JPH0769871B2 - Information file device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information file device that limits readable storage information and protects information confidentiality.

[Conventional technology]

In an information file device that stores information in a large-capacity storage medium such as an optical disk, search conditions consisting of multiple items that specify each storage information are stored in association with each storage information, and the search conditions are input to read the information. The configuration is generally used. In such an information file device, an unspecified number of people can read all the information as long as the input search conditions match. However, if the storage medium is a large-capacity optical disc or the like, one disc is used. In order to maintain the confidentiality of required information against the use of information by an unspecified number of people, conventionally, each searcher is unique in determining its search qualification. A password is given, and the range of information that can be read by the searcher is limited by the password input as part of the search condition.

As a method of protecting the confidentiality of the information used in the conventional information file device, each information that meets the input search conditions is treated at the level of various data constituting the search condition, and the data rank below the qualification of the password possessed by the searcher Japanese Patent Laid-Open No. 58-62745 discloses a method for outputting only some of the data items as data items that can be read by the searcher.

Further, all files storing the information group are classified and integrated into a binder group, and this binder group is further classified and integrated into a cabinet group. A password is assigned to each cabinet, and at the time of information retrieval, the cabinet and binder passwords desired to be opened in each layer are sequentially input from the upper structure, and the information file that the retriever can read is finally determined. A method is used in which search conditions such as keywords are input and only the relevant information within the range can be read.

[Problems to be solved by the invention]

By the way, in order to increase the confidentiality of information in the conventional device, in the former case, as the number of conditions for which the search qualification is to be defined such that the password possessed by the searcher is increased, one searcher searches In the latter case, as the range of information to be obtained becomes narrower, and in the latter case, as the number of layers to be classified and integrated increases, the range of searching by inputting search conditions becomes narrower, which leads to improvement of confidentiality.

However, in the former case, since the search is performed for all search conditions each time the search is performed, it takes a long time for the search due to the increase in the number of conditions, and in the latter case, the password is required for each hierarchy. There is a problem that the user has to input the information, and it takes a long time to search, and the number of input steps complicates the information search.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an information file device that retrieves information with a small number of input steps in a short time and with high confidentiality.

[Means for Solving Problems] According to the present invention, a plurality of information files (a, b, ..., O) are divided into subjects to form a hierarchical structure, and the plurality of information files (a, b) , ..., o), the first storage means (6) for storing the password corresponding to each subject of each hierarchy in the hierarchy structure in the information file device for searching the information of the accessible information file. And a second storage means (7) for storing a password corresponding to the ID data
Then, by inputting the ID data, the password corresponding to the input ID data is retrieved from the second storage means (7), each subject of each hierarchy corresponding to this password is opened, and the information file is accessed. It is characterized by comprising a control means (2) which enables it.

[Action]

In the present invention, when the ID data is input, the password corresponding to this ID data is read out by the second storage means (7), and each subject of each hierarchy corresponding to this password is opened.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings showing an embodiment thereof. FIG. 1 is a block diagram showing the configuration of an information file device according to the present invention, in which 1 is a scanner.
The scanner 1 reads the information and sends it to the system controller 2,
The system control unit 2 includes a storage medium 3 such as an optical disk.
Store information in. The stored information is conceptually sorted into files to form a file group. From the keyboard 4, in addition to keywords and the like consisting of a plurality of items related to the information to be stored, search conditions including the cabinet name to which the file belongs, the subject name such as the binder name, etc. in each hierarchy such as cabinets and binders described below, and each hierarchy The password that is the access condition for each subject, and the searcher data such as the ID number that identifies the searcher are input. The system control unit 2 stores the search condition input from the keyboard 4 in the search condition storage unit 5 in association with the storage position of the information stored in the storage medium 3, and the subject-specific password of each hierarchy as the subject name. Correspondingly stored in the subject-specific password storage unit 6, further, each hierarchical subject name accessible for each searcher is stored in the searcher-specific password storage unit 7 in association with the searcher data and the password. That is, the password is specified by the searcher data input each time the search is performed.

An information search procedure in the information file device having the above-described configuration will be described based on the conceptual diagram of the hierarchical structure of the information file group shown in FIG.

In the present embodiment, the hierarchical structure for classifying the stored information files a, b, c ... Is a two-layer structure, and the lower layers are the binders A, B, C.
The upper layers are cabinets I, II, III ... And the password eyes, the wafers, the oka ... which permit access corresponding to the respective binders and cabinets are set.

The information read by the scanner 1 is stored in the storage medium 3, while the keywords input from the keyboard 4 and the search conditions such as the binder subject name and cabinet subject name to which this information belongs are the storage position of the information in the storage medium 3. Are stored in the search condition storage unit 5, and the affiliation of each information file a, b, c ... Is determined according to the subject names of these cabinets and binders, as shown in FIG.

Note that the subject names of each level are not limited to those set in advance, and new subjects may be added in parallel with the storage of information. In that case, new subject names and passwords for each subject are stored in the subject-specific password storage unit 6, and for those who can read this information file, those passwords are associated with the searcher data and classified by searcher. The password is stored in the password storage unit 7.

Next, at the time of searching for information, when the ID number for specifying the searcher is input from the keyboard 4, the system control unit 2
Is a password of each hierarchy stored in association with the corresponding ID number in the searcher-specific password storage unit 7, for example, eye,
Ue, Kenko, Sashi, and Sota are read out, and the range accessible by this searcher is sequentially defined from the upper hierarchy from the subject password storage unit 6 based on these passwords. That is, the cabinets I and II are opened and accessible by the password, the eye, and the web, and then the binders B, C, and E having the password, the key, the sash, and Sota are opened and accessed in the lower layers of the cabinets I and II. It will be possible.

Furthermore, based on the determined lower layer subject names and binders B, C, E, the corresponding information files e, f, g, h, from the search condition storage unit 5
i, k, and l are defined as searchable information, and based on the keyword input from the keyboard 4, the search for these information is performed.

As a result of the search, the information designated by the searcher is read in the same manner as in the conventional case, and the file in the storage medium 3 is opened and the information is read based on the storage position of the information stored in the search condition storage unit 5. It

On the other hand, it is not possible to search and read information from files other than the above.

〔effect〕

The present invention assigns passwords to the constituent elements of each hierarchy in which the information file group is hierarchically classified, enables access to a predetermined range by inputting these passwords, and limits the accessible range in hierarchical order. As a result, the information files that can be finally accessed are narrowed down, the search time is shortened by only searching these files, and the confidentiality of information is improved. By storing the password of the accessible element in the hierarchy, it is possible to reduce the number of times of inputting the password at the time of information retrieval, to shorten the retrieval time and to simplify the operation.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an information file device according to the present invention, and FIG. 2 is a conceptual diagram showing the hierarchical structure of a file group. 1 ... Scanner, 2 ... System control unit 3 ... Storage medium, 4 ... Keyboard 5 ... Search condition storage unit, 6 ... Subject password storage unit, 7 ... Searcher password storage unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Nii 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-60-160451 (JP, A) JP-A-60 -118954 (JP, A) JP-A-62-150449 (JP, A)

Claims (1)

[Claims] [Claim 1] A plurality of information files (a, b, ..., o) are divided into subjects to form a hierarchical structure, and among the plurality of information files (a, b, ..., o), In an information file device for searching for information in an accessible information file, a first storage means (6) for storing a password corresponding to each subject of each hierarchy in the hierarchical structure, and a password corresponding to ID data By inputting the second storage means (7) for storing the ID and the ID data, the password corresponding to the input ID data is extracted from the second storage means (7), and each subject of each hierarchy corresponding to this password An information file device, comprising: a control means (2) for opening the file to enable access to the information file.