WO2012071770A1

WO2012071770A1 - Optics and acceleration combined positioning mouse and acceleration correction mode thereof

Info

Publication number: WO2012071770A1
Application number: PCT/CN2011/000954
Authority: WO
Inventors: 邓仕林
Original assignee: Deng Shilin
Priority date: 2010-12-01
Filing date: 2011-06-07
Publication date: 2012-06-07
Also published as: CN102033630A

Abstract

A pen-shaped mouse device or a finger mouse device, an acceleration correction method and a position computation method are disclosed. The mouse device includes an image sensor (1), an acceleration sensor (2) and a micro-control and information transmission unit (4), wherein the micro-control and information transmission unit (4) is used for receiving optical displacement information and acceleration information. The method includes: when the positioning by the image sensor (1) is good, the computed acceleration according to the displacement information detected by the image sensor (1) and the acceleration detected by the acceleration sensor (2) are compared to obtain a correction value of the acceleration; when the positioning by the image sensor (1) is poor, the displacement is computed according to the original effective displacement information optically detected and the corrected acceleration displacement information.

Description

Optical and acceleration joint positioning mouse and its acceleration correction method

The invention relates to a pen-shaped mouse device (hereinafter referred to as a pen mouse) combined with an image sensor positioning and an acceleration sensor positioning, or a mouse device with a finger fixing kit (hereinafter referred to as a wearing mouse) and an acceleration correction method thereof And positioning calculation method. Specifically, the present invention relates to a positioning correction method for a mouse device, wherein the micro control unit is configured to receive optical displacement information, acceleration information, and the like, and use the optical displacement information to correct the acceleration sensor to an angle with the ground plane and receive the gravity acceleration by using a corresponding calculation method. The deviation between the detected acceleration caused by the influence and the actual motion acceleration of the mouse, and the displacement information of the output mouse is calculated and output.

Background technique: '

In the conventional ordinary mouse, since the object distance is relatively fixed during use, the optical imaging device with a fixed object distance can accurately image and position. The principle of such an optical mouse is disclosed in U.S. Patent No. 6,233,368, the entire disclosure of which is incorporated herein by reference. In this patent, an illuminator housed in an optical mouse illuminates a work surface disposed directly beneath the optical mouse, and an imaging system mounted therein images any pattern or feature of the work surface on the light-sensing surface of the CMOS sensor. Since the mouse is in direct contact with the working surface during operation, the working surface is fixed from the imaging device, and the imaging lens with the fixed object distance is accurately imaged and positioned.

Since the shape of the mouse is different from that of a normal writing tool, it is necessary to operate the entire mouse in the hand, so it is difficult to perform writing and drawing operations. A pen-shaped mouse device has been developed which enables accurate cursor control and simple writing when performing precise drawing operations or writing. An example of such a pen-shaped mouse is disclosed in U.S. Patent No. 6,151,015 issued to November 21, 2000 (hereinafter referred to as "015 Patent") entitled "Pen-like Computer Indicating Device". As shown in FIG. 1, the indicating device includes a cylinder 102, an illuminating light source 104, a lens 110, an optical shifting sensor 108, a switch 106, communication links 116 and 118, and buttons 112 and 114. The illuminating source 104 emits light, and the lens 110 images the light reflected from the working surface on the optical movement sensor 108. Thus, when the optical motion sensor 108 captures an image of the work surface imaged by the lens 110, the motion vector of the pointing device can be obtained from the change in the image.

However, the optical imaging device of the "015 patent" has a large disadvantage in drawing or writing. When the distance between the pointing device and the working surface fluctuates greatly, the depth of field of the optical imaging system with fixed image distance limits it to work. The imaging on the image sensor is blurred, which affects the capture of the image by the sensor, making positioning difficult. Referring to Fig. 2 for the input of the character "X", the operation of the pen is usually composed of a combination of a pen down motion and a pen lift motion. In Figure 2, when the letter "X" is written, the writing action consists of the following steps: 1. Step Ml: Write the pen at a specific point, then write "/"; 2. Step M2: Lift the pen, then stroke it in the air. Arc of the hour hand; Step M3: Write the pen at a specific point, write "\", and then lift the pen. Throughout the writing process, the mouse is required to maintain precise positioning regardless of the pen and pen. Usually, the distance separating from the work surface in the pen movement is different depending on the usage habits of different people. However, when the pen is moved, due to the depth of field limitation of the lens, the image is ambiguous and cannot be accurately positioned.

In order to enable the mouse to be positioned in three-dimensional space, a mouse has been developed in which an acceleration sensor is placed in the mouse, and the amount of spatial displacement of the mouse is calculated by detecting the acceleration of the mouse. The Chinese application number 200820026207. 6 (hereinafter referred to as "076 Patent") published on September 2, 2009 is named "Acceleration Sensor Mouse Pen" Opened an example of such a mouse. As shown in FIG. 3, it includes an acceleration sensor module, a wireless transmission module, a wireless receiving module and a driving module. Since the acceleration positioning of the mouse is detected, the initial motion vector of the mouse needs to be determined in advance, but the scheme uses the initial vector for determining the stationary period of the mouse, and the standard drift is likely to occur during the long-term continuous motion. "" In order to overcome the difficulty of positioning the optical mouse when lifting the pen, and the initial vector of the accelerometer mouse is difficult to determine, it is easy to appear the cursor drifting in use, and a mouse is needed, which can be worn in a pen mouse or finger The mouse is mounted in a small volume and allows the mouse to maintain a more accurate positioning regardless of the pen and the pen when writing or drawing smoothly.

Summary of the invention:

The present invention has been conceived to solve the above problems. The main object of the present invention is to provide a positioning device that can be installed in a pen mouse or a finger-operated mouse, and a positioning and correction method thereof, which can be installed in a small volume of a pen mouse or a finger-operated mouse, and When the pen mouse is smoothly written or drawn, the mouse is required to maintain accurate positioning regardless of the pen and the pen. It is based on: 1. The optical mouse with fixed image distance can be accurately positioned at a certain object distance; 2. In the case where the initial motion vector is known, the acceleration sensor is used to detect the acceleration change of the mouse, and the energy can be changed according to the detected acceleration. Smoothly calculate the change of the motion vector to calculate the displacement and achieve the positioning. According to the above characteristics, the image sensor and the acceleration sensor are simultaneously embedded in the mouse, and the respective characteristics of the image sensor and the acceleration sensor are utilized to form an advantageous complement and achieve precise positioning.

The two axial directions that are perpendicular to each other and the intersection of the mouse and the working surface are respectively the X-axis and the Y-axis. When the mouse is placed in contact with the working surface, the working surface is clearly imaged by the lens group on the light sensing surface of the image sensor, and the image sensor is well positioned.

When the applied image sensor is well positioned, the displacement state in the X-axis and Y-axis directions detected by the image sensor is directly positioned and output.

Due to the change of working surface and mouse distance, the limitation of the depth of field of the mouse lens group, the material of the working surface, etc., when the image sensor is poorly positioned, the acceleration sensor should be applied for acceleration detection to obtain the acceleration change of the mouse and perform positioning calculation. .

When the acceleration sensor is used to detect the motion acceleration of the mouse, since the X-axis and the Y-axis of the acceleration sensor may be at an angle to the ground plane, the acceleration and the actual motion of the X-axis and Y-axis directions detected by the acceleration sensor are affected by the acceleration of gravity. Acceleration may vary. In order to reduce the impact of this difference on mouse positioning, it is necessary to correct the acceleration detected by the acceleration sensor. '

The method of correcting the acceleration values in the X-axis and Y-axis directions detected by the acceleration sensor is: when the image sensor is well positioned, the image sensor is used to detect the displacement information of the mouse in the X-axis and Y-axis directions, and the displacement detected by the image sensor is used. The information calculates the motion acceleration value of the mouse in the X-axis and Y-axis directions, that is, the actual acceleration of the mouse is obtained; in the X-axis and Y-axis directions, the acceleration detected by the acceleration sensor is compared with the actual acceleration calculated by the image sensor detection, Calculate the difference between them, that is, the acceleration correction value of the mouse in the X-axis and Y-axis directions; when applying the acceleration sensor for positioning, apply the above-mentioned acceleration correction value to correct the X-axis and Y-axis directions detected by the acceleration sensor respectively. The acceleration value gives the actual acceleration value of the mouse. .

When the applied image sensor is poorly positioned, calculate the corresponding period after applying the acceleration sensor (set to The displacement of the n-cycle can be based on the displacement vector of the X-axis and Y-axis detected by the image sensor as the initial motion vector before the image sensor is positioned well, and the cycle time and after correction are used. The actual acceleration value of the mouse from the 1st to the _nth cycle can calculate the displacement amount in the X-axis and Y-axis directions of the nth cycle in which the acceleration sensor is positioned, and output the result. '

It can be seen that when the distance between the mouse and the working surface is changed, the mouse can achieve more accurate positioning regardless of whether the optical positioning of the mouse is good or not.

It can be seen from the above that during the positioning process, it is necessary to correctly judge whether the image sensor is positioned well. The commonly used methods for judging whether the image sensor is positioned well are as follows: 1. Install a pressure sensor on the pen-shaped mouse or the finger-worn mouse to detect the contact between the mouse and the working surface. When the mouse is in contact with the working surface, the working surface is located. The depth of the optical lens group of the mouse is within the range of depth of view, so that when the front end of the mouse is in contact with the working surface, it can be determined that the image sensor of the mouse is well positioned. 2. Using the image sharpness detected by the image sensor to determine the positioning of the image sensor of the mouse; generally, when the working surface is imaged by the lens group on the light sensing surface of the image sensor, the image detected by the image sensor is clear, image processing The device can determine the image quality of the image, and judge whether the image sensor is positioned well or not, and output information indicating whether the image sensor is well positioned. The above two methods can be applied at the same time and complement each other to facilitate correct judgment.

When the mouse is writing or drawing, it is also necessary to determine whether it is the pen down state. The commonly used methods for judging whether it is the pen down state are as follows: 1. Install a pressure sensor on the pen mouse or the finger-worn mouse to detect whether the mouse and the work surface are Contact to determine whether it is in the pen down state; further, use the pressure sensor to understand the strength of the contact pressure between the mouse and the working surface, and also control the size of the handwriting to enhance the writing and painting effects. 2. Determine the positioning of the image sensor of the mouse according to the image detected by the image sensor. When the image sensor is well positioned, the working surface is located within the depth of field of the lens group. Generally, the effective depth of field of the mouse lens group is small, and the mouse is set. When the working surface is in contact, the working surface is located in the depth of field of the lens group. Therefore, when the image sensor light sensing surface is well formed, the mouse is in contact with the working surface, that is, the mouse is in the pen down state. 3. The acceleration sensor of the mouse applies a three-axis acceleration sensor, and sets the axis perpendicular to the X-axis and the Y-axis on the mouse to be the Z-axis. The mouse image sensor is well positioned, and the mouse applies the image sensor to the specified motion. In the distance or distance, when the acceleration vector detected by the acceleration sensor on the Z axis is substantially constant, the mouse and the working surface are defined as the contact state, that is, the mouse is in the pen down state.

The significant advantages of the above invention are: When there is a change in the tilt angle during use of the pen mouse and the finger-worn mouse, the respective characteristics of the optical positioning and the acceleration positioning can be used to correct the detected acceleration of the acceleration sensor, so that the mouse is More accurate positioning can be made at different distances from the working surface.

BRIEF DESCRIPTION OF THE DRAWINGS:

The above objects and features of the present invention will become apparent from the following description of the preferred embodiments. among them:

Figure 1 is a schematic view showing the structure of a "computer-like indicating device similar to a pen" of the "015 patent";

Figure 2 is a diagram showing the steps of writing the letter "X";

3 is a circuit block diagram of a pen mouse of the "076 Patent" entitled "Acceleration Sensor Mouse Pen"; FIG. 4 is a preferred circuit block diagram of "Optical and Acceleration Joint Positioning Mouse".

FIG. 5 is a preferred acceleration correction, positioning judgment and the "optical and acceleration joint positioning pen mouse" of FIG. Flow chart of the calculation method.

6 is a schematic structural view of an embodiment of a pressure sensor including "optical and acceleration combined positioning pen mouse" according to FIGS. 4 and 5;

Figure 7 is a schematic structural view of another embodiment of a pressure sensor including "optical and acceleration combined positioning pen mouse" according to Figures 4 and 5;

8 is a schematic structural view of an embodiment of a pressure sensorless sensor in accordance with "optical and acceleration combined positioning pen mouse" of FIGS. 4 and 5;

9 is a schematic structural view of an embodiment of the "optical and acceleration combined positioning pen mouse" of FIG. 4 and FIG. 5 with a pressure sensor and the long axis of the image sensor being parallel to the long axis of the pen;

10 is a schematic structural view of an embodiment of a pressure sensor of the "optical and acceleration joint positioning finger-operated mouse" according to FIGS. 4 and 5;

11 is a schematic structural view of an embodiment of a "pressure-and-acceleration joint positioning finger-worn mouse" according to FIGS. 4 and 5;

Detailed ways:

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the above figures, 1, image sensor; 2, acceleration sensor; 3, pressure sensor or switch; 4, micro control and information transmission unit; 5, illumination source; 6, lens group and optical path; 7, power module; Working face; 9, mirror; 10, rotating shaft; 11, fixed kit.

Figure 4 is a block diagram of a preferred circuit of "optical and acceleration combined positioning mouse". In the figure, the image sensor detects the displacement of the image and outputs the optical displacement information to the micro control and information transmission unit. The acceleration sensor detects acceleration information in the X-axis and Y-axis directions, and outputs acceleration information to the micro-control and information transmission unit. Further, the acceleration sensor can also detect acceleration information in the Z-axis direction. At the same time, a pressure sensor or switch can be installed on the mouse to detect the contact pressure information between the mouse and the working surface, and output pressure information to the micro control and information transmission unit. Further, a button can be installed on the mouse for human-machine information exchange. The micro control and information transmission unit receives the contact pressure information, the optical displacement information, the acceleration information, the button information, and the like of the mouse and the working surface, and completes the judgment and calculation of the positioning according to the positioning flowchart of FIG. 5, and communicates with the computer. Further, the processing of the positioning information may be completed by the micro control and information transmission unit, or may be completed by a computer, or both.

Fig. 5 is a flow chart showing a preferred acceleration correction, positioning judgment and calculation method of the "optical and acceleration joint positioning pen mouse" of Fig. 4. In the figure, when the image sensor is well positioned, the displacement state of the X-axis and Y-axis directions detected by the image sensor is directly positioned; and the acceleration detected by the acceleration sensor is compared with the acceleration calculated by the image sensor detecting the displacement information. Calculate and obtain the 'corrected value' of the acceleration of the X and Y axes. When the image sensor is poorly positioned, according to the corrected actual acceleration of the corresponding period, the cumulative value of the corrected actual acceleration of each previous period, the cycle time, and the effective detection of the applied optical positioning before applying the acceleration sensor are effective. The displacement information can calculate the displacement of the X-axis and Y-axis corresponding to this cycle.

The following is a preferred acceleration used in accordance with the acceleration correction method described above, the displacement information detected by the image sensor, the acceleration information detected by the acceleration sensor, and the judgment information of whether the image sensor is positioned well or not. Correction and positioning calculation method.

Set - t cycle time (ie the period for positioning calculation and sending displacement data report). (Unit: second (S))

S, the sensitivity of the optical detection of the mouse, that is, the minimum displacement change that can be discerned when the mouse is optically positioned.

(Unit: mm/LLSB, LLSB is the minimum discriminable signal when optical positioning is used)

The sensitivity of the s _a acceleration sensor, the smallest amount of acceleration change that can be detected. (unit-

(mm/s^2) LSB, LSB is the minimum resolvable signal of the accelerometer)

a _x corresponds to the acceleration value detected by the periodic acceleration sensor. (Unit: LSB)

a _y corresponds to the acceleration value detected by the periodic acceleration sensor. (Unit: LSB)

The acceleration value after Ax correction, ^c= a _x + _a ^, when the subscript is incremented by the number, the subscript number indicates the number of the corresponding measurement period from the start of the application of the acceleration sensor positioning. (Unit: LSB)

Ay corrected acceleration value, = a _y + a^, when the subscript is incremented after it, the subscript number indicates the number of the corresponding measurement period from the start of the application of the acceleration sensor positioning. (Unit: LSB)

a _x , the acceleration correction value in the X-axis direction, that is, the difference between the acceleration value calculated by the optical positioning displacement information in the X-axis direction and the acceleration value detected by the acceleration sensor when the image sensor is well positioned (k=l). (unit:

LSB)

a _y , Y-axis direction acceleration correction value; that is, the difference between the acceleration value calculated by the optical positioning displacement information in the Y-axis direction and the acceleration value detected by the acceleration sensor when the image sensor is well positioned (k=l). (Unit: LSB) l _x X-axis displacement in the corresponding period. (Unit: LLSB)

l _{y The} amount of Y-axis displacement in the corresponding period. (Unit: LLSB)

l _x0 is usually the displacement on the Y-axis of the last effective optical positioning period, that is, the amount of displacement detected by the applied image sensor of the previous period when the acceleration sensor is used for positioning. Bit: LLSB)

Lyo is usually the amount of displacement on the Y-axis of the last effective optical positioning period, which is the amount of displacement detected by the applied image sensor of the previous period when the acceleration sensor was used for positioning. (Unit: LLSB)

k Image sensor positioning is good. (0 or 1, 0 is "No", 1 is "Yes")

∑?^(Axi) The cumulative change in acceleration in the X-axis direction from the 1st to the (n-1)th cycle of the acceleration sensor positioning, ∑H—O i) =Αχι +Ax ₂ +Ax ₃ .... .. +Ax _in . (Unit: LSB)

Σΐ^Αγί) . Acceleration cumulative change in the Y-axis direction from the 1st to the (n-1)th cycle of the acceleration sensor positioning,

2 + v3... + ν( _η -υ . (Unit: LSB)

r is a constant used to adjust the relationship between the displacement information and the acceleration information in the calculation; it can be based on the sensitivity of the optical detection of the mouse ( _S| ), the sensitivity of the acceleration sensor (s _a ), the cycle time (t), the detection error of the device Wait for adjustments. Set here: r (s _a /s,)*t^2 ; Usually, the r value is adjusted and set according to the above parameters during production.

Note: When positioning, the positioning of the mouse needs to be switched between applying different methods of image sensor positioning and applying optical sensor positioning. In the following calculation description, when the corresponding subscript is added as the serial number after the acceleration variable or the displacement variable (for example: 1, 2, 3 nl, n, etc.), the subscript value indicates the entry from The number of the corresponding period after the calculation and the judgment mode, and the variable with the period number corresponding thereto refer to the variable value of the corresponding period.

When k=l (that is, the image sensor is well positioned), the image sensor can be directly positioned and output the displacement of the X-axis and the Y-axis.

Calculation method of acceleration correction value:

Acceleration in the X-axis and Y-axis directions calculated using the displacement state detected by the image sensor (Alx, Aly unit: mm/s ^A 2):

Alx^C - l _x(n .l)) *S, / t ^A 2

Aly= ( lyn- l _y ( _n .i)) *s, / t ^A 2

The actual acceleration after the acceleration detected by the acceleration sensor (Aax, Aay; unit: mm/s ^A 2):

Aay= (ay„+ a _yA ) * s _a

When k=l (that is, the image sensor is well positioned), the acceleration values (Ak, Aly) calculated by the displacement information detected by the image sensor and the acceleration values detected by the acceleration sensor are corrected in the X-axis and Y-axis directions. The actual acceleration values (Aax, Aay) are equal, then:

Alx= Aax

Aly= Aay

Then there are:

( Ιχη- Ιχ(η-Ι)) *S| / t ^A 2= (a _xn + a _x J * S _a

( lyn- ly(nl)) *S| I t ^A 2= + a _y ) * S _a

From this, the corrected value of the acceleration (a^, a _y .) can be derived (unit: LSB)

Ιχη- Ιχ(η-Ι)) *(S| I s _a ) I t ^A 2—

3y =( lyn" ly(nl)) *(si /s _a ) I t ^A 2- Since rw (s _a /s,)n ^A 2, the correction value of acceleration (a^, a _ya ) (unit: LSB) is:

When k=0, the above acceleration correction value can be applied to calculate the actual acceleration value (^c„, Ay„) of the corresponding period (nth period) in the calculation and judgment mode (unit: LSB)

Calculation method using acceleration sensor positioning:

When k=0, according to the displacement amount of the last effective optical positioning period (l _x o), the accumulated cumulative change amount of acceleration from the 1st to the (n-1)th period of the acceleration sensor positioning (ΣίΙ^Ο^ί), -^Ayi) ), the corrected acceleration value (^„, Ay _n ) calculated in this week's period, and the cycle time (t), the displacement of the X-axis and Y-axis of the n-th cycle to which the acceleration sensor is applied can be calculated. Quantity (1^, ly„) (unit - LLSB) Lxn = Ιχο +∑ 0*( s _a /s,) * t ^Λ 2 + Αχ _η * ( k si) * t ^A 212

Lyn = lyo +∑p- ₁ ¹ (^ y 0* (s _a /s,) * t ^A 2 + y„*( s _a /s,) * t ^A 212

Since rw ( _Sa /s,)*t ^A 2, the displacement amount (l^ 1^) of the X-axis and Y-axis of the n-th cycle is:

Fig. 6 is a structural schematic view showing an embodiment of a pressure sensor including "optical and acceleration combined positioning pen mouse" according to Figs. 4 and 5. In the figure, the illumination source (5) and the image sensor (1) adopt an integrated structure, and the illumination source (5), the lens group and the optical path (6), the image sensor (1), and the acceleration sensor (2) are sequentially placed on the mouse. In the front part, the illumination source (5) illuminates the working surface (8), and the light reflected by the working surface (8) is imaged on the light sensing surface of the image sensor (1) via the lens group and the optical path (6), the image sensor (1) Detecting the displacement of the image, and outputting the optical displacement information to the micro control and information transmission unit (4); the pressure sensor on the mouse or the switch (3) uses the front end housing to conduct the contact pressure of the working surface with the mouse to detect the mouse Contact pressure with the working surface (8) and output pressure information to the micro control and information transmission unit (4). The acceleration sensor (2) mainly detects the acceleration changes in the X-axis and Y-axis directions parallel to the working surface (8), and outputs acceleration information to the micro-control and information transmission unit (4). Further, the acceleration sensor (2) can also detect the 3-dimensional acceleration of the pen-shaped mouse to better understand the movement trajectory of the mouse and perform more advanced functions such as virtual slamming confirmation in the air. The micro control and information transmission unit (4) and the power module (7) are located in the main housing of the middle and rear portions of the mouse; the micro control and information transmission unit (4) receives the contact pressure information and optical displacement of the mouse and the working surface (8). Information, acceleration information, and according to the positioning judgment and calculation process of Figure 5, complete the positioning, and communicate with the computer.

Figure 7 is a schematic structural view of another embodiment of a pressure sensor including "optical and acceleration combined positioning pen mouse" according to Figures 4 and 5; the basic structure is similar to the embodiment of Figure 7, except that The pressure sensor (3) is in contact with the working surface by means of an extension rod to facilitate the detection of the pressure of the mouse and the working surface.

Fig. 8 is a schematic view showing the structure of an embodiment of the "optical and acceleration combined positioning pen mouse" according to Figs. 4 and 5 without a pressure sensor. The image information of the image sharpness detected by the image sensor can be used to determine the positioning of the image sensor of the mouse.

Fig. 9 is a structural schematic view of an embodiment of the "optical and acceleration joint positioning pen mouse" of Fig. 4 and Fig. 5 with a pressure sensor and the long axis of the image sensor being parallel to the long axis of the pen. The long axis of the image sensor (1) is mounted in parallel with the long axis of the body of the pen case, and the optical path is adjusted by the mirror (9), and the pressure sensor (3) is placed at the forefront, which is characterized by a long application. The image sensor (1) still controls the volume of the mouse more effectively.

Fig. 10 is a block diagram showing an embodiment of a pressure sensor of the "optical and acceleration joint positioning finger-operated mouse" according to Figs. 4 and 5. The pressure sensor (3) is located at the front end of the finger-worn mouse, which facilitates sensing the pressure of the mouse in contact with the work surface, and is provided with a clip-shaped fixing kit (11).

Figure 11 is a block diagram showing an embodiment of a "pressure-and-acceleration joint positioning finger-worn mouse" according to Figures 4 and 5 without a pressure sensor. The advantage is that the pressure sensor's wrapping of the finger is reduced, and the finger is used to tap the keyboard and the like. In addition, the embodiment can also be fixed to the pen holder by using a fixing kit to perform a corresponding writing operation. Further, a pressure sensor can be mounted on the pen to facilitate better writing and drawing operations.

The features and effects of the present invention are: a mouse-shaped pen or a finger-worn mouse with a fixed set, and an image placed on the mouse Sensors, accelerometers, etc., using different operating characteristics of image sensors and accelerometers, applying corresponding positioning judgments and calculation methods when the mouse is in different working states, so that the mouse can perform the entire process of conventional positioning, writing and drawing. Accurate positioning.

The acceleration sensor described in the present invention is not limited to a narrowly defined accelerometer, and includes an accelerometer, a gyroscope, and the like which can be used for acceleration of an object motion, and an acceleration sensor which is also a combination thereof. The pressure sensors described above may include various types of devices or devices that detect and determine whether to contact the tabletop and/or contact pressure. The present invention is not limited to the embodiments described above, and it will be understood by those skilled in the art that changes and modifications can be made thereto without departing from the scope and scope of the invention as defined by the appended claims. .

Claims

A request for a book, a mouse device with a pen shape or a mouse device with a finger fixing kit, and an acceleration correction method and a positioning calculation method thereof, including an optical sensor, an acceleration sensor', a micro control and a transmission unit, and the like.

The mouse of claim 1, wherein the optical sensor detects the displacement of the pen mouse relative to the working surface to output an optical displacement information.

The mouse of claim 1, wherein the acceleration sensor is configured to detect an acceleration of the mouse and output an acceleration information accordingly.

The mouse according to claim 1, 2, 3, wherein the micro control and transmission unit is configured to receive optical displacement information; the micro control unit further receives acceleration information; and the micro control and transmission unit is based on optical displacement information, acceleration information, etc. The relative displacement of the mouse and the working surface is calculated by the corresponding judgment and calculation method, and the signal is output to the computer. .

The method for determining and calculating according to claim 4, wherein when the image sensor is well positioned, the micro control and transmission unit uses the displacement information detected by the image sensor for positioning, and outputs displacement information; and uses the displacement detected by the image sensor. The information calculates the actual acceleration of the mouse, and compares the acceleration detected by the acceleration sensor with the actual acceleration calculated by the image sensor to obtain a correction value of the acceleration.

The method of determining and calculating according to claim 4, wherein when the image sensor is poorly positioned, the micro control and transmission unit corrects the acceleration detected by the acceleration sensor according to the correction value of the acceleration according to claim 5, according to the correction The acceleration, the displacement information detected when the image sensor is well positioned, the cycle time are calculated and positioned, and the displacement is output.