JPS63244385A - Information management system - Google Patents

Abstract

PURPOSE:To shorten the access time of data by providing a plural number of blocks, each having a directory part and also a data part. CONSTITUTION:The plural number of the blocks 50n+1,... having the data parts 60n1-60nn for storing data files and the directory parts 70n1-70nn for recording bits of directory information for the file management of the data files; are provided on an information recording carrier body 1. By this method, since such data to be recorded by the type of usage for the information to be dealt or by the user's will can be recorded under the condition of easy readout of the data, the access time of the data files can thus be shortened.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to information management of an information recording carrier, and in particular, an information management method for recording information in block units [Prior Art] Conventionally, as an information recording carrier, 2. Description of the Related Art Floppy disks that perform recording and reproduction using magnetism, optical information recording carriers (hereinafter referred to as optical cards) that perform recording and reproduction using light, and the like are known. These information recording carriers use auxiliary data, so-called directories, for managing data file by file in order to store large amounts of data. Usually, file information such as a file name, file length, and first data track number is written in the directory to manage files in the data track section.

The above-mentioned optical cards, especially non-erasable write-once optical cards, have a large storage capacity even though they are about the size of a credit card. The dimensions of a credit card are approximately 8
It is 5mm x 55mm, and the track pitch is currently 2.
When the recording length of 1 bit is 51 nm at 0 pm, the number of tracks is 55 ÷ (20X 1O-3) - 2750
(Thu) Bit capacity/track 85 ÷ (5X 1O-3)
-17000 (bit) byte capacity/track 17
000÷8=2000 (bytes), therefore, the total data capacity is 2750X 2000=5500000-5.5 (Mb
In order to manage such a large amount of information, a directory-based information management method is required.

Figure fjf13 is a schematic plan view showing an example of an optical card.

As shown in FIG. 3, the optical card 1 includes a data section 10 (10, 102, . . . ) consisting of data tracks.

10n) and the directory section 20 (20,, 202, -
.

20n) is provided, and the data section l is provided from the top of the optical card.
Data is written in the O direction in the E direction, and directory information as data management information is written in the D direction from the lower part of the optical card 1 in the directory section 20 in a write-once manner.

[Problems to be Solved by the Invention] In the above directory management system, data files are added in the direction shown in FIG.

When playing, the necessary files were not always lined up in the order they were needed.

For example, if there is an information record carrier in which a doctor has recorded data such as electrocardiogram information and electroencephalogram information of a patient from the age of 1 to 15, the information record carrier has 1
Additional information is added, such as electrocardiogram information and brain wave information at the age of 2 years old, electrocardiogram information at the age of 2 years old, and brain wave information. When it becomes necessary to reproduce only the electrocardiogram information from the information record carrier, access to the data file is interrupted and the access time is longer than when only the electrocardiogram information is added sequentially. In addition, if there is a large defect in the information recording carrier that makes it impossible to record or reproduce, it is desirable to avoid that area and use it to improve the recording and reproduction speed. However, it was difficult using traditional methods.

[Means for Solving the Problems] In view of the problems of the prior art described above, an object of the present invention is to provide an information management system that can shorten the time required to access data files. Another purpose is to provide an information management method that can be used while avoiding defective areas.

The above purpose is characterized by providing an information recording carrier with a plurality of blocks each having a data section for storing data files and a directory section for recording directory information for file management of the data files. This is achieved through an information management method that

[Operation] As described above, according to the present invention, by having a plurality of blocks each having a data section and a directory section in an information recording carrier, data can be recorded depending on the usage form of the information to be handled or according to the user's will. This makes it possible to record data in an easily readable state, thereby shortening the time required to access the data file. Furthermore, since the block interval can be set arbitrarily, it is possible to use the system while avoiding defective parts.

[Example〕 Embodiments of the present invention will be described in detail below with reference to the drawings.

In the following description, an optical card will be taken up as an example of an information recording carrier.

First, a configuration example of an information recording/reproducing apparatus using an information recording carrier according to the present invention will be described.

FIG. 2 is a schematic diagram of an example of the configuration of an optical information recording/reproducing apparatus according to the present invention.

In the figure, 31 indicates a recording/reproducing device (hereinafter referred to as a drive), and a host 32 of a higher-level control device is connected to the drive 31. Reference numeral 37 denotes a motor for introducing the optical card l into the drive via a transport mechanism (not shown), moving it back and forth in the R direction by a predetermined drive, and ejecting it out of the apparatus. Reference numeral 38 denotes a light beam irradiation optical system including a light source, which forms a light beam spot on the optical card during information recording and information reproduction. 39 is a photodetector, which can receive the reflected light of the light beam spot on the optical card l. 40 performs autofocusing (AF) by driving a part of the light beam irradiation optical system 38 to move the focus position of the light beam spot on the optical card surface in the Z direction, that is, in the direction perpendicular to the optical card surface. 41 is an AF actuator for driving a part of the light beam irradiation optical system 38 to direct the light beam spot on the optical card surface in the Y direction (that is, the direction perpendicular to both the R direction and the Z direction). This is an AT actuator for moving and performing AT.

The light beam irradiation optical system 38. A photodetector 50 includes a photodetector 39, an AF actuator 40, and an AT actuator 41. 36 is a WIA! for moving the optical head in the Y direction to access the optical beam spot to a desired track on the optical card. It is an IJ motor.

The MPU 33 has a built-in FiON and RAM, and a card feeding motor 37. controls the head feed remoter 36;
Further, under the control of the host 32, an AT/AF control circuit 34, which performs data communication, control, etc. with the host 32, receives a signal from the photodetector 39 and operates the AF actuator 40. A
The T actuator 41 is driven. The output of the photodetector 39 is input to the AT/AFi1jl 01 circuit 34,
Based on this, the control circuit 34 controls the AF actuator 40 and AT actuator 41 to perform AF and AT. The output of the photodetector 39 is also output to the modulation/demodulation circuit 35, and the read information is demodulated. The demodulated signal is sent to the MPU 33 mentioned above.

The modulation circuit 35 modulates the information signal sent from the MPU 33, drives the light beam irradiation optical system 38 according to the modulation signal, executes information recording, and also records the signal from the photodetector 39 during reproduction. Then, the data is demodulated. The host 32 transmits and receives data to and from the drive 31, and records and reproduces information for each data track on the optical card 1. Generally, optical cards have a high error rate due to the nature of the medium, and if highly reliable information is required, error correction means is required.

Next, one embodiment of the information recording carrier of the present invention will be described.

FIG. 1 is a schematic plan view of blocks within an optical card.

In FIG. 1, 50n, 50n÷1.・・・・・・
, 50n+n is a block placed on the optical card l, 6
0nl, 60n2. -=・, 60nn is block 5
0n(7) Information recording area (data section for storing data files), 70n'l, 70n2.・・・・・・
. , 70nn is the directory area of block 50n. The optical card 1 has blocks 50n+1, . . . , 50n+ having the same configuration as the block 50n.
A plurality of n are arranged.

In this embodiment, as shown in FIG.

A data file is recorded in one of the blocks, and a directory section for managing this file is also recorded in the same block. The selection of the block is left to the user who uses the information recording carrier. Based on the selection, the block to be used is transmitted from the host 32 in FIG. Motor 37. Head feed remoter 3
Controls 6th grade. At this time, the block setting information sent from the host 32 to the drive indicates the position of the track where the first directory will be written and the position of the track where the data will be written.

For example, when a doctor records electrocardiogram information or electroencephalogram information, the electrocardiogram information is stored in block 50n, and the electroencephalogram information is stored in block 50n.
+1, and when reproducing only the electrocardiogram information, the MPU 33 only needs to control the card feed motor 36 and head feed motor 37 within block 5011, thereby shortening the access time.

In the above example, when a doctor records electrocardiogram information or electroencephalogram information, the decision as to which information should be recorded in which block to shorten the access time depends on how the doctor himself uses the information. Involved. Therefore, it is possible for the doctor himself to select the part of the optical card to be used.

If the information management method of the present invention is applied to an optical card system, it can be expected to improve the information retrieval speed according to the information handled in various fields, and the optical card according to the present invention can be applied in a wide range of fields. An applicable example is, for example, electronic publishing in the publishing field. The subject of publication is not only text information, but also computer software publication, graphic software publication, etc. In addition, in the medical field, as mentioned above, personal information such as the patient's address, name, age, blood type, type of insurance, past medical history, test result data, diagnosis results, etc. are necessary for medical treatment. It can also be applied to medical cards that record all information.

In addition, for official business, passports, driver's license cards,
It can be used as a book lending card, etc. In addition, in the service and consumer fields, it can be applied to various member cards, educational software, new media community cards, etc. Furthermore, in the field of OA and FA, NC/robot control program cards, equipment maintenance cards, service manual cards, employee ID cards that also serve as health examination records, student ID cards with income units recorded, logistics management cards, and the information recorded therein. It is expected that a total recording and reproducing system will be created from both hardware and software aspects. In this case, as in the present invention, by providing an information recording carrier with a plurality of blocks having a data section for storing data files and a directory section for recording directory information for file management of the data files, It is possible to improve search speed. In other words, it is possible to record and manage the information recorded in the blocks according to the usage form of frequently used information.0For example, if the information recorded on the educational software card is Let's consider a case where the problem is for each grade level in Morikai. If the user (teacher) used at this time often processes problems for each grade in math, science, 9 Japanese, 9 Japanese, one block may contain data for 1 grade of math, science, 1 Japanese, 9 It would be better to record the information, or if it is often processed for each subject,
For example, problems only for arithmetic for all grades may be recorded and organized in one block.

Various block settings are possible for the recording medium of the present invention. For example, when manufacturing the recording medium, it can be preformatted and used as a fixed block. This case is effective when the way of organizing the handled information is fixed and the processing is constant. It is also possible for the user to select and manage the method of organizing such information using icons such as a CRT in an interactive manner with a computer (workstation).

Further, in this embodiment, when a large defect 80 exists in the optical card, blocks can be arranged to avoid the defect. In this case, when the user sets the block position arbitrarily from the host 32, the track position n where the directory is written and the track position where the data is written are transmitted to the drive 31 in the same way as described above, and the MPU 33 controls the card feed motor. 36, controls the head feeding motor 37, etc.; This allows the block interval to be set arbitrarily. Therefore, if it is found that there is a defect 80 on the recording medium as shown in FIG. 1, it is possible to arrange each block avoiding the defect 80.

In the above embodiments, an optical card recording medium was used as an example of the information recording medium; however, the present invention is not limited to optical information recording media, and the shape of the recording medium is not limited to a card shape either. is clear.

[Effects of the Invention] As explained in detail above, according to the information management system of the present invention, it is possible to shorten data access time by having a plurality of blocks each having a directory section and a data section. can.

In particular, when the present invention is applied to an optical card, the effect is particularly remarkable because of its large amount of information storage, expanding the flexibility of the information management system and making it possible to shorten data access time depending on the information handled. It has the effect of

Also, place the block at an arbitrary position 211. ．． By arbitrarily setting the block interval, it is also possible to have the effect of making it possible to remove defective parts.

[Brief explanation of the drawing]

FIG. 1 is a partially schematic plan view showing an example of an information recording finger according to the information management system of the present invention. FIG. 2 is a schematic diagram of an example of the configuration of an information drive used in the present invention. FIG. 3 is a schematic plan view showing an example of a conventional optical card. l: Optical card 50n, 50n+1,---・", 501
14+1 Niblock 60nl, 60n2.・
---, 60nn=data track 70nl, 7
0n2. "..., 70nn: Directory 80
:Defective agent Patent attorney Sekihei Yamashita Figure 1 Procedure corner 17 official book (spontaneous) March 16th, 1988? Mr. Kunio Ogawa, Commissioner of the Patent Office, 1986 3-U1
ca submission 1,-! Indication of Patent Application No. 62-77959 No. 2, Invention Name Information Management Method 3, Relationship with the Amendment Person Case Patent Applicant Address 3-301R2, Shimomaruko, Ota-ku, Tokyo Name (1)
00) Canon Co., Ltd. 4, agent name (6538) Patent attorney Johei Yamashita, 1'
, , T11゛: Section 5, Subject of amendment 6, Contents of amendment (a) The scope of claims column of the specification is amended as shown in the attached sheet. (b) Column for detailed description of the invention in the UA specification ■ Page 3 of the specification, line 16, r directory section 20C201, 202, -,
207+) is provided, and J is the f directory part 20 (201, 202, 203, 204,...
・) is provided, and it is corrected to ``. ■In the rth zz of line 7 on page 9 of the specification, 50n, 50n+1, ・
----, 50n+n is a block arranged on optical card l, 60nl, 60r+2. --------． 60n
n is the information storage 8m area (data section for storing data files) of block 50n, 70nl, 70n2. −
-----, 70nz+ is also the directory area of block 50n. Light power -11 is a block 50n÷1 having the same configuration as block 5On.
, 50n◆n are arranged. In Figure 1, j is 50n, 50n+I, 5
0n+2... are blocks placed on the optical card l, 60nl, 60n2. =----, 60nn
is the information recording area of block 50n (data section for storing data files), 70n+, 70n2.7
On3.7 On4.・-・- is also block 50
This is a directory area of n. The optical card 1 includes a plurality of blocks 50n+1, 5On+2, . . . having the same configuration as the block 50n, el, tl. ”. (c) Brief explanation of the drawings in the specification, page 15, line 15, r50n, 50n+1, 50n+
n: block 60nl, 60n2.・-= , 6
0nn: Data track 70r+1.70n2. ---
-・-, 70nn: Directory 80: Defect j is r50n, 50n+1, 50n+2 Ni block 60nl, 60n2. ......, 60nn
, 60n+1,1. 6On+2,1: Data track 70nl, 70n2.7 On3.70n4.7 O
n+1. l. 70n+1.2, 70n+1.3, 7 On+
2.1. 70n+2.2, 7 On+2,3: Directory 80: Corrected to defect 1. (d) Figure 1 and uIJ3 in the drawing column are corrected to Figures 1 and 3 in the attached sheet. (Claims after amendment) r2, Claims (1) A plurality of blocks each having a data section for storing a data file and a directory section for recording directory information for file management of this data file. An information management method characterized by being provided on an information recording carrier. (2) The information management system according to claim 1, wherein the interval between blocks is arbitrarily set within the information recording carrier. (3) The information management system according to claim 1, wherein the information recording carrier is card-shaped. (4) The information management system according to claim 1, wherein the information recording carrier is an optical information recording carrier that records or reproduces information by irradiating it with a light beam.

Claims (4)

[Claims] (1) An information management method characterized by providing an information recording carrier with a plurality of blocks each having a data section for storing a data file and a directory section for recording directory information for file management of the data file. . (2) The information management system according to claim 1, wherein the blocks are arranged at arbitrary intervals within the information recording carrier. (3) The information management system according to claim 1, wherein the information recording carrier is card-shaped. (4) The information management system according to claim 1, wherein the information recording carrier is an optical information recording carrier that records or reproduces information by irradiating it with a light beam.