Abstract:
PURPOSE: A satellite ATM(Asynchronous Transfer Mode) interface device for transmitting Internet and video data to a satellite network and a method therefor are provided to multiplex ATM data, the Internet data, and the video data of a terrestrial network, which have inter-different traffic characteristics, and transmit the multiplexed data to a satellite. CONSTITUTION: A line interface unit(100) synchronizes a received frame or packet, and transmits a generated corresponding frame or packet to an ATM network, an Internet network, and a transmission network. A cell/frame processing unit(200) receives the frame or packet transmitted from the line interface unit(100), and generates an ATM cell or processes a valid cell and generates a new frame. A FIFO processing unit(300) receives and stores the ATM cell generated from the cell/frame processing unit(200), and grasps states of one or more FIFOs. A multiplexing/demultiplexing process unit(400) receives state grasp result values of the FIFOs from the FIFO processing unit(300), multiplexes the ATM cells according to the characteristic of a traffic, and transmits the multiplexed ATM cell. The multiplexing/demultiplexing process unit(400) demultiplexes a cell received from the outside, and transmits the demultiplexed cells to the FIFO processing unit(300).
Abstract:
A structure and a method for depuncturing an input bit stream being input to a Viterbi decoder when the Viterbi decoder is designed by using a Radix-4 branch metric calculator in a method for designing the Viterbi decoder that decodes a punctured code at a high-speed, are disclosed. A depuncture structure for Radix-4 branch metric calculation in a high-speed Viterbi decoder includes four FIFOs, four multiplexers, and one Radix-4 branch metric calculator. Two input bit streams of I and Q are connected to two upper FIFOs and two lower FIFOs. An output terminal of FIFO is connected to upper and lower multiplexers of the next stage. One output terminal of each multiplexer is connected to Radix-4 branch metric calculator. As a result, Radix-4 branch metric calculation can be achieved by using the same clock as a clock speed of the input I and Q bit streams. This structure and this method can be applied to a depuncturing process for Radix-4 branch metric calculation of all punctured codes derived from ½code.
Abstract:
본발명의일 실시예에따른전방향성안테나는기판, 상기기판위에형성되어있는적어도하나이상의상부안테나패턴, 상기기판아래에형성되어있으며상기상부안테나패턴과연결되어있는적어도하나이상의하부안테나패턴을포함하는나선형안테나, 상기나선형안테나를지지하며상기나선형안테나와연결되어있는모노폴안테나를포함할수 있다. 따라서, 본발명의일 실시예에따른전방향성안테나는기판의상부표면과하부표면에각각상부안테나패턴및 하부안테나패턴을가지는나선형안테나로형성함으로써, 입체적인전류흐름이가능하게하여전방향성의방사특성을나타낼수 있다.
Abstract:
무선 센서 액추에이터 네트워크 시스템의 액추에이터는 복수의 센서의 센싱 데이터를 토대로 하는 복수의 액추에이터와 상기 복수의 센서간 관계 강도를 나타내는 AS 메트릭스를 이용하여 각 센서에 대응하여 동작할 액추에이터를 선정하고, 선정된 액추에이터만이 AS 메트릭스의 값을 토대로 동작을 결정한다.
Abstract:
The present invention relates to a CCTV camera interlocked automatic parking control method which controls auto parking to be conducted in real time by using images from a CCTV camera installed in a public parking lot. The method includes the steps of receiving an auto parking mode set signal from a vehicle, adjusting the direction of a camera in the public parking lot, and generating a bird′s eye view image; determining an auto parking path and vehicle control information for the vehicle on the basis of the generated bird′s eye view image; transmitting the determined auto parking path and vehicle control information to the vehicle; receiving information from the auxiliary sensor attached to the vehicle and image information from the camera in the public parking lot while the vehicle conducts auto parking on the basis of the auto parking path and vehicle control information; and feeding back detailed vehicle control information to the vehicle on the basis of the information from the auxiliary sensor attached to the vehicle and image information from the camera in the public parking lot.
Abstract:
The present invention provides a device and a method for processing a passage management packet. The device for processing a passage management packet determines whether a router processing a received passage management packet is a storage node. If the router is the storage node, the present invention controls the passage management packet to be stored in a routing table. If the router is a non-storage node, the present invention controls the passage management packet to be transmitted to a next node without storing the passage management packet in the routing table. [Reference numerals] (110) Reception unit; (120) Determination unit; (130) Control unit; (140) Routing table; (150) Transmission unit
Abstract:
실시간으로 측정되는 수질 다항목을 사용하여 총 질소를 예측하는 장치 및 방법이 개시된다. 총 질소 예측 장치는 적어도 하나의 수질 다항목의 상관 계수에 기초하여 상기 수질 다항목으로 구성된 회귀 모델을 선택하는 회귀 모델 선택부; 상기 선택된 회귀 모델의 적합도를 평가하는 적합도 평가부; 상기 적합도에 기초하여 상기 회귀 모델의 변경 여부를 판단하고, 변경이 필요한 경우, 상기 회귀 모델을 변경하는 회귀 모델 변경부; 및 상기 회귀 모델을 기초로 수역의 총 질소 량을 예측하는 총 질소 예측부를 포함할 수 있다.