Method and device for controlling device using bluetooth in wireless communication system

    公开(公告)号:US09961531B2

    公开(公告)日:2018-05-01

    申请号:US15282747

    申请日:2016-09-30

    CPC classification number: H04W8/005

    Abstract: The present invention relates to a method for controlling a first device performed by a control device using the Bluetooth. The present invention provides a method and apparatus including receiving a first advertising message from a first device; calculating a first distance value that indicates a distance with the first device based on the first advertising message; receiving a second advertising message from a second device when the first distance value is smaller than a threshold value preconfigured to determine a proximity with the control device; and calculating a second distance value that indicates a distance with the second device based on the second advertising message, where a Bluetooth connection is established between the first device and the second device when the second distance value is smaller than the threshold value.

    Method and apparatus for reproducing multimedia contents using bluetooth in wireless communication system

    公开(公告)号:US09641963B2

    公开(公告)日:2017-05-02

    申请号:US14899671

    申请日:2014-06-20

    CPC classification number: H04W4/008 H04L65/1083 H04W4/80

    Abstract: A wireless communication system plays multimedia content using Bluetooth communication. The wireless communication system includes receiving a request message related to allowing streaming of second multimedia content of a second source device from the sink device by a first source device streaming first multimedia content; determining whether to allow streaming of the second multimedia content of the second source device; transmitting a response message including a determination result for whether to allow streaming of the second multimedia content to the sink device in response to the request message; transmitting a message for stopping streaming of the second multimedia content to the sink device, when the first source device allows streaming of the second multimedia content; and receiving a streaming stop response message from the sink device responsive to the streaming stop message. The request message includes one of a name, MAC address, and ID of the second source device.

    Apparatus and method for providing charging status information in wireless power transmission system

    公开(公告)号:US12206258B2

    公开(公告)日:2025-01-21

    申请号:US17432322

    申请日:2019-07-30

    Abstract: Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit configured to receive wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device at an operational frequency and convert an alternating current signal generated by the wireless power into a direct current signal; a battery configured to receive the direct current signal from the power pickup unit; and a communication/control unit configured to receive the direct current signal from the power pickup unit, perform a handover procedure from in-band communication using the operational frequency to out-band communication using a frequency other than the operational frequency, perform a procedure for selecting a priority display device on which charging status information about the battery is to be displayed through the out-band communication with the wireless power transmission device, and generate the charging status information.

    Wireless power transmission method over a plurality of phases and wireless power reception method

    公开(公告)号:US12166365B2

    公开(公告)日:2024-12-10

    申请号:US17999323

    申请日:2021-05-20

    Abstract: A method by which a wireless power transmitter transmits wireless power, according to one embodiment of the present specification, comprises: a ping step of transmitting a digital ping, and receiving a response to the digital ping from a wireless power receiver; a configuration step of receiving, from the wireless power receiver, a configuration packet including information about whether the wireless power receiver supports an authentication function; and a power transmission step of transmitting wireless power to the wireless power receiver, wherein the power transmission step includes a low-power transmission step of transmitting low wireless power, an authentication step of authenticating the wireless power transmitter on the basis the supporting of the authentication function by the wireless power receiver, and a high-power transmission step of transmitting high wireless power on the basis of the successful authentication of the wireless power transmitter in the authentication step.

    Method and apparatus for performing wireless power transmission on basis of authentication

    公开(公告)号:US12119673B2

    公开(公告)日:2024-10-15

    申请号:US17310168

    申请日:2019-10-16

    CPC classification number: H02J50/80 H02J50/12 H04W4/80 H04W12/06

    Abstract: The present disclosure relates to a device and a method for performing wireless power transmission on the basis of authentication. A wireless power receiver according to the present specification comprises a communication/control circuit for performing an authentication procedure on the basis of out-band communication, wherein the out-band communication is Bluetooth low energy (BLE) communication, and the communication/control circuit performs the authentication procedure on the basis of a logical link control and adaptation protocol (L2CAP) or a generic attribute profile (GATT) of the BLE communication. The present disclosure defines an authentication procedure or authentication messages of a wireless transmission device or a wireless reception device by using an out-band communication protocol, and thus can support various applications of wireless power.

    Wireless power transmission device
    60.
    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.

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