JPH0830392A - Pressure sensitive tablet input control system - Google Patents

Abstract

PURPOSE:To improve operability by reporting fixed coordinate data when an input device with integrated display provided with a high-resolution pressure sensitive tablet is continuously touched at the same position. CONSTITUTION:An input device 1 is composed of a pressure sensitive tablet 2, display 3, tablet control program 4 and input/output control part. The pressure sensitive tablet 2 is arranged while being overlapped on the display 3 and can visually show an input position. When the tablet 2 is pushed down, the tablet control program defines all the coordinate data within error range correction 8 as (a, b) corresponding to an error corrected value n set in advance with coordinate data (a, b)6 first reported on a tablet touch plane 7 as a center. By setting this error corrected value n so as to include the touch plane 7, the coordinate data become the fixed value when pushing the tablet down, and operability can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input control system for an input device having a pressure-sensitive tablet integrated with a display, and more particularly to a system for notifying coordinate data.

[0002]

2. Description of the Related Art As a technique for improving the operability of a conventional tablet, there is a pattern that requires touch input of two or more actions, such as a "touch panel control system" disclosed in Japanese Patent Laid-Open No. 5-66886. In some cases, the touch area after the second action is automatically expanded to enable accurate touch input operation.

[0003]

Since the above-mentioned conventional technique is a method of expanding the touch area, it cannot be applied except when the selection items are narrowed down.

Since a pressure-sensitive tablet that enables handwriting input with a pen, sketching, etc. is generally of high resolution, when the same tablet is used for input with a finger such as a touch panel, the area where the finger contacts the tablet is more than the resolution. However, there is a problem that the coordinate data notified from the tablet at a constant cycle does not have a constant value even if the touch screen continues to touch the same position.

Further, in the case of an operation which requires continuous touching at the same position, there is a problem that the deviation of the coordinate data becomes large and the same position is not recognized.

As a means for solving the above-mentioned problems, it is conceivable to change the pressure-sensitive tablet to a low-resolution tablet, but in this case, the device development cost will be extra, and pen input and finger input can be used properly. System cannot be built.

A first object of the present invention is to improve operability by notifying constant coordinate data when a high-resolution pressure-sensitive tablet is continuously touched at the same position.

A second object of the present invention is to improve operability by increasing the recognition rate of continuous touches at the same position on a high-resolution pressure-sensitive tablet.

A third object of the present invention is to enable the same input device to be used properly according to the input means.

[0010]

In order to achieve the above object, the coordinate data notified from the tablet is checked by the tablet control program, and if it is within the error range, it is converted into the same coordinate data as the previous time and the upper program (operating system) System, application program).

The check value of the error range can be designated by the host program according to the purpose of use.

[0012]

The coordinate data corresponding to the input means can be obtained by considering the contact area and the sliding width when the tablet is touched and setting the check value of the error range according to the contact area.

[0013]

Embodiments of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG.

In FIG. 1, the input device 1 comprises a pressure sensitive tablet 2, a display 3, a tablet control program 4, and an input / output control section. The pressure-sensitive tablet 2 is arranged so as to overlap the display 3, and the input position can be visually shown.

In FIG. 2, the tablet control program performs the following processing when detecting coordinate data from the tablet 2. When the tablet is pressed, the tablet contact surface 7
Of the coordinate data (a, b) 6 notified first, the coordinate data within the error range correction 8 are all set to (a, b) with the error correction value n set in advance. If the error correction value n is set to include the contact surface 7, the coordinate data when the tablet is pressed can be a constant value. Similarly, the recognition rate of continuous touch can be increased by adjusting the deviation of the coordinate data at the time of continuous touch according to the correction value and setting the same coordinate within the error range.

In FIG. 3, the tablet control program reads the coordinate data from the tablet (9) and checks whether the tablet is pressed (10).
It is possible to notify stable coordinate data by comparing with the coordinate data saved in (11) and replacing it with 13 coordinate data within the error range (12). If a value larger than (maximum coordinate value + error correction value) is given as the initial value of the coordinate data saved in 13, it is possible to notify the correct value when the button is first pressed. , Pen input designation area 15,
The finger input designation area 16 is set so that the operator can select it. The selected area is highlighted by reverse, color, etc. According to the designation, by changing the error correction value of the tablet control program such that the error range is large when the pen input is designated and the error range is small when the finger input is designated, the resolution can be changed by the operator's instruction.

[0017]

The input device having a pressure-sensitive tablet integrated with a display can notify coordinate data corresponding to the change of the input means such as a pen or a finger depending on the intended use, so that the same input device can be used for multiple purposes. Can be used.

[Brief description of drawings]

FIG. 1 shows a system configuration diagram of the present invention.

FIG. 2 shows an embodiment of the present invention.

FIG. 3 shows a processing flow of an embodiment of the present invention.

FIG. 4 shows an operation example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Input device, 2 ... Pressure sensitive tablet, 3 ... Display, 4 ... Tablet control program, 5 ... Input / output control part, 6 ... Coordinate data (a, b), 7 ... Tablet contact surface, 8 ... Error correction range, 9 to 14 ... Operation content, 15 ... Pen input designation area, 16 ... Finger input designation area.

Claims (1)

[Claims] 1. In an input device having a pressure-sensitive tablet integrated with a display, if the coordinate data notified from the tablet is within the error range designated in advance, all the coordinates are set to the same coordinate so that operability is improved. Input control method to improve.