Abstract:
A method for servicing a 2 dimension image and a 2 dimension-3 dimension mixed image by inserting a 3 dimension image into a specific field of the 2 dimension image is provided to reproduce a 3 dimension image in only some scenes of a specific event in a 2 dimension moving picture of a digital broadcast, thereby reducing fatigues of eyes. A 2 dimension image is converted to a 3 dimension image on a specific field. Information about a position and size of the specific field is stored. A mask is applied to a left image of the 3 dimension image to be displayed on the specific field of the 2 dimension image. The left image is attached to a reference point position of the specific field. The 2 dimension attached to the 3 dimension image is transmitted or stored through a multiplexing method. The transmitted or stored 2 dimension image is copied and expanded by two times in a cross direction.
Abstract:
An inter-view frame reference method in multi-view moving picture coding and an apparatus therefor are provided to reduce a residual signal and enhance a compression rate by referring to a frame of a different viewpoint of the same time or a frame of a different viewpoint of a different time when multi-view moving picture data are encoded. A multi-view GOP(Group Of Picture) arranging unit(110) includes GOPs corresponding to at least one or more viewpoints, and arranges the respective view points between the respective GOPs to have the same coding structure. A mutual viewpoint reference unit(120) refers in the picture order within a spatially close viewpoint among pictures of different viewpoints previously encoded in the respective GOPs.
Abstract:
PURPOSE: A multi-view image content generating method and an apparatus thereof are provided to generate an image file of predetermined format and to insert the other images by using a chunk area. CONSTITUTION: A multi-view image contents generating unit generates an image file of a predetermined file format based on a selected image(S1). The device generates the chunk data based on remaining images(S2). The device inserts the generated chunk data into a chunk area of the generated PNG format file(S4). The device stores the multi-view image content in a storing unit(S5).
Abstract:
PURPOSE: A device and a method for operating a cable modem termination system(CMTS) in a cable network communication system are provided to implement a cutting operation with respect to a corresponding service defined in one CMTS if an error is generated in the core of the CMTS. CONSTITUTION: A contents server system(101) provides an electronic program guide and video on demand service contents. A DOCSIS timing interface service(103) secures the same period of times for the time synchronization of CMTS cores(104 to 107) and the time synchronization of the CMTS cores and edge-quadrature amplitude modulation(EQAM). An operating system support server operates and manages networks. The EQAM modulates media access controlling data into QAM.
Abstract:
PURPOSE: A data receiving apparatus of a communication system and a method thereof are provided to accurately detect a data packet by using preamble and to accurately perform automatic gain control by using the strength of a receiving signal corresponding to the detected data packet. CONSTITUTION: A detecting unit(330) calculates a power value of a data packet by using preamble of a data packet within a receiving signal. The detecting unit detects the data packet through the calculated power value. A controlling unit(360) calculates a gain compensating value of the detected data packet. The controlling unit performs AGC(Auto Gain Control) of the detected data packet. A compensating unit(310) compensates a DC offset of the receiving signal.
Abstract:
PURPOSE: An adaptive three-dimensional subtitle generator for three-dimensional images is provided to relief the fatigue generated from washing a movie formed with the three-dimensional images. CONSTITUTION: An adaptive three-dimensional subtitle generator for three-dimensional images comprises the following: a variation information extraction unit(220) dividing the total image sequence into segments, and extracting variation information from the segments; a location information providing unit(210) providing location information for the three-dimensional subtitle inside each segment; and a three-dimensional subtitle generating unit(230) adaptively determining the depth of the three-dimensional subtitle based on the variation information.
Abstract:
PURPOSE: A digital video transmitting/receiving apparatus, a method thereof, and a digital video transmitting/receiving system are provided to reduce load of network by transmitting sub-sampling of digital video data. CONSTITUTION: A down-sampling rate determining unit(12) determines down-sampling rate corresponding to bandwidth of a transmitting network based on obtained information. A video down-sampling unit(13) down-samples a digital video of high resolution according to the down-sampling rate. A video encoding unit(14) encodes the down-sampled digital video. A video multiplexing and transmitting unit(15) multiplexes the encoded digital video. The video multiplexing and transmitting unit transmits the multiplexed digital video to a video receiving unit through transmission network.
Abstract:
PURPOSE: An electronic program guide information supplying method and an apparatus thereof are provided to supply broadcasting channel and program information based on EPG. CONSTITUTION: Broadcasting channel and program information is received from a digital cable broadcasting headend through a first communication network(S1). A first EPG(Electronic Program Guide) to be used in a main terminal is generated(S2). A broadcasting channel and a program are detected for supporting a multi room service. A second EPG is generated in a sub terminal(S3).
Abstract:
본 발명은, DMB 전송신호 품질 측정 장치 및 그 방법과, 그를 이용한 DMB 방송 수신 시스템에 관한 것으로서, 방송망을 통하여 수신된 DMB 전송신호로부터 에러 보정 전에 직교변조 신호(예를 들면, I/Q 신호)를 생성하여 신호 품질을 측정함으로써, 신호 품질의 정확성을 높이고자 한다. 이를 위하여, 본 발명은, DMB 전송신호 품질 측정 장치에 있어서, DMB 전송신호를 수신하여 디지털 IF(Intermediate Frequency) 신호로 변환하기 위한 수신 처리 수단; 상기 디지털 IF 신호를 복조하여 직교변조 신호를 생성하기 위한 복조 수단; 및 상기 직교변조 신호를 이용하여 신호품질 측정값을 구하기 위한 신호품질 측정 수단을 포함한다. DMB, 지상파 DMB, RF 신호 분석, 직교변조 신호, I/Q 신호, 신호품질 측정
Abstract:
PURPOSE: A downstream transmission apparatus and a method thereof are provided to compensate distortion of a channel on a cable network having channel information. CONSTITUTION: A UL(UpLink) demodulating unit(240) receives a DL channel state of a DL channel from a subscriber device. A DL modulating unit(220) generates a DL stream. A channel processing unit(250) generates a channel value for the DL channel based on the DL channel state. A channel compensating unit(230) compensates the UL channel by the compensated channel value.