CN201773381U - Infrared touch screen - Google Patents
Infrared touch screen Download PDFInfo
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- CN201773381U CN201773381U CN2009202196355U CN200920219635U CN201773381U CN 201773381 U CN201773381 U CN 201773381U CN 2009202196355 U CN2009202196355 U CN 2009202196355U CN 200920219635 U CN200920219635 U CN 200920219635U CN 201773381 U CN201773381 U CN 201773381U
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- infrared
- touch panel
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Abstract
The utility model discloses an infrared touch screen, which comprises infrared transmitting tubes, infrared receiving tubes, a touch detection area and a beam disperser. The infrared touch screen only includes a group of the infrared transmitting tubes and a group of the infrared receiving tubes; the group of the infrared transmitting tubes and the group of the infrared receiving tubes are opposite in positions; the beam disperser is mounted near the infrared transmitting tubes; infrared light transmitted by each infrared transmitting tube generates at least one infrared beam after being processed by the beam disperser; the infrared beams penetrating through the touch detection area from at least one direction are received by at least one infrared receiving tube; and a crossed infrared beam array is formed on the touch detection area by the infrared beams. The infrared touch screen can realize touch positioning by only one group of the infrared transmitting tubes and one group of the infrared receiving tubes, is simplified in structure and reduces production cost.
Description
Technical field
The utility model belongs to field of photoelectric technology, is specifically related to a kind of infrared touch panel.
Background technology
For a long time, touch-screen market is in the situation that the five colours appear, and adopts the touch-screen of different technologies to be applicable to different applied environments, and the infrared touch technology is wherein a kind of just, and it wins insider's favorable comment with stability, adaptability and the light transmission of height.As shown in Figure 1, be the structural representation of a kind of infrared touch panel of the prior art, this infrared touch panel comprises two groups of infrared transmitting tubes 101, two groups of infrared receiving tubes 102, touches surveyed area 103 and framework 104.This infrared touch panel is determined the ordinate of touch objects 100 by horizontal infrared transmitting tube and infrared receiving tube, determines the horizontal ordinate of touch objects 100 by infrared transmitting tube and infrared receiving tube longitudinally, thereby realizes touching the location.This infrared touch panel needs two groups of infrared transmitting tubes and two groups of infrared receiving tubes could realize touching the location, and production cost is too high.
The utility model content
At problems of the prior art, the utility model provides one group of infrared transmitting tube of a kind of needs and one group of infrared receiving tube just can realize touching the infrared touch panel of locating, this infrared touch panel comprises infrared transmitting tube, infrared receiving tube and touches surveyed area, it is relative with described one group of infrared receiving tube position with one group of infrared receiving tube and described one group of infrared transmitting tube that described infrared touch panel only includes one group of infrared transmitting tube, described infrared touch panel also includes the light beam decollator, and described light beam decollator is installed near the infrared transmitting tube; The infrared light that each infrared transmitting tube is launched generates at least one infrared beam after the light beam decollator is handled, pass the touch surveyed area from least one direction, is received by at least one infrared receiving tube; All infrared beams are touching the infrared beam array that surveyed area has formed intersection.
According to an aspect of the present utility model, include two groups of parallel infrared beams in the infrared beam array of described intersection.
According to an aspect of the present utility model, described two groups of parallel infrared beams are identical with the angle of same the leg of frame.
According to an aspect of the present utility model, described infrared touch panel also includes framework, and described infraluminescence pipe and infrared receiving tube are installed in respectively on two long legs of frame.
According to an aspect of the present utility model, described infrared touch panel also includes framework, and described infraluminescence pipe and infrared receiving tube are installed in respectively on two short legs of frame.
According to an aspect of the present utility model, described light beam decollator is the handkerchief polymer material, is provided with the deflection generating device on a face of described handkerchief polymer material.
According to an aspect of the present utility model, described deflection generating device is a wedge-shaped slot.
According to an aspect of the present utility model, described light beam decollator is the non-focusing concavees lens.
According to an aspect of the present utility model, the infrared light that each infrared transmitting tube of the two end portions in described one group of infrared transmitting tube is launched generates at least two infrared beams after described infrared beam is handled, pass the touch surveyed area from both direction at least, received by at least two infrared receiving tubes.
According to an aspect of the present utility model, the installation site of the infrared receiving tube of the two end portions in the infrared transmitting tube of the two end portions in described one group of infrared transmitting tube and the described one group of infrared receiving tube is positioned at outside the described touch surveyed area.
According to an aspect of the present utility model, the installation site of the infrared receiving tube of the two end portions in the infrared transmitting tube of the two end portions in described one group of infrared transmitting tube and the described one group of infrared receiving tube is positioned at outside the described touch surveyed area.
Others of the present utility model and/or advantage part are in the following description described, and wherein part is conspicuous in this explanation, perhaps can pass in the practice of the present utility model and learn.
Description of drawings
Fig. 1 is the structural representation of a kind of infrared touch panel of the prior art;
Fig. 2 is the structural representation of a kind of embodiment of infrared touch panel described in the utility model;
Fig. 3 is a kind of synoptic diagram of set-up mode of the infrared beam of infrared touch panel shown in Figure 2;
Fig. 4 is the synoptic diagram of another kind of set-up mode of the infrared beam of infrared touch panel shown in Figure 2;
Fig. 5 is the structural representation of a kind of embodiment of light beam decollator among Fig. 2;
Fig. 6 is the schematic perspective view of light beam decollator shown in Figure 5 when using;
Fig. 7 is the another kind of structural drawing of light beam decollator shown in Figure 5;
Fig. 8 is the third kind structural drawing of light beam decollator shown in Figure 5;
Fig. 9 is the 4th a kind of structural drawing of light beam decollator shown in Figure 5;
Figure 10 is the three-dimensional structure diagram of the another kind of embodiment of light beam decollator among Fig. 2;
Floor map when Figure 11 is the application of light beam decollator shown in Figure 10;
Figure 12 is the structural representation of a kind of prioritization scheme of the described infrared touch panel of the utility model embodiment;
Figure 13 is the structural representation of the another kind of prioritization scheme of the described infrared touch panel of the utility model embodiment;
Figure 14 is the process flow diagram that is used for the touch localization method of the described infrared touch panel of the utility model embodiment; And
Figure 15 is that reference with the formula that calculates the touch objects position coordinates is schemed in the touch localization method shown in Figure 14.
Embodiment
The utility model will be further described below in conjunction with specification drawings and specific embodiments.
To begin the detailed description of embodiment of the present utility model below, according to corresponding description of drawings embodiment, wherein identical in the whole text Reference numeral refers to components identical.To pass below with reference to description of drawings embodiment to explain the utility model.
Although known part or element are important to the utility model, will not illustrate or brief description below, as the annexation between the inside important structure assembly of infrared touch panel etc., only at length feature structure of the present utility model is described.
Be illustrated in figure 2 as the structural representation of a kind of embodiment of infrared touch panel described in the utility model, this infrared touch panel comprises one group of infrared transmitting tube 101, one group of infrared receiving tube 102, touch surveyed area 103, framework 104 and light beam decollator 105, one group of infrared transmitting tube 101 is relative with one group of infrared receiving tube 102 position, light beam decollator 105 is installed in infrared transmitting tube 101 the place aheads, the infrared light 106 that each infrared transmitting tube 101 is launched generates at least one infrared beam 107 after light beam decollator 105 is handled, infrared beam 107 passes touch surveyed area 103 from least one direction and is received by at least one infrared receiving tube 102, all infrared beams 107 are touching the infrared beam array (or being called the infrared beam grid) that surveyed area 103 has formed intersection, promptly in the utility model, the light that each infrared transmitting tube 101 sent is finally received by at least one infrared receiving tube 102 behind light beam decollator 105, that is to say, in the utility model, the light that infrared transmitting tube 101 sent that has finally may be received by an infrared receiving tube 102 behind light beam decollator 105, and the light that infrared transmitting tube 101 sent that has finally may be received by two or more infrared receiving tube 102 behind light beam decollator 105.When touch objects (as user's finger, writing pencil etc.) 105 is touching strikings in the surveyed area 103, will block at least two infrared beams 107, and every infrared beam 107 pairing infrared transmitting tubes 101 are fixed with the position of infrared receiving tube 102, according to the similar triangles theorem, be easy to just to calculate the position of the intersection point of the different infrared beam that is blocked 107 of any two slopes, the position of this intersection point is the position of touch objects 100.The infrared touch panel of this structure only needs one group of infrared transmitting tube and one group of infrared receiving tube just can realize touching the location, has reduced the quantity of electronic component greatly, not only simplifies the structure but also reduced production cost.107 infrared light arrays that need construct the intersection of abundant intersection point in touching surveyed area 103 of infrared beam in this infrared touch panel get final product, and being provided with of infrared beam 107 can be unordered intersection infrared array, specifically can be with reference to Fig. 3; The distribution of infrared beam 107 also can be arranged to orderly, for example, infrared beam 107 can be arranged to two groups of parallel infrared beams 107 and this two groups of parallel infrared beams 107 intersect in twos, infrared beam 107 in the infrared touch panel shown in Figure 2 is exactly a kind of situation in this setup, also in actual applications this setup that adopt more, design is beneficial to the assembling in enormous quantities of infrared touch panel like this, reduces the accuracy of detection reduction that is caused because of infrared transmitting tube and infrared receiving tube setting angle deviation.In order further to optimize this setup, can make two groups of parallel infrared beams 107 identical with same the formed angle of the leg of frame, Fig. 4 just is a kind of situation in this kind situation, the angle of the first parallel infrared beam 401 and first leg of frame 1041 is α, the angle of the second parallel infrared beam 402 and first leg of frame 1041 is β, α=β.This symmetrical structure is more convenient for installing, and improves the accuracy of detection of infrared touch panel.Equally also can make each infrared transmitting tube 101 corresponding four, five or more a plurality of infrared receiving tube, no longer be figure here and specifically describe.In actual applications, be the large scale infrared touch panel as this infrared touch panel, then infrared transmitting tube 101 generally is installed on the long leg of frame of two length with infrared receiving tube 102; As this infrared touch panel is the small size infrared touch panel, and then infrared transmitting tube 101 generally is installed on the short leg of frame of two length with infrared receiving tube 102.These two kinds of mounting meanss are guaranteeing to have reduced cost as much as possible under the accuracy of detection ground condition, because of its mounting means is simple, so no longer mapping is described.In actual applications, framework is not essential, in some cases, can not have yet.
Be illustrated in figure 5 as the structural representation of a kind of embodiment of light beam decollator among Fig. 2, this light beam decollator 105 can be made of a handkerchief polymer material (as organic glass), antetheca 501 along beam divergence device 105 has a row/group deflection generating device 502, each deflection generating device 502 is the wedge-shaped slots that are made of first inclined-plane 503 and second inclined-plane 504, when the infrared light 106 that infrared transmitting tube 101 is launched is injected deflection generating device 502, refraction for the first time takes place in infrared light 106 contact first inclined-planes 503 and second inclined-plane 504, contact rear wall 505 afterwards refraction for the second time takes place, thereby make infrared light 106 be dispersed into first infrared beam 1071 and second infrared beam 1072 of different angles, reached the effect of dispersed light beam by this light beam decollator 105.Simultaneously, can be with reference to Fig. 6, Fig. 6 is the three-dimensional demonstration graph of light beam decollator when using.In actual applications, by changing the shape of deflection generating device 502, can change the emission angle and the quantity of being divided the infrared beam that sheds by it, as shown in Figure 7, make first inclined-plane 503 in the deflection generating device 502 and the vergence direction symmetry on second inclined-plane 504, infrared light 106 can be separated into by it+first infrared beams 1071 of 45 degree and second infrared beams 1072 of-45 degree; As shown in Figure 8, dwindle the opening of deflection generating device 502, the part infrared light contacts first inclined-plane 503 and second inclined-plane 504, and refraction for the first time takes place, and contacts rear wall 505 afterwards refraction for the second time takes place.The part infrared light vertically contacts antetheca 501 and rear wall 505, does not deflect.Promptly this light beam decollator 105 is dispersed into first infrared beam 1071 of positive-angle, second infrared beam 1072 and 0 degree the 3rd infrared beam 1073 of negative angle with infrared light 106; As shown in Figure 9, make second inclined-plane 504 be 0 the degree, then refraction for the first time takes place on contact first inclined-plane 503 in infrared light 106, contact rear wall 505 afterwards and take place for the second time that the refraction back forms a positive-angle infrared beam 107, more than all angles be angle with infrared light 106 transmission directions.
As Figure 10 and the structural drawing that Figure 11 shows that the another kind of embodiment of light beam decollator among Fig. 2, in Figure 10, the light beam decollator is non-focusing concavees lens 1001, and the front surface 1002 of non-focusing concavees lens 1001 is made up of a large amount of little flat incline planes 1003.Infrared transmitter 101 among Figure 11 is the wide-angle infrared transmitter, its infrared light of launching 106 passes back of the body surface 1101 and enters non-focusing concavees lens 1001, non-focusing concavees lens 1001 diverge to first infrared beam 1071 and second light beam 1072 with infrared light 106, have reached the effect of dispersed light beam.
Be the structural representation of a kind of prioritization scheme of the described infrared touch panel of the utility model embodiment as shown in figure 12, the infrared beam 107 that the infrared transmitting tube 1012 of two end portions is launched in this prioritization scheme can be received with infrared receiving tube 1026 by infrared receiving tube 1024, infrared receiving tube 1025.Compare the more of the infrared beam 107 located in leg of frame zone 1201 (dashed region) with infrared touch panel shown in Figure 2 through the infrared touch panel of this prioritization scheme optimization, infrared grid in leg of frame zone 1201 is also more intensive, thereby has improved the accuracy of detection at 1201 places, leg of frame zone.
Be the structural representation to the another kind of prioritization scheme of the described infrared touch panel of the utility model embodiment as shown in figure 13, four legs of frame that constitute framework 104 are respectively first leg of frame 1041, second leg of frame 1042, the 3rd leg of frame 1043 and the 4th leg of frame 1044.Infrared transmitting tube 101 is installed in (infrared transmitting tube 101 also can be installed in respectively in second leg of frame 1042 and the 4th leg of frame 1044 with infrared receiving tube 102) in first leg of frame 1041 and the 3rd leg of frame 1043 respectively with infrared receiving tube 102.In order further to improve the accuracy of detection at 1201 places, leg of frame zone, the installation site of the infrared receiving tube 102 of the two end portions in the infrared transmitting tube 101 of the two end portions in one group of infrared transmitting tube 101 and the one group of infrared receiving tube 102 can be positioned at outside the touch surveyed area 103.Just the infrared transmitting tube 1013 with the place, two ends is installed in second leg of frame 1042 with infrared receiving tube 1027, and infrared transmitting tube 1014 and infrared receiving tube 1028 are installed in the 4th leg of frame 1044.This structural adjustment former leg of frame zone 1201 that accuracy of detection is low moves to second leg of frame 1042 and the 4th leg of frame 1044 inside, has improved the accuracy of detection that touches surveyed area 103.
Be the process flow diagram that is used for the touch localization method of the described touch-screen of the utility model embodiment as shown in figure 14, this touch localization method may further comprise the steps:
Enter step 1401, start infrared touch panel, successively all default infrared beams of gating.
In step 1401, the infrared beam between all infrared transmitting tubes of gating and its pairing infraluminescence pipe has formed the infrared light array (or being called as the infrared light grid) that intersects in touching surveyed area successively.
Infrared touch panel is as shown in Figure 2 carried out this step, and wherein infrared transmitting tube 101 is numbered i
1, i
2, i
3... i
n, infrared receiving tube 102 be numbered r
1, r
2, r
3... r
n, gating infrared beam i successively
1r
p, i
2r
P+1, i
3r
P+2... .i
N+1-pr
n, i
qr
1, i
Q+1r
2, i
Q+2r
3... i
nr
N+1-q, in touching surveyed area, formed the infrared light array that intersects.Wherein, n, p, q are natural number and p＜n, q＜n.
Enter step 1402, judged whether that infrared beam is blocked, be blocked, then return step 1401 as no infrared beam; Be blocked if any infrared beam, then write down the infrared beam that this is blocked.
In step 1402, be blocked as no infrared beam, then illustrate in touching surveyed area not have touch objects, then return step 1401, all infrared beams of gating successively detect whole touch surveyed area again; Be blocked if any infrared beam, then illustrate in touching surveyed area to have touch objects, then the pairing infrared transmitting tube of infrared beam that is blocked of record and the coordinate of infrared receiving tube;
Infrared touch panel is as shown in Figure 2 carried out this step, as infrared touch panel at gating infrared beam i successively
1r
p, i
2r
P+1, i
3r
P+2... i
N+1-pr
n, i
qr
1, i
Q+1r
2, i
Q+2r
3... i
nr
N+1-qThe time do not have infrared beam to be blocked, then return step 1401; As infrared beam i
3r
P+2, i
Q+4r
5Be blocked, then write down infrared beam i
3r
P+2, i
Q+4r
5Pairing infrared transmitting tube i
3, i
Q+4, infrared receiving tube r
P+2, r
5Coordinate.
Enter step 1403, calculate the coordinate of the intersection point between the infrared beam be blocked, the coordinate of this intersection point is the coordinate of touch objects, and coordinate data is delivered in the computing machine handle.
With reference to Figure 15, in step 1403, choose any two infrared beam AC, BD that are blocked in the infrared beam that is blocked that from step 1401, is obtained, wherein, the intrinsic coordinates of the pairing infrared transmitting tube A of infrared beam AC that is blocked is (m, a), the intrinsic coordinates of pairing infrared receiving tube C be (n, c); The intrinsic coordinates of the pairing infrared transmitting tube B of infrared beam BD that is blocked for (m, b), the intrinsic coordinates of pairing infrared receiving tube D be (n, d).Need to satisfy c-a ≠ d-b simultaneously, promptly AC and BD intersect.With A (m, a), C (n, c), B (m, b), (n d) brings the coordinate substitution formula of formula with pairing infrared transmitting tube of the resulting infrared beam that is blocked and infrared receiving tube in the step into to D
Just can calculate the infrared beam AC that is blocked and the intersection point O between the BD intrinsic coordinates (x, y).In order to reduce calculated amount, improve response speed, can make m=0.The straight line that is the infrared transmitting tube place is configured to the y axle.With the n=h in the seasonal formula, h is the spacing between infrared transmitting tube place straight line and the infrared receiving tube place straight line.Thereby this simplified formula is
Then with the coordinate data of the intersection point O that calculates just the coordinate data of touch objects (x y) delivers in the computing machine and handles, and touch operation is made response.
Infrared touch panel is carried out this step as shown in Figure 2, with infrared transmitting tube i
3(0,3), i
Q+4(0, q+4), with infrared receiving tube r
P+2(h, p+2), r
5The coordinate of (h, 5) is brought formula into
Calculate
Then with this coordinate
Deliver in the computing machine and handle, and touch operation is made response.
Although embodiment of the present utility model has been made comparatively detailed explanation and description, but those skilled in the art should understand under the situation that does not break away from the utility model spirit and principle and can change these embodiments that its scope definition in the claims.
Claims (9)
1. infrared touch panel, comprise infrared transmitting tube, infrared receiving tube, touch surveyed area, it is characterized in that: it is relative with described one group of infrared receiving tube position with one group of infrared receiving tube and described one group of infrared transmitting tube that described infrared touch panel only includes one group of infrared transmitting tube, described infrared touch panel also includes the light beam decollator, and described light beam decollator is installed near the infrared transmitting tube; The infrared light that each infrared transmitting tube is launched generates at least one infrared beam after the light beam decollator is handled, pass the touch surveyed area from least one direction, is received by at least one infrared receiving tube; All infrared beams are touching the infrared beam array that surveyed area has formed intersection.
2. infrared touch panel as claimed in claim 1 is characterized in that: described touch-screen also includes framework, and described infraluminescence pipe and infrared receiving tube are installed in respectively on two long legs of frame.
3. infrared touch panel as claimed in claim 1 is characterized in that: described touch-screen also includes framework, and described infraluminescence pipe and infrared receiving tube are installed in respectively on two short legs of frame.
4. infrared touch panel as claimed in claim 1 is characterized in that: described light beam decollator is the handkerchief polymer material, is provided with the deflection generating device on a face of described handkerchief polymer material.
5. infrared touch panel as claimed in claim 4 is characterized in that: described deflection generating device is a wedge-shaped slot.
6. infrared touch panel as claimed in claim 1 is characterized in that: described light beam decollator is the non-focusing concavees lens.
7. as the described infrared touch panel of one of claim 1 to 6, it is characterized in that: the infrared light that each infrared transmitting tube of the two end portions in described one group of infrared transmitting tube is launched generates at least two infrared beams after described light beam decollator is handled, pass the touch surveyed area from both direction at least, received by at least two infrared receiving tubes.
8. infrared touch panel as claimed in claim 7 is characterized in that: the installation site of the infrared receiving tube of the two end portions in the infrared transmitting tube of the two end portions in described one group of infrared transmitting tube and the described one group of infrared receiving tube is positioned at outside the described touch surveyed area.
9. as the described infrared touch panel of one of claim 1 to 6, it is characterized in that: the installation site of the infrared receiving tube of the two end portions in the infrared transmitting tube of the two end portions in described one group of infrared transmitting tube and the described one group of infrared receiving tube is positioned at outside the described touch surveyed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202196355U CN201773381U (en) | 2009-10-30 | 2009-10-30 | Infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202196355U CN201773381U (en) | 2009-10-30 | 2009-10-30 | Infrared touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773381U true CN201773381U (en) | 2011-03-23 |
Family
ID=43753223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202196355U Expired - Fee Related CN201773381U (en) | 2009-10-30 | 2009-10-30 | Infrared touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773381U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019460A (en) * | 2011-09-28 | 2013-04-03 | 程抒一 | Bilateral combined touch screen |
| CN104503634A (en) * | 2014-12-02 | 2015-04-08 | 昆山国显光电有限公司 | Infrared touch control device and method |
| CN114168010A (en) * | 2021-12-06 | 2022-03-11 | 深圳市佳锐拓科技有限公司 | Reflective infrared touch screen |
-
2009
- 2009-10-30 CN CN2009202196355U patent/CN201773381U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019460A (en) * | 2011-09-28 | 2013-04-03 | 程抒一 | Bilateral combined touch screen |
| CN103019460B (en) * | 2011-09-28 | 2017-03-01 | 上海优熠电子科技有限公司 | Bilateral combination type touch screen |
| CN104503634A (en) * | 2014-12-02 | 2015-04-08 | 昆山国显光电有限公司 | Infrared touch control device and method |
| CN104503634B (en) * | 2014-12-02 | 2018-07-24 | 昆山国显光电有限公司 | A kind of infrared touch control device and method |
| CN114168010A (en) * | 2021-12-06 | 2022-03-11 | 深圳市佳锐拓科技有限公司 | Reflective infrared touch screen |
| CN114168010B (en) * | 2021-12-06 | 2024-03-15 | 深圳市佳锐拓科技有限公司 | Reflective infrared touch screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangzhou Hua Xin Electronic Science and Technology Co., Ltd. Assignor: Beijing UNITOP New Technology Co., Ltd. Contract record no.: 2014990000925 Denomination of utility model: Identification method of multi-touch of infrared touch screen Granted publication date: 20110323 License type: Common License Record date: 20141212 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Guangzhou Hua Xin Electronic Science and Technology Co., Ltd. Assignor: Beijing UNITOP New Technology Co., Ltd. Contract record no.: 2014990000925 Date of cancellation: 20160831 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing UNITOP New Technology Co., Ltd. Document name: Notification to Pay the Fees |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20181030 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Tang Haibo Document name: Notification of Termination of Patent Right |