TW201530350A - Electronic apparatus and method for virtual input device - Google Patents

Abstract

An electronic apparatus and a method for a virtual input device are provided. The electronic apparatus includes a first light source which includes a plurality of point light sources. The method includes the following steps. A first light beam is provided from one of the point light sources, and one of a plurality of input device images is projected, wherein each point light source corresponds to each input device image respectively. A second light beam is provided, and when an object approaches to the input device image, a reflective beam is reflected by the object. The reflective beam is detected, and an input signal is obtained. When the input signal corresponds to a switching signal for switching the input device image, the point light source is switched to the other one of the point light sources so as to project the other one of the input device image.

Description

Electronic device and method of generating virtual input device

The present invention relates to a virtual input technique, and more particularly to an electronic device and a method of generating a virtual input device.

As technology continues to advance, more sophisticated and more humane electronic products have been introduced. For example, a notebook computer, a tablet PC, and an all-in-one PC (AIO PC) have the same functions as a typical desktop computer, plus a small size. The light weight feature makes the user very convenient to carry around, and has become an indispensable tool for ordinary people's life and work.

Take the one-piece computer as an example. One of the original design goals was to discard the position of an extra host, so the motherboard was placed behind the screen. With the advent of touch screens, users can also discard the mouse to operate through the touch screen. However, for the convenience of typing, the keyboard is still a peripheral device that cannot be discarded.

The prior art provides a device for projecting a virtual keyboard, wherein the top segment is constructed The piece is used to project a virtual keyboard, the bottom member is used to emit an infrared beam, and the middle member is used to detect a reflected beam caused by the infrared beam being blocked. However, when the user wants to use the virtual keyboard, the above device needs to be carried in addition to the host, and the host computer also needs to provide another connection port to connect the device. Therefore, it is still quite inconvenient for the user to use.

The invention provides an electronic device and a method for generating a virtual input device, which can facilitate a user to issue an instruction in a virtual input device to switch to a different input mode to manipulate the electronic device.

The present invention provides an electronic device and a method of generating a virtual input device that can adjust the position of the virtual input device to meet different needs of the user during manipulation.

The invention provides an electronic device comprising a first light source, a second light source, a sensing module and a processing unit. The first light source includes a plurality of point light sources respectively adapted to provide a first light beam to project one of the plurality of input device images, wherein the respective point light sources respectively correspond to the respective input device images. The second light source is adapted to provide a second light beam, wherein the object reflects the second light beam into a reflected light beam when the object contacts the input image. The sensing module includes a first sensing element and a second sensing element opposite to the first sensing unit, and the first sensing unit and the second sensing unit are configured to detect the reflected light beam. The processing unit is coupled to the first light source, the second light source, and the sensing module, and obtains an input signal according to the reflected light beam. Wherein, when the input signal corresponds to a switching instruction for switching the image of the input device, the processing unit switches one of the point light sources to The other of the point sources projects another image of the input.

The invention further provides a method of generating a virtual input device for use with an electronic device having a first light source, wherein the first light source comprises a plurality of point sources. This method includes the following steps. Providing a first light beam through one of the point light sources to project one of a plurality of input device images, wherein each point light source corresponds to each of the input device images. A second beam is provided, and when the object contacts the image of the input, the object reflects the second beam into a reflected beam. The reflected beam is detected to obtain an input signal. When the input signal corresponds to a switching instruction for switching the image of the input device, one of the point light sources is switched to project another input device image through the other of the point light sources.

The present invention further provides an electronic device including a first driving device, a second driving device, a third driving device, and a controller. The first driving device is coupled to the first light source. The first source includes a plurality of point sources each adapted to provide a first beam. The first driving device is adapted to adjust a first direction in which the respective point sources provide the first beam. The second driving device is coupled to the second light source. The second light source is adapted to provide a second light beam. The second drive is adapted to adjust the second direction in which the second light source provides the second light beam. The third driving device is coupled to the sensing module. The sensing module includes a first sensing element and a second sensing element. The third driving device is adapted to adjust the sensing module to detect the plurality of third directions of the reflected light beam, and the third direction corresponds to the first sensing element and the second sensing element respectively. The controller is coupled to the first driving device, the second driving unit, and the third driving unit, and is adapted to detect a first change amount when the first driving device adjusts each point light source, and synchronously adjust the second according to the first change amount a second amount of change when the driving device adjusts the second light source, and The third driving device adjusts the plurality of third variation amounts when the sensing module is adjusted, wherein the first variation amount corresponds to the second variation amount and the third variation amount.

The invention further provides a method for generating a virtual input device, which is adapted to adjust a first direction of the first light beam by the plurality of point light sources by the first driving device, and adjust the second light source to provide the second light beam by the second driving device. a second direction, and adjusting a plurality of third directions of the reflected beam by the sensing module by the third driving device. This method includes the following steps. A first change amount when the first driving device adjusts each point light source is detected. Adjusting, according to the first change amount, a second change amount when the second driving device adjusts the second light source, and a plurality of third change amounts when the third driving device adjusts the sensing module, wherein the first change amount corresponds to the first change amount Two variations and the third variation.

Based on the above, the electronic device can switch the projected image of the input device according to the switching instruction on the image of the input device to provide the user to perform manipulation according to different virtual input devices. In addition, the electronic device can also synchronously adjust the first light source, the second light source, and the sensing module to adjust the position of the input image to meet different needs of the user. Accordingly, the user can more conveniently utilize the virtual input device generated by the electronic device to manipulate the electronic device.

The above described features and advantages of the invention will be apparent from the following description.

100, 400‧‧‧ electronic devices

101, 401‧‧‧ body

102, 402‧‧‧ touch screen

104, 404‧‧‧ support frame

110, 410‧‧‧ first light source

112, 114, 116, 412, 414, 416 ‧ ‧ point light source

112c, 114c, 116c‧‧‧ first beam

12, 14, 16, 42, 42'‧‧‧ Input Image

120, 420‧‧‧ second light source

120c‧‧‧second beam

130, 430‧‧‧ Sensing Module

132, 432‧‧‧ first sensing element

134, 434‧‧‧ second sensing element

140, 440‧‧ ‧ processing unit

450‧‧‧First drive

460‧‧‧Second drive

470‧‧‧third drive

480‧‧‧ Controller

Directions C1, C1', C2, C2', C3, C3', D, R‧‧

S202~S208, S502~S504‧‧‧ method of generating virtual input device

FIG. 1A is a block diagram of an electronic device according to an embodiment of the invention.

FIG. 1B is a front elevational view of an electronic device according to an embodiment of the invention.

FIG. 1C is a side view of an electronic device according to an embodiment of the invention.

2 is a flow chart of a method for generating a virtual input device according to an embodiment of the invention.

3A to 3C are plan views of an electronic device according to an embodiment of the invention.

FIG. 4 is a block diagram of an electronic device according to an embodiment of the invention.

FIG. 5 is a flow chart of a method for generating a virtual input device according to an embodiment of the invention.

6A-6B are side views of an electronic device according to an embodiment of the invention.

In the application of a one-piece computer, if you can completely discard the surrounding input devices, such as keyboards, mice, etc., it is bound to increase the convenience of the user to control the computer. In addition, the way to switch the input mode in the general keyboard is through the "Crtl+Shift" key combination on the keyboard, so that if the peripheral input device is completely discarded, the user can select various input modes and The operational requirements make it easier for the user to control the computer. The present invention is an electronic device and a method of generating a virtual input device based on the above points. In order to make the content of the present invention clearer, the following specific embodiments are examples of the invention that can be implemented.

FIG. 1A is a block diagram of an electronic device according to an embodiment of the invention. FIG. 1B is a front elevational view of an electronic device according to an embodiment of the invention. FIG. 1C is a side view of an electronic device according to an embodiment of the invention. Referring to FIG. 1A to FIG. 1C , the electronic device 100 is, for example, an all-in-one PC (AIO PC), but the embodiment is not limited thereto. In other embodiments, the electronic device 100 can also be an electronic device with computing power such as a tablet PC or a mobile phone. The electronic device 100 includes a first light source 110, a second light source 120, a sensing module 130, and a processing unit 140. The first light source 110, the second light source 120, and the sensing module 130 are, for example, touches disposed on the electronic device 100. The edge of the screen 102, and the processing unit 140 is disposed, for example, in the body 101 of the electronic device 100. In addition, the electronic device 100 may further include a support frame 104 to support the body 101 of the electronic device 100.

The first light source 110 includes a plurality of point light sources. Hereinafter, the point light sources 112, 114, and 116 are exemplified, but the embodiment does not limit the number of point light sources. The point sources 112, 114 and 116 are, for example, light-emitting diode (LED) components, LED packages or other suitable point sources. In detail, the point sources 112, 114, and 116 are respectively adapted to provide a first beam to project one of a plurality of input image images, wherein the point sources 112, 114, and 116 respectively correspond to the respective input images.

In this embodiment, the input device image may correspond to a virtual input device of various input modes. For example, the input device image may be a virtual keyboard or a virtual touch pad. More specifically, the input image can be a virtual keyboard corresponding to different input methods. For example, a virtual keyboard with an English input method, a virtual keyboard with a phonetic input method, or a virtual keyboard with a shrimp input method. In addition, the input image can also be a virtual touchpad for receiving virtual touch input such as handwriting input. The above description is illustrative. The present invention does not limit the form of the image of the input device. In other embodiments, the image of the input device may also correspond to a keyboard of other functional forms, such as a character keyboard or a piano keyboard.

Alternatively, point sources 112, 114, and 116 can be light sources of different colors to provide first beams of different colors, and the first beams of different colors can correspond to different input image images, respectively. That is, the first beam of each color may correspond to an input image. For example, a red point source can project a virtual keyboard with an English input method, a blue point source can project the virtual keyboard with a phonetic input method, and a green point source can project a virtual trackpad. As described above, the present invention does not limit the form of the image of the input device projected by the point source of each color.

In this embodiment, the user can turn on a point source in the first light source 110 through a physical button or a soft button to generate an input image. For example, after the first light source 110 receives the user's turn-on signal, one of the point light sources 112, 114, and 116 provides a first light beam (eg, the point light source 112 of FIG. 1C provides the first light beam 112c) to project An input image corresponding to the point source (eg, corresponding to the input image 12 of the point source 112). Thereby, the user can operate on the input image according to the virtual keyboard or the virtual touchpad corresponding to the image of the input device to control the electronic device 100.

The second light source 120 is adapted to provide a second light beam 120c. In this embodiment, the second light source 120 is, for example, an infrared light emitting diode (LED). Components to provide an infrared beam. In another embodiment, the second source 120 can also be other sources of invisible light to provide other invisible beams.

The sensing module 130 has a first sensing unit 132 and a second sensing unit 134, wherein the first sensing unit 132 and the second sensing unit 134 may include a charge coupled device (CCD) or a complementary gold. A complementary metal oxide semiconductor sensor (CMOS sensor). In this embodiment, the first sensing unit 132 and the second sensing unit 134 are, for example, infrared light detectors for detecting a reflected light beam generated by the second light beam 120c after being reflected by an object, wherein the object For example, the user's hand or stylus. For example, as shown in FIG. 1C, the first sensing unit 132 and the second sensing unit 134 respectively have a detection range 13 for detecting the reflected beam in the detection range 13, and when the object is reflected, When the generated reflected beam falls within the detection range 13, the first sensing unit 132 and the second sensing unit 134 can detect the position corresponding to the object. Thereby, in the mutual cooperation of the first sensing unit 132 and the second sensing unit 134, the embodiment can detect the reflected light beam more accurately. It should be noted that the present embodiment is described by taking the two first sensing units 132 and the second sensing unit 134 as an example, but the embodiment does not limit the number of sensing units. In other embodiments, other sensing units may be disposed around the touch screen 402.

The processing unit 140 is coupled to the first light source 110 , the second light source 120 , and the sensing module 130 . Processing unit 140 obtains an input signal based on the reflected beam. Here, the input signal is, for example, an operation corresponding to the object being performed on the image of the input device. Specifically, when the user's hand presses or slides at a position on the image of the input device The moving path of the second light beam 120c provided by the second light source 120 is blocked to generate a reflected light beam, and the processing unit 140 can be based on the results detected by the first sensing unit 132 and the second sensing unit 134. The coordinate position of the user's hand in the image of the input device is calculated, and the control command corresponding to the coordinate position in the electronic device 100 is obtained, so that the processing unit 140 can recognize the operation performed by the user. In this embodiment, when the input signal obtained by the processing unit 140 is a switching instruction for switching the input image of the input device (for example, an instruction for switching an input method in an OS system, for example, a “Crtl+Shift” key combination), the processing unit The 140 will switch the point source currently used to project the image of the input device to project a virtual input device corresponding to the image of the other input device through another point source.

The steps of the method for generating a virtual input device of the present embodiment are described below with the electronic device 100 described above. 2 is a flow chart of a method for generating a virtual input device according to an embodiment of the invention. Referring to FIGS. 1 and 2, in step S202, a first light beam is provided through one of the point light sources 112, 114, and 116 to project one of a plurality of input image images, wherein the point light sources 112, 114, and 116 Corresponding to the image with each input device. In step S204, the second light source 120 provides the second light beam 120c, and when an object contacts the input image, the object reflects the second light beam 120c into a reflected light beam. In step S206, the processing unit 140 obtains an input signal according to the reflected light beam detected by the first sensing unit 132 and the second sensing unit 134 in the sensing module 130. In step S208, when the input signal corresponds to a switching instruction for switching the image of the input device, the processing unit 140 switches one of the point light sources 112, 114, and 116 to be projected through the other of the point light sources 112, 114, and 116. Another input image.

In order to explain in detail the above method of generating a virtual input device, an embodiment is exemplified below. 3A to 3C are diagrams of the electronic device 100 according to an embodiment of the invention. As shown in FIG. 3A, it is assumed that when the first light source 110 is turned on, the first light beam 112c is supplied through the point source 112 to project the input image 12, wherein the input image 12 is a virtual keyboard having an English input method. That is, the user can perform an English typing input through the input device image 12 to control the electronic device 100.

When the user presses the key combination of "Crtl+Shift" on the input image 12, as shown in FIG. 3B, the processing unit 140 switches the point source 112 to another point source, such as the point source 114. Here, the point source 114 provides a first beam 114c for projecting the input image 14, wherein the input image 14 is, for example, a virtual keyboard having a phonetic input method. In other words, the user can change the English typing input to the phonetic typing input to manipulate the electronic device 100.

When the user presses the key combination of "Crtl+Shift" on the input image 14, as shown in FIG. 3C, the processing unit 140 switches the point source 114 to another point source, such as the point source 116. Here, the point source 116 provides a first beam 116c for projecting the input image 16, wherein the input image 16 is, for example, a virtual trackpad. That is to say, the user can change the phonetic typing input into the virtual touch input mode, and operate on the virtual touch panel to control the electronic device 100, wherein the user can also match the stylus on the virtual touchpad. Perform drawing or handwriting operations. In this way, when the user does not want to use the virtual keyboard and wants to perform drawing, handwriting operations (such as signatures), or through the electronic device 100 for the briefing, the user can The electronic device 100 is controlled according to the virtual touch panel corresponding to the input image 16 . Of course, if the user wants to use the virtual keyboard again, a specific operation (ie, an operation corresponding to the switching instruction) may be input on the input image 16 so that the processing unit 140 switches the point source 116 to another point source. To project other input image images corresponding to the virtual keyboard.

It should be noted that the first light source 110 in the electronic device 100 may also add other point light sources. Therefore, when the user presses a key combination of "Crtl+Shift" or other operation corresponding to the switching instruction on the image of the input device, the processing unit 140 can switch from the current point source to the new point source. And another new point source is used to provide another first beam to project another input image. For example, a point source for projecting a virtual keyboard having no shrimp input method may be added to the first light source 110. Thereby, when the processing unit 140 switches to project the image of the input device through the point light source, the input device image is a virtual keyboard having a shrimp input method, and the user can perform the typing input without the shrimp to manipulate the electronic device 100.

It should be noted that, in this embodiment, the user does not restrict the user through the "Crtl+Shift" key combination, so that the processing unit 140 switches different point light sources to project different input device images. In other embodiments, the user can also cause the processing unit 140 to switch different point light sources to project different input device images according to the set or preset keys or a combination thereof.

It should be noted that the first light source 110, the second light source 120, and the sensing module 130 may be a linkage device, wherein when the user adjusts the first light source 110 When the point light sources 112, 114, and 116 in the position of the input image are projected, the direction in which the second light source 120 projects the second light beam 120c and the direction in which the sensing module 130 detects the reflected light beam are also adjusted in synchronization to detect The user's actions on the input image. Thereby, the user can adjust the position of the input device image according to different needs of the use, so as to more conveniently manipulate the electronic device 100 through the input device image. A further embodiment will be described in detail below.

FIG. 4 is a block diagram of an electronic device according to an embodiment of the invention. Referring to FIG. 4 , the electronic device 400 includes a first light source 410 , a second light source 420 , a sensing module 430 , and a processing unit 440 . In addition, the electronic device 400 further includes a first driving device 450, a second driving device 460, a third driving device 470, and a controller 480. The functions of the first light source 410, the second light source 420, the sensing module 430, and the processing unit 440 are the same as the first light source 110, the second light source 120, the sensing module 130, and the processing unit 140 in the foregoing embodiment. Similar, so I won't go into details here.

Different from the foregoing embodiment, the electronic device 400 is further configured with a first driving device 450, a second driving device 460, a third driving device 470, and a controller 480. The first driving device 450 is coupled to the first light source 410 and is adapted to adjust the first directions of the first light beams by the respective point light sources 412, 414 and 416. The second driving device 460 is coupled to the second light source 420 and is adapted to adjust the second direction in which the second light source 420 provides the second light beam. The third driving device 470 is coupled to the sensing module 430, and is adapted to adjust the sensing module 430 to detect a plurality of third directions of the reflected light beam, wherein the third direction respectively adjusts the first feeling of the third driving device 470 The measuring element 432 and the second sensing element 434 detect the direction of the reflected beam. In addition, the first driving device 450, the second driving device 460, the first The three driving device 470 is, for example, a stepping motor.

The controller 480 is coupled to the first driving device 450, the second driving device 460, and the third driving device 470, wherein the controller 480 can operate the second driving device 460 and the third driving device according to the actuation of the first driving device 450. 470 controls. For example, when the first driving device 450, the second driving device 460, and the third driving device 470 are stepping motors, the controller 480 can adjust the rotation of the second driving device 460 according to the rotation angle of the first driving device 450. The angle and the angle of rotation of the third driving device 470 are such that the second light source 420 changes the second direction in which the second light beam is provided, and the first sensing element 432 and the second sensing element 434 of the sensing module 430 are respectively changed. The third direction of the reflected beam is detected. Accordingly, when the position of the input image projected by each of the point light sources 412, 414, and 416 is changed, the second light source 420 provides the second direction of the second light beam and the sensing module 430 detects the reflected light beam. The three directions can be adjusted accordingly.

The steps of the method for generating a virtual input device of the present embodiment are described below with the electronic device 400 described above. FIG. 5 is a flow chart of a method for generating a virtual input device according to an embodiment of the invention. Referring to FIG. 4 and FIG. 5, in step S502, the controller 480 detects a first change amount when the first driving device 450 adjusts each point light source, wherein the first change amount is, for example, a change angle of the rotation angle of the stepping motor. . In step S504, the controller 480 synchronously adjusts the second change amount when the second driving device 460 adjusts the second light source 420 according to the first change amount, and the plurality of the third driving device 470 adjusts the sensing module 480. a third variation, wherein the first variation corresponds to the second variation and the third variation, and the second variation and the third variation The amount is, for example, the amount of change in the angle of rotation of the stepping motor. In this way, when the first direction of the first light beam provided by each point light source changes, the position of the input image can be correspondingly changed, and the second light source 420 provides the second direction of the second light beam and the sensing module 430. The third direction of the reflected beam can also be adjusted accordingly to accurately detect the user's operation on the image of the input device.

In order to describe in detail the method of generating a virtual input device of the present embodiment, an embodiment will be described below, which is still described in conjunction with the electronic device 400 of FIG.

6A-6B are side views of an electronic device according to an embodiment of the invention. Referring to FIG. 4, FIG. 6A and FIG. 6B, the electronic device 400 of the present embodiment may further include a support frame 404 pivotally connected to the body 401 of the electronic device 400 by a rotating shaft structure (not shown), and the body 401 has a body 401. Touch screen 402. In this embodiment, the user can drive the body 401 of the electronic device 400 to rotate the body 401 of the electronic device 400 relative to the support frame 404 by rotating the rotating shaft structure, thereby changing the touch screen 402 of the electronic device 400. The elevation angle. The rotation of the rotating shaft structure has a three-stage adjustment function, that is, the angle at which the body 401 of the electronic device 400 rotates relative to the support frame 404 can be preset to three different angles, but the embodiment is not limited thereto.

When the user pushes the body 401 of the electronic device 400 to rotate relative to the support frame 404 (for example, rotating the body along the direction R), the rotating shaft structure can trigger the actuation of the first driving device 450, so that the first driving device 450 adjusts each Providing a first direction of the first light beam when the light source is used (for example, the first light beam provided by the point light source 412 is changed from the first direction C1 to the first direction C1'), thereby changing the projection of each point light source The position of the output image of the output (e.g., the position of the input image 42 is biased toward the direction of the input image 42'). Moreover, the controller 480 also synchronously adjusts the second driving device 460 and the third driving device 470 to change the second direction in which the second light source 420 provides the second light beam (eg, the second direction C2 is changed to the second direction C2'), And the first sensing element 432 and the second sensing element 434 detect a third direction of the reflected beam (eg, the third direction C3 is changed to the third direction C3'). Thereby, the user can change the position where the image of the input device is projected by adjusting the elevation angle of the touch screen 402 of the electronic device 400, and meet the demand for use.

In summary, in the electronic device of the present invention and the method for generating a virtual input device, one point light source in the first light source projects an input image, and when an object (such as a user's hand) is second When the second light beam provided by the light source is reflected, the electronic device can pass through the sensing module to recognize the input signal corresponding to the reflected light beam. When the input signal corresponds to a switching instruction for switching the input image, the electronic device switches the current point source to project another input image through another point source. Thereby, the user can completely discard the input device around the electronic device for manipulation, and the user can input a switching command on the input device image, so that the electronic device provides different input device images to pass through different virtual input devices. Manipulating the electronic device. Moreover, through the reflected beam detected by the two sensing units of the sensing module, the electronic device can more accurately interpret the operation performed by the user on the image of the input device, such as the displacement of the up and down movement and the amount of movement, so For other electronic devices configured with only one sensing unit, the electronic device of the present invention can increase the accuracy and accuracy of recognition. On the other hand, in the present invention, the point source in the first light source projects the input When the direction of the image changes, the direction in which the second light source provides the second light beam and the direction in which the sensing module detects the reflected light beam are also adjusted synchronously to accurately detect the input signal corresponding to the image of the input device. Thereby, the user can adjust the position of the input image according to the different needs of the use, so as to facilitate the manipulation of the electronic device through the virtual input device. In this way, the present invention can improve the convenience of the user using the virtual input device.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

S202~S208‧‧‧Methods for generating virtual input device

Claims (16)

An electronic device includes: a first light source, comprising a plurality of point light sources, wherein the point light sources are respectively adapted to provide a first light beam to project one of the plurality of input device images, wherein each of the point light sources respectively correspond to Each of the input device images; a second light source adapted to provide a second light beam, wherein when an object contacts the image of the input device, the object reflects the second light beam into a reflected light beam; a sensing module includes a first sensing element and a second sensing element opposite to the first sensing unit, the first sensing unit and the second sensing unit are configured to detect the reflected beam; and a processing unit coupled Connected to the first light source, the second light source, and the sensing module, the processing unit obtains an input signal according to the reflected light beam, wherein when the input signal corresponds to a switching instruction for switching the input image, the The processing unit switches one of the point sources to project another image of the input through the other of the point sources. The electronic device of claim 1, wherein the point light sources are adapted to provide the first light beams of a plurality of colors, and the first light beams of the colors respectively correspond to different input devices image. The electronic device of claim 1, wherein the input device images are a virtual keyboard or a virtual touch panel. The electronic device of claim 3, wherein the input image is the virtual keyboard having an English input method, and the virtual input with a phonetic input method Keyboard or virtual keyboard with no shrimp input method. The electronic device of claim 1, further comprising: a first driving device coupled to the first light source, adapted to adjust a first direction of each of the point light sources to provide the first light beam; The second driving device is coupled to the second light source, and is adapted to adjust the second light source to provide a second direction of the second light beam. A third driving device is coupled to the sensing module, and is adapted to adjust the sense The detecting module detects a plurality of third directions of the reflected beam; and a controller coupled to the first driving device, the second driving unit and the third driving unit, and configured to detect the first driving device Adjusting a first change amount of each of the point light sources, and synchronously adjusting a second change amount when the second driving device adjusts the second light source according to the first change amount, and the third driving device adjusts the sense And a plurality of third changes in the module, wherein the first amount of change corresponds to the second amount of change and the third amount of change. The electronic device of claim 5, wherein the first driving device, the second driving device, and the third driving device are stepping motors, the first variation amount, the second variation amount, and the number of The third variation is the amount of change in the angle of rotation of the stepping motor. A method for generating a virtual input device, the electronic device having a first light source, wherein the first light source comprises a plurality of point light sources, the method comprising: providing a first light beam through one of the point light sources, Projecting one of a plurality of input image images, wherein each of the point light sources respectively corresponds to each of the inputs Providing a second light beam, and when an object contacts the image of the input device, the object reflects the second light beam into a reflected light beam; detecting the reflected light beam to obtain an input signal; and when the input signal corresponds to When switching a switching instruction of the input image, switching one of the point light sources to project another input image through the other of the point light sources. The method for generating a virtual input device according to claim 7, wherein the point light sources are adapted to provide the first light beams of a plurality of colors, and the first light beams of the colors respectively correspond to different These input image images. The method for generating a virtual input device according to claim 7, wherein the input device images are a virtual keyboard or a virtual touch panel. The method for generating a virtual input device according to claim 9, wherein the input image is the virtual keyboard having an English input method, the virtual keyboard having a phonetic input method, or the virtual input having a shrimp input method. keyboard. The method for generating a virtual input device according to claim 7, wherein a first driving device adjusts each of the point light sources to provide a first direction of the first light beam, and the second driving device adjusts a first direction. The second light source provides a second direction of the second light beam, and a third driving device adjusts a sensing module to detect a plurality of third directions of the reflected light beam, the method comprising: detecting the first driving a first amount of change when the device adjusts each of the point sources; And adjusting, according to the first change amount, a second change amount when the second driving device adjusts the second light source, and a plurality of third change amounts when the third driving device adjusts the sensing module, where The first amount of change corresponds to the second amount of change and the third amount of change. The method of generating a virtual input device according to claim 11, wherein the first driving device, the second driving device, and the third driving device are stepping motors, the first variation amount and the second variation amount. The third amount of change is the amount of change in the angle of rotation of the stepping motor. An electronic device includes: a first driving device coupled to a first light source, wherein the first light source comprises a plurality of point light sources respectively adapted to provide a first light beam, and the first driving device is adapted to adjust each of the a second light source is adapted to provide a second light source, wherein the second light source is adapted to provide a second light source, and the second driving device is adapted to adjust the first light source The second light source is configured to provide a second direction of the second light beam. The third driving device is coupled to the sensing module. The sensing module includes a first sensing component and a second sensing component. The third driving device is adapted to adjust the sensing module to detect a plurality of third directions of a reflected beam, and the third directions respectively correspond to the first sensing element and the second sensing element; and a controller The first driving device, the second driving unit, and the third driving unit are configured to detect a first change amount when the first driving device adjusts each of the point light sources, and according to the first change Quantity, synchronous adjustment of the second drive adjustment a second change amount of the second light source, and a plurality of third change amounts when the third driving device adjusts the sensing module, wherein the first change amount corresponds to the second change amount and the plurality of Three variations. The electronic device of claim 13, wherein the first driving device, the second driving device, and the third driving device are stepping motors, the first variation amount, the second variation amount, and the plurality of The third variation is the amount of change in the angle of rotation of the stepping motor. A method for generating a virtual input device, wherein a plurality of point light sources are respectively provided by a first driving device to provide a first direction of a first light beam, and a second driving device adjusts a second light source to provide a second a second direction of the light beam, and a third driving device for adjusting a sensing module to detect a plurality of third directions of the reflected light beam, the method comprising: detecting the first driving device adjusting each of the point light sources And a first change amount according to the first change amount, and a second change amount when the second driving device adjusts the second light source is synchronously adjusted, and when the third driving device adjusts the sensing module a third amount of change, wherein the first amount of change corresponds to the second amount of change and the third amount of change. The method for generating a virtual input device according to claim 15, wherein the first driving device, the second driving device, and the third driving device are stepping motors, the first variation amount and the second variation amount The third amount of change is the amount of change in the angle of rotation of the stepping motor.