Abstract:
PURPOSE: A transcoding device is provided to convert a digital bit stream having a quantizer without a dead zone into a digital bit stream having a quantizer having a dead zone, thereby easily converting bit streams having the same or different compression methods. CONSTITUTION: A VLD(Variable Length Decoding) block(1302) restores syntax elements and video elements from the first bit stream in accordance with the first compression method. An MPEG-4 dequantization block(1304) dequantizes the video elements with the first compression method, and restores video data. An MPEG-4 quantization block(1306) re-quantizes the video data according to the second compression method. A syntax generator(1310) maps the syntax elements to syntax elements in accordance with the second compression method. A VLC(Variable Length Coding) block(1308) outputs a coded second bit stream according to the second compression method for the quantized video data and the syntax elements.
Abstract:
웨이퍼의 보우를 줄여서 웨이퍼의 파손 및 변형을 감소시킴과 동시에 발광 파장의 균일도를 향상시킨 질화갈륨계 반도체 소자 및 그 제조방법이 개시된다. 본 발명의 일 유형에 따른 반도체 소자는, 보론(B)과 게르마늄(Ge)이 동시에 도핑된 실리콘계 기판; 상기 실리콘계 기판 위에 배치된 버퍼층; 및 상기 버퍼층 위에 배치된 질화물 적층체;를 포함할 수 있다. 여기서 상기 보론(B)의 도핑 농도는 10 19 /cm 3 보다 높으며, 상기 게르마늄(Ge)의 도핑 농도는 10 19 /cm 3 보다 높을 수 있다.
Abstract:
정공주입층을 이용하여 활성층으로의 정공 주입을 증가시켜 발광 효율을 향상시킨 반도체 발광 소자 및 그 제조 방법이 개시된다. 개시된 반도체 발광 소자는, 제 1 도전형으로 도핑된 제 1 반도체층, 상기 제 1 반도체층 위에 배치되며 경사진 사면을 갖는 다수의 피트가 표면에 형성된 활성층, 상기 활성층의 표면 위에 배치되며 상기 다수의 피트의 경사진 사면을 따라 일정한 두께로 형성된 정공주입층, 및 상기 정공주입층 위에 배치되며 제 2 도전형으로 도핑된 제 2 반도체층을 포함할 수 있다.
Abstract:
Disclosed are a light emitting diode package and a method for manufacturing the same. The disclosed light emitting diode package comprises at least one light emitting structure, wherein the light emitting structure includes a first compound semiconductor layer; an active layer; a second compound semiconductor layer; at least one first metal layer which is arranged to be connected to the first compound semiconductor layer; a second metal layer which is arranged to be connected to the second compound semiconductor layer; a substrate having a conductive adhesion layer formed on a first surface thereof; and a bonding metal layer for eutectic bonding, which is arranged between the first metal layer and the conductive adhesion layer.
Abstract:
PURPOSE: A silicon substrate, an epitaxial structure having the same, and a method of manufacturing a silicon substrate are provided to reduce the generation of cracks by using a crack prevention part formed in a silicon edge part. CONSTITUTION: A silicon edge part(11) is formed around a silicon main part(12). A crack prevention part(15) is formed on a silicon edge part. The crack prevention part includes a dielectric layer. The dielectric layer is formed in the upper part of the silicon edge part. The dielectric layer includes a nitride layer or an oxide layer.
Abstract:
A cell reselection device of a portable terminal and a method are provided to enable the terminal receiving a broadcasting message to read the broadcasting message to conduct cell reselection which supports an HSDPA(High Speed Downlink Packet Access) service, thus it is unnecessary to perform cell reselection to a cell which does not support the service. A communication unit(210) receives a broadcasting message. A broadcasting message reader(202) reads the received broadcasting message by receiving instructions of a controller(200), confirms whether a cell which supports an HSDPA service exists, and provides the confirmed results to the controller. The controller controls the communication unit and the broadcasting message reader. The controller enables cell reselection to be conducted to a cell having the best cell reselection condition among cells which support the HSDPA service confirmed by the reader.