JPS589448B2 - It's hard to find the right place. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical two-dimensional information input and recording device that is an information input device to an information processing device and can also be used for information recording.

Punch cards are used as a means of recording and inputting information.

Punch cards record information by punching, so once a card is filled in, it retains only that information and cannot be used as any information recording device thereafter.

In other words, since the relationship between each card and the information is fixed, it is good for storing information, but there are other means of storing information, such as temporary storage of information, transmission of information from device to device, etc. When used mainly, a large number of cards are required and the cards are consumed, which is uneconomical.

The present invention aims to provide a card-shaped information input and recording means suitable for use in such information distribution situations.

The present invention is composed of a transparent plate, and takes advantage of the fact that in a transparent plate, light incident from the plate surface does not propagate inside the plate in a direction parallel to the plate surface. This is a plate-shaped information input and recording device in which light is entered into a transparent plate through a hole using an appropriate means to be viewed from the side edge of the plate.

The present invention will be explained below with reference to Examples.

In FIG. 1, 1 is a transparent plate, 2 is a non-light-transmitting layer provided on its surface, which is formed by pasting a film or applying paint, and is provided with an opening 3 for transmitting light.

An information input hole 4 is bored in the transparent plate 1 below the opening 3.

5 is a transparent layer pasted on the back side of the transparent plate 1, and 6 is an additional layer 5.
This is a light-absorbing, non-transparent layer coated on the lower surface of the .

Now considering light traveling in the direction of arrow X inside the transparent plate 1, this light travels inside the plate 1 as it is.

On the other hand, light entering the hole 4 from above the plate 1 perpendicularly to the plate surface is absorbed by the layer 6 on the lower surface of the plate and does not enter the plate 1.

Therefore, when you look at board 1 from the side, the interior of the board appears dark (assuming that there is no light coming from the Y direction when looking in the X direction).
.

If a light emitting body or a thin white object is inserted into the hole 4, the hole 4 will appear bright when viewed from the side.

In the example shown in Fig. 1, the peripheral wall of the hole 4 is tapered, and the light that enters from above the plate 1 at a considerably inclined angle to the surface of the plate 1 has a large incident angle on the side surface of the hole 4 as shown in the figure, so that most of the light is incident on the side surface of the hole 4 as shown in the figure. Most of the light is reflected and enters the layer 5 at an almost perpendicular angle, so it is hardly reflected and is eventually absorbed by the layer 6. Therefore, it hardly enters the inside of the plate 1, so the side wall of the hole 4 is The ability to prevent external light from entering is higher than when the structure is simply formed vertically.

In order to allow light to enter the plate 1 through the holes 4, a light-scattering translucent film, such as a piece of thin white paper, may be pasted over the holes 4.

In FIG. 2, C indicates a configuration mainly consisting of the above-mentioned transparent plate 1, which corresponds to an information recording card.

The holes 4 are arranged in rows and columns, and each hole is given an x,y coordinate.

Px1 to Px5 and Py1 to Py4 are photoelectric elements arranged on two adjacent side edges of the plate 1 in correspondence with the vertical and horizontal rows and columns of the holes 4, and 7 is a lens placed in front of each element.

Each lens has a hole (
(viewed from the side) should be focused on the center of the light-receiving surface of the corresponding photoelectric element, or the images of the holes in other rows and columns should be focused away from the center of the light-receiving surface, so the holes should be centered in front of the light-receiving surface. If a light-shielding plate with holes is placed, each photoelectric element will receive only the light coming from the hole in the row or column to which it belongs.

A light-shielding wall 8 is provided on the two side edges of the plate C on the side where the photoelectric elements are not arranged to prevent light from entering, and this also serves as a positioning guide when setting the plate C.

As mentioned before, since no light enters the plate 1 of the plate C until now, the output of each photoelectric element is 0.

Now insert the light pen L into any one hole 4, for example 40 in the figure, and the photoelectric element Px3 and PV of the row and column to which the hole belongs
2 receives light and outputs an output.

The output of each photoelectric element is sent to a decoder circuit D, where the outputs of PX3 and Py2 are decoded and input to the information processing device.

Decoder D is an interface device interposed between board C and the information processing device.

When using the light pen in the configuration shown in Figure 2, board C is used only as an information input device, but thin blank paper is pasted on the predetermined hole 4 according to the information to be recorded, and the entire board C is inserted from above. When illuminated, it can both record and input information in the same way as a punch card, and this information record can be stored permanently, or if it is no longer needed as a temporary record, the blank paper can be removed and reused. .

The embodiment shown in FIG. 3 shows a case where information is handled three-dimensionally.

The plate C is circular, and each hole 4 represents information two-dimensionally by coordinates fixed to the plate C.

The disk C is fitted into the transparent plate holder 9 and rotated according to third-dimensional information.

That is, the information is expressed by three elements: the two coordinates of the hole 4 on the disk and the corner position of the disk C.

In this example, a map is written on the disk C, and each hole 4 represents a terminal or a crossing point, and when the area is crowded, a light scattering film is pasted on it.

The disk C is rotated by a clockwork T, and the angular position of the disk C represents the time.

In this way, it is possible to input traffic conditions in a certain area of the city at any given time.

A large number of photoelectric elements are arranged on the side surface of the holder 9, divided into two groups Px and Py.

Both groups are arranged spatially orthogonally and detect coordinates fixed in the space of the hole 4.

Therefore, the number of photoelectric elements in each group is much larger and densely arranged than when they are arranged in rows and columns as in the example of FIG.

Let the coordinates of an arbitrary point on the plate C fixed on the plate C be x, y in orthogonal coordinates with the origin at the center of the plate C, and let the coordinates fixed in that space be X, Y, and the X of the plate C at any time If the angle between the coordinate axis and the X coordinate axis is θ, then X=xCOSθ, Y=
ysinθ, where θ represents time.

So, conversely, from X, Y and θ, x = X, /cosθ
, y=Y/Sinθ.

10 is a circuit that performs the above calculation, and information on the angle θ is inputted from the clockwork T that rotates the plate C.

In FIG. 4, the board C is a blackboard, and the configuration is the same as the example in FIG. 2, and when it is desired to input information to the device, chalk is inserted into the hole 4.

Since the diameter of the hole 4 is larger than the thickness of the chalk, light entering through the gap between the hole 4 and the chalk is diffusely reflected by the chalk and enters the board C.

This device is used to input key points of a diagram or table drawn on a blackboard into an information processing device during a lecture or discussion.

In the present invention, the transparent plate 1 has the function of recording and retaining data, but it should be noted that it also has the meaning of an input device for a data reading device.

If a light pen is placed at an arbitrary position with only the reader without a transparent plate, the light from the light pen can be detected, but external light is also incident on each photoelectric plate of the reader. Therefore, it is difficult to distinguish and extract only the light detection signal of the light pen, and if you try to input without a transparent plate, you will need to prepare a dark room or shield the reading device from light, making the device extremely inconvenient to use. .

The cross section of plate C is not limited to the structure shown in Figure 1,
The holes drilled in the transparent plate 1 may have no taper, and the light-absorbing layer may be provided directly on the lower surface of the transparent plate 1.

Although the difference in the output level of the photoelectric element depending on the presence or absence of input information is reduced, it is easier to eliminate the light absorption layer on the back side.

The present invention has the above-described structure and is highly reliable because it does not include electrical contacts such as punch cards and contact brushes, and even when used as an input device such as a keyboard, it is highly reliable because there are no moving parts. In addition to being used as an input device, it can also be used to record information and input all the information in one movement, and can also be used as a temporary and permanent storage device for information, and can be used for temporary recording purposes. It has the advantage of being able to be used over and over again.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially enlarged cross-sectional view, FIG. 2 is a perspective view of a reading device, FIG. 3 is a plan view of another embodiment, and FIG. FIG. 7 is a plan view of another embodiment. 1...Transparent plate, 4...Information input hole, PX1 to Px5, P
y1 to Py4... photoelectric element, Px, Py... photoelectric element group.

Claims (1)

[Claims] 1. The above-mentioned reader, which is detachable from the reader and has a transparent plate with two-dimensional information input holes, and photoelectric elements attached to the transparent plate and arranged at positions facing the side edges of the plate. An information input/recording device comprising: