Patent ID: 11954401
Assignee: HISENSE VISUAL TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A display apparatus, comprising:
a display;
a speaker, configured to play audio output from a sound output device; and
a controller, in connection with the display and the speaker and configured to cause the display apparatus to:
in response to a power cutoff command, save a first device list and perform a first set of operations associated with the power cutoff command, wherein the first device list comprises an identifier of a current sound output device of the display apparatus before the power cutoff command, and the first set of operations comprises electrical disconnection of one or more sound output devices from the display apparatus;
while the display apparatus is in a power off state after the power cutoff command, receive a power on command;
in response to the power on command, perform a second set of operations associated with a power on process of the display apparatus, wherein the second set of operations comprises monitoring connecting status of one or more sound output devices during the power on process;
in response to a first audio output device having connected with the display apparatus, determine whether a first identifier of the first audio output device is same as the identifier of the current sound output device in the first device list; and
in response to the first identifier of the first audio output device being same as the identifier of the current sound output device, take the first audio output device as the current sound output device of the display apparatus in the power on process.