06310615 is referenced by 51 patents and cites 106 patents.

A method and apparatus for transcribing composite images. In one embodiment, a method comprises projecting a first image onto a surface, wherein a first coordinate system defines positions within the first image and a second coordinate system defines positions on the surface. The method further comprises forming a second image on the surface by using a stylus, and recording the formation of the second image relative to the first image by periodically detecting the position of the stylus relative to the second coordinate system by receiving and processing signals transmitted from the stylus. The method also comprises translating the position of the stylus relative to the second coordinate system to a position relative to the first coordinate system, and storing the composite image comprising the first image and the second image as machine-readable data.

Title
Dual mode eraser
Application Number
9/667195
Publication Number
6310615 (B1)
Application Date
September 21, 2000
Publication Date
October 30, 2001
Inventor
Matthew D Verminski
Cambridge
MA, US
William P Moyne
Cambridge
MA, US
Andrew Kelley III
Somerville
MA, US
Yonald Chery
Somerville
MA, US
Richard C Davis
Cambridge
MA, US
Assignee
Virtual Ink Corporation
MA, US
IPC
G09G 5/00
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