Patent ID: 11886650
Assignee: APPLE INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A tracking system comprising:
a stylus comprising multiple light emitters, each of the light emitters having a size that is different than a size of every other one of the light emitters, wherein the light emitters comprise a first light emitter and a second light emitter, wherein the second light emitter is spaced apart from the first light emitter along a length of the stylus, wherein the first and second light emitters are configured to emit different wavelengths of light; and
a head-mounted device comprising:
an optical sensor configured to detect the light emitters; and
a processor communicatively coupled to the optical sensor and configured to:
determine a position of the stylus based on a detection of the light emitters; and
disambiguate an orientation of the stylus based on a relative position of the different emitted wavelengths.