US 11,900,007 B2
Display apparatus
Haiying Wang, Shandong (CN); Pingguang Lu, Shandong (CN); Shanliang Xu, Shandong (CN); Xianzhuo Sun, Shandong (CN); and Yanli Wu, Shandong (CN)
Assigned to Hisense Visual Technology Co., Ltd., Qingdao (CN)
Filed by HISENSE VISUAL TECHNOLOGY CO., LTD., Shandong (CN)
Filed on Feb. 24, 2023, as Appl. No. 18/113,913.
Application 18/113,913 is a continuation of application No. PCT/CN2021/114444, filed on Aug. 25, 2021.
Claims priority of application No. 202010862737.X (CN), filed on Aug. 25, 2020; application No. 202021793548.3 (CN), filed on Aug. 25, 2020; and application No. 202011226522.5 (CN), filed on Nov. 5, 2020.
Prior Publication US 2023/0221917 A1, Jul. 13, 2023
Int. Cl. G06F 3/16 (2006.01); H04N 21/4363 (2011.01); H04R 1/02 (2006.01); H04S 1/00 (2006.01)
CPC G06F 3/162 (2013.01) [H04N 21/43635 (2013.01); H04R 1/025 (2013.01); H04S 1/007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a display configured to display an image from a broadcast system or Internet and/or a user interface;
an input interface configured to connect with an external device and comprising a HDMI port, wherein the external device comprises one or more types of power amplifier device;
a processor in connection with the display and the input interface and configured to:
upon detecting access of a first power amplifier device, output a high-level Hotplug signal at a Hotplug port of the display apparatus, wherein the first power amplifier device comprises: a power amplifier device that supports e-ARC function or a power amplifier device that supports ARC function;
monitor whether a common-mode data packet from the first power amplifier device is received within a first preset duration;
in response to the common-mode data packet being received within the first preset duration, send a heartbeat packet to the first power amplifier device, and monitor whether a heartbeat response as a reply to the heartbeat packet sent from the first power amplifier device is received within a second preset duration after sending the heartbeat packet;
in response to the heartbeat response from the first power amplifier device being received within the second preset duration, determine that the first power amplifier device is a power amplifier device that supports e-ARC function; and
in response to the heartbeat response from the first power amplifier device being not received within the second preset duration, determine that the first power amplifier device is a power amplifier device that supports ARC function.