RECEIVING DEVICE, TRANSMITTING DEVICE, BROADCASTING SYSTEM, RECEIVING METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM

• US 20130312059A1
• Filed: 01/31/2012
• Published: 11/21/2013
• Est. Priority Date: 01/31/2011
• Status: Active Grant

• Current Assignee: Nippon Hoso Kyokai
• Original Assignee: Nippon Hoso Kyokai
• Inventors: Otsuki, Kazuhiro, Ohmata, Hisayuki, Majima, Keigo, Fujii, Arisa, Inoue, Tomoyuki
• Granted Patent: US 9,003,482 B2
• Time in Patent Office: Days
• US Class Current: 726/1
• CPC Class Codes: G06F 21/554 involving event detection and direct action
• CPC Class Codes: G06F 21/629 to features or functions of an application
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: G06F 2221/2141 Access rights, e.g. capability lists, access control lists, access tables, access matrices
• CPC Class Codes: H04H 60/13 Arrangements for device control affected by the broadcast information
• CPC Class Codes: H04H 60/14 Arrangements for conditional access to broadcast information or to broadcast-related services
• CPC Class Codes: H04H 60/15 on receiving information
• CPC Class Codes: H04H 60/16 on playing information
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04N 21/4542 Blocking scenes or portions of the received content, e.g. censoring scenes
• CPC Class Codes: H04N 21/8133 specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
• CPC Class Codes: H04N 21/8173 End-user applications, e.g. Web browser, game
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed

Abstract

A receiving device includes: an output unit configured to output content broadcast from a transmitting device; an application execution unit configured to execute an application; a security policy acquiring unit configured to acquire security policy level data sent from the transmitting device with respect to the application, the security policy level data indicating a sorted level of the application; a policy level acquiring unit configured to acquire policy level data sent from the transmitting device with respect to currently broadcast content, the policy level data indicating a sorted level of the currently broadcast content; a determining unit configured to determine whether or not the application is an application to be controlled, based on the policy level data acquired by the policy level acquiring unit and the security policy data of the application acquired by the security policy acquiring unit; and an application control unit configured to instruct the application execution unit to control the application determined to be the application to be controlled.

Claims

1. A receiving device comprising:

an output unit configured to output content broadcast from a transmitting device;

an application execution unit configured to execute an application;

a security policy acquiring unit configured to acquire security policy level data sent from the transmitting device with respect to the application, the security policy level data indicating a sorted level of the application;

a policy level acquiring unit configured to acquire policy level data sent from the transmitting device with respect to currently broadcast content, the policy level data indicating a sorted level of the currently broadcast content;

a determining unit configured to determine whether or not the application is an application to be controlled, based on the policy level data acquired by the policy level acquiring unit and the security policy data of the application acquired by the security policy acquiring unit; and

an application control unit configured to instruct the application execution unit to control the application determined to be the application to be controlled.

2. The receiving device according to claim 1, wherein the policy level acquiring unit is configured to acquire a relationship between a broadcast schedule of content and the security policy level data of the application, the relationship being transmitted from the transmitting device, and

the determining unit is configured to determine whether or not the application is the application to be controlled based on the policy level data of the currently broadcast content acquired by the policy level acquiring unit and the security policy level data of the application read from the storage unit in association with the currently broadcast content.

3. The receiving device according to claim 2, further comprising:

a policy management unit configured to acquire a broadcast schedule of content and the policy level of the content which are transmitted from the transmitting device, and write the broadcast schedule and the policy level in a storage unit,

wherein the determining unit is configured to determine current policy level data based on the policy level date of the currently broadcast content acquired by the policy level acquiring unit and the policy level data read from the storage unit in association with the currently broadcast content, and determine whether or not the application is the application to be controlled based on the current policy level data determined and the security policy level data of the application.

4. A transmitting device comprising:

a broadcast sending unit configured to broadcast a broadcast signal to which content is set; and

a data communication unit configured to transmit data by communication,

wherein security policy level data indicating a sorted level of an application is broadcast by the broadcast sending unit using the broadcast signal, or is transmitted by the data communication unit executing communication, and

policy level data indicating a sorted level of currently broadcast content is broadcast by the broadcast sending unit using the broadcast signal or is transmitted by the data communication unit executing communication.

5. A broadcasting system comprising:

a transmitting device configured to broadcast content; and

a receiving device configured to receive and output the content broadcast,

wherein the transmitting device comprises;

a sending unit configured to send security policy level data indicating a sorted level of an application, and policy level data indicating a sorted level of currently broadcast content, and

the receiving device comprises;

an application execution unit configured to execute an application;

a security policy acquiring unit configured to acquire the security policy level data sent from the transmitting device with respect to the application;

a policy level acquiring unit configured to acquire the policy level data sent from the transmitting device with respect to the currently broadcast content;

a determining unit configured to determine whether or not the application is an application to be controlled, based on the policy level data acquired by the policy level acquiring unit and the security policy data of the application acquired by the security policy acquiring unit; and

an application control unit configured to instruct the application execution unit to control the application determined to be the application to be controlled.

6. A non-transitory computer-readable recording medium storing a program to be executed by a computer of a receiving device to perform:

outputting content broadcast from a transmitting device;

executing an application;

acquiring security policy level data sent from the transmitting device with respect to the application, the security policy level data indicating a sorted level of the application;

acquiring policy level data sent from the transmitting device with respect to currently broadcast content, the policy level data indicating a sorted level of the currently broadcast content;

determining whether or not the application is an application to be controlled, based on the policy level data and the security policy data of the application acquired; and

controlling the application determined to be the application to be controlled.

7. A receiving method comprising:

outputting content broadcast from a transmitting device;

executing an application;

acquiring security policy level data sent from the transmitting device with respect to the application, the security policy level data indicating a sorted level of the application;

acquiring policy level data sent from the transmitting device with respect to currently broadcast content, the policy level data indicating a sorted level of the currently broadcast content;

determining whether or not the application is an application to be controlled, based on the policy level data and the security policy data of the application acquired; and

controlling the application determined to be the application to be controlled.