Abstract: In a multi-user, collaborative environment, an operating system state change can occur by passing a stylus pen from one user to another. Upon detecting a change of the active user, a state machine transition can result in a change in a user experience. In one example, a change in the user experience includes a change in user interface (UI) functionality. Some examples include changing color of the digital ink being displayed, changing a handwriting pattern, and automatically switching a view displayed on the user interface. The switched view can be switching from a single-user model to a multi-user model. In another example, a state machine transition can result in establishing connections between devices (e.g., phones or laptops) associated with the users that used the pen.

Abstract: A technique is described herein for decoupling the playback of media content streams that compose a media item. In one implementation, the technique involves: in a synchronized state, presenting a stream of first media content (such as audio content) in synchronization with a stream of second media content (such as video content); detecting a desynchronization event; in response to the desynchronization event, transitioning from the synchronized state to a desynchronized state by changing (e.g., slowing) a rate at which the stream of second media content is presented, relative to the stream of first media content; detecting a resynchronization-initiation event; and, in response to the resynchronization-initiation event, returning to the synchronized state by providing a compressed presentation of the stream of second media content. The technique further involves presenting the stream of first media content at a given non-zero rate while in the desynchronized state.

Abstract: In a multi-user, collaborative environment, an operating system state change can occur by passing a stylus pen from one user to another. Upon detecting a change of the active user, a state machine transition can result in a change in a user experience. In one example, a change in the user experience includes a change in user interface (UI) functionality. Some examples include changing color of the digital ink being displayed, changing a handwriting pattern, and automatically switching a view displayed on the user interface. The switched view can be switching from a single-user model to a multi-user model. In another example, a state machine transition can result in establishing connections between devices (e.g., phones or laptops) associated with the users that used the pen.