JPH01116818A - Cursor signal input device - Google Patents

Abstract

PURPOSE:To prevent the reduction of the number of degrees of freedom of an external input terminal by directly inputting the cursor key signal of a keyboard to a keyboard interface and fetching a signal indicating the operation direction from a mouse to convert this signal to the cursor key signal and inputting this signal to the keyboard interface. CONSTITUTION:The cursor key signal of the keyboard is fetched and this signal is directly inputted to the keyboard interface of an equipment main body provided with a picture display device, and the signal indicating the operation direction from the mouse is fetched and converted to the cursor key signal and inputted to the keyboard, interface of the equipment main body. For example, the signal from a mouse 15 is inputted to a keyboard interface 18 of the equipment main body 11 through a cursor signal input device 13 together with the key signal from a keyboard 14. Consequently, it is unnecessary to use an external interface 20 for mouse connection, and the number of degrees of freedom of the external input terminal is not reduced because the external interface 20 is freely used for connection to an external equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a cursor signal input device for equipment equipped with a screen display, such as a personal computer.

[Prior Art] In personal computers and the like, it is common to move a cursor displayed on a screen forward, backward, left, right, or diagonally by operating a cursor key provided on a keyboard.

Recently, there are also devices that allow graphic input while looking at the display screen, and some of these devices use a directional indicator called a mouse to move the cursor on the screen.

By the way, when trying to realize input from a mouse in a personal computer that only has a keyboard interface as an input interface, conventionally, as shown in FIG. The terminal was used to input a signal from the mouse 4 via an interface port 6 built into the board rack 5.

[Problems to be solved by the invention] However, in devices that use external input terminals in this way, there is a problem that the terminal is exclusively used and cannot be used for input from other devices, which limits the degree of freedom. there were.

SUMMARY OF THE INVENTION Therefore, the present invention provides a cursor signal input Ha that allows a mouse to be added using a keyboard interface, and therefore does not pose a risk of impairing the degree of freedom of external input terminals.

[Means for Solving the Problems] The present invention captures cursor key signals on a keyboard, inputs the signals directly to a keyboard interface of a device body equipped with a screen display, and also inputs a signal indicating the direction of operation from a mouse. It takes in the data, converts it to a cursor key signal, and inputs it to the keyboard interface of the device itself.

[Function] In the present invention having such a configuration, cursor key signals from the keyboard are inputted as they are to the keyboard interface of the main body of the device, and signals from the mouse are converted to cursor signals and input to the keyboard interface of the main body of the device. Therefore, the keyboard interface on the device itself can be used as both a keyboard and a mouse. In other words, there is no need to use an external input terminal.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 11 denotes a device body such as a personal computer equipped with a CRT display 12 as a screen display. An output terminal of a cursor signal input device 13 according to the present invention is connected to a terminal connected to the keyboard interface of this device main body 11.

A keyboard 14 provided with cursor keys and a mouse 15 are connected to input terminals of the cursor signal input device 13, respectively.

The device main body 11 and the cursor signal input device 13 are
It is configured as shown in the figure. That is, the device main body 11 is provided with a microprocessor 16 constituting a control unit main body, and a memory 17, a keyboard interface 18, a CRT interface 19, and an external interface 20 are connected to the microprocessor 16, respectively.

The keyboard interface 18 is connected to the cursor signal input device 13, and the CRT interface 19 is connected to the CRT display 12.

Further, external equipment connected to an external input terminal is connected to the external interface 20.

The cursor signal input device 13 is provided with a microprocessor 21 constituting a main body of the control section, and I10 ports 22, 23 and 24 are connected to the microprocessor 21, respectively. The keyboard 14 is connected to the 110 boat 22, and the mouse 15 is connected to the I10 boat 23. Also, the I10 boat 2
4 is a keyboard interface 1 of the device main body 11;
8 is connected.

The cursor signal input device [13 microprocessor 2
1, as shown in FIG.
The keyboard interface 1 of the device body 11 via
I am trying to have it input to 8. Therefore, the key signals of the cursor keys are also input to the main body 11 of the device as they are.

Further, a signal VA indicating the direction of operation from the mouse 15;
When VB, HA, and Ha are input, the signals are converted into cursor key signals and sent to the device body 11 via the I10 boat 24.
The input information is input to the keyboard interface 18 of the computer. In this case, the signals VA and v8 are signals that instruct the horizontal movement of the cursor. As shown in FIG. 4(a), when the signal @vA precedes the signal v8, the cursor signal becomes "→", As shown in (b) of the figure, when the signal VB precedes the signal VA, the cursor signal becomes "←". Further, the signals HA and H8 are signals that instruct the vertical movement of the cursor, and as shown in FIG. 4(C), when the signal HA precedes the signal H8, the cursor signal becomes "↑"; As shown in (d), signal H8 is signal @HA
When it precedes, the cursor signal becomes "↓". Note that diagonal movement is possible by combinations of the signals HA and Va, the signals He and VA, the signals HA and Ve, and the signals He and Va.

In the Honjitsu tJ sake example with such a configuration, not only key signals from the keyboard 14 but also signals from the mouse 15 are commonly input to the keyboard interface 18 of the device main body 11 via the cursor signal input device 13. , there is no need to use the external interface 20 for mouse connection. Therefore, the external interface 20 can be freely used for connection with external equipment, so the degree of freedom of the external input terminal is not impaired.

And when the cursor keys of the keyboard 14 or the mouse 15 are operated, the cursor signal input device f
Since a cursor signal is input to the keyboard interface 18 from 135 to 135, the microprocessor 16 of the device main body 11 inputs the cursor signal to the CRT interface 19 based only on the cursor signal from the keyboard interface 18.
The CRT display 12 can be controlled via the cursor t11 to move the cursor.

Further, the cursor signal input device 13 is connected to the microprocessor 2.
1 and I10 ports 22, 23, and 24, there is no need for a large device such as a board rack, and it can be compactly packed into a small case.

In the above embodiment, a CRT display is used as the screen display, but the present invention is not limited to this, and a liquid crystal display or a plasma display may be used.

[Effects of the Invention] As detailed above, according to the present invention, a cursor signal input device is provided in which a mouse can be added using a keyboard interface, and there is no risk of impairing the degree of freedom of external input terminals. It is possible.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention. FIG. 1 is a perspective view showing the external appearance, FIG. 2 is a block diagram showing the circuit configuration, and FIG. 3 shows the processing of the cursor signal input device. FIG. 4 is a timing waveform diagram for explaining the relationship between a signal indicating directionality from a mouse and a cursor signal, and FIG. 5 is a perspective view showing a conventional example. 11...Device body, 12...CRT display,
13... Cursor signal input device, 14... Keyboard, 15... Mouse, 21... Microphone 0 processor. Applicant's representative Patent attorney Takehiko Suzue No. 1 Zuso'3rIJ (a) (b) (C)
(d) Happy 4th figure inn 5th figure

Claims (1)

[Claims] The cursor key signals on the keyboard are captured and the signals are directly input into the keyboard interface of the main unit of the device equipped with a screen display, and the signals indicating the direction of operation are captured from the mouse and converted into cursor key signals. A cursor signal input device characterized by inputting to a keyboard interface of the main body.