The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2023
Filed:
Jun. 28, 2021
Apple Inc., Cupertino, CA (US);
Jean Hsiang-Chun Lu, Sunnyvale, CA (US);
Bosheng Zhang, Sunnyvale, CA (US);
Kathrin Berkner Cieslicki, Los Altos, CA (US);
Manohar B. Srikanth, Mountain View, CA (US);
Noah D. Bedard, Los Gatos, CA (US);
Ting Sun, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A device such as a stylus may have a color sensor. The color sensor may have a color sensing light detector having a plurality of photodetectors each of which measures light for a different respective color channel. The color sensor may also have a light emitter. The light emitter may have an adjustable light spectrum. The light spectrum may be adjusted during color sensing measurements using information such as ambient light color measurements made with a color ambient light sensor that has a plurality of photodetectors each of which measures light for a different respective color channel. An inertial measurement unit may be used to measure the angular orientation between the stylus and an external object during color measurements. Arrangements in which the light emitter is modulated during color sensing may also be used. Measurements from the stylus may be transmitted wirelessly to external equipment.