US 12,464,086 B2
Method for transmitting/receiving video data and device therefor
Dokyun Kim, Seoul (KR); Seunghyun Yoo, Seoul (KR); and Yoonjong Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/290,525
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed May 20, 2022, PCT No. PCT/KR2022/007247
§ 371(c)(1), (2) Date Nov. 14, 2023,
PCT Pub. No. WO2022/245182, PCT Pub. Date Nov. 24, 2022.
Claims priority of application No. 10-2021-0064691 (KR), filed on May 20, 2021; application No. 10-2021-0071098 (KR), filed on Jun. 1, 2021; and application No. 10-2022-0008004 (KR), filed on Jan. 19, 2022.
Prior Publication US 2024/0259523 A1, Aug. 1, 2024
Int. Cl. H04N 7/025 (2006.01)
CPC H04N 7/025 (2013.01) 17 Claims
OG exemplary drawing
 
17. A source device that transmits video data using high definition media interface (HDMI) comprising:
an HDMI transmitter; and
a control unit,
wherein the control unit controls to:
transmit, to a sink device, a message requesting to read capability information of the sink device,
receive first capability information of the sink device from the sink device,
wherein the first capability information is configured to be based on a pre-configured version,
wherein the first capability information is received based on a data structure in which an organizationally unique identifier (OUI) field is omitted,
perform a version change procedure to change a version of the capability information of the sink device based on the version of the capability information of the sink device that is readable by the source device, wherein performing the version change procedure comprises transmitting, to the sink device, support version information on whether the source device can read a higher version of capability information than the version of the first capability information; and
receive second capability information of the sink device based on the version change procedure,
wherein a version of the second capability information is a higher version than a version of the first capability information.