Variable size sensing system and method for redefining size of sensing area thereof

US8976159B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8976159-B2
Application numberUS-47983609-A
CountryUS
Kind codeB2
Filing dateJun 7, 2009
Priority dateDec 22, 2008
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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Abstract

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In a variable size sensing system and a method for redefining the size of a sensing area thereof, the sensing system includes four elements, a mark and two image sensing devices. The four elements are consecutively connected and thereby forming a frame. Two of the four elements have variable lengths so as to adjust the size of the frame. The inner edge of the frame defines a sensing area of a parallelogram shape. The sensing system has a first and a second working mode. The sensing area has a first size and a second size when the sensing system is in the first working mode and the second working mode respectively, wherein the first size is predetermined and smaller than the second size. The mark is used to mark a fixed length. When the sensing system is changed from the first working mode to the second working mode, the mark sensed by the image sensing devices can be utilized to redefine the size of the sensing area in the sensing system.

First claim

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What is claimed is: 1. A variable size sensing system comprising: a first element; a second element; a third element; a fourth element, the first, second, third and fourth elements being consecutively connected and thereby forming a first frame, the first element and the third element being capable of increasing their lengths in a predetermined direction so that the size of the first frame can be adjusted and forms a second frame, the inner edge of the first frame defining a…

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What does patent US8976159B2 cover?
In a variable size sensing system and a method for redefining the size of a sensing area thereof, the sensing system includes four elements, a mark and two image sensing devices. The four elements are consecutively connected and thereby forming a frame. Two of the four elements have variable lengths so as to adjust the size of the frame. The inner edge of the frame defines a sensing area of a p…
Who is the assignee on this patent?
Lin Cho-Yi, Cheng Hsin-Chi, Lu Chih-Hung, and 2 more
What technology area does this patent fall under?
Primary CPC classification G06F3/0421. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).