CN101901055B - Information input device and electronic device - Google Patents
Information input device and electronic device Download PDFInfo
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- CN101901055B CN101901055B CN 200910143042 CN200910143042A CN101901055B CN 101901055 B CN101901055 B CN 101901055B CN 200910143042 CN200910143042 CN 200910143042 CN 200910143042 A CN200910143042 A CN 200910143042A CN 101901055 B CN101901055 B CN 101901055B
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Abstract
The invention discloses an information input device and an electronic device. The information input device comprises a plurality of keys, an optical module, a sensing module and a processing module. The plurality of keys are arranged on the information input device. The optical module is arranged on the first side of the information input device and used for emitting a plurality of light rays along the first direction, and the plurality of light rays correspond to the plurality of keys respectively. The sensing module is arranged on a second side of the information input device opposite to the first side and used for receiving a plurality of light rays and generating a sensing result. The processing module is connected to the sensing module. When one of the plurality of keys is pressed, the pressed key blocks at least one of the plurality of light rays, so that the sensing module adjusts the sensing result, and the processing module judges the position of the pressed key according to the sensing result.
Description
Technical field
The present invention relates to a kind of message input device, particularly relate to a kind of message input device that can utilize Optical Transmit Unit and photoelectricity sensing cell to detect pressing keys simply.
Background technology
Generally speaking, as user during at operation as the portable electron device of mobile computer, typically use keyboard to carry out the action that information is imported.Yet, traditional keyboard need arrange in pairs or groups mechanism and the circuit of button below, not only complex structure takes up space again, makes that the mobile computer volume is excessive, and reduces the convenience that carries.
In the prior art, the appearance of touch keyboard can solve the problem that traditional keyboard structure is complicated and take up space.Yet, use traditional mechanical type keyboard because the user is permanent, and the touch keyboard lacks as conventional keyboard press pressure sensitivity really, so the touch keyboard still can't replace conventional keyboard so far fully.
Therefore, the present invention proposes a kind of message input device and a kind of electronic installation, to address the above problem.
Summary of the invention
The present invention proposes a kind of message input device that can utilize Optical Transmit Unit and photoelectricity sensing cell to detect pressing keys simply.
Be a kind of message input device according to a particular embodiment of the invention.In this embodiment, message input device comprises a plurality of buttons, first optical module, first sensing module and processing module.A plurality of buttons are arranged on the message input device, and wherein, a plurality of buttons have prominent shape structure respectively.First optical module is arranged at first side of message input device, in order to along first direction emission multiple tracks first light, and multiple tracks first light corresponding a plurality of buttons respectively.First sensing module is in order to receive multiple tracks first light and to produce first sensing result according to first accepting state that receives multiple tracks first light.Processing module is connected to first sensing module.
When first button in a plurality of buttons is pressed, the protruded stigma structure of first button stops at least one in multiple tracks first light, cause first accepting state to change, first sensing module is adjusted first sensing result according to first accepting state, processing module and then judge the position of this first button according to first sensing result.
According to message input device of the present invention, wherein this first optical module comprises a plurality of optical units and light source, and these a plurality of optical units receive the light that this light source sends and launch this multiple tracks first light respectively.
According to message input device of the present invention, wherein this first sensing module comprises a plurality of optical sensing unit.
According to message input device of the present invention, wherein first optical sensing unit in these a plurality of optical sensing unit is corresponding to first optical unit and primary importance in these a plurality of optical units, and in order to receive one of them of this multiple tracks first light.
According to message input device of the present invention, when wherein this first light of launching when this first optical unit is stopped by this first button, this first optical sensing unit is sent and is not received signal, and this first sensing module does not receive signal according to this and corresponding this primary importance of this first optical sensing unit produces this first sensing result.
According to message input device of the present invention, wherein this protruded stigma structure is the cylinder with rectangular cross section.
According to message input device of the present invention, further comprise:
Second optical module is arranged at the 3rd side of this message input device, in order to along second direction emission multiple tracks second light; And
Second sensing module is connected to this processing module, and this second sensing module is in order to receive this multiple tracks second light and to produce second sensing result according to second accepting state that receives this multiple tracks second light;
Wherein, this protruded stigma structure of this first button stops that this second accepting state that causes at least together in this multiple tracks second light changes, this second sensing module is adjusted this second sensing result according to this second accepting state, and this processing module is judged the position of this first button according to this first sensing result and this second sensing result.
According to message input device of the present invention, in one embodiment, this protruded stigma structure is the cylinder with triangular cross-section.
According to message input device of the present invention, further comprise:
Second sensing module is arranged at the 3rd side on this message input device and is connected to this processing module;
Wherein, this triangular cross-section of this protruded stigma structure reflects at least one in this multiple tracks first light advances along second direction to produce first reflection ray, this second sensing module is in order to receive this first reflection ray and to produce second sensing result according to this first reflection ray that receives, and this processing module is judged the position of this first button according to this first sensing result and this second sensing result.
According to message input device of the present invention, in one embodiment, this protruded stigma structure has at least one through hole and passes through for this first light, when this first button was pressed, this protruded stigma structure with this through hole stopped that with a specific time sequence this first accepting state that causes at least together in this multiple tracks first light changes.
According to message input device of the present invention, in one embodiment, this protruded stigma structure has at least one reflecting piece reflecting this first light, and this first sensing module is arranged at this first side, in order to receive this first light that is reflected by this reflecting piece.
According to message input device of the present invention, wherein when this first button was pressed, this protruded stigma structure with this reflecting piece changed with this first accepting state that causes at least together that a specific time sequence reflects in this multiple tracks first light.
Another specific embodiment according to the present invention is a kind of electronic installation.In this embodiment, electronic installation comprises load module, first optical module, first sensing module and processing module.Load module comprises a plurality of buttons, and a plurality of button has prominent shape structure respectively.First optical module is arranged at first side of load module, in order to along first direction emission multiple tracks first light, and multiple tracks first light corresponding a plurality of buttons respectively.First sensing module is in order to receive multiple tracks first light and to produce first sensing result according to first accepting state that receives multiple tracks first light.Processing module is connected to first sensing module.
When first button in these a plurality of buttons is pressed, the protruded stigma structure of first button stops at least one in multiple tracks first light, cause first accepting state to change, first sensing module is adjusted first sensing result according to first accepting state, and processing module is judged the position of first button according to first sensing result.
According to electronic installation of the present invention, wherein this first optical module comprises a plurality of optical units and light source, and these a plurality of optical units receive the light that this light source sends and launch this multiple tracks first light respectively.
According to electronic installation of the present invention, wherein this first sensing module comprises a plurality of optical sensing unit.
According to electronic installation of the present invention, wherein first optical sensing unit in these a plurality of optical sensing unit is corresponding to first optical unit and primary importance in these a plurality of optical units, and in order to receive one of them of this multiple tracks first light.
According to electronic installation of the present invention, when wherein this first light of launching when this first optical unit is stopped by this first button, this first optical sensing unit is sent and is not received signal, and this first sensing module does not receive signal according to this and produces this first sensing result.
According to electronic installation of the present invention, in one embodiment, this protruded stigma structure is the cylinder with rectangular cross section.
According to electronic installation of the present invention, further comprise:
Second optical module is arranged at the 3rd side of this message input device, in order to along second direction emission multiple tracks second light; And
Second sensing module is connected to this processing module, and this second sensing module is in order to receive this multiple tracks second light and to produce second sensing result according to second accepting state that receives this multiple tracks second light;
Wherein, this protruded stigma structure of this first button stops that this second accepting state that causes at least together in this multiple tracks second light changes, this second sensing module is adjusted this second sensing result according to this second accepting state, and this processing module is judged the position of this first button according to this first sensing result and this second sensing result.
According to electronic installation of the present invention, in one embodiment, this protruded stigma structure is the cylinder with triangular cross-section.
According to electronic installation of the present invention, further comprise:
Second sensing module is arranged at the 3rd side on this message input device and is connected to this processing module;
Wherein, this triangular cross-section of this protruded stigma structure reflects at least one in this multiple tracks first light advances along second direction to produce first reflection ray, this second sensing module is in order to receiving this first reflection ray and to produce second sensing result according to this first reflection ray that receives, and this processing module is judged position corresponding to this button according to this first sensing result and this second sensing result on this surface.
According to electronic installation of the present invention, in one embodiment, this protruded stigma structure has at least one through hole and passes through for this first light, when this first button was pressed, this protruded stigma structure with this through hole stopped that with a specific time sequence this first accepting state that causes at least together in this multiple tracks first light changes.
According to electronic installation of the present invention, in one embodiment, this protruded stigma structure has at least one reflecting piece reflecting this first light, and this first sensing module is arranged at this first side, in order to receive this first light that is reflected by this reflecting piece.
According to electronic installation of the present invention, wherein when this first button was pressed, this protruded stigma structure with this reflecting piece changed with this first accepting state that causes at least together that a specific time sequence reflects in this multiple tracks first light.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Figure 1A shows according to a particular embodiment of the invention message input device at preoperative sectional view.
Figure 1B shows the sectional view of message input device after operation as shown in Figure 1.
Fig. 2 A and Fig. 2 B show the synoptic diagram of the message input device shown in Figure 1A.
Fig. 3 shows the synoptic diagram of message input device according to a particular embodiment of the invention.
Fig. 4 A shows the synoptic diagram of button according to a particular embodiment of the invention.
The first received sensing result of first sensing module when each button that Fig. 4 B shows Fig. 4 A is pressed.
Fig. 5 shows the synoptic diagram of electronic installation according to a particular embodiment of the invention.
Embodiment
The present invention proposes a kind of message input device, utilizes Optical Transmit Unit and photoelectricity sensing cell to detect the button of being pressed by the user, does not need to arrange below button complicated structure and circuit, so but simplified design and reduce cost.
See also Figure 1A.Figure 1A shows according to a particular embodiment of the invention message input device 1 at preoperative sectional view.Shown in Figure 1A, message input device 1 comprises button 12, first optical module 13, first sensing module 14 and processing module 15.Wherein processing module 15 is connected to first sensing module 14.A plurality of buttons 12 are arranged on the message input device 1, and wherein, a plurality of buttons 12 have a prominent shape structure 120 respectively.First optical module 13 is arranged at first side 103 of message input device 1, in order to launch first light 130 along first direction.First sensing module 14 is arranged at second side 104 of relative first side 103 on the message input device, in order to receive first light 130 and to produce first sensing result according to first accepting state that receives first light 130.
See also Figure 1B.Figure 1B shows the sectional view of message input device 1 after operation shown in Figure 1A.As shown in Figure 1B, when first button 12 ' in a plurality of buttons 12 is pressed, the protruded stigma structure 120 ' of first button 12 ' stops first light of being launched by first optical module 13 130, cause first accepting state of first sensing module 14 to change, this moment, first sensing module 14 was adjusted first sensing result according to first accepting state, processing module and then judge the position of first button 12 ' according to first sensing result.
See also Fig. 2 A and Fig. 2 B.Fig. 2 A and Fig. 2 B show the synoptic diagram of the message input device 1 shown in Figure 1A.Shown in Fig. 2 A, first optical module 13 further comprises a plurality of first optical unit 13A～13G and is distributed in regular turn in first optical module 13, and first optical unit 13A～13G launches first light 130 along first direction respectively.Wherein multiple tracks first light is distinguished a plurality of buttons 12 on the corresponding informance input media 1.Note that in practical operation each optical unit can receive its light and convert the light that receives first light of multiple tracks to from a light source, a plurality of light sources corresponding each optical unit and then first light is provided respectively also can be set.
Similarly, shown in Fig. 2 A, first sensing module 14 in the above-mentioned specific embodiment also further comprises a plurality of first optical sensing unit 14A～14G and is distributed in regular turn in first sensing module 14.Wherein first optical sensing unit 14A～14G is in regular turn corresponding to first optical unit 13A～13G, that is, the position of the corresponding first optical unit 13A of the first optical sensing unit 14A; The position of the corresponding first optical unit 13B of the first optical sensing unit 14B, the rest may be inferred.In addition, the first optical sensing unit 14A is in order to receive first light 130 of the first optical unit 13A; Similarly, the first optical sensing unit 14B is in order to receive first light 130 of the first optical unit 13B.
When operation, shown in Fig. 2 B, the position of first button 12 ' is along the corresponding first optical unit 13B of first direction, when the user presses first button 12 ', the convex cylinder 120 ' of first button 12 ' stops first light 130 (as shown in Figure 1B) that the first optical unit 13B launches, cause the first corresponding optical sensing unit 14B can't receive first light 130 that the first optical unit 13B sends, the first optical sensing unit 14B sent and did not receive signal this moment.First sensing module, 14 bases do not receive signal and the corresponding position of the first optical sensing unit 13B produces first sensing result, and wherein sensing result is for judging that first button 120 ' is perpendicular to the coordinate L of first direction
Y2
In addition, the protruded stigma structure 120 of button 12 belows is the cylinder with rectangular cross section, and message input device 1 further comprises second optical module 16 and second sensing module 17.Shown in Fig. 2 A, the 3rd side 106, the second sensing modules 17 that second optical module 16 is arranged at message input device 1 are arranged on the message input device 1 the 4th side 107 with respect to the 3rd side 106, and are connected to the processing module 15 shown in Figure 1A.
And, shown in Fig. 2 B, second optical module 16 can further comprise a plurality of second optical unit 16A～16L and be distributed in regular turn in second optical module 16, and second sensing module 17 also further comprises a plurality of second optical sensing unit 17A～17L and is distributed in regular turn in second sensing module 17.As the corresponding relation of first optical unit 13A～13G and first optical sensing unit 14A～14G, second optical unit 16A～16L also distinguishes corresponding second optical sensing unit 17A～17L in regular turn.Second optical unit 16A～16L can launch second light 160 along second direction, and second optical sensing unit 17A～17L can receive multiple tracks second light 160 that second optical unit 16A～16L sends respectively.
Shown in Fig. 2 B, the position of first button 12 ' is along the corresponding second optical unit 16C of second direction, therefore when first button 12 ' is pressed, the convex cylinder 120 ' of first button 12 ' stops second light 160 that the second optical unit 16C launches, cause the second corresponding optical sensing unit 17C can't receive second light 160 that the second optical unit 16C sends, the second optical sensing unit 17C sent and did not receive signal this moment.Second sensing module, 17 bases do not receive signal and the corresponding position of the second optical sensing unit 17C produces second sensing result, judge that first button 120 ' is perpendicular to the coordinate L of second direction
X3Therefore, first button 120 ' can be respectively by coordinate L in message input device 1 lip-deep position
X3And coordinate L
Y2Definition.
Another specific embodiment according to the present invention is a kind of message input device.See also Fig. 3.Fig. 3 shows the synoptic diagram of message input device 3.Message input device 3 and above-mentioned specific embodiment difference are that the protruded stigma structure of its button below is the cylinder with triangular cross-section, and therefore, message input device 3 can omit second optical module as above-mentioned specific embodiment.
As shown in Figure 3, first optical module 33 of message input device 3 is arranged at first side of message input device 3; First sensing module 34 is arranged at second side with respect to first side, and first sensing module 34 is connected to processing module (not being shown among the figure).First optical module 33 is in order to launch first light 330 along first direction; 34 of first sensing modules are in order to receive first light 330 and to produce first sensing result according to first accepting state that receives first light 330.
In addition, message input device 3 also comprises second sensing module 37 and is arranged at the 3rd side on the message input device 3 and is connected to this processing module.When first button 32 ' is pressed, the protruded stigma structure 320 ' of first button 32 ' stops first light of being launched by first optical module 33 330, cause first accepting state of first sensing module 34 to change (changing over the state that does not receive first light 330 by the state that originally receives first light 330), this moment, first sensing module 34 was adjusted first sensing result according to first accepting state, processing module and then judge the position of first button 32 ' according to first sensing result.Simultaneously, the triangular cross-section of the protruded stigma structure of first button 32 ' reflects first light that first optical module 33 sends advances along second direction to produce reflection ray, and this moment, second sensing module 37 was in order to receive reflection ray and to produce second sensing result according to the reflection ray that receives.Therefore, processing module can be judged the position of first button according to first sensing result and second sensing result.
In this embodiment, first optical module 33 can further comprise a plurality of first optical unit 33A～33G and light source (not shown); First sensing module 34 also can further comprise a plurality of first optical sensing unit 34A～34G; Similarly second sensing module 37 also can further comprise a plurality of second optical sensing unit 37A～37L.Wherein the function of first optical unit 33A～33G and first optical sensing unit and relativeness are identical substantially with above-mentioned specific embodiment, and its details does not repeat them here.The reflection ray that second optical sensing unit 37A～37L is then advanced along second direction by the triangular cross-section reflection of the protruded stigma structure of a plurality of buttons in order to reception, when second optical sensing unit 37A～37L receives reflection ray, then second optical sensing unit 37A～37L sends the reception signal, and second sensing module produces second sensing result according to receiving signal and the corresponding position of second optical sensing unit.
See also Fig. 4 A.Fig. 4 A shows the synoptic diagram of button according to a particular embodiment of the invention.Shown in Fig. 4 A, button 42,44,46,48 has heteroid prominent shape structure 420,440,460 and 480 respectively.Therefore when button was pressed, the sequential difference that heteroid prominent shape structure can make first light be blocked made the first received sensing result difference of the sensing module of winning.Therefore, if each button on the first direction all has the prominent shape structural design that is different from other button, then first sensing module can according to the first different sensing result judge this button on first direction the position and perpendicular to the position of first direction, that is the position of this button on the plane of message input device can be judged out.Thus, second optical module and second sensing module of data input device can be omitted simultaneously, and further save cost.
The prominent shape structure 420 of button 42 has a manhole, and first light 430 that can send for first optical module as shown in Figure 1 passes through; The prominent shape structure 440 of button 44 has two manholes and can pass through for first light 430; The prominent shape structure 460 of button 46 has a manhole can be passed through for first light 430, and in addition, the manhole of prominent shape structure 460 and the manhole of prominent shape structure 420 are positioned at differing heights; The prominent shape structure 480 of button 48 has a long rectangular through-hole and is positioned at as Fig. 4 A and can passes through for first light 430.
In addition, in practical operation, the through hole of above-mentioned prominent shape structure also can be reflecting piece, in order to reflect first light.First sensing module can be arranged at and be same as the first set side of first optical module on the data input device this moment, in order to receive first light that is reflected by reflecting piece.Therefore when button is pressed, have the sequential difference that prominent shape structure that different reflecting piece construct can make first light be reflected, thus, the position of this button on the message input device plane can be judged out.
See also Fig. 4 B.The first received sensing result of first sensing module when each button that Fig. 4 B shows Fig. 4 A is pressed.Among Fig. 4 B, the period that expression such as its small letter English alphabet a, b, c is different.Shown in Fig. 4 B, when button 42 was pressed, first sensing module only received first light in period b in period a to e; When button 44 was pressed, first sensing module received first light at period b and period d; When button 46 was pressed, first sensing module only received first light at period c; When button 48 was pressed, first sensing module all received first light at period b to period e.By the first different sensing result, first sensing module can judge this button on first direction the position and perpendicular to the position of first direction, then the position of this button on the message input device plane can be judged out.
See also Fig. 5.Fig. 5 shows the synoptic diagram of electronic installation 5 according to a particular embodiment of the invention.As shown in Figure 5, electronic installation 5 comprises load module 50, first optical module 53, first sensing module 54, second optical module 56, second sensing module 57 and processing module 55.Wherein processing module 55 is connected to first sensing module 54 and second sensing module 57.
Wherein load module 50 comprises a plurality of button (not shown) and is arranged at respectively on the surface of load module 50, and a plurality of button has a prominent shape structure (not shown) respectively, and the protruded stigma structure is the cylinder with rectangular cross section.First optical module 53 is arranged at first side of load module 50, in order to along first direction emission multiple tracks first light, and multiple tracks first light corresponding a plurality of buttons respectively.First sensing module 54 is arranged at second side with respect to this first side, in order to receive multiple tracks first light and to produce first sensing result according to first accepting state that receives multiple tracks first light.
Second optical module 56 is arranged at the 3rd side of load module 50, and in order to along second direction emission multiple tracks second light, and multiple tracks second light is also distinguished corresponding a plurality of button.Second sensing module 57 is arranged at the 4th side of the 3rd side relatively, in order to receive multiple tracks second light and to produce second sensing result according to second accepting state that receives multiple tracks second light.
When first button in these a plurality of buttons was pressed, the protruded stigma structure of first button stopped at least one in multiple tracks first light, caused first accepting state to change, and first sensing module 54 is adjusted first sensing result according to first accepting state.The protruded stigma structure of first button stops at least one in multiple tracks second light simultaneously, cause second accepting state to change, second sensing module 57 is adjusted second sensing result according to second accepting state, and processing module 55 is judged the position of first button according to first sensing result and second sensing result.
More specifically, first optical module 53 can further comprise a plurality of first optical units and light source.The light that first optical unit reception light source sends is also launched first light along first direction respectively.First sensing module 54 also further comprises a plurality of first optical sensing unit.Similarly, second optical module 56 can further comprise a plurality of second optical units and light source (can be common light source with the light source of first optical unit also).The light that second optical unit reception light source sends is also launched second light along second direction respectively.Second sensing module 57 also further comprises a plurality of second optical sensing unit.Wherein the function of first optical unit, first optical sensing unit, second optical unit and second optical sensing unit is identical substantially with corresponding relation and above-mentioned specific embodiment between it, and its correlative detail repeats no more in this.
In addition, if the protruded stigma structure of the button of load module 50 below is the cylinder with triangular cross-section, at this moment, electronic installation 5 can omit second optical module 56.In triangular cross-section reflection multiple tracks first light of protruded stigma structure at least one, advance along second direction to produce reflection ray, second sensing module 57 receives these reflection rays and produces second sensing result according to the reflection ray that receives, and processing module 55 is judged position corresponding to this button according to first sensing result and second sensing result on this surface.
The protruded stigma structure of the button below of load module 50 also can be the cylinder with at least one through hole, and this through hole can pass through for first light that first optical module 53 sends.What must pay special attention to is that the button of electronic installation 5 has the prominent shape structure of different hole configuration respectively.Therefore when button is pressed, the sequential difference that heteroid prominent shape structure can make first light be blocked makes the first received sensing result difference of the sensing module 54 of winning.Therefore, first sensing module 54 can be judged the position of this button on the plane of load module 50 according to the first different sensing result.Thus, second optical module 56 and second sensing module 57 of electronic installation 5 can be omitted simultaneously, and further save cost.
In addition, in practical operation, the through hole of above-mentioned prominent shape structure also can be reflecting piece, in order to reflect first light.First sensing module 54 can be arranged at and be same as the first set side of first optical module 53 on the load module 50 this moment, in order to receive first light that is reflected by reflecting piece.Therefore when button is pressed, have the sequential difference that prominent shape structure that different reflecting piece construct can make first light be reflected, thus, the position of this button on the plane of load module 50 can be judged out.
In sum, according to message input device of the present invention and electronic installation, owing to can utilize optical transmitting set and photoelectric sensor can detect the button of being pressed by the user simply.Except the problem that can improve the conventional keyboard complex structure and take up space, optical information input media of the present invention does not need to arrange complicated structure and circuit below button, so simplified design and reduce cost further.
By the detailed description of above preferred specific embodiment, hope can be known description feature of the present invention and spirit more, and is not to come protection scope of the present invention is limited with above-mentioned disclosed preferred specific embodiment.On the contrary, its objective is that hope can contain various modification and be equal to substitute mode in the claim protection domain of institute of the present invention desire application.
The main element symbol description
1,3: message input device
12,42,44,46,48: button 12 ', 32 ': first button
120,120 ', 320 ', 420,440,460,480: prominent shape structure
13,33,103: the first sides of 53: the first optical modules
14,34,104: the second sides of 54: the first sensing modules
15,55: processing module 130,330: the first light
16,106: the three sides of 56: the second optical modules
17,37,107: the four sides of 57: the second sensing modules
160: the second light L
X3, L
Y2: coordinate
13A～13G, 33A～33G: first optical unit
14A～14G, 34A～34G: first optical sensing unit
16A～16L: second optical unit
17A～17L, 37A～37L: second optical sensing unit
5: electronic installation 50: load module.
Claims (32)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910143042 CN101901055B (en) | 2009-05-25 | 2009-05-25 | Information input device and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910143042 CN101901055B (en) | 2009-05-25 | 2009-05-25 | Information input device and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101901055A CN101901055A (en) | 2010-12-01 |
| CN101901055B true CN101901055B (en) | 2013-08-21 |
Family
ID=43226645
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910143042 Expired - Fee Related CN101901055B (en) | 2009-05-25 | 2009-05-25 | Information input device and electronic device |
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| CN (1) | CN101901055B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108170288A (en) * | 2018-01-22 | 2018-06-15 | 广东虹勤通讯技术有限公司 | Notebook computer and keyboard |
| CN109669584A (en) * | 2018-12-11 | 2019-04-23 | 苏州佳世达电通有限公司 | Electronic device and its input system |
| CN110780747A (en) * | 2019-11-12 | 2020-02-11 | 深圳市源隆光学科技有限公司 | keyboard |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6429857B1 (en) * | 1999-12-02 | 2002-08-06 | Elo Touchsystems, Inc. | Apparatus and method to improve resolution of infrared touch systems |
| CN2684261Y (en) * | 2004-03-30 | 2005-03-09 | 于尚民 | An infrared input keyboard |
| CN2921943Y (en) * | 2006-07-13 | 2007-07-11 | 王鹏 | Contact keyboard |
-
2009
- 2009-05-25 CN CN 200910143042 patent/CN101901055B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6429857B1 (en) * | 1999-12-02 | 2002-08-06 | Elo Touchsystems, Inc. | Apparatus and method to improve resolution of infrared touch systems |
| CN2684261Y (en) * | 2004-03-30 | 2005-03-09 | 于尚民 | An infrared input keyboard |
| CN2921943Y (en) * | 2006-07-13 | 2007-07-11 | 王鹏 | Contact keyboard |
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| Publication number | Publication date |
|---|---|
| CN101901055A (en) | 2010-12-01 |
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