摘要:
A data transmitting node and a network inter-connection node suitable for use in the home network environment. In a case of transmitting information data from a data transmitting node connectedwith a physical network to a receiving node connected with the physical network or another physical network, a data transmitting node transmits the control message including an IP address information of a data transmission destination, a header/channel information dependent on the physical network, and an information indicating that the information data to be transmitted according to the header/channel information is data in an upper layer of an IP layer. The information data is then transmitted to the receiving node, where the information data contains the header/channel information and data of the upper layer without IP packet encapsulation. A network inter-connection node operates similarly.
摘要:
In a microprocessor (101) that internally has a microprocessor specific secret key, a key management unit (701) is provided to carry out a key registration for reading out from an external memory a distribution key that is obtained in advance by encrypting the instruction key by using a public key corresponding to the secret key, decrypting the distribution key by using the secret key to obtain the instruction key, and registering the instruction key in correspondence to a specific program identifier for identifying the program into a key table, and to notify a completion of the key registration to the processor core (201) asynchronously by interruption when the key registration is completed.
摘要:
The disclosed communication node has a function for recognizing one communication node (3110) on the first network as one of constituent elements (3130) in own communication node, and a function for disclosing an own configuration information regarding the constituent elements as recognized above, to another communication node (3110) on the second network. Also, the disclosed communication terminal has a function for disclosing functions in the own communication terminal as Sub Units in an AV/C (Audio/Visual Control) protocol executed on an IEEE 1394 bus, and a function for receiving at least a part of information regarding Sub Units existing in the communication node (3110) on the second network with which it is communicating. Together, these communication node (3110) and communication terminal make it possible to transmit various information transferred on the IEEE 1394 bus, to the radio node (3120) that is connected by the radio interface, and it becomes possible to execute the data communications as if the connection to the IEEE 1394 bus is made by the radio interface.
摘要:
A data transfer control device and a relay device which are suitable for use in the home network environment. For a case of controlling transfer of information data to a receiving node connected with a first physical network from a transmitting node connected with a second physical network, there is provided a data transfer control device connected with the second physical network which has: an establishing unit for establishing a channel in the second physical network for transmitting the information data; a reserving unit for reserving a communication path for transferring the information data transmitted through that channel to another data transfer control device belonging to the first physical network and/or the receiving node; and a commanding unit for commanding the transmitting node to transmit the information data through that channel, by using a protocol depending on the second physical network.
摘要:
A data transfer control device and a relay device which are suitable for use in the home network environment. For a case of controlling transfer of information data to a receiving node connected with a first physical network from a transmitting node connected with a second physical network, there is provided a data transfer control device connected with the second physical network which has: an establishing unit for establishing a channel in the second physical network for transmitting the information data; a reserving unit for reserving a communication path for transferring the information data transmitted through that channel to another data transfer control device belonging to the first physical network and/or the receiving node; and a commanding unit for commanding the transmitting node to transmit the information data through that channel, by using a protocol depending on the second physical network.
摘要:
A data transmitting node and a network inter-connection node suitable for use in the home network environment. In a case of transmitting information data from a data transmitting node connectedwith a physical network to a receiving node connected with the physical network or another physical network, a data transmitting node transmits the control message including an IP address information of a data transmission destination, a header/channel information dependent on the physical network, and an information indicating that the information data to be transmitted according to the header/channel information is data in an upper layer of an IP layer. The information data is then transmitted to the receiving node, where the information data contains the header/channel information and data of the upper layer without IP packet encapsulation. A network inter-connection node operates similarly.
摘要:
In a microprocessor (101) that internally has a microprocessor specific secret key, a key management unit (701) is provided to carry out a key registration for reading out from an external memory a distribution key that is obtained in advance by encrypting the instruction key by using a public key corresponding to the secret key, decrypting the distribution key by using the secret key to obtain the instruction key, and registering the instruction key in correspondence to a specific program identifier for identifying the program into a key table, and to notify a completion of the key registration to the processor core (201) asynchronously by interruption when the key registration is completed.
摘要:
The disclosed communication node has a function for recognizing one communication node on the first network as one of constituent elements in own communication node, and a function for disclosing an own configuration information regarding the constituent elements as recognized above, to another communication node on the second network. Also, the disclosed communication terminal has a function for disclosing functions in the own communication terminal as Sub Units in an AV/C (Audio/Visual Control) protocol executed on an IEEE 1394 bus, and a function for receiving at least a part of information regarding Sub Units existing in the communication node on the second network with which it is communicating. Together, these communication node and communication terminal make it possible to transmit various information transferred on the IEEE 1394 bus, to the radio node that is connected by the radio interface, and it becomes possible to execute the data communications as if the connection to the IEEE 1394 bus is made by the radio interface.