CN104836563A - Key, terminal device and method for determining stroke of key - Google Patents
Key, terminal device and method for determining stroke of key Download PDFInfo
- Publication number
- CN104836563A CN104836563A CN201510206241.6A CN201510206241A CN104836563A CN 104836563 A CN104836563 A CN 104836563A CN 201510206241 A CN201510206241 A CN 201510206241A CN 104836563 A CN104836563 A CN 104836563A
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- China
- Prior art keywords
- processing unit
- signal processing
- pedestal
- induction
- button
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Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 97
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 79
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229960001866 silicon dioxide Drugs 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
Landscapes
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention discloses a key, a terminal device and a method for determining the stroke of the key and belongs to the key technical field. The objective of the invention is to benefit the assembly and production of the key. The key includes a keycap, a connecting unit, an induction base and a capacitance signal processing unit; the keycap is connected with the induction base through the connecting unit; the capacitance signal processing unit is arranged on the induction base; when the key is pressed, the capacitance of the induction base changes; and when sensing the change of the capacitance of the induction base, the capacitance signal processing unit determines the stroke of the key. The structure of the key of the invention is simple, and therefore, the assembly and production of the key can be benefited.
Description
Technical field
The present invention relates to button technical field, particularly a kind of button, a kind of terminal equipment and determine the method for key stroke.
Background technology
At present, analogue-key majority adds the mode such as carbon film, Hall by potentiometer and silicagel pad and realizes.Wherein, add by potentiometer and silicagel pad the press-key structure design that carbon film mode realizes more complicated, and error is comparatively large, and structure precision is required higher by the analogue-key that Hall mode realizes.Therefore, assembling is produced to utilize button implementation of the prior art to be all unfavorable for.
Summary of the invention
In view of this, main purpose of the present invention is a kind of a kind of method providing button, terminal equipment and determine key stroke, produces in order to the assembling being conducive to button.
For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, embodiments provide a kind of button, comprising: keycap, linkage unit, induction pedestal, capacitance signal processing unit;
Described keycap is connected with described induction pedestal by described linkage unit, and described capacitance signal processing unit is arranged on described induction pedestal;
When button is pressed, the capacitance variations of described induction pedestal; Described capacitance signal processing unit determines the stroke of described button according to the change of the electric capacity of the described induction pedestal sensed.
Wherein, described induction pedestal comprises induction electrode and pedestal, and described induction electrode is arranged on described pedestal;
Described keycap is connected with described pedestal by described linkage unit;
Described capacitance signal processing unit is arranged on described pedestal, is connected with described induction electrode;
Described signal processing unit is arranged on described pedestal.
Wherein, described induction pedestal comprises the pedestal being embedded with induction electrode.
Wherein, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit;
Described capacitive sensing unit, described signal processing unit are arranged on described induction pedestal, and described signal processing unit is connected with described capacitive sensing unit;
When button is pressed, described capacitive sensing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and described signal value output is sent to described signal processing unit;
Described signal processing unit determines the stroke of described button according to described signal value output.
Wherein, described signal processing unit comprises: microprocessor and memory;
Wherein, described microprocessor, after receiving described signal value output, utilizes the stroke of described memory determination button;
Or described signal processing unit comprises microprocessor, the stroke of button directly determined by described microprocessor after receiving described signal value output.
Wherein, described induction electrode comprises solid copper sheet or hollow copper sheet, and described linkage unit comprises spring or silicagel pad, and described capacitive sensing unit comprises capacitive sensing chip.
Compared with prior art, the invention has the beneficial effects as follows:
By describing above and can finding out, in embodiments of the present invention, the change by means of only the capacitance of the induction machine included by induction pedestal just can determine the stroke of button, and thus, press-key structure simplicity of design of the present invention, is conducive to assembling and produces
Second aspect, embodiments provides a kind of terminal equipment, comprises aforesaid button.
Compared with prior art, the invention has the beneficial effects as follows:
Due to the press-key structure simplicity of design that this terminal equipment comprises, be easy to assembling and produce, thus this terminal equipment is also comparatively easy to assembling production.
Second aspect, embodiments provides the method determining aforementioned keys stroke, comprising:
When button is pressed, the capacitance signal processing unit of button responds to the change of the electric capacity of the induction pedestal of described button;
Described capacitance signal processing unit determines the stroke of described button according to the change of the electric capacity of the induction pedestal of the described button sensed.
Wherein, when described induction pedestal comprises induction electrode and pedestal, the change of the electric capacity of the described induction electrode of described capacitance signal processing unit induction; When described induction pedestal comprises the pedestal being embedded with induction electrode, described capacitance signal processing unit induction is embedded in the change of the electric capacity of the induction electrode in induction pedestal.
Wherein, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit;
Described capacitive sensing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and described signal value output is sent to described signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output;
Or described capacitance signal processing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and determines the stroke of described button according to described signal value output.
Compared with prior art, the invention has the beneficial effects as follows:
Because the structure of button is simple, therefore utilize the method determination key stroke of the embodiment of the present invention more for convenience, practical.
Accompanying drawing explanation
Fig. 1 is the first schematic diagram of the button of the embodiment of the present invention;
Fig. 2 is the second schematic diagram of the button of the embodiment of the present invention;
Fig. 3 is the 3rd schematic diagram of the button of the embodiment of the present invention;
Fig. 4 is the schematic diagram of induction electrode in the embodiment of the present invention;
Fig. 5 is the method flow diagram of embodiment of the present invention determination key stroke.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1, the button of the embodiment of the present invention, comprising: keycap 11, linkage unit 12, induction pedestal 13, capacitance signal processing unit 14.
Wherein, described keycap 11 is connected with described induction pedestal 13 by described linkage unit 12; Described capacitance signal processing unit 14 is arranged on described induction pedestal 13.When button is pressed, the capacitance variations of described induction pedestal; Described capacitance signal processing unit determines the stroke of described button according to the change of the electric capacity of the described induction pedestal sensed.
Wherein, in this embodiment, described induction pedestal refer to the change of its capacitance can sensed pedestal.
Concrete, as shown in Figure 2, described induction pedestal 13 comprises induction electrode 131 and pedestal 132, and described induction electrode 131 is arranged on described pedestal 132.Now, described keycap 11 is connected with described pedestal 132 by described linkage unit 12.Described capacitance signal processing unit (not shown) is arranged on described pedestal 132, is connected with described induction electrode.Or described induction pedestal can also comprise the pedestal being embedded with induction electrode, that is in the case, described induction electrode and pedestal form as one.
Respectively as shown in Figures 2 and 3, described linkage unit comprises the elastic component such as silicagel pad (as shown in Figure 2) or spring (as shown in Figure 3).Described pedestal can be PCB (Printed circuit board, printed circuit board (PCB)) plate.In a particular application, as shown in Figure 4, described induction electrode comprises solid copper sheet or hollow copper sheet.This is relevant with the model of capacitive sensing unit specifically to select which kind of copper sheet.Described capacitive sensing unit comprises capacitive sensing chip.
In embodiments of the present invention, described capacitance signal processing unit can for being integrated with the chip of capacitive sensing unit, signal processing unit.Now, described capacitance signal processing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and determines the stroke of described button according to described signal value output
Or described capacitance signal processing unit can comprise: capacitive sensing unit, signal processing unit.Wherein, described capacitive sensing unit, described signal processing unit are arranged on described induction pedestal, and described signal processing unit is connected with described capacitive sensing unit.When button is pressed, described capacitive sensing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and described signal value output is sent to described signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output.
Wherein, described signal processing unit comprises: microprocessor and memory.When a user presses a key, the distance between finger and induction electrode reduces, and the capacitance therefore on induction electrode increases.Capacitance change on capacitive sensing chip detecting real-time induction electrode, and its capacitance is converted to the signal value output of corresponding numeral, this signal value output is sent to microprocessor.Described microprocessor after receiving described signal value output, according to the stroke of the program determination button stored in described memory.Certainly, in order to further cost-saving, described signal processing unit also can only include microprocessor, and this microprocessor itself is provided with memory cell, is used for storage program.Now, described microprocessor after receiving described signal value output, according to the stroke of the program determination button of self cell stores of described microprocessor.
By describing above and can finding out, in embodiments of the present invention, the change by means of only the capacitance of the induction machine responded to included by pedestal just can determine the stroke of button, thus, it is simple that button scheme of the present invention has structural design, and cost is low, the advantages such as highly sensitive, reliability is high, easy assembling.
The embodiment of the present invention additionally provides a kind of terminal equipment, and described terminal equipment comprises aforesaid button.Wherein, described terminal equipment can comprise mobile terminal, such as mobile phone etc.Due to the press-key structure simplicity of design that this terminal equipment comprises, be easy to assembling and produce, thus this terminal equipment is also comparatively easy to assembling production.
As shown in Figure 5, the embodiment of the present invention additionally provides a kind of method determining above-mentioned key stroke, comprising:
Step 41, when button is pressed, the capacitance signal processing unit of button responds to the change of the electric capacity of the induction pedestal of described button;
Step 42, described capacitance signal processing unit determine the stroke of described button according to the change of the electric capacity of the induction pedestal of the described button sensed.
Can find out according to above description, induction pedestal can comprise different structures.When described induction pedestal comprises induction electrode and pedestal, step 41 is specially the change of the electric capacity of the described induction electrode of described capacitance signal processing unit induction; When described induction pedestal comprises the pedestal being embedded with induction electrode, step 41 is specially the change that the induction of described capacitance signal processing unit is embedded in the electric capacity of the induction electrode in induction pedestal.
Wherein, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit.Now, described capacitive sensing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and described signal value output is sent to described signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output.Or described capacitance signal processing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and determines the stroke of described button according to described signal value output.
Because the structure of button is simple, therefore utilize the method determination key stroke of the embodiment of the present invention more for convenience, practical.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. a button, is characterized in that, comprising: keycap, linkage unit, induction pedestal, capacitance signal processing unit;
Described keycap is connected with described induction pedestal by described linkage unit, and described capacitance signal processing unit is arranged on described induction pedestal;
When button is pressed, the capacitance variations of described induction pedestal; Described capacitance signal processing unit determines the stroke of described button according to the change of the electric capacity of the described induction pedestal sensed.
2. button according to claim 1, is characterized in that, described induction pedestal comprises induction electrode and pedestal, and described induction electrode is arranged on described pedestal;
Described keycap is connected with described pedestal by described linkage unit;
Described capacitance signal processing unit is arranged on described pedestal, is connected with described induction electrode;
Described signal processing unit is arranged on described pedestal.
3. button according to claim 1, is characterized in that, described induction pedestal comprises the pedestal being embedded with induction electrode.
4., according to the arbitrary described button of claim 1-3, it is characterized in that, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit;
Described capacitive sensing unit, described signal processing unit are arranged on described induction pedestal, and described signal processing unit is connected with described capacitive sensing unit;
When button is pressed, described capacitive sensing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and described signal value output is sent to described signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output.
5. button according to claim 4, is characterized in that, described signal processing unit comprises: microprocessor and memory; Described microprocessor, after receiving described signal value output, utilizes the stroke of described memory determination button;
Or described signal processing unit comprises microprocessor, the stroke of button directly determined by described microprocessor after receiving described signal value output.
6. the button according to Claims 2 or 3, is characterized in that, described induction electrode comprises solid copper sheet or hollow copper sheet, and described linkage unit comprises spring or silicagel pad, and described capacitive sensing unit comprises capacitive sensing chip.
7. a terminal equipment, is characterized in that, described terminal equipment comprises the arbitrary described button of aforementioned claim 1-6.
8. determine a method for the arbitrary described key stroke of claim 1-6, it is characterized in that, comprising:
When button is pressed, the capacitance signal processing unit of button responds to the change of the electric capacity of the induction pedestal of described button;
Described capacitance signal processing unit determines the stroke of described button according to the change of the electric capacity of the induction pedestal of the described button sensed.
9. method according to claim 8, is characterized in that,
When described induction pedestal comprises induction electrode and pedestal, the change of the electric capacity of the described induction electrode of described capacitance signal processing unit induction; When described induction pedestal comprises the pedestal being embedded with induction electrode, described capacitance signal processing unit induction is embedded in the change of the electric capacity of the induction electrode in induction pedestal.
10. method according to claim 8 or claim 9, it is characterized in that, described capacitance signal processing unit comprises: capacitive sensing unit, signal processing unit; Described capacitive sensing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and described signal value output is sent to described signal processing unit; Described signal processing unit determines the stroke of described button according to described signal value output;
Or described capacitance signal processing unit generates signal value output according to the change of the electric capacity of the described induction pedestal sensed, and determines the stroke of described button according to described signal value output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206241.6A CN104836563B (en) | 2015-04-27 | 2015-04-27 | A kind of button, a kind of terminal device and the method for determining key stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206241.6A CN104836563B (en) | 2015-04-27 | 2015-04-27 | A kind of button, a kind of terminal device and the method for determining key stroke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104836563A true CN104836563A (en) | 2015-08-12 |
| CN104836563B CN104836563B (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510206241.6A Active CN104836563B (en) | 2015-04-27 | 2015-04-27 | A kind of button, a kind of terminal device and the method for determining key stroke |
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| Country | Link |
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| CN (1) | CN104836563B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080137A (en) * | 2015-08-28 | 2015-11-25 | 青岛歌尔声学科技有限公司 | Press key, gamepad and action signal output method |
| CN107379780A (en) * | 2017-08-09 | 2017-11-24 | 东莞市叁和激光科技有限公司 | A kind of food pack is packed for laser marking machine |
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| US20100171646A1 (en) * | 2008-02-08 | 2010-07-08 | Rohm Co., Ltd. | Remote control apparatus using electrostatic sensor |
| CN201548919U (en) * | 2009-12-05 | 2010-08-11 | 温雪眉 | Capacitance sensing type mouse |
| CN203706979U (en) * | 2013-12-31 | 2014-07-09 | 上海意力寰宇电路世界有限公司 | Elastic sheet type capacitor touch thin film switch |
| CN204009756U (en) * | 2014-06-24 | 2014-12-10 | 黄晓生 | Electrostatic capacity type is contactless keyboard |
| CN204707114U (en) * | 2015-04-27 | 2015-10-14 | 青岛歌尔声学科技有限公司 | A kind of button, a kind of terminal equipment |
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2015
- 2015-04-27 CN CN201510206241.6A patent/CN104836563B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100171646A1 (en) * | 2008-02-08 | 2010-07-08 | Rohm Co., Ltd. | Remote control apparatus using electrostatic sensor |
| CN201548919U (en) * | 2009-12-05 | 2010-08-11 | 温雪眉 | Capacitance sensing type mouse |
| CN203706979U (en) * | 2013-12-31 | 2014-07-09 | 上海意力寰宇电路世界有限公司 | Elastic sheet type capacitor touch thin film switch |
| CN204009756U (en) * | 2014-06-24 | 2014-12-10 | 黄晓生 | Electrostatic capacity type is contactless keyboard |
| CN204707114U (en) * | 2015-04-27 | 2015-10-14 | 青岛歌尔声学科技有限公司 | A kind of button, a kind of terminal equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080137A (en) * | 2015-08-28 | 2015-11-25 | 青岛歌尔声学科技有限公司 | Press key, gamepad and action signal output method |
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| CN107379780A (en) * | 2017-08-09 | 2017-11-24 | 东莞市叁和激光科技有限公司 | A kind of food pack is packed for laser marking machine |
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| Publication number | Publication date |
|---|---|
| CN104836563B (en) | 2018-07-31 |
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Effective date of registration: 20240506 Address after: 266104 No. 500, Songling Road, Laoshan District, Qingdao, Shandong Patentee after: GOERTEK TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 266061 5, 3 building, Fortune Plaza, 18 Qinling Mountains Road, Laoshan District, Qingdao, Shandong. Patentee before: QINGDAO GOERTEK TECHNOLOGY Co.,Ltd. Country or region before: China |