US 11,722,708 B2
Display device and operating method therefor
Jongmyoung Joh, Suwon-si (KR); and Taeung Jung, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO.. LTD., Suwon-si (KR)
Appl. No. 17/290,551
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
PCT Filed Nov. 20, 2019, PCT No. PCT/KR2019/015928
§ 371(c)(1), (2) Date Apr. 30, 2021,
PCT Pub. No. WO2020/106056, PCT Pub. Date May 28, 2020.
Claims priority of application No. 10-2018-0143901 (KR), filed on Nov. 20, 2018.
Prior Publication US 2022/0014803 A1, Jan. 13, 2022
Int. Cl. H04N 21/234 (2011.01); H04N 21/233 (2011.01); H04N 21/439 (2011.01)
CPC H04N 21/23418 (2013.01) [H04N 21/233 (2013.01); H04N 21/4394 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display device comprising:
a display;
an audio processing/output unit;
a user interface:
a communicator;
a memory storing one or more instructions; and
a processor configured to execute the one or more instructions stored in the memory to:
receive, through the user interface, a user input of selecting a channel,
control the display to display images of video data of the selected channel,
control the audio processing/output unit to process audio data of the selected channel and output the processed audio data,
in response to the user input of selecting the channel, extract a video fingerprint from the video data being displayed on the display of the display device,
control the communicator to transmit the extracted video fingerprint to a server,
receive, via the communicator from the server, a first response comprising a matching result of the extracted video fingerprint and video fingerprints stored in the server,
based on the first response representing that the extracted video fingerprint matches a plurality of video fingerprints stored in the server and comprising information about a time period, among time periods constituting the extracted video fingerprint, in which the extracted video fingerprint matches the plurality of video fingerprints stored in the server, extract an audio fingerprint with respect to the time period in which the extracted video fingerprint matches the plurality of video fingerprints based on the first response, from the audio data being output by the audio processing/output unit of the display device, transmit the extracted audio fingerprint to the server, receive, via the communicator from the server, a second response comprising a matching result of the extracted audio fingerprint and audio fingerprints corresponding to the plurality of video fingerprints stored in the server and provide information about content of the selected channel being displayed on the display based on the second response, and
based on the first response representing that the extracted video fingerprint matches one video fingerprint stored in the server and comprising information about the content of the selected channel being displayed on the display, provide the information about the content of the selected channel being displayed on the display based on the first response without extracting the audio fingerprint from the audio data being output by the audio processing/output unit of the display device.