JP4892993B2 - Portable terminal, content distribution system, UIM card, program, and recording medium - Google Patents

Description

The present invention relates to a content distribution system that distributes multimedia contents such as video and music via a network, and more particularly to a UIM (User that realizes an audience rating survey of distributed digital contents.
Identity Module) relates to a portable terminal equipped with a card.

  2. Description of the Related Art In recent years, there are many content distribution systems that distribute multimedia content such as video and music via broadcasting such as satellite broadcasting and cable TV, and networks such as the Internet. For example, when viewing multimedia data such as video and audio over a network, “streaming distribution” is known in which data is received and reproduced simultaneously. A content distribution system that provides digital content data such as video and music using such streaming distribution is disclosed (for example, see Patent Document 1).

  Conventionally, in radio programs and television program broadcasts, audience ratings per hour of programs have been investigated. For programs such as companies that are program sponsors, the audience rating is a criterion for advertising effectiveness for programs that are aired. For example, an audience rating survey center, an online terminal, an audience rating measuring instrument, and a television set are transmitted to the audience rating survey center from the audience rating measuring instrument via the online terminal. There is a TV audience rating survey system that collects data and aggregates audience ratings. Furthermore, there is an audience rating survey device that surveys the audience rating of a program distributed via a communication network such as the Internet (see, for example, Patent Document 2).

JP 2001-43440 A JP 2002-324025 A

However, in the conventional content distribution system, when distributing multimedia content data such as video and audio over the network, the audience rating of the advertisement to be posted cannot be grasped, and the advertising effect of the content on which the advertisement is posted can be accurately determined. There was a problem that it was difficult to do.
Also, in a system that distributes various types of content data from multiple content distribution servers via a network, a new audience rating totaling device that collects and aggregates viewing data from receiving devices is required when conducting audience rating surveys. Therefore, there is a problem that the installation and management of the apparatus are expensive.
Furthermore, with the conventional unilateral survey method / technique from the content distribution side, viewing results associated with pre-registered user (contractor) attribute information (name, age, address, etc.) are possible on a time axis. However, it was not possible to investigate in real time the change in viewing situation associated with the attribute information of the user (contractor) due to content distribution.

  The present invention has been made in view of the above points, and implements an encryption / decryption function corresponding to multi-format digital contents in a UIM card, and contents associated with dynamic user attribute information, An object of the present invention is to provide a content distribution system that realizes an advertisement viewing analysis function.

In order to achieve the above object, a first invention provides at least one content server that distributes digital content data, and an encryption device that encrypts digital content data of different formats distributed from the content server. , A portable terminal equipped with a UIM (User Identity Module) card that reproduces distributed digital content data , wherein authentication information for identifying a legitimate user / terminal is received by the UIM card. Storage means for storing the authentication information together with the usage request to the content server , and the contract usage information and the contractor's information corresponding to the contract content for receiving the distribution of the digital content data received from the content server. Before attribute information disclosure level A use request means for storing the UIM card, is distributed from the contents server, via the encryption device, a content receiving means for receiving digital content data encrypted, the digital content data encrypted received On the other hand, based on the contract usage information and the authentication information, an authentication means for authenticating a contract terminal, and a decryption means for decrypting the received encrypted digital content data when authenticated by the authentication means; Adding the attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data reproduced by the reproducing means at a predetermined time interval with the reproducing means for reproducing the decrypted digital content data. portable characterized by comprising a viewing information measuring means for transmitting to said encryption device Te It is a terminal .

Also, further, via a network, is connected to the other content receiving device, input means for inputting the authentication information for identifying the authorized user / terminal, video, image, audio or digital content data, An encryption means for encrypting the input digital content data and generating encrypted digital content data with the authentication information added thereto; a content transmission means for transmitting the encrypted digital content data to the content receiving device; It is desirable to further comprise.

  The portable terminal having the UIM card according to the first invention transmits a use request to the content server and sets the attribute information disclosure level of the contractor according to the contract content to receive distribution of the digital content data received from the content server. Store in UIM card. A predetermined time that is received from the content server and receives the encrypted digital content data via the encryption device, decrypts the received encrypted digital content data, and reproduces the decrypted digital content data At the interval, the attribute information disclosure level of the contractor is added to the viewing information indicating the viewing status of the digital content data to be reproduced, and transmitted to the encryption device.

“Digital content data” is multimedia data such as video and audio, for example, streaming data using a streaming method.
"UIM card" is a general term for IC cards that are developed based on SIM cards used in European GSM mobile phones and used in mobile phones, and is a small IC card of 15 x 25 x 0.8mm. It may also be used as another name for “USIM (Universal Subscriber Identity Module) card”. The “UIM card” used in the present invention is a general term for UIM cards, SIM cards, and USIM cards.
“Authentication information” is information for specifying a legitimate user / terminal, such as identification information of a portable terminal or contractor identification information stored in a UIM card.
“Contract usage information” is information indicating a usage period and reception permission according to the contract content, and is stored in the UIM card.
The “viewing information” includes identification information of the portable terminal, current time information, viewing status information indicating whether or not the user is viewing, attribute information of a public contractor, and the like.
The “advertisement information” includes advertisement identification information, identification information of digital content data on which an advertisement is posted, advertisement delivery time information, and the like.
“Contractor attribute information disclosure level” is attribute information of the disclosure range of the contractor attribute information 10 corresponding to the distribution service, and based on the individual agreement, the individual contract between the individual and the trader / service provider Specifies the disclosure (disclosure) level.

In the first invention, in the distribution of multimedia contents such as video and audio over the network, it is possible to provide the viewing status and viewing tendency of the content (for example, preview / trial listening content) and the advertisement to be posted, and an effective and real-time audience rating survey is possible. It becomes possible and can raise an advertising effect.
In addition, the audience rating totaling process that enables the audience rating survey to be performed in the existing system configuration by executing the audience rating counting process in the encryption device 103, and newly collects and counts the viewing data from the receiving device. It is not necessary to install the video, and the cost burden on the audience rating survey is reduced.

According to a second aspect of the present invention, at least one content server that distributes digital content data, an encryption device that encrypts digital content data of different formats distributed from the content server, and the distributed digital content data A content distribution system in which a portable terminal including at least one UIM card to be reproduced is connected via a network, wherein the portable terminal receives authentication information for identifying a legitimate user / terminal. Storage means for storing in a card , contract usage information and contractor according to contract contents for transmitting the authentication information together with the use request to the content server and receiving the distribution of the digital content data received from the content server The attribute information disclosure level of the UIM Use request means for storing the content in the data server; content receiving means for receiving the encrypted digital content data distributed from the content server and via the encryption device; and the received encrypted digital content data On the other hand, based on the contract usage information and the authentication information, an authentication means for authenticating a contract terminal, and a decryption means for decrypting the received encrypted digital content data when authenticated by the authentication means; And a reproduction means for reproducing the decrypted digital content data, and adding the attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data reproduced by the reproduction means at a predetermined time interval. Viewing information measuring means for transmitting to the encryption device, wherein the encryption device is the content server. It encrypts the digital content data of each of different formats received from the encryption means for sending, storing the viewing information added with the attribute information disclosure level of the subscriber received from the portable terminal, wherein said viewing information A content distribution system comprising: viewing information totaling means for totaling viewing information regarding the digital content data and / or an advertisement distributed together with the digital content data based on a level of disclosure of attribute information of a contractor. It is.

The second invention is an invention relating to a content distribution system in which a content server, an encryption device, and the portable terminal of the first invention are connected via a network .

According to a third aspect of the present invention, a network is connected to at least one content server that distributes digital content data and an encryption device that encrypts digital content data of a different format distributed from the content server via a network. A UIM card provided in a portable terminal that reproduces the digital content data that has been received, the authentication information for specifying the authorized user / terminal, and a contract according to the contract content for receiving the distribution of the digital content data Storage means for storing usage information and a contractor's attribute information disclosure level corresponding to the contract content for receiving the distribution of the digital content data, and the encrypted digital content data distributed from the content server; On the other hand, based on the contract use information and the authentication information, Authentication means for authenticating the terminal, decryption means for decrypting the encrypted digital content data received from the portable terminal, encrypting the digital content data received from the portable terminal, and An encryption unit for generating the added encrypted digital content data; and adding the attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data to be reproduced at a predetermined time interval. A UIM card, comprising: viewing information measuring means to be sent to the type terminal body.

A UIM card according to a third aspect of the present invention provides authentication information for identifying a legitimate user / terminal, contract usage information according to contract contents for receiving distribution of the digital content data, and distribution of the digital content data. Storage means for storing the attribute information disclosure level of the contractor corresponding to the contract content to be received, and the contract use information and the authentication information for the encrypted digital content data distributed from the content server The authentication means for authenticating the contract terminal, the decryption means for decrypting the encrypted digital content data received from the portable terminal, and the digital content data received from the portable terminal, Encryption means for generating encrypted digital content data with the authentication information added thereto, and for a predetermined time In comprises a viewing information measuring means for feeding by adding attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data to be played in the portable terminal body.

In a fourth aspect of the invention, a storage step for controlling storage of authentication information for identifying a legitimate user / terminal is transmitted to the computer, and the authentication information is transmitted together with a use request to the content server and received from the content server A usage request step for storing contract usage information and a contractor's attribute information disclosure level according to the content of the contract to receive the distribution of digital content data, and the distribution request from the content server and encrypted via the encryption device Receiving the received digital content data, authenticating the contract terminal based on the contract usage information and the authentication information for the received encrypted digital content data, and the authentication step Received, the encrypted digital content data received A decryption step for decrypting the digital content data, a playback step for playing back the decrypted digital content data, and viewing information indicating the viewing status of the digital content data played back by the playback step at a predetermined time interval. A viewing information measuring step of adding an attribute information disclosure level and transmitting the attribute information disclosure level to the encryption device .
A fifth aspect of the present invention is a storage step for controlling storage of authentication information for identifying a legitimate user / terminal, and the digital content data received from the content server by transmitting the authentication information together with a use request to the content server. Request for storing contract usage information and contractor's attribute information disclosure level according to the contract contents to receive the distribution of the content, and the digital that is distributed from the content server and encrypted via the encryption device A content receiving step for receiving content data, an authentication step for authenticating a contract terminal based on the contract usage information and the authentication information for the received encrypted digital content data, and authentication by the authentication step. If the received encrypted digital content data is decrypted, A playback step of playing back the decrypted digital content data, and at a predetermined time interval, the attribute information disclosure level of the contractor is added to the viewing information indicating the viewing status of the digital content data played back by the playback step. And a viewing information measuring step for transmitting to the encryption device . A recording medium on which a computer-readable program is recorded .

  The above-mentioned program may be held and distributed on a recording medium such as a CD-ROM, or the program can be transmitted and received via a communication line.

  The present invention implements an encryption / decryption function corresponding to a multi-format digital content on a UIM card, a content distribution system for realizing a content associated with dynamic user attribute information, an advertisement viewing analysis function, and the like Can be provided.

  Exemplary embodiments of a content distribution system according to the present invention will be described below in detail with reference to the accompanying drawings. In the following description and the accompanying drawings, the same reference numerals are given to components having substantially the same functional configuration, and redundant description is omitted.

  First, the configuration of the content distribution system 100 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a configuration of a content distribution system 100 according to the present embodiment.

  FIG. 1 shows an example of a content distribution system. As shown in FIG. 1, the content distribution system 100 includes a plurality of content servers 101, an encryption device 103, a portable terminal 107, and other content receiving devices 108. Etc. are connected via the network 109.

  The network 109 is a network such as the Internet or a local area network (LAN), and may be wired or wireless.

  The content server 101 is a server computer or the like, for example, a server that distributes and manages digital content data 110 such as video and audio. The content owner or the service provider for the owner has the content server 101. The content server 101 includes a communication unit 141, a contract registration unit 142, and the like.

The communication unit 141 performs communication between the content server 101 and the encryption device 103, distributes digital content data such as video and music to the portable terminal 107 by a streaming method (or download), and Receive control data and contract registration information.
The contract registration unit 142 performs contract registration in response to a distribution use request such as contract registration information received from the portable terminal 107, and holds the contract information. The contract usage information corresponding to the contract content for receiving the digital content data distribution service and the attribute information disclosure level of the contractor are transmitted to the portable terminal 107 via the communication means 141.

  The encryption device 103 is disposed between the plurality of content servers 103, the network 109, and the portable terminal 107, and includes a communication unit 131, an encryption unit 132, a viewing information totaling unit 133, and the like. The connection between the content server 101 and the encryption device 103 is not disclosed to the external network 109 and does not need to be encrypted. The data channel 113 is various control data from the portable terminal 107, contract registration information, and the like.

The communication unit 131 performs communication between the plurality of content servers 101 and the plurality of portable terminals 107, receives the digital content data 110 from the content server 101, and is encrypted by the encryption unit 131. The digital content data 111 is transmitted. Also, various control data and contract registration information from the portable terminal 107 are received and transmitted to the content server 101.
The encryption unit 132 encrypts the transmitted data and generates the encrypted digital content data 111 without depending on the format and data protocol of each different digital content data 110.
The viewing information totaling means 133 calculates the viewing rate of advertisements placed in the digital content data 110 and the digital content data 110 based on the viewing information 320 stored in the viewing information database 310, the advertisement information 330, and the content information 340. Analyzing viewing tendency according to attribute information disclosure level.

  Note that the encryption / decryption method corresponding to the encryption unit 132 is a matter widely performed in the computer field, and is not defined in the present invention. For example, in Japanese Patent Publication No. 2004-511931 A method for selectively encrypting transmitted data independent of the format and data protocol of each different digital content data is described, separating a first portion of data from a second portion of data Parsing means for encrypting, encrypting means for encrypting only the first part of the data, and combining means for combining the first part of the encrypted data and the second part of the unencrypted data An encryption method provided and a decryption method for decrypting the encrypted data on the portable terminal side are shown.

  The encryption device 103 is connected to the additional data handler 105 as necessary. The additional data handler 105 uses the data channel 113 to perform quality services such as additional data correction and encryption appropriate correction, electronic commerce, contract and settlement. For example, it is a quality service system that performs quality assurance such as data correction of the frame aspect ratio of the display unit 206 of the portable terminal 107. The additional data handler 105 allows more complicated data use and management.

  In the present embodiment, the contract registration unit 141 is executed in response to the contract registration distribution use request from the portable terminal 107, but an application program corresponding to the contract registration unit 141 is executed in the additional data handler 105. It may be installed and executed.

The mobile terminal 107 is a mobile phone (particularly the third generation 3GPP), and the mobile terminal used in the present invention is the mobile terminal 107 including the UIM card 220. The UIM card 220 is a small contact IC card. The “UIM card” used in the present invention is generally referred to as a UIM card, a SIM card, or a USIM card.
The portable terminal 107 has usage request means 120 and content transmission / reception means 121.

The usage request unit 120 transmits a content usage request to the content server 101 and writes the contract usage information 229 corresponding to the contract content indicating that the distribution of the digital content data received from the content server 101 is received to the UIM card 220. The means 121 receives the encrypted digital content data 111 distributed from the content server 101 and passes through the encryption device 103, encrypts the digital content data input with a digital camera, microphone, etc. The encrypted data to which 228 is added is transmitted to another content receiving device 108.

  The UIM card 220 includes an authentication unit 122, an encryption / decryption unit 123, and a viewing data measurement unit 124.

The authentication means 122 receives the distribution service for the digital content data received from the content server 101 in response to the predetermined authentication information 228 stored in advance and the distribution service usage request for the digital content data 110 to the content server 101. The contract terminal is authenticated based on the contract use information 229 regarding the use contents and the authentication information 228. The authentication information 228 is information for specifying the authorized user / terminal, and is, for example, contractor identification information stored in the UIM card 220, identification information of the portable terminal 107, or the like.
When the authentication unit 122 authenticates, the encryption / decryption unit 123 decrypts the received encrypted digital content data, and uses the camera 203 and the microphone 207 to input input data such as video and audio. Encrypted data with encryption and authentication information 228 added is generated.
The viewing data measurement unit 124 adds the attribute information disclosure level of the contractor to the viewing data indicating the viewing status of the reproduced digital content at a predetermined time interval, and transmits it to the encryption device 103.

  The content receiving device 108 is a set-top box (STB) which is a receiving device for analog TV or digital TV, an in-vehicle terminal which is a position signal receiving / transmitting device such as an in-vehicle guidance device or GPS.

  Next, a hardware configuration of the portable terminal 107 including the UIM card 220 will be described with reference to FIG. FIG. 2 is a hardware configuration diagram of the portable terminal 107 including the UIM card 220. Only the components related to the present invention are illustrated, and the transmission / reception unit and the like are not illustrated.

The portable terminal 107 includes a control unit 201, a storage unit 202, a camera 203, transmission / reception 204, an input unit 205, a display unit 206, a microphone 207, and a UIM.
An I / F unit 208, an antenna 210, and the like are connected.

  The control unit 201 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.

The CPU calls a program stored in the storage unit 202, ROM, recording medium or the like to a work memory area on the RAM and executes it, and drives and controls each device connected via the bus 209. Various processes described later (see FIGS. 8 and 9) to be performed are realized.
The ROM is a non-volatile memory and permanently holds a computer boot program, a program such as BIOS, data, and the like.
The RAM is a volatile memory, and temporarily stores a program, data, and the like loaded from the storage unit 202, ROM, recording medium, and the like, and includes a work area used by the control unit 201 for performing various processes.

The storage unit 202 stores a control program executed by the control unit 201, data necessary for program execution, an OS (operating system), and the like. As for the program, an application program and the like corresponding to the use request unit 120 corresponding to the processing described later and the content transmission / reception unit 121 are stored.
Each of these program codes is read by the control unit 201 as necessary, transferred to the RAM, read by the CPU, and executed as various means.

  The camera 203 corresponds to an imaging unit, and inputs and acquires image data, video data, and the like.

  The transmission / reception unit 204 is a communication interface that mediates communication between the portable terminal 107 and the network 109. Between the content server 101, the encryption device 103, the content receiving device 108, and the portable terminal 107 via the network 109. Perform communication control.

  The input unit 205 inputs data, and includes an input device such as a keyboard or a numeric keypad.

The display unit 206 includes a display device such as a CRT monitor or a liquid crystal panel.
The microphone 207 corresponds to a voice input unit and acquires voice data.
UIM I / F unit 208 exchanges data with UIM card 220.

Next, the hardware configuration of the UIM card 220 will be described with reference to FIGS. FIG. 3 is a diagram showing an aspect of the data structure of the UIM card 220. As shown in FIG.
The UIM card 220 is a small contact IC card, and performs power supply and communication when the IC module terminal and the reader / writer terminal come into contact with each other. The UIM card 220 is configured by connecting a control unit 301, a storage unit 302, an input / output unit 303, and the like.

The control unit 301 includes a CPU 221, a ROM 222, and a RAM 223.
The CPU 221 calls a program stored in the storage unit 302, ROM, or the like to the work memory area on the RAM, executes it, drives and controls each connected device, and performs various processes (to be described later) performed by the UIM card 220 (FIG. 8, FIG. 9 and 10).
The ROM 222 permanently holds control programs, data, and the like, and stores, for example, a platform type OS that can add and delete applications.
The RAM 223 temporarily stores programs, data, and the like loaded from the storage unit 302, the ROM, and the like, and includes a work area that is used by the control unit 301 to perform each process.

  The storage unit 302 includes an EEPROM 224 (Electrically Erasable Programmable ROM). The EEPROM 224 is a ROM that can be electrically erased and rewritten, and data is not lost even when the power is turned off. In the EEPROM 224, a plurality of applications 225 corresponding to the platform type OS can be installed. As the application 225, an authentication application program 226 corresponding to the authentication unit 122 that authenticates the contract terminal, and an encryption / decryption application program 227 corresponding to the encryption / decryption unit 123 that encrypts / decrypts the digital content data. , Viewing data measurement application program 231, authentication information 228 for specifying a legitimate user / terminal (for example, contractor identification information), contract usage information 229 indicating a usage period, reception permission, etc. according to the contract information The attribute information disclosure level 230 of the contractor (individual) is stored.

  The input / output unit 302 transmits and receives data to and from the UIM I / F unit 208 of the portable terminal body 107.

  The data structure of the UIM card 220 is not limited to this configuration.

Next, the attribute information disclosure level 230 regarding the contractor (individual) will be described.
FIG. 4 is a diagram showing an aspect of the attribute information disclosure level 230 of the contractor (individual).
As shown in FIG. 4, for example, when the public download level is determined by a prior contract when using the music download service and when using the TV video streaming distribution service, the attribute information disclosure level 230 of the contractor (individual) is used. Is attribute information of the disclosure range of the attribute information 10 of the contractor (individual) corresponding to the distribution service. For example, the contractor (individual) attribute information 10 input from the portable terminal 107 upon contract registration includes “name”, “age”, “address”, “hobby”, “family structure”, “income”. And so on. When the music download service is used, the attribute information disclosure level 230a of the contractor: When the attribute information such as “name”, “age” and “address” of the hierarchy a is disclosed and the TV video streaming distribution service is used, Attribute information disclosure level 230b of the contractor: Attribute information such as “name”, “age”, “address”, “hobby”, “family structure”, etc. of the hierarchy b is disclosed.

Information related to individuals, (1) personal information, (2) personal disclosure information, (3) occurrence information, and (4) risk information are collectively referred to as “personal credit information”. Information (4) Risk information is not disclosed by individuals, but is information obtained in the public or in the course of transactions. For example, the approval of an information provider approved by a public institution as credit card credit information For example, the trader / service provider can use it for transaction security.
Therefore, in the present invention, (1) personal information and (2) personal disclosure information (collectively, personal attribute information) are hierarchized and stored on the UIM card 220 or the content server 101 side. The disclosure level is specified by the individual contract with, and as a result, the disclosure (disclosure) level of the personal attribute information (1) and (2) and the content characteristics, time, place, or questionnaire by the portable terminal 107 are obtained. As a result, detailed audience rating survey with purchase history and advertisement effect measurement will be realized.

  In the present invention, as a feature point, the disclosure (disclosure) level is specified by an individual contract between an individual and a trader / service provider based on an individual agreement. Check how personal attribute information provided by an individual is processed and used by a trader / service provider, and obtain the benefits (detailed product / service information according to individual hobbies and preferences) Depends on the level of disclosure (disclosure) that the individual has contracted.

FIG. 13 is a diagram showing personal credit information hierarchized based on contracts.
As shown in FIG. 13, for example, for viewing a new music version of a music download service and previewing a new movie, a public contract for the personal information 22 of the addresses 21 “0001” and “0002” of the hierarchy B with Company X is made. On the other hand, with the company Y, a public contract for the personal information 22 of the addresses 21 “0001”, “0002”, and “0003” in the hierarchy C is made. As a result, company Y is more accurate than company X, including viewing and preview audience rating results, questionnaire results, and online content sales, including personal information 22 (hobby preferences, family structure) of address 21 “0003”. It is possible to measure the advertising and sales promotion effect combined with the purchase result with the prosperous service.

  Next, the hardware configuration of the encryption apparatus 103 will be described with reference to FIG. FIG. 5 is a hardware configuration diagram of the encryption device 103.

  The encryption device 103 is configured by connecting a control unit 401, a storage unit 402, a communication control unit 403, and the like via a system bus 409. Only components related to the present invention are shown.

The control unit 401 includes a CPU, a ROM, and a RAM.
The CPU calls a program stored in the storage unit 402, ROM, recording medium, etc. to a work memory area on the RAM, executes it, controls the drive of each device connected via the system bus, and the encryption device 103 The communication means 131 to be performed, the processing corresponding to the encryption means 132, and the processing described later (refer to FIG. 12) corresponding to the viewing information totaling means 133 are realized.

  The storage unit 402 is an HDD (hard disk drive), and stores a program executed by the control unit 401, data necessary for program execution, an OS (operating system), and the like. As for the program, application programs such as a control program 393 corresponding to an OS (operating system), a viewing information totaling program 391 and an encryption program 392 executed by the encryption device 103 to which the present computer is applied are stored.

  The communication control unit 403 includes a communication control device, a communication port, and the like, and is a communication interface that mediates communication between the server 101 and the network 109. Communication between the server 101 and the portable terminal 107 is performed via the network 109. Take control.

  The system bus 409 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  Next, information stored in the storage unit 402 of the encryption device 103 will be described with reference to FIG. FIG. 6 is a diagram illustrating information stored in the storage unit 402 of the encryption device 103.

  The storage device 402 stores a viewing information database 310, a viewing information totaling program 391, an application program such as an encryption program 392, and a control program 393.

FIG. 7 is a diagram showing a data structure of the viewing information database 310.
As shown in FIG. 7, the viewing information database 310 includes a plurality of viewing information 320, a plurality of advertisement information 330, a plurality of content information 340, a plurality of advertisement audience rating information 350, and the like.

The viewing information 320 is viewing data 240 received and stored from the portable terminal 107, and includes terminal identification information 321, time information 322, viewing status information 323, contractor attribute information disclosure level 324, and the like. The terminal identification information 321 is identification information of the portable terminal 107 that has transmitted the viewing data 240, and authentication information 226 may be used. The time information 322 is time data when viewing information is measured. The viewing status information 323 is ON / OFF flag information indicating whether the digital content data 110 is being viewed. The contractor attribute information disclosure level 324 is attribute information of the disclosure range of the contractor attribute information corresponding to the distribution service.
The advertisement information 330 is management information for advertisements to be posted in the digital content data 110, and includes advertisement identification information 331, advertisement distribution time information 332, content identification information 341, and the like.
The content information 340 is content management information, and includes content identification information 341, content distribution time information 342, and the like. For example, the content is a preview / preview content.
The advertisement audience rating information 350 is the audience rating aggregation result for each advertisement calculated and aggregated by the audience information aggregation means 133.

  Note that the data structure of the viewing information database 310 is not limited to this structure.

The viewing information totaling program 391 is an executable program corresponding to the viewing information totaling means 133.
The encryption program 392 is an executable program corresponding to the encryption unit 132.
The control program 393 is a program that drives and controls each component of the computer that is the encryption apparatus 103.

  Next, the content distribution system 100 will be described with reference to FIGS.

The storage unit 202 of the portable terminal 107 stores an execution program corresponding to the control program, the use request unit 120, the content transmission / reception unit 121, and the like. The following processing of the portable terminal 107 is performed by the control unit 201 of the portable terminal 107 according to the control of these execution programs.
The ROM and storage unit 302 of the UIM card 220 store execution programs corresponding to the control program, the authentication unit 122, the encryption / decryption unit 123, and the like. The following processing of the UIM card 220 is performed by the control unit 301 of the UIM card 220 according to the control of these execution programs.

  First, the use request processing from the portable terminal 107 to the content server 101 and the contract registration processing of the content server 101 will be described with reference to FIG. FIG. 8 is a flowchart showing the processing operation of the usage request and contract registration processing.

  The control unit 201 of the portable terminal 107 transmits a request for use of contract registration to receive the digital content data distribution service to the content server 101 together with the authentication information 228 (step S801). The usage request is made at a frequency (for example, every viewing, once a month, etc.) according to the operation mode and contract details.

  The control unit of the content server 101 holds contract information corresponding to the information received with the use request from the portable terminal 107 (step S802), and the contract use indicating the use period, reception permission, etc. according to the contract information. The information 229 and the attribute information disclosure level 230 of the contractor corresponding to the distribution service are transmitted to the portable terminal 107 (step S803).

The control unit 201 of the portable terminal 107 sends the received contract usage information 229 and the contractor attribute information disclosure level 230 to the UIM card 220 (step S804).
The control unit 301 of the UIM card 220 writes and holds the received contract use information 229 and the contractor attribute information disclosure level 230 in the storage unit 302 (step S805).

  Next, a process of distributing the digital content data 110 from the content server 101 to the portable terminal 107 via the encryption device 103 will be described with reference to FIG. FIG. 9 is a flowchart showing the processing operation of the distribution process of the digital content data 110.

  The control unit of the content server 101 distributes digital content data 110 such as video and audio (step S901). For example, digital content data (streaming data) is distributed using a streaming method.

  The control unit of the encryption device 103 encrypts the digital content data 110 having a different format received from each content server 101, and sends the encrypted digital content data 111 that has been encrypted (step S902). At this time, the additional data handler 105 can further perform quality services such as additional data correction and encryption appropriate correction using the data channel 113.

The control unit 201 of the portable terminal 107 receives the encrypted digital content data 111 (step S903).
The control unit 201 performs authentication determination of the contract terminal using an authentication application corresponding to the authentication unit 122 in the UIM card 220. The control unit 301 of the UIM card 220 performs authentication based on the usage period set at the time of contract registration, contract usage information 229 indicating reception permission and the like, and authentication information 228 for identifying a legitimate user / terminal (step) S904). The control unit 301 returns the authentication result to the portable terminal 107 main body.

If authenticated (Yes in step S905), the control unit 201 of the portable terminal 107 sends the received encrypted digital content data 111 to the UIM card 220 (step S906), and the control unit 301 of the UIM card 220 Using the encryption / decryption application corresponding to the encryption / decryption means 123, the received encrypted digital content data 111 is decrypted (step S907).
The control unit 301 of the UIM card 220 sends the decompressed digital content data 110 to the main body of the portable terminal 107 (step S908).
The control unit 301 activates the viewing data measurement program 392 (step S909), and the control unit 201 of the portable terminal 107 reproduces the decompressed digital content data 110 (step S910).

  If not authenticated (No in step S905), the control unit 201 of the portable terminal 107 does not decompress the received encrypted digital content data 111. In this way, the encrypted digital content data 111 is distributed to all the portable terminals 107, but the received encrypted digital content data 111 is decompressed and reproduced only when the contract terminal is authenticated.

  The encryption / decryption method corresponding to the encryption / decryption means 123 is a matter widely performed in the computer field as with the encryption means 131 described above, and is not defined in the present invention. Japanese Patent Application Publication No. 2004-511931 discloses a method for selectively encrypting transmitted data.

Next, the processing operation of the viewing data measurement process corresponding to the viewing data measurement unit 124 activated in step S909 will be described. FIG. 10 is a flowchart showing the processing operation of the viewing data measurement process of the UIM card 220 of the portable terminal 107.
The control unit 301 of the UIM card 220 performs viewing data measurement processing in parallel with reception processing and playback processing of the digital content data 110.

  The control unit 301 of the UIM card 220 sets the authentication information 226, which is the contractor / terminal identification information, in the viewing data 240 (step S1001).

FIG. 11 is a diagram illustrating an aspect of the viewing data 240.
As shown in FIG. 11, the viewing data 240 includes a header section 241, terminal identification information 242, time information 243, viewing status information 244, contractor attribute information disclosure level 230, and the like.
The header part 241 stores a control code representing viewing data.
The terminal identification information 242 is identification information of the portable terminal 107 from which the viewing data 240 is transmitted.
The time information 243 is time data at the time of measurement.
The viewing status information 244 is ON / OFF flag information indicating whether the digital content data 110 is being viewed.
The contractor attribute information disclosure level 230 is attribute information of the disclosure range of the contractor attribute information corresponding to the distribution service.
Note that the data structure of the audience rating data 240 is not limited to this structure.

The control unit 301 of the UIM card 220 sets the current time in the time information 243 of the viewing data 240 (step S1002).
The control unit 301 sets the viewing status (ON / OFF) indicating whether or not the content is being viewed in the viewing status information 244 of the viewing data 240 (step S1003).
The control unit 301 sets the contractor attribute information disclosure level 230 in the viewing status information 244 of the viewing data 240 (step S1004).
The control unit 301 transmits the viewing data 240 to the encryption device 103 via the main body of the portable terminal 107 (step S1005).

In order to start the viewing data measurement process at a predetermined time interval (for example, 1/10 second interval), the control unit 301 sets a predetermined time to the timer value, starts the timer (step S1006), and enters the sleep state. Enter (step S1007).
After a predetermined time elapses, the control unit 301 moves to step S1002 by a timer timeout notification (step S1008), and performs measurement and transmission processing of the next viewing data 240. Thereafter, the processing from step S1002 to step S1008 is repeated.
Note that the viewing data measurement process ends the viewing data measurement process when the reception of the digital content data is completed or when the viewing data is not authenticated.

Further, the control unit 201 of the portable terminal 107 uses the camera 203 to input video data / image data and audio data from the microphone 207 to acquire digital content data 110 as input data, and a UIM card The control unit 301 of 220 encrypts the digital content data 110 that is the acquired input data, holds the generated encrypted digital content data 111 in the storage unit 202 or the like, and stores it in the other portable terminal 107 or the content receiving device 108. Send.
Authentication information 226 (for example, contractor identification information) for specifying a legitimate user / terminal is inserted into the encrypted data. For example, a live image is taken illegally and the encrypted data is distributed to the network 109. Even in such a case, the media content can be traced on the network 109 based on the contractor identification information, and the theft source is found and specified. Similarly, if the distributed encrypted digital content data 111 is illegally distributed, the media content can be tracked on the network 109, and the source of theft can be found and specified.

  Next, the processing operation of the viewing information totaling process corresponding to the viewing information totaling means 133 in the encryption apparatus 103 will be described with reference to FIG. FIG. 12 is a flowchart showing the processing procedure of the audience rating totaling process of the encryption apparatus 103.

  The storage unit 402 of the encryption device 103 stores executable programs corresponding to the communication unit 131, the encryption unit 132, the viewing information totaling unit 133, and the like. The following processing of the encryption device 103 is performed by the control unit 401 of the encryption device 103 according to the control of the executable program.

  The control unit 401 of the encryption device 103 stores the viewing data 240 received from the portable terminal 107 in the viewing information 320 of the viewing information database 310 through the communication unit 131 (step S1201). For example, when receiving data from the portable terminal 107, the control unit 401 determines the header unit 241 and stores the data in the viewing information database 310 in the case of viewing data.

The audience rating aggregation is performed as necessary, for example, for an audience rating aggregation request from the content server 101 or every predetermined period (such as once a month). The control unit 401 determines the conditions of the advertisement information 330 to be counted (at least one of advertisement identification information 331, advertisement delivery time information 332, content identification information 333, etc.) or content information 340 (content identification information 341, content Viewing information 320 that matches at least one of the delivery time information 342 and the like) is extracted (step S1202).
The control unit 401 calculates the viewing rate of the advertisement / content based on the viewing status information 323 of the extracted viewing information 320 and the attribute information disclosure level 324 of the contractor, and analyzes the viewing tendency (step S1203).
The control unit 401 stores the calculated audience rating, viewing tendency, count result, advertisement information 330, and the like in the rating rating total information 350 (step S1204).
The control unit 401 transmits the audience rating total information 340 to the content server 101 corresponding to the content identification information 341 of the advertisement information 330 / content information 340 (step S1205).

In this embodiment, advertisement / content identification information, delivery time information, etc. are stored in advance as advertisement information / content information in the database, and the time information of the viewing data is matched with the elements of the advertisement information / content information. Although the audience rating is calculated, the method is not limited to this method.
In this embodiment, the encryption apparatus 103 has the viewing information totaling program 392 and executes the audience rating totaling process. However, the present invention is not limited to this. For example, additional data connected to the encryption apparatus 103 is used. A viewing information totaling program may be installed in the handler 105 and executed.

  As described above, according to the embodiment of the present invention, the portable terminal 107 stores the authentication information 228 for specifying the authorized user / terminal in the UIM card 220 in advance and uses it for the content server 101. Usage request means 120 for writing contract usage information 229 corresponding to the contract contents for receiving distribution of digital content data received from the content server in response to the request, and attribute information disclosure level 230 of the contractor to the UIM card 220, and the content server 101 And receiving means 121 for receiving encrypted digital content data via the encryption device 103. The UIM card 220 authenticates the contract terminal based on the contract use information 229 and the authentication information 228. Authentication means 122 and the encrypted data received from content server 101 The encryption / decryption means 123 for decrypting the digital content data and the viewing data 240 indicating the viewing status of the digital content data are added with the attribute information disclosure level 230 of the contractor to the encryption device 103 at predetermined time intervals. Viewing information measuring means 124 for transmission, and the encryption apparatus 103 receives from each portable terminal and encryption means 132 for encrypting the different kinds of digital content data 110 distributed from each content server 101. Viewing information totaling means 133 for accumulating viewing information, calculating a viewing rate related to the advertisement distributed together with the digital content data and the digital content data based on the viewing information and the attribute information disclosure level of the contractor, and analyzing viewing tendency; Prepares and conducts a viewing survey of the digital content to be distributed and its posted advertisements.

As a result, in the distribution of multimedia content such as video and audio over the network, it is possible to provide viewing status and viewing tendency of content (for example, preview / trial listening content) and advertisements to be posted, enabling effective and real-time viewing rate surveys, The advertising effect can be enhanced.
In addition, the audience rating totaling process that enables the audience rating survey to be performed in the existing system configuration by executing the audience rating counting process in the encryption device 103, and newly collects and counts the viewing data from the receiving device. It is not necessary to install the video, and the cost burden on the audience rating survey is reduced.
Furthermore, based on individual agreements, by specifying the disclosure (disclosure) level in individual contracts between individuals and traders / service providers, viewing and preview audience rating results, questionnaire results, and online content sales It becomes possible to measure the effect of advertising and sales promotion combined with purchase results with a service that has become popular.

In this embodiment, advertisement / content identification information, delivery time information, etc. are stored in advance as advertisement information / content information in the database, and the time information of the viewing data is matched with the elements of the advertisement information / content information. Although the audience rating is calculated, the method is not limited to this method.
In this embodiment, the encryption apparatus 103 has the viewing information totaling program 392 and executes the audience rating totaling process. However, the present invention is not limited to this. For example, additional data connected to the encryption apparatus 103 is used. A viewing information totaling program may be installed in the handler 105 and executed.
In the present embodiment, an executable program corresponding to the viewing information measuring unit 124 is stored in the UIM card, but the present invention is not limited to this. For example, it may be stored in a memory card or storage unit 202 and executed.

  The programs for performing the processes shown in FIGS. 8, 9, 10, 10 and 12 may be distributed on a recording medium such as a CD-ROM, or may be transmitted and received via a communication line. You can also.

  The preferred embodiments of the content distribution system and the like according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these are naturally within the technical scope of the present invention. Understood.

The block diagram which shows the structure of the content delivery system 100 which concerns on this Embodiment. Hardware configuration diagram of portable terminal 107 including UIM card 220 The figure which shows the one aspect | mode of the data structure of UIM card 220 The figure which shows the one aspect | mode of the attribute information disclosure level 230 of a contractor Hardware configuration diagram of the encryption device 103 The figure which shows the information which the memory | storage part 402 of the encryption apparatus 103 hold | maintains The figure which shows the data structure of the viewing-and-listening information database 310. Flow chart showing processing operation of usage request and contract registration processing The flowchart which shows the processing operation | movement of the delivery process of the digital content data 110 Flowchart showing the processing operation of the viewing data measurement processing of the UIM card 220 of the portable terminal 107 The figure which shows the one aspect | mode of the viewing-and-listening data 240 The flowchart which shows the process sequence of the audience rating total process of the encryption apparatus 103. Diagram showing personal credit information hierarchized based on contract

Explanation of symbols

100 ......... Content distribution system 101 ......... Content server 103 ......... Encryption device 105 ......... Additional data handler 107 ......... Portable terminal 108 ......... Content receiver 109 ......... Network 110 ......... Digital content data 111... Encrypted digital content data 113... Data channel 120... Usage request means 121... Content transmission / reception means 122 ... Authentication means 123 ... Encryption / decryption means 124 ... ...... Trial listening data measuring means 131, 141 ......... Communication means 132 ......... Encryption means 133 ......... Viewing information totaling means 142 ......... Contract registration means 201, 301, 401 ......... Control units 202, 302, 402 ......... Storage unit 208 ......... UIM I / F unit 220 ......... UIM car 228 .... Authentication information 229 ......... Contract usage information 230, 324 ......... Contractor attribute information disclosure level 303 ......... Input / output unit 240 ......... Viewing data 241 ......... Header unit 242 ......... Terminal Identification information 243 ... Time information 244, 323 ... Viewing status information 310 ... Viewing information database 320 ... Viewing information 321 ... Terminal identification information 322 ... Time information 330 ... Advertising information 331 ......... Advertisement identification information 332 ......... Advertisement delivery time information 340 ......... Content information 341 ......... Content identification information 342 ......... Content delivery time information 350 ......... Viewing rate aggregation information 391 ......... Viewing information aggregation Program 392 ... Encryption program

Claims (12)

Digital content connected via a network to at least one content server that distributes digital content data and an encryption device that encrypts digital content data in different formats distributed from the content server. A portable terminal equipped with a UIM (User Identity Module) card for reproducing data,
Storage means for storing authentication information for identifying the authorized user / terminal in the UIM card;
The UIM is used to transmit the authentication information together with the use request to the content server, and to set the contract use information and the contractor attribute information disclosure level according to the contract contents for receiving the distribution of the digital content data received from the content server. Use request means stored in the card;
Content receiving means for receiving encrypted digital content data distributed from the content server and through the encryption device;
Authentication means for authenticating the contract terminal based on the contract use information and the authentication information for the received encrypted digital content data;
Decrypting means for decrypting the received encrypted digital content data when authenticated by the authenticating means ;
Playback means for playing back the decrypted digital content data;
Viewing information measuring means for adding the attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data reproduced by the reproducing means and transmitting it to the encryption device at a predetermined time interval;
A portable terminal comprising: The contract usage information, use period in accordance with the contract information, a portable terminal according to claim 1, characterized in that it comprises at least one of information indicating the reception permission. Furthermore, it is connected to other content receiving devices via the network,
Authentication information for identifying authorized users / terminals,
Input means for inputting digital content data of video, image, or audio;
Encryption means for encrypting input digital content data and generating encrypted digital content data with the authentication information added thereto;
Content transmitting means for transmitting encrypted digital content data to the content receiving device;
The portable terminal according to claim 1, further comprising: 4. The portable terminal according to claim 3 , wherein the content receiving device is a personal computer, a portable terminal , a set top box, or an in-vehicle terminal . The viewing information, the identification information of the portable terminal, current time information, viewing status information indicating whether or not the viewing of claim 1, wherein the having attribute information disclosure level of the contractor Portable terminal . The portable terminal according to any one of claims 1 to 5, wherein the attribute information disclosure level of the contractor is attribute information of a disclosure range of the attribute information of the contractor according to the distribution service. The portable terminal according to any one of claims 1 to 6 , wherein the digital content data is streaming data. At least one content server for distributing digital content data, an encryption device for encrypting digital content data in different formats distributed from the at least one content server, and at least for reproducing the distributed digital content data A content distribution system in which a portable terminal having one UIM card is connected via a network,
The portable terminal is
Storage means for storing authentication information for identifying the authorized user / terminal in the UIM card;
The UIM is used to transmit the authentication information together with the use request to the content server, and to set the contract use information and the contractor attribute information disclosure level according to the contract contents for receiving the distribution of the digital content data received from the content server. Use request means stored in the card;
Content receiving means for receiving encrypted digital content data distributed from the content server and through the encryption device;
Authentication means for authenticating the contract terminal based on the contract use information and the authentication information for the received encrypted digital content data;
Decrypting means for decrypting the received encrypted digital content data when authenticated by the authenticating means ;
Playback means for playing back the decrypted digital content data;
Viewing information measuring means for adding the attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data reproduced by the reproducing means at a predetermined time interval and transmitting it to the encryption device;
With
The encryption device is:
Encryption means for encrypting and sending digital content data in different formats received from the content server;
The viewing information added with the contractor attribute information disclosure level received from the portable terminal is accumulated, and the digital content data and / or the digital content is based on the viewing information and the contractor attribute information disclosure level. Audience information aggregation means for aggregating audience information related to advertisements distributed together with data;
A content distribution system comprising: The content server
In response to the usage request from the portable terminal, the contract usage information corresponding to the contract content for receiving the digital content data distribution service and the contractor attribute information disclosure level is set to the portable terminal. Contract registration means to send to
The content distribution system according to claim 8 , further comprising: Digital content connected via a network to at least one content server that distributes digital content data and an encryption device that encrypts digital content data in different formats distributed from the content server. A UIM card provided in a portable terminal for reproducing data,
Authentication information for identifying authorized users / terminals,
Contract usage information corresponding to the contract content for receiving the distribution of the digital content data;
Storage means for storing the attribute information disclosure level of the contractor according to the contract content for receiving the distribution of the digital content data ;
Authentication means for authenticating a contract terminal based on the contract use information and the authentication information for the encrypted digital content data distributed from the content server;
Decryption means for decrypting the encrypted digital content data received from the portable terminal;
Encryption means for encrypting digital content data received from the portable terminal and generating encrypted digital content data with the authentication information added thereto;
Viewing information measuring means for adding the attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data to be reproduced and sending it to the portable terminal body at a predetermined time interval;
A UIM card characterized by comprising: On the computer ,
A storage step for controlling storage of authentication information for identifying an authorized user / terminal;
Use of transmitting the authentication information together with the use request to the content server, and storing the contract use information and the contractor attribute information disclosure level according to the contract contents for receiving the distribution of the digital content data received from the content server A request step;
A content receiving step for receiving encrypted digital content data distributed from the content server and through an encryption device;
An authentication step for authenticating the contract terminal based on the contract usage information and the authentication information for the received encrypted digital content data;
A decryption step of decrypting the received encrypted digital content data if authenticated by the authentication step;
A reproduction step of reproducing the decrypted digital content data;
Viewing information measurement step of adding attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data reproduced by the reproduction step and transmitting it to the encryption device at a predetermined time interval;
A program that executes processing including A storage step for controlling storage of authentication information for identifying an authorized user / terminal;
Use of transmitting the authentication information together with the use request to the content server, and storing the contract use information and the contractor attribute information disclosure level according to the contract contents for receiving the distribution of the digital content data received from the content server A request step;
A content receiving step for receiving encrypted digital content data distributed from the content server and through an encryption device;
An authentication step for authenticating the contract terminal based on the contract usage information and the authentication information for the received encrypted digital content data;
A decryption step of decrypting the received encrypted digital content data if authenticated by the authentication step;
A reproduction step of reproducing the decrypted digital content data;
Viewing information measurement step of adding attribute information disclosure level of the contractor to the viewing information indicating the viewing status of the digital content data reproduced by the reproduction step and transmitting it to the encryption device at a predetermined time interval;
A recording medium on which a computer-readable program is recorded .

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