JPS5942909B2 - character input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a character input device for inputting characters handwritten on a sheet of paper placed in a predetermined area to a central processing unit or the like.

Such a character input device inputs characters into a central processing unit of a computer at the same time as writing characters by hand on plain paper (ordinary paper) placed in a predetermined area. /I was using a tablet with a resolution of 1.

There are various kinds of tablets, but in the digital method, the electrode matrix includes electrostatic coupling, electromagnetic induction, electrode contact, piezoelectric effect, etc. Normally, such a tablet is placed on the entire predetermined area and used, for example, when plain paper is A4.
Taking paper size as an example, the size of a normal tablet is 21.
(Approximately V7l x 30cm was required, and the total number of points to be resolved was 6.3 million, making the tablet very expensive and the device expensive.)

Therefore, the present invention aims to reduce the price of the entire device by using such expensive tablets as efficiently as possible. A character input device for inputting handwritten characters into a central processing unit, etc., has a tablet having the same size or larger size in one direction of the predetermined area and smaller size than the predetermined area in the other direction, and the tablet is used for inputting handwritten characters. This is achieved by moving the line as the line changes.

The present invention will be explained in detail below with reference to the drawings. FIG. 1 shows an embodiment of the character input device of the present invention.

In the figure, 1 is plain paper, 2 is a tablet, 3 is a line spacing designation switch, 4 is a line change command switch, 5 is a line change completion lamp, and 6 is a pulse motor. Normally, when writing characters by hand on plain paper 1, the characters are written sequentially in rows or columns, so the tablet 2 only needs to be on the part where the handwritten characters are currently being written. Focusing on this point, this embodiment will be explained by taking as an example a case where handwritten characters are written sequentially along the lines. First, plain paper 1 is set in the movement area of tablet 2.

Next, the line spacing of this plain paper is specified by the line spacing designation switch 3.

In this way, the tablet 2 is positioned on the top row of the plain paper 1.

Next, when performing a line feed, the line change command switch 4 drives the pulse motor 6 to position the line to the next line.

The completion of this line change can be known from the line change completion lamp 5.

In this way, the tablet 2 is sequentially line-broken and handwritten characters are written along the lines, and at the same time, the handwritten characters are input into the central processing unit of a computer or the like.

, FIG. 2 is a block diagram of the character input device including the movement of the tablet.

In the figure, 7 is an encoder, 8 is a central processing unit, 9 is a tablet and an interface, and 10 is a pulse motor drive circuit.

The line spacing specified by the line spacing designation switch 6 is stored in the encoder 7.

The output of this encoder 7 is the pulse motor 1 drive circuit 10
is input to specify the drive amount of the pulse motor.

When a line change is commanded by the line change command switch 4, the pulse motor is driven one time along with the information from the encoder 7 mentioned above, and the tablet 2 is moved by the line interval. Handwritten character information from the tablet is input to a central processing unit 8 such as a computer via the tablet and an interface J.

In this way, handwritten characters are input to the central processing unit.

As described above, the present invention makes it possible to provide a very inexpensive character input device by providing a character input device that does not require a very expensive tablet as large as a paper. Ta.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the character input device of the present invention, and FIG. 2 shows a block diagram of the character input device including movement of a tablet. In the figure, 1 is plain paper, 2 is a tablet, 3 is a line spacing specification switch, 4 is a line change specification switch, 5 is a line change completion lamp, 6 is a pulse motor, 7 is an encoder, 8 is a central processing unit, 9 is an interface including a tablet, 10
indicate the pulse motor drive circuit, respectively.

Claims (1)

[Claims] 1 In a character input device that inputs characters handwritten on paper placed in a predetermined area into a central processing unit, etc., one direction of the predetermined area is the same size or larger, and the other direction is smaller than the predetermined area. a stand having a predetermined area for setting paper and the tablet, the tablet being moved as the line changes for inputting handwritten characters; and a line change command switch for instructing line feed of the tablet. a drive mechanism including a pulse motor that moves the tablet on the table in response to an output signal from the line change command switch; a drive circuit for the pulse motor; and a line spacing designation switch that specifies the line spacing of the paper. , and an encoder that stores the line spacing specified by the line spacing designation switch and outputs a signal specifying the drive amount of the pulse motor to a drive circuit of the pulse motor.