The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2025
Filed:
Sep. 14, 2020
Lg Electronics Inc., Seoul, KR;
Jinseong Lee, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
The present invention relates to a wireless audio transmission device, a wireless sound output device, and a system having same. A wireless audio transmission device according to one embodiment of the present invention comprises: a communication unit for wirelessly transmitting an audio signal to a plurality of wireless sound output devices; and a processor for controlling the communication unit, wherein, when the wireless audio transmission device is in an access point mode and the plurality of wireless sound output devices are in a station mode, the communication unit wirelessly transmits a synchronization request message to the plurality of wireless sound output devices and wirelessly receives a synchronization response message from at least one of the plurality of wireless sound output devices; and after receiving the synchronization response message, when the wireless audio transmission device is in the station mode and a first wireless sound output device among the plurality of wireless sound output devices is in the access point mode, the communication unit wirelessly receives a second synchronization request message from the first wireless sound output device, and wirelessly transmits a second synchronization response message from the first wireless sound output device. Accordingly, it is possible to reduce a synchronization error in a wireless sound output system.