Abstract:
본 발명은 광도파로 및 양방향 광송수신 장치에 관한 것으로, 광도파로의 코어내에 양방향(Bi-direction) 신호를 분리하기 위한 파장 선택적 필터를 구비함으로써 광학계의 수동 정렬이 용이해 광송수신 성능이 우수하고, 소형화에도 유리하도록 한 것이다. 광도파로, 코어, 클래딩, 필터, 양방향 광송수신
Abstract:
PURPOSE: A network-adaptive variable stream layered method and apparatus for video streaming are provided to convert a frame of video data transmitted to a reception terminal having a reduced available bandwidth among reception terminals receiving video data in an IP-based wired/wireless network environment in order to provide a continuous streaming service. CONSTITUTION: A network-adaptive variable stream layered apparatus(400) comprises: a stream analysis unit(440) which outputs NAL information of a video stream by analyzing a video stream compressed H.264/AVC; a map table generation unit which arranges a frame included in the video stream based on the outputted NAL information; and a rate control unit(430) which selectively removes or selects the arranged frame in consideration of the NAL information and the packet loss rate of the available bandwidth of each reception terminal.
Abstract:
PURPOSE: A surface mounting type multi-wavelength filter module is provided to minimize the error by optical alignment and to secure reproducibility of a photo coupling efficiency. CONSTITUTION: An optical waveguide(11) converts optical path to one channel through an optical path transforming unit to the direction vertical to the progressive direction. Filter blocks(12a-12d) are mounted on the upper part of an optical waveguide. The light of specific wavelength is transmitted, the wavelength of the other wavelength band is reflected and reincident.
Abstract:
PURPOSE: A multi angel broadcasting service providing system is provided to supply a multi angel broadcasting service by minimizing the change of a receiver. CONSTITUTION: A receiving unit(310) receives an source image photographed form a plurality of times. A multi screen image generation unit(320) generates a multi screen image including the plurality of source image. A transmitting unit transmits the multi screen image to a receiving device(350). The multi screen image generation unit generates the multi screen image to enable the size of a specific source image among a plurality of source images to be bigger than the size of another source images.
Abstract:
PURPOSE: A participation broadcasting apparatus, a wired and wireless coupled server for supporting participation broadcasting, and a method for providing a service of participation broadcasting are provided to perform a smooth communication among a participation control server, a media mixer server, and a participant terminal joining a communication provider. CONSTITUTION: A wired and wireless coupled server(100) processes a control signal between a participation control server(120) and a participant terminal device(140). In addition, the wired and wireless coupled server processes participation data between a media mixer server(110) and the participant terminal device, and induces the user to participate into the broadcasting using the participant terminal device. The participant terminal device is one of a terrestrial broadcasting reception apparatus, a satellite broadcasting reception apparatus, a wireless broadcasting reception apparatus, and an IPTV reception apparatus. The participant terminal device 140 displays broadcasting data or mixed broadcasting data in which participation data is mixed, which are received from the media mixer server. The participant terminal device is a mobile terminal held by a user and be provided in various types of forms.
Abstract:
PURPOSE: An Optical communication module is provided to be applicable to high speed transmission by minimizing the optical or electric crosstalk. CONSTITUTION: A platform(120) forms a penetration hole which vertically penetrates the platform, and an optical reception unit(130) includes a light reception element and is mounted at the platform. An optical transmission unit(140) is mounted at the platform and includes a light emitting element. An optical filter unit(150) transmits the light outputted from the light emitting element to an optical path. In addition, the optical filter unit transmits the light inputted through the optical path to the light reception element.
Abstract:
펨토초 레이저를 사용하여 광섬유 특히 플라스틱 광섬유에 브래그 격자를 제작하는 브래그 격자 형성장치 및 방법이 개시된다. 광원부는 펨토초 레이저를 조사한다. 렌즈는 펨토초 레이저를 집광하여 초점을 형성한다. 구동 스테이지는 광섬유를 안착시키는 것으로 렌즈를 통과한 펨토초 레이저가 광섬유에 격자를 형성하도록 광섬유를 이동시킨다. 촬영부는 광섬유에 형성되는 격자 패턴을 모니터한다. 따라서, 플라스틱 광섬유에도 열 손상 없이 브래그 격자를 용이하게 제작할 수 있고, 위상마스크를 사용하지 않기 때문에 장치의 구성이 간단해지고, 격자의 가공품질이 매우 뛰어나다. 펨토초 레이저, 브래그 격자, 광섬유, 센서, 플라스틱 광섬유
Abstract:
PURPOSE: A digital television apparatus and an advertisement information analysis device for recognizing the reaction of a viewer are provided to accurately analyze the exposure degree of a viewer about first advertisement. CONSTITUTION: An exposure information analyzing unit(420) analyzes advertisement exposure information generated according to the exposure form of interactive advertisement through a digital television apparatus. A statistics information producing unit(430) produces statistical information by using the analyzed result. The interactive advertisement is a first advertisement offered to the digital television apparatus.
Abstract:
양방향으로 입사되는 광신호의 경로를 변환하는 광 도파로 장치에 관한 것으로, 코어; 및 상기 코어 둘레에 형성되는 클래딩부;를 포함하되, 일 단면이 입출력되는 광신호가 굴절되도록 경사지게 형성된 광 도파로 장치에 있어서, 상기 코어는 그 내부에 상기 클래딩부를 통해 입사되는 광신호가 상기 코어를 통해 직선으로 진행하도록 회절시키는 회절부를 포함하는 광 도파로 장치에 의해 양방향으로 광신호를 전송하는 기술을 구현함에 있어 광신호 결합률이 저하되는 것을 막을 수 있다. 광 경로 변환, 집속, 결합, 브라그, 회절