US 12,295,050 B2
Wireless audio service automatic resetting method and wireless audio system
Uk Heon Jeong, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/771,639
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 26, 2019, PCT No. PCT/KR2019/016306
§ 371(c)(1), (2) Date Apr. 25, 2022,
PCT Pub. No. WO2021/107166, PCT Pub. Date Jun. 3, 2021.
Prior Publication US 2022/0369396 A1, Nov. 17, 2022
Int. Cl. H04W 84/20 (2009.01); H04W 56/00 (2009.01); H04W 76/14 (2018.01); H04W 84/12 (2009.01)
CPC H04W 76/14 (2018.02) [H04W 56/001 (2013.01); H04W 84/12 (2013.01); H04W 84/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A wireless audio service automatic resetting method, the method comprising:
requesting and receiving, by a slave device, latest audio service group information from a master device by connecting to a wireless network;
performing, by the slave device, a corresponding operation by determining whether to recover to an in-service state based on the latest audio service group information,
wherein performing the corresponding operation by determining whether to recover to the in-service state comprises:
checking whether the slave device is comprised in a latest audio service group and whether a service is currently activated; and
performing an operation to recover to the in-service state by the slave device in response to the slave device being comprised in the latest audio service group and the service being currently activated,
wherein performing the operation to recover to the in-service state by the slave device comprises:
checking a service function of the slave device by the slave device based on the latest audio service group information;
requesting and receiving wireless network connection information of the master device through an access point of the wireless network by the slave device in response to a direct connection to the master device being required for the service function;
performing a direct wireless network connection to the master device by the slave device based on the wireless network connection information of the master device after disconnecting from the access point of the wireless network;
transmitting a message notifying the master device that the slave device has been recovered to the in-service state,
wherein the message comprises at least one of an IP address, a MAC address, and an index of the slave device; and
performing time synchronization with the master device; and
providing, by the master device, information required for audio playback based on the message to the slave device recovered to the in-service state; and
receiving and playing back audio data by the slave device based on the information required for the audio playback.