JPS60251424A - Resolution control system of mouse type input device - Google Patents

Abstract

PURPOSE:To move a cursor in each dot easily and to attain approximate position setting by outputting a value obtained by multiplying a moving distance by a factor selected from the moving distance of a mouse type input device which is obtained within a fixed period as a mouse moving distance. CONSTITUTION:A CPU3 moves a cursor on the screen of a display 8 on the basis of the moving distance and direction of the mouse type input device. A mouse control part 4 is constituted of a microprocessor 5, an I/O port 6, an input port 7 and a memory. When the mouse type input device moves in the positive X direction, an X+ pulse is generated at first and then an X- pulse is generated. The mouse control part 4 counts up the pulses when the mouse is moved, and when the counted value of a timer reaches a prescribed value, finds out a factor from the real moving distance. Plural factors are set up and the factors are increased in accordance with the increase of the moving distance. The value obtained by multiplying the real moving distance by the factor is outputted as the mouse moving distance and the mouse moving distance and its direction are informed to the CPU3.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a mouse-type input device in which a coefficient applied to the amount of movement of the mouse-type input device is changed according to the movement speed of the mouse-type input device. This relates to a resolution control method.

[Prior art and problems]

FIG. 4 is a diagram for explaining the relationship between movement of a conventional mouse type input device and movement of a cursor on a display screen. In FIG. 4, numeral 1 indicates a display screen, and numeral 2 indicates a mouse type input device. In the prior art, when the mouse input device 2 moves by ΔP, the cursor on the display screen moves by ΔP', and the ratio of ΔP to 8P' is always constant. Normally, it is said that a ratio of 1:2 between the movement of a mouse-type input device and the movement of a cursor is good. One dot on a display screen is approximately 0.3n, but the resolution of commercially available mouse input devices is 0.3n.
Therefore, even if the operator wanted to move the cursor by about one dot on the display screen, it was difficult to operate the mouse. It is also conceivable to use a switch on the mouse-type input device to change the ratio, that is, the coefficient, but this method has the drawback that the operation becomes complicated.

[Purpose of the invention]

The present invention is based on the above considerations, and the present invention reduces the amount of cursor movement when the operator desires to specify a detailed position in a mouse-type input device, and decreases the amount of cursor movement when the operator desires to specify a general position. The object of the present invention is to provide a resolution control method for a mouse-type input device that can improve operability by increasing the size of the mouse.

[Means to solve the problem]

Therefore, the resolution control method for a mouse-type input device of the present invention is such that, in a system including a central processing unit, a mouse control section, and a mouse-type input device, the mouse control section controls the resolution of the mouse-type input device. Calculates the actual amount of mouse movement within a certain period of time based on the signal, selects a coefficient based on the actual amount of mouse movement, and outputs the product of the actual mouse movement amount multiplied by the selected coefficient as the amount of mouse movement. It is characterized in that it is configured to.

[Embodiments of the invention] Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 is a diagram showing the relationship between the movement of the mouse type input device and the movement of the cursor on the display screen in the present invention, and FIG.
The figure is a block diagram of one embodiment of the present invention, and FIG. 3 is a flowchart showing the processing performed by the mouse control section of FIG. 2.

As shown in FIG. 1, when the time required for the mouse type input device 2 to move the distance ΔP is short, the cursor movement distance on the display screen is ΔP3', and when the time required to move the distance ΔP is longer than this, The distance the cursor moves on the display screen is ΔP2′, and the distance ΔP
If the time required to move the cursor is even longer, the distance the cursor moves on the display screen becomes ΔP,'.

FIG. 2 is a block diagram of one embodiment of the present invention.

In FIG. 2, 3 is a central processing unit, 4 is a mouse control unit, 5 is a microprocessor, 6 is an input/output port, 7 is an input port, and 8 is a display. The mouse control unit 4 receives pulses from the mouse type input device 2 and reports the moving distance and direction of the mouse type input device to the central processing unit 3. The central processing unit 3 moves the cursor on the screen of the display 7 based on the moving distance and direction of the mouse type input device. The mouse control unit 4 is composed of a microprocessor 5, an input/output capotro, an input port door, and a memory (not shown). The mouse input device is in the positive X direction (based on the mouse input device)
When moving in the negative X direction, an X+ pulse is generated first, then an X- pulse, and when moving in the negative X direction, an X- pulse is generated first, then an X+ pulse. When moving in the positive Y direction, a Y+ pulse is generated first and then a Y- pulse, and when moving in a negative Y direction, a Y- pulse is generated first and then a Y- pulse. A pulse of Y+ is generated.

FIG. 3 is a flowchart for explaining the processing performed by the mouse control section 4. The mouse control unit 4 performs the following processing.

■ Start the timer.

■ Check to see if the mouse has moved. If Yes, process (2) is performed, and if No, process (2) is performed.

■ Count pulses. In addition, as a counter,
There are a +X direction counter, a -X direction counter, a +Y direction counter, a -Y direction counter, etc.

■ Check whether the timer count value has reached a predetermined value. When the answer is No, the process returns to the process ``■'', and when the answer is ``Yes'', the process ``■'' is performed.

■ Calculate the coefficient from the actual moving distance ΔP of the mouse input device. A plurality of coefficients are set and selected according to ΔP. The larger ΔP, the larger the coefficient.

(2) Multiplying the actual moving distance ΔP by a coefficient is the amount of mouse movement, and report this mouse movement amount and direction to the central processing unit.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, it becomes easy to move the cursor in units of one doso, and it is also possible to quickly set the general position.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating the relationship between the movement of a mouse-type input device and the movement of a cursor on a display screen in the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. FIG. 4 is a flowchart showing the processing performed by the mouse control unit of FIG. 1-display screen, 2-mouse type input device, 3-central processing unit, 4-mouse controller, 5-microprocessor, 6-human output port, 7-human power port, 8-display. Patent Applicant: Usatsuk Electronic Industry Co., Ltd. Representative Patent Attorney: Kyo Tani

Claims (1)

[Claims] In a system comprising a central processing unit, a mouse control unit, and a mouse-type input device, the mouse control unit measures the actual amount of mouse movement within a certain period of time based on a signal from the mouse-type input device; A mouse-type human-powered device, characterized in that it is configured to select a coefficient based on the actual mouse movement amount, and output a result obtained by multiplying the actual mouse movement amount by the selected coefficient as the mouse movement amount. Resolution control method