JPH04626A - Coordinate input device - Google Patents

Abstract

PURPOSE:To stop the movement of a mouse and a cursor within a range of the upper and the lower limits in each direction of X and Y by providing a comparator for comparing the moving range of the upper and the lower limits in each direction of X and Y set to plural registers, and the present X and Y coordinate positions. CONSTITUTION:Relative moving amount information generated by a control part 5 is sent to the corresponding comparators 10-13, respectively, compared with a set value of a moving range of the upper and the lower limits in the X and Y axis directions set to the corresponding registers 6-9, respectively, and a comparing signal is sent out to a moving pulse control part 14. The control part 5 monitors the moving pulse control part 14, and in the case each comparing signal which is inputted does not exceed a set range, respectively, switch information is added to moving amount information X and Y, and sent out to a personal computer and a work station which are connected. Also, the moving pulse control part 14 validates a moving pulse X and a moving pulse Y through a gate circuit. In such a way, the movement of a mouse and a cursor is stopped within a set range.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coordinate input device for personal computers, workstations, and the like.

[Prior Art] A coordinate input device called a mouse (hereinafter also referred to as mouse) is used to move vertically and horizontally on a plane.
By pressing the switch provided there, CR
It is used as an input device for moving a mouse cursor on a display such as a computer, specifying a position on a personal computer or workstation, and inputting individual information.

FIG. 2 is a block diagram showing the configuration of a conventional coordinate input device, in which (1) is a movement pulse generator that generates a direction instruction signal and a movement pulse in the X-axis and Y-axis directions, respectively, by a movement operation; 2) is the movement counter
) is the movement counter Y in the Y-axis direction, (4) is the individual function switch, and (5) is the count value from the movement counter X (2) and movement counter Y (3), and from the individual function switch <4). Read the switch information and obtain the movement amount information
.

This is a control unit that generates Y and switch codes.

Next, the operation will be explained. When the mouse is moved, the movement panel generator (1) detects the amount of physical movement thereof and generates a direction indication signal and a movement pulse in each of the X-axis direction and the Y-axis direction. As a result, the movement counter X (2
) and the movement counter '1' (3) update the count value (initial value is 0) within an increase/decrease range of ±1.

On the other hand, the control unit (5) periodically reads the count value X and the count value Y from the movement counter X and Y (also the initial value is O),
Relative movement amount information X and Y is generated from the read count values X and Y.

The control unit (5) also encodes the switch information (○N10 FF) from the individual function switch (4). Then, switch information is added to the movement amount information Information is entered. When the operation is completed, the control section (5) outputs a counter reset signal to set the count values of the movement counter X (2) and movement counter Y (3) to 0, and prepares for the next movement operation.

[Problems to be Solved by the Invention] The conventional coordinate input device described above is configured as described above, and since the mouse cursor moves regardless of the setting range of the actual operation screen or window, the display range of the display If the mouse cursor is moved beyond , the mouse cursor disappears from the display screen. Therefore, in such a case, an operation is required to bring back the mouse cursor that has disappeared from the display screen to the display screen.

Also, the setting range of the actual operation screen or window may vary.
When entering beyond the display range of the display, there are problems such as the inability to move the cursor to the range beyond the display screen by operating the mouse itself, and the inability to set so-called block clipping.

This invention has been made to solve this problem, and even if a movement operation that exceeds the display range of the display or the set range of a predetermined operation screen or window is performed, the mouse cursor is always kept within the predetermined position on the display. The object is to obtain a coordinate input device that can be displayed and moved within a range.

[Means for Solving the Problems] A coordinate input device according to the present invention includes a register for setting a movement range of a mouse cursor according to a display range of a display, an actual operation screen, or a window setting;
A comparator is provided to compare the movement range set in this register with the current coordinate value, and if the amount of movement caused by the movement operation exceeds the movement range set in the register, the mouse cursor movement will be within the set range. It was decided to stop at.

[Function] In the coordinate input device of the present invention, even if a movement operation is performed that exceeds the set movement range, the movement of the mouse cursor can be stopped within the set range. This eliminates the need to bring the mouse cursor back to the display screen, making it possible to set block clipping using the mouse itself.

[Embodiment] Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. In Fig. 0, (1) is a movement pulse generator that generates a direction indication signal and a movement pulse in the X-axis and Y-axis directions, respectively, by a movement operation; 2) is a movement counter X that counts the direction instruction signal in the X-axis direction from the movement pulse generator (1) and its movement pulse, and increases or decreases by ±1, and (3) is a movement counter Y.
Movement counter Y in the axial direction, (4) is an individual function switch, (5) is a count value from movement counter X (2) and movement counter Y (3), and an individual function switch (4).
); (6) is a control unit that reads switch information from ) and generates movement amount information X, Y and switch code; (6) is a lower limit register X that sets the lower limit movement range in the Similarly, 7) is an upper limit register for setting the upper limit movement range in the X-axis direction, and (8) and (9) are a lower limit register Y and an upper limit register Y in the Y-axis direction.

In addition, (10) is a lower limit comparator X that compares the accumulated value (current coordinate value) held in the control unit (5) and the set value set in the lower limit register X (6), and (11) is similarly Upper limit comparator X, (12>, (
13) is the lower limit comparator Y and upper limit comparator Y, (14) is the lower limit comparator This is a movement pulse control section that invalidates movement pulses X and Y from the movement pulse generation section (1) using a comparison signal.

Next, the operation will be explained. First, the moving range of the mouse cursor is the display range of the display, the actual operation screen,
Alternatively, the personal computer or workstation can input the lower limit register X (6), upper limit register Set the setting range.

Then, by moving the mouse, the moving panel generating section (1
) detects the amount of physical movement from the outside and generates direction indication signals and movement pulses in the X-axis direction and the Y-axis direction, respectively. As a result, movement counter X (2) and movement counter Y (3) can change the count value (
The initial value is 0) and is updated.

On the other hand, the control unit (5) periodically reads the count value X and the count value Y from the movement counter X and Y (also the initial value is 0),
Relative movement amount information X and Y is generated from the read count values X and Y.

The control unit (5) also encodes switch information (ONloFF) from the individual function switch (4>).

The relative movement amount information generated by the control unit (5) is
are sent to corresponding comparators (10) to (13),
The comparators (10) to (13) compare the upper and lower limit movement range settings in the X and Y axis directions set in the corresponding registers (6) to (9), respectively, and use the comparison signals to control the movement pulse. The data is sent to the section (14). The control unit (5) monitors the movement pulse control unit (14), and if each input comparison signal does not exceed the set range, the movement amount information
And switch information is added to Y and sent to the connected personal computer or workstation. Furthermore, the moving puzzle control section (14) receives a moving pulse X via a gate circuit.

Enable movement pulse Y.

Conversely, if the comparison signals from each of the comparators (10) to (13) exceed the set value, the control unit <
5) reads the set value set in the register (lower limit register X (6) in this case) corresponding to the comparator (for example, lower limit comparator The lower limit movement in the X-axis direction is set as this setting value, and movement amount information X and Y are generated again,
and switch information is added to Y and sent to the connected personal computer or workstation. The movement pulse control section (14) invalidates the movement pulses X and Y via the gate circuit.

Thereafter, the control section (5) outputs a counter reset signal that sets the count values of the movement counter X (2) and the movement counter Y (3) to 0 in preparation for the next movement operation.

Further, if the movement pulse X or Y is invalid at the time when the movement pulse control section (14) detects the reset signal from the control section (5), it becomes valid via the gate circuit.

[Effects of the Invention] As described above, the present invention allows the mouse itself to control the movement of the mouse cursor in accordance with the display range of the display, the actual operation screen, or the setting range of the window. Furthermore, if the movement range of the mouse cursor is considered as one area, there are effects such as being able to set a block-clipping area with this mouse.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of a conventional device. In the figure, (1) is a moving pulse generator, <2) is a moving counter X, (3) is a moving counter Y, (4) is an individual function switch, (5) is a control unit, (6) is a lower limit register X,
(7) is the upper limit register X, (8) is the lower limit register Y, (
9) is the upper limit register Y, (10) is the lower limit comparator X, (1
1) is the upper limit comparator X, (12) is the lower limit comparator Y, (13
) is an upper limit comparator Y, and (14) is a moving pulse control section. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] In a coordinate input device that moves a cursor on a display screen synchronously by moving it on an X, Y coordinate plane, according to the display range on the display screen and the settings of the actual operation screen or window, X on the cursor display screen
, multiple registers that set the upper and lower limit movement ranges in each direction, and a comparison that compares the upper and lower limit movement ranges in each of the X and Y directions set in the multiple registers with the current X and Y coordinate positions. Even if the amount of vertical movement in each of the X and Y directions caused by the movement operation exceeds the range set in each of the above registers, the movement range of the mouse cursor will be limited to the X and Y directions.
A coordinate input device characterized by being able to stop within upper and lower limit ranges in each direction.