US 12,143,744 B2
Signal processing device and video display device having same
Jangwon Lee, Seoul (KR); Kibeom Kim, Seoul (KR); and Gijun Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/997,345
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Apr. 28, 2020, PCT No. PCT/KR2020/005589
§ 371(c)(1), (2) Date Oct. 27, 2022,
PCT Pub. No. WO2021/221194, PCT Pub. Date Nov. 4, 2021.
Prior Publication US 2023/0224425 A1, Jul. 13, 2023
Int. Cl. H04N 5/04 (2006.01); G06T 1/20 (2006.01); H04N 19/44 (2014.01)
CPC H04N 5/04 (2013.01) [G06T 1/20 (2013.01); H04N 19/44 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A signal processing device comprising:
a decoder configured to decode a first video data from a first video source and a second video data from a second video source, and to output the decoded first video data and second video data;
an image quality processor, in response to a common frame rate set based on a first frame rate of the first video data and a second frame rate of the second video data, configured to output the first video data based on the common frame rate;
a graphic processor configured to output the second video data based on the common frame rate;
a first image output interface configured to output the first video data to the image quality processor based on the common frame rate; and
a second image output interface configured to output the second video data to the graphic processor based on the common frame rate.