CN201853216U - True coordinate detection device of multiple touch points - Google Patents
True coordinate detection device of multiple touch points Download PDFInfo
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- CN201853216U CN201853216U CN2010206131051U CN201020613105U CN201853216U CN 201853216 U CN201853216 U CN 201853216U CN 2010206131051 U CN2010206131051 U CN 2010206131051U CN 201020613105 U CN201020613105 U CN 201020613105U CN 201853216 U CN201853216 U CN 201853216U
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Abstract
The utility model provides a true coordinate detection device of multiple touch points, which comprises electrodes for detecting the original coordinates of the multiple touch points, and a scanning circuit connected with the electrodes, wherein the scanning circuit comprises a full scanning circuit and a sub-area scanning circuit, and the full scanning circuit is used for fully scanning the electrodes to obtain the original coordinates of the multiple touch points; and the sub-area scanning circuit is used for the sub-area scanning of the electrodes to determine the true coordinates of the multiple touch points in the original coordinates. The true coordinate detection device of the multiple touch points solves the problem of false coordinates encountered when the coordinates of the multiple touch points are detected by the traditional touch detection device so as to determine the true coordinates of the multiple touch points.
Description
Technical field
The utility model relates to a kind of touch point arrangement for detecting, particularly relates to a kind of arrangement for detecting that is used for judging from the original coordinates of multiple touch points true coordinates.
Background technology
At present, by the touch of finger and so on touch-control object, directly the technology that electronic equipment is operated has been widely used in routine work and the life.These electronic equipments generally adopt the touch point arrangement for detecting to come the touch sensitive action and produce corresponding electric signal for subsequent operation.Described touch point arrangement for detecting often shows as forms such as Trackpad, touch screen in actual production or in using.
According to the difference of touch-control principle, the touch point arrangement for detecting mainly is divided into resistance-type, condenser type, optical profile type, electromagnetic type, sound wave type etc.Wherein the principle of work of capacitance touch point arrangement for detecting is: with conductive touch-control object touching device surfaces such as finger or induction pens, the position that causes apparatus surface to be touched produces change in voltage by the user; Microprocessor detects the coordinate of touch point according to this change in voltage, to reach the purpose of touch control operation.
In order to cooperate different electronic equipments, the dealer develops various capacitance touch point arrangement for detecting, and projected capacitive touch point arrangement for detecting is exactly wherein a kind of.Shown in Fig. 1 a, 1b, traditional a kind of latticed projected capacitive touch point arrangement for detecting 1 that is comprises first electrode 2 that is positioned at first direction, second electrode 3, insulation course 4, substrate 5, some leads 6 and the processor 7 that is positioned at second direction.Wherein, first electrode 2 and second electrode, 3 interlaced being distributed on the substrate 5, and separate with insulation course 4.Processor 7 is connected to two arrays of electrodes 2,3 via some leads 6.When conductive touch-control object touching device 1 surface, all can produce self-capacitance between every group of electrode and the touch-control object and change, this self-capacitance changes and can be come out by processor 7 detectings.The barycenter that self-capacitance changes on every group of electrode is represented the position of touch point on each electrode direction, and the coordinate of touch point is drawn by the mutual calculated crosswise of the barycenter on the two arrays of electrodes direction.Therefore, traditional method for detecting step is: a) scan two arrays of electrodes respectively; B) resolve the touch point barycenter that self-capacitance changes on the two arrays of electrodes direction; C) go out the coordinate of touch point by described centroid calculation.
When at least two touch points appear in touch point arrangement for detecting surface simultaneously, with two touch point G, H is an example, as shown in Figure 2, will parse the barycenter that two self-capacitances change on every group of electrode direction, be barycenter 8a on the first direction, barycenter 9a on 8b and the second direction, 9b by described two groups of mutual cross-over configuration of barycenter, calculates four original coordinates G (8a, 9a), G ' (8a, 9b), H ' (8b, 9a), H (8b, 9b), true coordinates G (the 8a that wherein to have only two coordinates be the touch point, 9a), H (8b, 9b), two other is fase corrdinate the G ' (8a of touch point, 9b), H ' (8b, 9a).This shows, when using traditional projected capacitive touch point arrangement for detecting and method for detecting thereof to detect 2 touch points, just inevitably produce the fase corrdinate of touch point, the application of contact panel is restricted.Therefore, how in two touch points of detecting, to calculate the true coordinates of touch point at least, reject fase corrdinate, just become the problem that projected capacitive touch point arrangement for detecting and method for detecting need solve.
The utility model content
In view of this, be necessary to provide a kind of true coordinates arrangement for detecting of multiple touch points,, can reject fase corrdinate, accurately judge the true coordinates of touch point with when detecting a plurality of touch point.
A kind of true coordinates arrangement for detecting of multiple touch points, comprise the electrode of the original coordinates that is used to detect described multiple touch points and the sweep circuit that is connected in described electrode, it is characterized in that, described sweep circuit comprises and being used for the full scan circuit of described electrode full scan with the original coordinates that obtains described multiple touch points, and is used for the subarea-scanning circuit of described electrode subarea-scanning with the true coordinates of judging multiple touch points described in the described original coordinates.
Adopt the true coordinates arrangement for detecting of above-mentioned multiple touch points, can overcome traditional touch point arrangement for detecting when a plurality of touch point of detecting, run into the fase corrdinate problem of touch point, accurately judge the true coordinates of touch point.Simultaneously,, therefore, can improve the sweep velocity of contact panel, also can reduce the decay that causes when touching signals transmits on electrode because each electrode comprises two parts electrode.
Description of drawings
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
Fig. 1 a is the structural representation of traditional projected capacitive touch point arrangement for detecting.
Fig. 1 b is the diagrammatic cross-section of the traditional projected capacitive touch point arrangement for detecting shown in Fig. 1 a along the A-A line.
Synoptic diagram when Fig. 2 is 2 touches of traditional projected capacitive touch point arrangement for detecting surface generation.
The planar structure synoptic diagram of first embodiment of the true coordinates arrangement for detecting of the multiple touch points that Fig. 3 a provides for the utility model.
Fig. 3 b is the diagrammatic cross-section of the true coordinates arrangement for detecting of the multiple touch points shown in Fig. 3 a.
The planar structure synoptic diagram of second embodiment of the true coordinates arrangement for detecting of the multiple touch points that Fig. 4 a provides for the utility model.
Fig. 4 b is the diagrammatic cross-section of the true coordinates arrangement for detecting of the multiple touch points shown in Fig. 4 a.
The process flow diagram of first embodiment of the true coordinates method for detecting of the multiple touch points that Fig. 5 provides for the utility model.
Fig. 6 a-6c is the step synoptic diagram of the true coordinates method for detecting when two touch points are created in the adjacent electrode zone.
Fig. 7 a-7b is the step synoptic diagram of the true coordinates method for detecting when two touch points are created in the comparative electrode zone.
Fig. 8 is for being created in the adjacent electrode zone when two touch points, and the step synoptic diagram of the true coordinates method for detecting on same first electrode the time.
The process flow diagram of second embodiment of the true coordinates method for detecting of the multiple touch points that Fig. 9 provides for the utility model.
Embodiment
Shown in Fig. 3 a, 3b, the true coordinates arrangement for detecting 100 of the multiple touch points of the utility model first embodiment comprises substrate 110, be distributed in a plurality of first electrodes 120 of first direction X, be distributed in a plurality of second electrodes 130, insulation course 140, the processor 150 of second direction Y, and some leads 170.First electrode 120 is arranged at substrate 110 surfaces.Wherein, first direction X and second direction Y do not overlap, and first electrode 120 and second electrode 130 are arranged at the both sides of insulation course 140, and interlacedly are latticed, form a plurality of electrode crossing place simultaneously.Insulation course 140 is the plane continuous structure, makes first electrode 120 and second electrode, 130 mutually insulateds.Wherein, first electrode 120 is divided into the first first electrode 121 spaced apart from each other and the first second electrode 122 on first direction X; Second electrode 130 is divided into the second first electrode 131 spaced apart from each other and the second second electrode 132 on second direction Y.The first first electrode 121 and the second first electrode, 131 interlaced zone definitions are electrode zone Q1; The first second electrode 122 and the second first electrode, 131 interlaced zone definitions are electrode zone Q2; The first first electrode 121 and the second second electrode, 132 interlaced zone definitions are electrode zone Q 3; The first second electrode 122 and the second second electrode, 132 interlaced zone definitions are electrode zone Q4.Each first first electrode 121 is by lead 170, be connected to processor 150 via switch 161, in like manner, each first second electrode 122 is by lead 170, be connected to processor 150 via switch 162, each second first electrode 131 is connected to processor 150 by lead 170 via switch 163, each second second electrode 132 is connected to processor 150 by lead 170 via switch 164.Arrangement for detecting 100 also comprises sweep circuit (figure does not show), comprises full scan circuit and subarea-scanning circuit, is used for two kinds of different sweep circuits first electrode and second electrode being advanced scanning when arrangement for detecting 100 is carried out the detecting multiple touch points.Above-mentioned sweep circuit also comprises a plurality of switches 161,162,163,164, is used for assisting the switching between the subarea-scanning circuit that carries out the full scan circuit.
Sweep circuit can be controlled the folding of all switches 161,162,163,164, to switch full scan electricity circuit and subarea-scanning circuit.When all switches 161,162,163,164 are all closed, then the first first electrode 121 and the first second electrode 122 show as the overall electrode structure, i.e. first electrode 120, in like manner, the second first electrode 131 and the second second electrode 132 show as the overall electrode structure, promptly second electrode 130 switches to the full scan circuit at this moment, and first electrode 120 and second electrode 130 are carried out full scan.When switch 161 closures, the first first electrode 121 that then connects switch 161 is connected to processor 150, and switch to the subarea-scanning circuit this moment, and the first first electrode 121 is carried out subarea-scanning.In like manner, when switch 162, switch 163 and switch 164 are closed respectively, switch to the subarea-scanning circuit, respectively the first second electrode, the second first electrode and the second second electrode are carried out subarea-scanning.
Need according to different designs, the first first electrode 121 and the first second electrode 122 can be symmetrical, and the second first electrode 131 and the second second electrode 132 can be symmetrical, and therefore four electrode zone Q 1, Q 2, Q 3 and Q4 are symmetrical; On the contrary, the first first electrode 121 and the first second electrode 122 also can be asymmetric mutually, and the second first electrode 131 and the second second electrode 132 also can be asymmetric mutually, and then four electrode zone Q1, Q2, Q 3 and Q4 are asymmetric mutually.
Be depicted as the true coordinates arrangement for detecting 200 of the multiple touch points of the utility model second embodiment as Fig. 4 a, 4b, similar with first embodiment, comprise: substrate 210, be distributed in first direction X a plurality of first electrodes 220, be distributed in a plurality of second electrodes 230, a plurality of insulating trip 240, processor 250, a plurality of switch 261,262,263,264 of second direction Y and some leads 270.Difference is that all electrodes all are distributed in substrate 210 same surfaces.For making the electrode mutually insulated of different directions, between first electrode 220 at electrode crossing place and second electrode 230, a plurality of insulating trips 240 are set, promptly a plurality of insulating trips 240 are set, and make second electrode 230 be across a plurality of insulating trips 240 surfaces on first electrode, 220 surfaces at electrode crossing place.Wherein, first electrode 220 is divided into the first first electrode 221 spaced apart from each other and the first second electrode 222 on first direction X; Second electrode 230 is divided into the second first electrode 231 spaced apart from each other and the second second electrode 232 on Y on the second direction.The position of other elements is provided with first embodiment in the arrangement for detecting of second embodiment.
Electrode shape is not limited only to strip in the true coordinates arrangement for detecting of the multiple touch points that the utility model provides, and can also be the combination of other shapes or shape.
Each element can be made by transparent material according to the actual needs difference in the true coordinates arrangement for detecting of the multiple touch points that the utility model provides, and also can be made by opaque material.For example, when touch-control figure when being opaque, can be applicable to the touch control operation panel of equipment such as notebook computer; When touch-control figure when being transparent, the touch control operation screen is made on the surface that can be applicable to light-emitting display apparatus such as display.
First electrode and second electrode comprise at least two strip electrodes respectively in a plurality of touch points arrangement for detecting that the utility model provides, and wherein electrode number is decided by the resolution and the size of applied arrangement for detecting.The General Analytical degree requires high more, and promptly pixel request is more little, and electrode number is many more; Size is big more, and electrode number is also many more.
When the surface of the true coordinates arrangement for detecting of the multiple touch points that provides when the utility model produces at least two touch points simultaneously, can obtain the true coordinates of at least two touch points by the true coordinates method for detecting flow process of multiple touch points shown in Figure 5.Detecting with two touch points is an example, shown in Fig. 6 a-6c, when the arrangement for detecting surface produces two touch point A simultaneously, B, and two touch point A, B is created in simultaneously by a plurality of first first electrodes, a plurality of first second electrodes and described a plurality of second first electrode, when two adjacent electrode zones are interior in interlaced defined four electrode zones of a plurality of second second electrodes, after initial step 10, execution in step 11, closed all switches, sweep circuit switches to the full scan circuit, and first electrode that is positioned at first direction X and second electrode that is positioned at second direction Y are carried out full scan.By scanning, detect touch point A, B and produce self-capacitance respectively and between first electrode and second electrode and change, and the data transmission that this self-capacitance is changed is to processor.
Enter step 12, processor is according to the data that self-capacitance changes, the barycenter y1, the y2 that parse barycenter x1, x2 that touch point A, B change at the self-capacitance of directions X and change at the self-capacitance of Y direction.Simultaneously, according to the position of the second first electrode 131 and the second second electrode 132, processor can be told barycenter y1 on the second first electrode 131, and barycenter y2 is on the second second electrode 132.The mutual cross-matched of barycenter on the both direction, calculate the touch point original coordinates a (x1, y1), b (x2, y2), a ' (x1, y2), b ' (x2, y1), shown in Fig. 6 a.
Enter determining step 13, processor judges whether only to parse a barycenter on wherein any one direction of directions X and Y direction, if judged result then enters step 14 for not, processor is divided into one group with two relative original coordinates branches, then form two groups of original coordinates, be a (x1, y1), b (x2, y2) and a ' (x1, y2), b ' (x2, y1).Because the existence of fase corrdinate in these two groups of original coordinates, necessarily has one group to be true coordinates, and other one group be fase corrdinate.
Enter step 15, the closed switch that connects a plurality of first first electrodes carries out subarea-scanning with the subarea-scanning circuit to a plurality of first first electrodes, shown in Fig. 6 b.
Enter determining step 16, processor judges whether only to detect the barycenter of the self-capacitance variation that parses in the step 12 on the first first electrode, if whether judged result, then enter step 17, the closed switch that connects a plurality of second first electrodes, with the subarea-scanning circuit a plurality of second first electrodes are carried out subarea-scanning, shown in Fig. 6 c.By scanning, detect the barycenter x1 of the self-capacitance variation that parses in the step 12.Because the barycenter y1 that the self-capacitance on the Y direction changes is on the second first electrode, then (x1 y1) is the true coordinates of touch point A to original coordinates a.Therefore, two groups of original coordinates a of the touch point that draws in the step 14 (x1, y1), b (x2, y2) and a ' (x1, y2), b ' (x2, y1) in, comprise this true coordinates a (x1, one group of original coordinates a y1) (x1, y1), (x2 y2) is the true coordinates of touch point A, B to b.Enter step 18, processor output true coordinates.
As Fig. 7 a, shown in the 7b, when the arrangement for detecting surface that the utility model provides produces two touch point C simultaneously, D, and be created in simultaneously by a plurality of first first electrodes, in a plurality of first second electrodes and described a plurality of second first electrode and interlaced defined four electrode zones of a plurality of second second electrode in two electrode of opposite zones the time, in the true coordinates method for detecting flow process of multiple touch points then shown in Figure 5, the judged result of determining step 16 is for being, the barycenter y3 that changes of the self-capacitance that on the first first electrode, detects of step 15 then, (x3 y3) is the true coordinates of touch point C to the original coordinates c that the barycenter x3 that changes with the directions X self-capacitance forms.Therefore, two groups of original coordinates c (x3, y3), d (x4, y4) and c ' (x3, y4), d ' (x4, y3) in, comprise this true coordinates c (x3, one group of original coordinates c y3) (x3, y3), (x4 y4) is the true coordinates of touch point C, D to d.Enter step 18, processor output true coordinates.
As shown in Figure 8, when the arrangement for detecting surface that the utility model provides produces two touch point E simultaneously, F, and be created in simultaneously by a plurality of first first electrodes, in a plurality of first second electrodes and described a plurality of second first electrode and interlaced defined four electrode zones of a plurality of second second electrode in two adjacent electrode zones, and when laying respectively on the first first electrode of same first electrode and the first second electrode, in the true coordinates method for detecting flow process of multiple touch points as shown in Figure 5, the judged result of determining step 13 is for being, represent then that processor only parses a barycenter y5 in the step 12 on the Y direction, and only calculate the original coordinates e (x5 of two touch points, y5), f (x6, y5).Therefore, this original coordinates is the true coordinates of touch point E, F.Directly enter step 18, the true coordinates e of processor output two touch point E, F (x5, y5), f (x6, y5).
The true coordinates of step 18 output can export an opertaing device among Fig. 5, also can export a display device etc. to, and in order to carry out follow-up related procedure, the utility model does not limit to the receiving end of this true coordinates with in order to the related procedure of carrying out.
Difference according to the method for detecting flow process is provided with demand, in the step 15, can the closed switch that connects a plurality of first second electrodes, and with the subarea-scanning circuit a plurality of first second electrodes are carried out subarea-scanning.In the step 17, can the closed switch that connects a plurality of second second electrodes, with the subarea-scanning circuit a plurality of second second electrodes are carried out subarea-scanning.
Be example with two touch points equally, the method for detecting that the utility model provides can also carry out according to flow process shown in Figure 9, wherein step 20 is in full accord to step 13 with step 10 in the flow process shown in Figure 5 to step 23, difference is, when the judged result of step 23 for not the time, processor does not divide into groups to original coordinates, directly enter step 24, sweep circuit switches to the subarea-scanning circuit, respectively the first first electrode, the first second electrode, the second first electrode and the second second electrode is carried out subarea-scanning according to random order; Enter step 25 then, directly judge the true coordinates of two touch points, and then export true coordinates according to the subarea-scanning result.
Above-mentioned processor comprises scanning element, computing unit, judging unit and output unit.Wherein, scanning element is used to provide sweep signal to each circuit, receives the electric signal that produces in the scanning process simultaneously, the signal that for example above-mentioned self-capacitance changes; Computing unit is carried out and is calculated barycenter and the original coordinates that self-capacitance changes; Judging unit is made judgement, for example, whether only parses the barycenter that self-capacitance that a computing unit calculates changes on certain direction; Input block then is that the true coordinates that will finally judge exports the unit of carrying out next step operation to.
The true coordinates method for detecting of above-mentioned multiple touch points can also apply to detect the embodiment surface of the arrangement for detecting that the utility model provides, when producing plural touch point simultaneously, earlier first electrode and second electrode are carried out full scan, calculate the original coordinates of touch point with the full scan circuit; Respectively the first first electrode, the first second electrode, the second first electrode or the second second electrode are carried out subarea-scanning with the subarea-scanning circuit again, judge the true coordinates of touch point in the original coordinates.
The above, it only is the utility model preferred embodiment, so can not limit scope of the present utility model with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (19)
1. the true coordinates arrangement for detecting of a multiple touch points, comprise the electrode of the original coordinates that is used to detect described multiple touch points and the sweep circuit that is connected in described electrode, it is characterized in that, described sweep circuit comprises and being used for the full scan circuit of described electrode full scan with the original coordinates that obtains described multiple touch points, and is used for the subarea-scanning circuit of described electrode subarea-scanning with the true coordinates of judging multiple touch points described in the described original coordinates.
2. arrangement for detecting according to claim 1 is characterized in that, described electrode comprises first electrode that is distributed in first direction and second electrode that is distributed in second direction.
3. arrangement for detecting according to claim 2 is characterized in that, described first electrode is divided into the first first electrode and the first second electrode on described first direction; Described second electrode is divided into the second first electrode and the second second electrode on described second direction.
4. arrangement for detecting according to claim 3 is characterized in that, is spaced from each other between described first first electrode and the described first second electrode, is spaced from each other between described second first electrode and the described second second electrode.
5. arrangement for detecting according to claim 3 is characterized in that, the described first first electrode, the described first second electrode and the described second first electrode and the described second second electrode interlaced formation a plurality of electrode crossing place and four electrode zones.
6. arrangement for detecting according to claim 3 is characterized in that, described first first electrode and the described first second electrode are symmetrical, and described second first electrode and the described second second electrode are symmetrical.
7. arrangement for detecting according to claim 5 is characterized in that, described four electrode zones are symmetrical.
8. arrangement for detecting according to claim 3 is characterized in that, described first first electrode and the described first second electrode are asymmetric, and described second first electrode and the described second second electrode are asymmetric.
9. arrangement for detecting according to claim 5 is characterized in that, described four electrode zones are asymmetric.
10. arrangement for detecting according to claim 3 is characterized in that, the described first first electrode, the described first second electrode, the described second first electrode and the described second second electrode are strip.
11. arrangement for detecting according to claim 3, it is characterized in that, described arrangement for detecting also comprises processor, and described first first electrode and the described first second electrode are connected to described processor respectively, and described second first electrode and the described second second electrode are connected to described processor respectively.
12. arrangement for detecting according to claim 11 is characterized in that, described sweep circuit also comprises a plurality of switches, connects the described first first electrode, the described first second electrode, the described second first electrode and the described second second electrode respectively to described processor.
13. arrangement for detecting according to claim 2 is characterized in that, mutually insulated between described first electrode and described second electrode.
14. arrangement for detecting according to claim 13 is characterized in that, between described first electrode and described second electrode insulation course is set.
15. arrangement for detecting according to claim 14 is characterized in that, described insulation course comprises the plane continuous structure.
16. arrangement for detecting according to claim 14 is characterized in that, described insulation course comprises a plurality of insulating trips, and described insulating trip is arranged at the described electrode crossing place of described first electrode and described second electrode respectively.
17. arrangement for detecting according to claim 2 is characterized in that, described first direction and described second direction do not overlap.
18. arrangement for detecting according to claim 2 is characterized in that, described first electrode and described second electrode are transparent conductive material.
19. arrangement for detecting according to claim 2 is characterized in that, described first electrode and described second electrode are metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206131051U CN201853216U (en) | 2010-11-13 | 2010-11-13 | True coordinate detection device of multiple touch points |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206131051U CN201853216U (en) | 2010-11-13 | 2010-11-13 | True coordinate detection device of multiple touch points |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467284A (en) * | 2010-11-13 | 2012-05-23 | 宸鸿科技(厦门)有限公司 | True coordinate detecting device and method of multiple touch points |
| CN106227387A (en) * | 2016-07-29 | 2016-12-14 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN113692569A (en) * | 2020-03-17 | 2021-11-23 | 京东方科技集团股份有限公司 | Touch positioning method and device |
-
2010
- 2010-11-13 CN CN2010206131051U patent/CN201853216U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467284A (en) * | 2010-11-13 | 2012-05-23 | 宸鸿科技(厦门)有限公司 | True coordinate detecting device and method of multiple touch points |
| CN102467284B (en) * | 2010-11-13 | 2016-05-25 | 宸鸿科技(厦门)有限公司 | A kind of true coordinates arrangement for detecting and method for detecting thereof of multiple touch points |
| CN106227387A (en) * | 2016-07-29 | 2016-12-14 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN106227387B (en) * | 2016-07-29 | 2019-01-25 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN113692569A (en) * | 2020-03-17 | 2021-11-23 | 京东方科技集团股份有限公司 | Touch positioning method and device |
| CN113692569B (en) * | 2020-03-17 | 2024-01-23 | 京东方科技集团股份有限公司 | Touch positioning method and device |
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Granted publication date: 20110601 Effective date of abandoning: 20160525 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |