The assignee for this patent, patent number 8525777, is
Reporters obtained the following quote from the background information supplied by the inventors: "An optical computer mouse uses a light source and image sensor to detect mouse movement relative to an underlying tracking surface to allow a user to manipulate a location of a virtual pointer on a computing device display. Light from the light source is directed onto the tracking surface, and the image sensor is used to acquire a series of image of the tracking surface. Movement is tracked by tracking changes in the location(s) of one or more surface features identified in the images via a controller.
"An optical mouse relies upon the presence of some degree of surface roughness to allow for the detection of tracking features on a surface. However, surfaces such as glass may not have enough surface roughness to allow motion to be reliably tracked. Various solutions to this problem have been proposed. For example, some proposed solutions may utilize a secondary device (e.g. a 'puck') placed on a surface to allow tracking to be accomplished via triangulation. However, the use of such a secondary device may be inconvenient for a user, and add additional cost to such a mouse."
In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventors' summary information for this patent: "Accordingly, various embodiments are disclosed herein that are related to computer mice configured to track motion on smooth surfaces, such as glass surfaces. For example, one disclosed embodiment provides an optical mouse comprising a light source configured to illuminate a tracking surface, an image sensor, an array of lenses configured to superimpose a plurality of images of spatially different areas of the tracking surface onto the image sensor, and a controller configured to receive a plurality of time-sequenced frames of image data from the image sensor, to detect motion of the mouse on the tracking surface from movement of one or more tracking features in the plurality of time-sequenced frames of image data, and to output a motion signal.
"This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Furthermore, the claimed subject matter is not limited to implementations that solve any or all disadvantages noted in any part of this disclosure."
For more information, see this patent: Stavely, Donald J.; Bohn, David D.. Tracking Motion of Mouse on Smooth Surfaces. U.S. Patent Number 8525777, filed
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