TWI683243B - Optical mouse and controlling method thereof - Google Patents

Abstract

An optical mouse including a light emitting element, a controller and a color sensor is provided. The light emitting element is disposed at a bottom of the optical mouse and configured to emit a positioning light, where the optical mouse detects a reflection of the positioning light to calculate a movement of the optical mouse. The controller is configured to determine whether the optical mouse is operated in a color correction mode, and shut the light emitting element down according to a determination result of determining whether the optical mouse is operated in the color correction mode. The color sensor is disposed at the bottom of the optical mouse, and configured to obtain spectral data for the color correction mode. In addition, a mouse control method of the optical mouse is also provided.

Description

Optical mouse and its control method

The invention relates to a mouse, and in particular to an optical mouse which can be used as a color correction tool and a control method thereof.

Due to the physical characteristics of each display unit in the display, the color of the screen displayed by the display will gradually deviate from the standard after a long period of use. At this time, the color correction of the display is required to correct the color deviation of the display.

Most of the monitor color correction devices sold in the market are connected to a color correction device equipped with a photosensitive element through a Universal Serial Bus (USB), as long as it is used with an application to make the display output a color correction picture After obtaining the panel information of the display from the photosensitive element, it can perform color correction according to the panel condition. However, although the color calibration process is simple, it requires additional high unit price hardware to assist.

In view of this, embodiments of the present invention provide an optical mouse and a control method thereof, which can use the optical mouse as a color calibration tool, reduce color calibration cost, and improve convenience.

The optical mouse of the present invention includes a light emitting element, a controller, and a chromaticity sensor. The light-emitting element is arranged at the bottom of the optical mouse and used to emit positioning light, wherein the optical mouse detects the reflection of the positioning light to calculate the movement amount of the optical mouse. The controller is coupled to the light-emitting element to determine whether the optical mouse is operating in the color correction mode, and turns off the light-emitting element according to the decision result of whether the optical mouse is operating in the color correction mode. The chromaticity sensor is disposed at the bottom of the optical mouse, coupled to the controller, and used to obtain the spectral data required for the color correction mode.

In an embodiment of the invention, the above positioning light corresponds to the positioning wavelength, and the controller determines whether the optical mouse operates in the color calibration mode according to the spectral data and the positioning wavelength.

In an embodiment of the present invention, the above controller is used to: determine the light intensity ratio corresponding to the positioning wavelength in the spectral data; and determine whether the optical mouse operates in the color calibration mode according to the light intensity ratio and the ratio threshold.

In an embodiment of the invention, the above-mentioned optical mouse further includes a gravity sensor. The gravity sensor is coupled to the controller and used to obtain acceleration data. The controller determines whether the optical mouse operates in the color calibration mode according to the acceleration data.

In an embodiment of the invention, the above-mentioned optical mouse further includes a communication interface. The communication interface is coupled to the controller and used to receive external signals. The controller determines that the optical mouse operates in the color calibration mode according to the external signals.

The mouse control method of the embodiment of the present invention is applicable to an optical mouse. The bottom of the optical mouse is provided with a light emitting element, wherein the light emitting element is used to emit positioning light, and the optical mouse detects the reflection of the positioning light to calculate the movement amount of the optical mouse. The mouse control method includes the following steps: determining whether the optical mouse is operating in the color calibration mode; and turning off the light emitting element of the optical mouse when determining that the optical mouse is operating in the color calibration mode. The bottom of the optical mouse is further provided with a chromaticity sensor for obtaining the spectral data required for the color correction mode.

In an embodiment of the invention, the positioning light corresponds to the positioning wavelength, and the step of determining whether the optical mouse is operating in the color calibration mode includes the following steps: determining whether the optical mouse is operating in the color calibration according to the spectral data and the positioning wavelength mode.

In an embodiment of the invention, the step of determining whether the optical mouse is operating in the color calibration mode further includes the following steps: determining the light intensity ratio corresponding to the positioning wavelength in the spectral data; and according to the light intensity ratio and the proportional threshold Determines whether the optical mouse is operating in the color calibration mode.

In an embodiment of the invention, the step of determining whether the optical mouse operates in the color calibration mode includes the following steps: sensing the attitude of the optical mouse; and determining whether the optical mouse operates in the school according to the attitude of the optical mouse Color mode.

In an embodiment of the invention, the step of determining whether the optical mouse operates in the color calibration mode includes the following steps: receiving an external signal; and determining the optical mouse operating in the color calibration mode according to the external signal.

Based on the above, the optical mouse and its control method proposed in the embodiments of the present invention are provided with a chromaticity sensor in the optical mouse. The chromaticity sensor can obtain the spectral data required for the color correction mode. Therefore, the optical mouse It can be used as a color calibration tool, which is convenient and cost-saving. In particular, the light emitting element of the optical mouse is turned off when the optical mouse is switched to the color calibration mode, so that the light emitting element for positioning does not interfere with the chromaticity sensor and improves the accuracy of color calibration.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

FIG. 1 is a schematic block diagram of an optical mouse in an embodiment of the invention.

Please refer to FIG. 1. The optical mouse 100 includes a controller 110, a light emitting element 120 and a chromaticity sensor 130. The light emitting element 120 and the chromaticity sensor 130 are both coupled to the controller 130. In some embodiments, the optical mouse 100 can operate in a positioning mode or a color calibration mode. Specifically, the optical mouse 100 operates in the positioning mode during normal use, for example, it is coupled to an external host (not shown) and used to position the cursor in the display of the external host. In detail, the optical mouse 100 will detect the reflection of the positioning light on the surface (for example, an opaque tabletop or mouse pad, etc.) to calculate the movement of the optical mouse 100 on the surface, and those skilled in the art can understand The definition and operation of the optical mouse will not be repeated in this article. On the other hand, when the optical mouse 100 operates in the color calibration mode, for example, it is coupled to the display of the external host and hung upright from the display of the external host for color calibration of the display.

The controller 110 is used to control various components in the optical mouse 100. In some embodiments, the controller 100 is a hardware device with computing capabilities, such as a programmable general-purpose or special-purpose microprocessor (Microprocessor), digital signal processor (DSP), programmable Controller, application specific integrated circuits (ASIC), programmable logic device (Programmable Logic Device, PLD) or other similar devices or a combination of these devices.

The light emitting element 120 is coupled to the controller 110, is disposed at the bottom of the optical mouse 100, and is used to emit positioning light, and the movement of the optical mouse 100 relative to the surface is determined according to the positioning light emitted by the light emitting element 120. In other words, the optical mouse 100 detects the reflection of the positioning light to calculate the amount of movement of the optical mouse 100. The light emitting element 120 may be different according to the type or design of the optical mouse 100, and the positioning light emitted by the light emitting element 120 corresponds to a specific wavelength range, and the specific wavelength range corresponding to the positioning light is hereinafter referred to as a positioning wavelength. For example, in some embodiments, the light-emitting element 120 is a red light-emitting diode (Light-Emitting Diode, LED), and when emitting red light in the first wavelength range, the localization wavelength is the visible red light wavelength in the first wavelength range; In some embodiments, the light-emitting element 120 is a blue light-emitting diode (Light-Emitting Diode, LED). When emitting blue light in the second wavelength range, the localization wavelength is the visible blue light wavelength in the second wavelength range; while in some embodiments The light emitting element 120 is a laser diode of infrared light, and when emitting infrared light in the third wavelength range, the wavelength of infrared light in the third wavelength range is located. However, the present invention does not limit the wavelength range of the positioning light emitted by the light emitting element 120 in the optical mouse 100 here.

The chromaticity sensor 130 is coupled to the controller 110, is disposed at the bottom of the optical mouse 100, and is used to obtain spectral data required for the color correction mode. In some embodiments, the chromaticity sensor 130 disposed at the bottom of the optical mouse 100 can obtain spectral data including light intensities corresponding to multiple wavelengths. In the color calibration mode, the application program of the external host displays a color calibration picture on the color calibration object (for example, a display), and the optical mouse 100 receives the light emission of the color calibration object through the chromaticity sensor 130 to obtain Spectral data, and the application can perform color correction based on this spectral data.

It is worth mentioning that, in order to prevent the positioning light emitted by the light emitting element 120 of the optical mouse 100 from interfering with the chromaticity sensor 130, the spectral data obtained by the chromaticity sensor 130 cannot accurately reflect the color correction object Light, the controller 110 of the optical mouse 100 determines whether the optical mouse 100 is operating in the positioning mode (for example, as an input device, positioning the cursor on the display, etc.) or the color calibration mode, and is turned off according to the decision result The light emitting element 120, for example, turns off the light emitting element 120 when the optical mouse 100 operates in the color calibration mode, so that the light emitting element 120 does not emit positioning light.

In some embodiments, the spectral data obtained by the chromaticity sensor 130 can be used to determine whether the optical mouse 100 is operating in the color calibration mode. For example, when the optical mouse 100 is in the positioning mode and is in normal use, the light sensed by the chromaticity sensor 130 is mostly the positioning light emitted by the light emitting element 120. Therefore, the controller 110 sets a proportional threshold, for example, when the spectral data of all the light obtained by the chromaticity sensor 130, the ratio of the light intensity of the light whose wavelength belongs to the positioning wavelength is lower than the proportional threshold, the optical slip is determined The mouse 100 operates in the color calibration mode rather than the positioning mode.

However, in many cases, it is not sufficient to use the chromaticity sensor 130 to make a judgment. For example, the light emitting element 120 of the optical mouse 100 may be reduced or turned off due to idleness or other reasons, so that the chromaticity sensor 130 cannot correctly determine whether the optical mouse 100 is operating in the color calibration mode from the spectral data.

Based on this, in some embodiments, in addition to the controller 110, the light emitting element 120, and the chromaticity sensor 130, the optical mouse 100 further includes both the gravity sensor 140 (G-sensor) and the communication element 150 At least one of them.

The gravity sensor 140 is coupled to the controller 110, is disposed inside the optical mouse 100, and is used to obtain acceleration data, and the controller 110 can determine whether the optical mouse 100 is based on the acceleration data obtained by the gravity sensor 140 Operate in the school color mode. Specifically, the acceleration data obtained by the gravity sensor 140 can reflect the current posture of the optical mouse 100, such as being normally placed on the upward surface SF, reversely placed on the upward surface SF, or standing upright. The controller 110 obtains acceleration data through the gravity sensor 140 is equivalent to sensing the posture of the optical mouse 100, and can further determine whether the optical mouse 100 operates in the color calibration mode according to the posture of the optical mouse 100.

2A to 2C are schematic diagrams illustrating the posture of the optical mouse in an embodiment of the invention.

As shown in the embodiments of FIGS. 2A to 2C, the gravity sensor 140 is preset with three axes of X, Y, and Z, where the Z axis points in the direction of the bottom surface of the optical mouse 100 (for example, the bottom of the optical mouse 100 Normal direction of the surface). Referring to FIG. 2A, when the optical mouse 100 is normally placed on the upward surface SF (for example, a desktop or a mouse pad, etc.), the gravity sensor 140 may sense acceleration data of (0, 0, g), for example. g is, for example, the acceleration value of gravity; please refer to FIG. 2B, when the optical mouse 100 is placed on the upward surface SF upside down, the gravity sensor 140 may sense acceleration data of (0, 0, -g), for example; please refer to 2C, when the optical mouse 100 is hung upright on the display DP, the gravity sensor 140 may sense acceleration data of (0, -g, 0), for example.

In some embodiments, when the controller 110 determines that the bottom of the optical mouse 100 is not facing downward based on the acceleration data, it is determined that the optical mouse 100 is operating in the color calibration mode. Taking FIGS. 2A to 2C as an example, when the controller 110 determines that the acceleration value of the Z axis is less than or equal to zero, it determines that the optical mouse 100 is operating in the color calibration mode. However, the present invention does not limit the controller 110 to determine whether the optical mouse 100 operates in the color calibration mode based on the acceleration data. Those with ordinary knowledge in the field can determine the posture of the optical mouse 100 to be operated in the color calibration mode according to their needs, and then determine the judgment criteria of the acceleration data.

The communication element 150 is coupled to the controller 110 and used to obtain the external signal SNL. The controller 110 can determine whether the optical mouse 100 operates in the color calibration mode according to the external signal SNL. For example, the application program of the external host can directly issue an instruction to the optical mouse 100 through the external signal SNL, and instruct the controller 110 to turn off the light emitting element 120 and enter the color correction mode. In some embodiments, the communication element 150 is, for example, a wired USB, PS/2, or RS232 interface, or, for example, a wireless infrared or Bluetooth interface, and the invention is not limited thereto.

In the foregoing embodiment, three methods are introduced. The external signal SNL received by the color sensor 130, the gravity sensor 140, and the communication element 150 is used to determine whether the optical mouse 100 operates in the color calibration mode. According to the design requirements, those with ordinary knowledge in the technical field can choose one or more methods to implement, or use other methods and judgment criteria to determine whether the optical mouse 100 operates in the color calibration mode. For restrictions.

3 is a flowchart of a mouse control method according to an embodiment of the invention.

Referring to FIG. 3, in step S110, the controller 110 determines whether the optical mouse 100 operates in the color calibration mode. In some embodiments, the controller 110 determines, for example, whether the optical mouse 100 is operating in the positioning mode or the color calibration mode. The specific methods and details have been introduced in the foregoing paragraphs with embodiments, so they will not be repeated here.

If the controller 110 determines that the optical mouse 100 is not operating in the color correction mode, then in step S120, the optical mouse 100 is operated in the positioning mode. In some embodiments, while the controller 110 operates the optical mouse 100 in the positioning mode, it continuously obtains the spectral data of the chromaticity sensor 130, the acceleration data of the gravity sensor 140, or detects the data from the communication device The external signal of 150 determines whether the optical mouse 100 enters the color calibration mode (for example, returning to step S110).

On the other hand, if the controller 110 determines that the optical mouse 100 is operating in the color calibration mode, step S130 is entered, and the controller 110 turns off the light emitting element 120. In some embodiments, after entering the color calibration mode, the controller 110 will start to transmit the spectral data obtained by the chromaticity sensor 130 to the external host through the communication element 150.

In some embodiments, when the optical mouse 100 operates in the color calibration mode, the controller 110 still continuously obtains the spectral data of the chromaticity sensor 130, the acceleration data of the gravity sensor 140, or the detection from the communication element 150 To determine whether the optical mouse 100 is operating in the color calibration mode, and when it is determined that the optical mouse 100 is not operating in the color calibration mode, activate the light emitting element 120 and return to the positioning mode.

In summary, the optical mouse and its control method proposed in the embodiments of the present invention are provided with a chromaticity sensor in the optical mouse. The chromaticity sensor can obtain the spectral data required for the color correction mode. The mouse can be used as a color calibration tool, which is convenient and cost-effective. In particular, the light emitting element of the optical mouse is turned off when the optical mouse is switched to the color calibration mode, so that the light emitting element for positioning does not interfere with the chromaticity sensor and improves the accuracy of color calibration.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

100‧‧‧Optical mouse 110‧‧‧Controller 120‧‧‧Lighting element 130‧‧‧Color sensor 140‧‧‧gravity sensor 150‧‧‧Communication components DP‧‧‧Monitor S110, S120, S130‧‧‧‧Mouse control method steps SF‧‧‧Upward surface SNL‧‧‧External signal X, Y, Z‧‧‧axial

FIG. 1 is a schematic block diagram of an optical mouse in an embodiment of the invention. 2A to 2C are schematic diagrams illustrating the posture of the optical mouse in an embodiment of the invention. FIG. 3 is a flowchart of a mouse control method according to an embodiment of the invention.

S110, S120, S130‧‧‧‧Mouse control method steps

Claims (8)

An optical mouse includes: a light-emitting element, which is arranged at a bottom of the optical mouse, and is used to emit a positioning light, wherein the optical mouse detects a reflection of the positioning light to calculate one of the optical mouse Amount of movement, where the positioning light corresponds to a positioning wavelength; a controller, coupled to the light emitting element, is used to determine whether the optical mouse is operating in a color calibration mode, and according to whether the optical mouse is operating in the school A decision result of the color mode turns off the light-emitting element; and a chromaticity sensor is disposed at the bottom of the optical mouse, is coupled to the controller, and is used to obtain a spectral data required by the color correction mode, The controller determines whether the optical mouse operates in the color correction mode according to the spectral data and the positioning wavelength. The optical mouse as described in item 1 of the patent application scope, wherein the controller is used to: determine a light intensity ratio corresponding to the localized wavelength in the spectral data; and determine the optical according to the light intensity ratio and a ratio threshold Whether the mouse is operating in the color correction mode. The optical mouse as described in item 1 of the patent scope further includes: a gravity sensor, coupled to the controller, and used to obtain an acceleration data, wherein the controller determines the optical slider according to the acceleration data Whether the mouse is operating in the calibration mode. The optical mouse as described in item 1 of the patent scope further includes: a communication interface coupled to the controller and used to receive an external signal, wherein the controller determines the operation of the optical mouse according to the external signal In this calibration mode. A mouse control method is applicable to an optical mouse, wherein a light emitting element is provided at a bottom of the optical mouse, wherein the light emitting element is used to emit a positioning light, and the optical mouse detects a reflection of the positioning light To calculate a movement amount of the optical mouse, wherein the positioning light corresponds to a positioning wavelength, the mouse control method includes: determining whether the optical mouse operates in a color correction mode; and determining whether the optical mouse operates in During the color correction mode, the light emitting element of the optical mouse is turned off, wherein a chromaticity sensor is further provided at the bottom of the optical mouse to obtain a spectral data required by the color correction mode; and according to the The spectral data and the positioning wavelength determine whether the optical mouse operates in the color correction mode. The mouse control method as described in item 5 of the patent application, wherein the step of determining whether the optical mouse operates in the color correction mode further includes: determining a light intensity ratio corresponding to the localized wavelength in the spectral data; and According to the light intensity ratio and a proportional threshold, it is determined whether the optical mouse operates in the color correction mode. The mouse control method as described in item 5 of the patent application, wherein the step of determining whether the optical mouse operates in the color correction mode includes: Sensing an attitude of the optical mouse; and determining whether the optical mouse is operating in the color correction mode according to the attitude of the optical mouse. The mouse control method as described in item 5 of the patent application, wherein the step of determining whether the optical mouse is operating in the color correction mode includes: receiving an external signal; and determining that the optical mouse is operating on the external signal according to the external signal Calibration mode.

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