US 6,310,615 B1Granted

Dual mode eraser

AssigneeVirtual Ink Corporation

InventorsRichard C. Davis, Yonald Chery, Andrew Kelley, III, William P. Moyne, Matthew D. Verminski

Life of this patent

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Abstract

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.

Claims10

Dependent claims

An eraser for use in a transcription system which includes a plurality of signal receivers for positioning adjacent a writing surface and for receiving position signals transmitted from the eraser when the eraser is positioned adjacent the writing surface, the transcription system using times of flight of the position signals to determine a position of the eraser adjacent the writing surface, the eraser comprising:

an eraser body;
a first eraser pad attached to the eraser body for erasing writing on the writing surface;
a first position signal transmitter attached to the eraser body adjacent the first eraser pad for transmitting position signals when the first eraser pad contacts the writing surface;
a second eraser pad attached to the eraser body at a different location than the first eraser pad for erasing writing on the writing surface;
and
a second position signal transmitter attached to the eraser body adjacent the second eraser pad for transmitting position signals when the second eraser pad contacts the writing surface.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/667,195Filed 21 Sep 2000 · continuation
Priority: 14 May 1998
Granted: 30 Oct 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 3/0418
Control or interface arrangements specially adapted for digitisers: for error correction or compensation, e.g. based on parallax, calibration or…
G06F 3/03545
With detection of two-dimensional [2D] relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D…
G06F 3/043
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: using propagating acoustic waves
G06F 3/0433
Using propagating acoustic waves: in which the acoustic waves are either generated by a movable member and propagated within a surface layer or…

Family

Application09/079,430Parent of this continuation-in-part · filed 14 May 1998
Application60/090,744Us provisional application · filed 26 Jun 1998
Application60/109,361Us provisional application · filed 20 Nov 1998
Application09/273,887Parent of this continuation-in-part · filed 22 Mar 1999
Application09/589,534Parent of this continuation · filed 7 Jun 2000
Application09/589,534Parent of this continuation-in-part
US 6,191,778 B1Parent of this continuation-in-part
US 6,104,387 AParent of this continuation-in-part
US 6,232,962 B1Related patent
US 6,310,615 B1This patent

From the US filing history. Foreign family members aren’t listed.