Variable-size sensing system and method for redefining size of sensing region thereof

A sensing area and sensing system technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of inconvenience, general products and methods without suitable structures and methods, etc.

Inactive Publication Date: 2010-08-11
PIXART IMAGING INC
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Problems solved by technology

[0004] However, since the image sensing devices 120 and 130 are fixed (or embedded) in the panel 110, the distance between the two image sensing devices is fixed, so as long as the size of the panel 110 is selected, the user can input coordinates The size of the area (that is, the size of the sensing area) is fixed and cannot be changed
[0005] It can be seen that the above-mentioned existing sensing system and the method for defining the size of the sensing region obviously stil

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  • Variable-size sensing system and method for redefining size of sensing region thereof

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[0076] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the variable-size sensing system proposed according to the present invention and its redefinition of the size of the sensing area are discussed below in conjunction with the accompanying drawings and preferred embodiments. The specific implementation, structure, method, steps, features and effects of the method are described in detail below.

[0077] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of the specific implementation mode, when the technical means and functions adopted by the present invention to achieve the predetermined purpose can be obtained a deeper and more specific understanding, but the accompanying drawings are only for reference ...

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Abstract

The invention relates to a variable-size sensing system and a method for redefining the size of a sensing region thereof. The sensing system comprises four elements which are connected with each other to form a framework, a mark and two image sensing devices, wherein the lengths of two of the elements are variable to adjust the size of the framework; and the inner edge of the framework is used for defining a parallelogram sensing region. The sensing system has a first using state and a second using state, and the sensing region presents a first size and a second size correspondingly to the first using state and the second using state respectively, wherein the first size is decided internally, the second size is greater than the first size, and the mark is used for marking a fixed length. When the sensing system turns to the second using state from the first using state, the mark sensed by the two image sensing devices can be used for redefining the size of the sensing region.

Description

technical field [0001] The invention relates to the field of object position sensing, in particular to a variable-size sensing system and a method for redefining the size of a sensing area. Background technique [0002] see figure 1 As shown, it shows a conventional sensing system (sensing system). In addition to a panel 110 , the sensing system 100 also includes image sensing devices 120 and 130 , and a processing circuit 140 . The panel 110 has a touch surface 112 , and the shape of the touch surface 112 is a rectangle. The image sensing devices 120 and 130 are located on the same boundary of the touch surface 112, and are respectively arranged at different corners of the touch surface 112, so that the sensing ranges of the two image sensing devices cover the touch surface 112 respectively. . In addition, the image sensing devices 120 and 130 are both coupled to the processing circuit 140 . [0003] When a pointer 150 touches (or approaches) the touch surface 112 , th...

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Application Information

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IPC IPC(8): G06F3/041G06F3/042
Inventor 林卓毅郑信基吕志宏柯怡贤
Owner PIXART IMAGING INC
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