CN2450710Y - Computer keyboard with multiple signal input and output functions - Google Patents

Abstract

The utility model relates to a computer keyboard with multiple signal input and output functions, which enables the keyboard to have the input and output functions of a mobile phone, and a computer can exchange data with the mobile phone. The keyboard body comprises a circuit control unit, a communication interface switching unit and a keyboard scanning matrix, a mobile phone slot and a function key group are arranged on the keyboard body, and the function key group switches the states of the first switch and the second switch through the circuit control unit. The common end joints of the first switch and the second switch are respectively connected with the mobile phone slot and the computer, the first joints (normally open) of the first switch and the second switch are connected with the communication interface switching unit, and the second joints (normally closed) of the first switch and the second switch are connected with the circuit control unit.

Description

Computer keyboard with multiple signal input and output functions

The utility model relates to a computer keyboard, more precisely relates to a computer keyboard which can make the computer keyboard also have the input/output function of a mobile phone.

Looking forward to the future, using a computer keyboard with a TV to surf the Internet will become an important part of family life. In addition, using mobile phones to communicate with each other is becoming one of the contents of family members' lives. If the functions of mobile phones can be directly combined with computer keyboards, The added value of the keyboard will be greatly increased.

The purpose of this utility model is to design a computer keyboard with multiple signal input and output functions, which can make the computer keyboard a device with mobile phone input/output functions, that is, the computer keyboard can be used as the input unit of the mobile phone, and can also be used as The input unit of the computer, thereby greatly improving the added value of the computer keyboard, and bringing convenience to the user.

The purpose of this utility model is achieved in this way: a computer keyboard with multiple signal input and output functions, including a keyboard body, the keyboard body includes a circuit control unit, a communication interface transfer unit and a keyboard scanning matrix, and the circuit control unit and keyboard scanning The matrix connection is characterized in that: it also includes a mobile phone slot, which is arranged on the keyboard body; it also includes a first switch, a second switch and a group of function keys for operating the first and second switch states, and the first switch The public terminal point of the second switch is connected to the mobile phone slot, the public terminal point of the second switch is used for connecting to the computer, the first contact point of the first switch and the second switch is connected to the communication interface adapter unit, the first switch and the second switch The second contact of the switch is connected to the circuit control unit; the function key group is arranged on the keyboard body and communicated with the circuit control unit.

The communication interface conversion unit is a universal serial bus or standard RS-232.

The function key group includes a first function key, a second function key and a third function key; when the first function key is pressed, the circuit control unit is operated to make the common termination point of the first switch and the second function key The two contacts are connected and disconnected from the first contact, and at the same time, the common terminal point of the second switch is connected to the first contact and disconnected from the second contact; when the second function key is pressed, the circuit control unit is operated , make the common termination point of the first switch communicate with its first contact and disconnect it from its second contact, and at the same time make the common termination point of the second switch communicate with its second contact and disconnect it from its first contact; When the third function key is used, the circuit control unit is operated to connect the common termination point of the first switch with its first contact and disconnect it from its second contact, and at the same time make the common termination point of the second switch One contact is connected and disconnected from the second contact.

The utility model relates to a computer keyboard with various signal input and output functions, which is connected with a computer host and includes a keyboard body. The keyboard body includes a circuit control unit and a keyboard scanning matrix, and the circuit control unit is connected with the keyboard scanning matrix. It is characterized in that: It also includes a mobile phone slot, which is arranged on the keyboard body; and a switch module, which is coupled between the circuit control unit, the mobile phone slot and the computer host, and is used to selectively conduct the circuit control unit and the internal circuit of the mobile phone in the slot of the mobile phone, or conduct the internal circuit of the computer host and the mobile phone in the slot of the mobile phone, or conduct the control unit of the circuit and the host computer.

The computer keyboard with various signal input and output functions of the utility model enables the computer host to communicate with the circuit control unit when the second switch is switched to the normally closed line state and the first switch is switched to the normally open line state; When the function key group is pressed, it will communicate with the circuit control unit, and keep the first and second switches in the normally open or normally closed circuit state; When the switch remains in the normally open line state, it will be connected with the circuit control unit; and when the communication interface adapter unit of the keyboard body is connected with the common terminal point of the first and second switches, the computer host will be connected with the mobile phone slot. Make the host computer and the mobile phone exchange data.

The computer keyboard with multiple signal input and output functions of the utility model combines the functions of the mobile phone on the computer keyboard, and through the circuit control unit, switch interface and communication transmission operation inside the keyboard, data exchange can be performed between the computer and the mobile phone. It can be used as the input device of the mobile phone and the input device of the computer at the same time.

Below in conjunction with embodiment and accompanying drawing, further illustrate the technology of the present utility model.

Figure 1 is a schematic diagram of the three-dimensional appearance and structure of a computer keyboard with multiple signal input and output functions

Figure 2 is a block diagram of the circuit structure of a computer keyboard with multiple signal input and output functions

Fig. 3 is a schematic diagram of an operating state of a computer keyboard with multiple signal input and output functions

Fig. 4 is a schematic diagram of another operating state of a computer keyboard with multiple signal input and output functions

Fig. 5 is a connection circuit diagram of the circuit control unit of the computer keyboard with multiple signal input and output functions and the keyboard scanning matrix

In each figure, 1 is a keyboard body, 11 is a keyboard scanning matrix, 12 is a circuit control unit, 13 is a communication interface switching unit, and 14 is a function key group. 2 is the phone slot, 3 is the computer. H1 is the first function key, H2 is the second function key, and H3 is the third function key. SW1 is the first switch, and SW2 is the second switch. A1 and A2 are the first (normally open) contacts, B1 and B2 are the second (normally closed) contacts, and C1 and C2 are common terminal points.

Referring to Fig. 1, the computer keyboard with multiple signal input and output functions of the present utility model comprises a keyboard body 1 and a mobile phone slot 2, and the mobile phone slot 2 is arranged on the keyboard body 1 for users to insert a mobile phone, and on the keyboard body 1 A function key group 14 composed of first, second and third function keys H1, H2 and H3 is also provided. The keyboard body 1 is connected with the computer 3 . As shown in Figure 1.

Referring to Fig. 2 and Fig. 5, a circuit control unit 12 composed of a microprocessor U1, a resistor R1, capacitors C1, C2, light emitting diodes D1, D2, D3, etc. is provided inside the keyboard body 1 . The input port of the circuit control unit 12 is connected with an 8×18 keyboard matrix 11 . The circuit control unit 12 is also respectively connected to the normally closed terminals B1 and B2 of the first and second switches SW1 and SW2, while the normally open terminals A1 and A2 of the first and second switches SW1 and SW2 are respectively connected to the communication interface switching Unit 13, such as a Universal Serial Bus (USB) or standard RS-232 interface. The common terminals C1 and C2 of the first and second switches SW1 and SW2 are respectively connected to the mobile phone slot 2 and the computer 3 .

Mobile phone slot 2 is arranged on the upper right part of keyboard body 1, for inserting various mobile phones, and can be communicated with the internal circuit of this mobile phone, and the working power of mobile phone can come from outside or be supplied by computer. The function key group 14 composed of the first, second and third function keys H1, H2 and H3 is arranged on the upper middle of the keyboard body 1, each function key will communicate with the circuit control unit 12 when pressed, and then make the first . The second switches SW1 and SW2 are kept in a normally open or normally closed circuit state.

The common terminal point C1 of the first switch SW1 is connected to the slot 2 of the mobile phone. When the first switch SW1 forms a conductive state with the common terminal point C1 and the normally closed terminal point B1, the circuit unit inside the mobile phone will communicate with the circuit control unit 12. Conversely, when the common terminal point C1 of the first switch SW1 and the normally open terminal point A1 form a conduction state, the circuit unit inside the mobile phone will communicate with the communication interface adapter unit 13 .

The internal circuit unit of the computer 3 is connected to the common terminal point C2 of the second switch SW2, and when the common terminal point C2 of the second switch SW2 is in a conduction state with the normally closed terminal point B2, the internal circuit unit of the computer 3 will be connected to the circuit control unit 12 On the contrary, when the common terminal point C2 of the second switch SW2 and the normally open terminal point A2 are in a conduction state, the internal circuit unit of the computer 3 will communicate with the communication interface conversion unit 13 .

When the first function key H1 is pressed, the contact of the first switch SW1 is switched to a normally closed circuit state, and the contact of the second switch SW2 is switched to a normally open circuit state. That is, the common terminal point C1 of the first switch SW1 is connected with the normally closed terminal point B1 (the common terminal point C1 of SW1 is not connected with the normally open terminal point A1); the common terminal point C2 of the second switch SW2 is connected with the normally open terminal point A2 ( The public terminal point C2 of SW2 is not connected with the normally closed terminal point B2), at this time, the circuit control unit 12 of the keyboard body 1 can be communicated with the internal circuit unit of the mobile phone through the mobile phone slot 2, and its connection relationship is as shown in Figure 2. The keyboard has the function of a mobile phone, and the keyboard can be used as an input device for the mobile phone in the mobile phone slot 2.

Referring to Fig. 1 and Fig. 3, when the second function key H2 is pressed, the contact of the first switch SW1 will switch to the normally open circuit state; the contact of the second switch SW2 will switch to the normally closed circuit state. That is, the common terminal point C1 of the first switch SW1 is connected with the normally open terminal point A1 (the common terminal point C1 of SW1 is not connected with the normally closed terminal point B1); the common terminal point C2 of the second switch SW2 is connected with the normally closed terminal point B2 (the public end point C2 of SW2 is not connected with the normally open end point A2), at this moment, the circuit control unit 12 of the keyboard body 1 is connected with the internal circuit unit of the computer 3, and its connection relationship is as shown in Figure 3, and the keyboard is used as the The input device, the circuit control unit 12 receives commands from the computer 3 or receives data from the scan matrix 11 .

Referring to Fig. 1 and Fig. 4, when the third function key H3 is pressed, the contact of the first switch SW1 is switched to the normally open circuit state; the contact of the second switch SW2 is also switched to the normally open circuit state. That is, the common terminal point C1 of the first switch SW1 is connected with the normally open terminal point A1 (the common terminal point C1 of SW1 is not connected with the normally closed terminal point B1); the common terminal point C2 of the second switch SW2 is connected with the normally open terminal point A2 ( The public terminal point C2 of SW2 is not connected with the normally closed terminal point B2), at this time, the internal circuit unit of the mobile phone is communicated with the internal circuit unit of the computer 3 through the mobile phone slot 2 and the communication interface transfer unit 13, as shown in Figure 4 , the mobile phone can transmit information through the communication interface adapter unit 12 of the keyboard body 1 and exchange data with the computer 3 .

To sum up, the utility model combines the functions of the mobile phone on the computer keyboard, thereby increasing the added value of the keyboard. It can be transmitted through the communication interface adapter unit 13, so that the computer and the mobile phone can exchange data; the keyboard can also be used as an input device for the mobile phone or the computer.

Claims (3)

1. A computer keyboard with a variety of signal input and output functions, including a keyboard body, the keyboard body includes a circuit control unit, a communication interface transfer unit and a keyboard scanning matrix, the circuit control unit is connected to the keyboard scanning matrix, and is characterized in that it also includes: The mobile phone slot is arranged on the keyboard body; it also includes a first switch, a second switch and a function key group for operating the first and second switch states, and the public terminal point of the first switch is connected to the mobile phone socket. slot, the common terminal point of the second switch is used for connecting to the computer, the first contact of the first switch and the second switch are connected to the communication interface conversion unit, and the second contact of the first switch and the second switch are connected to the circuit Control unit; the function key group is set on the keyboard body and communicated with the circuit control unit. 2. A computer keyboard with multiple signal input and output functions according to claim 1, characterized in that: said communication interface switching unit is a universal serial bus or standard RS-232. 3. A computer keyboard with multiple signal input and output functions according to claim 1, characterized in that: said function key group includes a first function key, a second function key and a third function key; When the function key is used, the circuit control unit is operated to connect the common terminal point of the first switch with its second contact and disconnect it from its first contact, and at the same time make the common terminal point of the second switch connected to its first contact connected to and disconnected from its second contact point; when the second function key is pressed, the circuit control unit is operated to make the common terminal point of the first switch connected to its first contact point and disconnected from its second contact point, and at the same time make the The common terminal point of the second switch is connected to its second contact point and disconnected from its first contact point; when the third function key is pressed, the circuit control unit is operated to make the common terminal point of the first switch connected to its second contact point. A contact is connected to and disconnected from its second contact, while the common terminal point of the second switch is connected to and disconnected from its first contact.

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