JPS61175813A - coordinate input device - Google Patents

Abstract

PURPOSE:To improve the use sense of a user by comparing a moving extent of a mouse, and switching automatically a movement coefficient of a cursor without operating a switch. CONSTITUTION:A timer 3 applies an interruption to a processor 5 at every prescribed time. The processor 5 receives it, writes it in DELTAX12 and DELTAY13, and sends those values to a comparing circuit 4. The circuit 4 compares these values with a value of a THV2. If both DELTAX12 and DELTAY13 are smaller than the THV2, the processor 5 writes that which removed DELTAX12 and DELTAY13 by an SA14, in a DX10 and a DY11. Namely, DX=DELTAX/SA, and DY=DELTAY/SA. If one of them is larger than or equal to the THV2, DX=DELTAX/SB, and DY=DELTAY/SB. Next, the DX10 and the DY11 are added to a CX8 and a CY9, so that CX=CX+DX, and CY=CY+DY. In this state, a command is given to a display device 6 so that a cursor is displayed on a CRT7 in accordance with a value of the CX8 and CY9.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to coordinate input devices for personal computers, graphic displays, bitmap displays, and the like.

Conventional technology Generally, when inputting coordinate data of a display position to a cursor using a coordinate input device such as a mouse or a track ball, in order to move the cursor over a long distance on the display screen, a large work area must be secured and coordinate input must be performed. Move the device significantly (for a mouse) or repeatedly move the coordinate input device several times (for a mouse).

In the case of a track ball) method was used.

Problems to be Solved by the Invention The present invention eliminates these conventional drawbacks.
Moreover, the present invention provides an excellent coordinate input device that can change the ratio of the amount of movement of the cursor (cursor movement coefficient) to the displacement data of the coordinate input device using natural human movements without requiring any switch operations.

Means for Solving the Problems The coordinate input device of the present invention includes a coordinate input device for indicating a cursor display position, a storage device for storing a threshold value for switching a display cursor movement coefficient, and a coordinate input device for measuring a unit time. This coordinate input device includes a time measurement device for the coordinate input device, and a comparison device that compares coordinate displacement data per unit time from the coordinate input device with the threshold value.

Even when moving the display cursor over a long distance on the screen, the cursor movement coefficient can be changed by quickly operating the coordinate input device, and the cursor can be moved much faster without the need for switch operations. This takes advantage of the natural movement of humans, allowing them to operate the coordinate input device more quickly when they want to move.

Embodiment FIG. 1 shows an embodiment of the present invention. In Figure 1, 1
1 is a coordinate input device mouse, 2 is a threshold storage register (THV) that stores a threshold value for switching the ratio of the display cursor movement amount to the displacement data of the mouse, 3 is a timer for measuring a certain period of time, and 4 is 1 Mouse displacement data and 2
A comparison circuit that compares the values of the threshold storage registers, and 6 a processing device. A display device 6 displays a cursor on the screen of a cathode ray tube (CRT) 7 in accordance with instructions from a processing circuit 6. Numerals 8 to 16 are random access memories, and numerals 8 and 9 are CAN X coordinate storage registers (CX) for storing the X-Y coordinates of the cursor display position.

This is a cursor Y coordinate storage register (cy).

10.11 is an X-direction movement amount storage register (DX) that stores the amount of movement of the display cursor on the screen.

This is a Y-direction movement amount storage register (DY). 12°13
are the mouse X-direction movement amount storage register (Δx) and the mouse Y-direction movement amount storage register (Δx), which store the amount of mouse movement.
Y). 14 and 16 are registers that store the ratio of the cursor movement amount to the mouse movement amount, and are 14 cursor movement coefficient register (SA) and 1s cursor movement coefficient register (SB).

The operation of the coordinate input device with automatic speed switching function of this embodiment configured as described above will be explained below.

The processing means shown in FIG. 2 will be explained.

(2) The timer 3 interrupts the processing device 5 at regular intervals.

■ The processing device 6 accepts the interrupt and converts the mouse displacement data into Δx12. Write to ΔY13.

■ The processing device 6 has Δx12. Comparison circuit 4 compares the value of ΔY13
send to

■ Comparison circuit 4 is the value of ΔX12 and the value of THV2.

The value of ΔY13 and the value of THV2 are compared respectively.

■ If Δx12. If both ΔY13 are smaller than KT HV 2.1°, the processing device 6 uses Δx12. ΔY13 to 5A
Divided by 14, L7'C is also written in (Dt"DXl 0. DYl 1, that is, ΔX(THV?) ΔY(If THV, DX,=ΔX/5A DY=ΔY/SA.

■ If ΔX12. One of ΔY13 is THV
If it is greater than or equal to 2, the processing device 6 processes Δx12. ΔY
13 divided by 5B16 is written to DXlo and DYll. In other words, Δx>THV Ifc is ΔY>T
For HV, DX=ΔX/SB DY=ΔY/SB.

■ Processing bag f51dcXa, CY9K, DXlo.

Add DYll. That is, CX=CX+DX CY=CY+DY shall be.

■ The processing device 5 displays CX8. Instructs to display the cursor on the CRTT according to the value of CY9.

As described above, according to this embodiment, by comparing the amount of mouse movement with a certain threshold value, the cursor movement coefficient can be automatically switched without operating a switch or the like.

In the above embodiment, the one-coordinate input device is a mouse, but the one-coordinate input device may also be a track pole. Further, the threshold value storage register 2 may be provided with the same function using a random access memory. It goes without saying that the comparison circuit 4 may have the same function realized by the processing device 6.

Effects of the Invention The coordinate input device with automatic cursor movement coefficient switching function of the present invention allows the display cursor to be moved largely on the display screen without relying on switch operations etc. by providing the coordinate input device with threshold storage means and comparison means. It is possible to automatically switch the movement coefficient of the display cursor by taking advantage of the natural human movement of moving the coordinate input device quickly.
The practical effect of improving the usability for users is significant.

[Brief explanation of the drawing]

2 are flowcharts showing the processing procedure in FIG. 1. 2... Threshold storage means, 4... Comparison circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person
figure

Claims (1)

[Claims] coordinate input means for specifying a cursor display position of the display device; threshold storage means for storing a threshold value for switching a movement coefficient of the display cursor with respect to the coordinate displacement data from the coordinate input means; and a threshold value storage means for measuring a unit time. comprising a time measurement means and a comparison means for comparing the coordinate displacement data from the coordinate input means with the threshold value, when the coordinate displacement data per unit time from the coordinate input device exceeds the threshold value; A coordinate input device capable of automatically switching a ratio of a display cursor movement amount to displacement data from the coordinate input means.