US 11,770,583 B1
HDMI device and power-saving method for immediately switching HDMI ports
You-Tsai Jeng, Hsinchu (TW); Chia-Hao Chang, Hsinchu (TW); Yi-Cheng Chen, Hsinchu (TW); Kai-Wen Yeh, Hsinchu (TW); Kuo-Chang Cheng, Hsinchu (TW); Chi-Chih Chen, Hsinchu (TW); Szu-Hsiang Lai, Hsinchu (TW); Chin-Lung Lin, Hsinchu (TW); Kai-Wen Cheng, Hsinchu (TW); Te-Chuan Wang, Hsinchu (TW); Ko-Yin Lai, Hsinchu (TW); Keng-Lon Lei, Hsinchu (TW); and Tai-Lai Tung, Hsinchu (TW)
Assigned to MEDIATEK INC., Hsinchu (TW)
Filed by MEDIATEK INC., Hsinchu (TW)
Filed on Jul. 21, 2022, as Appl. No. 17/814,024.
Int. Cl. H04N 5/63 (2006.01); H04N 21/436 (2011.01); H04N 21/4363 (2011.01)
CPC H04N 21/43635 (2013.01) [H04N 5/63 (2013.01)] 16 Claims
OG exemplary drawing
 
8. A High Definition Multimedia Interface (HDMI) device, comprising:
an HDMI interface, comprising a plurality of HDMI ports, wherein the plurality of HDMI ports comprise a first HDMI port initially enabled for displaying;
a second HDMI port disabled for displaying;
an HDMI synchronization signal generator, coupled to the HDMI interface, wherein the HDMI synchronization signal generator provides a synchronization signal according to data from an HDMI source coupled to the second HDMI port; and
a power mode controller, coupled to the HDMI interface, a multiplexer, and the HDMI synchronization signal generator, wherein the power mode controller is configured to transmit a power mode signal to the multiplexer;
wherein a display device is coupled to the power mode controller, and the display device displays video data based on the power mode signal received by the multiplexer.