CN102221913A - Track ball device as well as implementation method and system thereof - Google Patents
Track ball device as well as implementation method and system thereof Download PDFInfo
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- CN102221913A CN102221913A CN2011101866652A CN201110186665A CN102221913A CN 102221913 A CN102221913 A CN 102221913A CN 2011101866652 A CN2011101866652 A CN 2011101866652A CN 201110186665 A CN201110186665 A CN 201110186665A CN 102221913 A CN102221913 A CN 102221913A
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- 230000005540 biological transmission Effects 0.000 claims description 40
- 238000006073 displacement reaction Methods 0.000 claims description 18
- 230000005622 photoelectricity Effects 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229960001866 silicon dioxide Drugs 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Abstract
The invention discloses a track ball device as well as an implementation method and system thereof. The method comprises the following steps: obliquely arranging a circuit board obliquely in a lateral position below the center of sphere of a track ball body so as to ensure that the center of sphere of the track ball body is positioned on the normal plane of the bottom of a light guide lens; and causing the bottom of the light guide lens for a laser or photoelectric emitting/receiving chip on the circuit board to face the surface of the track ball body and obliquely arranging the bottom of the light guide lens relative to the bottom plane of the track ball body. In the method, the circuit board is obliquely arranged at the side face of the track ball body, thus the defect that the laser or photoelectric track ball device is thicker than the mechanical-drive-type track ball device is overcome, thereby avoiding restricted application field and limited improvement scope caused by volume increasing. In addition, as long as the FIRMWARE procedure of the microchip of the laser or photoelectric emitting/receiving chip is slightly modified, a feasible solution for achieving a completely water-proof track ball device can be obtained, thus meeting the requirements of explosion-proof and anti-detachment in a public place with lower cost.
Description
Technical field
The present invention relates to the optical tracking ball equipment and the system of the realization field thereof of public arena use, in particular, what improvement related to is a kind of Trackball device and its implementation and system.
Background technology
Existing optical tracking ball equipment such as laser trace ball device or photoelectronic trace ball device, the transmission/receiving chip of its laser or photoelectricity all lies in the bottom of Trackball device.As shown in Figure 1a, when light guiding lens bottom surface 101 be horizontally set on trace ball body 100 under the time, its X to Y to speed be identical, microchip in the transmission/receiving chip calculate the moving direction of X-axis and y-axis shift and apart from the time, because the movement velocity unanimity of X-Y direction, do not need to carry out any adjusting or correction, its proportionate relationship can be expressed as X:Y=D:D=1, and wherein D is the diameter of trace ball body 100.
Another program can be 90 ° at trace ball body 100 sides and respectively place a photoelectricity (or laser) transmission/receiving chip 101, shown in Fig. 1 b, discern respectively X to Y to motion, its proportionate relationship also can be X:Y=D:D=1, because of it needs two-way transmission/receiving chip 101, the cost height, complex structure is not so adopt.
But, will send in the prior art/receiving chip lies in the bottom of Trackball device, just means that the wiring board of Trackball device also needs to lie in its bottom, because transmission/receiving chip welds in the circuit board; Make the height or the thickness of whole Trackball device surpass the height or the thickness of traditional mechanical transmission-type Trackball device thus, thereby limited the use field and the development range of laser or photo-electric trace ball.
In addition, because trace ball is moved down in working order, existing Trackball device is difficult to accomplish with lower cost the structure of complete waterproof, for example number of patent application is 200620013555.0 photoelectricity stainless steel trace ball, the ponding that infiltrates during motion accumulates in the bottom, and influence lies in the light path of wiring board bottom transmission/receiving chip.Have product to adopt design one openable capping above trace ball, open it and take out trace ball removing ponding, use is inconvenient, also can't satisfy the request for utilization of the anti-riot anti-dismounting in public arena.
Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
The objective of the invention is to, a kind of Trackball device and its implementation and system are provided, but the thickness of existing laser of attenuate or photo-electric Trackball device is avoided dwindling its use field greatly and limiting its development range because of volume.
Another object of the present invention is that for the Trackball device of realizing complete waterproof construction provides comparatively feasible solution, mode satisfies the anti-riot anti-dismounting requirement when using in public at lower cost.
Technical scheme of the present invention is as follows: a kind of Trackball device comprises trace ball body and wiring board; Be provided with the transmission/receiving chip of laser or photoelectricity in the circuit board; The light guiding lens bottom surface of transmission/receiving chip is provided with towards the trace ball body surface; The centre of sphere of trace ball body is positioned on the normal plane of light guiding lens bottom surface; Wherein: the light guiding lens bottom surface is arranged on the side of trace ball body; The baseplane of light guiding lens bottom surface relevant path ball body is obliquely installed.
Described Trackball device, wherein: the baseplane inclination angle beta scope of light guiding lens bottom surface relevant path ball body can be arranged between 0 °＜β＜90 °.
Described Trackball device, described trace ball body is wrapped between upper holder and the lower fixed frame; The trace ball upper part of body is exposed from the center pit of upper holder; The setting of in lower fixed frame, can rolling of the lower support of trace ball body; Wherein: the sidewall slope setting of lower fixed frame; Angled side walls is provided with the window of adaptive light guiding lens bottom surface; Wiring board is fixedly installed on the outside surface of this sloped sidewall.
Described Trackball device, wherein: between the light guiding lens bottom surface of the lower fixed frame sidewall at window place and transmission/receiving chip, be provided with water-proof silica-gel.
Described Trackball device, wherein: sidewall or bottom at lower fixed frame are provided with the weep hole that is used to discharge inner ponding.
Described Trackball device, wherein: the joint that connects aqueduct can be set at the weep hole place.
Described Trackball device, wherein: be provided with transparent or semitransparent dust cover between trace ball body and the upper holder.
Described Trackball device, wherein: the trace ball body is set to steel ball.
A kind of trace ball implementation method wherein, may further comprise the steps: the wiring board inclined side is placed on lateral location below the trace ball body centre of sphere, guarantees that the centre of sphere of trace ball body is positioned on the normal plane of light guiding lens bottom surface; The light guiding lens bottom surface of transmission/receiving chip that makes laser on the wiring board or photoelectricity is towards the baseplane inclination angle beta of trace ball body surface and relevant path ball body; Image capturing system in the transmission/receiving chip is obtained the thumbnail image data on trace ball surface by light guiding lens and illuminator; Digital signal processor in the transmission/receiving chip is determined direction and the distance that the trace ball body moves according to surperficial thumbnail image data.
Described trace ball implementation method, wherein, determine direction that the trace ball body moves and apart from the time, also comprise: the trigonometric function at the employing β angle when calculating the displacement of Y direction of the microchip in the transmissions/receiving chip is revised.
A kind of trace ball realizes system, comprises trace ball body and wiring board; Be provided with the transmission/receiving chip of laser or photoelectricity in the circuit board; Wherein: the wiring board inclined side is placed on the following lateral location of the trace ball body centre of sphere, and the centre of sphere of trace ball body is positioned on the normal plane of light guiding lens bottom surface; The light guiding lens bottom surface of transmission/receiving chip is towards the baseplane inclination angle beta of trace ball body surface and relevant path ball body on the wiring board; Transmission/receiving chip comprise when being used for acquisition trajectories ball body moves surface thumbnail image data microchip image capturing system, determine the digital signal processor of trace ball body moving direction and distance and calculate X-axis and the microchip of moving direction of y-axis shift and distance according to surperficial thumbnail image data.
Described trace ball realizes system, and wherein: described microchip comprises that one is used for the Y displacement correction firmware revised when calculating the displacement of Y direction.
Described trace ball realizes system, and wherein: described Y displacement correction firmware adopts the trigonometric function at β angle to revise when calculating the displacement of Y direction.
A kind of Trackball device provided by the present invention and its implementation and system, owing to adopted the wiring board inclined side to be placed on the technological means of trace ball body side, one has overcome the thickness of existing laser or photo-electric Trackball device or height than the thicker or higher defective of mechanical transmission-type Trackball device of the same type, has avoided dwindling its use field greatly and limiting its development range because of whole Trackball device volume becomes; Two come only in the transmission/receiving chip of laser or photoelectricity, revolutionary ground is revised a little to the FIRMWARE program in its microchip, solve wiring board and tilted to be sidelong the inconsistent problem of bringing of X-Y direction movement velocity, just can provide comparatively feasible solution, satisfy anti-riot anti-dismounting requirement when using in public with lower one-tenth the manner for the Trackball device of realizing complete waterproof construction.
Description of drawings
Fig. 1 a is that the wiring board in the Trackball device keeps flat bottom implementation method schematic diagram in the prior art.
Fig. 1 b is that the wiring board in the Trackball device is placed side implementation method schematic diagram vertically in the prior art.
Fig. 2 is that the wiring board in the Trackball device of the present invention is tiltedly put and is sidelong the implementation method schematic diagram.
Fig. 3 is the stereoscopic figure of Trackball device of the present invention.
Fig. 4 is the internal view of Trackball device of the present invention.
Fig. 5 is the explosive view of Trackball device of the present invention.
Embodiment
Below with reference to accompanying drawing, the specific embodiment of the present invention and embodiment are described in detail, described specific embodiment in order to explain the present invention, is not to be used to limit the specific embodiment of the present invention only.
A kind of Trackball device of the present invention can be the laser trace ball device, perhaps also can be the photoelectronic trace ball device, and one of its embodiment as shown in Figure 3, comprises upper holder 140, lower fixed frame 110, trace ball body 100 and wiring board 170; Upper holder 140 can be connected on the lower fixed frame 110 by screw retention, in the middle of trace ball body 100 is wrapped in; Expose from the center pit of upper holder 140 on the top of trace ball body 100; The setting of in lower fixed frame 110, can rolling of the lower support of trace ball body 100; As shown in Figure 4, one side sidewall slope of lower fixed frame 110 is provided with; Wiring board 170 can be connected on the outside surface of this sloped sidewall by screw retention; Wiring board 170 is provided with the transmission/receiving chip 171 of laser or photoelectricity; The light guiding lens bottom surface of transmission/receiving chip 171 is provided with towards trace ball body 100 surfaces; This angled side walls is provided with the window 111 of adaptive light guiding lens bottom surface; As shown in Figure 2, the centre of sphere of trace ball body 100 is positioned on the normal plane of light guiding lens bottom surface 102; Light guiding lens bottom surface 102 is obliquely installed in the side of trace ball body 100, and the position of light guiding lens bottom surface 102 can be preferably placed at the following position of trace ball body 100 centre ofs sphere; The baseplane inclination angle beta of light guiding lens bottom surface 102 relevant path ball bodies 100.
Based on above-mentioned Trackball device, the invention allows for a kind of trace ball implementation method, one of its embodiment, may further comprise the steps: the wiring board inclined side is placed on lateral location below the trace ball body centre of sphere, guarantees that the centre of sphere of trace ball body is positioned on the normal plane of light guiding lens bottom surface; The light guiding lens bottom surface of transmission/receiving chip that makes laser on the wiring board or photoelectricity is towards the baseplane inclination angle beta of trace ball body surface and relevant path ball body; Surperficial thumbnail image data when moving by the image capturing system acquisition trajectories ball body in the transmission/receiving chip; Determine direction and the distance that the trace ball body moves by the digital signal processor in the transmission/receiving chip according to surperficial thumbnail image data.
Further, determine direction that the trace ball body moves and apart from the time, can revise by the trigonometric function at the employing β angle when calculating the displacement of Y direction of the microchip in the transmissions/receiving chip, wherein, Y=X * cos β.
Based on above-mentioned trace ball implementation method, the invention allows for a kind of trace ball and realize system, one of its embodiment as shown in Figure 4, comprises trace ball body 100 and wiring board 170; Wiring board 170 is provided with the transmission/receiving chip 171 of laser or photoelectricity; Preferred wiring board 170 inclined side are placed on the following lateral location of trace ball body 100 centre ofs sphere; As shown in Figure 2, the centre of sphere of trace ball body 100 is positioned on the normal plane of light guiding lens bottom surface 102; The light guiding lens bottom surface 102 of transmission/receiving chip 171 is towards trace ball body 100 surfaces and the baseplane inclination angle beta of relevant path ball body 100 on the wiring board; Transmission/receiving chip 171 comprise when being used for acquisition trajectories ball body moves surface thumbnail image data microchip image capturing system, determine the digital signal processor of trace ball body moving direction and distance and calculate X-axis and the microchip of moving direction of y-axis shift and distance according to surperficial thumbnail image data.
Further, described microchip comprises is used for the Y displacement correction firmware revised that when calculating the displacement of Y direction i.e. burning is improved FIRMWARE program in microchip.
Be preferably, this Y displacement correction firmware adopts the trigonometric function at β angle to revise when calculating the displacement of Y direction, wherein, and Y=X * cos β.
As shown in Figure 2, microchip in the transmission/receiving chip of laser or photoelectricity calculate the moving direction of X-axis and y-axis shift and apart from the time, because the movement velocity of X-Y direction is also inconsistent, need correspondingly regulate or revise, its proportionate relationship can be expressed as X:Y=D:D * cos β, and wherein D is the diameter of trace ball body.If the movement velocity difference of X-Y direction still in the people experiences tolerance, can not revised yet.
Compare with system with Trackball device of the prior art and its implementation, a kind of Trackball device provided by the present invention and its implementation and system, owing to adopted the wiring board inclined side to be placed on the technological means of trace ball body side, one has overcome the thickness of existing laser or photo-electric Trackball device or height than the thicker or higher defective of mechanical transmission-type Trackball device of the same type, has avoided dwindling its use field greatly and limiting its development range because of whole Trackball device volume becomes; Two come only in the transmission/receiving chip of laser or photoelectricity, revolutionary ground is revised a little to the FIRMWARE program in its microchip, solve wiring board and tilted to be sidelong the inconsistent problem of bringing of X-Y direction movement velocity, just can provide comparatively feasible solution, satisfy anti-riot anti-dismounting requirement when using in public with lower one-tenth the manner for the Trackball device of realizing complete waterproof construction.
In the preferred implementation of photoelectronic trace ball device that wiring board of the present invention tilts to be sidelong and its implementation and system, as shown in Figure 2, the scope of the baseplane inclination angle beta of light guiding lens bottom surface 102 relevant path ball bodies 100 can be arranged between 0 °＜β＜90 °, from the curve map of trigonometric function cosine as can be known, slope in this span is bigger, can have higher coefficient correction effect; Between preferred 35 ° ~ 55 °, not only the cosine values rate of change in this angular range is higher, and can make Trackball device have smaller size smaller on the whole; Angle values with better correction effect such as for example 45 °, 52 °, 58 °.The angle beta that the baseplane of light guiding lens bottom surface 102 relevant path ball bodies 100 tilts among Fig. 2, also be the angle beta that wiring board 170 relative lower fixed frames 110 bottom surfaces tilt among Fig. 4, the β size depends on trace ball body diameter, the receipts/size of a chip (circuit board) and the preferred thickness of whole trace ball.
Be preferably, as shown in Figure 3, because lower fixed frame 110 inner bottom surfaces are without any circuit, so can weep hole joint 114 be set on the sidewall of lower fixed frame 110, be used to connect drainpipe and discharge the ponding that penetrates into lower fixed frame 110 bottoms from the slit between trace ball body 100 and the dust cover 160.In addition, perhaps also the weep hole joint can be set in the bottom of lower fixed frame 110.The lateral wall of fixed mount 110 is provided with one and is communicated with inner weep hole joint 114, on weep hole joint 114, connect drainpipe again, the ponding of fixed mount 110 inside is excluded, neither can the motion of trace ball body 100 be had any impact, also can not produce what influence the wiring board 170 that fixed mount 110 other skew backs are put.Mode is made the photo-electric Trackball device structure of complete waterproof cheaply thus.
Be preferably, as shown in Figure 4, between the light guiding lens bottom surface of lower fixed frame 110 sidewalls at window 111 places and transmission/receiving chip 171, be provided with water-proof silica-gel 172, be used to stop the ponding that penetrates into lower fixed frame 110 inside to immerse wiring board 170, avoid causing the damage of circuit and components and parts; Simultaneously, owing to thoroughly completely cut off circuit and trace ball spheroid, when trace ball adopts metal ball body, still can tolerate very high exterior static voltge surge, thereby enlarge the application of metallic traces ball.
In addition, shown in Figure 4 and 5, in the preferred implementation of photoelectronic trace ball device that wiring board of the present invention tilts to be sidelong and its implementation and system, also be provided with waterproof sponge 150, dust cover 160 in the inside of this photoelectronic trace ball device; Dust cover 160 is arranged between upper holder 140 and the trace ball body 100; Waterproof sponge 150 is arranged between dust cover 160 and the upper holder 140.
In specific implementation process, trace ball body 100 can be arranged to stainless steel ball, and blasting treatment can be done in the surface of stainless steel ball.
For another example, when trace ball body 100 adopted stainless steel ball, described dust cover 160 can adopt transparent or semitransparent material, under the irradiation of the light emitting diode of She Zhiing, can or play effect backlight night in environment with dark light in the circuit board.
When described trace ball body 100 does not adopt stainless steel ball, trace ball body 100 can be set adopt transparent or semitransparent material, in the circuit board under the irradiation of the light emitting diode of She Zhiing, also can or play effect backlight night, to realize the effect backlight of whole device in environment with dark light.
In the preferred implementation of trace ball implementation method of the present invention and system, adopting the navigation sensor ADNS-7550 of AnHua GaoKe Avago with laser transmission/receiving chip is example, scioptics and illuminator obtain the thumbnail image on surface, and then these images decide mobile direction and distance by digital signal processor processes; Sai Pulasi microchip control navigation sensor obtain X and Y-axis to the direction and the distance that move, send to host computer after as calculated.
Concrete, Avago obtains the continuous surface image based on the ADNS-7550 of means of optical navigation technique by optical mode, and use mathematical computations to decide mobile direction and distance, sensor includes an image capturing system (IAS, Image Acquisition System) and a digital signal processor (DSP, Digital Signal Processor), wherein IAS scioptics and illuminator obtain the thumbnail image on surface, and then these images are handled by DSP and decided mobile direction and distance.
For the consideration of saving entire product thickness, and with the oblique side that is positioned over trace ball of pcb board, it is smaller that the displacement that this particular design makes Y-axis measure is compared the X-axis ratio during structural design, so the FIRMWARE program of microchip has been done correction to this.Therefore the FIRMWARE program revolutionaryly has been done nonlinear amplification with the displacement data table of Y-axis relative displacement data contrast Avago navigation sensor.
Should be understood that, the above only is preferred embodiment of the present invention, be not sufficient to limit technical scheme of the present invention, for those of ordinary skills, within the spirit and principles in the present invention, can be increased and decreased according to the above description, replacement, conversion or improvement, for example, as being equal to one of technical scheme of replacement, perhaps also can revise the distance that X-axis moves, wherein, X=Y/cos β; And for example; except can using in public; can also on industrial various manufacturings, checkout equipment, use; also can on medical diagnostic equipment and imaging device, use etc.; and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection domain of claims of the present invention.
Claims (13)
1. a Trackball device comprises trace ball body and wiring board; Be provided with the transmission/receiving chip of laser or photoelectricity in the circuit board; The light guiding lens bottom surface of transmission/receiving chip is provided with towards the trace ball body surface; The centre of sphere of trace ball body is positioned on the normal plane of light guiding lens bottom surface; It is characterized in that: the light guiding lens bottom surface is arranged on the side of trace ball body; The baseplane of light guiding lens bottom surface relevant path ball body is obliquely installed.
2. Trackball device according to claim 1 is characterized in that: the baseplane inclination angle beta scope of light guiding lens bottom surface relevant path ball body can be arranged between 0 °＜β＜90 °.
3. Trackball device according to claim 1 is characterized in that: described trace ball body is wrapped between upper holder and the lower fixed frame; The trace ball upper part of body is exposed from the center pit of upper holder; The setting of in lower fixed frame, can rolling of the lower support of trace ball body; The sidewall slope setting of lower fixed frame; Angled side walls is provided with the window of adaptive light guiding lens bottom surface; Wiring board is fixedly installed on the outside surface of this sloped sidewall.
4. Trackball device according to claim 3 is characterized in that: be provided with water-proof silica-gel between the light guiding lens bottom surface of the lower fixed frame sidewall at window place and transmission/receiving chip.
5. Trackball device according to claim 3 is characterized in that: sidewall or bottom at lower fixed frame are provided with the weep hole that is used to discharge inner ponding.
6. Trackball device according to claim 5 is characterized in that: the joint that connects aqueduct can be set at the weep hole place.
7. Trackball device according to claim 3 is characterized in that: be provided with transparent or semitransparent dust cover between trace ball body and the upper holder.
8. Trackball device according to claim 3 is characterized in that: the trace ball body is set to steel ball.
9. a trace ball implementation method is characterized in that, may further comprise the steps:
The wiring board inclined side is placed on lateral location below the trace ball body centre of sphere, guarantees that the centre of sphere of trace ball body is positioned on the normal plane of light guiding lens bottom surface; The light guiding lens bottom surface of transmission/receiving chip that makes laser on the wiring board or photoelectricity is towards the baseplane inclination angle beta of trace ball body surface and relevant path ball body;
Image capturing system in the transmission/receiving chip is obtained the thumbnail image data on trace ball surface by light guiding lens and illuminator;
Digital signal processor in the transmission/receiving chip is determined direction and the distance that the trace ball body moves according to surperficial thumbnail image data.
10. trace ball implementation method according to claim 9, it is characterized in that, determine direction that the trace ball body moves and apart from the time, also comprise: the trigonometric function at the employing β angle when calculating the displacement of Y direction of the microchip in the transmissions/receiving chip is revised.
11. a trace ball realizes system, comprises trace ball body and wiring board; Be provided with the transmission/receiving chip of laser or photoelectricity in the circuit board; It is characterized in that:
The wiring board inclined side is placed on the following lateral location of the trace ball body centre of sphere, and the centre of sphere of trace ball body is positioned on the normal plane of light guiding lens bottom surface; The light guiding lens bottom surface of transmission/receiving chip is towards the baseplane inclination angle beta of trace ball body surface and relevant path ball body on the wiring board;
Transmission/receiving chip comprise when being used for acquisition trajectories ball body moves surface thumbnail image data microchip image capturing system, determine the digital signal processor of trace ball body moving direction and distance and calculate X-axis and the microchip of moving direction of y-axis shift and distance according to surperficial thumbnail image data.
12. trace ball according to claim 11 realizes system, it is characterized in that: described microchip comprises that one is used for the Y displacement correction firmware revised when calculating the displacement of Y direction.
13. trace ball according to claim 12 realizes system, it is characterized in that: described Y displacement correction firmware adopts the trigonometric function at β angle to revise when calculating the displacement of Y direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101866652A CN102221913B (en) | 2011-07-05 | 2011-07-05 | Track ball device as well as implementation method and system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101866652A CN102221913B (en) | 2011-07-05 | 2011-07-05 | Track ball device as well as implementation method and system thereof |
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| Publication Number | Publication Date |
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| CN102221913A true CN102221913A (en) | 2011-10-19 |
| CN102221913B CN102221913B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101866652A Expired - Fee Related CN102221913B (en) | 2011-07-05 | 2011-07-05 | Track ball device as well as implementation method and system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727253A (en) * | 2012-05-18 | 2012-10-17 | 深圳市理邦精密仪器股份有限公司 | Ultrasonic trackball signal processing method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2711810Y (en) * | 2004-05-11 | 2005-07-20 | 英群企业股份有限公司 | False track ball optical pointer device |
| CN200972639Y (en) * | 2006-11-07 | 2007-11-07 | 精元电脑股份有限公司 | Optical tracing-ball device |
| CN201374040Y (en) * | 2009-03-19 | 2009-12-30 | 深圳市证通电子股份有限公司 | Trackball |
| CN202120223U (en) * | 2011-07-05 | 2012-01-18 | 深圳市科羽科技发展有限公司 | Track ball device |
-
2011
- 2011-07-05 CN CN2011101866652A patent/CN102221913B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2711810Y (en) * | 2004-05-11 | 2005-07-20 | 英群企业股份有限公司 | False track ball optical pointer device |
| CN200972639Y (en) * | 2006-11-07 | 2007-11-07 | 精元电脑股份有限公司 | Optical tracing-ball device |
| CN201374040Y (en) * | 2009-03-19 | 2009-12-30 | 深圳市证通电子股份有限公司 | Trackball |
| CN202120223U (en) * | 2011-07-05 | 2012-01-18 | 深圳市科羽科技发展有限公司 | Track ball device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102727253A (en) * | 2012-05-18 | 2012-10-17 | 深圳市理邦精密仪器股份有限公司 | Ultrasonic trackball signal processing method and system |
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| CN102221913B (en) | 2013-06-05 |
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