US 12,141,374 B2
Method applied to signal synchronization system, system, stylus, and electronic device
Hang Li, Shenzhen (CN); and Yi Su, Shenzhen (CN)
Assigned to HONOR DEVICE CO., LTD., Shenzhen (CN)
Appl. No. 18/262,879
Filed by Honor Device Co., Ltd., Shenzhen (CN)
PCT Filed Jan. 14, 2022, PCT No. PCT/CN2022/072154
§ 371(c)(1), (2) Date Jul. 25, 2023,
PCT Pub. No. WO2022/193815, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. 202110293428.X (CN), filed on Mar. 15, 2021; and application No. 202110363220.0 (CN), filed on Apr. 2, 2021.
Prior Publication US 2024/0094841 A1, Mar. 21, 2024
Int. Cl. G06F 3/0354 (2013.01); G06F 1/16 (2006.01); G06F 1/26 (2006.01); G06F 3/02 (2006.01); G06F 3/023 (2006.01); G06F 3/038 (2013.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/04842 (2022.01); G06F 3/04883 (2022.01); G06F 40/166 (2020.01); H02J 7/34 (2006.01); H02J 50/10 (2016.01); H02J 50/80 (2016.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01)
CPC G06F 3/03545 (2013.01) [G06F 1/1607 (2013.01); G06F 1/1698 (2013.01); G06F 1/266 (2013.01); G06F 3/021 (2013.01); G06F 3/0231 (2013.01); G06F 3/038 (2013.01); G06F 3/0383 (2013.01); G06F 3/0412 (2013.01); G06F 3/04162 (2019.05); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05); G06F 3/04842 (2013.01); G06F 3/04883 (2013.01); G06F 40/166 (2020.01); H02J 7/342 (2020.01); H02J 50/10 (2016.02); H02J 50/80 (2016.02); H04W 72/21 (2023.01); H04W 72/23 (2023.01); G06F 3/0202 (2013.01); G06F 2200/1632 (2013.01); G06F 2203/0384 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, comprising:
sending, by a stylus, a downlink signal to an electronic device based on a third refresh rate;
sampling, by the electronic device after being wirelessly connected to the stylus, the downlink signal from the stylus based on the third refresh rate, wherein the third refresh rate is equal to a second refresh rate supported by the electronic device, and wherein the second refresh rate is greater than a first refresh rate supported by the electronic device;
sending an uplink signal to the stylus at the first refresh rate;
sampling a user signal based on the second refresh rate, wherein the user signal is a signal that indicates that the user touches a touch screen of the electronic device; and
sampling the uplink signal from the electronic device at a fourth refresh rate, wherein the fourth refresh rate is a least common multiple of the first refresh rate and the second refresh rate,
wherein a first uplink signal is any uplink signal from the electronic device, and
wherein after sampling the user signal based on the second refresh rate, the method further comprises continuing to sample the user signal until the electronic device sends a second uplink signal, wherein the second uplink signal is a first signal following the first uplink signal.