JPH04165522A - Handwriting input device - Google Patents

Abstract

PURPOSE:To easily and naturally execute the erasing operation at the time of handwriting input executed by a stylus pen by providing a first sensor for coming into input-contact at the time of entering a handwriting input, and a second sensor for coming into line or face-contact at the time of erasing partially information on both ends of the stylus pen. CONSTITUTION:A writing sensor 2 is provided on the tip A of a stylus pen 1, and an erasing sensor 3a is provided on the other end B. The writing sensor 2 is used as a sensor at the time of writing (at the time of entry), and formed projectingly so as to come into point-contact with a tablet. The erasing sensor 3a is used for erasing a character and a graphic, etc., written by the writing sensor 2, and formed in a plate-like shape so as to come into face-contact or line-contact with the tablet. In such a way, a handwriting input of a natural operating sense is executed and the operation is executed easily, and also, at the time of erasure, an area of the contact part is larger than that at the time of writing, therefore, erasure is executed without tracing exactly handwriting at the time when it is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a manual input device, and more particularly to a stylus pen and an input information processing device used in a handwriting input device.

BACKGROUND ART Conventionally, various types of input tablets, such as resistive type or ultrasonic type, have been used as user interface means for various electronic devices.

Some devices of this type use a dedicated input pen to input handwritten characters, figures, and the like.

FIG. 5 is a diagram showing a conventional example of a handwriting input device using a liquid crystal display tablet and a stylus pen using a personal computer.
In the figure, 21 is a liquid crystal display tablet, 22 is a stylus pen, 23 is a personal computer, and 24 is a cable. That is, it is a diagram showing a tablet with an integrated input/output port and a personal computer.

After the online handwritten text screen editor is launched,
The keyboard will not be used at all until it is finished. You can do all the work with just one stylus pen. An example screen in FIG. 5 is shown in FIG. 6.

The largest area is the paper screen. Write on this screen using a stylus pen. Handwriting is instantly displayed directly below the stylus. You can also erase, move, add line breaks, and add handwriting using just a stylus pen. The ``instructions'', ``line breaks'', ``erasers'', ``pens'', etc. in the diagram are tools (electronic stationery) for writing and editing on the paper screen. When the user selects one of these with the stylus,
A stylus pen acts as that tool.

A ``pen'' is a writing instrument, an ``eraser'' is a tool to erase handwriting, a ``line break'' is a tool to break a line in the middle of a written line, and an ``instruction'' is a tool to point to an arbitrary location on a paper screen.

In addition, there are screens for performing writing work and editing work. In addition, electronic pens are a real pen and a virtual pen integrated into one.
perform one function. The actual pen hardware is a stylus pen. The tip of the stylus pen has an on10ff switch. This switch is turned on when the pen tip slides on the practical paper (tablet surface), and is turned off when it leaves the practical paper.

A virtual pen is a device that simulates the movements of a real pen in a virtual world. In this way, the stylus pen can be used to input, erase, edit, etc., characters, figures, etc. by hand.

Entries can be made using a stylus pen as if writing with a pen on paper, but to erase, it is necessary to press the command "Eraser" at the bottom of Figure 6 with the stylus pen and specify the position to be erased, which makes the operation easier. It's a hassle.

The explanation based on FIGS. 5 and 6 above is based on ``R Stroke Editor and Electronic Stationery - Screen Editor by Direct Instructions and Direct Operation'' (3 Morinos, Human Int.
erface News and Report VO
l, 5. N.Q.I.

pP, 41-48 Human Interface Committee of the Society of Instrument and Control Engineers, January 1990). That is, a handwriting input device that allows writing, erasing, etc. to be performed using a single stylus pen is described.

Further, Japanese Patent Laid-Open No. 2-194417 proposes an "rCAD input device". The contents will be explained below based on FIG.

To speed up input devices using stylus pens,
A command button is added to the stylus pen. In the figure, 31 to 35 are push buttons, 31A to 35A are switches, 31
B to 36B are connector pins, C is a common pin, 36 is a light receiving section, 36A is a light receiving sensor, 37 is a connector, and 38 is a cable.

Switches 31A to 35A corresponding to the push buttons 31 to 35 are provided inside the shaft part, and terminals on one side of the switches 31A to 35A are led to connectors 37 at the ends of cables 38 each composed of separate electric wires, and connected to connector pins. 31B-35
Form B.

On the other hand, a light receiving sensor 36A is arranged at the tip of the pointed light receiving portion 36 at the tip of the shaft portion, and one signal line from the light receiving sensor 36A is also guided to a connector 37 at the tip of the cable 38 to form a connector pin 36B. do. Also switch 31A~
The terminal at the other end of 35A and the signal line at the other end of light receiving sensor 36A all become one electric wire (common line), which is led to connector 37 at the tip of cable 38 to form connector pin C.

In such a configuration, when using the stylus pen, by providing the push buttons 31 to 35 in positions that are easy to press with the finger holding the shaft of the stylus pen, when inputting commands indicated by the push buttons, input can be made directly from the stylus pen. This eliminates the need for keyboard or mouse operations.

That is, by adding a command switch to a stylus pen, it is possible to simultaneously input a position specification using the pen tip and a command instruction at that time.

It is also conceivable to use this in the above-mentioned handwriting input device and add an erase command switch to the stylus pen to facilitate the erase operation. However, there is a drawback that the switch may be pressed by mistake when writing, leading to erroneous operation.

The present invention has been made in view of the above-mentioned circumstances.
The purpose of this invention is to provide a handwriting input device that allows erasing operations during handwriting input using a stylus pen to be performed more easily and naturally.

In order to achieve the above object, the present invention provides: (1) a first sensor that makes point contact when writing handwritten input and is provided at the tip of a stylus pen; or (2) a point contact when writing handwritten input, and a second sensor provided at the other end of the stylus pen. A first sensor provided at the tip of the stylus pen, a second sensor provided at the other end of the stylus pen, and a second sensor provided at the other end of the stylus pen make line or surface contact when erasing a portion of information written by the first sensor. a handwriting input processing unit that indicates that information has been written at a point-shaped position touched by the first sensor, and performs processing to erase the point touched by the second sensor and information in a predetermined range including the point; and, furthermore,
(3) In (1) or (2) above, a predetermined space provided inside the stylus pen, a weight that moves within the space by gravity, and a plurality of sensors that detect the position of the weight. (4) In (3) above,
The stylus pen has a built-in wireless transmitter for transmitting output signals from a plurality of sensors that detect the position of the weight. Hereinafter, the present invention will be explained based on examples.

FIG. 1 is a configuration diagram for explaining an embodiment of a handwriting input device according to the present invention, in which ]- is a stylus pen;
2 is a writing sensor, 3a is an erasing sensor, 4 is a cable, and 5 is a handwriting input processing section.

A writing sensor 2 is provided at the tip A of the stylus pen 1, and an erasing sensor 3a is provided at the other end B.

The writing sensor 2 is used as a sensor during writing (writing), and has a protruding shape so as to make point contact with a tablet (not shown). While the writing sensor 2 is in contact with the tablet, the 1 handwriting input processing section 5 determines that it is in a writing state.

The front 3 self-erasing sensor 3a is used to erase characters, figures, etc. written by the writing sensor 2,
It has a flat plate shape that makes surface or line contact with the tablet. This shape allows the handwriting to be erased without having to trace it accurately. While the erasing sensor 3a is in contact with the tablet, the handwriting input processing section 5 determines that the characters, figures, etc. at the position in contact with the tablet are in the erased state.

FIG. 2 is a diagram showing another embodiment of the handwriting input device according to the present invention. In the figure, 3b is an erasing sensor, and other parts having the same functions as those in FIG. 1 are given the same reference numerals. It is.

In this embodiment, the erasing sensor 3b has a spherical shape and makes point contact with the tablet, but when the handwritten input processing unit 5 specifies the point of contact and a certain range including that point. It then performs processing to delete characters, isomorphs, etc. within that range.

FIGS. 3(a) and 3(b) are diagrams showing still another embodiment of the handwriting input device according to the present invention, where FIG. 3(a) shows the handwriting input device while writing, and FIG. FIG.

In the figure, 1] is a space part, 12 is a first position detection sensor,
13 is a second position detection sensor, 14 is a weight, and other parts having the same functions as in FIG. 1 are given the same reference numerals.

A space 11 is provided inside the stylus pen 1, and a weight 14 that can move inside the space and two position detection sensors 12 and 13 that detect the position of the weight are used to determine which end of the stylus pen 1 contacts the tablet. It is designed to determine whether there are any.

FIG. 4 is a diagram showing still another embodiment of the handwriting input device according to the present invention, in which 15 is a wireless transmitter, 16 is a handwriting input device, and other parts having the same functions as in FIG. 3 have the same reference numbers. is attached.

Two position detection sensors 12 that detect the position of the weight 14
, 13 are transmitted to a handwriting input processing section 16 by a wireless transmitter 15 built into the stylus pen 1, and the handwriting input processing section 16 is provided with a receiver.

As is clear from the above description, the present invention has the following effects.

(1) - A sensor is installed at the tip and the other end of the stylus pen, and when the tip is in contact with the tablet, it is in the writing state, and when the other end is in contact with the tablet, it is in the erasing state. In addition, since two position detection sensors are used separately, there is no need to issue commands for erasing, and handwriting input can be performed with the natural feeling of writing on paper with a regular pencil with an eraser. It becomes easier. Further, when erasing, the area of the contact portion is larger than when writing, so it can be erased without accurately tracing the handwriting.

(2) Since the contact during erasing is a point contact, there is no need to pay attention to the angle of the stylus pen compared to when contact is made with a line or surface.

(3) Since the weight inside the stylus pen and the position detection sensor determine which end of the stylus pen is in contact, the stylus pen does not require a contact sensor.

(4) Since the output signal of the sensor for detecting the position of the weight inside the stylus pen is outputted by the wireless transmitter, the stylus pen does not require a cable, improving operability.

[Brief explanation of drawings]

FIG. 1 is a block diagram for explaining one embodiment of the handwriting input device according to the present invention, FIGS. 2 to 4 are diagrams showing other embodiments of the handwriting input device according to the present invention, and FIG. 7 to 7 are diagrams showing conventional handwriting input devices. 1... Stylus pen, 2... Writing sensor, 3a...
- Erasing sensor, 4... cable, 5... handwritten input processing section. Patent applicant Rico Co., Ltd. −

Claims (1)

[Claims] 1. Point contact is made when writing handwritten input, and line or surface contact is made with a first sensor provided at the tip of the stylus pen and when partially erasing information written by the first sensor. , and a second sensor provided at the other end of the stylus pen. 2. Point contact is made when writing handwritten input, and the first sensor provided at the tip of the stylus pen, and line or surface contact is made when erasing a portion of the information written by the first sensor, and the other part of the stylus pen A second sensor provided at the end indicates that information has been written at a dot-shaped position contacted by the first sensor, and the information is written at the point contacted by the second sensor and a predetermined point including the point. A handwriting input device comprising: a handwriting input processing section that performs a process of erasing information in a range. 3. The stylus pen includes a predetermined space provided inside the stylus pen, a weight that moves within the space by gravity, and a plurality of sensors that detect the position of the weight, and the tip and other ends of the stylus pen are in contact with each other. 3. The handwriting input device according to claim 1, further comprising discriminating means for discriminating which end is in contact when the handwriting input device is touched. 4. The manual input device according to claim 3, wherein the stylus pen has a built-in wireless transmitter for transmitting output signals from a plurality of sensors for detecting the position of the weight.