JPS60196840A - Graphic input device - Google Patents

Abstract

PURPOSE:To improve the moving speed and accuracy of a designated position by determining the moving time of the designated position on the basis of a contact time of an operation rod with peripheral wall sides and determining the moving direction and the moving speed on the basis of contact positions and contact pressure. CONSTITUTION:The operation rod 5 can be optionally slid in the inwall of an outer box 6, and when the operation rod 5 contacts the inwall 4', a pressure detecting part 4 detects the contact pressure and inputs an output proportional to the contact pressure to an A/D converter 7, which supplies a digital signal output to a CRT display. The digital signal indicates the moving speed of the desigmated position, and when the contact is continued, the operation rod 5 may be moved for the contact period. If the contact pressure is increased, the moving speed is increased in stages. To move the operation rod 5 to a far position, the operation rod 5 is brought into contact with the inwall under strong contact pressure at first to be moved at a high speed and the contact pressure is reduced near the end point to reduce the moving speed. Consequently, a stop position can be accurately determined. The moving direction is determined by the pressure ratio of the rectangular inwalls.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a graphic input device for inputting graphics to a CRT display tcrIL.

(Prior Art) Conventionally, this type of graphic input device includes a tablet and a digital stick.

The tablet consists of a cursor for position indication and a position detection plate for detecting the position of the cursor. Therefore, highly accurate position detection is possible, but it has the drawback that the detection mechanism is plate-shaped and provides a panoramic view of the wide work area.

The magnifying stick consists of a mechanism that detects the direction in which a stick (operating rod) such as a switch is pressed and a stick on the four sides of the box. Disco istics have features that allow them to be operated in very narrow working areas, but they have problems with accuracy. That is, when moving the indicated position, the switch is pressed down in all directions of movement and the time it is in the ON state is counted, and the movement is -1- according to the time, so the movement is at a constant speed and the distance moved at one time is This is a constant positional movement. This large round movement is also at a constant speed, and if the speed is increased and the distance traveled at a time is increased, local positioning becomes difficult.

(Object of the Invention) The object of the present invention is to determine the moving time of the indicated position based on the contact time between the operating rod and the wall surface of Shima, and to determine the moving direction and moving speed based on the contact position and contact pressure. Graphic input that can be used in narrow work areas and allows precise positioning with variable speed movement of the indicated position! ! The aim is to provide 1k.

(Structure of the Invention) The device of the present invention includes an operating rod that slides within an area f′ surrounded by two sets of two mutually orthogonal planes, and a
contact pressure value detection means; and analog-to-digital conversion means for converting the analog signal from the contact pressure direct detection means into a corresponding digital signal and outputting it.

(Embodiment) An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1(a) is a plan view showing an embodiment of the present invention.
FIG. 1(b) is a sectional view of this embodiment. FIG. 2 is an electrical block diagram of this embodiment.

The graphic input am shown in FIG. The pressure detecting section 1 is comprised of pressure detecting sections 1 to 4, each of which detects the suppression to 4'. The A/D conversion section is composed of A/D converters 11 to 14 that convert analog signals outputted from the pressure detection sections 1 to 4 into corresponding digital signals and output them.

The operating rod 5 is connected to an outer box 6 that is closed by inner walls 1' to 4'.
It is possible to slide freely within the area. When the operating rod 5 comes into contact with the inner wall 4', for example, the pressure detection section 4 detects the contact pressure between the operating rod 5 and the inner wall 4', and performs A/D conversion of the output tA/D conversion W67 proportional to the contact pressure between the operating rod 5 and the inner wall 4'. The A/D converter 14 converts the input analog signal into a corresponding digital signal and supplies it to the digital display device.

This digital signal indicates the speed of movement of the indicated position, and if such contact is continued, the position will move for the contact time at the speed indicated by this digital signal.

When the contact pressure is increased to 1, the speed can be increased in steps. To move to a far place, first, the operating rod 5 is brought into contact with the inner wall with strong contact pressure and moved at high speed, and near the end point, the contact insect is weakened and the speed is increased to t%, and the stopping position is moved to the top. It is possible to determine the

The direction of movement is approximately determined by the pressure ratio on the mutually opposing inner walls. For example, the operating rod 5 is in rc contact with the inner walls 4' and 1', and the contact pressure against the inner wall 4' is P'<a173 wall 1
Let the contact pressure against ' be P'1.
Although it may depend to some extent on the conversion characteristics of the movement direction, if the angle between the movement direction and the inner wall 1' is δ and n, the force direction can be made variable by changing the voltage-force ratio given by the following equation.

, Yutan-1 Yokot 2 Mam1 Although not shown in the drawings, a switch indicating the start and end of operation and a plurality of other switches are added to the operation rod 5,
You can also easily perform various operations with one hand.

(Effects of the Invention) The present invention enables accurate control in narrow working areas and variable speed control by detecting the contact time, contact position, and contact pressure between the operating rod and the wall surrounding it. You can enjoy the effect of being able to move the indicated position of the T-display device and easily draw the desired figure.

[Brief explanation of drawings]

FIG. 1(a) is a plan view of an embodiment of the invention, FIG. 1(b)
) is its sectional view, and Figure 1g2 is a block diagram of Figure 1. 1 to 4... Pressure detection section, 1' to 4'...
・Inner wall, 5...operation rod, 6...outer box,
7...A/D conversion section, 11-14...
A/D converter.

Claims (1)

[Claims] An operating rod that slides within an area surrounded by two sets of two planes directly facing each other, and an operation rod that is provided corresponding to each of the four planes, and each of the four planes. four contact pressure value detection means for detecting the contact pressure value between the contact pressure value detection means and the operating rod; and analog-to-digital conversion means for converting the analog signal from the contact pressure value detection means into a corresponding digital signal and outputting it. A graphic input device comprising: