US 12,314,489 B2
Computer system with color sampling stylus
Nicholas C. Lewty, Singapore (SG); Mahdi Nezamabadi, San Jose, CA (US); Po-Chieh Hung, Sunnyvale, CA (US); and Tze Yong Poh, Singapore (SG)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jul. 30, 2021, as Appl. No. 17/390,641.
Application 17/390,641 is a continuation of application No. 16/682,857, filed on Nov. 13, 2019, granted, now 11,126,281.
Claims priority of provisional application 62/792,321, filed on Jan. 14, 2019.
Prior Publication US 2021/0357044 A1, Nov. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06F 3/04883 (2022.01)
CPC G06F 3/03545 (2013.01) [G06F 3/04162 (2019.05); G06F 3/04883 (2013.01)] 20 Claims
OG exemplary drawing
 
19. A stylus configured to measure an external object, comprising:
an elongated housing with a tip and an opposing end;
a color sensor in the elongated housing, wherein the color sensor comprises a light-emitting component and a light-detecting component;
light guide structures that guide light emitted by the light-emitting component to the tip and that guide light from the tip to the light-detecting component; and
control circuitry configured to gather color measurements of the external object using the color sensor, wherein at least some of the color measurements are gathered while the light-emitting component is turned off.