JPH04178967A - Secrecy keeping method for information transmitting system using optical information recording medium - Google Patents

Abstract

PURPOSE:To enable a secret keeping method to function effectively in an information transmitting system using an optical information recording medium by making the reproduction of the information recorded on the recording medium possible only when a specific password code is inputted. CONSTITUTION:A prescribed password code is recorded in advance in the password code recording area 11 of an LD 10 and an optical disk compatible player 20 is constituted in such a way that the player 20 is not able to read out the other information in the LD 10 unless a password code inputted from a password code input device 30 coincides with the password code read out from the area 11. In other words, the player 20 can output the content of the LD 10 as reproduced signals only when both password codes coincide with each other. Therefore, this secret keeping method can function effectively in an information transmitting system using an optical information recording medium.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for maintaining security in an information transmission system, and particularly to a method for maintaining security in an information transmission system using an optical information recording medium.

[Conventional technology]

CDs and CDVs are used as recording media for music and images.

Optical discs such as CD-ROM, CDI, LD, and DVl are becoming popular. Optical information recording media such as such optical disks have information recorded in an optically reproducible manner, and a major feature is that a large amount of information can be recorded in a small space. Taking advantage of these characteristics,
In the publishing field, attempts have been made to publish using optical information recording media instead of conventional printed matter. Additionally, a method has been proposed in which catalogs are published using LDs, CD-Vs, etc. instead of the conventionally printed materials. In catalogs using such optical information recording media, product information can be expressed in various formats such as audio, still images, moving images, and text, so it is expected that this will increase the desire to purchase.

[Problem to be solved by the invention]

2. Description of the Related Art In information transmission systems using conventional optical information recording media, various improvements have been made so that information can be transmitted to a larger number of people. For example, several different media (e.g. 30 cm LD.

20c+nLD single, CDV, CD, CD single), so-called optical disk compatible players have been developed and are commercially available, which can play back information recorded on 20c+nLD singles, CDVs, CDs, and CD singles. For information such as music and videos that should be disseminated as widely as possible, it is a positive phenomenon that the path for information transmission to a larger number of people is opened.

However, there is also information that is not desirable to be transmitted to an unspecified number of people without restriction. For example, as described above, when an optical information recording medium is used as a catalog to transmit product information, there are cases where it is desired to provide the contents of a specific catalog to specific customers. Alternatively, there may be cases where it is desired to publish a newsletter using an optical information recording medium and to communicate the contents of the newsletter only to specific members. In this way, information transmission systems using conventional optical information recording media cannot transmit information in a so-called confidential manner only to a specific person.

With the current system, anyone who has the optical information recording medium in their hands can know the contents.

Therefore, an object of the present invention is to provide a security method that effectively functions in an information transmission system using an optical information recording medium.

[Means to solve the problem]

The present invention provides a system for transmitting information from an information transmitter by having the information receiver reproduce the optical information recording medium prepared by the information transmitter and recording information in an optically reproducible manner using a reproducing device. In an information transmission system that transmits information to a recipient, a specific password code is given to a specific information recipient, and a specific code code is applied to the optical information recording medium to be supplied to the specific information recipient. A PIN code input device for inputting a PIN code is added to the playback device, and the PIN code entered manually/from the device and the PIN code recorded on the optical information recording medium are combined. The information can be reproduced only when the information matches, thereby ensuring confidentiality.

[For production]

According to the security method according to the present invention, in order for the recipient of information to reproduce the information in the optical information recording medium, the recipient must enter a specific password manually. That is,
Information will not be reproduced unless the entered password code matches the password code recorded in the optical information recording medium. Therefore, information can be transmitted only to a specific information recipient who has the correct password code, and a security method that functions effectively in an information transmission system using an optical information recording medium can be realized.

〔Example〕

The present invention will be described below based on illustrated embodiments. FIG. 1 is a system configuration diagram for realizing a security keeping method according to an embodiment of the present invention. Here, an embodiment in which the present invention is applied to a product catalog using an LD will be described.

The product catalog is published in the format of LDl□. This L
Information regarding products can be recorded in the 'DIQ in the form of audio, still images, videos, text, etc.

The information transmitter sends the thus created LDIO to general consumers, ie, information recipients, for example, by direct mail. The information recipient uses the optical disc compatible player 20 to read the sent L
Regenerate information about products in DIO. That is, on the screen of the display connected to the optical disc compatible player 20, images and explanatory text about the product can be viewed, and the product explanation can be heard through the speaker.

The feature of the present invention is that a pin code input device 30 is added to the future compatible player 20, and
The main feature is that a password code recording area 11 is provided in the LDIO, and a specific password code is recorded therein. This feature will be explained below by taking as an example a case where a department store serving as an information transmitter transmits the contents of a catalog of products for sale at a special discount to a specific customer serving as an information recipient. The department store as the information transmitter records a predetermined password code in the password code recording area 11 in the LDIO. The optical disc compatible player 20 cannot read other information in the LDIO unless the PIN code input from the PIN code input device 30 and the PIN code read from the PIN code recording area 11 match. The configuration should be such that this is not possible. Therefore, the optical disc compatible player 20 can output the contents of LDIO as a reproduction signal only when the two match. With such a configuration, information in the LDIO cannot be reproduced unless the customer is a specific customer who has been informed of the password by the department store. By managing PIN numbers, department stores can maintain the confidentiality of transmitted information.

Any device may be used as the PIN code input device 30 as long as it is a device that allows the customer to input the PIN code, but three embodiments will be exemplified here. . FIG. 2 is a diagram showing an embodiment in which the PIN code input device 30 is configured by an IC card reading/writing device 40. The department store issues in advance an IC card 41 on which a predetermined code code is recorded only to specific customers. When this customer wants to play back the LDIO sent from the department store, he inserts the IC card 41 into the IC card reading/writing device 40. The IC card reading/writing device 40 reads the password code in the IC card 41 and notifies the optical disc compatible player 20 of this.

The optical disc compatible player 20 compares this password code with the password code in the LDIO, and reproduces the information in the LDIO only if the two match. Therefore, a customer who has a proper IC card 41 can view the information in the LDIO.

Note that a magnetic card may be used instead of the IC card 41.

FIG. 3 is a diagram showing an embodiment in which a password code input device 30 is configured by an input device 5o having a numeric keypad. The department store issues in advance a document 51 on which a predetermined password code is printed only to specific customers. When the customer wants to play back the LDIO sent from the department store, the customer manually enters the password into the input device 50 having a numeric keypad. This entered pin code and LDIO
The information in the LDIO is reproduced only if the two match. Therefore, only customers who know the correct pin code can view the information in the LDIO. Note that the input device 50 having a numeric keypad is an optical disc compatible player 2.
It is convenient to use the wireless remote control device attached to the 0.

FIG. 4 is a diagram showing an embodiment in which the password code input device 30 is configured by a barcode reader 60. The department store issues in advance a card 61 with a barcode printed thereon corresponding to a predetermined password code to a specific customer. When this customer wants to play back the LDIO sent from the department store, he traces the barcode on the card 61 with the reader pen 62 and inputs the password. This input PIN code is compared with the PIN code in LDIO, and only when the two match, the information in LDIO is reproduced. Therefore, only a customer who has a document printed with the proper barcode can view the information in the LDIO.

Although the present invention has been described above based on several examples, the present invention is not limited to these examples.
In addition to this, it can be implemented in various other ways. For example, the PIN code input device 30 could be realized using various devices other than the three embodiments described above. In addition, in the above-described embodiments, the catalog is configured only by LDIO, or the LDIO is attached to a regular printed catalog, and only specific information about specific products listed in the printed catalog is transmitted to the LDIO. It may also be recorded within the In this case, the customer
By playing , users can receive explanations about some typical products using still images, videos, audio, etc., and for more detailed information, users can refer to regular printed catalogs.

Further, the present invention is not only used for catalogs aimed at specific customers as described above, but can also be applied to various other uses. For example, LD could be used to publish a newsletter with content that you want to convey to specific members, or you could use LD to circulate confidential information such as internal mail and meeting minutes. It can also be used in cases. Furthermore, the present invention applies not only to LDs but also to CDVs, CDIs, DVIs, LD-ROMs, C
It can be widely applied to information transmission systems using optical information recording media such as D-ROM.

〔Effect of the invention〕

As described above, according to the security method of the present invention, the information in the optical information recording medium is reproduced only when the recipient of the information inputs a specific pin code. It becomes possible to transmit information only to a specific recipient, and it is possible to realize a method of maintaining confidentiality that functions effectively in an information transmission system using an optical information recording medium.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram for realizing a security keeping method according to an embodiment of the present invention, FIG. 2 is a diagram showing an embodiment in which a PIN code input device is configured by an IC card reading/writing device, and FIG. The figure shows an embodiment in which the PIN code input device is configured by an input device having a numeric keypad, and FIG. 4 is a diagram showing an embodiment in which the PIN code input device is configured by a barcode reader. 10... LD, 11... PIN code recording area, 20 optical disk compatible player, 30... PIN code manual device, 40... IC card reading/writing device, 41...
・IC cart, 50...input device with numeric keypad,
51・Document with a printed PIN code, 60...Barcode reader, 61...Card with a barcode printed on it,
62...Reader pen. Patent applicant: Dai Nippon Printing Co., Ltd.

Claims (1)

[Scope of Claims] When the information recipient uses a reproducing device to reproduce an optical information recording medium prepared by the information transmitter and on which information is recorded in an optically reproducible manner, the information transmitter In an information transmission system that transmits information from to a recipient of information, a specific password is given to a specific recipient of information, and the specified code is assigned to an optical information recording medium to be supplied to the recipient of the information. record a PIN code, and add a PIN code input device to the playback device for inputting the PIN code;
The PIN code entered from this PIN code input device,
A method for maintaining confidentiality in an information transmission system using an optical information recording medium, characterized in that information can be reproduced only when a password matched with a password recorded on the optical information recording medium.