CN1700158A - Optical mouse detecting system - Google Patents
Optical mouse detecting system Download PDFInfo
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- CN1700158A CN1700158A CNA2004100702320A CN200410070232A CN1700158A CN 1700158 A CN1700158 A CN 1700158A CN A2004100702320 A CNA2004100702320 A CN A2004100702320A CN 200410070232 A CN200410070232 A CN 200410070232A CN 1700158 A CN1700158 A CN 1700158A
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- body surface
- optical mouse
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Abstract
The invention provides an optical mouse detecting system, which mainly includes a laser diode, and a sensing system, wherein the sensing system includes a sensing assembly and an analysis circuit system; the laser interference image reflected by the object surface which is irradiated by laser by being detected by the sensing assembly of the sensing system, and relative moving direction and distance between the optical mouse detecting system and the object surface can be judged by the analysis circuit. The optical mouse detecting system provided by the invention can evidently reduce power consumption of the mouse and improve analysis function for optical mouse detecting because using the laser diode as light source.
Description
Technical field
The relevant a kind of optical mouse detecting system of the present invention, especially relevant a kind of optical mouse detecting system that uses laser diode as the light emitted device.
Background technology
The known system that is used for the optical mouse detecting displacement mainly comprises a light emitting diode, a guiding device, an imaging len and a sensing system, as shown in Figure 1.System's 1 main principle of work of this optical mouse detecting displacement is to utilize light emitting diode 2 emission light beam I
1, this light beam I
1 Project body surface 6 via guiding device 3 and produce the image that light and shade changes, this surface image is again by folded light beam I
2Focus on and image on the sensing component of sensing system 5 by imaging len 4, analysis circuit system on the sensing system is analysed and compared according to the image of the optical mouse that is captured before and after moving, and calculates optical mouse respectively in the moving direction and the distance of X and Y-axis.
Yet the employed light emitting source of the known optical mouse detecting system of this kind is a light emitting diode, and its power consumption is bigger, and required electric current is about 30 to 50 milliamperes under the continuous action, accounts for about 1/3rd to 1/2nd of optical mouse total power consumption.
In addition, because known optical mouse is to use light emitting diode as light emitting source, the light that this light emitting diode sent is visible light, and most at present red light-emitting diode that uses, when body surface that the ruddiness that sends shone during for dark-coloured or red complementary colors, to greatly reduce from the luminosity that this body surface reflected, thereby the sensing of optical mouse and interpretation ability general thereby decline, the working current that maybe must increase light emitting diode is to increase luminosity, and the result will cause power consumption to heighten.
Moreover, because the light that light emitting diode is launched belongs to scattered light, lighting angle is big, there is no good directivity, when therefore exposing to body surface, must light beam be guided to the appropriate location of body surface with suitable angle via a guiding device, radiation source just can provide the light source of enough brightness for the detector detecting in this way.Therefore the use of guiding device will increase the assembling of optical mouse and make degree of difficulty and cost.
In view of the above problems, the inventor carries out broad research to structure and each member of optical mouse, thereby finishes the present invention.
Summary of the invention
First purpose of the present invention provides a kind of optical mouse detecting system that utilizes laser diode as light emitting source, and its structure mainly comprises a laser diode, in order to launch laser light illumination to body surface; An and sensing system, it comprises a sensing component and an analysis circuit system again, this sensing system is in order to the laser light interference image that is received from the reflection of this body surface and convert electric signal to, and this analysis circuit system of mat carries out the image compare of analysis, and judge mouse moving direction relative and distance with body surface, and and then vectoring computer on cursor move.
Detecting system according to optical mouse of the present invention, be to send the laser light illumination body surface by laser diode, reflect formed laser interference image and reflex to this sensing system by body surface, move the different images that is captured from each time of mouse, is electric signal by the sensing component in the sensing system with image transitions, and the analysis circuit system in this sensing system of mat carries out the image compare of analysis, and judge the relatively move direction and the distance of mouse and body surface, and and then according to gained data output electric signal the cursor on the vectoring computer display moves.
This used sensing component can utilize complementary metal oxide semiconductor (CMOS) (Complementary Metal-Oxide Semiconductor in the optical mouse detecting system of the present invention, CMOS), (Charge Coupling Device CCD) carries out sensing for photistor (Photo-Transistor) or Charged Coupled Device.Above-mentioned these three kinds of sensing components are to know the semiconductor applications person knows the general sensing component of knowing, therefore should need not to be given unnecessary details in instructions of the present invention again.
Used laser diode especially can be wall emission laser (VCSEL, Vertical Cavity Surface-Emitting Laser) in the optical mouse detecting system of the present invention, and to make required electric power of time spent lower relatively because of it, and help reducing power consumption.
Among the present invention, used " the relatively move direction and the distance of mouse and body surface " speech, not only comprise object and fix and measured relatively move direction and the distance of rolling mouse detecting system, comprise also that the mouse detecting system is fixed but measured relatively move direction and the distance in mobile object surface.
According to optical mouse detecting system of the present invention, not only can be applicable to portable mouse detecting system (being that object is fixed and the rolling mouse detecting system), for example also can be applicable to be located at the induction installation on the detecting system of the present invention and to carry out this relatively move direction and Determination of distance (being that the mouse detecting system is fixed but the mobile object surface) by moving one.In the latter's example, except that can be applicable to mobile computer, still can be applicable to used portable optical mouse at present, but on this movable type mouse, install this induction installation, the user only moves this induction installation can carry out this detecting, and non-moving whole mouse detecting system.These induction installations can be for example touch panel, slider or sliding ball.
First advantage of optical mouse detecting system of the present invention is, used laser diode is because power consumption is quite low, especially when using the wall emission laser, institute's consumed current is only 4 to 6 milliamperes under continuous action, be about about 1/10th of light emitting diode, can greatly reduce the power consumption of optical mouse, and when being used in wireless mouse, can make stand-by time elongated.
Second advantage of optical mouse detecting system of the present invention is, the light that laser diode is sent can be infrared light sources (non-visible light), when exposing to versicolor body surface, because ultrared reflection power is not influenced by color, therefore applicable to the body surface of various different colours, and increase detecting sensitivity.
The 3rd advantage of optical mouse detecting system of the present invention is, the light source that laser diode is sent is concentration of energy and the little laser light of dispersion angle, so when applying to the detecting system of optical mouse, can not need utilize guiding device, can be with directly irradiating object surface and reflection equably of light source, and because the reflection of light beam is also with the little source reflection of dispersion angle, even so imaging len is not set, the intensity of this reflection source also is enough to the analysis circuit system is analyzed, according to and calculate relative movement distance and the direction of mouse in X and Y-axis, and move according to the cursor on institute's output data vectoring computer display.
The 4th advantage of optical mouse detecting system of the present invention is, the present invention utilizes laser light illumination at body surface also after reflection, can on sensing system, form the spot image of interfering, because laser light interferes formed spot tiny and clear, light and shade is differentiated easily, can dwindle the area of indivedual picture elements that sensing system can detect and increases resolution to the body surface detecting.
As mentioned above, though among the present invention owing to utilize laser diode as light emitting source, can need not use lens, but, can further strengthen detecting function if set up this lens.Therefore, second purpose of the present invention provides a kind of optical mouse detecting system, and its structure mainly comprises a laser diode, in order to launch laser light illumination to body surface; One lens are used so that the laser light that reflects from body surface focuses on and be sent to sensing system; An and sensing system, it comprises a sensing component and an analysis circuit system again, this sensing system is in order to the light image that is received from the reflection of this body surface and convert electric signal to, and this analysis circuit system of mat carries out the image compare of analysis, and judge direction and the distance that mouse and body surface relatively move, and and then vectoring computer on cursor move.
According to the detecting system of the optical mouse of the present invention's second purpose, wherein these lens can be imaging len and also can be spreadlight lens (polarizer lens).
Description of drawings
Fig. 1 is the general view of optical mouse structure of prior art;
The general view of detecting system first concrete example of Fig. 2 optical mouse of the present invention; And
The general view of detecting system second concrete example of Fig. 3 optical mouse of the present invention.
Figure number wherein
1 detecting system, 2 light emitting diodes
3 guiding devices, 4 imaging lens
5 sensing systems, 6 body surfaces
7 sensing systems, 8 laser diode
9 sensing components, 10 analysis circuit systems
11 body surfaces, 14 detecting systems
I
1, I
2, I
3, I
4Light beam
Embodiment
The present invention will be with the following example more detailed description formation of the present invention and advantage.Same parts used during each is graphic is used same reference numbers.
At first see also Fig. 2, Fig. 2 is the general view of detecting system first concrete example of optical mouse of the present invention.As shown in Figure 2, the detecting system 14 of optical mouse of the present invention comprises a laser diode 8 and a sensing system 7, and this sensing system 7 is made of sensing component 9 and analysis circuit 10.This laser diode 8 can be arranged at this sensing component 9 homonymies.The laser beam I that launches from laser diode 8
3, shine directly into body surface 11, produce folded light beam I
4Detected with the sensed assembly 9 of laser light interference image, and be electric signal with this image transitions via this sensing component 9, again by this analysis circuit 10 compare of analysis in addition, can obtain the relative X that moves of detecting system of the present invention and the direction and the distance of Y-axis, and move according to the cursor on the suitable control computer display of gained data output electric signal with each time of body surface.
According to the detecting system of optical mouse shown in Figure 2, wherein this sensing component 9 can utilize complementary metal oxide semiconductor (CMOS) (CMOS), photistor or Charged Coupled Device (CCD) to carry out sensing.
Then, see also Fig. 3, Fig. 3 is the general view of detecting system second concrete example of optical mouse of the present invention.As shown in Figure 3, the detecting system 14 of optical mouse of the present invention comprises a laser diode 8, a sensing system 7 and an imaging len 12, and this sensing system is made of sensing component 9 and analysis circuit 10.This laser diode 8 is provided with the mode that this sensing component 9 can be an angle mutually.The laser beam I that launches from laser diode 8
3, shine directly into body surface 11, produce folded light beam I
4Focus on via imaging len 12 with the laser light interference image, be projected on the sensing component 9, and be electric signal with this image transitions via this sensing component 9, again by this analysis circuit 10 compare of analysis in addition, can obtain the relative X that moves of detecting system of the present invention and the direction and the distance of Y-axis, and move according to the cursor on the suitable control computer display of gained data output electric signal with each time of body surface.
Similarly, according to the detecting system 14 of optical mouse shown in Figure 3, wherein this sensing component 9 can utilize complementary metal oxide semiconductor (CMOS) (CMOS), photistor or Charged Coupled Device (CCD) to carry out sensing.
According to the detecting system of optical mouse shown in Figure 3, wherein this imaging len can also replace by spreadlight lens (polarizer lens), and can obtain more clear tangible image.
According to optical mouse detecting system of the present invention, owing to be to utilize laser diode, but have therefore that interference, the consumption rate of exposure color of object surface not is low, detecting is highly sensitive and saving member such as makes manufacturing easier at advantage as light emitting source.
Claims (12)
1. optical mouse detecting system, its structure mainly comprises:
One laser diode is in order to launch laser light illumination to body surface; And
One sensing system, it comprises a sensing component and an analysis circuit system again, this sensing component is in order to the laser light image that is received from the reflection of this body surface and convert electric signal to, and this analysis circuit system of mat carries out the image compare of analysis, and judge direction and the distance that detecting system and body surface relatively move, and and then vectoring computer on cursor move.
2. detecting system as claimed in claim 1, wherein this laser diode is the wall emission laser.
3. detecting system as claimed in claim 1, wherein the sensing component in this sensing system be complementary metal oxide semiconductor (CMOS) (Complementary Metal-Oxide Semiconductor, CMOS).
4. detecting system as claimed in claim 1, wherein the sensing component in this sensing system is photistor (Photo-Transistor).
5. detecting system as claimed in claim 1, wherein the sensing component in this sensing system be Charged Coupled Device (Charge Coupling Device, CCD).
6. optical mouse detecting system, its structure mainly comprises:
One laser diode is in order to launch laser light illumination to body surface;
One lens are used so that the laser light that reflects from body surface focuses on and be sent to sensing system; And
One sensing system, it comprises a sensing component and an analysis circuit system again, this sensing component is in order to the light image that is received from the reflection of this body surface and convert electric signal to, and this analysis circuit system of mat carries out the image compare of analysis, and judge direction and the distance that detecting system and body surface relatively move, and and then vectoring computer on cursor move.
7. detecting system as claimed in claim 6, wherein this laser diode is the wall emission laser.
8. detecting system as claimed in claim 6, wherein these lens are an imaging len.
9. detecting system as claimed in claim 6, wherein these lens are a spreadlight lens.
10. detecting system as claimed in claim 6, wherein the sensing component in this sensing system be complementary metal oxide semiconductor (CMOS) (Complementary Metal-Oxide Semiconductor, CMOS).
11. detecting system as claimed in claim 6, wherein the sensing component in this sensing system is photistor (Photo-Transistor).
12. detecting system as claimed in claim 6, wherein the sensing component in this sensing system be Charged Coupled Device (Charge Coupling Device, CCD).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100702320A CN1700158A (en) | 2004-05-21 | 2004-07-30 | Optical mouse detecting system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410042471 | 2004-05-21 | ||
| CN200410042471.5 | 2004-05-21 | ||
| CNA2004100702320A CN1700158A (en) | 2004-05-21 | 2004-07-30 | Optical mouse detecting system |
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|---|---|
| CN1700158A true CN1700158A (en) | 2005-11-23 |
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|---|---|---|---|
| CNA2004100702320A Pending CN1700158A (en) | 2004-05-21 | 2004-07-30 | Optical mouse detecting system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980074A (en) * | 2010-10-12 | 2011-02-23 | 黄锐敏 | Method for applying polarized lens between lens and optical coupler |
| CN101452348B (en) * | 2007-11-30 | 2011-06-15 | 凌阳多媒体股份有限公司 | Coordinate setting mouse with float locate function |
| CN107490370A (en) * | 2016-06-13 | 2017-12-19 | 原相科技股份有限公司 | Measurement apparatus and its operation method, track sensing system and its track method for sensing |
| US10816321B2 (en) | 2016-06-01 | 2020-10-27 | Pixart Imaging Inc. | Measurement device and operation method thereof |
| CN113900879A (en) * | 2020-06-22 | 2022-01-07 | 宏碁股份有限公司 | Mouse abnormal behavior detection system and mouse abnormal behavior detection method |
| US20230241511A1 (en) * | 2022-02-02 | 2023-08-03 | Nvidia Corporation | Submovement-based mouse input cheating detection |
-
2004
- 2004-07-30 CN CNA2004100702320A patent/CN1700158A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452348B (en) * | 2007-11-30 | 2011-06-15 | 凌阳多媒体股份有限公司 | Coordinate setting mouse with float locate function |
| CN101980074A (en) * | 2010-10-12 | 2011-02-23 | 黄锐敏 | Method for applying polarized lens between lens and optical coupler |
| US10816321B2 (en) | 2016-06-01 | 2020-10-27 | Pixart Imaging Inc. | Measurement device and operation method thereof |
| CN107490370A (en) * | 2016-06-13 | 2017-12-19 | 原相科技股份有限公司 | Measurement apparatus and its operation method, track sensing system and its track method for sensing |
| CN107490370B (en) * | 2016-06-13 | 2020-01-10 | 原相科技股份有限公司 | Measuring device and operation method thereof, track sensing system and track sensing method thereof |
| CN113900879A (en) * | 2020-06-22 | 2022-01-07 | 宏碁股份有限公司 | Mouse abnormal behavior detection system and mouse abnormal behavior detection method |
| CN113900879B (en) * | 2020-06-22 | 2023-05-23 | 宏碁股份有限公司 | Mouse abnormal behavior detection system and mouse abnormal behavior detection method |
| US20230241511A1 (en) * | 2022-02-02 | 2023-08-03 | Nvidia Corporation | Submovement-based mouse input cheating detection |
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