Microsoft Corporation
Multi-protocol Coexistence in an Active Stylus

Abstract:

A method, computing system, and one or more computer-readable storage media for operating an active stylus equipped with a stylus capture detection routine. The method includes operating the stylus according to a first communication protocol to enable communication with a first display device. The method also includes detecting a beacon from a second display device operating according to a second communication protocol. The method also includes automatically switching the stylus to the second communication protocol in response to detecting the beacon. The method also includes detecting a stylus capture event indicating that switching the stylus to the second communication protocol was erroneous and is preventing the user from communicating with the first display device and, in response to detecting the stylus capture event, switching the stylus back to the first communication protocol.