TWI470479B - Keyboard with switching function - Google Patents

Description

Keyboard with switching function

The invention relates to a keyboard with a switching function, in particular to a keyboard which can switch different connection interfaces and is connected with an external digital device to transmit a keystroke signal.

The keyboard plays an extremely important role in the communication between people and technology. Most computers or other digital devices can use the keyboard as a communication interface, and the application of the keyboard has different connection methods with the advancement of technology.

The connection between the keyboard and the computer was developed from the original RS-232/DB-9 communication interface standard to the PS/2 communication interface, and finally developed to the most compatible USB communication interface, and the connection method is Wired connection is the main method. However, as the application of computers and digital devices gradually integrates into personalization and daily life, the application environment is no longer limited to desks or computer desks. Naturally, keyboards and computers or digital devices The connection between the two is also limited by the limited distance of the wired connection, and the need for wireless connection and wide range connection distance is slowly derived.

The wireless connection technology for achieving the wireless keyboard can be achieved by using an infrared connection method. However, the infrared rays have directivity, and the connection distance is usually within a few meters and the infrared rays are not shielded. The use angle and distance of the wireless keyboard are too narrow; then the wireless communication is developed. However, the communication specifications and communication protocols of the wireless communication originally have different communication specifications due to different designs of different manufacturers. The wireless keyboard's versatility and application range have been greatly reduced. Until recently, international manufacturers have developed radio communication standards to make most of the radio communication protocols unified, which is called Bluetooth technology. Therefore, the Bluetooth keyboard becomes the best wireless keyboard. Technical solution.

The birth of the Bluetooth keyboard allows the wireless keyboard to be used up to 10 meters away, and is not limited to computers, as long as there are digital devices compatible with Bluetooth keyboards, such as smart phones, PDAs, etc. Brings great convenience.

The only drawback is that Bluetooth technology is widely used and can be easily installed on most digital devices. However, due to its high cost, it has not become a standard device for digital devices, but usually with additional functions or optional. The mode is set on the digital device, and its universality cannot be compared with the traditional USB connection interface. For example, the Bluetooth technology of the desktop computer is not compatible or embedded in the BIOS booting program, so that the Bluetooth technology application is applied. Before the computer has entered the operating system to start the driver, or under the original boot system, such as the BIOS boot program, the traditional DOS operating system, etc., Bluetooth cannot be used, which makes the Bluetooth keyboard use blind spots. Therefore, for users who have a BIOS setting and have a need for a traditional DOS system, or have a connection with other digital devices that are not compatible with Bluetooth technology, a wired connection is usually provided in addition to the Bluetooth keyboard. The way the keyboard is ready for the occasion. When the user's main application environment is the operating environment supporting Bluetooth technology, the Bluetooth keyboard is used; when the user needs to operate in the BIOS screen, the traditional DOS system, and the environment that does not support Bluetooth technology, it can only be plugged and unplugged. Replace with another set of wired keyboards. In this way, the Bluetooth keyboard is extremely inconvenient for users who have a traditional operating environment and who do not support Bluetooth devices. It can be seen that the wireless keyboard is still waiting for a design that can adapt to various operating environments, and there is room for improvement.

The main purpose of the present invention is to make up for the lack of operation of the wireless keyboard in the digital device compared with the traditional working interface, and to provide a keyboard with a wireless connection interface and a wired connection interface, so that the keyboard can adapt to various working environments.

To achieve the above objective, the present invention comprises a button module having a plurality of buttons for converting a user's action of tapping a button into a keyboard signal, a wired output interface and a wireless output interface. And transmitting the keyboard signal by wire or wirelessly, and providing a micro control unit coupled to the wired output interface and the wireless output interface, and receiving a switching signal, according to the switching signal The keyboard transmits the keyboard signal from the wired output interface or the wireless output interface, which is the basic architecture of the present invention.

According to the above technical solution, the present invention can be connected to an external digital device using a wireless output interface (such as a Bluetooth interface) in a general operating system, and is more suitable for a connection method that does not support a wireless output interface. The wired output interface (such as the USB interface) can be used to connect in the original BIOS or DOS system, so that the user does not have to prepare two sets of wired keyboard and wireless keyboard alternate replacement at the same time, which greatly improves the keyboard's wide compatibility. In addition, the keyboard of the present invention can be applied to simultaneously connect two external digital devices by using the architecture, for example, the wireless output interface and the wired output interface can be simultaneously used with the smart phone and The desktop computer is connected, and the switching signal is used to switch the keyboard signal transmitted through the wireless output interface or the wired output interface, so that the keyboard of the present invention can quickly switch the connection relationship between the smart phone and the desktop computer. The keyboard of the present invention can be easily switched and operated between two devices, greatly increasing the general versatility of the keyboard. .

10‧‧‧ digital devices

11‧‧‧ digital devices

20‧‧‧ keyboard

21‧‧‧Key Module

211‧‧‧ button

22‧‧‧Wired output interface

23‧‧‧Wireless output interface

24‧‧‧Switching device

30‧‧‧Keyboard signal

40‧‧‧Microcontrol unit

50‧‧‧Switching signal

FIG. 1 is a schematic diagram of a connection relationship according to an embodiment of the present invention;

2 is a schematic view of an embodiment of the present invention

FIG. 3 is a schematic diagram of a connection relationship according to another embodiment of the present invention

4 is a schematic view of another embodiment of the present invention

The detailed description and technical contents of the present invention will now be described as follows:

The present invention is a keyboard having a switching function. Please refer to FIG. 1 and FIG. 2 for a schematic diagram of a connection relationship and an embodiment of the embodiment of the present invention. As shown in the figure, The button module 21, a wired output interface 22, a wireless output interface 23, and a micro control unit 40, wherein the button module 21 has a plurality of buttons 211 for converting the action of the user tapping the button 211 into a keyboard signal. 30. The keyboard signal 30 can be transmitted through the wired output interface 22 in a wired connection, or the keyboard signal 30 can be transmitted through the wireless output interface 23 in a wireless connection, but the wired output interface 22 and the wireless output The interface 23 is coupled to the micro control unit 40, and the micro control unit 40 receives a switching signal 50. The switching signal 50 determines the transmission of the keyboard signal 30 from the wired output interface 22 or the wireless output interface. The transmission is performed in a wired manner or in a wireless manner. The above is the basic architecture of the present invention. The switching signal 50 is triggered by a switching device 24, and the switching device 24 can be a push button switch or a toggle switch on the keyboard 20. Or the pressing combination of the plurality of buttons 211 on the button module 21, the wired output interface 22 can be a USB transmission interface, and the wireless output interface 23 can be a Bluetooth transmission. The interface. Referring to FIG. 4 , the pressing combination of the present invention is composed of at least two buttons 211 on the button module 21 , and is configured to output the switching signal 50 when the two buttons 211 are simultaneously pressed. For example, in an embodiment, The pressing combination may be a two-way key on the button module 21 (as indicated by the button 211 in FIG. 4), when the user wants to switch the button module 21 from the wired output interface 22 to the wireless output. At the interface 23, the buttons 211 included in the pressing combination can be simultaneously pressed, the switching signal 50 is output, and the connection mode between the keyboard and the digital device 10 is switched.

In the foregoing drawings and contents, as shown in FIG. 1 and FIG. 2, an embodiment of the keyboard 20 connected to a single digit device 10 is provided. For convenience of description, the digital device can be applied. 10 is shown in the figure as a computer host, but is not intended to limit the present invention but for convenience of explanation, wherein when the user turns on the digital device 10, in order to enable the keyboard 20 to be BIOS (Basic Input Output System) When the operation is performed in an environment of a lower-order operating system or in a wireless connection mode, the switching device 24 can output the switching signal 50, and the switching signal 50 is transmitted to the micro control unit 40, and finally The keyboard signal 30 can be transmitted to the digital device 10 via the wired output interface 22 via the micro control unit 40, so that the keyboard 20 of the present invention can be connected to the digital device 10 by means of a wired connection without the digital device. 10 can not use the wireless connection to lose the function of the keyboard 20, if the digital device 10 continues to load the higher-order software operating system and start the wireless connection device, at this time, Bit equipment When the wireless connection mode is enabled, the user can switch the switching device 24 to output the switching signal 50, and then the switching signal 50 is transmitted to the micro control unit 40, and the wireless control unit 40 determines the wireless output interface 23 via the wireless control unit 40. Transmitting the keyboard signal 30 to the digital device 10, it can be seen that the keyboard 20 of the present invention can switch the transmission mode to the wired output interface regardless of the connection mode acceptable to the corresponding digital device 10. 22 or the wireless output interface 23 is connected to greatly increase the convenience of the user.

In addition, the present invention has another applicable mode. Please refer to FIG. 3 and FIG. 4 again, which are schematic diagrams of a connection relationship and another embodiment of another embodiment of the present invention, which are different from the foregoing application manners. The application mode is mainly used to connect the two-digit devices 10 and 11 at the same time. For convenience of description, the digital devices 10 and 11 are respectively a computer host and a smart phone, however, It is not intended to limit the present invention, and may be a combination of two computer mainframes or two smart phones or other digital devices 10, 11, wherein the keyboard 20 of the present invention is connected to the digital device 10 by the wired output interface 22, When the wireless output interface 23 is connected to the digital device 11, the switching signal 50 can be generated by the switching device 24, and the switching signal 50 is further transmitted to the micro control unit 40, so that the keyboard 20 of the present invention can be switched and connected. Between the wired output interface 22 and the wireless output interface 23, in other words, the keyboard 20 is switched between the digital device 10 and the digital device 20, and the legend is implemented. The keyboard 20 can be connected to the host computer or connected to the smart phone by the switching device 24, whereby the keyboard 20 can be operated by the user only by using a keyboard 20 Between the two digit devices 10 and 11, the invention has a wide range of applications and functions.

While the invention has been described above by way of a preferred embodiment, it is not intended to limit the invention, and any modifications and refinements may be made without departing from the spirit and scope of the invention. In the present invention, the scope of the present invention is therefore defined by the scope of the appended claims.

In summary, the conventional technology of the present invention enhances the above functions, and should fully comply with the novelty and progressive statutory innovation patent requirements, and submit an application according to law, and invites you to approve the invention patent application to encourage invention. To the sense of virtue.

10‧‧‧ digital devices

11‧‧‧ digital devices

20‧‧‧ keyboard

21‧‧‧Key Module

211‧‧‧ button

22‧‧‧Wired output interface

23‧‧‧Wireless output interface

24‧‧‧Switching device

Claims (3)

A keyboard with a switching function includes: a button module having a plurality of buttons for converting a user's action of tapping a button into a keyboard signal, wherein the pressing combination of the plurality of buttons on the button module is triggered a switching signal is generated; a wired output interface transmits the keyboard signal in a wired manner; a wireless output interface transmits the keyboard signal wirelessly; and a micro control unit coupled to the wired output interface and the wireless output The interface receives the switching signal, and determines, according to the switching signal, that the keyboard transmits the keyboard signal from the wired output interface or the wireless output interface. The keyboard having a switching function according to claim 1, wherein the wired output interface is a USB transmission interface. The keyboard having a switching function as described in claim 1 or 2, wherein the wireless output interface is a Bluetooth transmission interface.