CN110033974A - Keyboard - Google Patents
Keyboard Download PDFInfo
- Publication number
- CN110033974A CN110033974A CN201810030684.8A CN201810030684A CN110033974A CN 110033974 A CN110033974 A CN 110033974A CN 201810030684 A CN201810030684 A CN 201810030684A CN 110033974 A CN110033974 A CN 110033974A
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- China
- Prior art keywords
- key
- information
- keyboard
- switch
- route
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/704—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by the layers, e.g. by their material or structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
- H01H13/807—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the spatial arrangement of the contact sites, e.g. superimposed sites
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/002—Calculator, computer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/03—Avoiding erroneous switching
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
The present invention relates to a kind of keyboards, including multiple keys, support plate and film switch circuit.Film switch circuit includes key switch and the first lower key switch on first, and key switch can export the first key information corresponding to key when being triggered by key on first.First lower key switch can export the second key information corresponding to key when being triggered by key.Control unit is connected to film switch circuit, can based on the received the first key information and the second key information and export corresponding push button signalling.And when control unit only receives the first key information or the second key information, control unit not output key signal.Keyboard of the invention can occur to avoid Ghost Key.
Description
Technical field
The present invention relates to a kind of keyboards, more particularly to include the keyboard of film switch circuit.
Background technique
Common computer peripheral input unit includes mouse, keyboard and trace ball etc., and wherein keyboard can directly key in text
Word and symbol give computer, therefore the attention quite by user and input unit manufacturer.Wherein, relatively conventional is one
Kind includes the keyboard of scissor connecting element.
Will be illustrated next include scissor connecting element keyboard framework.Referring to Fig. 1, it is the knot of existing keyboard
Structure diagrammatic cross-section.Existing keyboard 1 includes multiple keys 10, film switch circuit 11 and support plate 12, and each key 10
Including button cap 101, scissor connecting element 102 and elastic element 103.In key 10, button cap 101 is revealed in existing key
It can be pressed by user except disk 1, scissor connecting element 102 is and elastic to connect button cap 101 and support plate 12
Element 103 passes through scissor connecting element 102 and contacts respectively with button cap 101 and film switch circuit 11.Support plate 12
Positioned at the lower section of film switch circuit 11, can carry button cap 101, scissor connecting element 102, elastic element 103 and
Film switch circuit 11 is thereon.
Film switch circuit 11 includes upper wiring board 111, separate layer 112 and lower wiring board 113, and upper wiring board 111 has
There are multiple upper contacts 1111, separate layer 112 is located at the lower section of upper wiring board 111, and has corresponding to multiple upper contacts 1111
Multiple separate layer apertures 1121.And lower wiring board 113 is located at the lower section of separate layer 112, has and corresponds to multiple upper contacts
1111 multiple lower contacts 1131, form multiple press-button contacts with multiple upper contacts 1111.On the other hand, each elastic element
103 be to be set on film switch circuit 11 and correspond to a press-button contact.
The operation situation that the key 10 of existing keyboard 1 is pressed by user will be illustrated next.In Fig. 1, when user presses
When button cap 101,101 stress of button cap and pushing against scissor connecting element 102 makes its movement, therefore button cap 101 can be relative to
Support plate 12 moves down and presses corresponding elastic element 103.At this point, deformation occurs and presses film for elastic element 103
Switching circuit 11 is to trigger the key switch of film switch circuit 11, so that film switch circuit 11 exports corresponding key letter
Number.And when user stop press button cap 101 when, the no longer stress of button cap 101 and stop pressing elastic element 103 so that
Elastic element 103 restores to the original state in response to its elasticity, while providing elastic restoring force up, therefore button cap 101 is pushed away
Go back to the position before being touched.Above-mentioned structure and operation situation for existing keyboard.
Wherein, the major design mode of keyboard is to line up multiple keys matrix form (KeyboardMatrix), definition
For keyboard matrix.When user presses button cap, by keyboard controller (KeyboardController) according to column
(Column) with the information of row (Row), and can go out to be pressed the key information of button cap by user, with and export corresponding press
Key signals.The cross-point of each row and column corresponds to a press-button contact, when button cap is triggered, keyboard control in keyboard matrix
Device processed will do it the scanning of ranks, be which button cap is touched with inquiry.For example, keyboard controller can sequentially scan key
Each column of disk matrix, if also Mr. Yu's a line receives corresponding signal, keyboard control when keyboard controller is scanned to a certain column
Device processed can based on the received line information and judge it is which button cap is touched.
The minimum matrix unit that can be formed in keyboard matrix is made of four keys, presses any one in four keys
Corresponding push button signalling can be smoothly exported when a key.When arbitrarily pressing two keys, keyboard controller also can be according to row
Column information and judge which key and be triggered.But when pressing wantonly three keys simultaneously, keyboard matrix can transmit two row letters
Breath and two column informations to keyboard controller, since two rows and two column can form four keys altogether, keyboard controller can not
Only relying on line information and extrapolating in four keys is which three key is touched.Wherein, it is mistaken for leading under this situation
The 4th logical key, i.e. referred to as Ghost Key (GhostKey).
Ghost Key occurs in order to prevent, and general common way has two: the first ways to be, near corresponding press-button contact
Diode is set, can make the electric current in film switch circuit that can only circulate with single direction, and can avoid because produced by Ghost Key
Erroneous judgement.However, first is had the disadvantages that in the way that diode is nearby arranged in each press-button contact, the cost of diode
Height, this way will lead to the cost increase of keyboard.Second, in multiple diodes are arranged on film switch circuit, it will increase film
The thickness of switching circuit, and the volume for being unfavorable for keyboard is lightening.Third, this way must be in the adjacent places of each press-button contact
Diode is welded, technique is too many and diverse.
It is then to be not provided with keyboard matrix in keyboard, but the outlet line of each key connects respectively as the second way
The microprocessor being connected in keyboard.The quantity that this way will cause outlet line is excessive and difficult to arrange.Such as: keyboard includes
There are 144 keys, this way has 144 outlet lines, therefore manufactory is difficult to arrange the configuration of a large amount of output circuit.
Therefore, it is necessary to it is a kind of can anti-Ghost Key keyboard, and cost can be reduced.
Summary of the invention
Cost can be reduced the purpose of the present invention is to provide one kind and with the keyboard of anti-Ghost Key function.
In a preferred embodiment, the present invention provides a kind of keyboard, including one first key, a film switch circuit and
One control unit.First key is revealed in except the keyboard, which is located at the lower section of first key, to
It is pressed by first key.The film switch circuit includes key switch and one first lower key switch on one first, this
Key switch corresponds to first key on one, corresponds to the one of first key to export when being triggered by first key
First key information.The first lower key switch corresponds to first key and is located at the lower section of the key switch on first, uses
With one second key information of the output corresponding to first key when being triggered by first key.The control unit is connected to this
Film switch circuit exports corresponding to first key information based on the received and second key information
One push button signalling；Wherein, when the control unit receives first key information and second key information, the control list
Member output corresponds to the push button signalling of first key；And when the control unit only receive first key information or this
When two key informations, which does not export the push button signalling corresponding to first key.
In a preferred embodiment, in the first row on route and the first row route formed this on first key open
Close, route forms the key switch on second on route and the secondary series on second row, and this on first key switch with
And this on second key switch form one first key-press matrix, and formed should for route under route and the first row under the first row
First lower key switch, route forms the second lower key switch under route and three row under second row, and this is under first
Key switch and the second lower key switch form one second key-press matrix；Wherein the arrangement mode of first key-press matrix with
The arrangement mode of second key-press matrix is different.
In a preferred embodiment, the arrangement mode of first key-press matrix is and first key and second key
Arrangement mode it is identical, and the arrangement mode of second key-press matrix is the arrangement side with first key and second key
Formula is different.
In a preferred embodiment, the control unit include multiple first programmable button information and it is multiple second it is default by
Key information, and multiple first programmable button information corresponds to one first key-press matrix, and multiple second programmable button information
Corresponding to one second key-press matrix；Wherein, when the control unit receives first key information and second key information
When, the control unit can obtain according to first key information and in multiple first programmable button information correspond to this first
The first programmable button information of key, and can be obtained in multiple second programmable button information according to second key information
The second programmable button information corresponding to first key is obtained, makes the control unit can be according to being somebody's turn to do corresponding to first key
First programmable button information and the second programmable button information corresponding to first key, and export and correspond to this and first press
The push button signalling of key.
In a preferred embodiment, when the control unit only receives first key information, which can root
Obtained in multiple first programmable button information according to first key information correspond to first key this is first default
Key information, and judgement lack the corresponding second programmable button information, make the control unit do not export corresponding to this first
The push button signalling of key；And when the control unit only receives second key information, the control unit can according to this
Two key informations and in multiple second programmable button information obtain correspond to first key second programmable button believe
Breath, and judgement lacks the corresponding first programmable button information, does not export the control unit corresponding to first key
The push button signalling.
In short, film switch circuit is designed as the structure of multiple field by invention keyboard, so that each key corresponds to one
A upper layer contact and lower layer's contact, therefore film switch circuit may include two key-press matrixs in wherein, wherein two are pressed
The arrangement mode of key matrix is different.In addition, occurring since Ghost Key is not actually pressed, in response to the non-spy actually pressed of Ghost Key
Property, the control unit of keyboard of the present invention is designed to that the key information of two key-press matrixs must be received, just can produce opposite
The push button signalling answered cooperates the different multiple key-press matrixs of arrangement mode, to avoid Ghost Key generation.With the first way of the prior art
It compares, keyboard of the present invention is not required to be arranged a large amount of diode in wherein, therefore can reduce the general keyboard with anti-Ghost Key function
Cost.Compared with the second way of the prior art, second of quantity than the prior art of the conducting wire in keyboard of the present invention is cooked
The quantity of the outlet line of method is few, and can solve the problems, such as that its output circuit is difficult to arrange.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-sectional side elevation of existing press-key structure.
Fig. 2 is surface structure schematic diagram of the keyboard of the present invention in a preferred embodiment.
Fig. 3 is partial structurtes diagrammatic cross-section of the keyboard of the present invention in a preferred embodiment.
Fig. 4 is partial structural diagram of the first key-press matrix of keyboard of the present invention in a preferred embodiment.
Fig. 5 is partial structural diagram of the second key-press matrix of keyboard of the present invention in a preferred embodiment.
Fig. 6 is block diagram of the control unit of keyboard of the present invention in a preferred embodiment.
Description of symbols:
1,2 keyboards 10,20 keys
11,21 film switch circuits 12,22 support plates
23 control unit, 101 button cap
102 scissor 103 elastic elements of connecting element
112 separate layer of wiring board on 111
113 lower 201 first keys of wiring board
Key switch on 202 second keys 216 first
The lower key switch of key switch 218 first on 217 second
219 second lower 1111 upper contacts of key switch
The lower contact of 1121 separate layer apertures 1131
211 first plate body, 212 second plate body
The 4th plate body of 213 third plate body 214
215 the 5th plate body, 231 first programmable button information
232 second programmable button information, 2,011 first button cap
2012 first scissor 2,013 first elastic elements of connecting element
The scissor connecting element of 2021 second button cap 2,022 second
2023 second elastic element, 2,111 first upper contact
2112 second upper contact, 2,121 first aperture
The lower contact of 2122 second apertures 2,131 first
2132 second lower 2133 third upper contacts of contact
2134 the 4th upper contact, 2141 third aperture
Contact under 2142 the 4th aperture, 2151 third
2152 the 4th lower the first key-press matrixs of contact M1
Route in M2 the second key-press matrix R1 the first row
Route under route R1-1 the first row on the second row of R2
Route on route S1 first row under the second row of R2-1
Route under route S1-1 first row on S2 secondary series
Route under S3-1 secondary series
Specific embodiment
In view of puzzlement caused by the prior art, the present invention provides a kind of keyboard that can solve prior art problem.First
Illustrate the surface structure of keyboard of the present invention, referring to Fig. 2, it shows for surface structure of the keyboard of the present invention in a preferred embodiment
It is intended to.Fig. 2 shows the arrangement mode of multiple keys 20 of keyboard 2 of the present invention.
The internal structure of keyboard of the present invention will be illustrated next, referring to Fig. 3, it is keyboard of the present invention in a preferred embodiment
In partial structurtes diagrammatic cross-section.Keyboard 2 of the present invention include multiple keys 20, film switch circuit 21, support plate 22 and
Control unit 23, multiple keys 20 include the first key 201 and the second key 202, the first key 201 and the second key
202 are revealed in the upper surface of keyboard 2 and are connected to support plate 22, can be pressed by user and move relative to support plate 22
It is dynamic.First key 201 includes the first button cap 2011, the first scissor connecting element 2012 and the first elastic element 2013.
First button cap 2011 is revealed in the upper surface of keyboard 2, so that user presses.First scissor connecting element 2012 is located at branch
Between fagging 22 and corresponding first button cap 2011, function is connection support plate 22 and the first button cap 2011 and makes
First button cap 2011 is moved up and down relative to support plate 22.First elastic element 2013 is located at corresponding first button cap
2011 lower section and pass through corresponding first scissor connecting element 2012, give the first button cap 2011 to provide elastic force,
The first button cap 2011 is set up to move and reset.
Similar to the first key 201, the second key 202 includes the second button cap 2021, the second scissor connecting element
2022 and second elastic element 2023.Second button cap 2021 is revealed in the upper surface of keyboard 2, so that user presses.The
Two scissor connecting elements 2022 are located between support plate 22 and corresponding second button cap 2021, and function is connection support
Plate 22 and the second button cap 2021 simultaneously move up and down the second button cap 2021 relative to support plate 22.Second elastic element
2023 are located at the lower section of corresponding second button cap 2021 and pass through corresponding second scissor connecting element 2022, to mention
The second button cap 2021 is given for elastic force, the second button cap 2021 is made up to move and reset.
Film switch circuit 21 between support plate 22 and multiple keys 20, function be can by the first key 201 or
Second key 202 presses and generates corresponding push button signalling.Support plate 22 is set to the lower section of film switch circuit 21, can
Carry multiple keys 20 and film switch circuit 21 thereon.Support plate 22 has corresponding to key 20 as seen from Figure 3
Multiple hooks (not being shown in figure), function are and the scissor company of corresponding first scissor connecting element 2012 or the second
The connection of element 2022 is connect, to fix the first button cap 2011 or the second button cap 2021 in support plate 22.Control unit 23 connects
It is connected to film switch circuit 21, function is to export corresponding push button signalling according to received key information, is transported
It is about to be described in detail in back segment.In this preferred embodiment, keyboard 2 is the keyboard of laptop, and the first scissor connection is first
Part 2012 is the movement with the first button cap 2011 and the scissor connecting element that swings, that is, the scissor being commonly called as, and first
Elastic element 2013 is rubber elastomer, is only illustration, rather than as limit.In another preferred embodiment, the first key
Cap and the second button cap are also acted using the volcano shape of the mouth as one speaks connection structure of desktop computer, in addition to this, can also be adopted
Moving up and down for the first button cap and the second button cap is controlled with magnetic means.
The detailed construction that film switch circuit 21 will be illustrated next, referring to Fig. 2, film switch circuit 21 includes the
One plate body 211, the second plate body 212, third plate body 213, the 4th plate body 214 and the 5th plate body 215, the first plate body 211 are located at
First elastic element 2013 of multiple keys 20 and the lower section of the second elastic element 2023, and it includes corresponding to the first key
201 the first upper contact 2111 and the second upper contact 2112 corresponding to the second key 202, wherein the first upper contact 2111
And second upper contact 2112 be all set on the lower surface of the first plate body 211.Second plate body 212 is located at the first plate body 211
Lower section, and opened including the first aperture 2121 for corresponding to the first upper contact 2111 and corresponding to the second of the second upper contact 2112
Hole 2122, wherein the first aperture 2121 and the second aperture 2122 extend through the second plate body 212.Third plate body 213 is located at the
The lower section of two plate bodys 212, and including on the lower contact 2132 of the first lower contact 2131, second, third upper contact 2133 and the 4th
Contact 2134, wherein first descends contact 2131 to correspond to the first upper contact 2111 and the first aperture 2121, and second descends contact
2132 correspond to the second upper contact 2112 and the second aperture 2122.In addition, the first lower contact 2131 and the second lower contact
2132 be to be set on the upper surface of third plate body 213, and third upper contact 2133 and the 4th upper contact 2134 are then set to
On the lower surface of third plate body 213.
4th plate body 214 is located at the lower section of third plate body 213, and the third aperture including corresponding to third upper contact 2133
2141 and corresponding to the 4th upper contact 2134 the 4th aperture 2142, wherein third aperture 2141 and the 4th aperture 2142
Extend through the 4th plate body 214.5th plate body 215 is located at the lower section of the 4th plate body 214, and including contact 2151 under third and
4th descends contact 2152, and contact 2151 corresponds to third upper contact 2133 and third aperture 2141 under third, and under the 4th
Contact 2152 corresponds to the 4th upper contact 2134 and the 4th aperture 2142.Wherein, under third under contact 2151 and the 4th
Contact 2152 is all set on the upper surface of the 5th plate body 215.
From the figure 3, it may be seen that the first upper contact 2111, the first aperture 2121 and the first lower contact 2131 form the first upper layer and connect
Point, and contact 2151 forms first lower layer's contact, and the first upper layer under third upper contact 2133, third aperture 2141 and third
Contact and first lower layer's contact all correspond to the first key 201.Similarly, the second upper contact 2112, the second aperture 2122 and
Second first upper layer contact of the lower formation of contact 2132, and the lower contact of the 4th upper contact 2134, the 4th aperture 2142 and the 4th
2152 form second lower layer's contact, and first lower layer's contact and second lower layer's contact all correspond to the second key 202.
Specifically, the support plate of keyboard of the present invention is other than the lower section that may be disposed at film switch circuit,
Also it can be set to the top of film switch circuit according to demand, its right support plate must be provided with the support corresponding to elastic element
Plate aperture, so that elastic element may pass through support plate aperture and trigger film switch circuit.
Please refer to Fig. 3, Fig. 4 and Fig. 5, Fig. 4 is the first key-press matrix of keyboard of the present invention in a preferred embodiment
In partial structural diagram, and Fig. 5 is partial structurtes of second key-press matrix in a preferred embodiment of keyboard of the present invention
Schematic diagram.Fig. 3 shows the first key-press matrix M1 of film switch circuit 21, and the first key-press matrix M1 is by key on first
Key switch 217 and key switch is collectively formed on other on switch 216, second.On the other hand, Fig. 4 shows that film is opened
The second key-press matrix M2 on powered-down road 21, and the second key-press matrix M2 is by the lower key switch of the first lower key switch 218, second
219 and other lower key switches be collectively formed.By Fig. 3, Fig. 4 and Fig. 5 it is found that the first upper contact 2111 is to pass through the first row
Upper route R1 and be electrically connected at key switch 216 on first, and the first lower contact 2131 is by route S1 on first row
It is electrically connected at key switch 216 on first.Second upper contact 2112 is that is electrically connected at by route R2 on the second row
Key switch 217 on two, and the second lower contact 2132 is to be electrically connected at key on second by route S2 on secondary series to open
Close 217.Third upper contact 2133 is key switch 218 under being electrically connected at first by route R1-1 under the first row, and the
Three lower contacts 2151 are that the first lower key switch 218, the 4th upper contact are electrically connected at by route S1-1 under first row
2134 be the second lower key switch 219 to be electrically connected at by route R2-1 under the second row, and the 4th lower contact 2152 is logical
Third is crossed to arrange lower route S3-1 and be electrically connected at the second lower key switch 219.
Wherein, route S1 forms key switch 216 on first on route R1 and first row in the first row, and on the second row
Route S2 forms key switch 217 on second on route R2 and secondary series.Route R1-1 and first row are offline under the first row
Road S1-1 forms the first lower key switch 218, and route R2-1 and third are arranged under lower route S3-1 forms second and pressed under the second row
Key switch 219.In addition, as seen from Figure 4, key switch 216 corresponds to key " Q " on first, and key switch on second
217 correspond to key " S ", that is to say, that the first key 201 is key " Q ", and the second key 202 is key " S ".Therefore
It is found that in the first key-press matrix M1 first on key switch 217 and key switch on other on key switch 216, second
Arrangement mode be identical as the arrangement mode of multiple keys 20 of keyboard 2.
On the other hand, as seen from Figure 5, the first lower key switch 218 corresponds to key " Q ", and the second lower key is opened
It closes 219 and then corresponds to key " W ".However, due to route under route R1-1, first row under the first row in the second key-press matrix M2
Route R2-1 and third arrange the lower line configuring mode of route S3-1 and the route of the first key-press matrix M1 under S1-1, the second row
Configuration mode is different, and the arrangement mode of the first key-press matrix M1 is different from the arrangement mode of the second key-press matrix M2.
In detail, for the entity structure of keyboard 2, the first upper layer contact and first lower layer's contact are all located at first and press
The lower section of key 201, and the second upper layer contact and second lower layer's contact are all located at the lower section of the second key 202.On the other hand,
It is online by route R2 on route S1 on route R1 in the first row, first row, the second row and secondary series in one key-press matrix M1
The configuration of road S2, so that key switch 217 is opposite in the first key-press matrix M1 on key switch 216 and second on first
First key 201 is identical as the relative positional relationship in the second key 202 in positional relationship and multiple keys 20.Second presses bond moment
In battle array M2, lower route is arranged by route R2-1 under route S1-1, the second row under route R1-1, first row under the first row and third
The configuration of S3-1, so that the first lower key switch 218 and the second lower key switch 219 are opposite in the second key-press matrix M2
Positional relationship and the first key 201 in multiple keys 20 are different with the relative positional relationship in the second key 202.Therefore, first
The arrangement mode of key-press matrix M1 is different from the arrangement mode of the second key-press matrix M2.
The framework of control unit 23 will be illustrated next.Referring to Fig. 6, it is preferred in one for the control unit of keyboard of the present invention
Block diagram in embodiment.Control unit 23 is preset including multiple first programmable button information 231 and multiple second and is pressed
Key information 232 is in wherein, and multiple first programmable button information 231 correspond to the first key-press matrix M1, and multiple second is pre-
If key information 232 then corresponds to the second key-press matrix M2.Multiple first programmable button information 231 be, for example, " R1S1 ", "
R2S2 " ... etc., wherein the first programmable button information " R1S1 " corresponds to key switch on the first of the first key 201
216, the first programmable button information " R2S2 " then corresponds to key switch 217 on the second of the second key 202.Multiple second is default
Key information 232 be, for example, " R1-1S1-1 ", " R2-1S3-1 " ... etc., wherein the second programmable button information " R1-1S1-1 "
The first lower key switch 218 of the first key 201 is corresponded to, the first programmable button information " R2-1S3-1 " then corresponds to second
The lower key switch 219 of the second of key 202.
The operation situation of keyboard 2 of the present invention will be illustrated next.Please refer to Fig. 3~Fig. 6, when user press key "
When Q ", corresponding to key " Q " the operation of each element and press the first upper layer contact and first lower layer's contact so that corresponding to the
Key switch 216 is triggered and generates the first key information " R1S1 " corresponding to key " Q " on the first of one upper layer contact, and
The first lower key switch 218 corresponding to first lower layer's contact be triggered and generate corresponding to key " Q " the second key information "
R1-1S1-1".Wherein, the first key information " R1S1 " be triggered by route S1 on route R1 in the first row and first row and
It generates, similarly, the second key information " R1-1S1-1 " is touched by route S1-1 under route R1-1 under the first row and first row
It sends out and generates.On the other hand, it is single to be transferred to control for the first key information " R1S1 " and the second key information " R1-1S1-1 "
Member 23.
When control unit 23 receives the first key information " R1S1 " and the second key information " R1-1S1-1 ", control
Unit 23 can obtain in multiple first programmable button information 231 according to the first key information " R1S1 " and correspond to the first key
201 the first programmable button information " R1S1 ".It on the other hand, also can be according to the second key information " R1-1S1-1 " and in multiple
The the second programmable button information " R1-1S1-1 " for corresponding to the first key 201 is obtained in two programmable button information 232.Due to first
Programmable button information " R1S1 " corresponds to key " Q ", and the second programmable button information " R1-1S1-1 " also corresponds to key " Q ",
Therefore, control unit 23 can be obtained according to the first programmable button information " R1S1 " and the second programmable button information " R1-1S1-1 "
Know touched key " Q ", therefore the output of control unit 23 corresponds to the push button signalling of key " Q ", is connected to the computer of keyboard 2
(not shown in the figures) carries out the instruction corresponding to key " Q ".
When user presses key " W ", each element corresponding to key " W " is carried out and above-mentioned key " Q " identical fortune
Row, so that the first key information " R1S2 " and the second key information " R1-1S2-1 " corresponding to key " W " are transferred to control
Unit 23 processed.Similarly, control unit 23 carries out the identical operation with above-mentioned key " Q " and learns touched key " W ", therefore controls
The output of unit 23 processed corresponds to the push button signalling of key " W ", and the computer for being connected to keyboard 2 carries out the finger for corresponding to key " W "
It enables.As for user press the operation of key " A " and key " S " also with the operation of above-mentioned key " Q " similarly, therefore it is no longer superfluous
It states.
In the first key-press matrix M1, when key " Q ", key " W " and key " A " are all triggered, key " S " can occur
The situation of Ghost Key, therefore the first key-press matrix M1 can transmit the first key information " R2S2 " corresponding to key " S " to control unit
23.On the other hand, in the second key-press matrix M2, when key " Q ", key " W " and key " A " are all triggered, due to second
Route in key-press matrix M2 corresponding to key " Q ", key " W " and key " A " is designed to the first key-press matrix M1 not
Same arrangement mode, therefore the situation of Ghost Key will not occur for the second key-press matrix M2, press without transmitting corresponding to the second of key " S "
Key information " R2-1S3-1 " is to control unit 23.In response to design of the invention, control unit 23 be set to only to receive first by
Key information or the second key information, not output key signal, at this point, control unit 23 judges to lack the corresponding to key " S "
Two key informations correspond to the push button signalling of key " S " without exporting.Therefore, keyboard 2 of the present invention can avoid Ghost Key.
As described above, film switch circuit is designed as the structure of multiple field by keyboard of the present invention, so that each key
Corresponding to a upper layer contact and lower layer's contact, therefore film switch circuit may include two key-press matrixs in wherein,
In, the arrangement mode of two key-press matrixs is different.In addition, occurring since Ghost Key is not actually pressed, in response to the non-reality of Ghost Key
The characteristic that border presses, the control unit of keyboard of the present invention are designed to that the key information of two key-press matrixs must be received,
It can produce corresponding push button signalling, cooperate the different multiple key-press matrixs of arrangement mode, to avoid Ghost Key generation.
Compared with the first way of the prior art, keyboard of the present invention is not required to be arranged a large amount of diode in wherein, therefore can drop
The cost of the low generally keyboard with anti-Ghost Key function.Conduction compared with the second way of the prior art, in keyboard of the present invention
The quantity of route is fewer than the quantity of the outlet line of the second way of the prior art, and it is difficult to arrange to solve its output circuit
Problem.
The above description is only a preferred embodiment of the present invention, the claim being not intended to limit the invention, thus it is all its
It is intended to be limited solely by the claim of the disclosure without departing from the equivalent change or modification completed under design disclosed in this invention
It is interior.
Claims (10)
1. a kind of keyboard, comprising:
One first key, is revealed in except the keyboard；
One film switch circuit, positioned at the lower section of first key, to be pressed by first key, the film switch circuit packet
It includes:
Key switch on one first corresponds to first key, to when being triggered by first key output correspond to this
One first key information of one key；And
One first lower key switch, corresponds to first key, to when being triggered by first key output correspond to this
One second key information of one key；And
One control unit is connected to the film switch circuit, to first key information based on the received and this
Two key informations and export a corresponding push button signalling；Wherein, when the control unit receive first key information and
When second key information, control unit output corresponds to the push button signalling of first key；And work as the control unit only
When receiving first key information or second key information, which does not export presses corresponding to this of first key
Key signals.
2. keyboard as described in claim 1 further includes one second key, be revealed in except the keyboard and adjacent to this first by
Key；Wherein, the film switch circuit further include:
Key switch on one second corresponds to second key, to when being triggered by second key output correspond to this
One third key information of two keys；And
One second lower key switch, corresponds to second key, to when being triggered by second key output correspond to this
One the 4th key information of two keys；Wherein, when the control unit receives the third key information and the 4th key letter
When breath, control unit output corresponds to the push button signalling of second key；And when the control unit only receives the third
When key information or four key informations, which does not export the push button signalling corresponding to second key.
3. keyboard as claimed in claim 2, wherein the film switch circuit further include:
One first plate body, positioned at the lower section of first key and second key, and including one first upper contact and one
Two upper contacts；
One second plate body, positioned at the lower section of first plate body, and including one first aperture and one second aperture；
One third plate body, positioned at the lower section of second plate body, and including in one first lower contact, one second lower contact, a third
Contact and one the 4th upper contact；
One the 4th plate body, positioned at the lower section of the third plate body, and including a third aperture and one the 4th aperture；And
One the 5th plate body, positioned at the lower section of the 4th plate body, and including contact under a third and one the 4th lower contact.
4. keyboard as claimed in claim 3, wherein first upper contact is electrically connected at by route in a first row
The key switch on first, and the first lower contact be electrically connected at by route on a first row this on first key open
It closes, which is the key switch on second to be electrically connected at by route on one second row, and this connects under second
Point is that the key switch on second is electrically connected at by route on a secondary series, which is by a first row
Lower route and be electrically connected at the first lower key switch, and contact is electrically connected by route under a first row under the third
It is connected to the first lower key switch, the 4th upper contact is that the second lower key is electrically connected at by route under one second row
Switch, and the 4th lower contact is to arrange lower route by a third to be electrically connected at the second lower key switch.
5. keyboard as claimed in claim 4, wherein route forms this on first on route and the first row in the first row
Key switch, route forms the key switch on second on route and the secondary series on second row, and the key on first
Switch and this on second key switch form one first key-press matrix, and route under route and the first row under the first row
The first lower key switch is formed, route and the third arrange lower route and form the second lower key switch under second row, and
The first lower key switch and the second lower key switch form one second key-press matrix；The wherein row of first key-press matrix
Column mode is different from the arrangement mode of second key-press matrix.
6. keyboard as claimed in claim 5, wherein the arrangement mode of first key-press matrix be with first key and should
The arrangement mode of second key is identical, and the arrangement mode of second key-press matrix is and first key and second key
Arrangement mode it is different.
7. keyboard as described in claim 1, wherein the control unit includes multiple first programmable button information and multiple
Two programmable button information, and multiple first programmable button information corresponds to one first key-press matrix, and multiple second is default
Key information corresponds to one second key-press matrix；Wherein, when the control unit receive first key information and this second
When key information, which can be corresponded in multiple first programmable button information according to first key information
In the first programmable button information of first key, and can be according to second key information and in multiple second programmable button
In information obtain correspond to first key the second programmable button information, make the control unit can according to correspond to this first
The first programmable button information of key and the second programmable button information corresponding to first key, and export and correspond to
The push button signalling of first key.
8. keyboard as claimed in claim 7, wherein when the control unit only receives first key information, the control
Unit can be obtained according to first key information and in multiple first programmable button information corresponds to being somebody's turn to do for first key
First programmable button information, and judgement lacks the corresponding second programmable button information, and the control unit is made not export correspondence
In the push button signalling of first key；And when the control unit only receives second key information, which can
Obtained in multiple second programmable button information according to second key information correspond to first key this is second pre-
If key information, and judgement lacks the corresponding first programmable button information, make the control unit do not export corresponding to this
The push button signalling of one key.
9. keyboard as described in claim 1 further includes a support plate, is set to the lower section of the film switch circuit；Wherein, should
First key includes:
One first button cap, is revealed in except the keyboard；
One first scissor connecting element, between the support plate and first button cap, to connect the support plate and
First button cap simultaneously moves up and down first button cap relative to the support plate；And
One first elastic element, between first button cap and the film switch circuit, being supported by the button cap and
The film switch circuit is pressed, to trigger key switch and the first lower key switch on first.
10. keyboard as claimed in claim 9, wherein second key includes:
One second button cap, is revealed in except the keyboard；
One second scissor connecting element, between the support plate and second button cap, to connect the support plate and
Second button cap simultaneously moves up and down second button cap relative to the support plate；And
One second elastic element, between second button cap and the film switch circuit, being supported by the button cap and
The film switch circuit is pressed, to trigger on correspond to second key one second key switch and second press corresponding to this
The lower key switch of the one second of key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030684.8A CN110033974B (en) | 2018-01-12 | 2018-01-12 | Keyboard with a keyboard body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030684.8A CN110033974B (en) | 2018-01-12 | 2018-01-12 | Keyboard with a keyboard body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110033974A true CN110033974A (en) | 2019-07-19 |
| CN110033974B CN110033974B (en) | 2020-11-06 |
Family
ID=67234753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810030684.8A Active CN110033974B (en) | 2018-01-12 | 2018-01-12 | Keyboard with a keyboard body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110033974B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08328719A (en) * | 1995-05-30 | 1996-12-13 | Nec Corp | Keyboard |
| CN1357900A (en) * | 2000-12-13 | 2002-07-10 | 英群企业股份有限公司 | Switch arranged in ihnvolute diagonal line method |
| CN1397868A (en) * | 2001-07-12 | 2003-02-19 | 株式会社东芝 | Key inputting device having braile inputting function |
| US20060061553A1 (en) * | 2004-09-20 | 2006-03-23 | Hannu Korhonen | Double-phase pressing keys for mobile terminals |
| US20070212152A1 (en) * | 2006-03-09 | 2007-09-13 | Chien-Tsung Chen | Keyboard configuration |
| WO2007123546A1 (en) * | 2006-04-21 | 2007-11-01 | Razer Usa Ltd | Anti-ghosting keyboard |
| CN101598974A (en) * | 2008-06-06 | 2009-12-09 | 深圳市方中天网络技术有限公司 | A kind of combination key anti-collision keyboard |
| CN101686060A (en) * | 2008-09-25 | 2010-03-31 | 旭丽电子(广州)有限公司 | Control circuit and configuration method |
| CN102375546A (en) * | 2010-08-11 | 2012-03-14 | 致伸科技股份有限公司 | Two-section type pressure sensing keyboard |
| CN202838181U (en) * | 2011-09-07 | 2013-03-27 | 创杰国际股份有限公司 | Keyboard supporting multi-key scrolling capability |
| CN103701472A (en) * | 2013-11-12 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Digital keying circuit and keying equipment |
| CN205881770U (en) * | 2016-07-25 | 2017-01-11 | 江苏传艺科技股份有限公司 | Prevent terrible key membrane switch and contain this membrane switch's keyboard for |
| TW201705172A (en) * | 2015-07-31 | 2017-02-01 | 致伸科技股份有限公司 | Keyboard |
-
2018
- 2018-01-12 CN CN201810030684.8A patent/CN110033974B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08328719A (en) * | 1995-05-30 | 1996-12-13 | Nec Corp | Keyboard |
| CN1357900A (en) * | 2000-12-13 | 2002-07-10 | 英群企业股份有限公司 | Switch arranged in ihnvolute diagonal line method |
| CN1397868A (en) * | 2001-07-12 | 2003-02-19 | 株式会社东芝 | Key inputting device having braile inputting function |
| US20060061553A1 (en) * | 2004-09-20 | 2006-03-23 | Hannu Korhonen | Double-phase pressing keys for mobile terminals |
| US20070212152A1 (en) * | 2006-03-09 | 2007-09-13 | Chien-Tsung Chen | Keyboard configuration |
| WO2007123546A1 (en) * | 2006-04-21 | 2007-11-01 | Razer Usa Ltd | Anti-ghosting keyboard |
| CN101598974A (en) * | 2008-06-06 | 2009-12-09 | 深圳市方中天网络技术有限公司 | A kind of combination key anti-collision keyboard |
| CN101686060A (en) * | 2008-09-25 | 2010-03-31 | 旭丽电子(广州)有限公司 | Control circuit and configuration method |
| CN102375546A (en) * | 2010-08-11 | 2012-03-14 | 致伸科技股份有限公司 | Two-section type pressure sensing keyboard |
| CN202838181U (en) * | 2011-09-07 | 2013-03-27 | 创杰国际股份有限公司 | Keyboard supporting multi-key scrolling capability |
| CN103701472A (en) * | 2013-11-12 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Digital keying circuit and keying equipment |
| TW201705172A (en) * | 2015-07-31 | 2017-02-01 | 致伸科技股份有限公司 | Keyboard |
| CN205881770U (en) * | 2016-07-25 | 2017-01-11 | 江苏传艺科技股份有限公司 | Prevent terrible key membrane switch and contain this membrane switch's keyboard for |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110033974B (en) | 2020-11-06 |
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