WO2017107918A1 - Double navigation key input device - Google Patents
Double navigation key input device Download PDFInfo
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- WO2017107918A1 WO2017107918A1 PCT/CN2016/111288 CN2016111288W WO2017107918A1 WO 2017107918 A1 WO2017107918 A1 WO 2017107918A1 CN 2016111288 W CN2016111288 W CN 2016111288W WO 2017107918 A1 WO2017107918 A1 WO 2017107918A1
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
- G06F3/0205—Lever arrangements for operating keyboard cursor control keys in a joystick-like manner
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
- G06F3/021—Arrangements integrating additional peripherals in a keyboard, e.g. card or barcode reader, optical scanner
Definitions
- the present invention relates to the field of computer input devices, and in particular, to a dual navigation key input device, which is used as a human-computer interaction input device instead of a standard computer keyboard.
- buttons representing different functions.
- the current standard keyboard is 101 buttons or 104 buttons.
- the keyboards used by the users are set for normal people. Because there are many buttons, the user needs to operate with both hands. After the keyboard is input in actual use, the user can freely operate the mouse, which has problems affecting work efficiency; the keyboard currently used Most of the key positions are large, and it is difficult to reduce the area in order to adapt to the two-hand operation. There are a large number of disabled people in the computer population, and there are defects in the limbs. Obviously, the existing standard keyboard is very inconvenient for such special users. .
- the technical problem to be solved by the present invention is to provide a dual navigation key input device which is simple in structure and convenient for single finger operation.
- a dual navigation key input device includes a base and a first navigation key and a second navigation key disposed on the base for single finger operation. Both the first navigation key and the second navigation key can be manipulated in at least five directions.
- the dual navigation key input device includes a controller and a keyboard interface.
- the input ends of the controller are respectively connected to the output ends of the first navigation key and the second navigation key.
- the controller is configured to acquire an action signal of the first navigation key and the second navigation key and compile the action signal into a standard computer input signal.
- the controller outputs its compiled standard computer input signal through the keyboard interface.
- the dual navigation key input device includes an indicator light or a display screen for displaying current state information and an operation prompt of the dual navigation key input device, and an indicator light or an input terminal of the display terminal is connected to the output end of the controller.
- the dual navigation key input device externally receives the host and collects and compiles the action signals of the first navigation key and the second navigation key by the host.
- the dual navigation key input device includes an indication for displaying current state information of the dual navigation key input device
- the lamp or display, indicator light or the input of the display is connected to the host.
- the invention has the beneficial effects that the invention consists of two navigation keys, and the operation can be completed with only one finger, and has the characteristics of simple structure and miniaturization. Different key values are corresponding by dialing (or pressing) a navigation key individually or by sequentially (or pressing) the navigation key in a prescribed order.
- the dual navigation key input device of the present invention can be used instead of the standard computer keyboard.
- the dual navigation keys are input to the external host of the device, and the input signals of the two navigation keys are directly collected and compiled by the host, which can significantly reduce the complexity of the circuit, and can easily modify the input rules of the two navigation keys.
- the dual navigation key input device of the present invention can realize the main functions of a standard computer keyboard, can be integrated into other devices or used alone, and can be connected to the host in a wired or wireless manner when used alone, instead of the standard keyboard.
- Figure 1 is a schematic view of the structure of the present invention.
- FIG. 2 is a circuit schematic diagram of a controller of the present invention.
- FIG. 3 is a schematic diagram of a program flow of the present invention.
- FIG. 4 is a schematic diagram of another navigation key arrangement of the present invention.
- 1-base 2-first navigation key
- 3-second navigation key 4-keyboard interface
- the dual navigation key input device of Embodiment 1 includes a base 1, a first navigation key 2, a second navigation key 3, a controller, and a keyboard interface.
- the first navigation key 2 and the second navigation key 3 may be disposed on the base 1 in a bilaterally symmetric manner (as shown in FIG. 1) or vertically symmetrically (as shown in FIG. 4).
- the first navigation key 2 and the second navigation key 3 can perform five actions such as “forwardward shifting”, “backward shifting”, “leftward shifting”, “rightward shifting” and “pressing”. The above actions can all be operated by a single finger.
- the input ends of the controller are respectively connected to the outputs of the first navigation key 2 and the second navigation key 3.
- the controller is configured to acquire an action signal of the first navigation key 2 and the second navigation key 3 and compile the action signal into a standard computer input signal.
- the standard computer input signal compiled and output by the controller of Embodiment 1 is connected to a computer or other engineering device, and the dual navigation key input device of Embodiment 1 can be used in place of a standard computer keyboard.
- the base 1 is provided with an indicator light or a display screen for displaying the current state information of the dual navigation key input device, and the input end of the indicator light or the display terminal is connected to the output end of the controller, and the indicator light or the display screen is displayed. The situation is controlled by the controller.
- the operation of the first navigation key 2 and/or the second navigation key 3 is performed, and the user command is recognized after the controller collects and compiles (the specific user command includes entering/exiting the “digital lock state” or the “cursor lock state”), and the controller Control the display of indicators or displays according to specific user commands, and input Compile the input action, and the compile rules of the controller are shown in Tables 1 to 3.
- Table 1 The operation actions not defined in Table 1 can be reserved for future expansion functions; the dual navigation key input device of Table 1 corresponds to Figure 1, where the left button is the first navigation button 2, and the right button is the second navigation button. 3;
- the manipulation rule can be analogized to Table 1, and the left button in Table 1 is used as the up key (ie, the first navigation key 2 in FIG. 4), and the right key is used as the down key (ie, The second navigation key 3) in Fig. 4 is sufficient.
- Table 3 double navigation key input device corresponds to Figure 1, where the left button is the first navigation button 2, right click The second navigation key 3; for the dual navigation key input device shown in FIG. 4, the manipulation rule can be analogized to Table 3, and the left key in Table 3 is used as the upper key (ie, the first navigation key 2 in FIG. 4), and the right key is used as the The down key (ie the second navigation key 3 in Fig. 4) can be.
- the ten inputs of the controller are connected to the first navigation key 2 and the second navigation key 3, respectively.
- the first navigation key 2 and the second navigation key 3 are all miniature five-way switches, which are essentially five switches that are combined together, and the corresponding switch contacts can be respectively turned on and off by pushing forward or backward.
- the ten inputs of the controller are connected to the ten switch contacts of the first navigation key 2 and the second navigation key 3, respectively.
- the three output terminals of the controller are respectively connected to the power supply via three LEDs D1 to D3, and the LEDs D1 to D3 are indicators for displaying the current status information of the dual navigation key input device.
- the LED D1 is used to indicate caps lock
- the LED D2 is used to indicate digital lock
- the LED D3 is used to indicate cursor lock.
- the controller and the enable terminal VCC of the PS2 keyboard interface are connected to the power supply, and the grounding terminal GND of the controller and the PS2 keyboard interface are grounded.
- the two output terminals of the controller are respectively connected to the data input terminal DATA and the clock signal terminal CLK of the PS2 keyboard interface. .
- the working procedure flow is shown in Figure 3.
- the first navigation key 2 and the second navigation key 3 are both JKS0000-1401F type multi-function operating devices of SMK Company, and the controller is STC89C52RC type single-chip microcomputer.
- the dual navigation key input device of Embodiment 2 includes a base 1, a first navigation key 2, and a second navigation key 3.
- the mounting structure of the above components is the same as that of Embodiment 1.
- the first navigation key 2 and the second navigation key 3 are externally connected to the host, and the action signals of the first navigation key 2 and the second navigation key 3 are collected and compiled by the host.
- the compiling rules are shown in Tables 1-3.
- the base 1 of Embodiment 2 is provided with an indicator light or a display screen for displaying the current state information of the dual navigation key input device, and the indicator light or the input end of the display screen is externally connected to the host, and is displayed by the host control indicator or the display screen.
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- Input From Keyboards Or The Like (AREA)
Abstract
Description
本发明涉及计算机输入设备技术领域，具体涉及一种双导航键输入设备，该双导航键输入设备用以代替标准计算机键盘作为人机交互输入设备。The present invention relates to the field of computer input devices, and in particular, to a dual navigation key input device, which is used as a human-computer interaction input device instead of a standard computer keyboard.
当今社会，计算机已经成为人们工作、生活中不可缺少的设备。为方便用户使用，计算机的键盘设有很多代表不同功能的按键，目前的标准键盘是101个按键或104个按键。目前用户使用的键盘都是针对正常人设置的，因为按键很多，所以需要用户双手操作，在实际使用中键盘输入完毕后，腾出手来才能操作鼠标，存在影响工作效率的问题；目前使用的键盘键位大多面积较大，为适应双手操作难以再缩小面积；计算机的使用人群存在一批相当数量的残疾人，肢体上存在残缺，显然现有的标准键盘对于这类特殊用户而言很不方便。目前，市面上已出现一些单手键盘，这些单手键盘虽然将按键数量做了一些缩减，但是现有的单手键盘通常按键数量也不少于十个，小型化处理仍较为困难，并且完全单手操作还存在不便之处，更不能实现仅用一两个手指来完成输入，无法单手同时操作键盘和鼠标。In today's society, computers have become indispensable equipment for people's work and life. For the convenience of users, the keyboard of the computer has many buttons representing different functions. The current standard keyboard is 101 buttons or 104 buttons. At present, the keyboards used by the users are set for normal people. Because there are many buttons, the user needs to operate with both hands. After the keyboard is input in actual use, the user can freely operate the mouse, which has problems affecting work efficiency; the keyboard currently used Most of the key positions are large, and it is difficult to reduce the area in order to adapt to the two-hand operation. There are a large number of disabled people in the computer population, and there are defects in the limbs. Obviously, the existing standard keyboard is very inconvenient for such special users. . At present, some one-handed keyboards have appeared on the market. Although these one-handed keyboards have reduced the number of buttons, the existing one-handed keyboards usually have no fewer than ten buttons, and the miniaturization process is still difficult and completely complete. One-handed operation is inconvenient, and it is impossible to perform input with only one or two fingers, and it is impossible to operate the keyboard and mouse at the same time with one hand.
发明内容Summary of the invention
本发明所要解决的技术问题是提供一种结构简单、便于单指操作的小型化的双导航键输入设备。The technical problem to be solved by the present invention is to provide a dual navigation key input device which is simple in structure and convenient for single finger operation.
本发明的技术方案为：The technical solution of the present invention is:
一种双导航键输入设备，包括底座以及设置在底座上可单指操作的第一导航键和第二导航键。第一导航键和第二导航键均可进行至少五个方向的操控。A dual navigation key input device includes a base and a first navigation key and a second navigation key disposed on the base for single finger operation. Both the first navigation key and the second navigation key can be manipulated in at least five directions.
具体的，双导航键输入设备包括控制器和键盘接口。控制器的输入端分别接第一导航键和第二导航键的输出端。控制器用于采集第一导航键和第二导航键的动作信号并将动作信号编译为标准计算机输入信号。控制器将其编译的标准计算机输入信号通过键盘接口输出。Specifically, the dual navigation key input device includes a controller and a keyboard interface. The input ends of the controller are respectively connected to the output ends of the first navigation key and the second navigation key. The controller is configured to acquire an action signal of the first navigation key and the second navigation key and compile the action signal into a standard computer input signal. The controller outputs its compiled standard computer input signal through the keyboard interface.
具体的，双导航键输入设备包括用于显示双导航键输入设备的当前状态信息和操作提示的指示灯或显示屏，指示灯或显示屏的输入端接控制器的输出端。Specifically, the dual navigation key input device includes an indicator light or a display screen for displaying current state information and an operation prompt of the dual navigation key input device, and an indicator light or an input terminal of the display terminal is connected to the output end of the controller.
具体的，双导航键输入设备外接主机并由主机采集和编译第一导航键和第二导航键的动作信号。Specifically, the dual navigation key input device externally receives the host and collects and compiles the action signals of the first navigation key and the second navigation key by the host.
具体的，双导航键输入设备包括用于显示双导航键输入设备的当前状态信息的指示 灯或显示屏，指示灯或显示屏的输入端外接主机。Specifically, the dual navigation key input device includes an indication for displaying current state information of the dual navigation key input device The lamp or display, indicator light or the input of the display is connected to the host.
本发明的有益效果：本发明由两个导航键组成，只需一个手指就能完成操作，具有结构简单和小型化的特点。通过单独拨动(或按下)某个导航键或按规定顺序依次拨动(或按下)导航键来对应不同的键值。将双导航键输入设备连接控制器，利用控制器采集和编译输入信号，能够将本发明的双导航键输入设备代替标准计算机键盘使用。将双导航键输入设备外接主机，由主机直接采集和编译两个导航键的输入信号，能够显著降低电路复杂程度，并且能够方便地修改两个导航键的输入规则。本发明的双导航键输入设备可以实现标准计算机键盘的主要功能，可集成到其他设备上或单独使用，单独使用时可采用有线或无线方式与主机连接，用以代替标准键盘。The invention has the beneficial effects that the invention consists of two navigation keys, and the operation can be completed with only one finger, and has the characteristics of simple structure and miniaturization. Different key values are corresponding by dialing (or pressing) a navigation key individually or by sequentially (or pressing) the navigation key in a prescribed order. By connecting the dual navigation key input device to the controller and collecting and compiling the input signal by the controller, the dual navigation key input device of the present invention can be used instead of the standard computer keyboard. The dual navigation keys are input to the external host of the device, and the input signals of the two navigation keys are directly collected and compiled by the host, which can significantly reduce the complexity of the circuit, and can easily modify the input rules of the two navigation keys. The dual navigation key input device of the present invention can realize the main functions of a standard computer keyboard, can be integrated into other devices or used alone, and can be connected to the host in a wired or wireless manner when used alone, instead of the standard keyboard.
图1为本发明的结构示意图。Figure 1 is a schematic view of the structure of the present invention.
图2为本发明控制器的电路原理图。2 is a circuit schematic diagram of a controller of the present invention.
图3为本发明的程序流程示意图。FIG. 3 is a schematic diagram of a program flow of the present invention.
图4为本发明的另一种导航键布置方式示意图。4 is a schematic diagram of another navigation key arrangement of the present invention.
其中，1-底座，2-第一导航键，3-第二导航键，4-键盘接口。Among them, 1-base, 2-first navigation key, 3-second navigation key, 4-keyboard interface.
下面结合附图对本发明作进一步说明。The invention will now be further described with reference to the accompanying drawings.
实施例1Example 1
如图1和图4所示，实施例1的双导航键输入设备包括底座1、第一导航键2、第二导航键3、控制器和键盘接口。第一导航键2和第二导航键3可左右对称(如图1所示)或者上下对称(如图4所示)地设置在底座1上。第一导航键2和第二导航键3均可进行“向前拨动”、“向后拨动”、“向左拨动”、“向右拨动”和“按下”等五个动作，上述动作均可由单指进行操作。控制器的输入端分别接第一导航键2和第二导航键3的输出端。控制器用于采集第一导航键2和第二导航键3的动作信号并将动作信号编译为标准计算机输入信号。将实施例1控制器编译并输出的标准计算机输入信号外接计算机或其他工程设备，则实施例1的双导航键输入设备可用于代替标准计算机键盘使用。实施例1中，底座1上设置有用于显示双导航键输入设备的当前状态信息的指示灯或显示屏，指示灯或显示屏的输入端接控制器的输出端，指示灯或显示屏的显示情况受控制器控制。操作第一导航键2和/或第二导航键3动作，经控制器采集和编译后识别用户命令(具体的用户命令包括进入/退出“数字锁定状态”或“光标锁定状态”)，控制器根据具体的用户命令控制指示灯或显示屏的显示，并对输
入动作进行编译，控制器的编译规则见表1～3。As shown in FIGS. 1 and 4, the dual navigation key input device of Embodiment 1 includes a base 1, a
表1常规状态下双导航键输入设备与标准计算机键盘操作的对应关系Table 1 Correspondence between dual navigation key input devices and standard computer keyboard operations in the normal state
注：表1中未定义的操作动作可留作将来扩展功能用；表1的双导航键输入设备与图1所示相对应，其中左键即第一导航键2，右键即第二导航键3；对于图4所示的双导航键输入设备，操控规则可类比表1，将表1中左键用作上键(即图4中第一导航键2)、右键用作下键(即图4中第二导航键3)即可。Note: The operation actions not defined in Table 1 can be reserved for future expansion functions; the dual navigation key input device of Table 1 corresponds to Figure 1, where the left button is the
表2数字锁定状态下双导航键输入设备与标准计算机键盘操作的对应关系Table 2 Correspondence between dual navigation key input devices and standard computer keyboard operations in digital lock state
注：先把左键向右拨动一下，然后右键按下，可进入数字锁定状态；表2的双导航键输入设
备与图1所示相对应，其中左键即第一导航键2，右键即第二导航键3；对于图4所示的双导航键输入设备，操控规则可类比表2，将表2中左键用作上键(即图4中第一导航键2)、右键用作下键(即图4中第二导航键3)即可。Note: first turn the left button to the right, then right click to enter the digital lock state; Table 2 double navigation button input settings
Corresponding to Figure 1, the left button is the
表3光标锁定状态下双导航键输入设备与标准计算机键盘操作的对应关系Table 3 Correspondence between dual navigation key input device and standard computer keyboard operation under cursor lock status
注：先把右键向左拨动一下，然后右键按下，可进入光标锁定状态；表3的双导航键输入设备与图1所示相对应，其中左键即第一导航键2，右键即第二导航键3；对于图4所示的双导航键输入设备，操控规则可类比表3，将表3中左键用作上键(即图4中第一导航键2)、右键用作下键(即图4中第二导航键3)即可。Note: first right click to the left, then right click to enter the cursor lock state; Table 3 double navigation key input device corresponds to Figure 1, where the left button is the
图2所示为实施例1中控制器的电路原理图。控制器的十个输入端分别接第一导航键2和第二导航键3。第一导航键2和第二导航键3均为微型五向开关，其本质是组合在一起的五个开关，向前后左右拨动或按下可分别接通相应的开关触点。将控制器的十个输入端分别接第一导航键2和第二导航键3的十个开关触点。控制器的三个输出端分别经三个发光二极管D1～D3接电源，发光二极管D1～D3即用于显示双导航键输入设备当前状态信息的指示灯。其中，发光二极管D1用于指示大写锁定，发光二极管D2用于指示数字锁定，发光二极管D3用于指示光标锁定。控制器和PS2键盘接口的使能端VCC均接电源，控制器和PS2键盘接口的接地端GND均接地，控制器的两个输出端分别接PS2键盘接口的数据输入端DATA和时钟信号端CLK。2 is a circuit schematic diagram of the controller of Embodiment 1. The ten inputs of the controller are connected to the
实施例1正常工作时，其工作程序流程见图3。实施例1中，第一导航键2和第二导航键3均为SMK公司的JXS0000-1401F型多功能操作设备，控制器为STC89C52RC型单片机。
In the normal operation of Embodiment 1, the working procedure flow is shown in Figure 3. In the first embodiment, the
实施例2Example 2
实施例2的双导航键输入设备包括底座1、第一导航键2和第二导航键3，上述组件的安装结构与实施例1相同。实施例2中第一导航键2和第二导航键3外接主机，由主机采集和编译第一导航键2和第二导航键3的动作信号，编译规则见表1～3。实施例2的底座1上设置有用于显示双导航键输入设备当前状态信息的指示灯或显示屏，指示灯或显示屏的输入端外接主机，由主机控制指示灯或显示屏显示。The dual navigation key input device of
以上所述实施方式仅为本发明的优选实施例，而并非本发明可行实施的穷举。对于本领域一般技术人员而言，在不背离本发明原理和精神的前提下对其所作出的任何显而易见的改动，都应当被认为包含在本发明的权利要求保护范围之内。 The embodiments described above are only preferred embodiments of the invention, and are not exhaustive of the practice of the invention. It is to be understood by those skilled in the art that the present invention is intended to be included within the scope of the appended claims.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967201.3 | 2015-12-22 | ||
| CN201510967201.3A CN105573514A (en) | 2015-12-22 | 2015-12-22 | Input equipment with double navigation keys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017107918A1 true WO2017107918A1 (en) | 2017-06-29 |
Family
ID=55883742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2016/111288 Ceased WO2017107918A1 (en) | 2015-12-22 | 2016-12-21 | Double navigation key input device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105573514A (en) |
| WO (1) | WO2017107918A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573514A (en) * | 2015-12-22 | 2016-05-11 | 武雄英 | Input equipment with double navigation keys |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2585674Y (en) * | 2002-12-18 | 2003-11-12 | 李尧 | Handle of game machine |
| CN101131574A (en) * | 2006-08-23 | 2008-02-27 | 鸿富锦精密工业（深圳）有限公司 | Rocker control system and method |
| US20100052950A1 (en) * | 2008-08-30 | 2010-03-04 | Stephen Reid Collier | Multi-input multi-directional device for computer or electronic device input (keyboard-type device) |
| CN204798824U (en) * | 2015-06-08 | 2015-11-25 | 深圳市宇驰达电子有限公司 | Game pad |
| CN105573514A (en) * | 2015-12-22 | 2016-05-11 | 武雄英 | Input equipment with double navigation keys |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256443A (en) * | 2007-02-27 | 2008-09-03 | 黄金富 | Input device and corresponding input method being suitable for game machine and handhold equipment |
| JP2012168932A (en) * | 2011-02-10 | 2012-09-06 | Sony Computer Entertainment Inc | Input device, information processing device and input value acquisition method |
| US8649164B1 (en) * | 2013-01-17 | 2014-02-11 | Sze Wai Kwok | Ergonomic rearward keyboard |
| CN103164160A (en) * | 2013-03-20 | 2013-06-19 | 华为技术有限公司 | Left hand and right hand interaction device and method |
-
2015
- 2015-12-22 CN CN201510967201.3A patent/CN105573514A/en active Pending
-
2016
- 2016-12-21 WO PCT/CN2016/111288 patent/WO2017107918A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2585674Y (en) * | 2002-12-18 | 2003-11-12 | 李尧 | Handle of game machine |
| CN101131574A (en) * | 2006-08-23 | 2008-02-27 | 鸿富锦精密工业（深圳）有限公司 | Rocker control system and method |
| US20100052950A1 (en) * | 2008-08-30 | 2010-03-04 | Stephen Reid Collier | Multi-input multi-directional device for computer or electronic device input (keyboard-type device) |
| CN204798824U (en) * | 2015-06-08 | 2015-11-25 | 深圳市宇驰达电子有限公司 | Game pad |
| CN105573514A (en) * | 2015-12-22 | 2016-05-11 | 武雄英 | Input equipment with double navigation keys |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105573514A (en) | 2016-05-11 |
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