JPH01166348A - Information recording medium - Google Patents

Abstract

PURPOSE:To enable exact and rapid recording and reading of information by providing carrying control means for sure execution of fixing at the time of carrying or positioning at the time of recording and reading to at least a part of a circumferential edge part. CONSTITUTION:The carrying control means 11 for sure execution of the fixing or positioning of the information recording medium 10 with high accuracy at the time of carrying medium 10 in recording or reading device or of executing the information processing such as recording and reading are provided to the above-mentioned medium 10. The control means 11 are provided at the desired points in the circumferential edge part of the medium 10 as, for example, register pin holes and allow fixing of the medium 10 through the pinholes by erecting pins in the corresponding positions of a card carrying base. The sure carrying of the medium which is thin and is less rigid is executed by providing such control means 11. The recording and reading of the information are thus exactly and repidly executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an information recording medium on which optically detectable information can be thermally recorded.

[Background of the invention]

Visual information is transmitted by writing or printing letters, symbols, etc. on paper or other materials.On the other hand, with the development of information processing technology in recent years, the necessary information has been converted into digital data, and large amounts of information have been accumulated. and methods of processing have been established.

There is a close relationship between visual information and its digital information, and the required information is visual information - human power - digital processing = (transmission)
Visual information is transmitted through a system that outputs visual information, and human decision-making is mainly based on visual information. Visual information can be input using optical scanning means or OCR (Optica
lCharacter Reader) means,
As a more primitive method, visual information is once digitized and then manually inputted using the keys, or characters are manually inputted while directly reading the information. In this system, if digital information is visually output (hard copy) and then re-inputted at any location, it must go through the same system again, resulting in duplication of input means and labor-intensive. In order to solve this problem of increasing load, there is a method of using magnetic stripes arranged side by side on certain types of forms. In other words, all or part of the information is recorded on the magnetic stripe at the same time as characters are output on the form, and when processing this information, the magnetically recorded digital information is read by the magnetic stripe. , is used in systems that can quickly input recorded information. However, the recording capacity of this magnetic stripe is small, in practice it is about 10 characters and 1 inch, and usually only the minimum information necessary for processing is recorded.

Originally, when using magnetic recording, large-capacity data storage is possible, such as with magnetic disks and floppy disks, but magnetic stripes attached to paper etc. have physical problems such as contact with magnetic heads for recording and reading. There are many problems, and in order to maintain data reliability, it must be used under the above-mentioned recording capacity. Therefore, it is impossible to digitize and store all visual information having an amount of information greater than the recording capacity at the same time, which is insufficient for practical use. There is also a method of increasing storage capacity by arranging multiple rows of magnetic heads, such as those used in magnetic tape, and recording two-dimensionally, but in the case of magnetic stripes, physical The drawback is that it is impractical due to the large number of economic problems and the economic problems involved in overcoming them.

By the way, even if an information recording means with a large storage capacity is developed using a relatively simple method, on the other hand, it is difficult to make it function quickly and accurately (that is, to record and read information accurately). On the contrary, it is easy to predict that it will become difficult.

As a practical information recording medium, as the amount of information increases,
An important issue is recording and reading that information accurately and quickly.

[Summary of the invention]

The present invention has been made in view of the above points, and aims at the following points.

(b) To provide an information recording medium that can record information quickly, inexpensively, and with a relatively large recording capacity.

(b) To provide an information recording medium that can record and read information accurately and quickly.

In order to achieve the above object, an information recording medium according to the present invention is an information recording medium in which an information recording area made of a heat-sensitive recording material is formed on a base surface, and the information recording medium is fixed during conveyance of the medium or during recording/reading. [Embodiment] Fig. 1A shows a card-shaped information recording medium 10 according to the present invention.
It is a figure showing an example. As shown in FIG. 1A, in this example, bit-shaped digital information 2, for example, is recorded in an information recording area provided on a card-shaped base 2o. The digital information recording area is composed of a heat-sensitive recording material as described later, and the digital information 2 can be recorded by bit recording in only one row or multiple row bit recording in which multiple bits (generally byte units) are recorded in parallel. A read track line 3 or a sector line or the like is added as necessary. As the recording means, a thermal head having one or more electric heat generating elements is used, as will be described later. Is there an impact method other than the thermal recording method?
! It is possible to form digital information by a photographic method, an electrostatic recording method, an inkjet recording method, or the like.

For example, in the impact method, at a practical level, 0.2+a
Clear dots with a diameter of m can be printed, and in the case of an electrophotographic laser blinder, dots with a diameter of 0.1 mm can be formed. However, with regard to either method, the thermal recording method is superior in terms of device simplicity, economical price, and dot printing resolution. Further, the recorded digital information 2 can be read by using optical means, as will be described later, by reading the difference in density (difference in light amount) between each formed bit and the surrounding area.

In the case of the thermal recording method, the size of each bit dot recorded in the digital information recording area is 0.02 mm to 0.02 mm.
The diameter can be arbitrarily selected between 5+am diameter, and a direct coating method or a transfer method can be used to form the heat-sensitive material on the recording medium. The dot density of thermal heads used in thermal recording methods has reached 16 to 32 dots/IIIB, and in heads with 16 dot specifications, the dot spacing is 0.0.
625mm, and 0.0 for a 32-dot specification head.
31a++w. If the dots formed by this correspond to 1 bit, it is approximately 400 bpl (dots/inch) with a 16-dot specification head, and 3
A 2-dot specification head has approximately 800 bp+.

This bit formation ability is not much different from recording on a magnetic head using a magnetic head used in plastic cards and the like. In addition, the thermal head is often used as a line head in thermal printers, and its structure makes it easy to install multiple heating elements in parallel.If a line head with 8 dots arranged in parallel is used, 8 dots can be printed in a line. Since printing can be performed simultaneously, if 8 bits are 1 byte in one scan of the head, a head with 16 dots per inch specification will produce approximately 400 bytes (4
It is possible to print approximately 800 bytes (approximately 800 x 8 bits) with a 32-dot specification head.

In the information recording medium 10 shown in FIG. 1A, reference numeral 11 is used to securely and accurately fix or position the medium when the medium is transported through a recording or reading device or when performing information processing such as recording or reading. This is a conveyance control means.

In this example, the transport control means 11 is provided as a register bin hole at a desired location on the periphery of the medium.

In this case, for example, a bottle can be erected at a corresponding portion of the card carrier and the medium can be fixed in the bottle hole.

By providing the transport control means 11 as described above,
It is possible to accurately convey media that is thin and lacks rigidity. In this way, in order to accurately arrange data bits at predetermined positions on the medium, it is extremely important to provide the above-mentioned transport control means as a condition for rewriting and rereading information.

The data bit size of such media is 20 to 200
Considering the relatively large size of microns, high-precision control such as, for example, a conventional laser recording card is rather an overkill, and the above-mentioned simple means can also function satisfactorily.

It should be noted here that, for example, in the case of impact recording, a large number of recording needles in a line arrangement apply printing impact to the medium at high speed, or in the case of thermal recording,
The medium may be moved while applying appropriate contact pressure to the medium and rubbing against the surface of the medium. Therefore, in order to prevent such problems, it is necessary to transport the medium while sufficiently fixing it using the above-mentioned transport control means. is essential.

In addition to the above, there are other types of conveyance control means as follows. In FIG. 1B, as the transport control means 11, 2
This is an example in which two bottle holes are provided, and in this case, one bottle hole is oval and the other bottle hole is perfectly circular.

FIG. 1C shows an example in which bottle holes are formed at all four corners. No. 1A above.

The card carrier in the case of IB and IC diagrams is, for example, movable in two directions.

FIG. 1D is an example in which intermittent pin track holes are formed at both ends of the medium in the running direction as conveyance control means, as shown in the figure. Insert the pin truck into this and transport. In this case, for example, there is a hard base of the conveying device on the lower surface side of the printing section.

FIGS. 1E to 1G show examples in which optically detectable register marks are formed on a medium. In this case, the edge of the card is circumferentially held by a presser and can be transported as appropriate. The case of FIG. 1E is an example in which register marks are formed at the four corners of the medium, and the case in FIG. 1F is an example in which dot-line-shaped register marks are formed in the running direction of the medium. In these cases, these register marks are used to align the medium and finely adjust the parallelism, and to start reading and recording information. In the case of Fig. 1G, an optically detectable control mark is formed at a desired location on the medium. For example, the conveyance of the medium can be accurately controlled by controlling the pulse motor of the conveying device by adjusting the pitch of the medium to be conveyed to match the minute mark.

Next, the heat-sensitive material of the information recording area will be explained.

The heat-sensitive material for the information recording area used in the medium of the present invention is not particularly limited, and may be a leuco dye-based or metal complex compound-based material used in general heat-sensitive recording paper mixed with a suitable binder. can be used. Further, leuco dye-based heat-sensitive materials, diazo-based heat-sensitive materials, metal thin films, ink transfer films used in heat-sensitive transfer methods, etc. can be used. The leuco-based heat-sensitive material can be obtained by applying it to a predetermined position on a substrate in a desired shape. Additionally, these heat-sensitive materials are generally inexpensive and may be applied to the entire surface of the substrate. In the case of leuco-based heat-sensitive materials, it is usually possible to use heads with up to 16 dots, but it is possible to use leuco-based heat-sensitive materials for heads with up to 16 dots, but by applying a calendar treatment or using a film instead of paper as a support to give surface smoothness, it is possible to A diazo-based heat-sensitive material, which can also be used in a dot type head, can also be obtained by applying it to a predetermined position on a substrate. For example, in this case, by using a diazo compound and a coupler as materials, a particle-free coating can be obtained, making it easy to obtain surface smoothness, and because there is little heat diffusion due to particles, it is suitable for heads that use high-density dots. ing. Furthermore, after recording, it can be fixed with light (near ultraviolet light), so it can be stored stably.

Further, when using a metal thin film used for laser discs, laser cards, etc., the film is formed by partial vapor deposition after applying a base material to a predetermined position of the recording medium as needed. Materials include tellurium and tellurium alloy materials, bismuth materials, which are already used in writable optical discs.
A tin-based material or the like can be used. However, in the case of tellurium, tellurium alloy materials, and bismuth materials, heat must be directly transferred from the heating element to the thin film layer, so the protective layer provided on the thin film layer needs to be as thin as possible. Therefore, it is susceptible to environmental conditions, has a low shelf life, and is a hazardous substance. Therefore, it is necessary to take measures to eliminate this drawback. On the other hand, when a tin-based material is used, which is the most preferred metal thin film because it is stable in a normal environment, harmless, and inexpensive, the metal thin film layer is thermally destroyed during recording to form bits. Reading is done by reading the difference between the metallic luster and the light reflectance of the recording medium's base material, but in order to obtain a large difference in light intensity, a base material is provided and colored in black, red, blue, etc. Accordingly, the reliability of reading can be improved.

The ink transfer film used for thermal transfer recording is a colored wax layer formed on a polyester film.
The polyester film is in contact with the heating element of the head, and the colored wax layer is in contact with the recording paper. Heat from the head's thermal element is transferred through the film to the wax, causing the dye in the colored wax to melt or sublimate and adhere to the paper. In this case, the thickness of the film affects the thermal sensitivity and dot resolution, so when using an ink transfer film that uses as thin a film as possible, about 3 to 6 μm thick, the dot density is 8 dots/screen or less. Unlike a recording medium directly coated with a heat-sensitive recording material, the advantage is that a recording medium of any material and shape, such as untreated paper, can be used.

The following method can be used to manufacture a recording medium having a digital information recording area as described above.

Leuco dye-based, diazo compound-based, and other coating-type recording materials are applied to predetermined portions of a substrate to form an information recording medium. Further, the metal thin film can be formed by partial vapor deposition after applying a base material to a part of the substrate as necessary.

The metal thin film layer forms bits that are thermally destroyed, but if the base material is paper, for example, recorded information will be read based on the difference in reflectance between the gloss of the metal layer and the paper. In this case, it is not possible to obtain a large difference in light intensity, so the base material is black.

By coloring the recording medium red, blue, etc., the maximum amount of light difference can be ensured during reading, and the reliability of the recording medium can be improved.

A method of transferring a heat-sensitive recording material onto a substrate surface is also effective. For example, in addition to coating or vapor-depositing a heat-sensitive recording material or a thin metal film directly onto a recording member, it is also possible to apply a heat-sensitive recording material or vapor-deposit a thin metal film onto a peelable film support, and then apply an adhesive to the outermost layer. A desired recording medium can also be obtained by using a film slit to a required width, adhering it to a predetermined position on a substrate, and then peeling and removing the film support. According to this method,
As mentioned above, without performing complicated operations such as partial coating or vapor deposition on the substrate, it is possible to slit the entire surface of the film support and simply transfer it onto the substrate. Therefore, a cheaper recording medium can be obtained.

As described above, a heat-sensitive recording section is provided on at least a part of the base,
All or part of visual information, related information other than visual information, necessary layout data such as data processing information, and information such as figures and symbols can also be recorded in digital code. In addition, the substrate can be made of a material such as paper, plastic film, glass, metal, ceramic, etc. that allows the recording head to work effectively, and as long as it can obtain a sufficiently readable bit pattern during reading. good.

Furthermore, these substrates may themselves be card-shaped, in which case they become card-shaped information recording media.

When visual information and its digital information are to be recorded on the same recording medium, the following methods can be selected as appropriate.

The recording medium itself may be coated with an inexpensive leuco thermosensitive material or the like over the entire surface of the recording member, thereby forming a color that allows visual information and digital information to be recorded by using the same thermosensitive head. Furthermore, if a metal thin film or the like is used, a similar method would be expensive, so for example, a thermal transfer method may be used for the visual information section. Furthermore, when the recording material is paper, the above-mentioned processing is applied only to the digital information section, a thermal recording head is used to record digital information, and another printing method is used to record visual information. Can be done. To record visual information and digital information, there are two methods: to record visual information and digital information simultaneously, or to record visual information and digital information separately.

When visual information and digital information are recorded simultaneously, as shown in FIG. 9, characters are made visible in visual information recording area A, and at the same time, the digital information of the characters is recorded in digital information recording area B. In a serial printer that records one character at a time, while the character print head prints one character, another digital recording head sequentially records that character code (consisting of 1 or 2 bytes) onto the digital recording medium. I will try to record it. Also,
In a printer using a line head, signals applied to the line head are sequentially digitally recorded at the same time as printing is performed. When printing visual information and digital information separately, for example, first record one page's worth of visual information in the visual information recording area A, and then record that one page's worth of digital information in the digital information recording area. Make sure to record in area B. This method uses a printer equipped with a return mechanism, returns the recording medium to its original position after recording visual information, and records digital information using the same head or another head dedicated to digital information; There is a method in which a printer for visual information recording and a printer exclusively for digital recording are provided, and after visual information is recorded by the printer for visual information recording, digital information is recorded by a printer exclusively for digital recording.

The former method uses a small and simple device, and the latter method has the feature that recording can be performed in a short time when continuous recording is performed on a plurality of information recording media.

In the case of the example shown in FIG. 9, unlike the case of FIG. 1, the shape of the medium is a sheet, and an optically detectable register mark in the form of a bit line, for example, is provided on the side as the conveyance control means 11. It is formed. In this embodiment as well, the medium may have a card shape.

The mode of digital information recording is to record digital signal bits, but in order to perform optical reading more accurately, auxiliary recording may be performed separately from the conveyance control means. Track line 3 in FIGS. 1 and 9 is an example of such auxiliary recording. For example, it is necessary to prevent errors from occurring due to slight bends or fluctuations during advancement when the recording medium is fed into a recording or reading device. In the case of a single bit array on a line in the direction of travel, it is possible to create a device structure that allows a relatively large tolerance, but in the case of parallel recording of multiple bits, it is difficult to set the track that is the reference for reading. is necessary. That is,
A dot or line is placed for each predetermined number of parallel bits, and the meaning of the parallel bits is determined based on this.

For this track, a thermal head equipped with a dedicated thermal element for track recording may be used, or a predetermined portion of a thermal head having a sufficient number of thermal elements may be used for this purpose. It is also possible to form a track and use that track as a reference for writing and reading. Similarly, when information is divided into sectors (for example, one line at a time), recording corresponding to the division signal may be performed, or it may be formed in advance. In addition, in order to correct random errors or burst errors in digital data caused by missing bits, printing defects, insufficient density, etc. during thermal printing, we have added a simple parity check, correction by interleaving, or if necessary. Accordingly, a method of adding a CRC code may also be considered, and it is necessary to select an appropriate method depending on the recording density and reliability of data.

When reading the recorded information, an optical reader equipped with an optical functional element and described later is used. The information read from the recording medium is transferred to another filing section, information processing section, etc., and processed. Additionally, as a stand-alone device, the above-mentioned information recording printer may be equipped with a reading section, and the read information may be used to output the content as a copy, or the content may be re-edited by providing the printer with intellectual functions. You may also output it after

Furthermore, FIGS. 2 and 3 (A) to (E) show when the digital information 2 has an inclination indicated by the skinny angle θ with respect to the data scanning direction of the reading device as shown in FIG. 2 (A). FIG. 3 is a diagram showing an example of a method of reading digital information using track 3. For example, the shape of data bit 2 is at least 100μ
m, and the data width is about 41, the permissible value of the skinny angle θ is within 2 degrees, and if the skew angle θ exceeds this permissible value, the following correction is performed.

That is, when scanning as shown in 111 to g4 in FIG. 2 is performed between the reading scan start line L1 and the reading scan end line L2, pulse signals as shown in FIGS. 3(A) to 3(D) are generated. can get. If the thickness of the track 3 is made sufficiently larger than the data bit 2, a track pulse DT larger than the pulse DP caused by the dot 2 is obtained first, and this track pulse DP is detected to read the track position.

For each scan line, the distance from the pre-fixed reading scan start line L1 is measured by counting the number of pulses of the reference clock CL shown in FIG. 3 (E), and the skew angle is determined by comparing each calculated value. In other words, in the example of FIG. 2, the distance (time) from the start line L1 of the scanning line 11 to the track 3 is T1, the next scanning line g2 is T2, and the next scanning line g3 is T3. .Since the line g4 changes like T4, this can be determined by the number of strokes of the reference clock CL.

The scanned digital data is temporarily stored in memory and converted into correct data using the calculated skew angle θ.

In addition, as mentioned above, in order to correct digital random errors or burst errors caused by missing bits or insufficient density during thermal printing, a simple parity check 2 as shown in Figure 4 is performed to check the horizontal parity. P.H.
and vertical parity PV. Furthermore, as shown in FIG. 5, it is also possible to divide the digital data into sectors for each line of visual information 1, for example. in this case,
One sector consists of a recognition code part and a data part, each starting with a synchronization bit, a bit representing the start of data, followed by a recognition code, followed by a bit representing the end of data, and finally a vertical parity. ing.

By dividing digital information into sectors in this way,
Parity checks can be used effectively, and furthermore, it is advantageous in search operations when handling arbitrary parts of visual records.

Next, specific embodiments of the information recording medium and information recording/reading of the present invention will be described.

(1) Recording example using leuco dye A commercially available leuco dye-based thermal paper that utilizes the color-forming reaction between a colorless dye such as crystal violet lactone and an acidic substance such as bisphenol is used, and a transport control means is provided at a predetermined portion of the substrate. , applied energy IW with a thin film thermal head of 16 pieces/ll11.

When digital data was printed in addition to visual records of characters, patterns, etc. under the conditions of an energization cycle of 1.8 m5 ec, good bit patterns with a shape of 0.05 mm or more and as clear as the visual records were obtained. This bit pattern could be read by a CCD line sensor.

(2) Recording example using diazo A filler primer layer was formed on the base paper, and a diazo compound layer (
A mixed layer of diazo compound, salt vinyl acetate, and coupler is gravure coated, and a base layer (main components di-0-tolylguanidine, vinyltoluene, butadiene) is formed on top of the gravure coating, and styrene-maleic acid is further added to support the heat-sensitive coloring layer. A binder that becomes a copolymer is provided, followed by a solvent shielding layer (cellulose acetate propionate) and a protective layer (polymethyl methacrylate).

Teflon, polyethylene wax) was formed, a conveyance control means was provided at a predetermined portion of the substrate, and printing was performed using a recording medium under the conditions described in (1) above. get a good bit pattern,
Also, like the previous example, it was possible to read.

(3) Recording example using metal thin film A dye to be the base color is coated or printed on a polyester sheet with a thickness of 0.19+U, which is the card base, and an adhesive is applied on top of the dye, followed by vacuum evaporation. By Sn
A low melting point metal was formed.

Next, a colored layer was gravure coated with a colored dye to form a colored layer on the vapor deposited layer, and a protective layer was further provided to produce a medium. 6th
As shown in the figure, the base of a thermosensitive recording medium is composed of the protective layer (cellulose acetate-based butyral-based) / colored layer (salt-vinyl acetate-based) / metallized film layer (Sn) / adhesive layer (acrylic-based) / base paper. When printing was carried out under the same conditions as in (1) above using a device equipped with a conveyance control means in a predetermined portion of the paper, in addition to visual recording, a bit pattern of 0.05 mm or more with the desired density was obtained. It was possible to read as in the previous example.

(4) Recording agent using transfer ribbon Coloring agent (pigment, 20 parts of carbon black), binder agent (carnauba wax 20 parts, ester wax 40 parts), softener (oil 20 parts) ), additives (antistatic agent, etc. 10 parts) using a transfer film gravure-coated with a heat-melting ink to a thickness of 8μ, the above (1
) was printed under the same conditions. The material to be transferred is art paper.

As a result of selecting bond paper, etc., in addition to visual records, a bit pattern of 0.1 dragon or more was obtained, but variations in shape and self-missing were observed. However, since the conveyance control means was provided at a predetermined portion of the base, there was no problem in reading.

(5) Production of information recording medium by transfer method In the case of using a metal thin film, thermal transfer tapes capable of being transferred to a base paper were produced as described in (1) to (4) below.

(2) A release agent having the following composition was gravure coated onto polyethylene terephthalate having a thickness of 25μ to form a release layer having a thickness of 1μ.

(Composition of release agent) Cellulose acetate resin (manufactured by Dainippon Celluloid Co., Ltd.)...
5 parts Methylolmelamine thermosetting resin (manufactured by Nippon Carbide Co., Ltd.) 1 part Methyl ethyl ketone 50 parts Methyl alcohol 25 parts Toluene
...25 parts ■ A protective layer having a thickness of 1 μm was provided on the release layer by gravure coating using a protective layer agent having the following composition.

(Composition of protective layer agent) Polyvinyl butyral resin (Elex JBX manufactured by Block Chemical Co., Ltd.)...10 parts Moisture-curing polyurethane resin (Orestar M95 manufactured by Mitsui Toatsu)
-5OA) ... 1 part methyl ethyl ketone
... 3 parts toluene
... Tripartite ethyl acetate
... 3 parts ■ A colored layer with a thickness of 2.5 μm was provided on the protective layer by gravure coating using a colored paint having the following composition.

(Composition of colored paint) Pigment: 10 parts Partially saponified vinyl chloride/vinyl acetate copolymer resin (Union Carbide Co., Ltd.'s "Vinyrite VAGHJ")...20 parts Isocyanate curing agent (Shinichi Yakuhin Kogyo Co., Ltd. "Takenate D11ONJ") ) -3N methyl ethyl ketone
...40 parts toluene
...40 parts ethyl acetate
...40 parts■ Then approximately 0 parts on the colored layer
．． An adhesive layer with a thickness of about 5 μm was provided. This is to improve the adhesion between the vapor deposited layer and the colored layer.

(Composition of adhesive) Acrylic resin (manufactured by Toshi [Kotax LK-761J
...100 parts Polyglycidyl ether (Dinacol EX-612J manufactured by Toshi) ...4 parts Methyl ethyl ketone ...450 parts Toluene ...450 parts ■ Film thickness measurement using a crystal oscillator of tin by vacuum evaporation method The metal film was deposited to a thickness of 1,000 yen using a method to form a metal thin film capable of heat-sensitive recording.

(2) After forming the tin metal thin film layer, an adhesive layer having a thickness of about 0.5 μm was provided by gravure coating using an adhesive having the composition shown below. This is to improve the adhesion between the vapor deposited layer and the heat shift layer described below.

(Adhesive composition) 2 on vinyl roll (manufactured by Showa Kobunshi) ... 100 parts isocyanate-based curing agent ("Takene", manufactured by Shikinichi Yakuhin Kogyo) DI
IONJ) ... 1 part ethyl acetate
...200 parts (2) Next, a heat sealing agent having the following composition was gravure coated to form a 2 μm thick heat sealing layer on the adhesive layer (2).

(Adhesive composition) Vinyl chloride/vinyl acetate copolymer resin (Denka Lac 721J manufactured by Denki Kagaku Co., Ltd.) 1 part acrylic resin 2 parts toluene 8 parts ethyl acetate 8 parts One part of the transfer tape prepared in the same manner was slit to a width of 0.7 mm.
Thermal transfer was carried out onto two types of cards: a 6 mm vinyl chloride card and a 0.26 mm polyester card. The film support was peeled off to obtain the desired information recording medium.

Furthermore, the information recording medium of the present invention was obtained by forming a transport control means on a predetermined portion of the base.

Finally, an example of an information reading device for the information recording medium 10 of the present invention will be described with reference to FIG.

First, the information recording medium 70 is positioned at a predetermined position by the X-Y stage controller 79 and transferred for reading. A sub-COD sensor 7 for optically reading information is arranged above the information recording medium 70, and the read information is manually inputted to a read scanning line selection circuit 73 via a display monitor 72, and the selected read scan is selected. The line information is input to a binarization circuit 74 and binarized. 2
The digitized information is input to the synchroscope 75 and displayed, and is also input to the data detection/data reading circuit 76, and the read serial information is converted into parallel data by the serial-parallel conversion circuit 77 and then stored in the data memory 78. recorded in

Furthermore, the control system 80 transports the information recording medium 70 via the XY stage controller 79 based on the reading result of the data detection/data reading circuit 76 .

FIG. 8 shows an example of digital information 2, in which bit-shaped rectangular dots are converted into bit information bo to b7 and digital information by the COD sensor 7 sub-reading and binarization circuit 14.

〔Effect of the invention〕

As described above, according to the present invention, since optically detectable digital information is thermally recorded, it is possible to quickly and inexpensively record information with a large recording capacity, which is an excellent effect. have. Furthermore, the information recording medium of the present invention has transport control means formed in the medium to ensure fixation during transport and positioning during recording/reading, making it suitable for transporting thin and non-rigid media. It also has an excellent effect in improving the accuracy of recording and reproducing information.

Therefore, the present invention can be used in a wide range of applications, particularly for plastic cards such as private cards, general cards, office documents, slips, card-like data recording media, and tape-like data media that can be carried or mailed. Can be done.

[Brief explanation of the drawing]

1A to 1G are plan views each showing an example of the information recording medium of the present invention, FIGS. 2 and 3 are diagrams showing a method of correcting digital information using tracks, and FIG. 4 is a plan view showing an example of the information recording medium of the present invention. A diagram showing an example of the configuration of a digital information section using
FIG. 5 is a diagram showing an example of the configuration of a digital information section divided into sectors, FIG. 6 is a diagram showing an example of a cross section of a recording medium, and FIG. 7 is a block diagram showing an example of an information reading device for an information recording medium.
FIG. 8 is a diagram showing an example of digital information, and FIG. 9 is a plan view showing an example of a case where visual information and digital information are recorded on the same medium. 1...Visual information, 2...Digital information, 3...
Track, 10... Information recording medium, 11... Transport control means. Applicant's agent: Sato-Yuu Drawings of Jyo 3 (no support for steam) Fig. 1A Fig. 1B Fig. 1C Fig. 1D Fig. 1E Fig. 1F Fig. 1G Fig. 2 Fig. 3 Fig. 6 7ζ Procedural amendment February G, 1986

Claims (1)

[Claims] 1. An information recording medium in which an information recording area made of a heat-sensitive recording material is formed on a substrate surface, wherein at least a part of the peripheral edge of the information recording medium is fixed or recorded during transportation. - An information recording medium characterized by being provided with a conveyance control means for ensuring positioning during reading. 2. The information recording medium according to claim 1, wherein the information recording medium is card-shaped. 3. The information recording medium according to claim 1, wherein the conveyance control means comprises register pin holes. 4. The information recording medium according to claim 1, wherein the conveyance control means comprises a pin track hole. 5. The information recording medium according to claim 1, wherein the transport control means comprises an optically detectable register mark.