US 11,972,068 B2
Stylus for electronic devices
Aidan N. Zimmerman, Sunnyvale, CA (US); Wingshan Wong, Mountain View, CA (US); Kevin Armendariz, San Francisco, CA (US); Nathan Bohney, Campbell, CA (US); Christopher Pasma, Mountain View, CA (US); Mahmoud Amini, Sunnyvale, CA (US); Brenton A. Baugh, Los Altos Hills, CA (US); and Ryan P. Brooks, Menlo Park, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Feb. 7, 2023, as Appl. No. 18/106,935.
Application 18/106,935 is a continuation of application No. 17/497,758, filed on Oct. 8, 2021, granted, now 11,604,523.
Application 17/497,758 is a continuation of application No. 16/869,422, filed on May 7, 2020, granted, now 11,169,628, issued on Nov. 9, 2021.
Application 16/869,422 is a continuation of application No. 16/276,462, filed on Feb. 14, 2019, granted, now 10,684,708, issued on Jun. 16, 2020.
Application 16/276,462 is a continuation of application No. 15/259,898, filed on Sep. 8, 2016, granted, now 10,310,639, issued on Jun. 4, 2019.
Claims priority of provisional application 62/215,620, filed on Sep. 8, 2015.
Claims priority of provisional application 62/309,816, filed on Mar. 17, 2016.
Prior Publication US 2023/0195246 A1, Jun. 22, 2023
Int. Cl. G06F 3/038 (2013.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01)
CPC G06F 3/0383 (2013.01) [G06F 3/03545 (2013.01); G06F 3/0414 (2013.01); G06F 3/0416 (2013.01); G06F 3/04162 (2019.05); G06F 2203/04105 (2013.01); G06F 2203/04107 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A stylus comprising:
a control board;
a ring-field generator;
a ring signal line operatively connecting the ring-field generator to the control board, wherein a diameter of the ring-field generator is greater than a diameter of the ring signal line;
a tip-field generator;
a tip signal line extending through the ring-field generator and operatively connecting the tip-field generator to the control board, the tip signal line being electrically isolated from the ring signal line;
a ground ring, wherein the tip signal line extends through the ground ring; and
a ground signal line extending through the ring-field generator and disposed between the ring signal line and the tip signal line and operatively connecting the ground ring to the control board, the ground signal line being configured to provide electromagnetic shielding between the tip signal line and the ring signal line, wherein a diameter of the ground ring is greater than a diameter of the ground signal line.