JPS5853770B2 - Kanji input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a kanji input device that has a high-quality printing function and can also be connected to a computer.

Conventionally, a wide variety of devices of this kind have been commercially available, such as ■Japanese type, ■multi-stage shift keyboard mechanism, and ■tablet type, but since there are so many types of kanji, ■only prints, The disadvantages of (1) and (3) are that in order to provide a printing mechanism, an extremely expensive storage device for matrix characters must be used.

In order to solve these drawbacks, this invention optically reads the character quantity form and character code on the input dial board, outputs the character code to a suitable recording device or computer, and prints out the character quantity form as it is. It was designed to be used in

The present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which 1 is a light pen that emits light of an appropriate wavelength, 2 is the light emitted by the light pen 1, and 3 is a printed character type and character code. 4 is a compound eye lens, 5 is a large aperture lens, 6 is a magnification conversion lens, 7 is a focal plane of the large aperture lens 5,
8 is a photoconductive tape coated with a photoconductive substance, 9 is a pulley for driving this photoconductive tape 8, 10 is a toner coating section, and 11 is a section for applying an electric charge to the photoconductive tape 8. A corona discharge electrode, 12 a printing paper for outputting input characters, and 13 a photodiode array for detecting character codes.

FIG. 2 is a diagram for explaining the principle of the input dial board 3 in FIG. 1, and is a partially enlarged view, in which 14 is a character encircling shape, and 15 is a square-shaped character code.

To operate the above device, a person who wishes to input characters holds a light pen 1 and uses it to illuminate any character box 14 and character code 15 on the input dial board 3.

At this time, by placing the input dial plate 3 on the focal plane of the compound eye lens 4, the light emitted from one point on the input dial plate 3 becomes parallel light after passing through the compound eye lens 4, and is turned into parallel light by the large aperture lens 5. The light is condensed onto the focal plane 7 of the large-diameter lens 5.

At this time, the image of the character enclosure 14 on the input dial plate 3 is always focused on a certain section of the focal plane 7, that is, a predetermined area.

Such an optical system has already been announced as a storage device for Kanji matrix and is not particularly new, so its details will be omitted.

In this invention, the character code 15 of the image on the focal plane γ is detected by the photodiode array 13, converted into an electrical signal, and output to the outside.

On the other hand, the character enclosure 14 is enlarged or reduced to an appropriate size by the magnification converting lens 6, and then imaged onto the photoconductive tape 8.

This photoconductive tape 8 is configured to move clockwise in this figure, and starts its operation using the light reception signal of the photodiode array 13 or the drive signal of the light pen 1 as a synchronization signal.

First, upon receiving a synchronization signal, charge is accumulated on the photoconductive tape 8 by the corona discharge electrode 11.

The photoconductive tape 8 is then moved a certain distance clockwise and then stopped, and the image of the character box 14 is focused on this charged area to form a latent image.

Next, the photoconductive tape 8 moves in the same direction, is coated with toner in the toner application section 10, moves to the front of the printing paper 12, is transferred and fixed onto the printing paper 12, and the input characters are output. be done.

Thereafter, the printing paper 12 is moved horizontally by one character in the case of horizontal writing, or vertically in the vertical direction in the case of vertical writing, and waits for the next input operation.

As the light source used in the light pen 1, an infrared emitting LED is suitable because it requires sufficient intensity and avoids eye fatigue, but other light sources can also be used.

Further, the light pen 1 may have a power cord attached to it, but it may also have a built-in power supply to make it cordless.

The configuration of the input dial board 3 does not necessarily include a character enclosure 1 on a transparent board.
It is not necessary to print 4 and the character code 15, and any material can be used as long as it has the same transmitted light intensity as ordinary paper that can remove the blue print.

For example, a piece of moderately thick paper stuck to a glass or transparent plastic plate, or a plastic sheet filled with white pigment may be suitable.

Actually printing the character code 15 on the surface of the input dial board 30 makes the input dial board 3 very difficult to see, so a character encirclement is printed on the surface of the board that is not completely opaque but sufficiently diffuses light. 14. It is desirable to write the character code 15 on the back.

It is desirable that the character encirclement 14 be printed over the entire section to make it easier to see, but in this case, this section must be uniformly illuminated, which reduces operability.

FIG. 3 shows an embodiment of the input dial plate 3 according to the present invention, and FIG. 3A shows the front side, and the opening in FIG. 3 shows the back side.

16 is a character encirclement printed with paint that is opaque to the naked eye and transparent to the light of the light pen 1, that is, infrared light;
17 and 18 are character encircles and character codes printed with paint that is opaque to infrared light.

Many paints and mixtures such as methylene blue and rhodamine dyes are suitable for the former, and ordinary carbon-based paints are suitable for the latter.

If the input dial plate 3 is configured in this manner, the character encirclement 16 printed on the front face of the input dial plate 30 is discernible to the naked eye, but is transparent to the light from the light pen 1.

Therefore, only the character enclosure 17 and the character code 18 on the back side are opaque to the light from the light pen 1, and the character enclosure 17 on the back side is actually printed.

At this time, the character matrix 17 and the character code 18 are located in a narrow area in the center of each character section, so the input operation using the light pen 1 only needs to be uniformly illuminated around the center, making it easy to operate. Become something.

If the focal length of the compound eye lens 4 is f1, and the focal length of the canine diameter lens 5 is f2, then the magnification of this lens system is f2.
/f1.

The time magnification between f1=10 and f2300 is 30 times.

Therefore, unless the bone character 1γ is made very small,
Since the printed characters are too large, use the magnification conversion lens 6.
Reduce it appropriately.

At this time, if you prepare several lenses with different magnifications and make them interchangeable, it will be easy to reduce or enlarge the printed characters.

The photoconductive tape 8 needs to be sensitive to the light from the light pen 1, but the exposure time per time is several tens to several hundreds.
Since it can be as long as m sec, there is no need for particularly high sensitivity.

Further, the width of the photoconductive tape 8 may be several mm to several σ since it is sufficient to record one character.

If the photoreceptor does not have a sufficient lifespan, an endless cassette tape structure rather than a reciprocating one may be used to reduce the frequency of use per unit area and to facilitate replacement.

In addition, to increase the number of input characters, it is only necessary to replace the input dial plate 3, and processing of external characters is extremely simple.

In the above embodiment, a photodiode array was used to detect the character code 15 or 18, but another array of light receivers may be used.

Next, an embodiment of the present invention will be explained below.The section for each 31 characters is 6 x 6-, and the number of accommodated characters is 16 x 16 =
A 256 input dial board 3 was made, and a character enclosure 16 with a side of 5 mm was painted on each section with blue paint containing methylene flue.
2 on each side with paint containing carbon powder on the back side.
An 8-bit character code 18 was printed at intervals of 0.5 mrn above and below the character enclosure 1γ.

As the light source of the light pen 1, an LED with a wavelength of 750 nm and an output of 40 mW was used, and a microswitch provided in the light pen 1 was used to emit light of 200 m5ec.

The compound eye lens 4 had a focal length of fl-5m7IL, the large diameter lens 5 was a Fresnel lens with a focal length of 15cIr1, and the magnification conversion lens 6 had a magnification of 1/15.

The photoconductive tape 8 used was one coated with a photoconductive substance containing copper phthalocyanine.

With the above-described apparatus, clear printing results as shown in FIG. 4 could be obtained on the printing paper 12.

As explained in detail above, according to the present invention, bone-shaped characters can be easily printed without the need for an expensive storage device for bone-shaped characters, and character codes can be output at the same time.
Moreover, since the bone-shaped characters are displayed on the front side, there is an advantage that an easy-to-use and inexpensive kanji input device can be constructed.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing one embodiment of the present invention, Fig. 2 is an enlarged view for explaining the principle of the input dial in the embodiment of Fig. 1, and Fig. 3 A is a town input dial board. FIG. 4 is a diagram showing an example of printing according to the present invention. In the figure, 1 is a light pen, 2 is light from the light pen, 3 is an input dial, 4 is a compound eye lens, 5 is a large aperture lens, 6 is a magnification conversion lens, 7 is a focal plane, and 8 is a photoconductor tape,
9 is a tape feeding pulley, 10 is a toner application section, 11 is a corona discharge electrode, 12 is printing paper, 13 is a photodiode array, 14 is a character encircle, and 15 is a character code.

Claims (1)

[Claims] 1 The front side is printed with ink that is transparent to light of a specific wavelength and can be recognized by the inner eye, and the back side is printed with ink that is opaque to light of a specific wavelength. an input dial board having a character code of the form, a light pen that illuminates a section on the input dial board, and a compound eye that forms an image of the character amount shape and character code illuminated by the light pen in a predetermined area. It consists of an optical system consisting of a lens and a large-diameter lens, a photoreceptor array that detects the image of the imaged character code and outputs it as an electrical signal, and a recording device that directly records the imaged character code image. A kanji input device characterized by: