CN102135816A - Input device provided with dual induction coils and rotating action output method thereof - Google Patents
Input device provided with dual induction coils and rotating action output method thereof Download PDFInfo
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- CN102135816A CN102135816A CN2010101042234A CN201010104223A CN102135816A CN 102135816 A CN102135816 A CN 102135816A CN 2010101042234 A CN2010101042234 A CN 2010101042234A CN 201010104223 A CN201010104223 A CN 201010104223A CN 102135816 A CN102135816 A CN 102135816A
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Abstract
The invention discloses an input device provided with dual induction coils and a rotating action output method thereof. The input device moves on a track retrieval device and outputs a track signal to an electronic device. When the input device rotates on the retrieval device, the two coils in the input device respectively send out an induction signal to the track retrieval device. The track retrieval device converts the two induction signals into two position signals respectively so as to judge the displacement and the rotating direction of the two position signals to ensure that the track retrieval device outputs a rotating signal to the electronic device to enable the electronic device to execute an action instruction according to the rotating signal.
Description
Technical field
The invention relates to the input media of the two inductive coils of a kind of tool, the input media and the spinning movement output intent thereof of the two inductive coils of particularly a kind of tool.
Background technology
Along with the progress of computer technology, people's recording mode replaces with computer gradually, and the control of computer and use generally all are by mouse and keyboard, but draws with mouse and keyboard, and it has inconvenience and restriction in the sky earlier.Therefore, develop gradually and digital pen and digiboard, make people when writing or draw, as past general using paper notes record mode.
For instance, habitual digiboard utilizes the position of digital pen on digiboard to move, and promptly calculates coordinate and changes in coordinates in the two-dimensional space, decides its motion track, and some conventional techniques is utilized a kind of technology of electromagnetic field inducing.On digiboard, use a plurality of electromagnetic induction antenna loops (loop) to detect the electromagnetic induction voltage of digital pen in this technology, to determine digital pen with respect to the coordinate position on the digiboard, and then in the execution viewing window pictures as the towing (scrolling) of index, click (clicking) or track functions such as (tracing), or functions such as writing words, drawing.
Yet above-mentioned to carry out the input mode control index with digital pen no doubt convenient, but this kind mode only provides required relative shift and the motion track thereof of vernier on the general viewing window pictures, and its range of application is very limited.And the zone that Gong the digital pen on the digiboard is write is very limited, the user when using mapping software, if will draw the straight line lines time, digiboard write the shift length that digital pen is often limited in the zone, and the straight line that causes being drawn interrupts.Just so, inconvenience is also arranged during drawing.
Summary of the invention
In view of above problem, the invention provides the input media and the spinning movement output intent thereof of the two inductive coils of a kind of tool, an input media of writing region limits that is not subjected to digiboard is provided, carry out the switching (as the switching of viewing window pictures or the convergent-divergent of viewing window pictures) of two kinds of patterns by the rotation input media, make the operation of operating system more convenient quick.
The input media of the two inductive coils of disclosed tool moves on a trajectory retrieval device according to the present invention, makes the trajectory retrieval device export trajectory signal to an electronic installation.Input media includes a main coil, a secondary coil and a radio circuit.Wherein, main coil sends a main induction signal, and secondary coil then sends a secondary induced signal.Radio circuit is electrically connected at main coil and secondary coil, and transmits main induction signal and secondary induced signal to the trajectory retrieval device.In a very first time, the trajectory retrieval device is converted to one first master site signal and one first secondary position signalling with main induction signal and secondary induced signal.In one second time, the rotation input media is converted to one second master site signal and one second secondary position signalling with the trajectory retrieval device with main induction signal and secondary induced signal again.And then compare the first master site signal and the second master site signal, and compare the first secondary position signalling and the second secondary position signalling.So that the trajectory retrieval device is exported a rotating signal to electronic installation, electronic installation is again according to the corresponding action command of carrying out of rotating signal.
The spinning movement output intent of the input media of the two inductive coils of disclosed tool includes following steps: send a main induction signal with a main coil, and a secondary coil sends a secondary induced signal according to the present invention; In a very first time, receive main induction signal and secondary induced signal with a trajectory retrieval device, and main induction signal and secondary induced signal are converted to one first master site signal and one first secondary position signalling; At one second time rotation input media, receive main induction signal and secondary induced signal once more with the trajectory retrieval device, and main induction signal and secondary induced signal are converted to one second master site signal and one second secondary position signalling; Compare the first master site signal and the second master site signal, and compare the first secondary position signalling and the second secondary position signalling, so that the trajectory retrieval device is exported rotating signal to an electronic installation, electronic installation is according to the corresponding action command of carrying out of rotating signal.
When effect of the present invention is that input media rotates on the trajectory retrieval device, exportable one clockwise or counterclockwise rotating signal is given electronic installation, carry out an action command to switch electronic installation, for example with clockwise or counterclockwise rotating signal switch electronic installation viewing window pictures carrying out clockwise or be rotated counterclockwise, or switching viewing window pictures amplifies or dwindles, and switches in order to the viewing window pictures of operating system.Even can be in viewing window pictures rolling target (object), for example describe a 3D model with mapping software, rotate the corresponding control of input media 3D model again and carry out the rotation of various angles.
Above about content of the present invention explanation and the explanation of following embodiment in order to demonstration with explain principle of the present invention, and provide scope of patent protection of the present invention further to explain.
Description of drawings
Fig. 1 is the synoptic diagram of input media on the trajectory retrieval device according to first embodiment of the invention;
Fig. 2 is the synoptic diagram of input media on the trajectory retrieval device according to second embodiment of the invention;
Fig. 3 is the synoptic diagram of input media on the trajectory retrieval device according to third embodiment of the invention;
Fig. 4 is the synoptic diagram of input media on the trajectory retrieval device according to fourth embodiment of the invention;
Fig. 5 is the method flow diagram according to the input media output rotating signal of the two inductive coils of tool of the present invention;
Fig. 6 and Fig. 7 are the synoptic diagram according to the sense of rotation of the input media of the two inductive coils of one embodiment of the invention judgement tool;
Fig. 8 is the synoptic diagram of input media on the trajectory retrieval device according to fifth embodiment of the invention; And
Fig. 9 and Figure 10 are the synoptic diagram according to the sense of rotation of the input media of the two inductive coils of another embodiment of the present invention judgement tool.
Description of reference numerals
10 input medias
11 main coils
12 secondary coils
13 radio circuits
14 switchs
20 trajectory retrieval devices
21 workspaces
22 main induction circuit
23 secondary sensor circuits
The A first master site signal
A ' second master site the signal
The B first secondary position signalling
B ' second secondary the position signalling
The O nib
The R axle center
Step S210 sends the main induction signal with main coil, and secondary coil sends secondary induced signal;
Step S220 receives main induction signal and secondary induced signal in a very first time with the trajectory retrieval device, and main induction signal and secondary induced signal are converted to one first master site signal and one first secondary position signalling;
Step S230 receives main induction signal and secondary induced signal once more with the trajectory retrieval device, and main induction signal and secondary induced signal is converted to one second master site signal and one second secondary position signalling at one second time rotation input media;
Step S240 compares the first master site signal and the second master site signal, and compare the first secondary position signalling and the second secondary position signalling, make the trajectory retrieval device export rotating signal to an electronic installation, electronic installation is according to the corresponding action command of carrying out of rotating signal.
Embodiment
In following preferred embodiment, describe the input media of the two inductive coils of tool of the present invention and the output intent of spinning movement thereof in detail.Yet notion of the present invention also can be used for other scopes.Following listed examples only is used to purpose of the present invention and technical scheme are described, is not in order to limit its scope.
Fig. 1 is the synoptic diagram of input media on the trajectory retrieval device according to first embodiment of the invention.Please refer to shown in Figure 1ly, input media 10 can be designed to a pen-shaped structure, but not as limit.And be respectively arranged with in input media 10 inside a main coil 11 and a secondary coil 12 (be noted that, coil with " master " or " pair " only as the explanation that separates two groups of coils, not other restriction).Along the nib O of input media 10 as axle center R, respectively and be listed in the relative dual side-edge of axle center R with main coil 11 and secondary coil 12.In addition, input media 10 has more a radio circuit 13, and main coil 11 and secondary coil 12 are electrically connected at radio circuit 13 respectively.
In the present embodiment, main coil 11 can produce a main induction signal, and secondary coil 12 then can produce a secondary induced signal.Wherein, the residing predominant frequency section of main induction signal does not overlap the residing side frequency section of secondary induced signal.For instance, the residing predominant frequency section of main induction signal can be 120K～250K hertz, and the residing side frequency section of secondary induced signal can be 40K～80K hertz, but not as limit.
In addition, trajectory retrieval device 20 can be a digiboard (Digital Board), but not as limit.Trajectory retrieval device 20 includes a workspace 21, moves on workspace 21 so that input media 10 to be provided.Workspace 21 forms by the signal wire of a plurality of X-directions and Y direction is staggered, and constitutes a main induction circuit 22 and a secondary sensor circuit 23.When the nib O of input media 10 contacted in workspace 21, the main induction signal that main coil 11 is produced can be transferred to main induction circuit 22 by radio circuit 13.Same, the secondary induced signal that secondary coil 12 is produced also can be transferred to secondary sensor circuit 23 by radio circuit 13.
Briefly, carry out trajectory displacement when action on the workspace 21 of input media 10 at trajectory retrieval device 20 when the user grips, but the main induction signal of radio circuit 13 synchronized transmission different frequencies and secondary induced signal are to trajectory retrieval device 20.The same time, major and minor sensor circuit 22,23 can receive main induction signal and secondary induced signal respectively, and convert main induction signal and secondary induction news to a master site signal and a secondary position signalling (for example with filtering (filter) mode) respectively, judge the travel track of input media 10 on trajectory retrieval device 20 with this.Yet, the motion track (as straight line, oblique line or curve etc.) of obtaining input media 10 with trajectory retrieval device 20 for known techniques, seldom give unnecessary details at this.
Then, with another embodiment the present invention is described.As shown in Figure 2, be the synoptic diagram of input media on the trajectory retrieval device according to second embodiment of the invention.Its embodiment and aforesaid embodiment are roughly the same, below only are illustrated with regard to different part.Input media 10 also comprises a switch 14 (Swich), in order to electrically connect main coil 11 and secondary coil 12 respectively.Main coil 11 can produce a main induction signal, and secondary coil 12 can produce a secondary induced signal, and makes the residing predominant frequency section of main induction signal and the residing side frequency section of secondary induced signal overlapped.
In the present embodiment, switch 14 is that mode with one after the other transmits main induction signal or secondary induced signal to radio circuit 13.In simple terms, when switch 14 during at transmission main induction signal, its secondary induced signal is then put to the memory buffer (Buffer) (not illustrating) temporarily.Afterwards, switch 14 then then transmits secondary induced signal to radio circuit 13 after transmission main induction signal finishes, and changes the main induction signal put temporarily to storer and (do not illustrate).So, switch 14 can be taken turns flow transmission main induction signal and secondary induced signal respectively to radio circuit 13 in a specified time interval.
The special time that sets according to switch 14 or receive number of times, make radio circuit 13 in different time, receive main induction signal and secondary induced signal in turn, then by radio circuit 13 the major and minor sensor circuit 22,23 that main induction signal and secondary induced signal are sent to trajectory retrieval device 20 is in turn received again, to judge the position of input media 10 on trajectory retrieval device 20.
In addition, input media 10 of the present invention is not defined as the structure of digital pen or other forms of a stroke or a combination of strokes, and it also can be designed to a mouse structure with input media 10.As shown in Figure 3, be the synoptic diagram of input media on the trajectory retrieval device of the 3rd embodiment.Its embodiment and aforesaid embodiment are roughly the same, below only are illustrated with regard to different locating.Input media 10 can be a mouse structure (as wire mouse or wireless mouse), and is respectively arranged with main coil 11 and secondary coil 12 arranged side by side mutually in input media 10 inside.And make main coil 11 and secondary coil 12 be electrically connected at radio circuit 13 respectively.
So, it is mobile on the workspace 21 of trajectory retrieval device 20 that the user can grip input media 10.At this moment, the main induction signal that produced of main coil 11 can be transferred to main induction circuit 22 by radio circuit 13.Same, the secondary induced signal that secondary coil 12 is produced also can be transferred to secondary sensor circuit 23 by radio circuit 13.Thus, the user is when operated input device 10 (as wireless mouse), but radio circuit 13 synchronized transmission main induction signals and secondary induced signal are to major and minor sensor circuit 22,23, again main induction signal and secondary induction news are converted to a master site signal and a secondary position signalling (for example with filtering (filter) mode) respectively, judge the travel track of input media 10 on trajectory retrieval device 20 with this.
In addition, as shown in Figure 4, be the synoptic diagram of input media on the trajectory retrieval device of the 4th embodiment.Its embodiment and aforesaid embodiment are roughly the same, below only are illustrated with regard to different part.In the present embodiment, also comprise a switch 14 (Swich) in the input media 10 (as mouse structure), be electrically connected at main coil 11 and secondary coil 12 respectively.And make the main induction signal that main coil 11 produced the predominant frequency section and the side frequency section of the secondary induced signal that produced of secondary coil 12 overlapped.
Therefore, can be by the mode of switch 14 with one after the other, in different time, main induction signal or secondary induced signal are sent in the radio circuit 13 in turn, then by radio circuit 13 the major and minor sensor circuit 22,23 that main induction signal and secondary induced signal are sent to trajectory retrieval device 20 is in turn received again, to judge the travel track of input media 10 on trajectory retrieval device 20.
As shown in Figure 5, export the method flow diagram of rotating signal for the input media of the two inductive coils of tool.According to the structure of each embodiment of above-mentioned input media, all can be applicable to the method flow diagram of Fig. 5: at first, step S210 sends the main induction signal with main coil 11, and secondary coil 12 sends secondary induced signal; Step S220 in a very first time, receives main induction signal and secondary induced signal with trajectory retrieval device 20, and main induction signal and secondary induced signal is converted to one first master site signal and one first secondary position signalling; Step S230 at one second time rotation input media 10, receives main induction signal and secondary induced signal once more with trajectory retrieval device 20, and main induction signal and secondary induced signal is converted to one second master site signal and one second secondary position signalling; Step S240, compare the first master site signal and the second master site signal, and compare the first secondary position signalling and the second secondary position signalling, and make the trajectory retrieval device export rotating signal to an electronic installation, electronic installation is according to the corresponding action command of carrying out of rotating signal.
Be the mode signal output of clearer description sense of rotation, special describe in detail, and can use among each embodiment as Fig. 1 to Fig. 4, but do not exceed with aforementioned each embodiment with Fig. 6 and Fig. 7.Wherein, Fig. 6 and Fig. 7 are all the synoptic diagram of the sense of rotation of the input media of judging the two inductive coils of tool.X shown in the figure, Y promptly represent X-direction and the Y direction in the two-dimensional coordinate, and with the nib O of input media 10 intersection point as X-axis and Y-axis, and on X-axis and Y-axis, marked off first quartile (+, +), second quadrant (, +), third quadrant (,-) and four-quadrant (+,-).Main induction signal and secondary induced signal that main coil 11 and secondary coil 12 are sent convert the first master site signal A and the first secondary position signalling B respectively to.Judge first master site signal A (hereinafter to be referred as the A point) and the position of the first secondary position signalling B (hereinafter to be referred as the B point) between all quadrants with this.
When the user rotates input media 10, can nib O as reference point, or with the mid point between main coil 11 and the secondary coil 12 as reference point, make the A point move to A ' point (promptly representing the second master site signal A '), the B point moves to B ' point (promptly representing the second secondary position signalling B ').If the A point moves to A ' point, and the B point to move to B ' order be by first quartile → second quadrant → third quadrant → when four-quadrant direction order is mobile (as shown in Figure 6), then trajectory retrieval device 20 judges that input media 10 is along a rotation counterclockwise, export one with this and be rotated counterclockwise signal, and then the control electronic installation switches to first pattern to electronic installation (not illustrating).
If the A point moves to A ' point, and the B point to move to B ' order be by the direction order of first quartile → the four-quadrant → third quadrant → second quadrant when mobile (as shown in Figure 7), then trajectory retrieval device 20 judges that input media 10 rotates along a clockwise direction, export a dextrorotation rotaring signal to electronic installation (not illustrating) with this, and then the control electronic installation switches to second pattern.
Be understandable that when input media 10 rotations, trajectory retrieval device 20 can judge merely that also the A point moves to the X-axis of A ' point, the changes in coordinates of Y-axis, and judges that the B point moves to the X-axis of B ' point, the changes in coordinates of Y-axis.Though since A point the amount of movement of X-axis and Y-axis must with amount of movement " identical " and the moving direction " on the contrary " of B point in X-axis and Y-axis, so trajectory retrieval device 20 carries out a clockwise or action that is rotated counterclockwise from decidable input media 10.For example, the A point at the coordinate system of Y-axis from large to small, relative B point is then represented clockwise spinning movement when the coordinate system of Y-axis changes from small to big.
Thus, by rotation input media 10 on trajectory retrieval device 20, judge the sense of rotation (as clockwise direction or counter clockwise direction) of input media 10 with this, and then export an a pair of clockwise rotating signal or the corresponding anticlockwise rotating signal of answering and give electronic installation, allow electronic installation carry out an action command according to the signal correspondence of sense of rotation.For instance, when input media 10 turned clockwise, the viewing window pictures that can control electronic installation (as computer) clockwise rotated (promptly carrying out first pattern).If when input media 10 is rotated counterclockwise, then can controls viewing window pictures and rotate counterclockwise (promptly carrying out second pattern).
Yet this is embodiment explanation, and is non-in order to limit claim of the present invention.It also can come correspondence to control the action command of electronic installation, including, but not limited to the function of amplifying (zoom in) or dwindling (zoom out) as viewing window pictures the clockwise or counterclockwise direction of input media 10 rotations.Or the target in the clear view screen picture (object), for example target can be the 3D model that application (as mapping software) is described, and rotates with the angle that the sense of rotation of input media 10 comes corresponding control 3D model to carry out 360 °.Only need with the dextrorotation rotaring signal and be rotated counterclockwise signal to come operating electronic devices to carry out the switching of first pattern and second pattern, or the action command of carrying out a corresponding rotating signal gets final product.
Moreover with the clear mode signal output of describing another kind of sense of rotation of another embodiment, the spy describes in detail with Fig. 9 and Figure 10, and can use the embodiment as Fig. 8, but not as limit.Fig. 9 and Figure 10 are all the synoptic diagram of the sense of rotation of the input media of judging the two inductive coils of tool.X shown in the figure, Y promptly represent X-direction and the Y direction in the two-dimensional coordinate.In the present embodiment, the first master site signal A that is produced with the main coil 11 of input media 10 is as reference point, or first master site signal A be positioned at the intersection point of X-axis and Y-axis, and on X-axis and Y-axis, marked off first quartile (+, +), second quadrant (,+), third quadrant (,-) and four-quadrant (+,-), and the first secondary position signalling B that secondary coil 12 is produced can make a swing offset with respect to the first master site signal A.
When the user rotated input media 10, the first master site signal A that can main coil 11 was as reference point, and promptly the A point maintains static, and makes the B point move to B ' point (promptly representing the second secondary position signalling B ').If it is by the direction of first quartile → the four-quadrant → third quadrant → second quadrant when mobile in proper order (as shown in Figure 9) that B point moves to B ' order, then trajectory retrieval device 20 judges that input media 10 rotates along a clockwise direction, export a dextrorotation rotaring signal to electronic installation (not illustrating) with this, and then control the electronic installation switch mode or carry out specific action command.
If it is by first quartile → second quadrant → third quadrant → when four-quadrant direction is mobile in proper order (as shown in figure 10) that B point moves to B ' order, then trajectory retrieval device 20 judges that input media 10 is along a rotation counterclockwise, export one with this and be rotated counterclockwise signal, and then control the electronic installation switch mode or carry out specific action command to electronic installation (not illustrating).
It should be noted that the first secondary position signalling B that the user also can secondary coil 12 especially as reference point, the first master site signal A then relative first secondary position signalling B of main coil 11 is rotated; Because judgment mode is identical, therefore do not discuss separately.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; being familiar with those of ordinary skill in the art ought can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the input media of the two inductive coils of tool moves on a trajectory retrieval device, makes this trajectory retrieval device export trajectory signal to an electronic installation, and it includes:
One main coil sends a main induction signal;
One secondary coil sends a secondary induced signal; And
One radio circuit electrically connects this main coil and this secondary coil, and transmits this main induction signal and this pair induced signal to this trajectory retrieval device;
Wherein, in a very first time, this trajectory retrieval device is converted to one first master site signal and one first secondary position signalling with this main induction signal and this pair induced signal, rotate this input media in one second time, with this trajectory retrieval device this main induction signal and this pair induced signal are converted to one second master site signal and one second secondary position signalling again, compare this first master site signal and this second master site signal, and after comparing this first secondary position signalling and this second secondary position signalling, make this trajectory retrieval device export a rotating signal to this electronic installation, this electronic installation is according to the corresponding action command of carrying out of this rotating signal.
2. the input media of the two inductive coils of tool according to claim 1, wherein this input media has a reference point between this main coil and this secondary coil, and this input media rotates on this trajectory retrieval device with this reference point.
3. the input media of the two inductive coils of tool according to claim 1, wherein this input media is a reference point with this main coil or this secondary coil, this input media rotates on this trajectory retrieval device with this reference point.
4. the input media of the two inductive coils of tool according to claim 1, wherein this main induction signal has a predominant frequency section, this pair induced signal has a side frequency section, this predominant frequency section is different from this side frequency section, and with this main induction signal of this radio circuit synchronized transmissions and this pair induced signal to this trajectory retrieval device.
5. the input media of the two inductive coils of tool according to claim 1, wherein this main induction signal has a predominant frequency section, this pair induced signal has a side frequency section, this predominant frequency section is same as this side frequency section, and this radio circuit has a switch, this switch wheel this main induction signal of flow transmission and this pair induced signal be to this radio circuit, alternately launches this main induction signal and this pair induced signal to this trajectory retrieval device by this radio circuit again.
6. the spinning movement output intent of the input media of the two inductive coils of tool is mobile on a trajectory retrieval device, and includes following steps:
Send a main induction signal with a main coil, and a secondary coil sends a secondary induced signal;
In a very first time, receive this main induction signal and this pair induced signal with this trajectory retrieval device, and this main induction signal and this pair induced signal are converted to one first master site signal and one first secondary position signalling;
Rotate this input media in one second time, receive this main induction signal and this pair induced signal once more, and this main induction signal and this pair induced signal are converted to one second master site signal and one second secondary position signalling with this trajectory retrieval device; And
Compare this first master site signal and this second master site signal, and compare this first secondary position signalling and this second secondary position signalling, make this trajectory retrieval device export rotating signal to an electronic installation, this electronic installation is according to the corresponding action command of carrying out of this rotating signal.
7. the spinning movement output intent of the input media of the two inductive coils of tool according to claim 6, wherein this rotating signal is that a dextrorotation rotaring signal or is rotated counterclockwise signal, when this electronic installation receives this dextrorotation rotaring signal, a viewing window pictures of controlling this electronic installation turns clockwise, when this electronic installation received this and is rotated counterclockwise signal, this viewing window pictures of controlling this electronic installation was rotated counterclockwise.
8. the spinning movement output intent of the input media of the two inductive coils of tool according to claim 6, wherein this rotating signal is that a dextrorotation rotaring signal or is rotated counterclockwise signal, when this electronic installation receives this dextrorotation rotaring signal, a viewing window pictures of controlling this electronic installation amplifies (zoom in), when this electronic installation received this and is rotated counterclockwise signal, this viewing window pictures of controlling this electronic installation dwindled (zoom out).
9. the spinning movement output intent of the input media of the two inductive coils of tool according to claim 6, wherein this input media has a reference point between this main coil and this secondary coil, and this input media rotates on this trajectory retrieval device with this reference point.
10. the spinning movement output intent of the input media of the two inductive coils of tool according to claim 6, wherein this input media is a reference point with this main coil or this secondary coil, this input media rotates on this trajectory retrieval device with this reference point.
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| CN2010101042234A CN102135816B (en) | 2010-01-27 | 2010-01-27 | Input device provided with dual induction coils and rotating action output method thereof |
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| CN2010101042234A CN102135816B (en) | 2010-01-27 | 2010-01-27 | Input device provided with dual induction coils and rotating action output method thereof |
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| WO2019036826A1 (en) * | 2017-08-21 | 2019-02-28 | 华为技术有限公司 | Control method for electronic apparatus and input apparatus |
| WO2022012376A1 (en) * | 2020-07-13 | 2022-01-20 | 北京握奇数据股份有限公司 | High-frequency dual-induction antenna and manufacturing method therefor |
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| CN102707800A (en) * | 2012-05-03 | 2012-10-03 | 深圳市迪瑞德科技有限公司 | Input system |
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| CN102135816B (en) | 2013-01-16 |
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