KR101781528B1 - Wireless Mouse and Wireless Keyboard Combo set for Dual Computer and Operating method thereof - Google Patents
Wireless Mouse and Wireless Keyboard Combo set for Dual Computer and Operating method thereof Download PDFInfo
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- KR101781528B1 KR101781528B1 KR1020160025096A KR20160025096A KR101781528B1 KR 101781528 B1 KR101781528 B1 KR 101781528B1 KR 1020160025096 A KR1020160025096 A KR 1020160025096A KR 20160025096 A KR20160025096 A KR 20160025096A KR 101781528 B1 KR101781528 B1 KR 101781528B1
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- receiver
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- mouse
- channel selection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
- G06F3/0231—Cordless keyboards
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03543—Mice or pucks
Abstract
The present invention relates to a wireless mouse for a dual computer and a wireless keyboard combo set in which a channel selection button is provided on a wireless mouse and the wireless keyboard is simultaneously switched by pressing the channel selection button on the computer to be used, will be. That is, when the channel selection button is operated in the present invention, the activation signal is transmitted to all the receivers, and data generated by the input means such as a wireless keyboard is also transmitted to all the receivers. Only the receiver, Means for transferring the data of the means to its own computer. Therefore, there is an advantage that one computer can be selected and used in a more improved way.
Description
The present invention relates to a wireless mouse and a wireless keyboard combo set for a dual computer, and more particularly, to a wireless mouse and a wireless keyboard combo set, And a wireless mouse and a wireless keyboard combo set capable of selecting a computer to be used in a more convenient manner by placing a channel selection button on a wireless mouse or a wireless keyboard.
To simplify the explanation, I will describe the channel selection button on the wireless mouse.
Nationally, security damage caused by hacking through the Internet is continuing. As a result, the government has made it mandatory to use PCs. Network separation is divided into logical network separation and physical network separation. By the end of 2014, it is obligatory to separate the physical network from the computer network, which essentially blocks the internal business network and the external internet network. (Source: Guidelines for Separating Financial Data Network)
The physical network separation uses two computers, which can not efficiently use the work space because two keyboards and a mouse are used. To solve this problem, one KVM switch, which uses a wired keyboard and a wired mouse, or a distributor that distributes a channel, is used, which is inconvenient in terms of cost and wiredness.
Several computers, such as desktops, laptops, smart phones, smart pads, tablet PCs, etc., are in use, and each computer has its own input device such as a mouse and a keyboard.
In order to focus the wireless keyboard at the same time by the operation of the channel selection button on the wireless mouse, the wireless keyboard must have a separate receiving unit for sensing the movement of the wireless mouse, and the receiving unit of the wireless keyboard You should keep "Standby Mode" because you need to watch. However, in such a case, the battery-operated wireless keyboard has a problem of battery consumption and becomes unusable for a long time.
The present invention has been made in order to meet the above-mentioned demand of the prior art, and the present invention has been made to provide a wireless communication device capable of smoothly using two computers wirelessly without a KVM switch or a splitter, And a wireless mouse and a wireless keyboard combo set in which a channel selection button is placed on a wireless mouse or a wireless keyboard to select a computer to be used in a more convenient manner.
Because wireless mice and wireless keyboards use batteries, power consumption issues are an important factor. If you want to focus the wireless mouse and the wireless keyboard to a computer that you want to use simultaneously with a channel selection button on a wireless mouse, you can attach a transceiver module that allows the wireless mouse and the wireless keyboard to communicate with each other, It requires a receiver module that detects the signal of the wireless mouse, which causes a big problem in battery consumption. This is because the wireless keyboard must be in a state where it can always detect the signal of the wireless mouse, that is, "Standby Mode". (As a result of testing, the wireless keyboard can be used only for one day on a regular alkaline battery basis). In order to solve the power consumption problem of the wireless keyboard, a wireless mouse and a wireless keyboard can be simultaneously focused on a computer to be used without the communication means between the wireless mouse and the wireless keyboard of the present invention.
According to an aspect of the present invention, there is provided a dual-use computer mouse and a wireless keyboard combo set including: a first receiver connected to a first computer and activated only when receiving a first activation signal; A second receiver connected to the second computer and activated only when receiving the second activation signal; A first channel selection button and a second channel selection button for selecting the first activation signal or the second activation signal; The first channel selection button and the second channel selection button are provided. When any one of the channel selection buttons is operated, an activation signal of the operated channel selection button is transmitted to the first receiver and the second receiver simultaneously Input means; And a second input means for simultaneously transmitting input data to the first receiver and the second receiver, wherein the first receiver or the second receiver activated by the first activation signal or the second activation signal according to the selection of the channel selection button The input data of the second input means is input to the first computer or the second computer only by the second receiver, and the deactivated first receiver or second receiver receives the input data of the second input means, Or is not input to the second computer.
And the first input means and the second input means may be devices configured independently, or may be devices configured together.
According to another aspect of the present invention, there is provided a computer system comprising first to n-th receivers corresponding to first to n-th computers; N-th channel selection buttons corresponding to the selected one of the first to n-th receivers, and a first to an n-th channel selection buttons corresponding to the first to the n-th receivers, A remote controller having a transmitter for transmitting at the same time; And two or more input means for simultaneously transmitting input data to the first to n-th receivers, wherein an activation signal generated by the first to the n-th channel selection buttons among the first to n < th & And the input data is transmitted to a computer of the dual-computer. The present invention provides a wireless mouse and a wireless keyboard combo set for a dual-computer.
Here, among the first to n-th receivers, computers corresponding to receivers receiving other activation signals are not operated and receive the input data. In addition, the first to n-th receivers transmit the input data to its own computer in the active state and not transmit the input data to its own computer in the inactive state.
According to still another aspect of the present invention, there is provided a method of controlling a portable terminal, comprising: a first step in which a channel selection button provided in a first input means is operated in a state where a receiver is connected to or connected to a plurality of computers; A second step in which the first input means simultaneously transmits an activation signal to all receivers according to the operation of the channel selection button; A third step of determining whether all the receivers are receiving the activation signal and determining whether the receiver is an activation signal of the receiver; In a state in which data generated according to the operation of the second input means is transmitted to all receivers, only the receiver, which is the activating signal of the activating signal, is activated and transmits the data transmitted from the second inputting means to its own computer, And the fourth step of not transmitting the data input from the second input means to the own computer in the disabled state.
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According to the dual computer wireless mouse and the wireless keyboard combo set of the present invention, it is possible to selectively use two computers with a single wireless mouse and a wireless keyboard, so that cost reduction and work space efficiency are improved, The wireless keyboard can be used to input data to the computer designated by the wireless mouse, thereby improving the user's convenience.
According to the present invention, the function of the channel selection button of the wireless mouse, which simultaneously moves the focusing of the wireless keyboard to the computer to be used by the user, appears to have a communication means capable of transmitting and receiving separately between the wireless mouse and the wireless keyboard. There is no such communication means. Therefore, it can be configured to operate in "WakeUp Mode" when using wireless mouse and wireless keyboard, and "Sleep Mode" or "Power Off Mode" when not using it. As a result, wireless keyboards can be used for more than a year based on alkaline batteries).
1 is a photograph showing a wireless mouse of the present invention,
FIG. 2 is a unidirectional system block diagram of a wireless mouse and a wireless keyboard according to the present invention,
3 is a bi-directional system block diagram in which two transmitters are mounted on a wireless mouse and a wireless keyboard according to the present invention,
4 is a unidirectional system block diagram in which one transmitter is mounted on a wireless mouse and a wireless keyboard according to the present invention,
FIG. 5 is a bi-directional system block diagram of a wireless mouse and a wireless keyboard according to the present invention,
FIG. 6 is a unidirectional block diagram of a wireless input device in which a plurality of transmission units are mounted in a computer, which allows a user to operate a plurality of wireless input devices in a desired computer among a plurality of computers according to the present invention,
FIG. 7 is a bi-directional block diagram of a wireless input device including a plurality of transmitters in a method of allowing a user to operate a plurality of input devices on a desired computer among a plurality of computers according to the present invention,
FIG. 8 is a unidirectional block diagram of a wireless input device in which one transmitter is mounted on a computer, which allows a user to operate a plurality of input devices on a desired computer among a plurality of computers according to the present invention,
FIG. 9 is a bi-directional block diagram of a wireless input device in which one transmitter is mounted among a plurality of computers according to the present invention, in which a user can operate a desired computer with a plurality of input devices.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
[Example]
The description of the present invention explains the features of the present invention on a mouse and a keyboard having basic functions.
1, the
Wireless keyboards are keyboards that are arranged externally with a "QWERTY" keyboard. The channel selection button can be used by being attached to the wireless keyboard, and can also be applied as a toggle button, which is included in the spirit of the present invention.
In order to simplify the description of the contents, the input operation of the position of the wireless mouse except the input operation of the channel selection button, the left button of the mouse, the right button of the mouse, and the scroll button is simply referred to as "mouse input" The input operation is called "keyboard input ".
2 is a unidirectional system block diagram in which a wireless mouse and a wireless keyboard according to the present invention each include two transmitting units.
2, the wireless mouse a 300 of the present invention includes a mouse transmitter a 310 for transmitting an input signal to a receiver a 220 of a receiver a 200 and a receiver a b for receiving b a A
The wireless keyboard a 400 of the present invention includes a keyboard transmitter a 410 for transmitting an input signal to a receiver a 220 of a receiver a 200 and a
The receiver a 200 is connected to the computer a 100 and the
The receiver a 200 includes a receiver a 220 for receiving a signal transmitted from a mouse transmitter a 310 and a keyboard transmitter a 410, an LED a 250 indicating an operation state of the receiver a 200, And a
The
The mouse transmitting unit a 310 and the keyboard transmitting unit a 410 and the receiving unit a 220 of the receiver a 200 are the same channel and the mouse transmitting
When the channel selection button a 360 is pressed, the
(1) The mouse transmission unit a 310 sends an "activation" signal to the reception unit a 220 of the receiver a 200; The controller a 230 of the receiver a 200 receiving the "activation" signal from the receiver a 220 of the receiver a 200 in the above (1) turns on the LED a 250, To the computer a (100).
(2) The mouse transmitting
(3) Then, the mouse transmitting
Here, even if the process (3) is omitted, the wireless mouse operates normally, but the battery consumption of the wireless mouse can be further reduced.
The receiver a 200 is in an "active" state and the LED a 250 (250) is in an " active state " The
In this state, when the mouse input or the keyboard input is received, only the computer a 100 is operated.
Otherwise, when the channel
(4) The mouse transmitting
(5) The mouse transmitting section a 310 sends a "deactivate" signal to the receiving section a 220 of the receiver a 200; The control unit a 230 receiving the "deactivation" signal from the receiving unit a 220 of the receiver a 200 in step (5) turns off the LED a 250, and when a mouse input or a keyboard input is received, Ignore it without sending it.
(6) Then, the mouse transmitting unit a 310 itself becomes "non-operating state ".
When the states after the above processes (4), (5), and (6) are summarized,
The
In the above state, when only a mouse input or a keyboard input is received, only the
The mouse input of the wireless mouse a 300 is transmitted only through the mouse transmitting unit in the "operation waiting state" by the mouse control unit a 330 and is transmitted to the receiving unit of the receiver having the same channel, The transmitter does not operate.
Unlike the wireless mouse a 300, the keyboard input of the wireless keyboard a 400 is transmitted to the receiver a 200 and the receiver a via the keyboard transmitter a 410 and the
The terms "activation", "deactivation", "non-operating state", and "waiting for operation" shown in the above description means a state after the corresponding controller executes the corresponding process according to a specific command signal. The meaning and terminology of the terms have been described.
The "activation" of the receiver means a state in which when the mouse input or the keyboard input is inputted to the control section of the receiver through the receiver section of the selected receiver, the control section of the receiver is sent to the connected computer, , "Deactivation" of the receiver means a state in which, when the mouse input or the keyboard input is inputted to the control section of the receiver through the receiver section of the selected receiver, the control section of the receiver does not send it down to the computer but ignores it. That is, the "disabled" receiver does not operate on the inputs of the mouse or keyboard except for the operation of the channel selection button of the wireless mouse.
The "non-operating state" of the mouse transmitting unit means a state in which the mouse input can not be transmitted through the corresponding mouse transmitting unit, except for the signal generated by the channel selecting button.
The "operation waiting state" of the mouse transmission unit means a state in which a signal generated by the channel selection button and a mouse input can be transmitted through the corresponding mouse transmission unit.
FIG. 3 is a bi-directional system block diagram in which two transmitting units are mounted on a wireless mouse and a wireless keyboard according to the present invention.
3, the
The
The
The
The
The mouse transmitting
When the channel
(7) the mouse
(8) the mouse
(9) Then, the mouse transmitting
The
In this state, only the
Alternatively, if the channel selection button d (363) is pressed, the mouse controller c (332) proceeds to the processor below.
(10) The mouse
(11) the mouse
(12) Then, the mouse transmitting unit c (312) itself becomes the "non-operating state ".
The
In this state, only the
The mouse input of the
Unlike the
In the above description, it is described that the wireless keyboard transmits the input signal to two receivers at the same time using two transmission units, but it is also possible to send out the signals to the "activated" receiver by using only one transmission unit. This is because the receiver also has a transmitter that can transmit a command signal to the wireless keyboard, so that the status information of the "deactivated" receiver can be communicated to the wireless keyboard, making the corresponding transmitter of the wireless keyboard "inactive". Compared with the unidirectional transmission / reception type, the advantage of the bi-directional transmission / reception type is that since the computer can read the status values of the wireless mouse and the wireless keyboard, the battery life of the wireless mouse and the wireless keyboard can be measured, Accordingly, various functions can be produced by inserting functions that the user can perform in both directions.
FIG. 4 is a unidirectional system block diagram in which a wireless mouse and a wireless keyboard according to the present invention are mounted with one transmitter unit.
4, the
The
A
The
The
When the channel
The
In this state, when a mouse input or a keyboard input is received, only the
When the channel
At the same time, the control unit f (235) of the receiver f (205) receiving the "activation of the receiver g" turns off the LED f (255) and ignores it without sending it to the computer f (105).
The
In this state, when the mouse input or the keyboard input is received, only the
The mouse input of the
The
5 is a bi-directional system block diagram in which a wireless mouse and a wireless keyboard according to an embodiment of the present invention are mounted with one transmitter.
5, the
The
A
The
The receiver i 208 includes a receiver i 228 for receiving signals transmitted from the
The
When the channel
The
In this state, only the
When the channel selection button i 368 is pressed, the mouse
At the same time, the control unit h (237) of the receiver h (207) receiving the signal "activation of the receiver h" turns off the LEDh (257) and ignores it without sending it to the computer h (107).
The receiver i 208 is in the "activated" state, the
In this state, only the
The mouse input of the
The
Next, a description will be given of a method for expanding the applicability by explaining the channel selection button function in detail with reference to FIGS. 6 to 9. FIG.
6 to 9 are block diagrams of a method of selecting a desired computer by a user using a channel selection button among n computers and operating a computer selected by m input devices. In order to simplify the explanation, the channel selection button has been separated, and the term "receiver" has been omitted by incorporating a receiver into a computer, and the receiver, transmitter, and controller shown in each of the n computers are modules in the receiver.
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6, there are n computers, each computer has one receiving unit having a different channel, and a control unit for controlling the input signal processing and the corresponding receiving unit.
There are m input devices, n input devices having different channels in each input device, an input part for inputting, and a control part for controlling modules in the input / output signal processing and input device.
The remote controller 1 (80) is a tool for connecting m input devices to a computer to be used by the user among the n computers. The remote controller 1 (80) includes n transmitting units having different channels and n channel selecting buttons for selecting each channel, And a control unit R (85) for controlling the input signal processing and the module in the remote controller 1 (80).
Is the same channel as the transmitter 1 (11) of the computer 1 (10), the transmitter 1 (81) of the remote controller 1 (80) and the
Here, "i" in the computer i, the transmitter i, the receiver i, the controller i and the channel selection button i means "arbitrary ", and is commonly used in Figs. 6, 7, 8 and 9 .
When an arbitrary channel selection button i 88 on the remote controller 1 (80) is pressed, the controller R (85) of the remote controller 1 (80) proceeds to the following process.
(13) The
(14) Each transmitting section of the remote controller 1 (80) except the transmitting section i (83) of the remote controller 1 (80) sends a "deactivation" signal to the corresponding receiving section of each computer. In (14), the corresponding control unit receiving the "deactivation" command signal from the corresponding receiving unit of each computer ignores each input signal coming from the m input devices.
In this state, only the computer i (30) operates when each signal input is received from m input devices.
For example, when the user presses the
As shown in FIG. 7, there are n computers, each computer has one receiving unit having a different channel, one transmitting unit A of the same channel, and a control unit for processing input / output signals and controlling the receiving unit and the transmitting unit A.
There are m input devices, n input sections each having different channels, and one receiver section A of the same channel, each of which has an input section for inputting, a module for processing input and output signals and a module .
The remote controller 2 (90a) is a device for connecting m input devices to a computer to be used by the user among the n computers, and has n transmission sections having different channels and n channel selection buttons for selecting channels, And a control unit R (95R) for controlling the modules inside the signal processing and remote controller 2 (90a).
Is the same channel as the
When an arbitrary channel selection button i (98i) on the remote controller 2 (90a) is pressed, the controller R (95a) of the remote controller 2 (90a) proceeds the following process.
(15) The
(16) Each transmitter of the remote controller 2 (90a) except the transmitter i (93a) of the remote controller 2 (90a) sends a "deactivation" signal to the corresponding receiver of each computer. In step (16), the corresponding control unit receiving the "deactivation" command signal from the corresponding receiving unit of each computer ignores each input signal coming from m input devices.
In the above state, only the computer i (30a) operates when each signal input is received from m input devices.
When the user inputs an input using an arbitrary
Herein, "j" in the input device j, the input section j, and the control section j means "arbitrary ", and is commonly used in FIG. 7 and FIG.
8, there are n computers, each computer has one receiving unit, and there is a control unit for processing the input signal and controlling the corresponding receiving unit.
There are m input devices, each input device has one transmitting part, and there are an input part for inputting and a control part for controlling modules in the input / output signal processing and input device.
The remote controller 3 (80b) is a tool for connecting m devices to a computer to be used by the user among the n computers, and includes a
The control unit R 82b of the
In addition to the
In this state, when each signal input is received from m devices, only the computer i (30b) is operated.
In the above description, the control units of n computers are programmed to perform command processing with "deactivated"
Referring to FIG. 9, there are n computers, each computer has one receiving unit of the same frequency, one transmitting unit B of the same channel, and a control unit for processing input and output signals and controlling the receiving unit and the transmitting unit B.
Each input device has m input devices, each input device has one transmitting section of the same frequency, and one receiving section B of the same channel. Each input device has an input section for inputting and a control section for controlling input / output signal processing and modules in the input device have.
The remote controller 4 (90c) is a tool for connecting m input devices to a computer to be used by the user among the n computers. The remote controller 4 includes a
The controller R 92c of the remote controller 4 90c is connected to the receiver of n computers via the
the control unit of the other computer in addition to the
In this state, only the computer i (30c) operates when each input signal is received from m devices.
In the above description, the "activation" and "deactivation" of the control unit of the n computers are programmed to perform the command processing with "deactivate" if it is not the "own activation" signal.
When the user inputs an input using an arbitrary
Since each input device described in the present invention independently operates, it is possible to use the battery for a long period of time because it is possible to use "Sleep Mode" or "Power Off Mode" when not in use and "Wake Up Mode" A plurality of input devices can be used in a computer desired by a user among a plurality of computers.
The present invention can be applied to a thing Internet or a wearable device, and can be applied to a smart device such as a smart phone or a smart pad.
6, 7, 8, and 9, the channel selection button of the remote controller may be inserted into any computer among n computers, and any input among m input devices It may also be inserted into the device.
Although the terms "n computers" and "m input devices", which are referred to in FIGS. 6, 7, 8, and 9, have been described for the sake of convenience, And may be implemented as m different types of input / output devices.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. And will be included in the described technical idea.
100: computer a 200: receiver a
201: receiver b 220: receiver a
221: Receiver b 300: Wireless mouse a
310: Mouse transmission unit a 311: Mouse transmission unit b
330: Mouse control unit a: Channel selection button a
361: Select Channel Button b 400: Wireless Keyboard a
410: keyboard transmission unit a 411: keyboard transmission unit b
Claims (10)
A second receiver connected to the second computer and activated only when receiving the second activation signal;
A first channel selection button and a second channel selection button for selecting the first activation signal or the second activation signal;
The first channel selection button and the second channel selection button are provided. When any one of the channel selection buttons is operated, an activation signal of the operated channel selection button is transmitted to the first receiver and the second receiver simultaneously Input means; And
And second input means for simultaneously transmitting input data to said first receiver and said second receiver,
The input data of the second input means is input to the first computer or the second computer only by the first receiver or the second receiver activated by the first activation signal or the second activation signal according to the selection of the channel selection button And the deactivated first receiver or second receiver is not input to the first computer or the second computer even if the input data of the second input means is received.
Wherein the first input means and the second input means are devices that are independently configured or configured together.
N-th channel selection buttons corresponding to the selected one of the first to n-th receivers, and a first to an n-th channel selection buttons corresponding to the first to the n-th receivers, A remote controller having a transmitter for transmitting at the same time; And
And two or more input means for simultaneously transmitting input data to the first to n-th receivers,
Wherein the receiver transmits the input data to its own computer only when the receiver receives the activation signal generated by the first through the n-th channel selection buttons of the first through the n-th receivers. And wireless keyboard combo set.
Wherein the first to n < th > receivers transmit the input data to its own computer in an active state and not transmit the input data to its own computer in a disabled state.
A second step in which the first input means simultaneously transmits an activation signal to all receivers according to the operation of the channel selection button;
A third step of determining whether all the receivers are receiving the activation signal and determining whether the receiver is an activation signal of the receiver; And
In a state in which data generated according to the operation of the second input means is transmitted to all the receivers, only the receiver whose activation signal is its activation signal transmits data transmitted from the second input means to its own computer, Lt; RTI ID = 0.0 > 1, < / RTI > further comprising the fourth step of not transferring data input from the second input means to its own computer.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020160025096A KR101781528B1 (en) | 2016-03-02 | 2016-03-02 | Wireless Mouse and Wireless Keyboard Combo set for Dual Computer and Operating method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020160025096A KR101781528B1 (en) | 2016-03-02 | 2016-03-02 | Wireless Mouse and Wireless Keyboard Combo set for Dual Computer and Operating method thereof |
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| KR20170102678A KR20170102678A (en) | 2017-09-12 |
| KR101781528B1 true KR101781528B1 (en) | 2017-09-25 |
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