摘要:
Provided is a content management device, which is connected with a plurality of terminal devices for performing a content moving operation while considering the conveniences of the users of the individual terminal devices. The content management device comprises a content storage unit stored with one or more contents, a move information management unit stored with first range information indicating the partial or entire range of the content to be moved, a range information receiving unit for accepting second range information indicating the range requiring the move, from one terminal device, a judgement unit for deciding whether or not the range indicated by the first range information and the range indicated by the second range information overlap at least partially, and a control unit for permitting the required range to be moved to the terminal device, in case the decision by the judgement unit is NO.
摘要:
Provided is a content management device, which is connected with a plurality of terminal devices for performing a content moving operation while considering the conveniences of the users of the individual terminal devices. The content management device comprises a content storage unit stored with one or more contents, a move information management unit stored with first range information indicating the partial or entire range of the content to be moved, a range information receiving unit for accepting second range information indicating the range requiring the move, from one terminal device, a judgement unit for deciding whether or not the range indicated by the first range information and the range indicated by the second range information overlap at least partially, and a control unit for permitting the required range to be moved to the terminal device, in case the decision by the judgement unit is NO.
摘要:
The AV data transmitting apparatus according to the present invention is an AV data transmitting apparatus which transmits AV data to an other apparatus, and includes: a recording unit that records AV data; an AV data transmitting unit which transmits, to the other apparatus, the AV data recorded by the recording unit; a notification receiving unit that receives, from the other apparatus, a success notification indicating that the recording of the AD data has succeeded; a control unit that performs processing to delete or invalidate the AV data recorded by the recording unit in the case where the success notification is received by the notification receiving unit; and a response transmitting unit that transmits, to the other apparatus, a notification response indicating a result of the processing performed by the control unit.
摘要:
In a network system for transmitting and receiving contents with one or more pieces of additional information corresponding to an internal attribute of the contents, a contents server can decide the data to be transmitted without regard to a division transfer method supposed for a contents receiving apparatus. The contents server includes storage unit holding one or more contents, contents data acquisition unit receiving a data request including request range information of the contents out of consideration for the additional information and extracting the data of the contents in a requested range out of the storage unit, and transmitting unit transmitting the extracted data of the contents with the additional information. The contents receiving apparatus includes receiving unit receiving the data of the contents with the additional information that are transmitted from the transmitting unit, received data decision unit deciding a receiving request range of the contents out of consideration for the additional information, and data request transmitting unit transmitting the data request including request range information.
摘要:
A conventional recording and reproducing apparatus cannot move second copyright-protected AV data while moving a first copyright-protected AV content when moving such AV data via a network because the recording and reproducing apparatus issues an exchange key to be used for decrypting the AV data to a single receiving-side recording and reproducing apparatus only.The recording and reproducing apparatus of the present invention generates a new exchange key as a random number and transmits the new exchange key each time an exchange key for use in a move mode is requested; while it always transmits an identical exchange key when a normal exchange key is requested. The recording and reproducing apparatus selects an exchange key to be used according to the address of a recording and reproducing apparatus which is the transmission destination when encrypting an AV content to be transmitted.
摘要:
In a network system for transmitting and receiving contents with one or more pieces of additional information corresponding to an internal attribute of the contents, a contents server can decide the data to be transmitted without regard to a division transfer method supposed for a contents receiving apparatus. The contents server includes storage unit holding one or more contents, contents data acquisition unit receiving a data request including request range information of the contents out of consideration for the additional information and extracting the data of the contents in a requested range out of the storage unit, and transmitting unit transmitting the extracted data of the contents with the additional information. The contents receiving apparatus includes receiving unit receiving the data of the contents with the additional information that are transmitted from the transmitting unit, received data decision unit deciding a receiving request range of the contents out of consideration for the additional information, and data request transmitting unit transmitting the data request including request range information.
摘要:
A radio communication method for transmitting and receiving data between a first terminal and a second terminal comprises the following two steps. A step of establishing a connection between the first terminal and the second terminal when the first terminal and the second terminal have detected that a signal has not been transmitted on a predetermined channel, and the other step of starting data communications between the first terminal and the second terminal which have established the connection, and transmitting the predetermined signal on the predetermined channel from both the first terminal and the second terminal throughout the data communications.
摘要:
A data transmission apparatus, a data reception apparatus, and a data transfer system prevent a case where same usable data is present in plural apparatuses at the same time and can certainly move data, in MOVE processing of the data between the data transmission apparatus and the data reception apparatus. The data transmission apparatus includes a synchronous control unit synchronizing a timing of (i) deleting or invalidating, in the data transmission apparatus, move-target data and (ii) decrypting, in the data reception apparatus, the move-target data that has been encrypted. With this, it becomes possible to prevent a case where the same usable data is present in plural apparatuses at the same time.
摘要:
In reproducing the AV contents, the information concerning the configuration of reproduction block (e.g., GOP) composing the AV contents is needed. In the case of network reproduction, it was requisite that an AV contents reproducing apparatus acquired this information from an AV server. The present invention provides an AV contents reproducing method, an AV server and an AV contents reproducing apparatus in which this information is unnecessary to transmit or receive. The AV contents reproducing apparatus transmits a reproduction start request by specifying the start request position, and the AV server starts to transmit the AV contents from the top position of reproduction block (e.g., GOP) near the start request position.
摘要:
The invention provides a communication network system which permits parallel access of a plurality of nodes to a transmission line and which has a high throughput and low delay, with fairness among the nodes maintained. In the communication network system, a plurality of tokens correspondingly associated with the nodes, respectively, are allowed to circulate on the transmission line. Each node is allowed to transmit data only when the frame insertion buffer is empty. The node, when having data to be transmitted, awaits the arrival of a token. If a token that has arrived corresponds to the self node, or if a node corresponding to the arrived token is downstream of the destination node as viewed from the own self node, the node forms a packet from its holding data and transmits it onto the transmission line.