Abstract:
[PROBLEMS] To safely and easily perform power cable communication with a server providing a desired service. [MEANS FOR SOLVING PROBLEMS] There is provided a communication relay device for relaying communication data between an information processing device and a communication network by utilizing a power cable where a communication signal is superimposed on a power signal. The communication relay device includes: an authentication information storage unit for storing authentication information for the communication relay device; a power plug which can be detachably attached to w power socket for connecting an electric device to the power cable; a connection detection unit for detecting that the power plug is connected to the power socket; an authentication unit for transmitting authentication information to the server via the power cable if the power plug is connected tot he power socket so that the server authenticates the communication relay device; and a communication relay unit for relaying the communication data from the information processing device for the communication network if the authentication by the authentication unit is sucessful.
Abstract:
[PROBLEMS] To safely provide only unused band of a communication line contractor to a third person for free. [MEANS FOR SOLVING PROBLEMS] A communication device (20) radio-communicates with each of information processing devices and connects each of the information processing devices to a communication line provided by an ISP (Internet service provider). The communication device (20) includes: a contractor terminal judgment unit (200) for judging whether each of the information processing devices is managed by an ISP contractor who is allowed to install the communication device and connect it to the communication terminalaccording to the contract with the ISP; and a communication unit (210) for radio-communicating with each of the information processing devices by setting the contractor terminal as an information processing device managed by the contractor with a higher priority than a non-contractor terminal as an information processing device which is not a contractor terminal.
Abstract:
PROBLEM TO BE SOLVED: To promote utilization of a communication line by calculating a reasonable communications charge to be charged on each user, when secondary utilization of the communication line to be offered as communication service is permitted. SOLUTION: A communication relay system 20 is provided for offering communication service for connecting a communication device to an existing communication network. The relay system 20 includes a communication relay 200 which relays communication between the communication network and a primary communication device which is connected to a predetermined primary communication line and is used by a contractor, by connecting the primary communication device 30 to the communication network; an account DB 25 for recording a communication charge to be charged for communication of the primary communication device with the communication relay system via the primary communication line; and a charger 260 which reduces the amount of the communication charge recorded on the account DB 25, on condition that another contractor connects a secondary communication device to the primary communication device, and connects it to the communication network via the primary communication line in the relay 200. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a display device for displaying an optimum image corresponding to an external environment for a user.SOLUTION: A display device comprises: a reading unit that reads an image pattern on a physical medium; an acquisition unit that acquires a state parameter of an external environment acquired by an environment sensor for sensing an environment around the display device; a shooting unit that shoots the physical medium to generate a captured image; and a display unit that displays a display object which is to be presented to a user and is determined based on the read image pattern with the captured image in an overlapped manner. The display object displayed with the captured image in an overlapped manner changes according to the state parameter of the external environment.
Abstract:
PROBLEM TO BE SOLVED: To provide a device establishing encryption communication to a communication apparatus for performing power line transmission by a simpler operation than before. SOLUTION: The device according to the present invention performs transmission setting for a first and a second communication systems having a function to superimpose a transmission signal on an electric power signal for communications. The device comprises: a power receiving plug for receiving electric power via an external power supply socket; at least one power supply socket for supplying the electric power received via the power receiving plug to the first and the second communication systems, a signal filter for shutting off a transmission signal propagating a power line between the power receiving plug and the power supply socket; an encryption key acquiring portion for acquiring an encryption key used for encryption communication between the first and the second communication systems or authentication from the first communication system connected to the power supply socket; and an encryption key transmitting portion for transmitting the encryption key acquired by the encryption key acquiring portion to the second communication system connected to the power supply socket. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To detect a watermark image described in a printed matter at precision higher than in the conventional case and to display the watermark image so that it is easy to make a user recognize it. SOLUTION: This display device which extracts and displays the watermark image described in an object to be photographed is provided. The display device is provided with a first photography part which generates a first image by photographing the object to be photographed, a second photography part which generates a second image by photographing the object to be photographed including a watermark image preliminarily described in the object to be photographed and which is not detected by photography of the first photography part and a watermark image extraction part which extracts the watermark image from the second image based on the first and second images. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To secure the security of communication by preventing or the like the leakage and falsification of information by detecting a false communication network or a false server. SOLUTION: In the information processing system 10, a portable telephone acquires a setting program of security securement setting for securing the security of the communication by authenticating as a communication destination in a communication line, in which the security is not secured, from a registration server via a first secure communication line. An information processor executes the security securement setting by executing the setting program acquired from the portable telephone and makes communication with a relay server via a second insecure communication line. The registration server receives the access from the portable telephone via the first communication line, authenticates a user, and transmits the setting program to the portable telephone. The relay server executes the security securement setting by authenticating the information processor when receiving a communication request from the information processor, and relays the access from the information processor to the communication network via the second communication line. COPYRIGHT: (C)2006,JPO&NCIPI