SONG; Chi Hyung AHN; Young Ho RYU; Chang Wook YOON; Byoung Hee LEE - Web page: https://patentgrep.com/patent/US20140197783A1 ## CPC - H02J 7/44: between battery management systems and power sources - H02J 7/485: {with provisions for charging different types of batteries} - H02J 7/933: {the cycle being controlled or terminated in response to electric parameters} - H02J 50/12: of the resonant type - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - H02J 50/90: involving detection or optimisation of position, e.g. alignment - H01F 2038/143: {for signals} - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - Y02T 90/12: Electric charging stations - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An apparatus configured to transmit power, and transceive data, using mutual resonance, includes a power transmitter configured to wirelessly transmit power to a device, using a power transmission frequency as a resonant frequency. The apparatus further includes a communication unit configured to transceive data to and from the device, using a communication frequency as a resonant frequency. The apparatus further includes a controller configured to determine a charging state of the device based on the data received from the device, and control an amount of the power based on the charging state. ## Claims ### Claim 1 An apparatus configured to transmit power, and transceive data, using mutual resonance, the apparatus comprising: a power transmitter configured to wirelessly transmit power to a device, using a power transmission frequency as a resonant frequency; a communication unit configured to transceive data to and from the device, using a communication frequency as a resonant frequency; and a controller configured to determine a charging state of the device based on the data received from the device, and control an amount of the power based on the charging state. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the power transmitter comprises: a first frequency generating unit configured to generate the power transmission frequency; a first power amplifier (PA) configured to amplify an amplitude of a signal with the power transmission frequency; and a first source resonator configured to transmit power corresponding to the amplified amplitude, to a target resonator of the device that resonates at the power transmission frequency. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the communication unit comprises: a second frequency generating unit configured to generate the communication frequency; a second PA configured to amplify an amplitude of a signal with the communication frequency; a second source resonator configured to receive load-modulated data from a target resonator of the device that resonates at the communication frequency; and a demodulator configured to demodulate the load-modulated data based on a variation in the amplitude of the signal with the communication frequency in response to mutual resonance occurring between the second source resonator and the target resonator. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein: the communication unit further comprises a modulator configured to modulate data by changing a waveform of the signal with the communication frequency; and the second source resonator is configured to transmit the modulated data to the target resonator. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the communication frequency is greater than twice, or less than half, the power transmission frequency. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein: the power transmitter comprises a first source resonator configured to transmit the power to a first target resonator of the device that resonates at the power transmission frequency; the communication unit comprises a second source resonator configured to transceive the data to and from a second target resonator of the device that resonates at the communication frequency; the first source resonator comprises a higher quality factor than a quality factor of the second source resonator; and each of the first source resonator and the second source resonator comprises a shape of a loop. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein the second source resonator comprises the same shape of the loop as the shape of the loop of the first source resonator, comprises a same pattern line of the loop as a pattern line of the loop of the first source resonator, and is located within a predetermined distance from the first source resonator. ### Claim 8 (depends on 6) The apparatus of claim 6, further comprising: a filter configured to block the power transmission frequency of the first source resonator, to prevent a magnetic field from being induced from the first source resonator to the second source resonator. ### Claim 9 (depends on 6) The apparatus of claim 6, further comprising: a filter configured to pass the communication frequency of the second source resonator, to prevent a magnetic field from being induced from the first source resonator to the second source resonator. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein: the controller comprises a detector configured to detect whether the device exists based on whether the data is received; and the controller is configured to control the amount of the power so that wake-up power is transmitted until the device is detected to exist, and charging power is transmitted in response to the device being detected to exist. ### Claim 11 An apparatus configured to receive power, and transceive data, using mutual resonance, the apparatus comprising: a power receiver configured to wirelessly receive power from a device, using a power transmission frequency of the device as a resonant frequency; a communication unit configured to transceive data to and from the device, using a communication frequency of the device as a resonant frequency; and a controller configured to determine a charging state of a load, and determine the data to be transmitted to the device based on the charging state. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the power receiver comprises: a first target resonator configured to receive the power from a source resonator of the device that resonates at the power transmission frequency; a rectifier configured to rectify the power; a converter configured to convert a voltage level of the rectified power to a voltage level to charge the load; and a charging unit configured to charge the load by adjusting an amount of power with the converted voltage level based on the charging state. ### Claim 13 (depends on 11) The apparatus of claim 11, wherein the communication unit comprises: a second target resonator configured to transmit load-modulated data to a source resonator of the device that resonates at the communication frequency; and a modulator configured to perform load modulation on data by changing an impedance of the load in response to mutual resonance occurring between the second target resonator and the source resonator. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein: the second target resonator is configured to receive a communication signal from the source resonator; and the communication unit further comprises a demodulator configured to demodulate data based on a change in a waveform of the communication signal. ### Claim 15 (depends on 11) The apparatus of claim 11, wherein the communication unit is further configured to transmit a charging request of the load to the device in response to the controller being woken up by the power. ### Claim 16 (depends on 11) The apparatus of claim 11, wherein: the power receiver comprises a first target resonator configured to receive the power from a first source resonator of the device that resonates at the power transmission frequency; the communication unit comprises a second target resonator configured to transceive the data to and from a second source resonator of the device that resonates at the communication frequency; the first target resonator comprises a higher quality factor than a quality factor of the second target resonator; and each of the first target resonator and the second target resonator comprises a shape of a loop. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the second target resonator comprises the same shape of the loop as the shape of the loop of the first target resonator, comprises a same pattern line of the loop as a pattern line of the loop of the first target resonator, and is located within a predetermined distance from the first target resonator. ### Claim 18 (depends on 16) The apparatus of claim 16, further comprising: a filter configured to block the power transmission frequency of the first target resonator, or pass the communication frequency of the second target resonator, to prevent a magnetic field from being induced from the first target resonator to the second target resonator. ### Claim 19 A method of transmitting power, and transceiving data, using mutual resonance, the method comprising: wirelessly transmitting wake-up power from a power transmission resonator to a device, using a power transmission frequency as a resonant frequency; transmitting communication power from a communication resonator to the device, using a communication frequency as a resonant frequency, when the wake-up power is transmitted; determining a charging state of the device based on a change in an amplitude of the transmitted communication power; and controlling an amount of charging power to be transmitted to the device, using the power transmission frequency based on the charging state. ### Claim 20 (depends on 19) The method of claim 19, wherein: the determining of the charging state comprises determining whether the device exists based on the change in the amplitude of the transmitted communication power; and the method further comprises wirelessly transmitting the charging power from the power transmission resonator to the device, using the power transmission frequency, in response to the device being determined to exist. ### Claim 21 (depends on 19) The method of claim 19, wherein: the determining of the charging state comprises determining whether charging of the device is completed based on the change in the amplitude of the transmitted communication power; and the method further comprises interrupting transmission of the charging power to the device, in response to the charging of the device being determined to be completed. ### Claim 22 (depends on 19) The method of claim 19, wherein the transmitting of the wake-up power and the transmitting of the communication power is performed in response to a predetermined period of time elapsing. ### Claim 23 A method comprising: wirelessly transmitting wake-up power to an apparatus, using a power transmission frequency; wirelessly transmitting communication power to the apparatus, using a communication frequency; determining whether data is received from the apparatus; and wirelessly transmitting charging power to the apparatus, using the power transmission frequency, in response to the data being determined to be received. ### Claim 24 (depends on 23) The method of claim 23, further comprising: determining whether data indicating that charging of the apparatus is completed, is received from the apparatus; and interrupting the transmission of the charging power in response to the data indicating that the charging of the apparatus is completed being determined to be received.