TWI550474B - Electronic apparatus - Google Patents

Description

Electronic equipment

The invention relates to an electronic device, in particular to an electronic device configured with a portable optical touch system.

"Fig. 1" is a perspective view of a conventional optical touch system. Please refer to FIG. 1 . The optical touch system 100 includes a panel 104 , image sensing modules 106 and 108 , a processing circuit 110 , a reflective component 112 , a reflective component 114 , and a reflective component 116 . In addition, the quadrilateral area indicated by the symbol 118 in the figure is used as the touch area of the optical touch system 100, and the image sensing modules 106 and 108 are two different ones disposed in the touch area 118. The corners enable the sensing ranges of the two image sensing modules to cover the touch area 118, respectively. In this example, the touch area 118 has a quadrangular shape and is preferably rectangular. The symbol 102 in the figure refers to an object.

In these components of the optical touch system 100, the reflective element 112, the reflective element 114 and the reflective element 116 are composed of a retro-reflective material, which are used to reflect incident light (such as infrared light) to the touch. Within area 118. The image sensing modules 106 and 108 are used to capture images in the touch area 118. The processing circuit 110 is configured to receive the images captured by the image sensing modules 106 and 108, and calculate the objects 102 in the image relative to the images according to the images captured by the image sensing modules 106 and 108. The coordinates of the control area 118.

"Fig. 2" is an explanatory diagram of a single touch of the optical touch system of "Fig. 1". In "Fig. 2", the same symbols as those in "Fig. 1" are indicated as the same members. As shown in FIG. 2 , the image sensing module 106 can sense the object 102 along the sensing route 202 , and the image sensing module 108 can sense the object 102 along the sensing route 204 . Therefore, the coordinates of the object 102 can be obtained as long as the processing circuit 110 can obtain the linear equations of the sensing routes 202 and 204 and calculate the intersection of the sensing paths 202 and 204.

In the following, a description will be given of how the optical touch system 100 obtains the linear equations of the sensing routes 202 and 204, which will be explained first from the configuration of the image sensing modules 106 and 108.

Taking the image sensing module 106 as an example, the structure is as shown in FIG. 3 . FIG. 3 is a schematic structural view of the image sensing module 106. Referring to FIG. 3 , the image sensing module 106 includes an infrared light emitting device 302 , an optical lens set 304 , an infrared light filtering device 306 that can only pass infrared light, and an image sensor 308 . The infrared light emitting device 302 is configured to emit infrared light to illuminate the touch area 118, the reflective element 112, the reflective element 114 and the reflective element 116, and the image sensor 308 is configured to sequentially pass through the infrared light filtering device 306. The optical lens set 304 captures the image in the touch area 118 to transfer the acquired image to the processing circuit 110. When the object 102 is located in the touch area 118, the image sensing module 106 can acquire the image containing the object 102, as shown in FIG.

FIG. 4 is a schematic diagram of an image sensed by the image sensing module 106. In the "figure 4", the white area indicated by the symbol 402 is a bright zone in which the light reflected by the infrared light emitting device 302 emits infrared light to illuminate the reflective elements 114 and 116 to form a brighter light in the image. This bright area 402 is the main sensing area. The symbol 404 is the dark area caused by the object 102 shielding the bright area 402. As can be seen from "Fig. 2" and "Fig. 4", as long as the processing circuit 110 The linear equation of the sensing route 202 can be further calculated by knowing the angle α (the angle between the sensing route 202 and the upper side of the touch area 118) and the center of gravity or center of the dark area 404. Similarly, the processing circuit 110 can also calculate the linear equation of the sensed route 204 in the same manner. The coordinates of the object 102 are the intersections of the sensing routes 202 and 204.

The optical touch system shown in Figure 1 can perform similar mouse and keys. A function such as a disk or a touchpad for a user input interface of a computer allows the user to perform an input operation directly with a finger. However, since the optical touch system 100 must have a physical panel 104, a reflective element 112, a reflective element 114, and a reflective element 116 to operate, the use environment is limited. Moreover, the price of the physical panel 104, the reflective element 112, the reflective element 114, and the reflective element 116 is not cheap, making the cost of such an optical touch system high. In addition, since the panel 104 has a certain volume, and the reflective element 112, the reflective element 114 and the reflective element 116 also have a certain length, the size of the optical touch system 100 cannot be reduced to be smaller and is convenient to carry.

It can be seen from the foregoing that the use environment, cost, volume and portability are problems to be solved by the existing optical touch system 100.

In view of this, the present invention provides an electronic device, thereby effectively increasing the convenience of using and accommodating a portable optical touch system.

The invention provides an electronic device comprising an electronic device and a portable optical touch system. The electronic device has an auxiliary device and a groove, the auxiliary device has a use state and a storage state, and the groove is used to receive the auxiliary device. The portable optical touch system is connected to the auxiliary device, wherein in the use state, the auxiliary device portable optical touch system is moved out to the outside of the groove, and in the storage state, the auxiliary device portable optical touch system is moved into the The inside of the groove. Among them, portable The optical touch system includes a first image sensing module, a second image sensing module, a length adjustable connecting device, a communication interface and a processing circuit. The sensing range of the image sensing module is partially overlapped, and the partially overlapped area is used to define the touch area. The length adjustable connection device is connected to the first image sensing module and the second image sensing module for adjusting the distance between the first image sensing module and the second image sensing module. When an object is located in the touch area, the processing circuit calculates the coordinates of the object according to the image sensed by the image sensing module, and outputs the coordinate through the communication interface.

In an embodiment, the aforementioned electronic device further includes a slide rail and a snap element. Slide rail Located in the trench for configuring the auxiliary device and the portable optical touch system, the auxiliary device moves the portable optical touch system out of the trench or into the interior of the trench along the slide rail. The snap element is used to hold the auxiliary device when the auxiliary device moves the portable optical touch system into the interior of the groove.

In an embodiment, the aforementioned electronic device further includes a resilient member. The elastic member is disposed on the slide rail to drive the auxiliary device to remove the portable optical touch system from the outside of the groove.

In an embodiment, the aforementioned electronic device further includes a pushing element. The urging member is exposed outside the electronic device and coupled to the snap member for urging the snap member to separate the snap member from the auxiliary device.

In an embodiment, the aforementioned electronic device further includes a limiting component. The limiting elements are disposed on opposite sides of the slide rail to define a moving position of the auxiliary device.

In an embodiment, the portable optical touch system is pivoted to the auxiliary device.

In an embodiment, the length adjustable connection device comprises a first positioning element and a second positioning element. The first positioning element has a projection. The second positioning element has a plurality of grooves, and the grooves are arranged in sequence, and the grooves respectively correspond to the protrusions. Among them, when the length can be adjusted When the connecting device moves, the protruding portion is engaged with one of the grooves to adjust the distance between the first image sensing module and the second image sensing module.

In an embodiment, the aforementioned first positioning element is an elastic structure.

In an embodiment, the aforementioned auxiliary device includes a locking element and a rotating element. The locking element is used to lock the rotatable device to the electronic device. The rotating component connects the locking component to the portable optical touch system.

In an embodiment, the aforementioned rotating element comprises a third positioning element and a fourth positioning element. The third positioning element is disposed on the locking element, and the third positioning element has a protrusion. The fourth positioning component is disposed on the locking component, the fourth positioning component has a plurality of grooves, and the grooves of the fourth positioning component are arranged in sequence, and the grooves of the fourth positioning component respectively correspond to the convexity of the third positioning component Out. Wherein, when the rotating component drives the portable optical touch system to rotate, the protruding portion of the third positioning component is engaged with one of the grooves of the fourth positioning component to adjust the moving angle of the portable optical touch system. .

In an embodiment, the aforementioned third positioning element is an elastic structure.

In an embodiment, the aforementioned electronic device includes a pushing element. The urging component is exposed outside the electronic device and adjacent to the portable optical touch system for pushing the portable optical touch system to partially remove the exterior of the trench.

In the electronic device provided by the embodiment, the portable optical touch system is removed from the outside of the trench (ie, the outside of the electronic device) in the use state, and the portable device is in the storage state. The optical touch system moves into the interior of the trench (ie, the interior of the electronic device). In this way, the convenience of using and accommodating the portable optical touch system can be effectively increased.

The above description of the contents of the present invention and the following embodiments are explained. The spirit and principle of the invention are illustrated and explained, and a further explanation of the scope of the patent application of the invention is provided.

100‧‧‧ optical touch system

102, 502‧‧‧ objects

104‧‧‧ panel

106, 108, 510, 530‧‧‧ image sensing module

110, 570‧‧‧ processing circuit

112, 114, 116‧‧‧reflective elements

118‧‧‧ Touch area

202, 204, 902, 904‧‧‧ Sensing routes

302, 518, 538‧‧‧ Infrared light emitting device

304, 516, 536‧‧ ‧ optical lens set

306, 514, 534‧‧‧ Infrared light filter

308, 512, 532‧‧ ‧ image sensor

402, 1012, 1022‧‧

404‧‧ Dark area

500‧‧‧Portable Optical Touch System

5101, 5301‧‧‧ housing

51011‧‧‧Part 1

51012‧‧‧Part II

5101A‧‧‧ bottom

5102, 5302‧‧‧Light transmission area

512A‧‧‧Image capture surface

5161, 5162, 520, 5361, 5362, 540‧‧ optical lenses

550‧‧‧ Length adjustable connection device

560, 1604‧‧‧ communication interface

582, 584, 586‧‧‧ dotted lines

590‧‧‧ touch area

802‧‧ Real working surface

1010, 1020‧‧ images

Edge of 1014, 1016, 1024, 1026‧‧

Center, center of gravity or average of objects 1018, 1028, 1018A, 1018B, 1018C‧‧

1602‧‧‧Electronic devices

1800, 2200‧‧‧ Electronic equipment

1830, 2230‧‧‧ electronic devices

1832, 2232‧‧‧ auxiliary equipment

1834, 2234‧‧‧ trench

1836‧‧‧Slide rails

1838‧‧‧Snap components

1842, 2244‧‧‧ push elements

1844‧‧‧Limiting components

1862‧‧‧First positioning element

1864‧‧‧Second positioning element

2236‧‧‧Locking components

2238‧‧‧Rotating components

2240‧‧‧ third positioning element

2242‧‧‧Four positioning element

A, B, E, F‧‧ points

D‧‧‧ farthest view

H‧‧‧ Height

L, M, R‧‧‧ areas

S1702, S1704, S1706‧‧‧ steps

α, β, α 1, β 1, θ 1, θ 2, θ 3‧‧‧ angle

FIG. 1 is a perspective view of a conventional optical touch system.

FIG. 2 is an explanatory diagram of single touch of the optical touch system of FIG. 1 .

FIG. 3 is a schematic structural diagram of the image sensing module 106.

FIG. 4 is a schematic diagram of an image sensed by the image sensing module 106.

FIG. 5 is a perspective view of a portable optical touch system according to an embodiment of the invention.

Figure 6 is also a perspective view of the portable optical touch system shown in Figure 5.

Figure 7 is a top perspective view of the portable optical touch system shown in Figure 5.

FIG. 8 is a side perspective view of the image sensing module 510.

FIG. 9 is an explanatory diagram of a single touch of the portable optical touch system shown in FIG. 7.

FIG. 10 is a schematic diagram of the processing circuit 570 receiving the image data of the two image sensors 512 and 532 and subsequent processing.

FIG. 11 is a diagram showing the position and corresponding angle of the object in the image sensed by the image sensor 512.

FIG. 12 illustrates another arrangement of internal components of the image sensing module 510.

Figure 13 illustrates how the farthest field of view is calculated.

FIG. 14 illustrates the modified portable optical touch system 500.

Figure 15 is a diagram showing the mouse function pattern defined by the processing circuit in the touch area.

FIG. 16 is a schematic diagram of the portable optical touch system of the present invention disposed in a trench of an electronic device.

Figure 17 is a diagram showing the basic flow of a method of sensing the position of an object in accordance with an embodiment of the present invention.

Figure 18 is a perspective view of an electronic device according to an embodiment of the present invention.

Figure 19 is another perspective view of the electronic device disclosed in the embodiment of the present invention.

FIG. 20 is a schematic diagram of a portable optical touch system disclosed in an embodiment of the present invention.

Figure 21 is a detailed schematic view of the length adjustable connecting device disclosed in the embodiment of the present invention.

Figure 22 is a perspective view of an electronic device according to an embodiment of the present invention.

Figure 23 is another perspective view of the electronic device disclosed in the embodiment of the present invention.

Figure 24 is a schematic diagram of an auxiliary device disclosed in an embodiment of the present invention.

Figure 25 is a perspective view of an electronic device according to an embodiment of the present invention.

Figure 26 is another perspective view of the electronic device disclosed in the embodiment of the present invention.

Figure 27 is a perspective view of an electronic device according to an embodiment of the present invention.

Figure 28 is another perspective view of the electronic device disclosed in the embodiment of the present invention.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art. The following examples are intended to describe the present invention in further detail, but are not intended to limit the scope of the invention.

Certain terms are used throughout the description and claims to refer to particular elements. Those skilled in the art should understand that hardware manufacturers may use different nouns to refer to them. The same component. The scope of the present specification and the patent application do not use the difference in the name as the means for distinguishing the elements, but the difference in function of the elements as the criterion for distinguishing. As used in the specification and the scope of the patent application, "include" is an open term and should be interpreted as "including but not limited to". "Substantially" means that within the range of acceptable errors, those skilled in the art will be able to solve the technical problems within a certain error range, substantially achieving the technical effects. In addition, the term "coupled" is used herein to include any direct and indirect electrical coupling means. Therefore, if a first device is coupled to a second device, the first device can be directly electrically coupled to the second device, or electrically coupled indirectly through other devices or coupling means. Connected to the second device. The description of the specification is intended to be illustrative of the preferred embodiments of the invention. The scope of protection of this application is subject to the definition of the scope of the appended claims.

It is also to be understood that the terms "comprises", "comprising" or "comprising" or any other variations are intended to encompass a non-exclusive inclusion, such that a process, method, article, or Other elements not explicitly listed, or elements that are inherent to such a process, method, commodity, or system. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or system including the element, without further limitation.

In the various embodiments listed below, the same or similar elements or members will be denoted by the same reference numerals.

First Embodiment: FIG. 5 is a perspective view of a portable optical touch system according to an embodiment of the present invention, and FIG. 6 is also a portable optical touch shown in FIG. Stereoscopic display of the system Intent, and "Fig. 7" is a schematic perspective view of the portable optical touch system shown in Fig. 5. Please refer to FIG. 5 and FIG. 7 . The portable optical touch system 500 includes an image sensing module 510 , an image sensing module 530 , a length adjustable connecting device 550 , and a communication interface 560 . And processing circuit 570. The image sensing module 510 has a housing 5101, and the housing 5101 has a light transmitting region 5102. The image sensing module 530 has a housing 5301, and the housing 5301 has a light transmissive area 5302. The two ends of the length adjustable connecting device 550 are respectively connected to the housings 5101 and 5301 for adjusting the distance between the image sensing modules 510 and 530.

The length adjustable connecting device 550 can adopt a multi-segment telescopic length rod structure or a slide rail structure to achieve a length adjustable function. However, the length adjustable connecting device 550 of the present invention is not limited to the above two implementations. the way. In addition, in this example, the communication interface 560 is a wired communication interface, such as a Universal Serial Bus (USB) interface, but is not limited thereto. The general serial bus interface can be USB 1.0, USB 1.1, USB 2.0 or USB 3.0. Please refer to "Fig. 6". The symbols are the same as those in the "figure 5". The "figure 6" mainly shows that the length of the length adjustable connecting device 550 can be shortened to enable the image sensing modules 510 and 530 to touch each other, so as to be convenient for the user to carry around.

Please refer to FIG. 7 , the symbols are the same as those in the “figure 5”, and the symbol 502 is represented as an object such as a user's finger or a pen. In this example, the image sensing module 510 includes an image sensor 512, an infrared light filtering device 514 that only allows infrared light to pass through, and an optical lens 5161 and 5162. The optical lens set 516, the infrared light emitting device 518, and the optical lens 520. The image sensor 512 can be a charge-coupled device (CCD) or a complementary gold-oxygen half-image sense. CMOS image sensor. The image sensor 512 can be in the form of an array or a linear form. In addition, in this example, the image sensor 512 has a viewing angle of about 30 to 45 degrees. Therefore, the image sensing module 510 must use the optical lens group 516 to amplify the viewing angle of the image sensor 512 to at least 90 degrees. In order to make the sensing range of the image sensing module 510 at least the area covered by the angle between the dotted lines 582 and 584. In optical lens set 516, each optical lens can increase the viewing angle of image sensor 512 by at least 30 degrees. As for the infrared light emitting device 518, the infrared light emitted by the infrared light emitting device 518 sequentially passes through the optical lens 520 and the light transmitting region 5102 to illuminate an area covered by the angle between the dotted lines 582 and 584, including the object 502, so that the image sensor 512 can The image is transmitted through the infrared light filtering device 514, the optical lens group 516 and the light transmitting region 5102 to obtain an image after the object 502 reflects the infrared light. This means that the shape and size of the light-transmitting region 5102 must be designed such that the image sensor 512 senses the image of the area covered by the angle between the dotted lines 582 and 584, and the light-transmitting region 5102 cannot block the infrared. The light emitting device 518 transmits the direction of travel of the infrared light emitted by the optical lens 520 such that the infrared light cannot be irradiated to any one of the regions covered by the included angle.

Similarly, the image sensing module 530 includes an image sensor 532, an infrared light filtering device 534 that only allows infrared light to pass through, and an optical device composed of optical lenses 5361 and 5362 in addition to the housing 5301. Lens group 536, infrared light emitting device 538, and optical lens 540. In this example, the image sensor 532 has a viewing angle of about 30 to 45 degrees. Therefore, the image sensing module 530 must use the optical lens group 536 to amplify the angle of view of the image sensor 532 to at least 90 degrees. The sensing range of the image sensing module 530 is at least the area covered by the angle between the dashed lines 582 and 586. In optical lens set 536, each optical lens can increase the viewing angle of image sensor 532 by at least 30 degrees.

As for the infrared light emitting device 538, the infrared light emitted by the infrared light emitting device 538 sequentially passes through the optical lens 540 and the light transmitting region 5302 to illuminate an area covered by the angle between the dotted lines 582 and 586, including the object 502, so that the image sensor 532 can The image is transmitted through the infrared light filtering device 534, the optical lens group 536 and the light transmitting region 5302 to obtain an image after the object 502 reflects the infrared light. This means that the shape and size of the light-transmitting region 5302 must be designed such that the image sensor 532 senses the image of the area covered by the angle between the dotted lines 582 and 586, and the light-transmitting region 5302 cannot block the infrared light. The light emitting device 538 transmits the direction of travel of the infrared light emitted by the optical lens 540 such that the infrared light cannot be irradiated to any one of the regions covered by the angle.

As can be seen from the above description, the angle between the dotted lines 582 and 584 is about 90 degrees, and the angle between the dotted lines 582 and 586 is also about 90 degrees. Therefore, the sensing ranges of the image sensing modules 510 and 530 are partially overlapped, and the partially overlapping regions are used to define a touch region 590. In addition, as can be seen from FIG. 7 and the above description, the image sensor 512 is disposed at a corner where the dotted lines 582 and 584 intersect, and the image sensor 532 is disposed at a corner where the dotted lines 582 and 586 intersect. That is to say, the image sensors 512 and 532 are disposed at two different corners of the touch area 590.

FIG. 8 is a side perspective view of the image sensing module 510. In "Fig. 8," the symbols are the same as those in "Fig. 5" and "Fig. 7", and the symbol 802 is represented as a real working surface. As shown in FIG. 8, the image capturing surface 512A of the image sensor 512 and the bottom surface 5101A of the housing 5101 exhibit a predetermined angle θ1, and the predetermined angle θ1 is 90 degrees. In addition, the infrared light filtering device 514, the optical lens group 516, the infrared light emitting device 518 (not shown) and the optical lens 520 (not shown) are also disposed along the predetermined angle θ 1 . Since the predetermined angle θ 1 is 90 degrees, the field of view of the image sensor 512 is theoretically infinite, that is, the depth of field of the image sensed by the image sensor 512 is theoretically infinity. However, the actual The situation depends on the physical constraints of the environment and the components themselves. In addition, if the infrared light emitted by the infrared light emitting device 518 can cover the field of view of the image sensor 512, when the object 502 enters the infrared light irradiation range, the infrared light can be reflected to make the image sensor 512 feel. Measurement.

Similarly, the image sensor 532, the infrared light filtering device 534, the optical lens group 536, the infrared light emitting device 538, and the optical lens 540 in the image sensing module 530 are also disposed in the manner shown in FIG.

Please refer to "Picture 7" again. In this example, the processing circuit 570 is disposed in the housing 5101 of the image sensing module 510 and electrically coupled to the communication interface 560, the image sensor 512, and the image sensor 532. Therefore, when the object 502 is located in the touch area 590, the image sensors 512 and 532 can obtain the image after the object 502 reflects the infrared light, and directly transmit the image data to the processing circuit 570, or the image sensor. 512 and 532 can also perform pre-processing on the image data to obtain characteristic data of the image (such as the area, aspect ratio, boundary, color, brightness and other parameters of the object image), and then transmit it to the processing circuit 570 to reduce the processing circuit. The load of 570, and the processing circuit 570 calculates the coordinates of the object 502 based on the characteristics of the image data or images. After the coordinates of the object 502 are obtained, the processing circuit 570 can output the coordinates to an electronic device (not shown) through the communication interface 560, for example, outputting to a notebook computer, so that the electronic device can be based on the coordinates. Carry out further operations. The method for obtaining the object coordinates will be further described below.

"Fig. 9" is an explanatory diagram of single-touch operation of the portable optical touch system shown in "Fig. 7". In the "figure 9", the symbols are the same as those in the "figure 7". Further, the point A is indicated as the set position of the image sensor 512, and the point B is indicated as the set position of the image sensor 532. As shown in FIG. 9, when the object 502 is located in the touch area 590, the image sensor 512 can sense the object 502 along the sensing route 902, and the image sensor 532. Object 502 can then be sensed along sense route 904. Therefore, as long as the processing circuit 570 can respectively obtain the linear equations of the sensing routes 902 and 904 according to the images sensed by the image sensors 512 and 532, the intersection of the two sensing routes can be further calculated, thereby obtaining the object. The coordinates of 502. The following will further explain how the processing circuit 570 obtains the linear equations of the two sensing routes based on the images sensed by the two image sensors.

FIG. 10 is a schematic diagram of the processing circuit 570 receiving the image data of the two image sensors 512 and 532 and subsequent processing. In FIG. 10, reference numeral 1010 denotes an image sensed by the image sensor 512, and reference numeral 1012 denotes that the object 502 reflects infrared light to form a bright zone with a high brightness on the image 1010, symbol 1014. The 1018 indicates the left edge and the right edge of the bright area 1012, respectively, and the symbol 1018 indicates the center, the gravity, or the mean or average of the bright area 1012 (ie, the object image). Symbols 1014, 1016, and 1018 are characteristic data about object 502 in image 1010.

Similarly, symbol 1020 represents the image sensed by image sensor 532, symbol 1022 indicates that object 502 reflects infrared light and bright area is formed on image 1020, and symbols 1024 and 1026 represent the left of bright area 1022, respectively. The edge and the right edge, and symbol 1028 is represented as the center, center of gravity, or average of the bright region 1022 (ie, the image of the object). Symbols 1024, 1026, and 1028 are characteristic data about object 502 in image 1020. In addition, other characteristics of the object 502, such as the area, aspect ratio, boundary, color, brightness, and the like of the object image, may also be processed by the processing circuit 570 or by the image sensors 512, 532. Set processing. In this embodiment, the processing data is obtained by the processing circuit 570.

FIG. 11 is an object position and a corresponding angle diagram in the image sensed by the image sensor 512. In the above, the processing circuit 570 can calculate the bright area after receiving the image 1010. The center, center of gravity, or average of 1012, that is, the position of object 502 in image 1010. Please refer to "Fig. 9", "Fig. 10" and "11th". In order to find the angle α1 between the dotted line 582 and the sensing line 902, the image 1010 can be equally divided into several equal parts, for example, ninety. Share. Each aliquot represents an angle of 1 degree, so the right edge of the image 1010 is the angle 0 degrees and the left border is the angle 90 degrees. When the center, center of gravity, or average of the object falls within the image 1010, the angle α 1 represented by the position is corresponding. For example, 1018A represents an angle α 1 of 45 degrees, 1018B represents an angle α 1 of 30 degrees, and 1018C represents an angle α 1 of 75 degrees. If there is no corresponding integer value of the integer, it can be calculated by interpolation. The same method can also find the angle β 1 .

Please refer to "Fig. 9". Using the known coordinate value of point A and angle α 1, the line equation of the sensing line 902 can be obtained by using the point-slope form. Similarly, B can also be utilized. The point coordinate value and the angle β 1 find the straight line equation of the sensing route 904. Therefore, the processing circuit 570 can calculate the intersection of the two sensing routes, and then determine the coordinates of the object 502. This method of calculating the coordinates of an object is the so-called two-line intersection method. In addition, the portable optical touch system 500 can also use other methods, such as a trigonometric function method, to calculate the coordinates of the object 502. Since this method has been widely used in conventional optical touch systems, it is no longer used here. Narration. In addition, with the above teachings, those skilled in the art will recognize that the portable optical touch system 500 can also be used in multi-touch. In addition, in addition to the object 502 to be tested in the field of view of the image sensors 512 and 532, other objects may exist in the far field of view, and these objects may also reflect infrared rays and interfere with the touch operation of the optical touch system 500. Therefore, the brightness of the light reflected by the object can be used for screening. For example, but not limited to, the processing circuit 570 can preset a brightness threshold or a brightness range, and each pixel in the image captured by the image sensors 512 and 532 (pixel) The brightness value is detected and screened. If the brightness value of a pixel exceeds a preset brightness threshold or Falling within the preset brightness range, the brightness value of this pixel conforms to the preset standard. In this way, the brightness values of each pixel in the image are sequentially filtered, and other objects than the object to be tested 502 can be filtered out.

It is worth mentioning that in the actual design, the aforementioned infrared light emitting devices 518 and 538 can be implemented by using at least one infrared light emitting diode (IR LED); and the aforementioned infrared light filtering devices 514 and 534 It can be realized by an IR-pass filter. The infrared light emitted by the infrared light emitting diode has a wavelength of about 800 nm to 960 nm, and is generally an infrared light emitting diode having a wavelength of 850 nm using infrared light. In addition, since the viewing angle of the general image sensor is 30 to 45 degrees, the number of optical lenses in the optical lens groups 516 and 536 is appropriate when the viewing angle of the visual image sensor and the viewing angle of each optical lens can be increased. the design of. In this example, the processing circuit 570 is disposed in the housing 5101 of the image sensing module 510, and the communication interface 560 is disposed on the housing 5101 of the image sensing module 510. For example, it is not intended to limit the configuration locations of the processing circuit 570 and the communication interface 560. In addition, the surface of the object 502 may additionally use a reflective material to enhance the reflective effect. In addition, the communication interface 560 can also be a wireless communication interface, such as a Bluetooth wireless transmission interface, a Wireless Universal Series Bus (Wireless USB) interface, or an Ultra Wide Band (UWB). ) Wireless interface, etc. Even the communication interface 560 can employ a variety of wired communication interfaces and a variety of wireless communication interfaces.

From the above description, it can be seen that the range of the touch area 590 can theoretically reach infinity. However, the size of the touch area 590 can still be limited by software. Referring again to FIG. 9, in the touch region 590, the length of the side formed by the broken line 582 is known, and the lengths of the two sides formed by the broken lines 584 and 586 are theoretically infinitely long. To make it by the dotted line The lengths of the two sides formed by 584 and 586 are a predetermined length, and the processing circuit 570 can define different touch ranges according to different applications. For example, when the optical touch system 500 is used as a virtual mouse, the size of the touch area 590 in front of the image sensing modules 510 and 530 can be operated according to the user's operating habit. By definition, for example, it is defined as a touch range of 15 cm × 15 cm (that is, the length of the dotted line 582 × the length of the broken line 584). Alternatively, the processing circuit 570 can define the predetermined length of the dotted lines 584 and 586 by the relationship between the size and the distance of the object image, and can also define the predetermined length by the brightness of the reflected light of the object image, or combine the two types. The way to define the predetermined length of dashed lines 584 and 586 in real time and to define the manner is built into the software or firmware employed by processing circuit 570. In this way, the touch area 590 can exhibit a quadrilateral touch range having a predetermined area size.

In the above, in the case that the touch area 590 has a predetermined area size, the processing circuit 570 may first calculate the coordinates of the object 502, and then determine whether the object 502 is located in the touch area 590. When the object 502 is located in the touch area 590, the processing circuit 570 outputs the coordinates of the object 502 through the communication interface 560. Of course, the processing circuit 570 may first calculate the coordinates of the object 502, and output the coordinates of the object 502 to the electronic device through the communication interface 560, so that the electronic device can determine whether the object 502 is located in the touch area 590. Then decide whether to use it.

Second Embodiment: This example mainly illustrates that the portable optical touch system 500 can be limited by hardware, so that the field of view of the image sensors 512 and 532 can be changed from infinity to a finite distance, as shown in FIG. Figure shows.

FIG. 12 illustrates another design of the internal components of the image sensing module 510. Set the way. In "Fig. 12", the same symbols as those in "Fig. 5" are denoted as the same members. As shown in FIG. 12, the image capturing surface 512A of the image sensor 512 and the bottom surface 5101A of the housing 5101 exhibit a predetermined angle θ 3 , and the predetermined angle θ 3 is less than 90 degrees. In addition, the infrared light filtering device 514, the optical lens group 516, the infrared light emitting device 518 (not shown) and the optical lens 520 (not shown) are also disposed along the predetermined angle θ 3 . The infrared light emitting device 518 and the optical lens 520 are disposed in such a manner that the traveling direction of the infrared light can be substantially parallel to the real work surface 802. Since the predetermined angle θ 3 is less than 90 degrees, the field of view of the image sensor 512 is a finite distance. That is to say, the depth of field of the image sensed by the image sensor 512 is a finite distance.

Similarly, the image sensor 532, the infrared light filtering device 534, the optical lens group 536, the infrared light emitting device 538, and the optical lens 540 in the image sensing module 530 are also disposed in the manner shown in FIG.

Referring to FIG. 9 again, since the fields of view of the image sensors 512 and 532 are changed from infinity to a finite distance, the lengths of the two sides formed by the broken lines 584 and 586 in the touch region 590 are known. It is defined in accordance with the farthest field of view that can be sensed by image sensors 512 and 532. The farthest field of view that the image sensor can sense can be calculated by referring to the method shown in Figure 13. In Fig. 13, D denotes the farthest field of view (i.e., the length of the dotted line 584 or 586) that the image sensor 512 can sense, H denotes the height of the image sensor 512, and θ 2 denotes the angle. . The relationship between D, H, and θ 2 is represented by the formula D = H / tan (θ 2) in the figure, and θ 3 (see "Fig. 12") plus θ 2 is an angle of 90 degrees. For example, if H is 5 mm and θ 2 is an angle of 1.91 degrees, then D is calculated by the formula to be H/tan (θ 2), which is about 150 mm.

Third embodiment: This example mainly illustrates that the field of view of the image sensors 512 and 532 of the portable optical touch system 500 can be changed from infinity to a finite distance in another hardware limited manner, as shown in FIG. .

The "figure 14" shows the modified portable optical touch system 500. In FIG. 14, the same symbols as those in FIG. 5 are denoted by the same members. In the optical touch system 500 shown in FIG. 14 , the volume of the housing 5101 of the image sensing module 510 is increased, and the housing 5101 has a first portion 51011 and a second portion 51012. The communication interface 560 is disposed in the first portion 51011, and the image sensor 512, the infrared light filtering device 514, the optical lens group 516, the infrared light emitting device 518, the optical lens 520, the processing circuit 570, and the light transmitting region 5102 are all disposed at Two parts 51012. The second portion 51012 is for connecting the length adjustable connection device 550, and the second portion 51012 is rotatable relative to the first portion 51011.

Since the length adjustable connecting device 550 is connected to the second portion 51012, the housing 5301 of the image sensing module 530 is connected to the length adjustable connecting device 550, so when the second portion 51012 is rotated relative to the first portion 51011, the length The adjustable connection device 550 and the image sensing module 530 also rotate at the same angle. In this way, when the portable optical touch system 500 is placed on or adjacent to a real working surface, the fields of view of the image sensors 512 and 532 can be changed from infinity to a finite distance along the rotation angle.

The fourth embodiment is described in the first embodiment. As long as the length of the adjustable optical connection system 550 of the portable optical touch system 500 is large enough, the image sensing module 510 can not use the housing 5101. The image sensor 512, the infrared light filtering device 514, the optical lens group 516, the infrared light emitting device 518, and the optical lens 520 may be disposed in one of the length adjustable connecting devices 550. end. Similarly, the image sensing module 530 does not need to adopt the housing 5301, but the image sensor 532, the infrared light filtering device 534, the optical lens group 536, the infrared light emitting device 538 and the optical lens 540 can be set in the length. The other end of the connecting device 550 can be adjusted. Of course, the sensing ranges of the image sensors 512 and 532 still need to partially overlap, so that the partially overlapped area can be used to define a touch area. The communication interface 560 and the processing circuit 570 can be arbitrarily set, and the processing circuit 570 can be electrically connected to the communication interface 560, the image sensor 512, and the image sensor 532.

It is worth mentioning that in this example, the visual fields of the image sensors 512 and 532 are theoretically infinite.

The fifth embodiment: the teachings of the fourth embodiment and the second embodiment, it can be seen that in the portable optical touch system 500 of the fourth embodiment, the image sensors 512 and 532 can be designed to be relatively The length of the length adjustable connecting device 550 is rotated by a predetermined angle, and the predetermined angle is less than 90 degrees. Of course, the infrared light filtering device 514, the optical lens group 516, the infrared light emitting device 518, and the optical lens 520 must also be appropriately adjusted according to the rotation angle of the image sensor 512; and the infrared light filtering device 534 The optical lens set 536, the infrared light emitting device 538 and the optical lens 540 must be appropriately adjusted corresponding to the rotation angle of the image sensor 532. In this way, when the portable optical touch system 500 is placed on a real working surface, the fields of view of the image sensors 512 and 532 can be changed from infinity to a finite distance along the direction of rotation.

Sixth Embodiment: This embodiment mainly describes that in a portable optical touch system using an infrared light emitting device, at least one optical lens in each optical lens group may be alternately coated with a plurality of layers of magnesium oxide (MgO). And a plurality of layers of titanium dioxide (TiO2) or cerium oxide (SiO2) to make at least one light The lens produces an effect similar to that of an infrared light filter. In this way, the original infrared light filtering device can be omitted. It is worth mentioning that the original infrared light filter is called Photo Resistor, which contains organic compounds, polymers and plastics.

Seventh embodiment: This embodiment mainly describes that in a portable optical touch system using an infrared light emitting device, each infrared light emitting device can be replaced by a laser light emitting device, and each infrared light filter Optical devices can be omitted. In addition, each optical lens in each optical lens set does not need to be coated with magnesium oxide (MgO), titanium dioxide (TiO2), and cerium oxide (SiO2). It must be noted that each optical lens disposed in front of the laser light emitting device must be capable of converting the point light source emitted by the corresponding laser light emitting device into a line light source so that the corresponding laser light emitted by the laser light emitting device Can cover at least the touch area. In this way, the laser light emitted by each of the laser light emitting devices can illuminate the objects located in the touch area, and each image sensor can also obtain an image of the object reflecting the laser light.

It is worth mentioning that each of the laser light emitting devices can be implemented by using at least one laser light emitting diode.

Eighth Embodiment: This embodiment mainly describes that in a portable optical touch system using a length adjustable connection device, each length adjustable connection device can be replaced by a non-retractable connection device.

Ninth Embodiment: This embodiment is mainly described in the portable optical touch system of the present invention. The circuit can be designed to further define a pattern in the touch area to use the pattern to virtualize a user input interface, and the user input interface can be a mouse, a keyboard, and a touch pad. Or a switch. Taking the portable optical touch system described in the second embodiment as an example, the processing circuit can be designed to further define a pattern of a mouse function in the touch area, which is illustrated in FIG.

Figure 15 shows the mouse function pattern defined by the above processing circuit in the touch area. In the "fifth diagram", the parallelogram area formed by the point A, the point B, the point E, and the point F sequentially connected is the touch area 590. Wherein, point A and point B are represented as setting positions of two image sensors in the portable optical touch system. In addition, the area L is virtualized as the left button function of the mouse, the area M is virtualized as the scroll function of the mouse, and the area R is virtualized as the right button function of the mouse. In this way, the user can operate using the virtual mouse function of the touch area 590.

The tenth embodiment is mainly for explaining that in the portable optical touch system of the ninth embodiment, a light emitting device can be further added to utilize the real light corresponding to the light emitting device in the touch area. A pattern defined by the processing circuit is projected on the work surface, such as a mouse function pattern, a keyboard function pattern, and the like. The light source of the light emitting device can be a visible laser source or a visible infrared source.

Eleventh Embodiment: The first embodiment indicates that the processing circuit can output the coordinates to an electronic device through the communication interface after acquiring the coordinates of the object. The embodiment of the present invention mainly describes that if the electronic device has a display screen, such as a notebook computer, the processing circuit in the portable optical touch system of the present invention can be designed to communicate with the electronic device through the communication interface. communication, In order to utilize the cursor position of the display screen of the electronic device to map the coordinates of the object.

Twelfth Embodiment: This embodiment mainly describes that a housing may be provided on the housing of the electronic device according to the eleventh embodiment, so that the portable optical touch system of the present invention can be disposed here. In the groove, as shown in Figure 16. FIG. 16 is a schematic view showing the portable optical touch system of the present invention disposed in a trench of an electronic device. The electronic device 1602 shown in this figure is an example of a notebook computer.

Thirteenth Embodiment: According to the teachings of the twelfth embodiment, it can be known that if the portable electronic device having the display screen itself has the portable optical touch system of the present invention, the electronic device can also be called It is a portable optical touch device. Of course, in the built-in portable optical touch system, it is not necessary to use a length adjustable connection device or a non-retractable connection device. In addition, the built-in portable optical touch system can use an infrared light emitting device or a laser light emitting device to illuminate an object located in the touch area.

Fourteenth Embodiment: With the teachings of the foregoing embodiments, it can be known that if the object to be tested can emit light, for example, infrared light or laser light can be emitted, the aforementioned portable optical touch systems do not need to be used. An infrared light emitting device or a laser light emitting device illuminates the object. Of course, optical lenses and other related components originally disposed in front of the infrared light emitting device or the laser light emitting device may also be omitted.

Combining the various embodiments of the portable optical touch system using the length adjustable connection device described above, a basic flow of a method for sensing the position of an object can be summarized, as described in Figure 17 shows. Fig. 17 is a basic flow of a method of sensing the position of an object in accordance with an embodiment of the present invention. The method is applicable to a portable optical touch system, and the portable optical touch system includes a first image sensing module, a second image sensing module, a length adjustable connecting device, a processing circuit, and a communication. interface. The sensing ranges of the two image sensing modules are partially overlapped, and the partially overlapping regions are used to define a touch region. The length adjustable connection device is connected to the first image sensing module and the second image sensing module for adjusting the distance between the first image sensing module and the second image sensing module. The method includes: capturing, by the two image sensing modules, an image of the object located in the touch area (as shown in step S1702); and acquiring, by the processing circuit, the two image sensing modules The image of the object is used to calculate the coordinates of the object (as shown in step S1704); and the coordinates of the object are output through the communication interface (as shown in step S1706). Wherein, the processing circuit can calculate the coordinates of the object by using a trigonometric function method or a two-line intersection method.

According to the description of the above embodiments, the portable optical touch system of the present invention can replace the user input interface of the current mouse, keyboard, touchpad, etc., and the portable optical touch system of the present invention. The utility model has the advantages of small volume, convenient carrying, disposable disposal and low cost. In addition, the portable optical touch system of the present invention is not limited by the fact that the current mouse is limited by the flatness of the working surface, and does not require the limitation of a physical touch area like a resistive or capacitive touch panel. According to the description of the foregoing embodiments, it is also known that the portable optical touch system of the present invention can be combined with or communicate with an electronic device having a display screen, and can control the motion of displaying the cursor in the screen, and can even realize the current All touchable functions on the market's touch screen, such as single touch, multi-touch, etc. It is worth mentioning that the technology of optically detecting an object may be referred to as an optical coupling technique, that is, an optical signal reflected by at least one image sensor is sensed, and then the optical signal is converted into an electronic signal. Signal, finally calculated by these image sensors The electronic signal is subjected to correlation processing to obtain characteristic information of the object.

Fifteenth Embodiment: FIG. 18 is a perspective view of an electronic device according to an embodiment of the present invention. FIG. 19 is another perspective view of an electronic device according to an embodiment of the present invention. The electronic device 1800 includes an electronic device 1830 and a portable optical touch system 500. The electronic device 1830 has an auxiliary device 1832 and a trench 1834. Moreover, the auxiliary device 1832 has a use state and a storage state, and the groove 1834 is used to receive the auxiliary device 1832. The portable optical touch system 500 is coupled to the auxiliary device 1832. In the present embodiment, the auxiliary device 1832 can move the portable optical touch system 500 between the use state and the storage state, for example, in a moving manner. Thus, the auxiliary device 1832 can be defined as a mobile device.

Specifically, in the use state, as shown in FIG. 18, the auxiliary device 1832 moves the portable optical touch system 500 to the outside of the trench 1834. That is, when the user wants to use the portable optical touch system 500, the portable optical touch system 500 is moved by the auxiliary device 1832 to expose the portable optical touch system 500 to the outside of the electronic device 1830. For image sensing operations. In the stored state, as shown in FIG. 19, the auxiliary device 1832 moves the portable optical touch system 500 to the inside of the groove 1834. In other words, when the user does not use the portable optical touch system 500, the portable optical touch system 500 can be moved by the auxiliary device 1832 to store the portable optical touch system 500 to the electronic device 1830. internal.

Further, the portable optical touch system 500 includes a first image sensing module 510, a second image sensing module 530, a length adjustable connection device 550, a communication interface 560, and a processing circuit 570, such as "7th. Figure shows. The sensing ranges of the image sensing modules 510 and 530 are partially overlapped, and the partially overlapping regions are used to define the touch regions 590. Length adjustable connecting device The 550 is connected to the first image sensing module 510 and the second image sensing module 530 for adjusting the distance between the first image sensing module 510 and the second image sensing module 530.

When an object 502 is located in the touch area, the processing circuit 570 calculates the coordinates of the object 502 according to the image of the object 502 sensed by the image sensing modules 510 and 530, and outputs the coordinates through the communication interface 560.

In an embodiment of FIG. 18, the electronic device 1830 further includes a slide rail 1836 and a snap element 1838. The slide rail 1836 is located in the groove 1834 for configuring the auxiliary device 1832 and the portable optical touch system 500, and the auxiliary device 1832 moves the portable optical touch system 500 out of the groove 1834 along the slide rail 1836 or Moved into the interior of the trench 1834. The snap element 1838 is used to buckle the auxiliary device 1832 when the auxiliary device 1832 moves the portable optical touch system 500 into the interior of the groove 1834. In addition, in an embodiment of FIG. 19, the electronic device 1830 further includes an elastic member 1840. The elastic member 1840 is disposed on the slide rail 1836 for driving the auxiliary device 1832 to remove the portable optical touch system 500 from the outside of the groove 1834.

In addition, in FIG. 18, the electronic device 1830 further includes a pushing member 1842. The pushing element 1842 is exposed outside of the electronic device 1830 and is coupled to the snap element 1838. When the pushing element 1842 pushes the snap element 1838, the snap element 1838 is separated from the auxiliary device 1832, causing the elastic element 1840 to drive the auxiliary device 1832 to move the portable optical touch system 500 out of the outside of the groove 1834.

In an embodiment of FIG. 18, the electronic device 1830 further includes a limiting component 1844. The limiting elements 1844 are disposed on opposite sides of the slide rail 1836 to define a moving position of the auxiliary device 1832. That is, when the auxiliary device 1832 moves the portable optical touch system 500 to the outside of the trench 1834, the auxiliary device 1832 can be limited to the trench 1834 by the limiting element 1844. The interior of the electronic device 1830 is exposed, and only the portable optical touch system 500 is exposed to the outside of the electronic device 1830.

In one embodiment, the portable optical touch system 500 is pivoted, for example, to the auxiliary device 1832, as shown in FIG. That is, when the portable optical touch system 500 moves to the outside of the trench 1834, the portable optical touch system 500 can pivot relative to the auxiliary device 1832 to change the position, angle, and area of the touch region 590. , thereby increasing the convenience of use.

In the present embodiment, the length adjustable connection device 550 can include a first positioning component 1862 and a second positioning component 1864, as shown in FIG. The first positioning element 1862 has a projection. The second positioning element 1864 has a plurality of grooves, and the grooves are arranged in sequence, and the grooves respectively correspond to the protrusions. That is, when the length adjustable connecting device 550 moves, the protruding portion is engaged with one of the grooves to adjust the distance between the first image sensing module 510 and the second image sensing module 530.

Moreover, the aforementioned first positioning element 1862 is, for example, an elastic structure. Thereby, when the length adjustable connecting device 550 moves, the protruding portion of the first positioning member 1862 can be disengaged from the groove of the corresponding second positioning member 1864 by the elastic property of the first positioning member 1862, and The groove of the other corresponding second positioning element 1864 is engaged.

Sixteenth Embodiment: FIG. 22 is a perspective view of an electronic device according to an embodiment of the present invention. FIG. 23 is another perspective view of the electronic device disclosed in the embodiment of the present invention. The electronic device 2200 includes an electronic device 2230 and a portable optical touch system 500 (as shown in FIG. 5). The electronic device 2230 has an auxiliary device 2232 and a groove 2234. The auxiliary device 2232 has a use state and a storage state, and the groove 2234 is used to receive the auxiliary device 2232. Portable optical touch system 500 The auxiliary device 2232 is connected. In the present embodiment, the auxiliary device 2232 rotates, for example, such that the portable optical touch system 500 can switch between the use state and the storage state. Thus, the auxiliary device 2232 can be defined as a rotating device.

Specifically, in the use state, as shown in FIG. 22, the auxiliary device 2232 rotates the portable optical touch system 500 to the outside of the groove 2234. That is, when the user wants to use the portable optical touch system 500, the portable optical touch system 500 is rotated by the auxiliary device 2232 to expose the portable optical touch system 500 to the outside of the electronic device 2230. For image sensing operations. In the stowed state, as shown in FIG. 23, the auxiliary device 2232 rotates the portable optical touch system 500 to the inside of the groove 2234. In other words, when the user does not use the portable optical touch system 500, the portable optical touch system 500 can be rotated by the auxiliary device 2232 to store the portable optical touch system 500 to the electronic device 2230. internal.

In this embodiment, the internal components of the portable optical touch system 500 and related operations can be referred to the descriptions of the embodiments shown in FIG. 5 and FIG. 7 , and thus are not described herein again. In addition, the length adjustable connecting device 550 also includes a first positioning component 1862 and a second positioning component 1864, and the first positioning component 1862 and the second positioning component 1864 can be referred to the embodiment shown in FIG. 21 The description is therefore not repeated here.

In the present embodiment, the auxiliary device 2232 further includes a locking member 2236 and a rotating member 2238, as shown in FIG. The locking component 2236 is used to lock the auxiliary device 2232 to the electronic device 2230. The rotating element 2238 connects the locking element 2236 with the portable optical touch system 500. Further, the rotating element 2238 further includes a third positioning element 2240 and a fourth positioning element 2242.

Wherein, the third positioning component 2240 is disposed on the locking component 2236, and the third setting The bit element 2240 has a projection. The fourth positioning component 2242 is disposed on the locking component 2236. The fourth positioning component 2242 has a plurality of grooves, and the grooves of the fourth positioning component 2242 are sequentially arranged, and the grooves of the fourth positioning component 2242 correspond to the first The projection of the three positioning elements 2240.

That is, when the rotating component 2238 drives the portable optical touch system 500 to rotate, the protruding portion of the third positioning component 2240 is engaged with one of the grooves of the fourth positioning component 2242 to adjust the portable optical. The angle of movement of the touch system 500. Moreover, the third positioning element 2240 is an elastic structure. Therefore, when the rotating component 2238 drives the portable optical touch system 500 to rotate, the protruding portion of the third positioning component 2240 can be associated with the corresponding fourth positioning component 2242 by the elastic property of the third positioning component 2240. The recess is disengaged and engages with the groove of another corresponding fourth positioning element 2242.

In addition, in the embodiment of FIG. 23, the electronic device 2230 further includes a pushing component 2244 that is exposed outside the electronic device 2230 and adjacent to the portable optical touch system 500 for driving the portable optical touch. System 500 is partially removed from the exterior of trench 2234. Then, the portable optical touch system 500 is rotated to the outside of the trench 2234 by the rotating component 2238.

Seventeenth Embodiment: FIG. 25 is a perspective view of an electronic device according to an embodiment of the present invention. FIG. 26 is another perspective view of the electronic device disclosed in the embodiment of the present invention. In the storage state, the portable optical touch system 500 can be placed in the groove of the electronic device 1602, as shown in FIG.

Moreover, in the state of use, the portable optical touch system 500 can be removed from the trench of the electronic device 1602, and the portable optical touch system 500 can be separated from the electronic device 1602, such as FIG. Next, the communication interface 560 of the portable electronic device 500 and the electronic device 1602 The communication interface 1604, such as "Fig. 26", for signal transmission and subsequent operations.

Eighteenth Embodiment: FIG. 27 is a perspective view of an electronic device according to an embodiment of the present invention. FIG. 28 is another perspective view of the electronic device disclosed in the embodiment of the present invention. The electronic device 1602 still has a groove, and in the storage state, the portable optical touch system 500 can be placed in the groove of the electronic device 1602, as shown in FIG.

In an embodiment, the portable optical touch system 500 can still be located in the trench of the electronic device 1602, as shown in FIG. 27, and the communication of the portable optical touch system 500 is performed. The interface 560 can be connected to the communication interface of the electronic device 1602 in a wireless manner (for example, Bluetooth or the like) for signal transmission and subsequent operations.

In another embodiment, in the state of use, the portable optical touch system 500 can be removed from the slot of the electronic device 1602, that is, the portable optical touch system 500 is separated from the electronic device 1602, such as "28th" As shown in the figure, the communication interface 560 of the portable optical touch system 500 can be connected to the communication interface of the electronic device 1602 in a wireless manner (for example, Bluetooth, etc.) for signal transmission and subsequent operations. In addition, when the portable optical touch system 500 is placed back into the groove of the electronic device 1602, the communication interface 560 of the portable optical touch system 500 can be connected to the communication interface in the trench of the electronic device 1602, for example. For signal transmission and subsequent operations, at the same time, the portable optical touch system 500 can turn off the wireless function (such as Bluetooth, etc.) in the communication interface 560. That is, in the "28th", when the portable optical touch system 500 is taken out from the groove of the electronic device 1602, the portable optical touch system 500 performs a signal with the electronic device 1602 in a wireless manner. When the portable optical touch system 500 is placed back into the groove of the electronic device 1602, the portable optical touch system 500 is switched from wireless to wired and the electronic device 1602 Transmission of line signals.

In the electronic device provided by the embodiment, the portable optical touch system is removed from the outside of the trench (ie, the outside of the electronic device) in the use state, and the portable device is in the storage state. The optical touch system moves into the interior of the trench (ie, the interior of the electronic device). In this way, the convenience of using and accommodating the portable optical touch system can be effectively increased.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention. It is within the scope of the invention to be modified and modified without departing from the spirit and scope of the invention. Please refer to the attached patent application for the scope of protection defined by the present invention.

500‧‧‧Portable Optical Touch System

510‧‧‧First Image Sensing Module

530‧‧‧Second image sensing module

550‧‧‧ Length adjustable connection device

1800‧‧‧Electronic equipment

1830‧‧‧Electronic devices

1832‧‧‧Auxiliary device

1834‧‧‧ trench

1836‧‧‧Slide rails

1838‧‧‧Snap components

1842‧‧‧Promoting components

1844‧‧‧Limiting components

Claims (11)

An electronic device includes: an electronic device having an auxiliary device and a groove, the auxiliary device having a use state and a storage state, wherein the groove is for receiving the auxiliary device; and a portable optical touch System, connecting the auxiliary device, wherein in the use state, the auxiliary device moves the portable optical touch system to the outside of the groove, and in the storage state, the auxiliary device uses the portable optical The touch system is moved into the interior of the trench, wherein the portable optical touch system includes: a first image sensing module; a second image sensing module, wherein the image sensing modules sense The measurement range is partially overlapped, and the partially overlapped area is used to define a touch area; a length adjustable connection device is connected to the first image sensing module and the second image sensing module for adjusting a distance between the first image sensing module and the second image sensing module; a communication interface; and a processing circuit, when an object is located in the touch area, the processing circuit is based on the image sense Measurement The image of the object is sensed by the group to calculate the coordinates of the object, and the coordinate is output through the communication interface; wherein the length adjustable connection device comprises: a first positioning component having a protrusion; and a a second positioning element having a plurality of grooves, and the grooves are arranged in sequence, and the grooves respectively correspond to the protrusions; wherein, when the length adjustable connection device moves, the protrusions are One of the grooves is engaged to adjust the first image sensing module and the second image sensing module The distance between. The electronic device of claim 1, wherein the auxiliary device further comprises: a slide rail disposed in the groove for configuring the auxiliary device and the portable optical touch system, and the auxiliary device Moving the portable optical touch system out of the trench or into the interior of the trench along the slide rail; and a snap component for moving the portable optical touch system into the auxiliary device When the inside of the groove is closed, the auxiliary device is caught. The electronic device of claim 2, wherein the auxiliary device further comprises: an elastic component disposed on the slide rail for driving the auxiliary device to move the portable optical touch system out of the trench The outside. The electronic device of claim 2, wherein the auxiliary device further comprises: a pushing component exposed outside the electronic device and connected to the buckle component for pushing the snap component to separate the card Buckle element and the auxiliary device. The electronic device of claim 2, wherein the auxiliary device further comprises: a limiting component disposed on opposite sides of the sliding rail for defining a moving position of the auxiliary device. The electronic device of claim 1, wherein the portable optical touch system is pivoted to the auxiliary device. The electronic device of claim 1, wherein the first positioning component is an elastic structure. The electronic device of claim 1, wherein the auxiliary device comprises: a locking component for locking the auxiliary device to the electronic device; and a rotating component connecting the locking component and the Portable optical touch system. The electronic device of claim 8, wherein the rotating component comprises: a third positioning component disposed on the locking component, the third positioning component having a protrusion; and a fourth positioning component disposed on the locking component, the fourth positioning component having a plurality of grooves And the grooves of the fourth positioning component are arranged in sequence, and the grooves of the fourth positioning component respectively correspond to the protrusion of the third positioning component; wherein, when the rotating component drives the When the portable optical touch system rotates, the protruding portion of the third positioning component is engaged with one of the recesses of the fourth positioning component to adjust a moving angle of the portable optical touch system. . The electronic device of claim 9, wherein the third positioning element is an elastic structure. The electronic device of claim 1, wherein the electronic device comprises: a pushing component exposed outside the electronic device and adjacent to the portable optical touch system for driving the portable optical touch The control system is partially removed from the outside of the trench.