COMMUNICATION NETWORK SYSTEM, GATEWAY, DATA COMMUNICATION METHOD AND PROGRAM PROVIDING MEDIUM

• US 20120311190A1
• Filed: 07/25/2012
• Published: 12/06/2012
• Est. Priority Date: 03/02/2000
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: KAWAMOTO, Youji, FUTAGAMI, Motomasa, NAGANO, Motohiko
• Granted Patent: US 8,612,630 B2
• Time in Patent Office: Days
• US Class Current: 709/249
• CPC Class Codes: G06F 21/62 Protecting access to data via a platform, e.g. using keys or access control rules
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2836 Protocol conversion between an external network and a home network controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2012/2849 Audio/video appliances
• CPC Class Codes: H04L 61/4552 Lookup mechanisms between a plurality of directories; Synchronisation of directories, e.g. metadirectories
• CPC Class Codes: H04L 61/4557 Directories for hybrid networks, e.g. including telephone numbers
• CPC Class Codes: H04L 63/0435 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption cryptographic mechanisms or cryptographic arrangements for symmetric key encryption H04L9/06
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/101 Access control lists [ACL]
• CPC Class Codes: H04L 65/102 Gateways arrangements for connecting between networks having differing types of switching systems, e.g. gateways, H04L12/66
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion

Abstract

This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.

Claims

1. A home gateway, comprising:

an interface unit configured to communicate with two communication networks;

a storage unit configured to store a program data executed at a terminal connected to one of the two communication networks; and

a registration unit configured to register a user identification information or a device identification information in the storage unit,

wherein the home gateway requests transmission of an access request and a user identification information or a device identification information, authenticates the user identification information or the device identification information and determines whether or not the user identification information or the device identification information is allowed for receiving the program data.