US 11,758,097 B2
Method and apparatus for transmitting video signals, and display device
Xitong Ma, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/627,164
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jan. 7, 2021, PCT No. PCT/CN2021/070623
§ 371(c)(1), (2) Date Jan. 14, 2022,
PCT Pub. No. WO2021/143612, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202010049401.1 (CN), filed on Jan. 16, 2020.
Prior Publication US 2022/0279149 A1, Sep. 1, 2022
Int. Cl. H04N 7/01 (2006.01); H04N 5/06 (2006.01); H04N 7/56 (2006.01)
CPC H04N 7/56 (2013.01) [H04N 5/06 (2013.01); H04N 7/013 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for transmitting video signals, comprising:
receiving an input video signal provided by a source, wherein the input video signal comprises an image signal and a source timing signal;
generating a pulse synchronization signal based on the source timing signal and an output frame rate, wherein the output frame rate is a frame rate of outputting the image signal to a display module, and a cycle of the pulse synchronization signal is an integer multiple of a cycle of the source timing signal, and is an integer multiple of a cycle corresponding to the output frame rate;
generating an output timing signal based on the pulse synchronization signal; and
transmitting an output video signal to the display module, wherein the output video signal comprises the image signal and the output timing signal,
wherein generating the pulse synchronization signal based on the source timing signal and the output frame rate comprises:
determining an input frame rate of the source based on the source timing signal;
generating the pulse synchronization signal based on the source timing signal in the case that the input frame rate is the same as the output frame rate, wherein the cycle of the pulse synchronization signal is equal to the cycle of the source timing signal; and
generating the pulse synchronization signal based on a ratio of the input frame rate to the output frame rate and the source timing signal in the case that the input frame rate is different from the output frame rate, wherein the cycle of the pulse synchronization signal is greater than or equal to the cycle of the source timing signal.