Lg Electronics Inc.

Other

Minsoo Lee

Jingu Choi

Younghwan Kwon

Hyeonjae Lee

Jinkwon Lim

Jangwoong Park

Jaeho Lee

Seungryul Yang

Yongcheol Park

Jaehyu Kim

Taeyoung Song

Jinpil Kim

Joonho Park

Gyunghwan Yook

Jaekoo Lee

Kyungho Kim

Jonghun Song

Sejin Oh

Kyoungsoo Moon

Seungjoo An

Hyunsik Yang

Janghun Bae

Hangyu Cho

Byungjoo Lee

Donghyun Kang

Jinho Youn

Taewook Kwon

Dokyun Kim

Hongwon Lee

Jonghyun Baik

Joonkie Kim

Dongcheol Kim

Jinho Kim

Sungsoo Kim

Soojin Hwang

Beom Jin Jeon

Jeonghwan Kim

SungHyun Cho

Inhwan Choi

Koh Choi

Youngwook Kang

Sungwon Jung

Hyun-Soo Park

Younghun Nam

Beomjin Jeon

Seunghyun Yoo

Suk Wha Kim

Chanhun Jeon

Dongtaek Lee

Yujung Jung

Hongsuk Chung

Jae Hyung Yoo

A method of transmitting and receiving data in a short-range wireless communication system, and a device therefor are provided. More specifically, a method of receiving, by a master device, data in a short-range wireless communication system comprises transmitting, to a slave device, a read request message requesting a reading of at least one data transmission period supported by the slave device; receiving, from the slave device, a read response message including information on the at least one data transmission period supported by the slave device; receiving, from the slave device, a message indicating a selection of a specific content among at least one content related to a service provided by the master device; transmitting, to the slave device, a message for configuring a specific data transmission period among the at least one data transmission period supported by the slave device to the slave device based on (i) a type of the selected specific content and (ii) the information on the at least one data transmission period supported by the slave device; and receiving, from the slave device, the data based on the configured specific data transmission period. The method comprises, based on the type of the selected specific content being changed, transmitting, to the slave device, a message for reconfiguring the data transmission period of the slave device based on the changed type of the content.

Method for transmitting and receiving data in short-range wireless communication system, and apparatus therefor

Provided are a method for transmitting and receiving data and a device for same in a short-range wireless communication system. More specifically, the method comprises the steps of: receiving, from a first slave device, a first advertising message for providing a service related to transmitting and receiving the data; forming a shared link, which is for transmitting and receiving the data and is formed on the basis of the first advertising message, on the basis of link parameters for the configuration of the shared link, the shared link including (i) a first link for data transmission from a master device to a slave device, and (ii) a second link for data transmission from the slave device to the master device; and receiving, from a second slave device, a second advertising message for providing the service. wherein the link parameters applied to the shared link are updated on the basis of the second advertising message in order to add the second slave device as a slave device related to the shared link, and the updated link parameters are configured as different values for each of (i) the first link, and (ii) the second link on the basis of the characteristics of the first and second links.

Method for transmitting and receiving data and device for same in short-range wireless communication system

The present disclosure relates to a method for a third device to perform device authentication in a wireless communication system, and an apparatus for same, which comprises: forming a connection with a first device for being provided with a credential token based on at least one user account related to a specific user; receiving a first message including the credential token; broadcasting an advertisement message including a token identifier (ID) based on the credential token; and forming a connection with a second device through the device authentication of the second device based on the token ID, wherein the success of the device authentication is determined based on whether (i) at least one user account related to the specific user and identified based on the token ID matches (ii) at least one user account among one or more user accounts related to an account-based pairing filter set in the second device.

Method for managing user account using near-field communication in wireless communication system, and apparatus for same

The present specification provides a method for transmitting an address relating to out-band communication performed by a wireless power receiver in a wireless power transmission system, and a device using same, the method characterized by: transmitting to a wireless power transmitter the address relating to the out-band communication of the wireless power receiver, by means of in-band communication established with the wireless power transmitter; exchanging information relating to scan with the wireless power transmitter prior to the establishment of the out-band communication; and establishing the out-band communication on the basis of the address relating to the out-band communication and the information relating to the scan, wherein the information relating to the scan comprises additional information relating to the wireless power receiver.

Method and device for connecting devices by means of Bluetooth and in-band communication in wireless power transmission system

Provided are: a method for establishing out-band communication performed by a wireless power transmitter in a wireless power transmission system; and a device for using same. The method comprises the steps of: transmitting a plurality of pieces of capability information to a plurality of wireless power receivers respectively through in-band communication, wherein each of the plurality of pieces of capability information includes information about whether the wireless power transmitter supports the out-band communication; establishing the out-band communication with the plurality of wireless power transmitters on the basis of the transmission of the plurality of pieces of capability information; and exchanging power control information pertaining to the plurality of wireless power receivers with the plurality of wireless power receivers through the out-band communication.

Method and device for controlling power of multiple devices in wireless power transmission system

A wireless power transmission apparatus for transmitting wireless power to a wireless power reception apparatus, according to an embodiment of the present specification: transmits wireless power to the wireless power reception apparatus by means of magnetic coupling to the wireless power reception apparatus at an operating frequency; communicates with the wireless power reception apparatus by using at least one of in-band communication using the operating frequency and out-band communication using BLUETOOTH® communication; performs an authentication step with the wireless power reception apparatus to increase the level of the wireless power being transmitted to the wireless power reception apparatus; and includes, in a BLUETOOTH® packet, an authentication message required in the authentication step, and transmits the included authentication message to the wireless power reception apparatus via the BLUETOOTH® communication.

Wireless power transmission apparatus and wireless power reception apparatus for transferring and receiving wireless power

The present specification relates to: a wireless power receiving device, which can receive information about a power class on the basis of out-band communications at a short distance before the wireless power receiving device is positioned at the charging position of a wireless power transmitting device, and negotiate power class; the wireless power transmitting device; a wireless power transmitting method; a wireless power receiving method; and a wireless power transmitting system. According to the present specification, whether power of the wireless power transmitting device (or a charger) is suitable for the wireless power receiving device (or a device to be charged) is quickly identified remotely or at a short distance prior to a wireless power transmission (or wireless charging), appropriate charging power is set through negotiation, and then wireless charging can be safely performed.

Wireless charging device, method and system for negotiating power class by using short range wireless communication

A wireless power reception device according to an embodiment of the present specification comprises: a power pickup circuit configured to receive wireless power from a wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency, and convert an AC signal generated by the wireless power into a DC signal; and a communication/control circuit for communicating with the wireless power transmission device by using in-band communication using the operation frequency and out-band communication using a frequency other than the operation frequency, wherein the communication/control circuit transmits access information of a Wi-Fi network connected to the wireless power reception device, to the wireless power transmission device by using the out-band communication.

Wireless power reception device and wireless power transmission device

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.

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

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.

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

According to one embodiment of the present specification, a method for performing authentication between an authentication initiator and an authentication responder in a wireless power transmission system comprises the steps in which: the authentication initiator transmits an initiator certificate chain and an initiator signature to the authentication responder; the authentication initiator receives a responder certificate chain and a responder signature from the authentication responder who has authenticated the authentication initiator by verifying the initiator signature information; and the authentication initiator verifies the responder signature to authenticate the authentication responder.

Mutual authentication and re-authentication method between wireless power transmitting device and wireless power receiving device, and wireless power transmitting device and wireless power receiving device using same

According to one aspect of the present disclosure, a wireless power receiver for receiving wireless power on the basis of out-band communication is provided. The receiver comprises: a power pick-up circuit configured to receive wireless power from a wireless power transmitter at an operating frequency; and a communication/control circuit configured to perform at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency. Here, on the basis of at least one of the received voltage in the power pick-up circuit and a received signal strength indicator (RSSI) of a first signal related to the out-band communication, the communication/control circuit may perform a power interruption procedure for interrupting transmission of the wireless power and a disconnection procedure for releasing the connection of the out-band communication.

Apparatus and method for performing wireless power transmission on basis of out-band communication in wireless power transmission system

The present specification relates to a device and a method enabling in-band communication and out-band communication between a wireless power transmission device and a wireless power receiving device. The present specification discloses a wireless power transmission device, a wireless power transmission method, a wireless power receiving device, a wireless power receiving method and a wireless power transmission system, whereby the existence or not of an inter-device communication connection history is checked using whitelist information of an out-band communication module, and when corresponding to a reconnection, out-band communication is connected, and data exchange for wireless power transmission is carried out via the out-band communication.

Device and method enabling out-band communication in wireless charging device, method and system

A wireless power reception device according to an embodiment of the present specification comprises a controller for: receiving wireless power from a wireless power transmission device, and performing power pickup for receiving the wireless power from the wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency; and communicating with the wireless power transmission device by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, and controlling reception of the wireless power, wherein, in the power transmission step of receiving the wireless power, the controller transmits or receives, using the in-band communication, a message for controlling the wireless power, and transmits or receives, using the out-band communication, an authentication message for authentication of the wireless power transmission device.

The present invention relates to an access control method and device in a wireless power transmission system. A wireless power transmission device comprises: a power conversion circuit configured to have a plurality of primary coils and transmit wireless power to a wireless power reception device by using the primary coil which has formed magnetic coupling to the wireless power reception device at an operating frequency; and a communication/control circuit configured to perform in-band communication with the wireless power reception device by using the operating frequency and perform out-band communication with the wireless power reception device by using a frequency other than the operating frequency, wherein the communication/control circuit can transmit information for notifying whether or not connection to the wireless power reception device is possible by using the out-band communication.

Access control method and device in wireless power transmission system

Growing community of inventors

Seoul, South Korea

Minsoo Lee