摘要:
A tag (1) can be split into a tag A (1-a), a tag B (1-b), and a tag C (1-c). The tag A includes a memory portion (A31). The tag B includes a memory portion (B32). In the tag C are included a memory portion (C33), an input/output interface portion (34), and a control portion (35). The input/output interface portion (34) forms an interface for exchanging data with an outside reader/writer device (not shown). The control portion (35) control functions of a tag upon receiving a request input from the input/output interface portion (34). Further, a split line (36) is provided between the tag A and tag B, and both tags can be split at this line. A split line (37) is provided between the tag B and tag C, enabling both tags to be split at this line, which makes tag data tampering difficult and work simpler.
摘要:
A tag (1) can be split into a tag (A(1-a)), a tag (B(1-b)), and a tag (C (1-c)). In the tag (A), a memory portion (A31) is included. In the tag (B), a memory portion (B32) is included. In the tag (C), a memory portion (C33), an input/output interface portion (34), and a control portion (35) are provided. The input/output interface portion (34) forms an interface for exchanging data with an external reader/writer device (not shown). The control portion (35) receives a request inputted thereto from the input/output interface portion (34) and controls the function of the tag. A split line 36 is provided between the tags (A) and (B) to allow detachment between the two tags therealong. A split line 37 is provided between the tags (B) and (C) to allow detachment between the two tags therealong. The arrangement makes it difficult to falsify data in the tag and enables an easier operation.
摘要:
A foreign gateway (FGW) (105) of the present invention obtains, via a terminal device (107), authentication information which proves access authority with respect to a home gateway (HGW) (104). In a case where a player (106) plays back content stored in a media server (103), the FGW (105) is allowed to access the HGW (104) by presenting the authentication information to the HGW (104). If, after the content is viewed and listened to by a user, a certain condition is satisfied (a communication is interrupted between the FGW (105) and the mobile terminal (107), for example), the FGW (105) requests the HGW (104) not to permit access from the FGW (105), and the HGW (104) stops permitting the access from the FGW (105). This makes it possible to realize a gateway device which prevents unintended access from outside by nullifying, at appropriate timing, the access authority of a device outside a network to which the gateway device belongs.