07812828 is referenced by 149 patents and cites 302 patents.

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.

Title
Ellipse fitting for multi-touch surfaces
Application Number
11/677958
Publication Number
7812828 (B2)
Application Date
February 22, 2007
Publication Date
October 12, 2010
Inventor
John G Elias
Townsend
DE, US
Wayne Westerman
San Francisco
CA, US
Agent
Morrison & Foerster
Assignee
Apple
CA, US
IPC
G06F 3/041
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