CN201662772U - Capacitive touch type keyboard - Google Patents
Capacitive touch type keyboard Download PDFInfo
- Publication number
- CN201662772U CN201662772U CN2009203506946U CN200920350694U CN201662772U CN 201662772 U CN201662772 U CN 201662772U CN 2009203506946 U CN2009203506946 U CN 2009203506946U CN 200920350694 U CN200920350694 U CN 200920350694U CN 201662772 U CN201662772 U CN 201662772U
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- electromagnetic induction
- control circuit
- keyboard
- pcb
- capacitance touch
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Abstract
The utility model provides a capacitive touch type keyboard, which belongs to the field of computer peripheral equipment input. The keyboard comprises a connector, keys, a printed circuit board, soldering trays, an electromagnetic induction antenna board, an electromagnetic induction control circuit and a capacitive touch control circuit, the connector is used for establishing communication between the keyboard and a computer, the soldering trays are arranged on the printed circuit board and used for forming a capacitive touch sensing area, and the electromagnetic induction antenna board is used for forming an electromagnetic induction area. The electromagnetic induction control circuit is connected with the capacitive touch control circuit. The soldering trays for forming the capacitive touch sensing area are connected with the capacitive touch control circuit through wires. The keys are silkscreened on the printed circuit board. The electromagnetic induction circuit transmits the electromagnetic signals transmitted by the electromagnetic induction antenna board and the capacitive touch signals transmitted by the capacitive touch control circuit to the computer via the connector. The keyboard can be completely sealed, and therefore is dustproof and waterproof, and moreover, the keyboard can be easily cleaned.
Description
Technical field
The utility model belongs to field of computer external input equipment, relates to a kind of capacitance touch type keyboard that has function of electromagnetic induction.
Background technology
Computing machine is one of most important scientific and technological achievement on the human science and technology developing history, and that has now used is very extensive.Keyboard is the standard peripherals of computing machine.Keyboard on the market mostly is mechanical key formula keyboard at present, more senior infrared type, microwave induced formula, ray cast formula keyboard or the like in addition, but the function ratio of these keyboards is more single, is mostly to make things convenient for user's input alphabet.And coordinate location device (as handwriting pad, plotting sheet etc.) is as another important computer peripheral equipment, have the quick and easy characteristics of input, different levels crowd's input Chinese character, the difficult problem of letter have been solved, has use value widely, become typical case's representative of non-keyboard input, increasing people accepts and uses handwriting input as computed mode.
In order to take into account user who uses keyboard and the user who uses coordinate location device, the product of integrated keyboard and coordinate setting function has appearred.But, these products only are that keyboard and coordinate location device (as handwriting pad etc.) simply are stitched together, the position difference of Pin Jie mode difference, splicing only, some is that coordinate location device is placed on the keyboard region below, coordinate location device can pull; Some keyboard has been cancelled numeric keypad, substituting be little coordinate location device or the like.Though realized the integration of keyboard and coordinate location device from function, from technical standpoint, these products are not that real meaning realizes keyboard and hand-written technological incorporation.
In addition, the most frequently used mechanical keyboard waterproof and dustproof and anti-greasy dirt performance are not high, and are difficult to clear up the dirt attached on the keyboard.
The most widely used technology of coordinate location device is the electromagnetic type touching technique at present, the electromagnetic type touching technique is owing to the bearing accuracy height, can obtain the writing pencil angle of inclination and the pressure information that are used for the computing machine typing, extremely market favor is widely used in equipment such as handwritten computer, drawing screen, plotting sheet, handwriting pad, mobile phone, e-book.The electromagnetic type coordinate location device is realized by electromagnetic induction antenna plate, electromagnetic induction control panel and time writer.The densely covered coil of regularity on the electromagnetic induction antenna plate by the control and treatment of electromagnetic induction control panel, switches the emission of electromagnetic field at a high speed and receives induced electricity magnetic pen information.Concrete principle of work is: the electromagnetic induction control panel is by electromagnetic induction antenna plate emission electromagnetic field, in the magnetic field range that produces, the time writer of built-in resonance electronic loop can be put aside faint energy, by this energy, time writer after the electromagnetic induction antenna plate receives signal, is given electromagnetic induction control panel with its conduction to electromagnetic induction screen emission electromagnetic signal, handle this signal by control panel, calculate coordinate, angle of inclination, mode of operation such as speed, the pressure sensitivity etc. of time writer.
In recent years, the capacitance touch technology has obtained lots of manufacturers and user's concern.At present the capacitance touch technology has two kinds: the one, and be the contact with the pad PAD of printing board PCB, PAD and cover and have the self-induction capacitor C between the ground
x, be coated with certain thickness non-conductive coverture (as plastics, glass etc.) on the PCB; When user's finger touch is to coverture,, therefore between finger and PAD, will produce inductance capacitance C because human body is a conductor
g, PAD and the electric capacity that covers between the ground will change to some extent like this, from C
xBecome C
x+ C
g,, can calculate the position of finger by detecting PAD and covering capacitance variations between the ground.Another capacitance touch technology is: the PAD with printed circuit board (PCB) is the contact, has mutual inductance C between PAD and the PAD
y, the last same certain thickness non-conductive coverture (as plastics, glass etc.) that covers of PCB.When user's finger touch is to coverture, will produce inductance capacitance C between PAD and the finger
h, influenced the mutual inductance C between PAD and the PAD
yPass through C
yVariation just can detect the position of finger.
The utility model content
Technical problem to be solved in the utility model provides a kind ofly can carry out computer operation with touching input, also can import computer peripheral with computer operation with time writer, and this equipment waterproof and dustproof, is easy to wiping.
For this reason, the utility model provides a kind of capacitance touch type keyboard that has function of electromagnetic induction, this keyboard comprises: the coupling arrangement that is used to set up keyboard and compunication, button, printed circuit board (PCB) is arranged on the welded disc that is used to form the capacitance touch induction zone on the printed circuit board (PCB), the electromagnetic induction antenna plate that is used to form induction areas and electromagnetic induction control circuit and capacitance touch control circuit; Described electromagnetic induction control circuit links to each other with the capacitance touch control circuit; Described button silk-screen is on the surface of printed circuit board (PCB).
Wherein, the surface of described printed circuit board (PCB) is an insulating cover, and described button silk-screen is on insulating cover.
Wherein, the optional position of effective range on surface of keyboard of the induction areas of described electromagnetic induction antenna plate formation.
Wherein, described printed circuit board (PCB) is one, and is at least four layers; The ground floor of described printed circuit board (PCB) and the second layer are used to lay welded disc, and the 3rd layer and the 4th layer of printed circuit board (PCB) is used to lay the electromagnetic induction antenna plate; Other zone of described printed circuit board (PCB) is used to lay electromagnetic induction control circuit and capacitance touch control circuit.
Wherein, described printed circuit board (PCB) is two, and each printed circuit board (PCB) is individual layer, bilayer or multilayer.
Wherein, retain the slit between described two printed circuit board (PCB)s or use insulated coverings to fill, the printed circuit board (PCB) of being close to the insulated coverings upper strata is used to lay welded disc and capacitance touch control circuit, and the printed circuit board (PCB) of being close to insulated coverings lower floor is used to lay electromagnetic induction antenna plate and electromagnetic induction control circuit.
Wherein, the welded disc on the described printed circuit board (PCB) is divided into separate welded disc group, and microprocessor one end of capacitance touch control circuit connects a welded disc group respectively, and the other end links to each other with the microprocessor of electromagnetic induction control circuit; Described electromagnetic induction control circuit connects the electromagnetic induction antenna plate; By described electromagnetic induction control circuit by coupling arrangement to the computer sends the data.
Wherein, the microprocessor of described capacitance touch control circuit is one or more.
Wherein, described keyboard has the signal that a master microprocessor is used to receive capacitance touch control circuit and the transmission of electromagnetic induction control circuit, and sends to computing machine by coupling arrangement.
Wherein, the part welded disc is placed on the ground floor of printed circuit board (PCB), link to each other by lead between this part welded disc, finally be connected to the capacitance touch control circuit, another part welded disc is placed into the second layer of printed circuit board (PCB), links to each other by lead between this part welded disc, finally is connected to the capacitance touch control panel of capacitance touch device, wherein, connect that the lead of ground floor welded disc and connecting intersects between the lead of second layer welded disc but short circuit not.
Wherein, described capacitance touch control circuit, electromagnetic induction antenna plate link to each other with the electromagnetic induction control circuit respectively, and described electromagnetic induction control circuit sends capacitance touch information and the electromagnetic induction information that obtains to computing machine.
Wherein, described keyboard also has a master microprocessor, and described electromagnetic induction control circuit sends to master microprocessor with capacitance touch information and the electromagnetic induction information that obtains, and sends to computing machine by master microprocessor.
Wherein, described coupling arrangement is a USB interface.
The utility model with the electromagnetic induction technology with capacitance touch technological incorporation be in the same place, realized touching input and can use time writer to write the computer keyboard of input again.Keyboard of the present utility model can seal fully, dustproof, waterproof, and easy to clean.
Description of drawings
Fig. 1 is an outward appearance partial schematic diagram of the present utility model;
Fig. 2 lays the first embodiment sectional view of printed circuit board (PCB) for the utility model keyboard;
Fig. 3 lays the second embodiment sectional view of printed circuit board (PCB) for the utility model keyboard;
Fig. 4 is the electrical block diagram of first embodiment of the utility model induction zone and control zone laying.
Fig. 5 is the synoptic diagram that changes of control zone circuit structure among Fig. 4.
Fig. 6 is the electrical block diagram of second embodiment of the utility model induction zone and control zone laying.
Fig. 7 is the synoptic diagram that increases induction areas and electromagnetic induction control circuit among Fig. 6.
The synoptic diagram that Fig. 8 changes for control zone circuit structure among Fig. 7.
Fig. 9 is the partial schematic diagram that the utility model capacitance touch induction zone and button are provided with.
Description of symbols:
11: keyboard, 12: the electromagnetic induction zone;
21: printed circuit board (PCB), 23: non-conductive overlayer;
31: be used for the printed circuit board (PCB) of capacitance touch, 32: be used for the printed circuit board (PCB) that electromagnetic induction touches, 33: nonmetal conductive layer;
41: welded disc, 42: capacitance touch control circuit, 43: the electromagnetic induction control circuit, 44: electromagnetic induction antenna plate, 441: first microprocessor MCU1,442: the second microprocessor MCU2,443: the three microprocessor MCU3,444: the four microprocessor MCU4;
51: welded disc, 52: capacitance touch control circuit, 53: the electromagnetic type control circuit, 54: electromagnetic induction antenna plate, 55: microprocessor MCU, 551: first microprocessor MCU1,552: the second microprocessor MCU2,553: the three microprocessor MCU3,554: the four microprocessor MCU4;
61: welded disc, 62: the capacitance touch control circuit;
71: welded disc, 72: capacitance touch control circuit, 73: the electromagnetic induction control circuit; 74: the electromagnetic induction antenna plate;
81: welded disc, 82: capacitance touch control circuit, 83: electromagnetic type control circuit, 84, electromagnetic induction antenna plate, 85: microprocessor MCU;
90: cover the stratum, 91: welded disc.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is an outward appearance partial schematic diagram of the present utility model.This figure is the button figure of silk-screen at surface of keyboard.The utility model keyboard is divided into induction zone and control zone from the angle of action effect.Induction zone refers to the effective coverage of capacitance touch and electromagnetic induction.Shaded side 12 is the electromagnetic induction zone.Button 11 is the capacitance touch zone and since button be silk-screen in keyboard surface, that is to say that surface of keyboard remains smooth, do not have the rough phenomenon of surface of keyboard in the mechanical key keyboard.The capacitance touch induction zone refers to the distributed areas of capacitance touch pad PAD, and is effective when the touch control operation of this zone.Induction areas refers to the antenna field of electromagnetic type coordinate location device.The control zone is used to be provided with capacitance touch control circuit and electromagnetic induction control circuit, is used for control capacitance and touches and function of electromagnetic induction.
The utility model can be monitored touch location by the capacitance variation that detects PAD and cover between the ground, also can adopt the variation of mutual inductance between PAD and the PAD to come the senses touch position, thereby realize the capacitance touch function.
It should be noted that this figure only is an exemplary plot, only represents the relation of key arrangement and coordinate location device effective range.In fact, in the allowed band of plant bulk described in the utility model, the effective range of electromagnetic type coordinate location device can be in the optional position of device described in the utility model, also can be any size, button also can freely be set as required and not only stick to the key layout of this synoptic diagram.The utility model provides two embodiment about keyboard structure, describes the PAD of the utility model keyboard and the concrete arrangement of control circuit in detail.
Fig. 2 lays the sectional view of first embodiment of printed circuit board (PCB) for the utility model keyboard.In the present embodiment, use a multilayer board PCB to lay the induction zone and the control circuit of capacitance touch, electromagnetic induction.General multi-layer PCB is not less than 4 layers.Wherein the ground floor and the second layer are used for laying capacitance touch PAD, and the 3rd layer and the 4th layer is used for laying the electromagnetic induction antenna.Other zones of multi-layer PCB are used for laying the control panel circuit of capacitance touch and electromagnetic induction.Suitable setpoint distance between ground floor, the second layer and the 3rd layer, the 4th layer can not cause obstacle in the use to guarantee electromagnetic touch to capacitance touch.At PCB surface coverage one deck certain thickness nonmetal coverture is arranged, by the non-conductive overlayer that nonmetal coverture forms, wrapping up of whole PCB is complete, sealing can realize waterproof and dustproof, and be convenient to clean.Nonmetal coverture is plastic materials such as glass or acrylic.
Fig. 3 lays the second embodiment sectional view of printed circuit board (PCB) for the utility model keyboard.In the present embodiment, adopt two independently PCB laying induction zone and control zones.PCB can be individual layer, bilayer or multilayer.Retain the slit between two pcb boards or use insulated coverings to fill.When using insulated coverings to fill, the PCB that is used to lay capacitance touch is close to the upper strata of insulated coverings, and the PCB that is used to lay electromagnetic induction is close to the lower floor of insulated coverings.At this moment, can be that the control circuit of capacitance touch and the PAD district of capacitance touch are same PCB, control circuit that electromagnetism is hand-written and antenna field are same PCB, two PCB are independent mutually, link to each other by connector, carry out data communication.
The circuit of the utility model induction zone and control zone is laid can multiple mode, as: capacitance touch PCB control circuit and electromagnetic induction Circuit Design are on a PCB, and PAD district and the hand-written antenna field of electromagnetism by lead and capacitance touch are connected.Wherein, the PAD district of the control circuit of capacitance touch, the control circuit of electromagnetic induction and capacitance touch can be same PCB, links to each other with the antenna field of electromagnetic induction by connector.
Fig. 4 is the circuit diagram of first embodiment of the utility model induction zone and control zone laying.In the present embodiment, each PAD group that is used to lay capacitance touch is separate.Among the figure, the MCU1 in the capacitance touch control circuit, MCU2, MCU3 connect each PAD group respectively.The electromagnetic induction control circuit connects the electromagnetic induction antenna plate, to realize the coordinate setting function.Though the corresponding PAD group of each MCU among this figure, each PAD group has 6 PAD, the simplification that this just makes for convenience of description.In fact, more than six of the PAD in the PAD of each the MCU correspondence group may be 1,10,30,60 or more, determines the number of PAD in the PAD group according to the load capacity of MCU.In addition, MCU1, MCU2, MCU3 also are an approximate number, can be more, and also can still less, so only need a MCU just much of that if the load capacity of a MCU can satisfy the number of the required PAD of button on the computer keyboard.In the present embodiment, each MCU of capacitance touch control circuit links to each other with the MCU4 of electromagnetic induction control circuit respectively, can link to each other by various interfaces (but being not limited only to these interfaces) such as serial ports, SPI, I2C or IO mouths.After just the capacitance touch control circuit sends to the electromagnetic induction control circuit with the touch information that collects, send to computing machine by the electromagnetic induction control circuit again.The electromagnetic induction control circuit sends the data to computing machine by USB interface (but being not limited to USB interface).In addition, in order to simplify circuit structure, the MCU4 of electromagnetic induction control circuit also can directly control PAD and realize the capacitance touch function, and like this, the control MCU of capacitance touch control circuit (MCU1, MCU2, MCU3...) can remove or reduce quantity.
Fig. 5 is the synoptic diagram that control circuit changes among Fig. 4.Compare with the circuit diagram of Fig. 4, present embodiment increases by a main MCU, the MCU4 of the MCU1 of capacitance touch, MCU2, MCU3 and electromagnetic touch control circuit links to each other with main MCU by interface (as interface or I/O mouths such as SPI, I2C), sends the data to computing machine by main MCU.As shown in Figure 4, in order to simplify circuit structure, the MCU4 of electromagnetic induction control circuit also can directly control PAD and realize the capacitance touch function, and like this, the control MCU of capacitance touch control circuit (MCU1, MCU2, MCU3...) can remove or reduce quantity.Also each MCU among the figure can be integrated, be integrated into a MCU, realize capacitance touch and function of electromagnetic induction with main MCU.
Fig. 6 is the circuit diagram of second embodiment of the utility model induction zone and control zone laying.In the present embodiment, being the induction zone and the control zone of laying capacitance touch on the PCB of an integral body, is example with Shift, Z, X, C quadruple linkage.Among the figure, unblanketed rhombus PAD is placed on the ground floor of PCB, links to each other by lead between rhombus, finally is connected on the capacitance touch control circuit.The rhombus PAD of band shade is placed into the second layer of PCB, equally also is to connect each rhombus by lead, finally is connected on the capacitance touch control circuit.Intersect with the lead that is connected second layer rhombus PAD though connect the lead of ground floor rhombus PAD, not short circuit.Shift, Z, X, C are the silk-screen layer, and silk-screen is to the non-conductive overlayer of PCB.After finger touches arrived Shift scope arbitrfary point, the capacitance touch control circuit calculated the position of this point, and the interface of this positional information by device described in the utility model is sent on the computing machine, thereby triggered the shift key.Perhaps after finger touches arrives Shift scope arbitrfary point, the positional information that the capacitance touch control circuit will be put sends to computing machine by the interface of device described in the utility model, driving by computer terminal calculates shift key by the coordinate correspondence, thereby triggers shift key.Other buttons for device described in the utility model all can be drawn by the method for present embodiment.In addition, need to prove that the simplification that rhombus PAD is for convenience of description to be done among this figure is handled, in fact, PAD is rhombus not necessarily.For the principle of capacitance touch, not in protection domain of the present utility model.For electromagnetic induction antenna plate as the coordinate indicating device, can be laid in the optional position, below of capacitance touch circuit, but must not be at the ground floor or the second layer.
Fig. 7 increases the synoptic diagram of induction areas and electromagnetic induction control circuit for Fig. 6.Latticed rectangle among the figure is the electromagnetic induction antenna plate.The capacitance touch control circuit links to each other with the electromagnetic induction control circuit among the figure, and with the capacitance touch value that obtains by interface (as interfaces such as SPI, but be not limited to the SPI interface) send to the electromagnetic induction control circuit, and then send the data to computing machine by the electromagnetic induction control circuit.The electromagnetic induction antenna plate also sends to computing machine with the information of time writer.Though the electromagnetic induction antenna plate is littler than the PAD district among this figure,, do not represent the electromagnetic induction antenna plate necessarily little than the PAD district only as synoptic diagram.There is the electromagnetic induction control panel that information is sent to computing machine though it should be noted that this figure indication, in fact also can links to each other with computing machine, send capacitance touch information and electromagnetic touch information by the capacitance touch circuit.
The synoptic diagram that Fig. 8 changes for control circuit structure among Fig. 7.Among the figure, capacitor control circuit is the capacitance touch information that obtains, and the electromagnetic induction control circuit sends to main MCU with the information of the time writer that obtains by interface (as the SPI interface, but being not limited to the SPI interface), and sends to computing machine by main MCU.
Fig. 9 is the partial schematic diagram that the utility model capacitance touch induction zone and button are provided with.In the present embodiment, corresponding one or more PAD of each key position, according to the size of button, single PAD or a plurality of PAD constitute a complete button.Cover ground around the PAD, utilizing to point influences between PAD and the ground inductance capacitance and tests finger position.Present embodiment is an example with the Shift in the keyboard, Z, four buttons of X, C.Among the figure, because Z, X, C button are less, so can be that each button can be with one or more PAD correspondence.And shift key is bigger, can be with two or more PAD correspondences.Certainly, the corresponding shift key of PAD also is fine.Among this figure, Z, X, C key each with a PAD correspondence, and shift key is with two PAD correspondences, each PAD is connected on the MCU, detects corresponding PAD by MCU, point the PAD that is touched if finger touch to PAD, can be judged by MCU, and then the judgement key assignments.Other buttons of device described in the utility model also connect as mode as described in the present embodiment.
It should be noted that the foregoing description is example just to being convenient to explanation.Those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (14)
1. capacitance touch type keyboard, comprise, be used to set up the coupling arrangement of keyboard and compunication, it is characterized in that, also comprise button, printed circuit board (PCB) is arranged on the welded disc that is used to form the capacitance touch induction zone on the printed circuit board (PCB), the electromagnetic induction antenna plate that is used to form induction areas and electromagnetic induction control circuit and capacitance touch control circuit; Described electromagnetic induction control circuit links to each other with the capacitance touch control circuit; Described button is to be imprinted on the surface of printed circuit board (PCB).
2. keyboard as claimed in claim 1 is characterized in that, the surface of described printed circuit board (PCB) is an insulating cover, and described button is to be imprinted on the insulating cover.
3. keyboard as claimed in claim 1 is characterized in that, the optional position of effective range on surface of keyboard of the induction areas that described electromagnetic induction antenna plate forms.
4. keyboard as claimed in claim 1 is characterized in that, described printed circuit board (PCB) is one, and is at least four layers; The ground floor of described printed circuit board (PCB) and the second layer are used to lay welded disc, and the 3rd layer and the 4th layer of printed circuit board (PCB) is used to lay the electromagnetic induction antenna plate; Other zone of described printed circuit board (PCB) is used to lay electromagnetic induction control circuit and capacitance touch control circuit.
5. keyboard as claimed in claim 1 is characterized in that, described printed circuit board (PCB) is two, and each printed circuit board (PCB) is individual layer, bilayer or multilayer.
6. keyboard as claimed in claim 5 is characterized in that, retains the slit between described two printed circuit board (PCB)s.
7. keyboard as claimed in claim 5, it is characterized in that, use insulated coverings to fill between described two printed circuit board (PCB)s, the printed circuit board (PCB) of being close to the insulated coverings upper strata is used to lay welded disc and capacitance touch control circuit, and the printed circuit board (PCB) of being close to insulated coverings lower floor is used to lay electromagnetic induction antenna plate and electromagnetic induction control circuit.
8. as claim 4 or 5 described keyboards, it is characterized in that, welded disc on the described printed circuit board (PCB) is divided into separate welded disc group, and microprocessor one end of capacitance touch control circuit connects a welded disc group respectively, and the other end links to each other with the microprocessor of electromagnetic induction control circuit; Described electromagnetic induction control circuit connects the electromagnetic induction antenna plate; By described electromagnetic induction control circuit by coupling arrangement to the computer sends the data.
9. keyboard as claimed in claim 8 is characterized in that, the microprocessor of described capacitance touch control circuit is one or more.
10. keyboard as claimed in claim 9 is characterized in that, described keyboard has the signal that a master microprocessor is used to receive capacitance touch control circuit and the transmission of electromagnetic induction control circuit, and sends to computing machine by coupling arrangement.
11. keyboard as claimed in claim 4, it is characterized in that, the part welded disc is placed on the ground floor of printed circuit board (PCB), link to each other by lead between this part welded disc, finally be connected to the capacitance touch control circuit, another part welded disc is placed into the second layer of printed circuit board (PCB), link to each other by lead between this part welded disc, finally be connected to the capacitance touch control panel of capacitance touch device, wherein, connect that the lead of ground floor welded disc and connecting intersects between the lead of second layer welded disc but short circuit not.
12. keyboard as claimed in claim 11, it is characterized in that, described capacitance touch control circuit, electromagnetic induction antenna plate link to each other with the electromagnetic induction control circuit respectively, and described electromagnetic induction control circuit sends capacitance touch information and the electromagnetic induction information that obtains to computing machine.
13. keyboard as claimed in claim 12, it is characterized in that, described keyboard also has a master microprocessor, and described electromagnetic induction control circuit sends to master microprocessor with capacitance touch information and the electromagnetic induction information that obtains, and sends to computing machine by master microprocessor.
14. keyboard as claimed in claim 1 is characterized in that, described coupling arrangement is a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203506946U CN201662772U (en) | 2009-12-29 | 2009-12-29 | Capacitive touch type keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203506946U CN201662772U (en) | 2009-12-29 | 2009-12-29 | Capacitive touch type keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662772U true CN201662772U (en) | 2010-12-01 |
Family
ID=43233190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203506946U Expired - Lifetime CN201662772U (en) | 2009-12-29 | 2009-12-29 | Capacitive touch type keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662772U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571059A (en) * | 2012-01-06 | 2012-07-11 | 陈建平 | Water-pouring-preventing capacitive touch button |
| CN102751971A (en) * | 2012-07-19 | 2012-10-24 | 海芯科技(厦门)有限公司 | Capacitive touch button and design method thereof |
| CN103677470A (en) * | 2013-11-25 | 2014-03-26 | 泰凌微电子（上海）有限公司 | Capacitance and electromagnetism dual-mode touch system |
| CN104465184A (en) * | 2013-09-18 | 2015-03-25 | 联想(北京)有限公司 | Input device and electronic device using input device |
| US9298273B2 (en) | 2013-09-13 | 2016-03-29 | Beijing Lenovo Software Ltd. | Input device having grooves and corresponding sensing units |
| CN107077240A (en) * | 2014-06-25 | 2017-08-18 | 森赛尔股份有限公司 | Tactile touch sensing system and method |
| US11221706B2 (en) | 2013-09-27 | 2022-01-11 | Sensel, Inc. | Tactile touch sensor system and method |
| US11520454B2 (en) | 2013-09-27 | 2022-12-06 | Sensel, Inc. | Touch sensor detector system and method |
| WO2024032547A1 (en) * | 2022-08-09 | 2024-02-15 | 广州虚线电子有限公司 | Touch-control key cap, keyboard, and keyboard touch-control input assembly |
-
2009
- 2009-12-29 CN CN2009203506946U patent/CN201662772U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571059A (en) * | 2012-01-06 | 2012-07-11 | 陈建平 | Water-pouring-preventing capacitive touch button |
| CN102751971A (en) * | 2012-07-19 | 2012-10-24 | 海芯科技(厦门)有限公司 | Capacitive touch button and design method thereof |
| US9298273B2 (en) | 2013-09-13 | 2016-03-29 | Beijing Lenovo Software Ltd. | Input device having grooves and corresponding sensing units |
| CN104465184B (en) * | 2013-09-18 | 2017-01-11 | 联想(北京)有限公司 | Input device and electronic device using input device |
| CN104465184A (en) * | 2013-09-18 | 2015-03-25 | 联想(北京)有限公司 | Input device and electronic device using input device |
| US11221706B2 (en) | 2013-09-27 | 2022-01-11 | Sensel, Inc. | Tactile touch sensor system and method |
| US11520454B2 (en) | 2013-09-27 | 2022-12-06 | Sensel, Inc. | Touch sensor detector system and method |
| US11650687B2 (en) | 2013-09-27 | 2023-05-16 | Sensel, Inc. | Tactile touch sensor system and method |
| US11809672B2 (en) | 2013-09-27 | 2023-11-07 | Sensel, Inc. | Touch sensor detector system and method |
| CN103677470B (en) * | 2013-11-25 | 2017-03-08 | 泰凌微电子（上海）有限公司 | Electric capacity and electromagnetism dual-mode touch system |
| CN103677470A (en) * | 2013-11-25 | 2014-03-26 | 泰凌微电子（上海）有限公司 | Capacitance and electromagnetism dual-mode touch system |
| CN107077240A (en) * | 2014-06-25 | 2017-08-18 | 森赛尔股份有限公司 | Tactile touch sensing system and method |
| CN107077240B (en) * | 2014-06-25 | 2021-07-20 | 森赛尔股份有限公司 | Haptic touch sensor system and method |
| WO2024032547A1 (en) * | 2022-08-09 | 2024-02-15 | 广州虚线电子有限公司 | Touch-control key cap, keyboard, and keyboard touch-control input assembly |
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