CN103793102B - Coordinate setting module, optical touch control system and the method controlling touch medium - Google Patents
Coordinate setting module, optical touch control system and the method controlling touch medium Download PDFInfo
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- CN103793102B CN103793102B CN201210421378.XA CN201210421378A CN103793102B CN 103793102 B CN103793102 B CN 103793102B CN 201210421378 A CN201210421378 A CN 201210421378A CN 103793102 B CN103793102 B CN 103793102B
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Abstract
A kind of method that the invention discloses electricity in order to detect active touch medium.Described method includes capturing the image with described the exported optical signal of active touch medium, read the first threshold value, the relatively brightness value of described optical signal and described first threshold value, and Low Power Mode is performed when the described brightness value of described optical signal is less than the first threshold value.The optical touch control system of the present invention and detect the method for electricity of active touch medium and be not required to set up additional assemblies with the method for the use pattern switching active touch medium, existing equipment is utilized just can directly to detect the electricity of active touch medium, as whether needing switching operation modes or prompting to change the reference storing up electricity assembly of active touch medium.
Description
Technical field
The present invention relates to a kind of coordinate setting module and optical touch control system thereof, more particularly to one, there is electricity and detect
The coordinate setting module of brake, optical touch control system, the method for electricity of the active touch medium of detecting and switching are actively
The method of the use pattern of formula touch medium.
Background technology
Optical touch control equipment includes two kinds of forms.One of which optical touch control equipment utilization reflection edge strip or light-strip
Detect the motion track of non-active photism touch object, such as finger, do not have the pointer of lighting function or other is any
Touch medium, to calculate the coordinate of non-active photism touch object.Another kind of optical touch control equipment is then to utilize image
Sensory package detecting has the pointer of active illuminating, provides corresponding operational order by analyzing its coordinate.General next
Saying have the pointer of active illuminating and must include storage electricity assembly to provide required electric power, if electric power is not enough, pointer is sent out
Go out the strength reduction of light, influence whether the detection sensitivity of optical touch control equipment, therefore the pointer of active illuminating is usual
There is electric-quantity monitoring assembly, enough to detect the electric power of storage electricity assembly at any time.But, traditional active illuminating pointer
Use electric-quantity monitoring assembly, extra manufacturing cost need to be increased, and the volume of active illuminating pointer is the most more
Huge with accommodating electric-quantity monitoring assembly, therefore traditional active illuminating pointer has cost intensive, bulky and operate inconvenience
Shortcoming.
Summary of the invention
The present invention relates to a kind of there is the coordinate setting module of electric-quantity monitoring function, optical touch control system, detecting actively
The method of the electricity of formula touch medium and switch the method for use pattern of active touch medium, to solve above-mentioned problem.
The claim of the present invention provides a kind of method of electricity in order to detect active touch medium.Described side
Method includes capturing the image with described the exported optical signal of active touch medium, reads the first threshold value, relatively described light
The brightness value of signal and described first threshold value, and perform when the described brightness value of described optical signal is less than the first threshold value
Low Power Mode.
The claim of the present invention also provides for a kind of method of use pattern switching active touch medium.Described
Method includes receiving operational order, and reduces the output frequency of optical signal according to described operational order.
The claim of the present invention also provides for a kind of coordinate setting module with detecting electricity function.Described coordinate
Locating module includes image sensing assembly and processor.Described image sensing assembly is used for capturing have active touch medium
The image of exported optical signal.Described processor electrically connects described image sensing assembly.The more described optical signal of described processor
Brightness value and the first threshold value, if the described brightness value of described optical signal less than described first threshold value, performs low electricity mould
Formula.Described processor also compares described brightness value and second threshold value of described optical signal, and then judges that described optical signal is in institute
State the image space in image, and calculate the seat of described active touch medium according to the described image space of described optical signal
Mark.
The claim of the present invention also provides for a kind of optical touch control system.Described optical touch control system includes face
Plate, active touch medium and coordinate setting module.Described active touch medium is used for exporting optical signal, and with removable
Mode is arranged on the surface of described panel.Described coordinate setting module includes image sensing assembly and processor.Described image
Sensory package is used for capturing the image with the exported optical signal of active touch medium.Described processor electrically connects described image
Sensory package.The brightness value of the more described optical signal of described processor and the first threshold value, if the described brightness of described optical signal
Value then performs Low Power Mode less than described first threshold value.Described processor also compare described optical signal described brightness value with
Second threshold value, and then judge described optical signal image space in described image, and according to the described one-tenth of described optical signal
Image position calculates the coordinate of described active touch medium.
The optical touch control system of the present invention utilizes coordinate setting module to detect the light letter that active touch medium is exported
Number brightness value.Optical signal is for visible ray or black light, when image sensing assembly captures the image with optical signal, place
Reason device can compare the brightness value of optical signal and the first threshold value and the second threshold value in advance, to judge the brightness of optical signal the most enough
Enough.When the brightness of optical signal is enough, and processor continues and performs the coordinate setting function of active touch medium；And when optical signal
During luminance shortage, processor can provide eurypalynous Low Power Mode in real time, by user according to place environment, place and individual
Demand is switched to the Low Power Mode being suitable for, and the most only provides the prompting message of electricity deficiency or also provides for several prolongations master
The mode using the time of dynamic formula touch medium.Therefore, the optical touch control system of the present invention and detect active touch-control matchmaker
The method of the electricity being situated between is not required to set up additional assemblies with the method for the use pattern switching active touch medium, utilizes existing setting
Whether the standby electricity that just can directly detect active touch medium, as needing switching operation modes or prompting to change active touch-control
The reference of the storage electricity assembly of medium.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the optical touch control system of the embodiment of the present invention.
Fig. 2 is the image sensing schematic diagram of the optical touch control system of the embodiment of the present invention.
Fig. 3 is another image sensing schematic diagram of the optical touch control system of the embodiment of the present invention.
Fig. 4 is the flow chart of the use pattern switching active touch medium of the embodiment of the present invention.
Fig. 5 is the flow chart of the electricity detecting active touch medium of the embodiment of the present invention.
Wherein, description of reference numerals is as follows:
10 optical touch control system 12 panels
14 active touch medium 16 coordinate setting modules
18 image sensing assembly 20 processors
22 screen S optical signals
T1 the first threshold value T2 the second threshold value
Step 400,402,404
Step 500,502,504,506,508,510,512,514,516,518
Detailed description of the invention
Refer to the schematic diagram of the optical touch control system 10 that Fig. 1, Fig. 1 are the embodiment of the present invention.Optical touch control system
10 include panel 12, active touch medium 14 and coordinate setting module 16.In this embodiment, panel 12 can be common white
Plate or display panel, coordinate setting module 16 is generally located on an end angle of panel 12, and active touch medium 14
It can be the pointer with lighting function.User can drive active touch medium 14 to vacillate on the surface of panel 12 with input
Instruction, and coordinate setting module 16 can be used to detect the optical signal S that active touch medium 14 is exported, and calculate active touching
Control medium 14 moves on the surface of panel 12 and produces the coordinate of track, and starts the application journey of corresponding described instruction according to coordinate
Sequence.
As it is shown in figure 1, coordinate setting module 16 includes image sensing assembly 18 and processor 20.Image sensing assembly 18
In order to capture the image on panel 12 with optical signal S.Processor 20 electrical connection graph compares light as sensory package 18, processor 20
The brightness value of signal S and the first threshold value T1 and the second threshold value T2, when brightness value is more than the first threshold value T1, represent actively
The electric power of formula touch medium 14 is abundant, thus processor 20 can then comparison brightness value and the second threshold value T2, active to find out
14 coordinates at panel 12 of touch medium.When the electric power of active touch medium 14 is not enough, then optical signal S can be more dull,
If therefore brightness value is less than the first threshold value T1, represent the electric power of active touch medium 14 less than warning value, therefore processor
20 can perform Low Power Mode, in order to extend the use time of active touch medium 14, or remind the information that user is relevant.
For example, coordinate setting module 16 may also include screen 22, is connected electrically in processor 20.Screen 22 is optionally
Can be undersized display floater, when processor 20 performs Low Power Mode, can show on screen 22 that there is electricity deficiency
Cue, to remind the information that user is relevant.Wherein, cue can remind user to change active touch medium
The operator scheme of 14, or the handoff options of battery saving mode is provided, or suggestion user changes active touch medium immediately
Storage electricity assembly (such as battery) of 14, or remind user that active touch medium 14 is charged.The application state of cue
Sample can be not limited to described in preceding description, and end is depending on design requirement, so no longer elaborate.
Except aforesaid cue, the optical touch control system 10 of the present invention also may select and performing Low Power Mode
Time, reduce the first threshold value T1 or the second threshold value T2.Reduce the first threshold value T1 and can postpone the startup time of Low Power Mode,
Avoiding user when operating optical touch control system 10, meeting is the lowest because the electricity of active touch medium 14 is not enough
The cue of electricity pattern is disturbed.Although additionally, reduction the second threshold value T2 reduces processor 20 and judges that optical signal S exists
The degree of accuracy of image space in image, but when the luminance shortage of optical signal S, still can be had by the second relatively low threshold value T2
Effect analyzes the crest of optical signal S, implies that and still can find out optical signal S image space in the picture, and calculates active touching
Control medium 14, at the coordinate of panel 12, therefore reduces the second threshold value T2 and can extend the use time of active touch medium 14.
Furthermore, processor 20 also can provide operational order, operational order to be used for controlling actively when performing Low Power Mode
Formula touch medium 14 reduces the output frequency of its optical signal S, and correspondingly reduces the capturing images frequency of image sensing assembly 18.
Reduce capturing images frequency in order to make image sensing assembly 18 can correctly synchronous pick-up to the image with low frequency optical signal S.
Active touch medium 14 can slow down power consumption because of the optical signal S output performing low frequency, can effectively extend active touch-control
The use time of medium 14.
Refer to the image sensing schematic diagram of the optical touch control system 10 that Fig. 2, Fig. 2 are the embodiment of the present invention.The present invention
Can set the first threshold value T1, the such as first threshold value T1 according to the maximum brightness value of optical signal S can be the most light of optical signal S
The 60% of angle value, 40% or 20%.Additionally, the brightness value of optical signal S can include multiple brightness number, and formed as shown in Figure 2
Waveform.The image that image sensing assembly 18 is captured can be divided into multiple hurdle according to its picture element lane place, and optical signal S's is every
One brightness number represents the optical signal S brightness number on one of them corresponding hurdle of image, for example, the ripple of optical signal S
Peak section has bigger brightness number.
Along with the power consumption of active touch medium 14, the crest of optical signal S can be gradually reduced, and processor 20 can follow
The comparison that a cycle repeatedly carries out the brightness value of the first threshold value T1 and optical signal S, until judging the brightness of optical signal S
When value is less than the first threshold value T1, processor 20 will start Low Power Mode, so that the optical touch control system 10 of the present invention
There is the electricity of detecting luminous touch control pen (active touch medium 14), and perform the merit of corresponding auxiliary mode according to electricity size
Energy.As in figure 2 it is shown, reduce the first threshold value T1 in order to postpone the startup time of Low Power Mode.
Refer to another image sensing schematic diagram of the optical touch control system 10 that Fig. 3, Fig. 3 are the embodiment of the present invention.
The present invention also sets the second threshold value T2, the such as second threshold value T2 according to the background luminance of image and is about background luminance
80%, the second threshold value T2 can include multiple door numerical value in the same manner, respectively in order to correspond to the bright of multiple hurdles difference of image
Degree door.So, the processor 20 of coordinate setting module 16 is also used for comparing brightness value and second threshold value of optical signal S
T2, can determine whether optical signals S image space in the picture according to the crest location of optical signal S, then recycles optical signal S's
Image space, to calculate the coordinate of active touch medium 14, completes active optical touch-control location.As it is shown on figure 3, reduce
Second threshold value T2 makes coordinate setting module 16 can accurately detect the light of active touch medium 14 of low state of charge
Signal S, thereby extends the use time of active touch medium 14.
Refer to the flow chart of the use pattern switching active touch medium 14 that Fig. 4, Fig. 4 are the embodiment of the present invention.
The method of the switching use pattern shown in Fig. 4 is useful in the active touch medium 14 shown in Fig. 1.First, perform step 400,
Output optical signal S, the output frequency of this optical signal S is the active touch medium 14 predeterminated frequency in original state.If because of
Long-time use causes electric power not enough, and processor 20 can send operational order to be switched to Low Power Mode.Therefore this method is then
Perform step 402, receive operational order, and perform step 404, reduce the output frequency of optical signal S according to operational order.As front
Described, the Low Power Mode of the optical touch control system 10 of the present invention may be selected to be the output frequency reducing active touch medium 14
Rate, so can reduce the electric quantity consumption of active touch medium 14, extends the use time of active touch medium 14 further.
Refer to the flow chart of the electricity detecting active touch medium 14 that Fig. 5, Fig. 5 are the embodiment of the present invention.Fig. 5 institute
The method of the detecting electricity shown is useful in the coordinate setting module 16 shown in Fig. 1.First, perform step 500, carry out optical profile type and touch
The initializing set of Ore-controlling Role 10, then, performs step 502, starts luminance detection function, and processor 20 can drive image sensing
Assembly 18 captures the image on panel 12, and image can include the optical signal S that active touch medium 14 is exported.Then,
Perform step 504, it is judged that the brightness value of optical signal S is enough.Judge that the brightness value of optical signal S the most enough includes following step
Suddenly, processor 20 connects to memory module and reads the first threshold value T1, and compares brightness value and first threshold value of optical signal S
T1。
If the brightness value of optical signal S is more than the first threshold value T1, perform step 506, to detect active touch medium 14
Coordinate.The coordinate wherein detecting active touch medium 14 includes, processor 20 connects to memory module and reads the second door
Value T2, and compare brightness value and the second threshold value T2 of optical signal S.It follows that when one of them brightness number of brightness value is big
When the corresponding door numerical value of the second threshold value T2, processor 20 can obtain optical signal S image space in the picture, and profit
14 coordinates at panel 12 of active touch medium are calculated with its image space.
On the other hand, if the brightness value of optical signal S is less than the first threshold value T1, then performs step 508, start low electricity mould
Formula.Low Power Mode includes the use time extending active touch medium 14 and points out the modes such as electricity is not enough, makes to allow
Which kind of Low Power Mode user select to perform, and then performs step 510, is confirmed whether to start prolongation mechanism.If user selects
Selecting and do not start the mechanism using the time extending active touch medium 14, perform step 512, display has electricity deficiency information
Prompting message.Low Power Mode in step 512 can present electricity deficiency by modes such as word, pattern, sound, light
Prompting message, its change aspect is as it was previously stated, be no longer illustrated at this.If user selects to start extends active touch-control matchmaker
The mechanism using the time of Jie 14, then perform step 514, is confirmed whether to adjust threshold value.
If selecting to adjust threshold value, performing step 516, reducing the first threshold value T1 or the second threshold value T2.Reduce image
The prolongation mechanism of the detecting threshold value of sensory package 18 has been chatted bright front, is not described in detail in this.The visual actual demand of user or
The parameter preset of coordinate setting module 16, selectivity individually downgrade the first threshold value T1 or individually downgrade the second threshold value T2,
Or downgrade the first threshold value T1 and the second threshold value T2, in order to extend the use time of active touch medium 14 simultaneously.If
Not adjusting threshold value, then perform step 518, output function instruction is to reduce the optical signal S output frequency of active touch medium 14
Rate and the capturing images frequency of image sensing assembly 18.Step 518 can reduce the electricity of active touch medium 14 further and disappear
Consumption, to reach power saving and to extend the purpose of use time simultaneously.
In sum, the optical touch control system of the present invention utilizes coordinate setting module detecting active touch medium defeated
The brightness value of the optical signal gone out.Optical signal can be visible ray or black light, and image sensing assembly captures has optical signal
Image time, processor can compare the brightness value of optical signal and the first threshold value and the second threshold value in advance, to judge optical signal
Brightness enough.When the brightness of optical signal is enough, and processor continues and performs the coordinate setting function of active touch medium；
And when the luminance shortage of optical signal, processor can provide eurypalynous Low Power Mode in real time, by user according to place ring
Border, place and demands of individuals are switched to the Low Power Mode being suitable for, such as, show the prompting message of electricity deficiency or also provide for
Several use time extending active touch medium and the method saving electric quantity consumption.
Therefore, the method for the optical touch control system of the present invention and the electricity of detecting active touch medium thereof is main with switching
The method of the use pattern of dynamic formula touch medium is not required to set up additional assemblies, utilizes existing equipment just can directly detect active touching
Whether the electricity of control medium, as needing switching operation modes or prompting to change the reference storing up electricity assembly of active touch medium.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (22)
1. the method being used for detecting the electricity of active touch medium, it is characterised in that described method includes:
Capture the image with the optical signal that described active touch medium is exported；
Read the first threshold value；
The relatively brightness value of described optical signal and described first threshold value；
When the described brightness value of described optical signal is less than the first threshold value, perform Low Power Mode；
Read the second threshold value；
The relatively described brightness value of described optical signal and described second threshold value；
Judge described optical signal image space in described image；And
According to the described image space of described optical signal, calculate the coordinate of described active touch medium.
2. the method for claim 1, it is characterised in that perform described Low Power Mode and include:
Reduce described first threshold value.
3. the method for claim 1, it is characterised in that perform described Low Power Mode and include:
Display has the prompting message of electricity deficiency information.
4. the method for claim 1, it is characterised in that perform described Low Power Mode and include:
Output function instructs, and is used for controlling described active touch medium and reduces the output frequency of described optical signal.
5. method as claimed in claim 4, it is characterised in that export described operational order and farther include:
Reduce capturing images frequency, and the described output frequency of the corresponding described optical signal of described capturing images frequency.
6. the method for claim 1, it is characterised in that judge the described optical signal described one-tenth image position in described image
Put and include:
When one of them brightness number of described brightness value is more than the corresponding door numerical value of described second threshold value, obtain described
Image space.
7. the method for claim 1, it is characterised in that perform described Low Power Mode and farther include:
Reduce described second threshold value.
8. a coordinate setting module with detecting electricity function, it is characterised in that described coordinate setting module includes:
Image sensing assembly, is used for capturing the image with the optical signal that active touch medium is exported；And
Processor, electrically connects described image sensing assembly, the brightness value of the more described optical signal of described processor and the first door
Value, if the described brightness value of described optical signal is less than described first threshold value, performs Low Power Mode, and described processor enters one
Walk described brightness value and second threshold value of more described optical signal, and then judge the imaging in described image of the described optical signal
Position, and the coordinate of described active touch medium is calculated according to the described image space of described optical signal.
9. coordinate setting module as claimed in claim 8, it is characterised in that the described brightness value of described optical signal includes multiple
Brightness number, each brightness number of described optical signal represents the brightness on one of them hurdle of described image of the described optical signal
Numerical value.
10. coordinate setting module as claimed in claim 8, it is characterised in that described second threshold value includes multiple door number
Value, for the brightness door that multiple hurdles of corresponding described image are the most corresponding.
11. coordinate setting modules as claimed in claim 8, it is characterised in that described Low Power Mode is to reduce described first
Threshold value or described second threshold value.
12. coordinate setting modules as claimed in claim 8, it is characterised in that described coordinate setting module farther includes screen
Curtain, electrically connects described processor, and described Low Power Mode shows the prompting message with electricity deficiency information on the screen.
13. coordinate setting modules as claimed in claim 8, it is characterised in that described Low Power Mode provides operational order, with
Control described active touch medium and reduce the output frequency of described optical signal.
14. coordinate setting modules as claimed in claim 13, it is characterised in that described Low Power Mode is further by described
Operational order reduces the capturing images frequency of described image sensing assembly.
15. 1 kinds of optical touch control systems, it is characterised in that described optical touch control system includes:
Panel；
Active touch medium, is used for exporting optical signal, and described active touch-control matchmaker is movably arranged on described panel
Surface；And
Coordinate setting module, including:
Image sensing assembly, is used for capturing the image on described panel with described optical signal；And
Processor, electrical connection memory module and described image sensing assembly, the brightness value of the more described optical signal of described processor
With the first threshold value, if the described brightness value of described optical signal is less than described first threshold value, perform Low Power Mode, described
Processor compares described brightness value and second threshold value of described optical signal further, and then judges that described optical signal is at described figure
Image space in Xiang, and calculate described active touch medium position at described according to the described image space of described optical signal
The coordinate of plate.
16. optical touch control systems as claimed in claim 15, it is characterised in that the described brightness value of described optical signal includes
Multiple brightness number, each brightness number of described optical signal represents described optical signal on one of them hurdle of described image
Brightness number.
17. optical touch control systems as claimed in claim 15, it is characterised in that described second threshold value includes multiple door
Numerical value, for the brightness door that multiple hurdles of corresponding described image are the most corresponding.
18. optical touch control systems as claimed in claim 15, it is characterised in that described Low Power Mode is to reduce described the
One threshold value or described second threshold value.
19. optical touch control systems as claimed in claim 15, it is characterised in that described coordinate setting module farther includes
Screen, electrically connects described processor, and described Low Power Mode shows the prompting news with electricity deficiency information on the screen
Breath.
20. optical touch control systems as claimed in claim 15, it is characterised in that described Low Power Mode provides operation to refer to
Order, to control the output frequency of the described active touch medium described optical signal of reduction.
21. optical touch control systems as claimed in claim 20, it is characterised in that described Low Power Mode passes through institute further
State operational order and reduce the capturing images frequency of described image sensing assembly.
22. 1 kinds of methods being used for detecting the electricity of active touch medium, it is characterised in that described method includes:
Capture the image with the optical signal that described active touch medium is exported；
Read the first threshold value；
The relatively brightness value of described optical signal and described first threshold value；And
When the described brightness value of described optical signal is less than the first threshold value, reduce described first threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210421378.XA CN103793102B (en) | 2012-10-29 | 2012-10-29 | Coordinate setting module, optical touch control system and the method controlling touch medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210421378.XA CN103793102B (en) | 2012-10-29 | 2012-10-29 | Coordinate setting module, optical touch control system and the method controlling touch medium |
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| CN103793102B true CN103793102B (en) | 2016-12-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201020887A (en) * | 2008-11-28 | 2010-06-01 | Elan Microelectronics Corp | Illuminated touchpad module |
| CN101887327A (en) * | 2010-07-02 | 2010-11-17 | 廖明忠 | Multi-input large-area writing method, device and system |
| CN102314260A (en) * | 2010-06-29 | 2012-01-11 | 宏碁股份有限公司 | Optical input device and display system with same |
| CN102707817A (en) * | 2012-04-24 | 2012-10-03 | 广州市唯昕电子科技有限公司 | Laser writing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090262078A1 (en) * | 2008-04-21 | 2009-10-22 | David Pizzi | Cellular phone with special sensor functions |
| KR101351418B1 (en) * | 2010-10-26 | 2014-01-15 | 엘지디스플레이 주식회사 | Display device using infrared sensor module and method the same |
-
2012
- 2012-10-29 CN CN201210421378.XA patent/CN103793102B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201020887A (en) * | 2008-11-28 | 2010-06-01 | Elan Microelectronics Corp | Illuminated touchpad module |
| CN102314260A (en) * | 2010-06-29 | 2012-01-11 | 宏碁股份有限公司 | Optical input device and display system with same |
| CN101887327A (en) * | 2010-07-02 | 2010-11-17 | 廖明忠 | Multi-input large-area writing method, device and system |
| CN102707817A (en) * | 2012-04-24 | 2012-10-03 | 广州市唯昕电子科技有限公司 | Laser writing system |
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