Wireless power transmission device
    42.
    发明授权

    公开(公告)号:US11979032B2

    公开(公告)日:2024-05-07

    申请号:US17597500

    申请日:2020-05-15

    CPC classification number: H02J50/40 H02J50/12 H02J50/80 H02J50/90

    Abstract: A wireless power transmission device according to an embodiment of the present specification comprises: a power conversion circuit for transmitting wireless power to a wireless power reception device by means of magnetic coupling with the wireless power reception device at an operating frequency; and a communication/control circuit for communicating with the wireless power reception device by using in-band communication that uses the operating frequency and/or out-band communication that uses a frequency other than the operating frequency, and for communicating with at least one other wireless power transmission device by using the out-band communication, wherein the communication/control circuit measures the distance to the wireless power reception device and transmits the information about the measured first distance to the other wireless power transmission device.

    Device and method for supporting heterogeneous communication in wireless power transfer system

    公开(公告)号:US11527924B2

    公开(公告)日:2022-12-13

    申请号:US17423844

    申请日:2019-11-12

    Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.

    METHOD AND DEVICE FOR PROVIDING AUDIO SERVICE USING BLUETOOTH TECHNOLOGY

    公开(公告)号:US20220030505A1

    公开(公告)日:2022-01-27

    申请号:US17423770

    申请日:2020-01-17

    Abstract: The present disclosure relates to a method and device for a control device to set an audio channel in a wireless communication system by using Bluetooth Low Energy technology. According to the present disclosure, an advertising packet is received from each of a plurality of devices, wherein the advertising packet includes at least one among location information, codec information, and/or role information for the respective device.
    The control device transmits a plurality of pieces of setting information, for providing an audio service, to the plurality of devices on the basis of the advertising packet, wherein each piece of setting information includes delay information about the respective device, and the control device transmits channel setting information for an isochronous channel, for providing the audio service, to the plurality of devices.

    METHOD AND APPARATUS FOR RECEIVING AUDIO DATA BY USING BLUETOOTH TECHNOLOGY

    公开(公告)号:US20210400096A1

    公开(公告)日:2021-12-23

    申请号:US17292329

    申请日:2019-11-08

    Abstract: The present disclosure provides a method of receiving audio data using Bluetooth Low Energy technology. Specifically, a client device receives, from a server device, an advertisement message including channel information for receiving an extended advertisement message for providing an audio streaming service; receives, from the server device, the extended advertisement message including an indicator related to the audio data of the audio streaming service based on the channel information, wherein the indicator represents that the audio data and audio feedback information for identifying the audio data are transmitted by being grouped; receives, from the sever device, the audio data and the audio feedback information through an isochronous channel; obtains, from a user, specific information related to whether to permit to provide the audio streaming service based on the audio feedback information; and decodes the audio data when the specific information represents permission to provide the audio streaming service.

    Method and device for allocating address of device in Bluetooth mesh network

    公开(公告)号:US10979894B2

    公开(公告)日:2021-04-13

    申请号:US15570120

    申请日:2016-05-02

    Abstract: The present invention relates to a method and a device for a first device setting the address of a second device through a Bluetooth mesh network wherein a setting message for setting the address is transmitted to the second device, and a first status message is received from the second device as a response to the setting message, the first status message comprising status information indicating whether the setting of the address was successful, and the setting message comprises at least one among an address field comprising an address value to be used by the second device in the Bluetooth mesh network or a first identifier indicating a request or no request for a response to the setting message.

    Method and apparatus for authenticating a device using Bluetooth technology

    公开(公告)号:US10484363B2

    公开(公告)日:2019-11-19

    申请号:US15602830

    申请日:2017-05-23

    Abstract: Disclosed is a method and an apparatus for a first device to perform authentication by using Bluetooth LE (Low Energy). The present invention provides a method and an apparatus comprising exchanging capability information with a second device; generating a random code for first authentication through a user authentication service based on the capability information; transmitting a write request message including the generated random code to the second device; receiving a write response message in response to the write request message from the second device; receiving an authentication indication message from the second device, wherein the authentication indication message includes state information indicating success or failure of the first authentication based on the random code; and transmitting an authentication complete message in response to the authentication indication message.

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