JP2658269B2 - Optical sheet and optical sheet reader - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to an optical sheet having a data recording section composed of a plurality of linear data tracks and recording the progress of data reading, and this optical sheet. And an optical sheet reader that reads data based on the difference in the amount of reflected light or the amount of transmitted light.

[Prior Art] Conventionally, various types of recording media from which data can be optically read are known. In particular, in the field of discs, read-only discs, write-once discs, and rewritable discs have been developed, and read-only discs and write-once discs have been put to practical use.

On the other hand, recently, an optical sheet, which is a card-shaped optical recording medium, is known, and the optical sheet is irradiated with light, and data is read by an optical sheet reader based on a difference in reflected light amount or transmitted light amount. There has been proposed a device in which an image or the like is displayed on a personal computer or a display connected to a sheet reading device.

[Problems to be Solved by the Invention] However, in such a conventional optical sheet, the progress of data reading of the optical sheet is stored in the RAM of the optical sheet reader. If you read the data of another light sheet after storing it, the storage of the progress will be erased, and when you read the data again, it will be read again from the data already read by the previous operation. Problem.

Means for Solving the Problems The present invention has been made in view of such conventional problems, and has a rectangular plate shape, and is moved in a predetermined direction so that data in a data recording unit can be read. In the data recording section, a plurality of linear data tracks along a direction orthogonal to the moving direction are formed in parallel, and a progress storage section along the moving direction is formed beside the data recording section. It is characterized in that it is a light sheet.

Further, the progress status storage section can be formed of a heat sensitive agent.

Further, the progress storage unit may be formed of a magnetic material.

On the other hand, the data recording unit of the optical sheet, in an optical sheet reading device that irradiates light and reads data based on the difference in the amount of reflected light or the amount of transmitted light, irradiating means for irradiating the data recording unit of the optical sheet with light, An optical fiber on which reflected light or transmitted light is incident, photoelectric conversion means for converting light from the optical fiber into an electric signal, recording means for recording the progress position in the progress storage section of the optical sheet, and a recording position. An optical sheet reader having reading means is provided.

Further, the recording means for recording the progress position in the progress status storage section may be a recording / erasing magnetic head capable of magnetic recording and capable of magnetic erasure.

[Operation] According to the optical sheet of the present invention, by forming the progress status storage section, the progress status can be stored in the optical sheet itself, and the progress status data stored in the RAM is erased as in the related art. Even if the light sheet is used again, the traveling position can be immediately grasped.

Also, if the progress storage unit is formed of a magnetic material, the progress can be recorded or erased,
The light sheet can be used any number of times.

Further, to read the data of the optical sheet using the optical sheet reader according to claim (4), the following is performed.

That is, the optical sheet on which the data recording section composed of a plurality of linear data tracks is formed is set and moved to the optical sheet reader. Then, the data recording section of the optical sheet is irradiated with light by the irradiating means. Light reflected or transmitted from the optical sheet enters through an optical fiber, and an optical signal based on a difference in light amount is converted into an electric signal by a photoelectric conversion unit. Then, the electric signal is output and the data is read.

In this case, the data is sequentially read according to the movement of the light sheet, and in accordance with the progress of the reading,
The current traveling position is recorded by the recording means in the progress recording section of the optical sheet.

When the reading is completed once and the optical sheet is inserted into the apparatus again for reading, the progress status position is immediately grasped by reading the progress storage unit of the optical sheet by the reading means, and from this position. Data in the data recording section is read in the same manner as described above.

[Examples] Hereinafter, the present invention will be described based on examples.

 FIG. 1 is a diagram showing a first embodiment of the present invention.

In the drawing, reference numeral 1 denotes an optical sheet from which data is read. This optical sheet 1 is a paper product, for example, has a card shape of 100 × 250 mm and a thickness of 1 mm or less. While the data recording section 1a for teaching materials is printed on the front surface of the optical sheet 1, the display for teaching materials is drawn on the back surface. Further, on the side of the data recording section 1a of the optical sheet 1, a progress storage section 1b made of a magnetic material is printed along the moving direction of the optical sheet 1b. This data storage unit 1a
Is formed from a plurality of linear data tracks (dots of 0.2 mm square) on which data is recorded by the reflective and non-reflective parts. The storage capacity is approximately 70 kilobytes when unformatted and approximately 48 kilobytes when formatted. is there. Of course, the light sheet 1 can be of a transmission type.

The optical sheet reader that reads the optical sheet 1 is not shown, and performs two pairs of guide rollers 2 that sandwich the optical sheet 1 from above and below and guides the optical sheet 1 in a direction perpendicular to the traveling direction (the direction of arrow A). A lateral guide is provided. The guide roller 2 includes an optical sheet 1.
Is provided. Further, an illumination light source 3 as an irradiating means is provided above the inserted optical sheet 1, and a number of optical fibers 6 on which light reflected from the optical sheet data recording section 1b is incident are arranged. The optical fiber 6 has one end 6a on the optical sheet 1 side.
Are arranged in a straight line along the data track. About five optical fibers 6 are provided between 1 mm. At the other end 6b of the optical fiber 6,
They are arranged along the circumference.

The motor 7 faces the other end 6b of the optical fiber.
The rotation member 8 rotated by is provided. The rotating member 8 includes a disk portion 8a and a brush portion 8b provided integrally with the disk portion 8a. In this disk part 8a,
A total of three phototransistors 9 are arranged at intervals of 120 °, and the phototransistor 9 converts an optical signal from the optical fiber 1 into an electric signal.

Further, a digital computer 10, a speech synthesis LSI 11, a low frequency amplifier circuit 12, and a speaker 13 are connected to the brush portion 8b of the rotating member 8.

On the other hand, a thermal head 14 as recording means is disposed at a corresponding position on the progress storage unit 1b of the optical sheet 1, and this thermal head 14 is a thermal head drive circuit 15
Is connected to the digital computer 10 via the. Further, an optical fiber 16 as reading means is provided at a position corresponding to the progress status storage section 1b, and the optical fiber 16 is connected to the digital computer 10 via a phototransistor 17.

Next, the operation of the optical sheet reader having the above configuration will be described.

First, when the light sheet 1 is guided to the guide roller 2 and the lateral guide portion and inserted into a predetermined position, the light sheet 1 is moved in the direction of arrow A by the driving force of the motor 3.

Along with this movement, the data recording section 1a of the optical sheet 1 is illuminated by the illumination light source 5, and the reflected light from the data recording section 1a enters from one end 6a of the optical fiber 6 and exits from the other end 6b. Become.

In this case, the rotating member 8 is rotated by the motor 7, and the light from the optical fiber 6 is incident by the three phototransistors 9 and converted into an electric signal. The rotation speed of the rotating member 8 is set to a constant relationship with the transport speed of the optical sheet 1 so that the line data of the optical sheet 1 can be read.

Next, the converted electric signal passes through the brush unit 8b,
Speech synthesis after digital processing by digital computer 10
The LSI 11 is driven, and data is output from the speaker 13 as sound through the low-frequency amplifier circuit 12.

On the other hand, with the progress of the optical sheet 1, the thermal head 14 is driven by the thermal head drive circuit 15, and the progress storage unit 1b is turned black.

When the reading of the light sheet 1 is completed on the way, and the light sheet 1 is used again, the light sheet 1 is inserted into the apparatus in the same manner as described above.
Then, the reflected light from the progress storage unit 1b enters the optical fiber 16 opposed thereto, is converted into an electric signal by the phototransistor 17, and is input to the digital computer 10. Thereby, the traveling position is easily confirmed by reading the blackened portion. Therefore, the data of the data recording section 1a in the blackened portion is not read, and the data is read from the non-blackened portion in the same manner as described above.

In this way, by storing the progress in the light sheet 1 itself, even if the data of the progress stored in the RAM is erased as in the related art, when the light sheet 1 is used again, the previous light sheet is used. The data read by the operation is skipped, and the unknown data is immediately read.

FIG. 2 is a diagram showing a second embodiment of the present invention.

The progress storage unit 1b of the optical sheet 1 of this embodiment is made of a magnetic material, and is magnetically recordable and magnetically erasable at a position corresponding to the progress storage unit 1b. Magnetic head 18 for reproduction and reproduction magnetic head for reproduction
19 are arranged.

The recording / erasing magnetic head 18 has an AC bias.
20 and a recording amplifier 21 are connected, and these are switched circuit 22
Is connected to the digital computer 10 via the. further,
A reproducing amplifier 23 is connected to the reproducing magnetic head 19, and the reproducing amplifier 23 is connected to the switching circuit 22. In addition, the digital computer 10 is connected to a switch 24 that supports recording / erasing of the progress position. The digital computer 10 has a speech synthesis LS as in the first embodiment.
I11, a low frequency amplifier circuit 12, and a speaker 13 are connected.

According to this configuration, when recording the progress of the program, the switch 24 is operated to input a signal to the digital computer 10. Then, from this digital computer 10,
A signal is sent to the recording / erasing magnetic head 18 via the switching circuit 22 and the recording amplifier 23, and the progress position is magnetically recorded in the progress storage unit 1b.

When the data of the optical sheet 1 is read again, the recording at the above-mentioned progress position is reproduced through the reproducing magnetic head 19 and the reproducing amplifier 23, and the data of the data recording section 1a is read from this position. Will be started.

And if you want to delete the progress record,
After inputting the switch 24, the optical sheet 1 is inserted into the apparatus. Then, AC bias 20, magnetic head for recording / erasing
The memory will be erased via 18.

By erasing in this manner, the optical sheet 1 can be used any number of times.

The other configuration and operation are the same as those of the first embodiment, and the description is omitted.

If the optical sheet 1 is made larger than a conventional cash card or the like, it is difficult to roughly handle the optical sheet 1 and it is difficult for scratches, fingerprints, and the like to be attached, and the read data rarely has an adverse effect.

[Effects of the Invention] As described above, according to the present invention, by forming the progress status storage unit, the progress status can be stored in the optical sheet itself. Even if the situation data is deleted, when using the light sheet again, it is possible to grasp the progress position,
It can be read immediately from unknown data. Also,
If the progress storage section is made of a magnetic material, the progress can be recorded or erased, so that there is a practically useful effect that the optical sheet can be used any number of times.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of an optical sheet and an optical sheet reader showing a first embodiment of the present invention, and FIG. 2 is a schematic diagram corresponding to FIG. 1 showing a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Optical sheet 1a ... Data recording part 1b ... Progress storage part 5 ... Illumination light source (illumination means) 6 ... Optical fiber 9 ... Phototransistor (photoelectric conversion means) 14 ... Thermal head (recording means) 16: Optical fiber (reading means) 18: Magnetic head for recording / erasing (recording means) 19: Magnetic head for reproduction (reading means)

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Susumu Takahashi 1-5-1 Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd. (72) Inventor Tsutomu Kawakami 1-1-5-1 Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd. (56) References JP-A-63-117326 (JP, A) JP-A-1-166348 (JP, A) JP-A-63-98498 (JP, A)

Claims (5)

(57) [Claims] 1. An optical sheet having a rectangular plate shape and reading data from a data recording unit by moving the data recording unit in a predetermined direction, wherein the data recording unit has a linear data track along a direction orthogonal to the moving direction. An optical sheet, wherein a plurality of the light sheets are formed side by side, and a progress storage section is formed along a moving direction on a side of the data recording section. 2. An optical sheet according to claim 1, wherein said progress storage section is formed of a heat sensitive agent. 3. The optical sheet according to claim 1, wherein the progress status storage section is formed of a magnetic material. 4. An optical sheet reading apparatus according to claim 1, wherein the data recording section of the optical sheet is irradiated with light to read data based on a difference in a reflected light amount or a transmitted light amount. Irradiating means for irradiating light, an optical fiber on which reflected light or transmitted light is incident, a photoelectric conversion means for converting light from the optical fiber into an electric signal, and a progress position in a progress status storage unit of the optical sheet. An optical sheet reader comprising: a recording unit for recording; and a reading unit for reading a recording position. 5. A recording means for recording a traveling position in a traveling state storage section of an optical sheet according to claim 3, wherein said recording means is capable of magnetic recording,
5. The optical sheet reader according to claim 4, wherein said optical sheet reader is a recording / erasing magnetic head capable of magnetically erasing.