JPH09311746A - Information processor having pad-type pointing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid the misoperation of a tap function in a pad-type pointing device. SOLUTION: Information 6 for invalidating a tap operation in a pad part 4 is inputted from a keyboard 1 to a system part 2. When the system part 2 recognizes information, it outputs a corresponding command 7 to a decoding circuit 3. The decoding circuit 3 decodes the command 7 and outputs a signal 8 for invalidating the tap function to an AND gate 16. In the AND gate 16, an AND gate condition is not realized by the signal even if a tapping signal 9 is inputted from the pad part 4, and the tapping signal 9 is not inputted to the system part 2 in accordance with the result.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus having a pad type pointing device.

[0002]

2. Description of the Related Art In recent years, a pad type pointing device (hereinafter, referred to as pad PD) has been increasingly used mainly in a personal computer (hereinafter referred to as PC). The pad type PD is a PC keyboard provided with a flat surface of about 3 × 4 cm on the extension board surface, and a cursor on the PC screen can be moved by tracing with a finger. Such a pad type PD has a function similar to that of a mouse, but does not require a separate plane line-connected to the PC body like a mouse, and is therefore suitable for a PC that may be used as a portable device. Is.

Many conventional information processing apparatuses having this type of pad type PD have a function compatible with a mouse as described in, for example, Japanese Patent Laid-Open No. 59-200336, and coordinate input means. And two left and right switch input means. Then, the tap function for fixing the cursor position is the logical sum of the left switch of the two switches provided in the PD, and the tap function is always "valid", and the pad surface is only lightly touched. To work in.

[0004]

This conventional pad type P
In the information processing device having D, the tap function works only by lightly touching the pad surface, and thus there is a high possibility that the user may make a mistaken operation, but the tap function is always “effective”. Since there are not enough methods to avoid malfunctions, etc., in order to avoid malfunctions etc., there is no other way than the user himself to pay attention to the operation when using the PD, and be careful. However, there is a problem that an erroneous operation due to the tap function may not be completely avoided.

It is an object of the present invention to provide an information processing apparatus having a pad type PD capable of avoiding an erroneous operation due to the tap function by providing means for switching the tap function to "invalid" according to the user's intention.

[0006]

According to the present invention, when the user decides that he / she does not want to use the tap function, the user himself / herself switches the tap function between valid and invalid by inputting through a keyboard or the like. It can be switched to "invalid" by input from the means. This allows PD
It is possible to avoid erroneous operation due to the tap function in.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention, P
In addition to the D section 13, the system section 2 and the keyboard 6, the decoding circuit 3 and the AND gate 1 added by the present invention.
6, an OR gate 17.

The PD section 13 includes a pad section 4 and a left switch 5
And a right switch 15. The pad section 4 is a plane of about 3 × 4 cm provided on the extension board surface of the keyboard 1, and the cursor on the PC screen can be moved by tracing the pad section 4 with a finger. Further, the left switch 5 and the right switch 15 are switches for expanding separate menu boxes, and the left switch 5 has a tap function for fixing the cursor position via the OR gate 12, and the tap function is The tapping signal 9 is input to the OR gate 17 via the AND gate so that the tapping signal 9 can be exerted by lightly touching the pad surface. In this embodiment,
Information for selecting valid / invalid of the tap function can be input from the keyboard 1. When this information 6 is input to the system section 2, the system 2 receives the decoding circuit 3
A specific command 7 is issued to the decoding circuit 3, and the decoding circuit 3 outputs a signal 8 (valid or invalid) according to the command 7.

On the other hand, the tapping signal 9 output from the pad section 4 of the PD section 13 is ANDed with the signal 8 (signal 1
0) is output, and the logical sum (switch signal 12) with the input signal 11 from the left switch 5 of the PD unit 13 is sent to the system 2. Therefore, when the information 6 indicates that the tap function is invalid, even if the tapping signal 9 is valid, since the AND condition is not satisfied in the AND gate 16, the signal 10 is not valid and the switch signal 12 Is not output to the system unit 2.

In this way, the user can
Enable the tap function. Since it is possible to switch the invalidity, it is possible for the user himself to avoid an erroneous operation on the PD.

FIG. 2 shows a second embodiment of the present invention. In contrast to the first embodiment, the tap function can be switched between "valid / invalid" by an input signal from the PD section 13. It is a thing.

That is, this embodiment has the same basic configuration as that of the first embodiment (FIG. 1), but as is apparent from the reference of FIG. 2, the keyboard 1 enables / disables the tap function. Information 6 input for selection and PD unit 1
The difference is that the logical sum (signal 6 ') with the information 19 input to select valid / invalid of the tap function from 3 is sent to the system 2 as information for selecting valid / invalid of the tap function. To do.

As a result, in the first embodiment, the tap function can be enabled / disabled only by the key input from the keyboard 1. However, in the present embodiment, the tap function is also input. Switching is possible, which is more convenient.

[0015]

As described above, according to the present invention, the tap function is made "invalid" because the user can switch the tap function between valid and invalid according to the situation by an input signal from an input means such as a keyboard. By doing so, the tapping signal from the pad section can be ignored,
There is an effect that it becomes possible to avoid an erroneous operation due to the tap function of the PD.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

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

[Explanation of symbols]

 1 Keyboard 2 System Section 3 Decoding Circuit 4 Pad Section 5 Left Switch 13 Pad Type PD Section 14 PC Main Body 15 Right Switch 16 AND Gate 17, 18 OR Gate

Claims (3)

[Claims] 1. An information processing apparatus having a pad type pointing device, characterized in that a tap function for fixing a cursor position on a screen by tapping a pad surface is switched between valid and invalid by an input from an input / output means. apparatus. 2. The information processing apparatus having a pad-type pointing device according to claim 1, wherein the input / output unit is a keyboard. 3. The pad type pointing device according to claim 1, wherein the input means is the pad type pointing device.