Sensing device with identifier

Details Sensing device with identifier Sensing device with identifier

2002-11-12

2004-07-27

Boudreau, Leo (Department: 2621)

Image analysis

Image sensing

Hand-held

C382S312000, C382S314000, C382S188000

Reexamination Certificate

active

06768821

ABSTRACT:

FIELD OF INVENTION
The present invention relates to a sensing device for capturing information applied freehand and particularly, but not exclusively, to a sensing device which can capture drawing or writing information applied freehand by a user to a surface.
The invention has been developed primarily to allow a large number of distributed users to interact with networked information and applications via printed matter and hand-held optical sensors, thereby to obtain interactive printed matter on demand via high-speed networked color printers. Although the invention will largely be described herein with reference to this use, it will be appreciated that the invention is not limited to use in this field.
CO-PENDING APPLICATIONS
Various methods, systems and apparatus relating to the present invention are disclosed in the following co-pending applications filed by the applicant or assignee of the present invention on May 23, 2000:
09/575,197
09/575,195
09/575,159
09/575,132
09/575,123
09/575,148
09/575,130
09/575,165
09/575,153
09/575,118
09/575,131
09/575,116
09/575,144
09/575,139
09/575,186
09/575,185
09/575,191
09/575,145
09/575,192
09/609,303
09/610,095
09/609,596
09/575,181
09/575,193
09/575,156
09/575,183
09/575,160
09/575,150
09/575,169
09/575,184
 6,502,614
09/575,180
09/575,149
 6,549,935
09/575,187
09/575,155
 6,591,884
 6,439,706
09/575,196
09/575,198
09/575,178
 6,428,155
09/575,146
09/608,920
09/575,174
09/575,163
09/575,168
09/575,154
09/575,129
09/575,124
09/575,188
09/575,189
09/575,162
09/575,172
09/575,170
09/575,171
09/575,161
10/291,716
 6,428,133
 6,527,365
 6,315,699
 6,338,548
 6,540,319
 6,328,431
 6,328,425
09/575,127
 6,383,833
 6,464,332
 6,390,591
09/575,152
 6,328,417
 6,409,323
 6,281,912
 6,604,810
09/575,112
 6,488,422
09/575,108
09/575,109.
The disclosures of these co-pending applications are incorporated herein by reference.
BACKGROUND
Presently, a user of a computer system typically interacts with the system using a monitor for displaying information and a keyboard and/or mouse for inputting information. Whilst such an interface is powerful, it is relatively bulky and non-portable. Information printed on paper can be easier to read and more portable than information displayed on a computer monitor. However, unlike a keyboard or mouse, a pen on paper generally lacks the ability to interact with computer software.
OBJECT
It is an object of the present invention to combine advantages of pen on paper and computer systems.
SUMMARY OF INVENTION
The present invention relates to a sensing device for sensing region identity data and generating movement data when the sensing device is moved relative to a region of a surface, the region identity data being indicative of an identity of the region, the movement data being indicative of the movement of the sensing device relative to the region, the surface having disposed upon it coded data indicative of at least one region associated with the surface, the sensing device including:
region identity sensing means configured to sense the region identity data using at least some of the coded data;
motion sensing means configured to generate the movement data; and
communications means configured to communicate the region identity data and the movement data to a computer system.
Preferably, the motion sensing means is configured to generate the movement data using at least some of the coded data.
More preferably, the coded data is also indicative of a plurality of reference points of the region, the motion sensing means being configured to generate the movement data on the basis of the sensing device's movement relative to at least one of the reference points.
In an alternative embodiment, the coded data includes periodic elements, the motion sensing means being configured to generate the movement data on the basis of the sensing device's movement relative to at least one of the periodic elements.
In a further embodiment, the movement sensing means includes at least one acceleration sensing means, the acceleration sensing means being configured to sense acceleration of the sensing device as it is moved relative to the surface region, the movement sensing means being configured to generate the movement data by periodically sampling the acceleration.
Features and advantages of the present invention will become apparent from the following description of embodiments thereof, by way of example only, with reference to the accompanying drawings.


REFERENCES:
patent: 6201903 (2001-03-01), Wolff et al.
patent: 6212296 (2001-04-01), Stork et al.
patent: 2306669 (1997-05-01), None

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