TWI311719B - Mouse and displacement compensation method thereof - Google Patents

Description

• i3i lm: TW2948PA “, IX. Description of the Invention: [Technical Field] The present invention relates to a mouse device, and more particularly to a mouse device having an acceleration gauge. [Prior Art] Computer has become a modern The electronic product is indispensable in people's life, and the mouse is the necessary hardware input interface for operating the computer. Currently in the market, _ optical mouse is easy to clean, not easy to wear and the accuracy does not decrease with the increase of use time. In order to replace the early roller type mouse, the optical mouse is used to sense the actual displacement of the user applied to the optical mouse via an optical sensor (Opt i ca 1 Sensor) to correspondingly change. Cursor position on the screen. However, when the material of the desktop is not conducive to light reflection, it will affect the sensing action of the optical sensor, so that the cursor on the display screen cannot be accurately positioned at the intended target position. In view of this, the object of the present invention is to provide a mouse and a displacement compensation method thereof, and the mouse of the present invention can effectively solve The above conventional mouse cannot properly operate on some desktops that are not conducive to light reflection. According to the purpose of the present invention, a mouse is proposed, which includes an optical sensor (Opt i ca 1 Sensor), acceleration sensing Micro Control Uniΐ. Optical sensor is used to detect the position of the mouse 6

: TW2948PA, shift amount ' to output optical displacement. The acceleration sensor is used to detect the acceleration of the mouse and output an acceleration signal accordingly. The micro control unit is configured to receive the acceleration signal ′ and obtain the acceleration sensing displacement amount; the micro control unit further receives the optical displacement amount to compare the acceleration sensing displacement amount and the optical displacement amount to output the mouse displacement signal. According to another object of the present invention, a method for compensating for displacement of a mouse is proposed. This compensation method is applied to the mouse. This compensation method includes the following steps. First, the optical displacement amount and the acceleration sensing displacement amount are provided, and the optical displacement amount and the acceleration sensing displacement amount in Φ respectively include a plurality of optical displacement components and a plurality of acceleration sensing displacement components. Next, it is determined whether the plurality of optical displacement components are substantially equal to the corresponding plurality of acceleration sensing displacement components, respectively. Then, when the plurality of optical displacement components and the corresponding plurality of acceleration sensing displacement components are not equal, determining a direction of one of the plurality of optical displacement components, and corresponding one of the acceleration sensing displacements Whether the direction of the components is substantially the same. Then, when the direction of the optical displacement component and the acceleration sensing displacement component are substantially the same, it is determined whether the optical displacement component is greater than the acceleration sensing displacement component and then 'when the optical displacement component is not greater than the acceleration sensing When the displacement component is used, the displacement component is used as the mouse displacement component signal of the mouse displacement signal, and after the first desktop detection result is obtained, the mouse displacement signal is outputted and the first desktop detection result is output. The above described objects, features, and advantages of the present invention will become more apparent and understood.

: TW2948PA ‘, [Embodiment] The mouse of the present invention includes an acceleration sensor to sense the acceleration of the mouse and convert the acceleration to an acceleration sensing displacement amount. The mouse of the present invention compares the acceleration sensing displacement amount with the optical displacement amount sensed by the optical sensor, and uses one of the acceleration sensing displacement amount and the optical sensing displacement amount as the preferred sensing displacement amount as the sliding. The amount of displacement of the mouse allows the mouse to operate normally on different desktop materials. Referring to Figure 1, there is shown a block diagram of a mouse circuit in accordance with an embodiment of the present invention. The mouse 102 is coupled to an electronic device 104, which in the present embodiment is, for example, a computer. The mouse 102 includes an acceleration sensor 106, a Micro Control Unit 108, and an optical sensor 110. The optical sensor 110 is coupled to the micro control unit 108 and configured to detect the displacement of the mouse 102 to output an optical displacement amount SOD. The optical displacement amount SOD includes a longitudinal optical displacement component and a lateral optical displacement component, which are the longitudinal and lateral displacement amounts of the mouse 102 detected by the optical sensor 110, respectively. The φ acceleration sensor 106 is, for example, an acceleration gauge (G Sensor), and the acceleration sensor 106 includes a lateral acceleration sensing unit 106a and a longitudinal acceleration sensing unit 106b. The lateral and longitudinal acceleration sensing units 106a and 106b are coupled to the micro control unit 108, respectively. The lateral and longitudinal acceleration sensing units 106a and 106b are respectively configured to sense the lateral acceleration and the longitudinal acceleration of the mouse 102, and respectively obtain the lateral acceleration component SAx and the longitudinal acceleration component SAy according to the sensed lateral and longitudinal accelerations. Wherein, the horizontal and vertical directions of the mouse 102 are generally used, the mouse 102 8

I3i a : TW2948PA shift component and transverse optical position jiang 八 θ can fully reflect light; it means that mouse (10) operation accurately senses lateral optical displacement ^ (4), and optical sensing ^U0 is measurable; micro control unit t The transverse displacement of the reaction mouse 1G2, and the transverse optical displacement component are preferably the lateral position of the rimeter = the preferred loose displacement is used as the lateral mouse displacement signal. Field t, the sense of displacement component and the lateral optical displacement sub-unit m-step to determine the lateral acceleration sensing:

Whether the direction of the tr displacement component is the same. When the lateral acceleration sensing displacement is divided into 4 directions toward the direction of the optical displacement component, the mouse 102 is operated on the desktop of the material which is not conducive to light reflection: the learning sensor 110 cannot be employed on the desktop at this time. The optical displacement component is used to reflect the lateral displacement of π mouse 1G2; the micro control unit (10) senses the lateral displacement of the (four) component with lateral acceleration, and the preferred displacement amount is used as the lateral mouse displacement signal. ”

When the k-direction acceleration sensing displacement component is in the same direction as the lateral optical displacement component, the micro control unit 108 further determines whether the lateral optical displacement component is greater than the lateral acceleration sensing displacement component. When the lateral optical displacement component is greater than the lateral acceleration sensing displacement component, it means that the mouse 102 is operated on a tabletop of a material that can sufficiently reflect light, and the optical sensor 11〇 can accurately sense the lateral optical displacement component to react to the sliding. The amount of lateral displacement of the rat 102. However, the micro control unit 108 may not be able to effectively convert the accurate lateral displacement component according to the lateral acceleration sensed by the lateral acceleration sensing unit 106a due to the lateral movement of the mouse 102 approaching the constant velocity motion; the micro control unit 108 Transverse optical displacement component is the preferred lateral position

:TW2948PA Private, and use this better lateral displacement as a lateral mouse displacement signal. When the lateral optical displacement component is smaller than the lateral acceleration sensing displacement component, it is indicated that the mouse 102 is operated on a desktop that is not conducive to light reflection, and the optical sensor 110 cannot sense the lateral optical on the desktop at this time. The displacement component reflects the lateral displacement of the mouse 102; at this time, the micro control unit 108 senses the displacement component with the lateral acceleration as the preferred lateral displacement, and the preferred lateral displacement is used as the lateral mouse displacement signal. Although the embodiment is only based on the lateral optical displacement of the micro control unit 1〇8

The operation of the horizontal and lateral acceleration ❹丨 displacement components to generate the lateral mouse displacement signal is (4) (4), the slit (four) unit (10) (4) longitudinal optical displacement component and the longitudinal acceleration sensing displacement component to generate the longitudinal mouse displacement signal can be analogized. In the second month, according to Fig. 2, the description is a flow chart of the displacement compensation method of the micro control unit (10) of the i-th diagram. In the figure 帛2, the micro-control unit (10) is used as an example to explain the displacement compensation method based on the lateral acceleration sensing displacement component and the lateral optical displacement component to the lateral mouse displacement signal.

In the first step, as in step 202, the lateral displacement of the slider 1 2 is sensed to provide a lateral optical displacement component and a lateral acceleration sensing displacement component. The horizontal optical displacement component of the step m' ride is (4) as a lateral motion transmission if the lateral addition is the 'execution step, the displacement component is sensed by the lateral optical displacement knife and the k-direction acceleration. Return, execute (4), (4) lateral mouse displacement pair, and the county of this implementation displacement compensation method (4) 204, ^ woman said, (four) (four) points = 11

« i3i ms : TW2948PA The lateral acceleration sensing displacement component has the same direction. If not, step 212 is performed, and the lateral acceleration sensing displacement component is used as the lateral mouse displacement signal, and then step 208 is performed; if yes, step 214 is performed. Determining whether the displacement amount of the lateral optical displacement component is greater than the displacement amount of the lateral acceleration sensing displacement component, if not, performing step 212, and then performing step 208; if 'execution step 216', using the lateral optical displacement component as the lateral mouse displacement signal . Next, step 208 is performed. In this embodiment, the displacement compensation method of the lateral mouse displacement signal is obtained by taking the displacement component and the lateral optical displacement component by the micro control unit 108 according to the lateral acceleration as an example. However, the longitudinal displacement compensation method can be based on the lateral direction. The displacement compensation method is similar. Next, the micro control unit 108 generates a mouse displacement signal SMD based on the obtained lateral and longitudinal mouse displacement signals, and inputs the mouse displacement signal SMD to the computer. Thus, the computer can move the cursor on the screen according to the mouse displacement signal SMD generated by the preferred lateral and longitudinal mouse displacement signals, so that the cursor can be accurately positioned at the intended target position. In the housing of the mouse 102 of the present embodiment, for example, a Light Emitting Diode (LED) device is further provided to remind the user to replace the mouse 102 when the mouse 102 operates on a desktop material that is not conducive to light reflection. Operate the desktop. The mouse 102 of the present embodiment can also remind the user through the display of the computer that the mouse 10 2 operates on the desktop whose material is not conducive to light reflection, so as to replace the operating desktop of the mouse 102. The mouse 102 of the embodiment further includes a button controller 112 coupled to the microcontroller 108 for controlling the left button (not shown), the right button (not shown) and the wheel button of the mouse 102 (not 12

-13113⁄43⁄4 : TW2948PA is shown). The mouse system of this embodiment has an accelerometer and an optical sensor to sense and output the acceleration and optical displacement of the mouse, respectively. The mouse of the embodiment converts the acceleration into an acceleration sensing displacement amount, and compares the acceleration sensing displacement amount and the optical sensing displacement amount to determine whether the mouse operates on a desktop with poor desktop quality; the mouse of the embodiment When the quality of the desktop is poor, the displacement is measured by the acceleration as the displacement signal output of the mouse. Thus, the mouse system of the present embodiment can effectively improve the disadvantage that the traditional mouse can not operate on some desktops that are not conducive to light reflection, and has a desktop that can be operated on a material that is not conducive to light reflection, and has a desktop quality that can be detected. The advantages. In view of the above, the present invention has been disclosed in a preferred embodiment, and is not intended to limit the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

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I31La: TW2948PA '[A Brief Description of the Drawings] Fig. 1 is a circuit block diagram of a mouse in accordance with an embodiment of the present invention. Fig. 2 is a flow chart showing the method of compensating the displacement amount of the micro control unit 108 of Fig. 1. [Main component symbol description] 102 Mouse 104 Electronic device 106 Acceleration sensor 106a: Lateral acceleration sensing unit 106b: Longitudinal acceleration sensing unit 108: Micro control unit 110: Optical sensor 112: Button controller SAx: Horizontal Acceleration component SAy: longitudinal acceleration component SOD: optical displacement amount SMD: mouse displacement signal 202~216 ··operation step 14

Claims (1)

• 1311 pass: TW2948PA X. Patent application scope: 1. A mouse, comprising: an optical sensor for detecting the displacement of the mouse to output an optical displacement; a detector for detecting the acceleration of the slipper and outputting an acceleration signal; and a Micro Control Unit for receiving the acceleration signal and obtaining an acceleration sensing displacement amount, The micro control unit g element further receives the optical displacement amount to compare the acceleration sensing displacement amount and the optical displacement amount, and output a mouse displacement signal. 2. The mouse of claim 1, wherein the optical displacement comprises a longitudinal optical displacement component and a transverse optical displacement component; the acceleration sensing displacement comprises a longitudinal _ acceleration sensing The displacement component and a lateral acceleration sense the displacement component; the mouse displacement signal includes a longitudinal mouse displacement component signal and a lateral mouse displacement component signal. 3. The mouse of claim 2, wherein the micro-control φ unit compares the longitudinal optical displacement component and the longitudinal acceleration sensing displacement component to output the longitudinal mouse displacement component signal; The control unit compares the lateral optical displacement component and the lateral acceleration sensing displacement component to output the lateral mouse displacement component signal. 4. The mouse of claim 1, wherein the micro control unit obtains the acceleration sensing displacement amount according to the acceleration signal via a lookup table. 5. For the mouse described in the first paragraph of the patent application, where the acceleration is 15 • 131 faces • ' TW 2948 PA * The sense of sensing is Y - is the acceleration gauge (G Sensor). 6. A method for compensating a displacement amount of a mouse, the compensation method being applied to a mouse, the compensation method comprising: (a) knowing: providing an optical displacement and an acceleration sensing displacement, wherein the optical displacement and The acceleration sensing displacement amount respectively includes a plurality of optical displacement components and a plurality of acceleration sensing displacement components; (b) determining whether each of the optical displacement components is substantially equal to each of the corresponding acceleration sensing displacement components, • (c) determining a direction of one of the optical displacement components and corresponding one of the optical displacement components when each of the optical displacement components and the corresponding one of the acceleration sensing displacement components are unequal Whether the direction of the displacement component is substantially the same; (d) determining whether the optical displacement component is greater than the acceleration sensing displacement component when the optical displacement component of the edge is substantially identical to the direction of the acceleration sensing displacement component; When the optical displacement component is not greater than the acceleration sensing displacement component ', the displacement component is sensed by the acceleration as the mouse displacement signal A '= displacement of the split signal perform, and to obtain a first - Desktop detection result; and outputting the slip ⑴ gas displacement signal, and outputs the first desktop monovalent measured results. 7. The displacement amount compensation method according to claim 6, wherein after the step (b), the method further comprises: (c') when each of the optical displacement components and the corresponding acceleration sounds The sensed displacement component is substantially a phase, with the optical displacement ς 16 * 1311 ^ 1 | 8 ^ . τ . - TW2943PA / month 呔 displacement signal, and a second desktop detection result; and (ί) output The mouse shifts the signal and rotates the second desktop detection δ. The displacement amount compensation method described in claim 6 of the patent application, wherein after the step (c), the method further includes: , / (d,) When the optical displacement component is different from the direction of the acceleration sensing displacement component, the acceleration sensing displacement component is used as the mouse displacement component signal, and the first desktop detection result is obtained; and (1) outputting the sliding The mouse shifts the signal and outputs the first-desktop detection node. 9. The displacement amount compensation method according to claim 6, wherein after the step (d), the method further comprises: ± (e) when the optical displacement component Greater than the acceleration sensing displacement component two to four The optical displacement component acts as an m-displacement component signal and obtains the second desktop detection result; and «') outputs the mouse displacement signal and outputs the second desktop detection result. 10. The displacement amount compensation method according to claim 6, wherein the optical displacement component comprises a longitudinal optical displacement component and a radial optical displacement component, and the acceleration sensing displacement component comprises a The longitudinal acceleration senses the displacement component and a lateral acceleration senses the displacement component. 17