JPS63315299A - Optical information record medium - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical information recording medium, and particularly to an optical information recording medium suitable for being mailed as a regular mail item.

[Conventional technology]

Catalog Sales 9 As a means of transmitting information for qualification education, methods such as mailing in parcels or sealed letters have been used.

On the other hand, as an information recording/reproducing device, there is a method of writing code information on an optical card and reproducing it.

[Problem that the invention seeks to solve]

With the above-mentioned conventional technology, when sending a large amount of information to a large number of destinations, it takes a lot of time and effort to pack it.

There are disadvantages such as high shipping costs.

Further, in the case of optical cards, it is difficult to reproduce them in large quantities in a short period of time, and furthermore, since they are not handled as regular mail, they have the disadvantage of requiring packaging. Moreover, II
Since only the information of I II LL O11 is recorded, there is a drawback that the information recording efficiency is low.

An object of the present invention is to provide an optical information recording medium with low mailing cost and high information recording efficiency.

[Means for solving problems]

The above purpose is achieved by recording code information on postcard-sized mail by printing it in color and recording the information, and on the receiving side, this color information and code information are reproduced to obtain the necessary information. Ru.

[Effect]

Postcards, which are treated as regular mail items, are printed with code information that has been converted into a binary form using minute dots, and these minute dots are also colored.

As a result, since the information includes both code and color information, the amount of information per unit area increases, making it possible to send and receive a large amount of information.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the shape of an optical postcard according to the present invention as an information transmission medium. a, b, t of this shape and dimension
is the size of a standard mail item, with an address printed on the 8th side that the delivery person can read, and the necessary information printed in a color code on the A side.

In the embodiment of the present invention, it is assumed that information is recorded and reproduced on this A side.

FIG. 2 shows an example of information recorded on side A. The circle in the figure indicates 1 bit, which is divided into red (R), green (G), and blue (B) using color ink, and is printed at a fine pitch P (for example, about 10 μm). The broken line ・;]:・ is blank. Here, one code consists of 4 bits. This code is
Color R, G.

In combination with B, it becomes one piece of information such as characters 9 images, sounds, etc. Note that the number of bits constituting the code C may be changed depending on the amount of information.

FIG. 3 shows another example of a pattern indicating information, in which one piece of information C is composed of R, G, B bit marks, and 4 bits of black and white, a total of 5 dots. In this case as well, the color pits and the following code make it possible to determine, for example, whether the information is text or voice.

FIG. 4 is another example of a pattern indicating information. In this embodiment, there is a color bit only at the beginning of the line, and what follows is 4 bits of code information. In this case, as in FIG. 3, the type of information that follows can be determined. Further, this color pit can also be used as an information index or a tracking marker during playback. In other words, in the playback device, this color pitch I
It is also possible to add a function that allows reproducing only necessary information, such as cueing, by using the information in -.

Furthermore, if this color pit is made large enough to be visible, it becomes possible to distinguish it at a glance when searching for information.

Next, a specific example of a recording/reproducing apparatus for these patterns will be explained.

FIG. 5 is an example of an information recording method according to the present invention.

In the figure, 11. ] 1 and 13 are transfer drums, each having a structure capable of selectively transferring R, G, and B dyes. If the information medium 15 of the present invention is placed on the belt 14 and moved to the left in the figure, the second
The patterns shown in FIGS. 4 to 4 are printed, and the same pattern can be manufactured in large quantities. This method can be easily implemented using conventional transfer techniques.

On the other hand, FIG. 6 shows an embodiment of the reproducing apparatus.

A light source from a light source 22 is focused by a condensing lens 23 onto a bit pattern 21 printed on a medium 15 according to the present invention, and this reflected light is incident on a spectroscope 24 to distinguish R, G of color pits. , B signals are distinguished and converted into electrical signals by the detector 25. The medium 15 moves sequentially after being read and stops after the information output is completed. Reference numeral 26 denotes a reproduction processing device, which reproduces the signal as a video signal or an audio signal, and displays the signal on the display 27 or outputs the audio from the speaker 28.

As described above, it becomes possible to record and reproduce information on the medium 15.

In the description of these embodiments, a pattern with two gradations of on/off was formed in order to ensure the reproduction of information, but the color pit and code patterns may have gradation of shading. Also, R,G.

Colors other than the three primary colors of B may be used.

Furthermore, although the shape of the medium is rectangular as shown in Figure 1, for example, as shown in Figure 7, the recording section is made into a disk shape, and when mailed, it is shaped like a regular mail piece and sent to a playback device. At the time of installation, the portion indicated by the broken line may be cut out to form a disk shape.

〔Effect of the invention〕

According to the present invention, since color information can be added in addition to code information, an effect of increasing information density can be obtained.

[Brief explanation of drawings]

Figure 1 is a diagram showing the dimensions and shape of an optical information medium, Figure 2, Figure 3, and Figure 4 are diagrams of an example of an information recording pattern, Figure 5 is an illustration of an information pattern recording device, and Figure 6 is a reproduction diagram. The configuration diagram of the apparatus, FIG. 7, is a diagram of a modified example of the optical information medium. 15... Optical information medium, R, G, B... Color pick 4 figure = Figure S + B 12 l1 15 --- The 1 whole 15 --- 4 忰 28 --- S L 2° -／ノ

Claims (1)

[Scope of Claims] 1. A recording medium in which a bit pattern is recorded by printing and information is transmitted using the bit pattern, characterized in that the bit pattern is colored or has a mixture of colored parts and achromatic parts. Optical information recording medium. 2. An optical information recording medium according to claim 1, characterized in that a colored portion of the bit pattern is used as an index marker. 3. An optical information recording medium according to claim 1, characterized in that a colored portion of the bit pattern is used as a tracking marker during reproduction. 4. The optical information recording medium according to claim 1, wherein the shape of the recording medium is such that it can be mailed within the range of standard mail.