ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,688, issued on Dec. 2.
"Touch controller synchronization with the downlink signal of stylus" was invented by Pan Wang (Shenzhen, China), Yue Ding (Beijing) and Bowei Chen (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an embodiment, a system for synchronizing a stylus-enabled device with a stylus is proposed. The stylus-enabled device includes a touch controller configured to transmit an uplink signal to the stylus, receive a downlink signal from the stylus, determine a timing offset between the uplink signal and the downlink signal, determine a phase shift of the downlink signal, and adjust a synchronization timing base...