METHOD AND DEVICE FOR FAST FSK COMMUNICATION IN WIRELESS POWER TRANSMISSION SYSTEM

    公开(公告)号:US20250096616A1

    公开(公告)日:2025-03-20

    申请号:US18728061

    申请日:2023-01-12

    Inventor: Jinho YOUN

    Abstract: Provided are a method and a device using same. The method, performed by a wireless power transmitter, for transferring wireless power to a wireless power receiver in a wireless power transmission system disclosed herein, comprises: entering a power transfer phase related to the transfer of the wireless power and transmitting auxiliary data transport (ADT) packets in the power transfer phase to the wireless power receiver, wherein the wireless power transmitter transmits the ADT packets to the wireless power receiver on the basis of frequency shift keying (FSK), and the maximum size of the ADT packets is determined on the basis of the number of cycles used in the FSK.

    METHOD AND DEVICE FOR UTILIZING COUPLING FACTOR IN WIRELESS POWER TRANSMISSION SYSTEM

    公开(公告)号:US20240154466A1

    公开(公告)日:2024-05-09

    申请号:US18284201

    申请日:2022-03-28

    CPC classification number: H02J50/60 H02J50/10 H02J50/80

    Abstract: The present disclosure provides a method by which a wireless power transmitter transmits wireless power in a wireless power transmission system, and a device using same, the method comprising: receiving, from a wireless power receiver, information for sensing whether a foreign object (FO) is present; sensing, on the basis of the information, whether the FO is present before the transmission of wireless power; transmitting, on the basis of sensing that the FO is not present, the wireless power to the wireless power receiver and measuring a slot quality factor and a coupling factor on a slot while the wireless power is transmitted, wherein the slot quality factor is a quality factor used to determine whether the FO is inserted while the wireless power is transmitted, and the coupling factor is a factor related to the alignment between the wireless power transmitter and the wireless power receiver.

    WIRELESS POWER TRANSMISSION/RECEPTION APPARATUS AND DISPLAY SYSTEM INCLUDING THE SAME

    公开(公告)号:US20220337097A1

    公开(公告)日:2022-10-20

    申请号:US17616752

    申请日:2020-02-27

    Abstract: The present disclosure provides a display system including: a display apparatus; a wireless power reception apparatus configured to supply power to the display apparatus; and a wireless power transmission apparatus configured to emit a laser beam toward the wireless power reception module, wherein the wireless power reception module is formed as a bar type; and the wireless power transmission module comprises a light source configured to emit light of a specific wavelength as a laser beam, and a light shaping unit configured to shape the light of the light source and to convert the shaped light into a laser beam having a different cross-section and output the laser beam. Accordingly, by performing wireless power transmission using laser light, which satisfies the electromagnetic interference (EMI) requirements, wireless power may be transmitted to high-quality wall-mounted TVs and AV devices.

    METHOD AND DEVICE FOR TRANSMITTING DATA IN WIRELESS POWER TRANSMISSION SYSTEM

    公开(公告)号:US20220263352A1

    公开(公告)日:2022-08-18

    申请号:US17735744

    申请日:2022-05-03

    Abstract: The present disclosure relates to a method and a device for transmitting data in a wireless power transmission system. The method for transmitting data by a wireless power transmitter in a wireless power transmission system may comprise the steps of: receiving from a wireless power receiver, within a first control error interval, a first control error packet containing a control error value with respect to power transmitted from the wireless power transmitter; determining the size of a first data packet on the basis of the length of the first control error interval; and transmitting the first data packet to the wireless power receiver.

    ROLLY KEYBOARD
    6.
    发明申请

    公开(公告)号:US20210349550A1

    公开(公告)日:2021-11-11

    申请号:US16322655

    申请日:2017-07-11

    Abstract: The present invention relates to a rolly keyboard. The rolly keyboard comprises: a body having a polygonal columnar shape; a scroll wheel formed in the body; a key assembly coupled to the body, wherein the key assembly comprises a plurality of key line portions in which the keys are disposed in each of a plurality of lines, wherein the plurality of key line portions are wound in the polygonal columnar shape of the body. Thus, scrolling can be accomplished by the scroll wheel.

    WIRELESS POWER TRANSMISSION DEVICE AND METHOD

    公开(公告)号:US20200091774A1

    公开(公告)日:2020-03-19

    申请号:US16468618

    申请日:2017-08-03

    Abstract: The present specification discloses a wireless power transmission device and method thereof. Here, the wireless power transmission device according to an embodiment of the present invention includes: a laser light source unit; a light output unit which emits laser light generated from the laser light source to a light receiving unit of the wireless power receiving device; and a control unit which controls shaping of the emitted light according to the angle of arrival with the light receiving unit so that an overfill loss is less than a predetermined threshold value. Here, the control unit detects the point at which the power conversion efficiency of the light receiving unit is highest, and sets and controls the power density value of the emitted light at the detected point.

    METHOD AND DEVICE RELATED TO TIME REQUIREMENT FOR APPLICATION MESSAGE IN WIRELESS POWER TRANSMISSION SYSTEM

    公开(公告)号:US20250047144A1

    公开(公告)日:2025-02-06

    申请号:US18717283

    申请日:2022-12-07

    Abstract: The present disclosure provides: a method by which a wireless power transmitter transmits wireless power to a wireless power receiver in a wireless power transmission system; and a device using same, the method comprising: entering a power transmission phase related to the transmission of the wireless power; receiving, from the wireless power receiver, a first application message in the power transmission phase; and transmitting, to the wireless power receiver, a second application message, which is a response to the first application message in the power transmission phase, wherein the wireless power transmitter initiates the transmission of the second application message within a specific time period, and the start point of the specific time period is the end point of the first application message.

    METHOD AND APPARATUS FOR SWITCHING TO LOW-COUPLING POWER PROFILE IN WIRELESS POWER TRANSMISSION SYSTEM

    公开(公告)号:US20240322611A1

    公开(公告)日:2024-09-26

    申请号:US18578956

    申请日:2022-07-11

    CPC classification number: H02J50/80 H02J50/12

    Abstract: The present disclosure provides a method, performed by a wireless power receiver, for receiving wireless power in a wireless power transmission system, and an apparatus using the method, the method comprising: transmitting, to a wireless power transmitter, information related to a coupling coefficient between the wireless power transmitter and the wireless power receiver; transmitting information related to a power profile of the wireless power receiver to the wireless power transmitter, wherein the information related to the power profile indicates that the wireless power receiver supports a low-coupling power profile; and receiving the wireless power from the wireless power transmitter on the basis of a response to the information related to the power profile, wherein the low-coupling power profile is a power profile used on the basis of the coupling coefficient between the wireless power receiver and the wireless power transmitter being low.

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