KR20110134970A - Apparatus and method inducing wireless power receiver to power transmission area - Google Patents
Apparatus and method inducing wireless power receiver to power transmission area Download PDFInfo
- Publication number
- KR20110134970A KR20110134970A KR1020100054630A KR20100054630A KR20110134970A KR 20110134970 A KR20110134970 A KR 20110134970A KR 1020100054630 A KR1020100054630 A KR 1020100054630A KR 20100054630 A KR20100054630 A KR 20100054630A KR 20110134970 A KR20110134970 A KR 20110134970A
- Authority
- KR
- South Korea
- Prior art keywords
- wireless power
- power transmission
- band
- transmission area
- receiver
- Prior art date
Links
Images
Landscapes
- Near-Field Transmission Systems (AREA)
Abstract
Description
TECHNICAL FIELD The art relates to an apparatus and method for inducing a wireless power receiver.
The research on wireless power transmission began to overcome the inconvenience of wired power supply due to the explosive increase of various electric devices including mobile devices, and the limitation of existing battery capacity.
However, in the wireless power transmission system, the reception of power decreases as the distance between the power transmitter and the power receiver increases, and when the transmission / reception period becomes longer than a specific distance, power transmission and reception and data communication become almost impossible. . Therefore, when the power receiver is located outside the power transmission / reception area (hereinafter, referred to as a “transmission area”), wireless power transmission is impossible.
In one aspect, the wireless power receiver in the wireless power transmission system guided to the power transmission area based on whether or not receiving data through the in-band (In-Band) communication with the wireless power transmission device power transmission area of the wireless power transmission device. Recognizing unit that is located outside, the position determining unit-in band that determines the current position through the out-of-band communication with the AP (AP) when it is located outside the power transmission area resonates A frequency band identical to a frequency band, and an out-of-band means a separate frequency band, not a resonant frequency band, an information transmitter for transmitting the information on the current location to the wireless power transmitter through the out-off band communication; It includes a power transmission area induction unit for indicating the degree of induction as induced in the power transmission area of the wireless power transmission apparatus. .
In the out-of-band communication with the api, the position determining unit determines a position using a positioning technique including a time difference of arrival (DOA), a direction of arrival (DOA), a received signal strength indicator (RSSI) method, and the like. can do.
The information transmitter may transmit a signal for requesting induction to a power transmission area of the wireless power transmitter and information on time synchronization with the wireless power transmitter.
The information transmitter may transmit authentication information necessary for receiving wireless power from the wireless power transmitter.
The power transmission area induction unit may display information on a direction and a distance from the wireless power transmission device on a screen (display) according to the guidance signal of the wireless power transmission device.
The power transmission area induction part may move in response to an induction signal of the wireless power transmitter, and there may be a difference in a signal sound generated according to a distance difference from the wireless power transmitter.
In another aspect, the wireless power receiver to the power transmission area in the wireless power transmission system receives data at high speed through the out of band communication, even if in-band communication is possible by the induction of the wireless power transmission device The apparatus may further include a high speed data receiver.
According to another aspect, the wireless power receiving apparatus guided to the power transmission area in the wireless power transmission system, even if located in the power transmission area by the induction of the wireless power transmission device, if an error occurs in the power transmission through the in-band The apparatus may further include an error report unit that reports an error through the of band communication.
In one aspect, a wireless power transmitter for guiding a power transmission area in a wireless power transmission system (wireless power receiver) is an information receiver for receiving location information of the wireless power receiver through out of band communication from the wireless power receiver And a transmission area inducing unit for guiding the wireless power receiver to a power transmission area through the out of band communication based on the position information, and determining whether the wireless power receiver is guided to the power transmission area to enable in-band communication. And a power transmitter for transmitting power to the wireless power receiver through the in-band when the in-band communication is possible.
The power transmitter may transmit high speed data to the wireless power receiver through the out of band even when data communication is possible through the in band.
The information receiver may receive an error report through the out-of-band communication from the wireless power receiver when an error occurs in the power transmission through the in-band even when the wireless power receiver is located in the power transmission region due to the transmission area induction. Can be.
In another aspect, the wireless power transmitter for guiding the power transmission area in the wireless power transmission system (wireless power receiver) may further include a moving unit moving through the moving object based on the received position information.
In one aspect, a wireless power reception method guided to a power transmission area in a wireless power transmission system is outside the power transmission area of the wireless power transmitter based on whether data is received through in-band communication with the wireless power transmitter. Recognizing the location of the mobile terminal; and recognizing the location of the mobile device through out-of-band communication with the AP when the mobile device is located outside the power transmission area. Out of band means a separate frequency band, not a resonant frequency band, and transmitting the information on the current location to the wireless power transmission apparatus through the out-off band communication and the wireless power transmission apparatus of Inducing the degree of induction as it is guided to the power transmission area.
The transmitting of the information on the current location may transmit authentication information necessary for receiving wireless power from the wireless power transmitter.
In another aspect, a wireless power reception method guided to a power transmission area in a wireless power transmission system may include receiving data at high speed through out-of-band communication even when in-band communication is possible by induction of the wireless power transmitter. It may further include.
In another aspect, the wireless power reception method guided to the power transmission area in the wireless power transmission system, even if located in the power transmission area by the induction of the wireless power transmission apparatus, if an error occurs in the power transmission through the in-band out of The method may further include reporting an error through band communication.
In one aspect, a wireless power transmission method for guiding a power transmission area in a wireless power transmission system (wireless power receiver) includes receiving location information of the wireless power receiver through out-of-band communication from a wireless power receiver, Inducing the wireless power receiver to a power transmission area through the out of band communication based on location information, determining whether the wireless power receiver is induced to the power transmission area to enable in-band communication and the in If band communication is possible, the method may include transmitting power to the wireless power receiver through the in-band.
In the transmitting of the power, even when data communication is possible through the in-band, high-speed data may be transmitted to the wireless power receiver through the out of band.
Receiving the location information may be performed through out-of-band communication from the wireless power receiver when an error occurs in the power transmission through the in-band even when the wireless power receiver is located in the power transmission region due to the transmission area induction. You can report errors.
Out-of-band when the power receiver is located in the area where power and in-band data communication is impossible by using the wireless power transmitter that leads to the transmission area in the wireless power transmission system. By using the communication module to allow the power receiving device to move into the power transmission area, it is possible to widen the power transmission range.
In-band data communication utilizing power transmission at the same time has a limited data rate, and thus high-speed data transmission is possible using an out-of-band communication module.
In addition, when an error occurs in power transmission and in-band data communication, an error may be reported by using an out-of-band communication module.
1 is a view showing a wireless power transmission system according to one side.
2 is a block diagram of a wireless power receiver guided to a power transmission region in a wireless power transmission system according to one side.
3 is a block diagram of a wireless power transmitter guided to a power transmission region in a wireless power transmission system according to one side.
4 is a diagram illustrating an out-of-band communication module for deriving a transmission area in a wireless power transmission system according to one side.
5 is a diagram illustrating a transmission area induction using communication and positioning functions according to one side.
6 is a diagram illustrating a meta-structured resonator according to one side.
FIG. 7 is a diagram illustrating an equivalent circuit of the resonator illustrated in FIG. 6.
8 is a diagram illustrating a meta-structured resonator according to another side.
9 is a view showing in detail the insertion position of the capacitor of FIG.
10 is a flowchart illustrating a method of receiving wireless power induced in a power transmission area in a wireless power transmission system according to one side.
11 is a flowchart illustrating a wireless power transmission method induced in a power transmission region in a wireless power transmission system according to one side.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First, the wireless power transmission technology used in the wireless power transmission system will be described. Wireless power transmission technology can be classified into three types of electromagnetic induction method, radio wave reception method, electric field or magnetic field resonance method.
First, the electromagnetic induction method uses a phenomenon in which magnetic flux is generated when an alternating current flows in one coil after approaching two different coils close to each other, and thus electromotive force is generated in the other coil. The electromagnetic induction method has the most high efficiency and practical use, such as the power utilization efficiency is approximately 60-98%.
Second, in the radio wave reception method, radio wave energy is received and used by an antenna to convert an AC radio wave waveform into a direct current through a rectifier circuit to obtain power. Radio reception method is capable of transmitting wireless power over the longest distance (above several meters).
Third, the resonance method uses resonance of an electric field or a magnetic field, and transmits energy by resonating at the same frequency between devices. In case of using the resonance of the magnetic field, electric power is generated by using magnetic resonance coupling using the LC resonator structure. The magnetic resonance method is a technology that uses a near field effect of a short distance compared to the wavelength of the used frequency. Unlike the radio wave reception method, it is a non-radiative energy transmission, and matches the resonance frequency between the transmitter and the receiver. Send it. The magnetic resonance method increases the power transmission efficiency by about 50 ~ 60%, which is much higher than the radio wave reception type through radio wave radiation. Although the transmission / reception period distance is about several meters, although the technique used in the near field rather than the radio wave reception method, the power transmission is possible at a far distance than the electromagnetic induction type within a few mm.
On the other hand, in order to perform wireless power transfer, it is necessary to exchange various data between the power transmitter and the power receiver. That is, it is necessary to exchange information about whether the power receiver currently needs charging, how much if necessary, how to adjust parameters for charging, and whether the charging is completed. In-band data communication may be used to exchange such data. In-band refers to the same frequency band as the resonant frequency band for wireless power transmission, and out-of-band refers to a frequency band independent of the resonant frequency band. Out-of-band communication uses a frequency band different from the in-band frequency band. Therefore, the communicable area of the out of band may be formed differently from the power transmittable area.
1 is a diagram illustrating a wireless power transmission system according to one side.
In the example of FIG. 1, it is assumed that the wireless power transmitted through the wireless power transmission system is resonance power.
Referring to FIG. 1, a wireless power transmission system is a source-target structure consisting of a source and a target. That is, the wireless power transmission system includes a
The
The
The matching
The
The
The
The matching
The
The
Referring to FIG. 1, the control process of the cue-factor sets the resonance bandwidth of the
In resonant wireless power transmission, the resonance bandwidth is an important factor. When Qt is a Q-factor that considers the distance change between the
[Equation 1]
In
On the other hand, impedance mismatching between the
That is, the
2 is a block diagram of a wireless power receiver guided to a power transmission region in a wireless power transmission system according to one side.
Referring to FIG. 2, the wireless power receiver includes a
The
When the
The
The
The power transmission
In addition, the wireless power receiver guided to the power transmission region in the wireless power transmission system according to one side, even when in-band communication is possible by induction of the wireless power transmitter, high-speed data for receiving data at high speed through out-of-band communication The receiver may further include. Since in-band data communication utilizing power transmission is limited in data transmission rate, when data transmission and reception of a capacity larger than the limit is required, the wireless power receiver may receive data at high speed through out-of-band communication.
In addition, the wireless power receiver induced in the power transmission area in the wireless power transmission system according to one side, even if located in the power transmission area by the induction of the wireless power transmission device, if an error occurs in the power transmission through the in-band out of band communication It may further include an error report unit for reporting an error through. The wireless power receiver may reduce power consumption by reporting an error to the wireless power transmitter through out-of-band communication when a problem occurs in in-band.
3 is a block diagram of a wireless power transmitter guided to a power transmission region in a wireless power transmission system according to one side.
Referring to FIG. 3, the wireless power transmitter includes an information receiver 310, a power transmission area induction unit 320, a communication determiner 330, and a power transmitter 340.
The information receiver 310 receives location information of the wireless power receiver through out-of-band communication from the wireless power receiver. The information receiver 310 transmits and receives data to and from the wireless power receiver outside the power transmission area through out-of-band communication, not in-band for transmitting power. The information receiver 310 receives location information of the wireless power receiver to guide the wireless power receiver to a power transmission area. Further, even when the wireless power receiver is located in the power transmission area due to the transmission area induction, the information receiver 310 receives an error through the out of band communication from the wireless power receiver when an error occurs in the power transmission through the in-band. You can get a report.
The power transmission area induction unit 320 guides the wireless power receiver to the power transmission area through out-of-band communication based on the location information. The derivation process consists of sending and receiving data through out of band communication. The power transmission area induction unit 320 may inform the wireless power receiver of the location of the wireless power transmitter and update the distance and direction to the power transmission area as the wireless power receiver moves.
The communication determining unit 330 determines whether the wireless power receiver is guided to the power transmission area to enable in-band communication. The communication determination unit 330 periodically checks whether in-band communication is possible with the wireless power receiver, and when in-band communication is possible, the wireless power receiver reaches the transmission area and thus ends the induction into the power transmission area. .
If the in-band communication is possible, the power transmitter 340 transmits power to the wireless power receiver through the in-band. If in-band communication is possible, the power transmitter 340 may transmit power and data through the in-band. In addition, even when data communication is possible through the in-band, the power transmitter 340 may transmit the high speed data to the wireless power receiver through the out of band.
In addition, the wireless power transmitter induced in the power transmission region in the wireless power transmission system according to one side may further include a moving unit for moving through the moving object based on the received position information. For example, the wireless power transmitter may be configured as a robot and move, and may transmit power even when the wireless power receiver is not guided to the power transmission area.
4 is a diagram illustrating an out-of-band communication module for deriving a transmission area in a wireless power transmission system according to one side.
Targets equipped with a wireless power (WP) receiver can use the out of band to perform information exchange (fine-time-synchronization, transmission area derivation, authentication information, etc.) for location, transmission area derivation and power transmission. Can be. Here, the out-of-band communication module may use Bluetooth, wireless LAN, and the like.
5 is a diagram illustrating a transmission area induction using communication and positioning functions according to one side.
Since the wireless power receiver is located outside the transmission area, the wireless power receiver can communicate through the out of band. The wireless power receiver may determine its own location by performing out-of-band communication with the APs AP1, 2, and 3, and transmit the location information and the induction request signal to the power transmission area to the wireless power transmitter. The wireless power receiver may reach a power transmission area under the guidance of the wireless power transmitter, and may receive power from the wireless power transmitter through an in-band when the power transmission area is reached.
6 is a diagram illustrating a meta-structured resonator according to one side.
Referring to FIG. 6, the meta-structured resonator includes a transmission line 610 and a capacitor 620. Here, the capacitor 620 is inserted in series at a specific position of the transmission line 610, and the electric field is trapped in the capacitor.
In addition, as shown in FIG. 6, the meta-structured resonator has a form of a three-dimensional structure. Unlike the illustrated in FIG. 6, the resonator may be implemented in a two-dimensional structure in which transmission lines are arranged in x and z planes.
The capacitor 620 is inserted into the transmission line 610 in the form of a lumped element and a distributed element, for example, an interdigital capacitor or a gap capacitor centered on a substrate having a high dielectric constant. As the 620 is inserted into the transmission line 610, the resonator may have a metamaterial characteristic.
Here, the metamaterial is a material having special electrical properties that cannot be found in nature, and has an artificially designed structure. The electromagnetic properties of all materials in nature have inherent permittivity or permeability, and most materials have positive permittivity and positive permeability. In most materials, the right-hand rule applies to electric fields, magnetic fields and pointing vectors, so these materials are called RHM (Right Handed Material). However, metamaterials are materials with a permittivity or permeability of less than 1, and according to the sign of permittivity or permeability, ENG (epsilon negative) material, MNG (mu negative) material, DNG (double negative) material, NRI (negative refractive index) Substances, and left-handed (LH) substances.
At this time, when the capacitance of the capacitor inserted as the lumped element is properly determined, the resonator may have the characteristics of the metamaterial. In particular, by appropriately adjusting the capacitance of the capacitor, the resonator may have a negative permeability, so that the resonator according to an embodiment of the present invention may be referred to as an MNG resonator.
The MNG resonator may have a zero-order resonance characteristic having a frequency when the propagation constant is 0 as a resonance frequency. Since the MNG resonator may have a zeroth resonance characteristic, the resonant frequency may be independent of the physical size of the MNG resonator. That is, as will be described again below, in order to change the resonant frequency in the MNG resonator, it is sufficient to design the capacitor appropriately, so that the physical size of the MNG resonator may not be changed.
In addition, in the near field, the electric field is concentrated on the series capacitor 620 inserted in the transmission line 610, so that the magnetic field is dominant in the near field due to the series capacitor 620.
In addition, the MNG resonator may have a high Q-factor by using the capacitor 620 as the lumped element, thereby improving the efficiency of power transmission.
In addition, the MNG resonator may include a matcher 630 for impedance matching. At this time, the matcher 630 properly tunable the strength of the magnetic field for coupling with the MNG resonator, and the impedance of the MNG resonator is adjusted by the matcher 630. The current flows into or out of the MNG resonator through the connector 640.
In addition, although not explicitly illustrated in FIG. 6, a magnetic core penetrating the MNG resonator may be further included. Such a magnetic core may perform a function of increasing a power transmission distance.
The characteristics of the MNG resonator of the present invention will be described in detail below.
FIG. 7 is a diagram illustrating an equivalent circuit of the resonator illustrated in FIG. 6.
The resonator shown in FIG. 6 may be modeled with the equivalent circuit shown in FIG. 7. In the equivalent circuit of FIG. 7, C L represents a capacitor inserted in the form of a lumped element at the interruption of the transmission line of FIG. 6.
At this time, the resonator for wireless power transmission shown in FIG. 6 has a zeroth resonance characteristic. That is, when the propagation constant is 0, the resonator for wireless power transmission
[Equation 2]
Referring to Equation 2, the resonant frequency of the resonator
8 is a diagram illustrating a meta-structured resonator according to another side.
Referring to FIG. 8, the meta-structured resonator includes a
In the
The
The
The
9 is a view showing in detail the insertion position of the
Referring to FIG. 9, the
10 is a flowchart illustrating a method of receiving wireless power induced in a power transmission area in a wireless power transmission system according to one side.
The wireless power transmission system includes a wireless power transmitter corresponding to a source and a wireless power receiver corresponding to a target.
In
In
In
Also, in
In addition, even when in-band communication is possible by induction of the wireless power transmitter, the target may receive data at high speed through out-of-band communication.
In addition, even when the target is located in the power transmission area due to the induction of the wireless power transmission apparatus, if an error occurs in power transmission through the in-band, the target may report the error through out-of-band communication.
11 is a flowchart illustrating a wireless power transmission method induced in a power transmission region in a wireless power transmission system according to one side.
The wireless power transmission system includes a wireless power transmitter corresponding to a source and a wireless power receiver corresponding to a target.
In
In
In
In
Methods according to an embodiment of the present invention can be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.
As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.
Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.
Claims (19)
Recognizing the position outside the transmission area, the position determination unit-in band for determining the current position through the out-of-band communication with the AP (AP) means the same frequency band as the resonance frequency band The out of band is a separate frequency band, not a resonant frequency band;
An information transmitter for transmitting the information about the current location to the wireless power transmitter through the out of band communication; And
Transmission area induction unit for indicating the degree of induction as guided to the transmission area of the wireless power transmission device
Wireless power receiving apparatus guided to the power transmission area in a wireless power transmission system comprising a.
The position determining unit,
In performing out-of-band communication with the AP, wireless power transmission for determining a location using a positioning technique including a time difference of arrival (TDOA), a direction of arrival (DOA), a received signal strength indicator (RSSI) method, and the like. Wireless power receiving device guided to the power transmission area in the system.
The information transmission unit,
And a signal for requesting induction to the power transmission area of the wireless power transmission device and a wireless power reception device to be induced in the power transmission area in a wireless power transmission system for transmitting information on time synchronization with the wireless power transmission device.
The information transmission unit,
Wireless power receiving apparatus guided to the power transmission area in the wireless power transmission system, characterized in that for transmitting the authentication information required for receiving wireless power from the wireless power transmission device.
The power transmission area induction unit,
The wireless power receiver is guided to the power transmission area in the wireless power transmission system for displaying information on the direction and distance with the wireless power transmitter on the screen (display) in accordance with the guidance signal of the wireless power transmitter.
The power transmission area induction unit,
The wireless power receiver is guided to the power transmission region in the wireless power transmission system, characterized in that there is a difference in the signal sound generated according to the distance difference with the wireless power transmitter while moving in accordance with the guidance signal of the wireless power transmitter.
A high speed data receiver for receiving data at high speed through out of band communication even when in-band communication is possible by induction of the wireless power transmitter.
Wireless power receiving apparatus guided to the power transmission area in a wireless power transmission system further comprising.
An error report unit for reporting an error through out-of-band communication when an error occurs in power transmission through in-band even when located in a power transmission area due to the induction of the wireless power transmitter.
Wireless power receiving apparatus guided to the power transmission area in a wireless power transmission system further comprising.
A power transmission area inducing unit configured to guide the wireless power receiver to a power transmission area through the out of band communication based on the location information;
A communication determination unit determining whether the wireless power receiver is guided to the power transmission area to enable in-band communication; And
Power transmission unit for transmitting power to the wireless power receiver through the in-band if the in-band communication is possible
Wireless power transmission apparatus for leading to a power transmission area in a wireless power transmission system comprising a.
The power transmitter,
The wireless power transmitter of the wireless power transmission system for inducing high-speed data to the wireless power receiver through the out of band, even if data communication is possible through the in-band.
Wherein the information receiver comprises:
Even when the wireless power receiver is located in the power transmission area due to the power transmission area induction, if an error occurs in power transmission through in-band, the wireless power transmission system receives an error report through out-of-band communication from the wireless power receiver. Wireless power transmitter to guide the transmission area in the transmission.
A moving unit moving through the moving object based on the received position information
Wireless power transmission apparatus for leading to a power transmission area in a wireless power transmission system further comprising.
If it is located outside the power transmission area, determining the current position through the out-of-band communication with the AP (in-band) means the same frequency band as the resonant frequency band and out of The band is a separate frequency band, not a resonant frequency band;
Transmitting the information about the current location to the wireless power transmitter through the out-off band communication; And
Informing the degree of induction as guided to the power transmission area of the wireless power transmission device
Wireless power receiving method induced in the power transmission area in a wireless power transmission system comprising a.
Transmitting the information about the current location,
Wireless power receiving method guided to the power transmission area in the wireless power transmission system, characterized in that for transmitting the authentication information required to receive wireless power from the wireless power transmission device.
Receiving data at high speed through out-of-band communication even when in-band communication is possible by induction of the wireless power transmitter.
Wireless power receiving method guided to the power transmission area in a wireless power transmission system further comprising.
Reporting an error through out-of-band communication when an error occurs in power transmission through the in-band even when located in a power transmission area due to the induction of the wireless power transmitter.
Wireless power receiving method guided to the power transmission area in a wireless power transmission system further comprising.
Inducing the wireless power receiver to a power transmission area through the out of band communication based on the location information;
Determining whether the wireless power receiver is guided to the power transmission area to enable in-band communication; And
Transmitting power to the wireless power receiver through the in-band when the in-band communication is possible
Wireless power transmission method for leading to a power transmission area in a wireless power transmission system comprising a.
The step of transmitting power,
The wireless power transmission method of inducing a transmission power in the wireless power transmission system for transmitting high-speed data to the wireless power receiver through the out of band even when data communication is possible through the in-band.
Receiving the location information,
Even when the wireless power receiver is located in the power transmission area due to the power transmission area induction, if an error occurs in power transmission through in-band, the wireless power transmission system receives an error report through out-of-band communication from the wireless power receiver. Wireless power transmission method for inducing to the power transmission area in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100054630A KR101640772B1 (en) | 2010-06-10 | 2010-06-10 | Apparatus and method inducing wireless power receiver to power transmission area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100054630A KR101640772B1 (en) | 2010-06-10 | 2010-06-10 | Apparatus and method inducing wireless power receiver to power transmission area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20110134970A true KR20110134970A (en) | 2011-12-16 |
| KR101640772B1 KR101640772B1 (en) | 2016-07-19 |
Family
ID=45502021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020100054630A KR101640772B1 (en) | 2010-06-10 | 2010-06-10 | Apparatus and method inducing wireless power receiver to power transmission area |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101640772B1 (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130117039A (en) * | 2012-04-17 | 2013-10-25 | 삼성전자주식회사 | Method and apparatus for wireless power transmission and apparatus for wireless power reception |
| WO2014021636A1 (en) * | 2012-07-31 | 2014-02-06 | 인텔렉추얼디스커버리 주식회사 | Wireless power transmission network and wireless power transmission method |
| KR101425433B1 (en) * | 2012-07-31 | 2014-08-04 | 인텔렉추얼디스커버리 주식회사 | Wireless power transfer network and wireless power transfer method |
| KR101425436B1 (en) * | 2012-07-31 | 2014-08-04 | 인텔렉추얼디스커버리 주식회사 | Wireless power transfer network and wireless power transfer method |
| KR101425434B1 (en) * | 2012-07-31 | 2014-08-14 | 인텔렉추얼디스커버리 주식회사 | Wireless power transfer network and wireless power transfer method |
| KR101722768B1 (en) * | 2016-01-14 | 2017-04-03 | 동서대학교산학협력단 | Automatic method for wireless charging using Real Time Location System |
| WO2020071842A1 (en) * | 2018-10-04 | 2020-04-09 | 엘지전자 주식회사 | Wireless power transmitter |
| WO2020180004A1 (en) * | 2019-03-03 | 2020-09-10 | 엘지전자 주식회사 | Apparatus and method for performing wireless power transmission on basis of out-band communication in wireless power transmission system |
| WO2020204303A1 (en) * | 2019-04-05 | 2020-10-08 | 엘지전자 주식회사 | Near field communication method and device in wireless power transmission system |
| WO2020226384A1 (en) * | 2019-05-03 | 2020-11-12 | 엘지전자 주식회사 | Method for controlling wireless power link, and device therefor |
| KR20200139079A (en) * | 2019-05-31 | 2020-12-11 | 베이징 시아오미 모바일 소프트웨어 컴퍼니 리미티드 | Wireless charging communication method, apparatus, device, program and storage medium |
| WO2021215832A1 (en) * | 2020-04-21 | 2021-10-28 | 엘지전자 주식회사 | Wireless power receiver and wireless power transmitter |
| WO2021215793A1 (en) * | 2020-04-20 | 2021-10-28 | 엘지전자 주식회사 | Wireless power reception device and wireless power transmission device |
| WO2021230703A1 (en) * | 2020-05-14 | 2021-11-18 | 엘지전자 주식회사 | Wireless power reception device and communication method performed by wireless power reception device |
| WO2021235909A1 (en) * | 2020-05-22 | 2021-11-25 | 엘지전자 주식회사 | Wireless power transmission apparatus, wireless power transmission method by wireless power transmission apparatus, wireless power reception apparatus, and wireless power reception method by wireless power reception apparatus |
| WO2021235864A1 (en) * | 2020-05-20 | 2021-11-25 | 엘지전자 주식회사 | Wireless power transmission method and wireless power reception method |
| WO2021246803A1 (en) * | 2020-06-03 | 2021-12-09 | 엘지전자 주식회사 | Wireless power receiver device, wireless power transmitter device, method of receiving wireless power, and method of transmitting wireless power |
| US11962169B2 (en) | 2021-03-24 | 2024-04-16 | Samsung Electronics Co., Ltd. | Wireless power transmission device transmitting charging power to wireless power receiving device and method of operating the same |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108496260B (en) | 2015-10-26 | 2020-05-19 | Oti照明公司 | Method for patterning a surface overlayer and device comprising a patterned overlayer |
| KR102563713B1 (en) | 2017-04-26 | 2023-08-07 | 오티아이 루미오닉스 인크. | Methods of patterning the coating of a surface and apparatus comprising the patterned coating |
| US11043636B2 (en) | 2017-05-17 | 2021-06-22 | Oti Lumionics Inc. | Method for selectively depositing a conductive coating over a patterning coating and device including a conductive coating |
| US11751415B2 (en) | 2018-02-02 | 2023-09-05 | Oti Lumionics Inc. | Materials for forming a nucleation-inhibiting coating and devices incorporating same |
| WO2019215591A1 (en) | 2018-05-07 | 2019-11-14 | Oti Lumionics Inc. | Method for providing an auxiliary electrode and device including an auxiliary electrode |
| WO2020178804A1 (en) | 2019-03-07 | 2020-09-10 | Oti Lumionics Inc. | Materials for forming a nucleation-inhibiting coating and devices incorporating same |
| US11832473B2 (en) | 2019-06-26 | 2023-11-28 | Oti Lumionics Inc. | Optoelectronic device including light transmissive regions, with light diffraction characteristics |
| KR20220046551A (en) | 2019-06-26 | 2022-04-14 | 오티아이 루미오닉스 인크. | Optoelectronic device comprising a light transmitting region having light diffraction properties |
| KR20220045202A (en) | 2019-08-09 | 2022-04-12 | 오티아이 루미오닉스 인크. | Optoelectronic Device Including Auxiliary Electrodes and Partitions |
| US11985841B2 (en) | 2020-12-07 | 2024-05-14 | Oti Lumionics Inc. | Patterning a conductive deposited layer using a nucleation inhibiting coating and an underlying metallic coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005168232A (en) * | 2003-12-04 | 2005-06-23 | Takenaka Komuten Co Ltd | Cordless power supply method |
| KR20070116151A (en) * | 2005-04-04 | 2007-12-06 | 노키아 코포레이션 | Access management in a wireless local area network |
| JP2008547242A (en) * | 2005-02-11 | 2008-12-25 | インターデイジタル テクノロジー コーポレーション | Method and apparatus for processing packets originating from local and adjacent basic service sets |
| JP2009261156A (en) * | 2008-04-17 | 2009-11-05 | Sony Corp | Radio communication apparatus, power supply method, program and radio communication system |
-
2010
- 2010-06-10 KR KR1020100054630A patent/KR101640772B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005168232A (en) * | 2003-12-04 | 2005-06-23 | Takenaka Komuten Co Ltd | Cordless power supply method |
| JP2008547242A (en) * | 2005-02-11 | 2008-12-25 | インターデイジタル テクノロジー コーポレーション | Method and apparatus for processing packets originating from local and adjacent basic service sets |
| KR20070116151A (en) * | 2005-04-04 | 2007-12-06 | 노키아 코포레이션 | Access management in a wireless local area network |
| JP2009261156A (en) * | 2008-04-17 | 2009-11-05 | Sony Corp | Radio communication apparatus, power supply method, program and radio communication system |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130117039A (en) * | 2012-04-17 | 2013-10-25 | 삼성전자주식회사 | Method and apparatus for wireless power transmission and apparatus for wireless power reception |
| WO2014021636A1 (en) * | 2012-07-31 | 2014-02-06 | 인텔렉추얼디스커버리 주식회사 | Wireless power transmission network and wireless power transmission method |
| KR101425433B1 (en) * | 2012-07-31 | 2014-08-04 | 인텔렉추얼디스커버리 주식회사 | Wireless power transfer network and wireless power transfer method |
| KR101425436B1 (en) * | 2012-07-31 | 2014-08-04 | 인텔렉추얼디스커버리 주식회사 | Wireless power transfer network and wireless power transfer method |
| KR101425434B1 (en) * | 2012-07-31 | 2014-08-14 | 인텔렉추얼디스커버리 주식회사 | Wireless power transfer network and wireless power transfer method |
| US9722670B2 (en) | 2012-07-31 | 2017-08-01 | Intellectual Discovery Co., Ltd. | Wireless power transmission network and wireless power transmission method |
| US10601257B2 (en) | 2012-07-31 | 2020-03-24 | Intellectual Discovery Co., Ltd. | Wireless power transmission network and wireless power transmission method |
| KR101722768B1 (en) * | 2016-01-14 | 2017-04-03 | 동서대학교산학협력단 | Automatic method for wireless charging using Real Time Location System |
| US11770029B2 (en) | 2018-10-04 | 2023-09-26 | Lg Electronics Inc. | Wireless power transmission device |
| WO2020071842A1 (en) * | 2018-10-04 | 2020-04-09 | 엘지전자 주식회사 | Wireless power transmitter |
| WO2020180004A1 (en) * | 2019-03-03 | 2020-09-10 | 엘지전자 주식회사 | Apparatus and method for performing wireless power transmission on basis of out-band communication in wireless power transmission system |
| WO2020204303A1 (en) * | 2019-04-05 | 2020-10-08 | 엘지전자 주식회사 | Near field communication method and device in wireless power transmission system |
| US11949254B2 (en) | 2019-04-05 | 2024-04-02 | Lg Electronics Inc. | In-band and out-band communication method and device in wireless power transmission system |
| WO2020226384A1 (en) * | 2019-05-03 | 2020-11-12 | 엘지전자 주식회사 | Method for controlling wireless power link, and device therefor |
| KR20200139079A (en) * | 2019-05-31 | 2020-12-11 | 베이징 시아오미 모바일 소프트웨어 컴퍼니 리미티드 | Wireless charging communication method, apparatus, device, program and storage medium |
| US11316386B2 (en) | 2019-05-31 | 2022-04-26 | Beijing Xiaomi Mobile Software Co., Ltd. | Communication method and device for wireless charging |
| WO2021215793A1 (en) * | 2020-04-20 | 2021-10-28 | 엘지전자 주식회사 | Wireless power reception device and wireless power transmission device |
| WO2021215832A1 (en) * | 2020-04-21 | 2021-10-28 | 엘지전자 주식회사 | Wireless power receiver and wireless power transmitter |
| WO2021230703A1 (en) * | 2020-05-14 | 2021-11-18 | 엘지전자 주식회사 | Wireless power reception device and communication method performed by wireless power reception device |
| WO2021235864A1 (en) * | 2020-05-20 | 2021-11-25 | 엘지전자 주식회사 | Wireless power transmission method and wireless power reception method |
| WO2021235909A1 (en) * | 2020-05-22 | 2021-11-25 | 엘지전자 주식회사 | Wireless power transmission apparatus, wireless power transmission method by wireless power transmission apparatus, wireless power reception apparatus, and wireless power reception method by wireless power reception apparatus |
| WO2021246803A1 (en) * | 2020-06-03 | 2021-12-09 | 엘지전자 주식회사 | Wireless power receiver device, wireless power transmitter device, method of receiving wireless power, and method of transmitting wireless power |
| US11962169B2 (en) | 2021-03-24 | 2024-04-16 | Samsung Electronics Co., Ltd. | Wireless power transmission device transmitting charging power to wireless power receiving device and method of operating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101640772B1 (en) | 2016-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101640772B1 (en) | Apparatus and method inducing wireless power receiver to power transmission area | |
| US9865391B2 (en) | Wireless power repeater and method thereof | |
| KR20110135540A (en) | Method and apparatus for receiving wireless power | |
| KR101829257B1 (en) | Wireless power transmission system based on cell division | |
| KR101672736B1 (en) | Apparatus and method for power and data transmission using mobile device | |
| JP6126373B2 (en) | Wireless module and wireless communication device | |
| JP6023785B2 (en) | Wireless power transmission control method and wireless power transmission device | |
| CN102570629B (en) | Wireless power utilization in a local computing environment | |
| JP6247438B2 (en) | Wireless power transmitting apparatus, wireless power receiving apparatus, and power receiving method | |
| KR20120050011A (en) | Resonance power transmission system and method to control resonance power transmitting and receiving | |
| KR20120093365A (en) | Wireless power utilization in a local computing environment | |
| KR20110131954A (en) | Wireless power transmission apparatus and method | |
| KR20130058423A (en) | Apparatus for relaying wireless power, method for transmitting wireless power and method for contorlling resonance frequency | |
| KR101350309B1 (en) | Wireless power transmission apparatus and method converging wireless power to a specific device | |
| KR101171937B1 (en) | Multi-node wireless power transmission system and wirelss chargeable device using magnetic resonance induction | |
| KR101173947B1 (en) | Method of sending switching instruction in multi-node wireless power transmission | |
| KR101211062B1 (en) | Multi-node wireless power transmission system and charging method therof based on battery information | |
| KR20120005112A (en) | Adaptive wireless power transmit apparatus and method for mobile device in wireless power transmission systems | |
| KR101222137B1 (en) | Directional wireless power transmission apparatus using magnetic resonance induction | |
| KR101635972B1 (en) | Wireless Power Transmission Apparatus and Method, Mobile Terminal and Method for Receiving Wireless Power | |
| KR101630377B1 (en) | Apparatus and method for transmit power beamforming using sub-transmitter in wireless power transmission systems | |
| KR20110136015A (en) | Adaptive frequency hopping apparatus and method for electromagnetic interference suppression in wireless power transmission systems | |
| KR101587546B1 (en) | Wireless Power Transmission Apparatus and Method | |
| KR101171938B1 (en) | Multi-node wireless power transmission system and charging method therof using magnetic resonance induction | |
| KR20110134969A (en) | Adaptive transmit power control apparatus and method for electromagnetic interference suppression in wireless power transmission systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |