KR200182621Y1 - Combination calculator and computer keyboard - Google Patents

Abstract

The present invention relates to a computer keyboard combined with a calculator, in particular, a keyboard and a calculator mode selection key (6), a calculation result output selection key (7), a calculator integrated circuit (8), a keyboard and a calculator mode switching switch on a known keyboard. (9) When the computer is not used with the calculation result output switching switch 10 and the liquid crystal display 11 installed, the computer keyboard can be used as a calculator that can directly calculate a predetermined number or the like. When in use, the calculation function and numeric input function can be performed at the same time as in a normal computer, and the calculation result can be directly displayed on the LCD as well as the monitor if necessary, so that the usability and convenience of the keyboard can be displayed. Not only can it be greatly improved, but a separate calculator is needed when calculations are required while creating a document using an application. And not simply calculated without use will have to be used with the data necessary to create such documents.

Description

Combination calculator and computer keyboard}

The present invention relates to a computer keyboard combined with a calculator, and more particularly, a calculator function is added to a computer keyboard to perform a calculation function regardless of the computer operating system even when the computer is used. Of course, if necessary, the result can be displayed at the cursor position on the monitor, and when the computer is not in use, only the calculator function is performed using the power voltage supplied from the computer body to the keyboard and displayed on the LCD display installed in the keyboard. It is designed to greatly improve the convenience of the keyboard.

Conventional computer keyboards have various characters and numeric input keys and a predetermined number of special character input keys.

That is, the conventional computer keyboard is configured to input only letters, numbers, and special characters, and on the right side of the keyboard, numeric input keys are installed for convenient use when entering many numbers. The numeric input keys are configured to turn on / off the function as the numeric input keys by using the Nmber Lock button, but they do not have a calculator function.

In other words, a conventional computer keyboard does not basically have a calculation function, and when a predetermined number is to be calculated, a calculation program built in the computer main body or a separate calculator must be prepared and used for calculation. There is discomfort.

The present invention was devised to solve the above problems. When not using a computer, the present invention can be used as a calculator that can directly calculate a predetermined number on the keyboard using a power voltage applied from the computer body to the keyboard. In addition, if you are using a computer, you can perform the calculation function and numeric input function as in a normal computer at the same time, and the calculation result can be displayed on the liquid crystal display on the keyboard. You can improve the usability and convenience of the keyboard by displaying it directly. Also, if you need to calculate a document while writing a document using a certain program, you can easily calculate it without writing a separate calculator. Provides a computer keyboard that can be used as data It is an object.

The object of the present invention described above, a keyboard control unit is installed between the upper plate and the lower plate, a variety of letters and numbers input keys and a predetermined number of special character input keys are installed on a part of the left side of the top plate, a number of the upper right side of the top plate In a computer keyboard having a configuration in which the number input keys are arranged in groups and connected to the main board in the computer main body through signal lines and an interface unit,

A keyboard and a calculator mode selection key inside the keyboard; A calculation result output selection key for transmitting the calculation result to the current cursor position of the monitor via the computer main body for display; An integrated circuit for a calculator which calculates and outputs a predetermined control signal to a keyboard and a calculator mode changeover switch and a calculation result output changeover switch while calculating and outputting it on a liquid crystal display or a computer monitor when inputting various numbers and calculation formulas; Under the control of the integrated circuit for the calculator outputs different control signals in response to whether the keyboard and the calculator mode selection key is on or off, transmits various data and clock signals output from the keyboard control unit to the computer main body or the A keyboard and a calculator mode switch for transmitting the integrated circuit for the calculator; Under the control of the calculator integrated circuit outputting a different control signal in response to whether the calculation result output selection key is on or off, the current cursor position of the monitor and the result value calculated through the calculator integrated circuit are displayed. A calculation result output switching switch for selectively transmitting to; This can be achieved by additionally installing a liquid crystal display that displays the result calculated by the calculator integrated circuit as a number.

Therefore, when not using a computer, it can be used as a calculator that can directly calculate a predetermined number, etc. with a computer keyboard using the power supply voltage supplied from the computer main body. You can perform various character and number input functions at the same time as in a computer and a general computer, and the calculated results can be displayed by the liquid crystal display installed on the keyboard. It can be displayed directly, which greatly improves the usability and convenience of the keyboard.If you need to calculate a document while writing a document using a predetermined program, you can easily calculate it by using the keyboard itself without using a separate calculator. It can be used as data needed for creation.

1 is a perspective view of a computer keyboard combined with the present invention.

2 is a schematic block diagram of a personal computer and a keyboard of the present invention.

3 is a detailed block diagram of a keyboard of the present invention.

Explanation of symbols on main parts of drawing

1: top plate

2: lower plate

3: keyboard control unit

4: Various letters and numbers input key and special character input key

5: numeric input keys

6: Keyboard and calculator mode selection key

7: Calculation result output selection key

8: integrated circuit for calculator

9: Keyboard and Calculator Mode Switch

10: calculation result output switch

11: liquid crystal display

21: interface unit

22: main board

100: keyboard

200: computer body

300: monitor

1 is a perspective view of a computer keyboard of the present invention combined calculator, FIG. 2 is a schematic block diagram of the present invention keyboard and a computer, and FIG. 3 is a detailed block diagram of the present invention keyboard.

According to this, a keyboard control unit 3 is provided between the upper plate 1 and the lower plate 2, and various characters and numeric input keys and a predetermined number of special character input keys 4 are provided on a part of the left side of the upper plate 1. The upper surface of the upper plate 1 has a configuration in which several numeric input keys 5 are formed in a group, and the main board 22 in the computer main body 200 through the signal line and the interface unit 21 is installed. In the computer keyboard 100 connected with,

Outside and inside the keyboard 100, a keyboard and calculator mode selection key 6 for selecting any one of an original keyboard function and a calculator function;

A calculation result output selection key 7 for requesting to transmit the calculation result to the current cursor position of the monitor 300 through the computer main body 200 for display;

When there are inputs of various numbers and calculation formulas, they are calculated through a predetermined program and outputted on the liquid crystal display 11 or the computer monitor 300, and at the same time, the keyboard and calculator mode switching switch 9 and the calculation result output switching switch An integrated circuit for a calculator (8) for outputting a predetermined control signal to (10);

Various data and clocks outputted from the keyboard controller 3 under the control of the integrated circuit 8 for the calculator which outputs different control signals depending on whether the keyboard and the calculator mode selection key 6 are turned on or off. A keyboard and calculator mode switching switch 9 for transmitting a signal to the computer main body 200 or to a computer integrated circuit 8;

Result value calculated by the calculator integrated circuit 8 under control of the calculator integrated circuit 8 outputting a different control signal in response to whether the calculation result output selection key 7 is on or off. A calculation result output switching switch 10 for selectively transmitting the clock signal to the current cursor position of the monitor 300;

It is characterized in that the liquid crystal display 11 is installed on the upper end of one side of the upper plate (1) for displaying the result calculated by the calculator integrated circuit (8) as a number.

Referring to the operation of the keyboard of the present invention configured as described above are as follows.

First, the computer keyboard with a calculator according to the present invention is provided with a liquid crystal display 11 for displaying a calculation result on the upper part of the numeric input keys 5 installed in a group form on the right side of the keyboard to have a calculator function. On the one side and the upper portion of the numeric input key 5, a keyboard and a calculator mode selection key 6 for selecting any one of a keyboard function and a calculator function, and a calculation result as necessary. All keys required by a general calculator (ie, necessary to perform calculations through various equations), including a calculation result output selection key (7) for transmitting to the current cursor position of the monitor 300 for display through Keys) can be installed to enable character input, numeric input and calculator functions using the keyboard itself.

In addition, the inside of the keyboard calculates various numbers input through the keyboard control unit 3 according to a predetermined formula and outputs them on the liquid crystal display 11 or the computer monitor 300 and at the same time the keyboard and calculator mode. A computer integrated circuit (8) for outputting a predetermined control signal to the changeover switch (9) and the calculation result output changeover switch (10), and various data and clock signals outputted from the keyboard controller (3). The monitor 300 monitors the result value and the clock signal calculated through the keyboard and the calculator mode switching switch 9 and the calculator integrated circuit 8 which are transmitted to either the 200 or the calculator integrated circuit 8. By installing the calculation result output switching switch 10 for selectively transmitting to the current cursor position, the calculated result can be displayed on the liquid crystal display 11 and the computer can be used at the same time. In operation, the calculation result output selection key 7 may be operated to display the calculation result at the current cursor position of the computer monitor 300.

At this time, the integrated circuit 8 for the calculator outputs a 'high' signal to the control terminals of the keyboard and the calculator mode changeover switch 9 when the operating terminal of the keyboard and the calculator mode selection key 6 are connected to the power supply terminal. Various data and clock signals outputted from the keyboard control unit 3 are transmitted to the computer main body 200 side (i.e., to perform a general keyboard function), and an operation terminal of the keyboard and calculator mode selection key 6 Is connected to the ground terminal, and outputs a 'low' signal to the control terminal of the keyboard and calculator mode changeover switch 9 so that various data and clock signals output from the keyboard control unit 3 are output to the integrated circuit for the calculator (8). ) Allows it to be typed in itself (ie, allows the keyboard to function as a calculator).

In addition, the integrated circuit 8 for the calculator outputs a 'high' signal to the control terminal of the calculation result output switching switch 10 when the operation terminal of the calculation result output selection key 7 is connected to the power supply terminal, On the contrary, when connected to the ground terminal, a 'low' signal is output.

That is, when the user connects the movable terminal of the calculation result output selection key 7 to the power supply terminal, the calculator integrated circuit 8 outputs a 'high' signal to the control terminal of the calculation result output switching switch 10. Since the calculator integrated circuit 8 and the interface unit 21 in the main body are blocked by the calculation result output switching switch 10, the result value calculated by the calculator integrated circuit 8 is the liquid crystal display 11. Is outputted to the control terminal of the calculation result output switching switch 10 in the integrated circuit 8 of the calculator when the operating terminal of the calculation result output selection key 7 is connected to the ground terminal. Since the signal is outputted, the calculator integrated circuit 8 and the interface unit 21 in the main body are interconnected through the calculation result output switching switch 10 to calculate the result value calculated by the calculator integrated circuit 8. And clock Since the signal is transmitted to the current cursor position of the monitor 300 through the interface unit 21 and the main board 22 in the main body 200, the calculated value is displayed on the monitor 300 as well as the liquid crystal display 11. .

Therefore, the user of the computer is a calculator using a keyboard and calculator mode selection key (6) installed on the keyboard 100 without using a separate calculator when calculation is required while writing a document or the like using a predetermined program built in the computer. After selecting the mode and using the numeric input keys (5) for simple calculations, the calculation result output selection keys (7) can be manipulated appropriately to display the calculation results on the monitor (300) to be used as data for writing documents. It is.

On the other hand, all the computer body connected to the keyboard of the above configuration is configured to supply the power voltage on the keyboard 100 even if the power switch is 'off' in the state that the power cord is connected to the outlet, so that the keyboard 100 itself The calculator can continue to be used, but the calculation result cannot be displayed on the monitor 300 in such a state.

As described above, according to the present invention, a keyboard and calculator mode selection key, a calculation result output selection key, an integrated circuit for a calculator, a keyboard and calculator mode switching switch, and a calculation result output switching switch are additionally installed on an existing board. If you do not use a computer, you can use it as a calculator that can calculate a certain number directly with the computer keyboard.In addition, when using a computer, you can perform both a calculation function and a numeric input function like a normal computer. In addition, the calculated results can be displayed through a liquid crystal display on the keyboard and can be directly displayed at the cursor position of the monitor as needed, thereby greatly improving usability and convenience of the keyboard, and using a predetermined program. If you need to calculate while writing documents It not by a simple calculation without use is very useful designed such that you can use as the data necessary to create such documents.

Claims (1)

A keyboard control unit 3 is installed between the upper plate 1 and the lower plate 2, and various letters and numbers input keys and a predetermined number of special character input keys 4 are installed at a part of the left side of the upper plate 1. The upper right portion of the upper plate 1 has a configuration in which several numeric input keys 5 are formed in groups and connected to the main board 22 in the computer main body 200 through the signal line and the interface unit 21. In the computer keyboard 100, Outside and inside the keyboard 100, a keyboard and calculator mode selection key 6 for selecting any one of an original keyboard function and a calculator function; A calculation result output selection key 7 for requesting to transmit the calculation result to the current cursor position of the monitor 300 through the computer main body 200 for display; When there are inputs of various numbers and calculation formulas, they are calculated through a predetermined program and outputted on the liquid crystal display 11 or the computer monitor 300, and at the same time, the keyboard and calculator mode switching switch 9 and the calculation result output switching switch An integrated circuit for a calculator (8) for outputting a predetermined control signal to (10); Various data and clocks outputted from the keyboard controller 3 under the control of the integrated circuit 8 for the calculator which outputs different control signals depending on whether the keyboard and the calculator mode selection key 6 are turned on or off. A keyboard and calculator mode switching switch 9 for transmitting a signal to the computer main body 200 or to a computer integrated circuit 8; Result value calculated by the calculator integrated circuit 8 under control of the calculator integrated circuit 8 outputting a different control signal in response to whether the calculation result output selection key 7 is on or off. A calculation result output switching switch 10 for selectively transmitting the clock signal to the current cursor position of the monitor 300; And a liquid crystal display (11) installed at an upper end of one side of the upper plate (1) for displaying numerically the result calculated by the integrated circuit (8) for the calculator.