TWI815487B - Electronic device and method of controlling mouse cursor - Google Patents

Abstract

An electronic device and a method of controlling a mouse cursor are provided. The method includes: obtaining a movement trajectory corresponding to the mouse cursor, wherein the movement trajectory includes a first mouse cursor, a second mouse cursor, and a third mouse cursor; calculating a first projection vector of the first mouse cursor and the second mouse cursor on a first axil and calculating a second projection vector of the second mouse cursor and the third mouse cursor on the first axil; in response to a first direction of the first projection vector being opposite to a second direction of the second projection vector, increasing a quantity count value corresponding to the movement trajectory; and in response to the quantity count value being greater than a quantity threshold, changing the outputted mouse cursor.

Description

Electronic device and method for controlling mouse cursor

The present invention relates to an electronic device and method for controlling a mouse cursor.

With the advancement of display technology, the resolution supported by the screen has been much higher than in the past. In addition, more and more users are beginning to use multi-screen computer configurations to improve work efficiency. However, the above factors will make it more difficult for users to grasp the position of the mouse cursor in real time. Therefore, how to help users quickly find the mouse cursor is one of the important issues in this field.

The present invention provides an electronic device and method for controlling a mouse cursor, which can make the mouse cursor more visible based on simple operating actions.

An electronic device for controlling a mouse cursor according to the present invention includes a first transceiver, a second transceiver and a processor. The first transceiver obtains a movement trajectory corresponding to the mouse cursor, where the movement trajectory includes a first cursor position, a second cursor position, and a third cursor position. The second transceiver outputs the mouse cursor. The processor is coupled to the first transceiver and the second transceiver, wherein the processor is configured to: calculate a first projection vector of the first cursor position and the second cursor position on the first axis, and calculate the second cursor position and a second projection vector of the third cursor position on the first axis; in response to the first direction of the first projection vector being opposite to the second direction of the second projection vector, increasing the number count value corresponding to the movement trajectory; and in response to the number If the count value is greater than the quantity threshold, change the output mouse cursor.

In an embodiment of the present invention, the above-mentioned first cursor position corresponds to a first time point, the second cursor position corresponds to a second time point later than the first time point, and the third cursor position corresponds to a second time point later than the first time point. At a third time point of the two time points, the processor is further configured to: in response to the length of the first projection vector being greater than the distance threshold, increment the quantity count value.

In an embodiment of the present invention, the above-mentioned processor is further configured to perform: in response to the first projection vector and the second projection vector being greater than the distance threshold, increasing the quantity count value.

In an embodiment of the present invention, the above-mentioned processor is further configured to: output the mouse cursor according to the display resolution; and determine the distance threshold according to the display resolution.

In an embodiment of the present invention, the above display resolution is proportional to the distance threshold.

In an embodiment of the present invention, the above-mentioned first cursor position corresponds to a first point in time, and the second cursor position corresponds to a second point in time, wherein the first point in time is adjacent to the second point in time, and the processor Further configured to perform: in response to the difference between the first time point and the second time point being less than or equal to the time threshold, calculating the first projection vector based on the first cursor position and the second cursor position.

In an embodiment of the present invention, the above-mentioned processor is further configured to perform: according to the difference in the cursor position, the interrupt notifies the processor to record.

In an embodiment of the present invention, the above-mentioned processor is further configured to: output a mouse cursor according to the display resolution; and determine the number of preset cursor positions and the size of the mouse track queue according to the display resolution.

In an embodiment of the present invention, the above-mentioned display resolution is proportional to the number of preset cursor positions.

In an embodiment of the present invention, the above-mentioned processor is further configured to: change the output mouse cursor in response to the second transceiver communicating with the plurality of displays.

In an embodiment of the present invention, the above-mentioned processor is further configured to perform: enlarging the mouse cursor to change the output mouse cursor.

A method of controlling a mouse cursor of the present invention includes: obtaining a movement trajectory corresponding to the mouse cursor, where the movement trajectory includes a first cursor position, a second cursor position, and a third cursor position; calculating the first cursor position and the second cursor position. a first projection vector of the cursor position on the first axis, and calculate a second projection vector of the second cursor position and the third cursor position on the first axis; in response to the first direction of the first projection vector and the second projection vector The second direction is opposite, increasing the quantity count value corresponding to the movement trajectory; and in response to the quantity count value being greater than the quantity threshold, changing the output mouse cursor.

Based on the above, the electronic device of the present invention can change or enlarge the mouse cursor according to the number of times the mouse cursor is shaken by the user, thereby prompting the user for the position of the mouse cursor.

In order to make the content of the present invention easier to understand, the following embodiments are given as examples according to which the present invention can be implemented. In addition, wherever possible, elements/components/steps with the same reference numbers in the drawings and embodiments represent the same or similar parts.

FIG. 1 is a schematic diagram of an electronic device 100 for controlling a mouse cursor according to an embodiment of the present invention. The electronic device 100 may include a processor 110, a storage medium 120, a transceiver 130, and a transceiver 140. The electronic device 100 is, for example, a mouse or a computing device. The electronic device 100 can change the display mode of the mouse cursor when the user operates the mouse to shake, thereby reminding the user of the position of the mouse cursor.

The processor 110 is, for example, a central processing unit (CPU), or other programmable general-purpose or special-purpose micro control unit (MCU), microprocessor, or digital signal processing unit. Digital signal processor (DSP), programmable controller, application specific integrated circuit (ASIC), graphics processing unit (GPU), image signal processor (ISP) ), image processing unit (IPU), arithmetic logic unit (ALU), complex programmable logic device (CPLD), field programmable gate array (field programmable gate array) , FPGA) or other similar components or a combination of the above components. The processor 110 may be coupled to the storage medium 120, the transceiver 130, and the transceiver 140, and access and execute multiple modules and various applications stored in the storage medium 120.

The storage medium 120 is, for example, any type of fixed or removable random access memory (RAM), read-only memory (ROM), or flash memory. , hard disk drive (HDD), solid state drive (SSD) or similar components or a combination of the above components, used to store multiple modules or various application programs that can be executed by the processor 110 . The above-mentioned multiple modules or applications may be resident programs (daemon) of the operating system (operation system, OS).

The transceiver 130 or the transceiver 140 transmits and receives signals in a wireless or wired manner. Transceiver 130 or transceiver 140 may also perform, for example, low noise amplification, impedance matching, mixing, up or down frequency conversion, filtering, amplification, and similar operations.

The electronic device 100 can obtain the movement trajectory corresponding to the mouse through the transceiver 130 . For example, if the electronic device 100 is a mouse, the transceiver 130 may be an infrared sensor, a laser sensor or a blue light sensor of the mouse. If the electronic device 100 is a computing device (eg, a computer), the transceiver 130 may be an input interface for receiving signals from a mouse.

The electronic device 100 can output the mouse cursor through the transceiver 140 . For example, if the electronic device 100 is a mouse, the transceiver 140 may be a PS/2 interface, a universal serial bus (USB) interface or a radio frequency transmitter for outputting mouse signals. If the electronic device 100 is a computing device (eg, a computer), the transceiver 140 can be used to output the mouse cursor signal to the display, thereby displaying the mouse cursor through the display.

FIG. 2 illustrates a flowchart of a method of controlling a mouse cursor according to an embodiment of the present invention, wherein the method can be implemented by the electronic device 100 shown in FIG. 1 . In step S201, the processor 110 may obtain the movement trajectory corresponding to the mouse cursor through the transceiver 130. The movement trajectory may include multiple cursor positions corresponding to multiple time points respectively. In this embodiment, the movement trajectory may include a first cursor position corresponding to the first time point, a second cursor position corresponding to the second time point, and a third cursor position corresponding to the third time point, where the second time point The time point is later than the first time point, and the third time point is later than the second time point.

In one embodiment, the processor 110 may receive a mouse input signal through the transceiver 130 and sample the movement trajectory of the mouse cursor from the input signal according to a preset number of cursor positions. If the movement trajectory contains too many cursor positions, the processor 110 may misjudge the user's multiple different operations on the mouse as the user shaking the mouse. The present invention avoids the above situation by limiting the number of cursor positions included in the movement trajectory used to determine whether the mouse is shaken. For example, assuming that the default number of cursor positions is equal to 50, the processor 110 can sample 50 cursor positions from the mouse input signal as the movement trajectory of the mouse.

In one embodiment, the processor 110 can output the mouse cursor according to the display resolution, and can determine the number of default cursor positions and the size of the mouse coordinate queue according to the display resolution, where the display resolution can be related to the default cursor position. Directly proportional to quantity. For example, assume that electronic device 100 is coupled to a display through transceiver 140 . The electronic device 100 can output image signals including a graphical user interface (GUI) and a mouse cursor to the display through the transceiver 140 . When the display resolution corresponding to the image signal is higher, the mouse cursor in the graphical user interface will be smaller, and the moving distance of the mouse cursor moved based on user operations will also be shortened. In this way, the processor 110 will need to sample more cursor positions to determine whether the user shakes the mouse based on these cursor positions. Therefore, the processor 110 can increase the number of default cursor positions and the size of the mouse coordinate queue as the display resolution increases.

In step S202, the processor 110 may determine whether the time difference between two temporally adjacent cursor positions is greater than a time threshold. If the time difference is greater than the time threshold, return to step S201. The processor 110 may re-execute step S201 after clearing the movement trajectory temporarily stored in the storage medium 120 . If the time difference is less than or equal to the time threshold, step S203 is entered. The time threshold can be between 0.5 seconds and 1 second.

Specifically, it is assumed that the first time point corresponding to the first cursor position and the second time point corresponding to the second cursor position are two adjacent sampling time points. The processor 110 may determine to return to step S201 in response to the difference between the first time point and the second time point being greater than the time threshold, and may decide to perform step S203 in response to the difference being less than or equal to the time threshold. When the time difference between two temporally adjacent cursor positions included in the movement trajectory is greater than the time threshold, it means that the two cursor positions may correspond to different operations rather than to the continuous action of shaking the mouse. Therefore, the processor 110 can determine that the user has not shaken the mouse, and thus decides to re-execute step S201.

In step S203, the processor 110 may store the movement trajectory to the storage medium 120, where the movement trajectory may be used to determine whether the user shakes the mouse. The processor 110 may calculate multiple projection vectors according to the movement trajectory.

3A and 3B are schematic diagrams of movement trajectories according to an embodiment of the present invention. Referring to FIG. 3A , assume that the first cursor position is P1, the second cursor position is P2, and the third cursor position is P3. The processor 110 can calculate the projection vector of the first cursor position P1 and the second cursor position P2 on the first axis (for example: X axis) , and calculate the projection vector of the second cursor position P2 and the third cursor position P3 on the first axis .

Returning to FIG. 2 , in step S204 , the processor 110 may generate a quantity count value according to a plurality of projection vectors. Taking FIG. 3A as an example, the initial value of the quantity count value may be zero. The processor 110 may respond to the projection vector direction (ie: positive X direction) and the projection vector The opposite direction (ie: negative X direction) increases the count value corresponding to the number of moving trajectories.

In order to prevent the user's hand trembling from being misjudged as a mouse shaking operation, the processor 110 may distinguish projection vectors corresponding to hand trembling or mouse shaking operations based on a distance threshold. In one embodiment, the unit of the distance threshold may be pixels of display resolution. For example, the distance threshold may be equal to 60 pixels. In one embodiment, the unit of the distance threshold may be an absolute length. For example, the distance threshold may be equal to 10 centimeters.

In one embodiment, the processor 110 may increase the number count value in response to the lengths of the two projection vectors in different directions being both greater than the distance threshold. Referring to FIG. 3A , assume that the distance threshold is D. The processor 110 may respond to the projection vector and projection vector The length of both is greater than the distance threshold D and the number count value is increased.

In one embodiment, the processor 110 may increment the quantity count value in response to the length of an earlier of the two projection vectors in different directions being greater than the distance threshold. Referring to FIG. 3B , assume that the distance threshold is D. The processor 110 may respond to the projection vector and projection vector The earlier projection vector in The length is greater than the distance threshold D and the number count value is increased. Projection vector Whether it is greater than the distance threshold D does not affect the processor 110 to increase the quantity count value.

When the display resolution corresponding to the image signal is higher, the mouse cursor in the graphical user interface will be smaller, and the moving distance of the mouse cursor moved based on user operations will also be shortened. Thus, the distance threshold D used to determine the mouse shaking operation will need to be adjusted to adapt to the new display resolution. In one embodiment, the processor 110 may determine the distance threshold D according to the display resolution, where the display resolution may be proportional to the distance threshold.

Returning to FIG. 2 , after calculating the quantity count value based on all projection vectors corresponding to the movement trajectory, in step S205 , the processor 110 may determine whether the quantity count value is greater than the quantity threshold. If the quantity count value is greater than the quantity threshold, it means that the user has shaken the mouse enough times. Accordingly, the processor 110 may decide to perform step S206. If the quantity count value is less than or equal to the quantity threshold, it means that the user has not shaken the mouse enough times. Accordingly, the processor 110 may decide to perform step S206.

In step S206, the processor 110 may change the output mouse cursor (eg, the appearance of the mouse cursor) to prompt the user for the position of the mouse cursor on the display. For example, the processor 110 may enlarge the mouse cursor to make the mouse cursor more visible.

In one embodiment, the processor 110 can change the output mouse cursor in response to the communication connection between the transceiver 140 and multiple displays, so that the user can quickly find the position of the mouse cursor from the multiple displays.

FIG. 4 illustrates a flowchart of a method of controlling a mouse cursor according to another embodiment of the present invention, wherein the method can be implemented by the electronic device 100 shown in FIG. 1 . In step S401, a movement trajectory corresponding to the mouse cursor is obtained, where the movement trajectory includes a first cursor position, a second cursor position, and a third cursor position. In step S402, a first projection vector of the first cursor position and the second cursor position on the first axis is calculated, and a second projection vector of the second cursor position and the third cursor position on the first axis is calculated. In step S403, in response to the first direction of the first projection vector being opposite to the second direction of the second projection vector, the number count value corresponding to the movement trajectory is increased. In step S404, in response to the quantity count being greater than the quantity threshold, the output mouse cursor is changed.

In summary, the electronic device of the present invention can determine whether to change the mouse cursor according to the movement trajectory of the mouse cursor to prompt the user for the position of the mouse cursor. If the number of times the user shakes the mouse is greater than the quantity threshold, the electronic device can change the mouse cursor. In addition, the electronic device can also determine whether the shaking is effective based on the comparison between the moving distance of the mouse when it is shaken and the distance threshold, thereby preventing the electronic device from misjudging the user's hand trembling as shaking the mouse. On the other hand, the electronic device can adjust the distance threshold or the method of sampling movement trajectories according to the display resolution, thereby automatically optimizing the method of controlling the mouse cursor to adapt to screens of different specifications. The electronic device can also change the mouse cursor when the user uses a multi-screen configuration to help the user quickly find the location of the mouse cursor on multiple screens.

100: Electronic device 110: Processor 120: Storage media 130, 140: Transceivers P1, P2, P3: Cursor position , : Projection vectors S201, S202, S203, S204, S205, S206, S401, S402, S403, S404: Steps

FIG. 1 is a schematic diagram of an electronic device for controlling a mouse cursor according to an embodiment of the present invention. FIG. 2 illustrates a flowchart of a method of controlling a mouse cursor according to an embodiment of the present invention. 3A and 3B are schematic diagrams of movement trajectories according to an embodiment of the present invention. FIG. 4 illustrates a flowchart of a method of controlling a mouse cursor according to another embodiment of the present invention.

S401, S402, S403, S404: steps

Claims (10)

An electronic device for controlling a mouse cursor, including: a first transceiver to obtain a movement trajectory corresponding to the mouse cursor, wherein the movement trajectory includes a first cursor position, a second cursor position, and a third cursor position; two transceivers, outputting the mouse cursor according to the display resolution; and a processor, coupled to the first transceiver and the second transceiver, wherein the processor is configured to perform: according to the display resolution determine the distance threshold; calculate the first projection vector of the first cursor position and the second cursor position on the first axis, and calculate the second cursor position and the third cursor position on the first axis a second projection vector on the axis; in response to the first direction of the first projection vector being opposite the second direction of the second projection vector and the first projection vector and the second projection vector being greater than the distance a threshold value, increasing a quantity count value corresponding to the movement trajectory; and in response to the quantity count value being greater than a quantity threshold value, changing the output mouse cursor. The electronic device of claim 1, wherein the first cursor position corresponds to a first time point, the second cursor position corresponds to a second time point later than the first time point, and the third cursor position corresponds to a second time point later than the first time point. Three cursor positions correspond to a third time point later than the second time point, wherein the processor is further configured to: in response to a length of the first projection vector being greater than a distance threshold, increasing the number Quantity value. The electronic device according to claim 1, wherein the display resolution is proportional to the distance threshold. The electronic device of claim 1, wherein the first cursor position corresponds to a first time point, and the second cursor position corresponds to a second time point, wherein the first time point is the same as the second time point. The time points are adjacent, wherein the processor is further configured to perform: in response to the difference between the first time point and the second time point being less than or equal to a time threshold, according to the first cursor position and The second cursor position calculates the first projection vector. The electronic device of claim 1, wherein the processor is further configured to perform: sampling the movement trajectory according to a preset number of cursor positions. The electronic device of claim 5, wherein the processor is further configured to: output the mouse cursor according to the display resolution; and determine the preset number of cursor positions according to the display resolution. The electronic device according to claim 5, wherein the display resolution is proportional to the number of preset cursor positions. The electronic device of claim 1, wherein the processor is further configured to perform: in response to the second transceiver communicating with a plurality of displays, changing the output of the mouse cursor. The electronic device of claim 1, wherein the processor is further configured to perform: enlarging the mouse cursor to change the output mouse cursor. A method for controlling a mouse cursor, including: obtaining a movement trajectory corresponding to the mouse cursor, wherein the movement trajectory includes a first cursor position, a second cursor position, and a third cursor position; and outputting the said movement trajectory according to the display resolution. Mouse cursor; determine a distance threshold according to the display resolution; calculate the first projection vector of the first cursor position and the second cursor position on the first axis, and calculate the second cursor position and the a second projection vector of a third cursor position on the first axis; in response to the first direction of the first projection vector being opposite to the second direction of the second projection vector and the sum of the first projection vector and the The second projection vector is greater than the distance threshold, increasing the number count value corresponding to the movement trajectory; and in response to the number count value being greater than the number threshold, changing the output mouse cursor.

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