Abstract: A laminated ceramic capacitor has a capacitor body of roughly a rectangular solid shape defined by the length, width, and height, as well as a concaved part formed at and along the edges of one side and the other side in the height direction. An external electrode has a base conductor layer whose height-direction wrap-around part is formed inside the concaved part, and a main conductor layer whose height-direction wrap-around part is formed continuously over the height-direction wrap-around part of the base conductor layer through the planar part, except for the concaved part, of one side and the other side of the component body in the height direction. The height-direction wrap-around part of the main conductor layer has a planar connecting area constituted by a surface area over the height-direction wrap-around part of the base conductor layer and a surface area over the planar part of the component body.

Abstract: A laminated ceramic capacitor has a capacitor body of roughly a rectangular solid shape defined by the length, width, and height, as well as a concaved part formed at and along the edges of one side and the other side in the height direction. An external electrode has a base conductor layer whose height-direction wrap-around part is formed inside the concaved part, and a main conductor layer whose height-direction wrap-around part is formed continuously over the height-direction wrap-around part of the base conductor layer through the planar part, except for the concaved part, of one side and the other side of the component body in the height direction. The height-direction wrap-around part of the main conductor layer has a planar connecting area constituted by a surface area over the height-direction wrap-around part of the base conductor layer and a surface area over the planar part of the component body.

Abstract: In a center-side terminal of an optical network, said center-side terminal connectable to a plurality of subscriber-side terminals via a passive optical splitter, a subscriber processing storing section is adapted to store a relationship between subscriber numbers regarding the subscriber-side terminals and processing contents allocated thereto, and a processing section is adapted to perform a processing upon a packet received from the subscriber-side terminals or to be transmitted thereto. The processing is determined in accordance with the relationship stored in the subscriber processing storing section using one of the subscriber numbers regarding the packet.

Abstract: In a subscriber line accommodation apparatus, subscriber line termination units individually terminate a plurality of subscriber lines. An address information acquisition unit successively acquires, as address information, a dynamic address dynamically assigned to each of the communication terminals connected to the subscriber lines terminated by the subscriber line termination unit. A packet information reading unit reads out, from a packet to be sent to one of the communication terminals, packet information containing a dynamic address indicating the destination of the packet. An address information coincidence presence/absence determination unit determines whether the readout dynamic address coincides with one of the pieces of address information acquired by the address information acquisition unit. A packet sending control unit permits sending of only a packet determined to be coincident. A packet filtering method is also disclosed.

Abstract: The present invention provides a moving picture distribution system, a subscriber line termination device, a moving picture distribution method, a moving picture distribution program, and a recording medium, that may sufficiently distribute moving picture data according to a link speed by an IP multicast manner. The moving picture distribution system includes a subscriber line termination device connected to a moving picture distribution network to perform a terminating process of a subscriber line; and an image reproduction device connected to the subscriber line termination device through a domestic termination device, wherein the subscriber line termination device selects a server according to a link speed with the domestic termination device and transmits moving picture data of a same content to the domestic termination device at the link speed by a multicast manner.

Abstract: The present invention is an IP multicast delivery apparatus for relaying the content, which is delivered from the multicast delivery server with the IP (Internet Protocol) multicast, to the premise apparatus, comprising: managing unit for managing a dependence relation of the content between the multicast groups; and controller for stopping/restarting of transfer of a multicast group based on the dependence relation that is managed by said managing unit.

Abstract: The object of the present invention is to provide an IP multicast service system which can design an independent multicast group system in each network on the center side and the subscriber-side. In an IP multicast service system according to the present invention including: a center-side network configured by a plurality of multicast servers; and a subscriber-side network configured by a plurality of IP-STBs (Internet Protocol-Set Top Boxes) for receiving a multicast packet transmitted from the multicast servers and reproducing the multicast packet as an image, a group design on the basis of an independent group address system on the center-side network and on the subscriber-side network can be made by converting a group address of the multicast packet transmitted and received between the center-side network and the subscriber-side network.

Abstract: A subscriber loop remote control apparatus that allows communication terminals to transmit VLAN packets without imposing a load on a router. A subscriber loop remote control apparatus is provided with a virtual interface table for associating a subscriber premises terminal identifier individually assigned to a subscriber premises terminal connected through a communication cable to a port assigned to every packet of each group which constitutes a VLAN with the port number of the port to store and manage them. When receiving a packet, the subscriber loop remote control apparatus determines whether or not a subscriber premises terminal identifier contained in the packet matches any of those in the virtual interface table. When the subscriber premises terminal identifier matches one of those in the virtual interface table, the subscriber loop remote control apparatus returns and transmits the packet to the destination before the router side.

Abstract: In a subscriber line accommodation apparatus, subscriber line termination units individually terminate a plurality of subscriber lines. An address information acquisition unit acquires address information of each communication terminal connected to the subscriber line terminated by the subscriber line termination unit. When the IP address of a communication terminal is designated, and one of an ARP request to acquire a MAC address corresponding to the IP address and an ARP response is done, an address information coincidence determination unit determines whether an address indicating the transmission source of an ARP packet used for the ARP request and the ARP response coincides with one of pieces of address information acquired by the address information acquisition unit. A packet sending control unit permits sending of the ARP packet when it is determined that the addresses coincide. A packet filtering method is also disclosed.

Abstract: In a center-side terminal of an optical network, said center-side terminal connectable to a plurality of subscriber-side terminals via a passive optical splitter, a subscriber processing storing section is adapted to store a relationship between subscriber numbers regarding the subscriber-side terminals and processing contents allocated thereto, and a processing section is adapted to perform a processing upon a packet received from the subscriber-side terminals or to be transmitted thereto. The processing is determined in accordance with the relationship stored in the subscriber processing storing section using one of the subscriber numbers regarding the packet.

Abstract: In a subscriber line accommodation apparatus, subscriber line termination units individually terminate a plurality of subscriber lines. An address information acquisition unit successively acquires, as address information, a dynamic address dynamically assigned to each of the communication terminals connected to the subscriber lines terminated by the subscriber line termination unit. A packet information reading unit reads out, from a packet to be sent to one of the communication terminals, packet information containing a dynamic address indicating the destination of the packet. An address information coincidence presence/absence determination unit determines whether the readout dynamic address coincides with one of the pieces of address information acquired by the address information acquisition unit. A packet sending control unit permits sending of only a packet determined to be coincident. A packet filtering method is also disclosed.