公开(公告)号：US20210314855A1

公开(公告)日：2021-10-07

申请号：US17264114

申请日：2019-06-19

Applicant: LG ELECTRONICS INC.

Inventor： Jonggon KIM ,  Hankyul YOU ,  Suhyun PARK ,  Woonsuk CHANG

IPC: H04W48/16 ,  H04W4/80 ,  H04W48/18 ,  H04L12/28

Abstract: A home appliance connection method according to embodiments of the present invention may comprise the steps of: setting a wireless mode to a station mode; periodically searching for a wireless network on the basis of the station mode; and, when a wireless network search request is received from a terminal device, transmitting found wireless network information to the terminal device. A home appliance connection method according to embodiments of the present invention may further comprise a step in which the terminal device receives found wireless network information, wherein the found wireless network information of the terminal device may be information from which a wireless network not associated with a home appliance for the terminal device has been filtered. A home appliance connection method according to embodiments of the present invention may further comprise a step of, when the wireless mode is a station mode, periodically changing the wireless mode into an access point (AP) mode and periodically transmitting a beacon message to the terminal device on the basis of the AP mode. A home appliance connection method according to embodiments of the present invention may comprise a step of receiving a first advertising message on the basis of a Bluetooth from the terminal device, wherein the first advertising message may comprise a home appliance registration request. Furthermore, a home appliance connection method may comprise the steps of: transmitting a second advertising message to the terminal device on the basis of the Bluetooth in response to the first advertising message; and searching for a wireless network in response to the first advertising message.

公开(公告)号：US20220321941A1

公开(公告)日：2022-10-06

申请号：US17597313

申请日：2019-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Hankyul YOU ,  Woonsuk CHANG

IPC: H04N21/43 ,  H04N5/60 ,  H04N21/4363

Abstract: A multimedia service providing method according to an embodiment of the present invention may comprise: transmitting video data to a display device; transmitting a request message for requesting connection state information to one or more remote wireless speakers; receiving the connection state information from the one or more remote wireless speakers; separately calculating a delay time, which is a time at which a transmission delay is predicted, on the basis of the received connection state information; transmitting no audio data to a remote wireless speaker having a delay time longer than a preconfigured time from among the one or more remote wireless speakers; and transmitting the audio data to a remote wireless speaker having a delay time shorter than the preconfigured time from among the one or more remote wireless speakers, wherein the preconfigured time is configured to be a maximum allowable synchronization time difference between the video data and the audio data.