JP2005182885A - Base-n notation system recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording method which can increase the recording capacity with the same density as in the conventional recording by expanding the binary recording system mainly used currently. <P>SOLUTION: Reading is made possible by adding more pieces of information to one piece of recording information of a recording medium to make a unit of reading have a base-n notation (n is at least 3) information on a recording medium. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a recording method for a recording medium used in an electronic computer or the like.

The amount of information is increasing year by year, such as handling high-quality images and sounds using electronic computers, and a large amount of databases. For this reason, the density of recording media is increasing. Along with this, it has come to have considerable accuracy for data reading technology. Some devices have been devised to easily perform a reading operation on a large-capacity recording medium.
JP 2000-276732 A

  Conventionally, there has been a limit to increasing the density of recording media, and the currently used data reading and recording media manufacturing techniques are not only for binary data, but also for intermediate information. There is technology to put. By applying the intermediate technology, the current mainstream binary recording system is expanded, and a plurality of information is added to one piece of recording information on the recording medium, thereby enabling a reading operation per unit on the recording medium. On the other hand, it is an object of the present invention to provide a conventional recording method that allows n-ary information (tertiary or higher) information to be read and can be read, and that can increase the capacity with the same recording density.

  In order to achieve the above-mentioned object, the present invention described in claim 1 adds n pieces of information to one recording on the recording medium, so that n reading operations per unit on the recording medium are performed. Or n-ary (tertiary or higher) information is read out.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, one bit of the optical recording medium is tilted to have information of ternary system or more by a difference in angle.

  According to a third aspect of the present invention, in the first aspect of the invention, by placing a substance having a polarizing action on one bit of the optical recording medium, information of ternary system or more is given by the changed state. It is characterized by that.

  According to a fourth aspect of the invention, in the first aspect of the invention, by placing a substance that reflects only light of a specific wavelength on one bit of the optical recording medium, the type of wavelength of the reflected light It is characterized by having information of ternary system or more.

  Further, the invention described in claim 5 is characterized in that, in the invention described in claim 1, the light transmission type recording medium gives information of the ternary system or more by the difference in the amount of light transmitted through one recording. To do.

  According to a sixth aspect of the present invention, in the first aspect of the present invention, the light transmission type recording medium provides information of a ternary system or more depending on the type of wavelength of light transmitted for one recording. Features.

  The invention described in claim 7 is the invention described in claim 1, wherein information per element of the semiconductor recording medium (memory), for example, voltage information is provided in n stages, so that information of ternary system or more is obtained. It is characterized by making it.

  The invention described in claim 8 is characterized in that, in the invention described in claim 1, the magnetic recording medium gives information of a ternary system or more to one recording according to the level of magnetic strength. .

  The invention described in claim 9 is a transfer method similar to that of the invention described in claim 1, and the voltage information is divided into n stages for one signal line for exchanging data on the computer. It is characterized by handling information beyond the decimal system.

  As described above, according to the present invention, it is possible to increase the capacity of a recording medium as compared with the binary recording system by the n-ary recording system of the present invention.

  By adding a plurality of information to one recording on the recording medium, n or n-ary (tertiary or higher) information is read for a reading operation per unit in the recording medium, and the optical recording medium By tilting one bit of the optical recording medium so as to have information more than ternary based on the difference in angle, and by putting a substance having a polarizing action on one bit of the optical recording medium, it is possible to obtain more than ternary by the change state. By putting a substance that reflects only light of a specific wavelength on one bit of an optical recording medium, information that is ternary or higher is recorded depending on the type of wavelength of the reflected light. Depending on the medium, the light transmission type recording medium of information of ternary system or more due to the difference in the amount of light transmitted for one recording, and the information of ternary system or more by the type of wavelength of light transmitted for one recording Semiconductor Information per element of the medium (memory), for example, voltage information, is set in n stages, so that information in the ternary system or higher is ternary by a magnetic recording medium by a magnetic strength level for one recording. The above information is realized by handling information of ternary system or more by setting voltage information to n stages for one signal line for exchanging data on a computer.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a recording method for a recording medium according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a lateral view of the recording bit of the optical recording medium according to the second aspect of the recording method of the recording medium according to the present invention. FIG. 2 is an image diagram of recording bits of an optical recording medium using the polarizing plate according to claim 3 of the recording method of the recording medium according to the present invention. FIG. 3 is an image diagram of recording bits of an optical recording medium according to claim 4 of the recording method of the recording medium according to the present invention. FIG. 4 is an image diagram of the recording bit of the light transmission type recording medium according to claim 5 of the recording method of the recording medium according to the present invention. FIG. 5 is an image diagram illustrating a state where light is transmitted to one bit (transmission window) in which the bit (transmission window) in FIG. 4 is enlarged and transmitted light intensity is different.

  FIG. 1 is a diagram showing an operation of reading one bit in an embodiment of an optical recording medium of a recording medium recording system according to the present invention. In this embodiment of the optical recording medium, the incident light 3 emitted from the light source 1 hits the reflecting surfaces 5a, 5b and 5c having the respective inclinations of the recording bit 7 which is the reflecting plate of the disk surface 6 to reflect the reflected light 4 reflected. The detection is performed by the detectors 2a, 2b, and 2c that can be detected at each angle. The reflected light 4 is given a predetermined inclination according to the reflection angles of the reflection surfaces 5a, 5b and 5c, so that the direction of the light of the reflected light 4 is the detector 2a arranged at each angle according to the inclination of the bit. , 2b, 2c can record and detect ternary information or more for one recording bit, and the detection method uses a data reading / reproducing apparatus.

  FIG. 2 shows an operation of reading one bit in an embodiment of the recording medium recording type optical recording medium according to the present invention. In this embodiment of the optical recording medium, the incident light 10 that has passed through the polarizing plate 1 hits and reflects the substances 9a, 9b, and 9c having different reflection actions, and since the reflected light 11 has a different reflection action, the reflected light 11 changes in luminance. To do. By determining the degree of brightness, information in the ternary system or more can be recorded and detected.

  FIG. 3 shows a bit reading operation in an embodiment of the recording medium recording type optical recording medium according to the present invention. In this embodiment of the optical recording medium, the reflectors 15a, 15b, and 15c are reflectors that reflect only specific wavelengths, and the reflected lights 14a, 14b, and 14c are reflected by the detector 17 using only wavelengths having specific waveforms as reflected light. To detect. As a result, ternary recording or more can be recorded and detected by a code table determined in advance in association with an algorithm for each wavelength. For example, when the state where there is no reflected light is set to 0, the red reflected light is set to 1, blue reflected light is set to 2, and yellow reflected light is set to be set to 3.

  FIG. 4 is a diagram showing the state of the optical disk and the recording bits, and shows a light transmission type recording medium 18 which is a disk on which light is transmitted or not and a recording bit 19 of a transmission window.

  FIG. 5 shows a single bit reading operation in the embodiment of the light transmission type recording medium of the recording medium recording system according to the present invention. Unlike a conventional CD that reads information by reflecting light, the light transmission type recording medium transmits incident light 21 through transmission windows having different transmission light intensities of the recording bits 20a, 20b, and 20c, and the recording bits. Due to the difference in transmitted light intensity of the transmitted light of 22a, 22b, and 22c, ternary recording or more can be recorded and detected.

  In the embodiment of the recording medium for the light transmission type recording medium of the recording medium, the light transmission type recording medium has a transmission window portion having different transmission light intensities of the recording bits 20a, 20b and 20c in FIG. By changing the transmission window through which light passes, and detecting the wavelength of the transmitted light that has passed through, recording in the ternary system or more can be performed and detected.

  In the embodiment of the recording medium for the semiconductor recording medium of the recording medium, information of ternary system or more is provided by setting the voltage information to n stages.

  In the embodiment of the magnetic recording medium of the recording method of the recording medium, information of ternary system or more is given to one recording at the level of magnetic strength. With this method, you can use magnetic tapes and magnetic disks.

  In the embodiment for the data transfer system, the information on the ternary system or higher is handled by setting the voltage information to n stages for one signal line for exchanging data on the computer.

  It is possible to cope with an increase in the amount of information such as a high-quality image and audio database using an electronic computer.

It is the image figure seen from the side with respect to the recording bit of the optical recording medium of Claim 2 of the recording system of the recording medium concerning embodiment of this invention. It is an image figure with respect to the recording bit of the optical recording medium using the polarizing plate of Claim 3 of the recording system of the recording medium concerning embodiment of this invention. It is an image figure with respect to the recording bit of the optical recording medium of Claim 4 of the recording system of the recording medium concerning embodiment of this invention. It is an image figure with respect to the recording bit of the light transmission type recording medium of Claim 5 of the recording system of the recording medium concerning embodiment of this invention. FIG. 5 is an image diagram showing a state where light is transmitted to one bit (transmission window) having a different transmitted light intensity by enlarging the bit (transmission window) of FIG. 4 according to the embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light source 2a, 2b, 2c Detector 3 Incident light 4 Reflected light 5a, 5b, 5c Reflective surface 6 Disc surface 7 Recording bit 8 Polarizing material 9a, 9b, 9c Polarizing substance 10 Polarized incident light 11 Reflected light DESCRIPTION OF SYMBOLS 12 Recording bit 13 Incident light 14a, 14b, 14c Reflected light 15a, 15b, 15c Reflector 16 Light source 17 Detector 18 Light transmission type recording medium 19 Recording bit 20a, 20b, 20c Recording bit 21 Incident light 22a, 22b, 22c Transmission light

Claims (9)

  By adding a plurality of information to one record of a recording medium, n or n-ary (tertiary or higher) information is read for a reading operation per unit on the recording medium. Recording method to be performed.   A recording method characterized in that one bit of an optical recording medium is tilted to have information of ternary system or more by a difference in angle.   A recording method characterized in that a substance having a polarization action is placed on one bit of an optical recording medium so that information in a ternary system or more is given depending on the changed state.   A recording system characterized in that a material that reflects only light of a specific wavelength is placed on one bit of an optical recording medium, so that information of ternary system or more is provided depending on the type of wavelength of the reflected light.   A recording system characterized in that information of a ternary system or more is given by a light transmission type recording medium according to a difference in the amount of light transmitted for one recording.   A recording system characterized in that a light transmission type recording medium gives information of a ternary system or more according to the type of wavelength of light transmitted for one recording.   Recording system characterized in that information per element of a semiconductor recording medium (memory), for example, voltage information is made into n stages to provide information of ternary system or more.   A recording system characterized in that a magnetic recording medium gives information of a ternary system or more according to the level of magnetic strength for one recording.   A system characterized by handling information in a ternary system or more by setting voltage information to n stages for one signal line for exchanging data on a computer.

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