JPH05303463A - Pen input device - Google Patents

Abstract

PURPOSE:To use the pen input device by a sense of inputting/erasing work by a normal writing tool. CONSTITUTION:When input work is executed in the upside-down state of an input pen 1 against its input work at the time of erasing work, an inversion detecting part 13 built in the pen 1 detects the inversion of the pen 1, a function switching part 22 sends a signal indicating erasing work to a control part 23, which judges that an input work is for erasing work and erases an inputted part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pen input device for inputting data with an input pen and displaying it on the main body.

[0002]

2. Description of the Related Art In a conventional pen input device, a character or a picture is input to an input surface using an input pen, and the input signal is detected and displayed on the main body.
If you want to erase the characters or pictures that have already been input, press the button that indicates the erase function provided on the input pen to operate the switch, and then perform the input operation on the input surface. I was supposed to be able to erase only the part.

[0003]

However, in such a pen input device, when performing an erasing operation, the erasing function button is pressed each time the erasing operation is performed. There was a problem that the interval was different from the act of doing and there was a feeling of strangeness.

The present invention has been made in view of the above points, and an object of the present invention is to provide a pen input device which can be used with the feeling of inputting and erasing work with a normal writing instrument. ..

[0005]

According to the present invention, an input pen, an input signal input to an input surface by the input pen is detected by an input detection unit, and the control unit is controlled by the detected input signal. A pen input device having a main body for displaying on a display unit via a reversal detection unit for detecting its own orientation in the input pen, and a transmission unit for transmitting a detection signal from the reversal detection unit. In addition, the main body is provided with a function switching unit that outputs a selection signal of input or erase according to a detection signal from the inversion detection unit, and the control unit inputs the input signal from the input detection unit based on the selection signal. It is characterized in that display is performed on the display unit by determining whether to erase or erase.

[0006]

In the pen input device of the present invention, in the case of erasing work, if the input work is carried out while the input pen is held upside down with respect to the case of the input work, it becomes the input pen. The built-in reversal detection unit detects that the input pen has been reversed, and the function switching unit sends a signal to the control unit to indicate that it is erasing work by the detection signal, and the control unit erases the input signal. It is judged as the above, and the input part is deleted.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic block diagram showing an embodiment of the present invention, and FIG. 3 is a flow chart showing the operation.

An input pen 1 has a pencil-shaped appearance and is used for inputting or erasing characters or pictures on an input surface (not shown).

The input pen 1 includes input units 11 and 12, an inversion detection unit 13 and a transmission unit 14.

The input units 11 and 12 are provided at both ends of the input pen, and characters or the like are drawn with a pencil on an input surface (for example, one that generates an input signal when pressure is applied) provided in an input detection unit described later. The input is performed by pressing the input units 11 and 12 as if drawing a picture. One of the input units (for example, the input unit 11) is used for input work, and the other (the input unit 1).
2) is used for erasing work.

Reference numeral 13 denotes a reversal detection unit, which is built in the input pen 1 and detects the vertical relationship between the input units 11 and 12 of the input pen 1. That is, which input unit 11,
12 is used to detect whether work is being performed. Therefore, when the work is being performed using the input unit 11, the work is an input work, and when the work is being performed using the input unit 12, the work is an erasing work.

As an example of the configuration of the reversal detection section 13, as shown in FIG. 1, for example, a weight 15 and a contact section 16 are provided, and the change of the direction of the input pen 1 is changed by the change of the weight 15 to open and close the contact section 16. It is what is detected by. That is, the input unit 1
When 1 is down, the weight 15 is located on the side opposite to the side where the contact portion 16 is present, and the contact is in the open state. Conversely, as shown in FIG. 2, the input pen 1 is reversed. In that case, the contact portion 16 is closed by the weight 15.

Reference numeral 14 is a transmission section for transmitting an opening / closing signal of the contact section 16. That is, a signal indicating the direction of the input pen 1 is transmitted to the main body described later.

Reference numeral 2 is a main body which receives an input signal from the input pen 1 and displays it. The main body 2 has an input detection section 21, a function switching section 22, a control section 23, a display section 24 and a data processing section 25. Become.

The input detection unit 21 has an input surface and detects the contents input from the input pen 1. For example,
As described above, if a device that generates an input signal when pressure is applied to the input surface is used, the input signal indicating the portion of the input surface pressed by the input units 11 and 12 of the input pen 1. Occurs.

The function switching section 22 is an identification signal indicating whether the work by the input pen 1 is an input work or an erasing work, based on the signal indicating the direction of the input pen sent from the transmission section 14 of the input pen 1. Is generated.

Based on the identification signal from the function switching unit 22 and the input signal from the input detection unit 21, the control unit 23 determines that the work using the input unit 11 is an input work, and the operation is performed up to now. Data is newly added to the data input to the display unit 24 and displayed on the display unit 24, and the input data is sent to the data processing unit 25. Further, in the case of the work using the input unit 12, it is determined that the work is an erasing work, the input data of this time is deleted from the data input so far, and the data is displayed on the display unit 24. It is sent to the processing unit 25.

The display unit 24 displays the input content on the screen by the signal from the control unit 23, and the data processing unit 25 performs the data processing by using the input signal from the input pen 1. ..

According to the present embodiment, when erasing the input contents, it can be erased by holding the input pen 1 upside down and working again, so that it is not necessary to press the button indicating the erasing function each time. , Pen input work can be done with the feeling of writing and erasing characters and pictures with a pencil equipped with an eraser.

As shown in FIG. 4, in the case of erasing work, a range B wider than the actual locus A of the input unit 12 is erased, and the difference from the range handled as input data at the time of input work. If you attach, you can get a feeling of operation more like an eraser.

FIG. 5 shows another embodiment of the present invention. In the above-mentioned embodiment, ultrasonic transducers 17 and 18 are used as the reversal detection unit 13 and the transmission unit 14 of the input pen 1.
And the oscillator circuits 19 and 20, and the main body 2 is provided with an ultrasonic wave detection unit 26 and a frequency determination unit 27.

An ultrasonic oscillator 17 and an ultrasonic oscillator 18 are installed near the input section 11 and the input section 12, respectively, and oscillating circuits 19 and 2 for generating signals of different oscillation frequencies f1 and f2.
When 0 is set, the ultrasonic transducers 17 and 18 send out ultrasonic waves having different frequencies.

The ultrasonic detecting section 26 is installed near the input detecting section 21 and detects ultrasonic signals output from the ultrasonic waves 17 and 18 of the input pen 1, and the frequency determining section 27. By determining the frequency of the ultrasonic signal detected in step 1, it is determined which of the ultrasonic transducers 17 and 18 has received the signal. That is, when the input unit 11 is used for the work, the ultrasonic signal of the oscillation frequency f1 from the ultrasonic transducer 17 is detected by the ultrasonic detection unit 26,
Since the frequency f1 is determined by the frequency determination unit 27,
It can be determined that it is input work.

Needless to say, the reversal detection of the input pen 1 is not limited to these, and other methods may be used.

[0026]

As described above, according to the pen input device of the present invention, in the case of the erasing work, the input work is carried out with the input pen held upside down with respect to the case of the input work. For example, the reversal detection unit built in the input pen detects that the input pen has been reversed, and the function switching unit sends a signal indicating that the erasing operation is being performed to the control unit by the detection signal. Then, it was judged that the input signal was due to erasing work, so I tried to erase the input part,
It was possible to provide a pen input device that can be used as if inputting or erasing with ordinary writing utensils.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an input pen according to the above.

FIG. 3 is a flowchart for explaining the operation of the present embodiment.

FIG. 4 is a schematic diagram for explaining the operation of the present embodiment.

FIG. 5 is a schematic configuration diagram showing another embodiment of the present invention.

[Explanation of symbols]

 1 Input pen 2 Main body 11 Input section 12 Input section 13 Inversion detection section 14 Transmission section 15 Weight 16 Contact section 21 Input detection section 22 Function switching section 23 Control section 24 Display section 25 Data processing section

Claims (1)

[Claims] 1. An input pen and a main body for detecting an input signal input to an input surface by the input pen by an input detection unit and displaying the detected input signal on a display unit via a control unit. And a reversal detection unit for detecting the orientation of the self and a transmission unit for transmitting a detection signal from the reversal detection unit, the reversal detection unit being provided in the main body. It is equipped with a function switching unit that outputs a selection signal of input or erase according to the detection signal from
The pen input device, wherein the control unit performs display on the display unit by determining whether the input signal from the input detection unit is input or erased based on the selection signal.