Sensing device for sensing a position within a region
First Claim
1. A sensing device for sensing a region provided on or in a surface, the surface including at least one region, having printed therein or thereon coded data indicative of an identity of the at least one region, and visible information at least some of the information being at least partially related to the at least one region, the coded data including a number of data portions, each data portion in the at least one region having an identical data portion identity, the sensing device including:
- a sensor for;
sensing a number of images of the coded data when the sensing device is placed in an operative position relative to the at least one region;
comparing the images to determine common features in sequential images; and
determining movement of the sensing device relative to the at least one region by determining changes in position of the common features between the sequential images; and
generating, using the sensed coded data, indicating data at least partially indicative of the identity of the at least one region; and
,a communicator configured to communicate the indicating data to a computer system.
1 Assignment
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Accused Products
Abstract
A sensing device for sensing a region provided on or in a surface having at least one region. The at least one region having printed therein or thereon coded data indicative of an identity of the at least one region, and visible information at least some of the information being at least partially related to the at least one region. The sensing device includes a sensor for sensing at least some of the coded data when the sensing device is placed in an operative position relative to the at least one region and generating indicating data. The indicating data is at least partially indicative of the identity of the at least one region and at least one of movement and a position of the sensing device relative to the at least one region. The sensing device includes a communicator configured to communicate the indicating data to a computer system.
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Citations
18 Claims
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1. A sensing device for sensing a region provided on or in a surface, the surface including at least one region, having printed therein or thereon coded data indicative of an identity of the at least one region, and visible information at least some of the information being at least partially related to the at least one region, the coded data including a number of data portions, each data portion in the at least one region having an identical data portion identity, the sensing device including:
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a sensor for; sensing a number of images of the coded data when the sensing device is placed in an operative position relative to the at least one region; comparing the images to determine common features in sequential images; and determining movement of the sensing device relative to the at least one region by determining changes in position of the common features between the sequential images; and generating, using the sensed coded data, indicating data at least partially indicative of the identity of the at least one region; and
,a communicator configured to communicate the indicating data to a computer system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of sensing a region provided on or in a surface, the surface including at least one region having printed therein or thereon coded data indicative of an identity of the at least one region, and visible information at least some of the information being at least partially related to the at least one region, the coded data including a number of data portions, each data portion in the at least one region having an identical data portion identity, the method including:
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in a sensor; sensing a number of images of the coded data when the sensing device is placed in an operative position relative to the at least one region; comparing the images to determine common features in sequential images; and determining movement of the sensing device relative to the at least one region by determining changes in position of the common features between the sequential images; and generating, using the sensed coded data, indicating data at least partially indicative of the identity of the at least one region; and communicating the indicating data to a computer system.
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Specification