Microsoft Technology Licensing, LLC

Intentional Software Corporation

Andras Nagy

Charles Simonyi

Paul J Kwiatkowski

Jeremy M Price

Nicholas J Wilson

Alexander K Horton

Eran Megiddo

Travis Paul Dorschel

Joshua M Smithrud

Craig A Macomber

Taylor S Williams

Simon J Schaffer

Christine M Johnson

Michael Tang

Alexander Elijah Pardes

A layout engine generates a visual layout tree for a visual description tree of a document whose content is to be rendered in one or more display areas. A visual description tree describes the content of a document along with formatting and logical arrangement the content. Visual description nodes of a visual description tree represent the organization of the constituent elements a document hierarchically. A visual layout tree defines the layout of a document within one or more display areas. Visual layout nodes of a visual layout tree represent the layout of the content of a document hierarchically. The layout engine receives as input a visual description tree and generates the corresponding visual layout tree. A rendering engine then inputs the visual layout tree and generates a graphics buffer containing the pixels representing the layout of the document as defined by the visual layout tree.

Adding visual description nodes to a visual description tree during layout

Groupware features are described that support asynchronous collaboration for a synchronous collaboration environment. During a synchronous collaboration session, a document is displayed at a user's computing device. As changes to the document are received at the user's computing device, a change list is updated and the modified document is displayed. Any changes from the user are broadcast to other participants. For asynchronous collaboration during the session, a user-specific fork is created in the change list to contain private changes for the user. For each private change from the user, the groupware updates the change list in the user-specific fork with the private change, which is not broadcast to the other participants for reconciliation.

Providing a private mode in asynchronous collaboration for a synchronous collaboration environment

Detecting and animating a change in position of a visual layout node of a visual layout tree

Linking visual layout nodes of a visual layout tree using positioning pointers

Layout engine for creating a visual layout tree for a document

Techniques and systems for applying an ink effect to the drawing of an ink stroke can include absolute age for a digital ink stroke. A digital ink system can identify a reference time from which to represent a current time. The system can generate an absolute age of each ink point of the ink stroke based on the reference time. Then the ink effect can be applied to the ink stroke with a rhythm derived from when the ink stroke was originally drawn by using the absolute age of each ink point. In some cases, the rhythm can be the same rhythm as when the ink stroke was originally drawn. In other cases, the rhythm can be modified based on the rhythm the ink stroke was originally drawn. For example, the original rhythm may be accelerating, decelerating, skewed, compressed, affine, or non-affine.

Absolute age for a digital ink stroke

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Bellevue, WA, United States of America

Andras Nagy