US 11,861,103 B2
Mitigation of display artifacts from beacon signals
Masaaki Shiomura, Tokyo (JP); Hirokazu Hatayama, Kanagawa (JP); Makoto Takeuchi, Kanagawa (JP); Takayuki Noto, Tokyo (JP); Nobukazu Tanaka, Tokyo (JP); Daisuke Ito, Tokyo (JP); and Tomohiro Hirakawa, Chiba (JP)
Assigned to Synaptics Incorporated, San Jose, CA (US)
Filed by Synaptics Incorporated, San Jose, CA (US)
Filed on Apr. 11, 2022, as Appl. No. 17/717,780.
Prior Publication US 2023/0325027 A1, Oct. 12, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/20 (2006.01)
CPC G06F 3/04166 (2019.05) [G06F 3/0442 (2019.05); G09G 3/20 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); G09G 2340/0435 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An input device comprising:
a proximity sensing panel comprising a plurality of sensor electrodes; and
a proximity sensing circuit configured to:
receive an indication of a transition of an image refresh rate to an equal or lower frequency than a beacon signal rate, and
align transmitting a beacon signal on the proximity sensing panel to a non-refresh period of a display based on the transition,
wherein the beacon signal remains aligned with a vertical synchronization (Vsync) signal.