09354748 is referenced by 7 patents and cites 1170 patents.

Optical stylus interaction techniques are described. In an implementation, a display of a computing device includes optical sensors capable of detecting images projected by a stylus. A stylus may include a projection system to project various images used to convey interaction information that may be interpreted by the computing device. Based on recognition of different projected images, a context for interaction of the stylus may be ascertained and corresponding operations may be performed by the computing device. This may include resolving a spatial position of the stylus relative to the display device as well as movement of the stylus and images that defines various stylus-based gestures. In addition, the environment for optical stylus interaction enables a writing mode that emulates natural writing by mapping different projectable images to changes in pressure applied to the stylus when in contact with the display.

Title
Optical stylus interaction
Application Number
13/371725
Publication Number
9354748 (B2)
Application Date
February 13, 2012
Publication Date
May 31, 2016
Inventor
Steven Nabil Bathiche
Kirkland
WA, US
Karlton D Powell
Lake Stevens
WA, US
Liang Wang
Sammamish
WA, US
John M Lutian
Bellevue
WA, US
Agent
Micky Minhas
Judy Yee
Brandon Roper
Assignee
Microsoft Technology Licensing
VA, US
IPC
G06F 3/0354
G06F 3/042
G06F 3/033
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