| Patent application number | Description | Published |
|---|
| 20090269066 | Single-Unit Integrated Transceiver Having Pump Source and Transceiver Module Using the Same - Provided are a sing-unit integrated transceiver having a pump source and a transceiver module using the transceiver. The single-unit integrated transceiver includes: an optical transmitter converting an input electric signal into a downstream optical signal; an optical receiver converting a received upstream optical signal into an electric signal; the pump source amplifying the downstream or upstream optical signal using a gain medium positioned in an optical transmission line to amplify an output optical signal; a convergence unit arranging or converging the downstream and upstream optical signals to/from the optical transmission line; and a multiplexing and/or a demultiplexing filter, the multiplexing filter positioned on an optical path between the optical transmitter/pump source and the convergence unit, and multiplexing the downstream optical signal and the amplified optical signal to pass to the convergence unit, the demultiplexing filter positioned on an optical path between the convergence unit and the optical receiver and demultiplexing the upstream optical signal to pass to the optical receiver. | 10-29-2009 |
| 20100010900 | SYSTEM AND METHOD OF INTERACTIVE AREA ADVERTISEMENT USING MULTICAST TRANSMITTING - An interactive advertisement system and a method thereof are provided. The interactive advertisement system includes an advertiser server, a local advertisement server, and a service receiver. The advertiser server requests registration of advertisement information by setting advertisement ID including target service areas and provides services in response to an order of available services corresponding to the advertisement information. The local advertisement server stores and registers the advertisement information including the advertisement ID corresponding to the registration request of the advertiser server, multicasts the registered advertisement information with the advertisement ID through an IP network, and transmits information related to a service request to the advertiser server. The service receiver extracts advertisement information providing a corresponding service from the received advertisement information, outputs the extracted information through a user interface, requesting the local advertisement server to order the input service, and receives the corresponding service from the advertiser server. | 01-14-2010 |
| 20100058411 | SYSTEM AND METHOD SUPPORTING DYNAMIC DELIVERY OF PROGRAM TIME TABLES AND BROADCAST PROGRAMS - A broadcast service provider must transmit broadcast programs by dynamically reflecting real-time reconfiguration of broadcast timetables and broadcast programs of a plurality of broadcast program providers and the broadcast service provider. | 03-04-2010 |
| 20100134592 | METHOD AND APPARATUS FOR TRANSCEIVING MULTI-VIEW VIDEO - A method and apparatus for transceiving a multi-view video to provide a two-dimensional (2D) video service as well as a three-dimensional (3D) video service or a multi-view 3D video service is provided. When a 2D video or a 3D stereo video or multi-view 3D video is transmitted in a 2D video synthesized by a video synthesizer, format supplementary information about the synthesized video is inserted to the PSI, PES or ES_Descriptor. The synthesized 2D video is decoded by a single video decoder and the decoded synthesized video is recovered to an original video by a video recovery unit with reference to the format supplementary information. | 06-03-2010 |
| 20100135325 | APPARATUS AND METHOD FOR INSERTING OR EXTRACTING NETWORK TIMESTAMP - Disclosed is a system of transporting multimedia based on network, and more particularly, to an apparatus for inserting, transporting and extracting a timestamp through a network protocol. A network timestamp is transported without changing a preset transport standard such as a UDP, an RTP and a MPEG-2 standard by adding a packet having a timestamp, which is used to compensate for network jitter and used for synchronization, to a packet stream transported through a UDP or an RTP. | 06-03-2010 |
| 20100135665 | BURST MODE OPTICAL REPEATER - A burst mode optical repeater is provided. The burst mode optical repeater receives optical signals, which are transmitted from a plurality of optical network units (ONUs) in a passive optical network (PON) to a central office using a time division multiplexing access (TDMA) method, and relays the received optical signals using an optical-electrical-optical (OEO) method. Since the burst mode optical repeater can be installed anywhere between an optical line terminal (OLT) and the ONUs, the number of subscribers and transmission range that can be supported by a corresponding network can be increased. | 06-03-2010 |
| 20110080425 | SYSTEM FOR PROVIDING MULTI-ANGLE BROADCASTING SERVICE - Provided is a system for providing a multi-angle broadcasting service. A transmission apparatus may transmit, to a reception apparatus, a plurality of source images photographed at a plurality of angles and a multi-screen image including the plurality of source images. The reception apparatus may receive the multi-screen image and decode a source image based on a user selection. | 04-07-2011 |
| 20110080908 | APPARATUS AND METHOD FOR CONTROLLING MULTICAST IN MULTI HOP NETWORKS - Disclosed is a multicast controlling apparatus and method in a multi hop network. The multicast controlling apparatus in the multi hop network includes a packet determining unit to receive a packet from a group management query device or a station, and to determine whether the received packet is a group management protocol packet, a packet type distinguishing unit to distinguish a type of the received packet when the received packet is determined as the group management protocol packet, and a packet transmitting unit to transmit the packet to a second port excluding a first port that receives the query message, when the received packet is determined as the query message. | 04-07-2011 |
| 20110090970 | TERMINAL AND RELAY NODE FOR VIDEO CONFERENCE SYSTEM - A terminal, a relay node, and a stream processing method for a video conference system may be provided. A transmitting terminal may receive media data, generate elementary streams from the media data, generate a transport stream by multiplexing the elementary streams, and transmit the transport stream to a relay node associated with a first receiving terminal among receiving terminals. | 04-21-2011 |
| 20110125917 | OVERLAY MULTICAST SYSTEM FOR GROUP MEDIA TRANSMISSION APPLICATION SERVICE COMPOSED OF MULTIPLE STREAM - Disclosed is an overlay multicast system for a group media transmission application service composed of a multiple stream, wherein, when an additional stream is newly transferred to a predetermined node in an overlay network, the overlay multicast system transmitting a plurality of streams in the overlay network generates a multiple stream by muxing a main stream inputted from a parent node and the additional stream based on stream correlation information in the predetermined node, and transmits the generated multiple stream to a child node. | 05-26-2011 |
