Kabushiki Kaisha Toshiba

Takeshi Saito

Hiroshi Isozaki

Taku Kato

Tatsuyuki Matsushita

Tooru Kamibayashi

Hideaki Nakakita

Kiyoshi Toshimitsu

Keiji Tsunoda

Hideo Ando

Shinichiro Koto

Hisashi Yamada

Mikio Hashimoto

Toru Kambayashi

Yoshikazu Hanatani

Takeshi Ishihara

Takahiro Yamada

Yasuhiro Katsube

Keiichi Teramoto

Yoshiaki Takabatake

Hiroyuki Aizu

Yoshiki Terashima

Hisako Tanaka

Naoki Ogura

Yasuyuki Kozakai

Koji Kanazawa

Shuichi Kyuma

A management apparatus according to an embodiment is connected to a measurement apparatus deployed for each user via a first network. The management apparatus is connected to a service providing apparatus via a second network. The management apparatus includes a first communication device, a second communication device and one or more first processors. The first processors generate seed information using a service providing apparatus identifier. The first processors generate a user key using a measurement apparatus individual key, and the seed information. The first communication device transmits the generated seed information to the measurement apparatus via the first network. The second communication device transmits the generated user key to the service providing apparatus via the second network.

Management apparatus, measurement apparatus, service providing apparatus, computer program product, transfer system, and transfer method

An AV communication control circuit suitable for a radio LAN-LSI in a radio AV transmission/reception device is formed by a copyright protection processing unit configured to carry out a copyright protection processing with respect to AV data entered from an AV stream signal line, a selection unit configured to select either one of AV data entered from an AV stream signal line through the copyright protection processing unit and AV data entered from a general purpose bus, and a transmission control unit configured to carry out control for transmitting AV data selected by the selection unit to a network.

AV communication control circuit for realizing copyright protection with respect to radio LAN

The other communication devices are prohibited to transmit the address initialization request for a prescribed period of time since one communication device transmitted the address initialization request for an address managed by a control protocol, so that the conflict of the initialization requests for the same address will not occur and the problem of assigning the address in overlap to the communication devices will not arise. Also, the other communication devices are prohibited to transmit the address server detection request packet for a prescribed period of time since one communication device transmitted the address server detection request packet, so that the conflict on the network by a plurality of address server detection requests will not occur, and it is possible to determine the MAC address server uniquely.

Communication scheme with arbitration mechanism for cases of address initialization and server setting

An information processing system in which information transfers between communication devices through a network is limited within a prescribed range by registering unique information obtainable within the prescribed range into each device and permitting information transfer between devices which share common unique information, where the unique information is formed by a pair of public and secret unique information, a bridge device is controlled such that, upon receiving a proxy check request from a reception device, whether a transmission device is another bridge device or not is judged when the public unique information registered by the reception device is registered in the bridge device and one public unique information registered in the bridge device is registered by the transmission device. Then, the secret unique information registered by the reception device is transmitted to the transmission device when the transmission device is not another bridge device.

Information processing scheme for realizing contents transfer and copyright protection

A wireless base station which controls joining of a plurality of wireless terminals to a wireless network, stores a maximum joining possible terminal number which indicates a maximum number of the wireless terminals of each terminal type that can join the wireless network simultaneously, and which is set in advance for each one of a plurality of terminal types that classify the wireless terminals, and a currently joining terminal number which indicates a number of the wireless terminals of each terminal type that are currently joining the wireless network, for each one of the plurality of the terminal types. Then, the wireless base station judges whether the joining of one wireless terminal of one terminal type which sent a request message to the wireless network is permitted or not, according to the maximum joining possible terminal number for the one terminal type and the currently joining terminal number stored for the one terminal type.

Transmitting device for transmitting contents with copyright protection

An outside DTCP bridge for relaying information between an outside communication device connected to an outside network and a home communication device connected to a home network, carries out a first authentication and key exchange processing for purpose of copyright protection between the outside DTCP bridge and the home communication device as well as a second authentication and key exchange processing for purpose of copyright protection between the outside DTCP bridge and the outside communication device, and stores an identification information of the outside communication device. Then, transmission/reception of information between the home network and the outside network is carried out only when the outside communication device which made the access request is stored and both the first authentication and key exchange processing and the second authentication and key exchange processing succeed.

Communication scheme using outside DTCP bridge for realizing copyright protection

An information-processing device includes a first interface configured to transmit content through a network to a first communication unit having a first unique identification, a second interface configured to receive a second unique identification allocated to a second communication unit, a first storage area configured to store the second unique identification through the second interface, a first judgment unit configured to determine whether the first unique identification received through the first interface is stored in the first storage area, a content supply unit configured to transmit the content to the first communication unit via the first interface when the first judgment unit determines that the first unique identification is stored in the first storage area, a second storage area configured to store a third unique identification allocated to a third communication unit during the content supply unit transmits the content and a management unit configured to delete all unique identifications from the first storage area and shift the third unique identification from the second storage area to the first storage area when the content supply unit has transmitted the content to the first communication unit completely.

Information-processing device, information-processing method, and information-processing program product

An information-processing device includes a first interface configured to transmit content to a first communication unit through a network, a second interface configured to receive a first unique identification allocated to the first communication unit from a second communication unit and transmit a second unique identification allocated to the information-processing device to the second communication unit, an identification list configured to store at least one unique identification through the second interface and an identification judgment unit configured to determine whether the first unique identification received through the first interface is stored in the identification list, wherein when the identification judgment unit determines that the unique identification of the first communication unit is stored in the identification list, the first interface allows the content to be transmitted to the first communication unit.

Information-processing device

An aspect of the present invention provides an information communication device for transmitting electronic data encrypted for the purpose of copyright protection, the device includes that an identification information managing unit configured to hold device identification information in connection with other information communication devices acquired through a network, an ID registration processing unit configured to register the device identification information of another connection device when the other communication device satisfies a predetermined distance condition or when common identification information that is held by both information communication devices is received from a portable device, and an authentication and key exchange processing unit configured to, for the purpose of copyright protection, complete authentication and key exchange process (AKE process) only when another information communication device whose device identification information is registered in the identification information managing unit.

Information communication device, information communication system, and computer program product for transmission control

In a contents transmission/reception system, the transmission of the contents to the corresponding reception device is permitted only in the case where the device identification information searched out by the device identification information search unit and the device identification information registered by the device identification information registration unit coincide, so that it is possible to provide the contents only to the limited reception devices, and it is possible to prevent the illegal reception of the contents.

Contents transmission/reception scheme with function for limiting recipients

Wireless communication scheme with communication quality guarantee and copyright protection

In a system for transferring an analog video signal which contains command information and the like in vertical blanking interval VBI between master and slave devices via an analog line, information (bits to ) having a word configuration (words to &plus;CRCC) consisting of a predetermined number of bits (variable within the range from 5 bits to 80 bits) is superposed in a predetermined period (49.1 &mgr;s) of a predetermined VBI line (line number ) at a predetermined clock (fsc/32 to fsc/2). In this manner, device which are interconnected via an analog video signal line can transfer information having various contents/lengths that can be changed in correspondence with a partner connected using vertical blanking interval VBI.

Device interconnect system using analog line

A router device for controlling label switching path set up is disclosed. In the router device, a,policy information indicating a permitted starting point of a label switching path is stored, and a request message that contains a starting point information indicating a starting point node/network of the requested label switching path and a stream information indicating a desired packet stream to be transferred through the requested label switching path is received. Then, whether or not to permit the set up of the requested label switching path is judged by comparing the starting point information contained in the request message with the stored policy information, and the requested label switching path through the router device for the desired packet stream indicated by the stream information contained in the request message is set up when the set up of the requested label switching path is judged as permitted. Instead of the starting point information, a neighbor information, a stream information, or an ending point information may be used.

Growing community of inventors

Meguro-ku, Japan

Takeshi Saito