Abstract: The network system comprises an original device description indicating a control point so as to register an address used for MAC address authentication. The server side acquires information from the device(s) connected to the network, and only the device(s) having the above mentioned description are listed and displayed. By responding to the access from the non-registered device in a predetermined manner, the device is prompted to be registered.

Abstract: To combine thrifty power consumption with up-to-dateness of displayed information, an information processing apparatus (100) includes: a battery unit (114); a remaining amount determining unit (113) which determines a remaining battery amount; a display unit (111) having a memory characteristic; a power-off determining unit (116) which specifies an amount of power to be supplied from the battery unit to the information processing apparatus that is equal to or less than a predetermined amount; a timer unit (115) which controls a start of supplying power at a predetermined time; and a control unit (110) which (i) causes the timer unit to set the predetermined time, and causes the amount of the power to be equal to or less than the predetermined amount, and (ii) displays, on the display unit, information about the remaining battery amount when the timer unit starts the supply of the power to the information processing apparatus.

Abstract: There is provided an AV server capable of internally establishing a logical connection and appropriately managing connection with a plurality of client devices even when a physical connection is firstly requested from a client device. The AV server includes a communication unit which communicates with the client device via a communication channel; a protocol processing unit which performs processes including retrieval of a UPnP AV-compliant device and capability exchange based on the logical connection; a content data accumulation unit which accumulates content data such as a recorded TV program, moving image data and still image data therein; a content data distribution unit which distributes the content data accumulated in the content data accumulation unit; and a connection management unit which manages HTTP connection session information based on the physical connection for distributing the content data.

Abstract: An UI display apparatus capable of searching for and identifying a communication device connected to a network, in accordance with a user's preference. A television being the UI display apparatus includes a communication unit communicating with a DVD recorder, which is a communication device connected via the network, receiving data sent from the DVD recorder via the network, and sending the received data to the processing unit, and a processing unit instructing the display unit to perform UI rendering based on information stored in a recording unit, the recording unit storing the type name of a device the television wishes to display on the display unit among the devices on the network, the type name of a service provided by the device, a function name, etc. The television also includes a display unit displaying a UI such as an icon according to an instruction from the processing unit.

Abstract: The medium management device includes a communicating unit (11) that communicates with the client device (20); a content data accumulating unit (13) that accumulates content data transmitted to and received from the client device (20); a remaining capacity obtaining unit (15) that obtains remaining capacity indicating an amount of free space secured by the content data accumulating unit (13); and a protocol processing unit (12) that returns, to the client device (20), the remaining capacity that is secured by the file data accumulating unit (13) and obtained by the remaining capacity obtaining unit (15), when the server device receives a request for obtaining auxiliary information (browse request) from the client device (20), the request being related to the content and including a keyword made up of a specific character string.

Abstract: The network system comprises an original device description indicating a control point so as to register an address used for MAC address authentication. The server side acquires information from the device(s) connected to the network, and only the device(s) having the above mentioned description are listed and displayed. By responding to the access from the non-registered device in a predetermined manner, the device is prompted to be registered, said device corresponding with the device description, but not registered.

Abstract: In order to provide a file transfer system in which a transmitting device verifies a file transfer capability of a receiving device and which enables efficient file transfer in the case where the transmitting device autonomously transfers files to the receiving device via a network using an HTTP POST method, information (401 and 402) for inquiring about a sink device's capability of interruption/restart of file transfer is described in metadata 400 to be inputted at the time of sending a CDS:CreateObject action request defined in UPnP-AV standard, when a source device verifies on whether a sink device is capable of restart/interruption of file transfer.

Abstract: In order to provide an electronic device capable of obtaining data information list which the user wishes to acquire when performing a sort of the data list information, the device 11 includes: a communication unit 31 which sends and receives a UPnP A/V command to/from the device 10 via the communication path 2, a UPnP A/V command processing unit 401 for processing a UPnP A/V command compliant to the UPnP A/V standard, an extended command processing unit 411 for processing an extended UPnP A/V command, a content information management unit 70 for managing content data information stored in a content memory 71, and the content memory 71 for storing content data.

Abstract: A communication system including: a terminal (121); and a device (111), a device (112), and a device (113) existing within a LAN (110) connected to the terminal (121) through the Internet. The terminal (121) includes: a representative device preference storing unit (14) that stores information about processing performed by plural devices; a terminal control unit (15) that determines a representative device serving as a representative from among a plural devices based on information stored in the representative device preference storing unit (14); and a terminal side communication unit (10) that transmits a request for information about the devices within the LAN (110) to the representative device and receives a response to the request from the representative device.

Abstract: Provided is a UI display apparatus capable of easily searching for and identifying a communication device connected to a network, in accordance with a user's preference. A television 201 being the UI display apparatus includes: a communication unit 102 that communicates with a DVD recorder, which is a communication device connected via the network, receives data sent from the DVD recorder via the network, and sends the received to the processing unit 103; a processing unit 103 that instructs the display unit 105 to perform UI rendering based on information stored in a recording unit 104; the recording unit 104 storing the type name of a device the television 201 wishes to display on the display unit 105 among the devices on the network, the type name of a service provided by the device, a function name, and the like; and a display unit 105 that displays a UI such as an icon according to an instruction from the processing unit 103.

Abstract: For server apparatuses which accumulate content files and attached information about the contents, there has not been a means to distinguish items of the information which the server apparatuses permit editing of. Therefore, when a different terminal connected to the network is to modify the attached information about the contents, there has been a risk that the attached information about the contents are disorderly modified. Provided is a mechanism for having a means to clearly distinguish an item which is permitted for modification from an item which is not permitted for modification, and for clearly indicating the distinction to the different terminal through which a remote operation is performed.

Abstract: There is provided an AV server capable of internally establishing a logical connection and appropriately managing connection with a plurality of client devices even when a physical connection is firstly requested from a client device. The AV server (10) includes a communication unit (11) which communicates with the client device via a communication channel (3); a protocol processing unit (12) which performs processes including retrieval of a UPnP AV-compliant device and capability exchange based on the logical connection; a content data accumulation unit (13) which accumulates content data such as a recorded TV program, moving image data and still image data therein; a content data distribution unit (14) which distributes the content data accumulated in the content data accumulation unit (13); and a connection management unit (15) which manages HTTP connection session information based on the physical connection for distributing the content data.

Abstract: A server apparatus selects one of communication equipment that has a waiting and reception capability as a waiting and receiving side communication equipment based on waiting and reception capability information on the respective communication equipments, and selects another communication equipment as a connection side communication equipment. The waiting and receiving side communication equipment sets a router apparatus connected to the waiting and receiving side communication equipment so that the router apparatus receives a signal having a destination of waiting and receiving address information, and transfers the received signal to the waiting and receiving side communication equipment. The connection side communication equipment transmits a packet having the destination of the waiting and receiving address information to the waiting and receiving side communication equipment.

Abstract: Constant efforts have been made to reduce a size of electronic equipment incorporating a radio device. However, it has been impossible to simply and reliably establish a radio connection between pieces of electronic equipment. There are provided a radio system including a plurality of first radio devices that have statuses thereof changed at the time of receiving a predetermined signal, and a second radio device that has an input device 11 of sequentially transmitting a status change command as the predetermined command in order to establish a radio connection, the status change command causing all or some of the plurality of first radio devices to have statuses thereof changed. The status changes are externally output by the first radio devices receiving the status change command. A first radio device to act as a target of the radio connection is determined on the basis of information related to the externally output status changes.