Abstract:
PURPOSE: A pump light source controller of an optical fiber amplifier and a hybrid type optical fiber amplifier using the same are provided to gain a sufficient operation band width about an input power change while maintaining a constant optical amplification feature with respect to a change of an input signal light intensity. CONSTITUTION: A pump power control loop(210) controls a pump power of a Raman amplification module for a lossless division compensation. A tap coupler(211) divides a part of an input signal. An optical detector(212) measures a signal divided by the tap coupler(211). An amplifier(213) amplifies a signal detected by the optical detector(212). An A/D converter(214) converts an analog signal amplified by the amplifier(213) into a digital signal. A processor(215) controls the digital signal from the A/D converter(214). A D/A converter(216) converts the digital signal controlled by the processor(215) into an analog signal. An adder(217) adds the analog signal from the D/A converter(216) to an off-set voltage.
Abstract translation:目的:提供一种光纤放大器的泵浦光源控制器和使用该光纤放大器的混合型光纤放大器,以获得关于输入功率变化的足够的工作带宽,同时保持相对于 输入信号光强度。 构成:泵功率控制回路(210)控制拉曼放大模块的泵浦功率进行无损分配补偿。 抽头耦合器(211)分割输入信号的一部分。 光检测器(212)测量由分接耦合器(211)分频的信号。 放大器(213)放大由光检测器(212)检测的信号。 A / D转换器(214)将由放大器(213)放大的模拟信号转换为数字信号。 处理器(215)控制来自A / D转换器(214)的数字信号。 D / A转换器(216)将由处理器(215)控制的数字信号转换为模拟信号。 加法器(217)将来自D / A转换器(216)的模拟信号与偏置电压相加。
Abstract:
1. 청구범위에 기재된 발명이 속하는 기술분야 본 발명은 광게이트를 이용한 광 공간분할 스위칭 장치에 관한 것임. 2. 발명이 해결하고자하는 기술적 요지 본 발명은 임의의 입력포트를 통해 입력된 광신호들을 내부에서 충돌없이 원하는 출력포트로 스위칭함에 있어, 입력 광신호가 원하지 않는 출력포트로는 거의 전달되지 않도록 광신호의 전달을 이중으로 차단하고 입력 광신호가 원하는 출력포트로만 전달되도록 함으로써, 광신호의 누화성분의 수를 현저하게 감소시킬 수 있는 광게이트를 이용한 광 공간분할 스위칭 장치를 제공하고자 함. 3. 발명의 해결 방법의 요지 본 발명은 임의의 입력포트들을 통해 입력된 광신호를 내부에서 충돌없이 원하는 출력포트로 내보내는 광 공간분할 스위칭 장치에 있어서, 상기 입력포트를 통해 입력된 광신호들을 분배하기 위한 제1 분배수단; 상기 제1 분배수단에 의해 분배된 광신호들을 선택된 출력포트로 보내기 위해 선택 출력하는 제1 스위칭수단; 상기 제1 스위칭수단에 의해 선택된 광신호들을 분배하기 위한 제2 분배수단; 상기 제2 분배수단에 의해 분배된 광신호들을 상기 선택된 출력포트로 보내기 위해 선택 출력하는 제2 스위칭수단; 상기 제2 스위칭수단에 의해 선택된 광신호들을 결합하여 해당 출력포트로 보내기 위한 결합수단; 및 출력 광신호의 손실을 보상하기 위하여, 상기 결합수단으로부터 전달된 광신호를 증폭시켜 상기 해당 출력포트로 전달하는 증폭수단을 포함함. 4. 발명의 중요한 용도 본 발명은 광신호를 교차접속하여 원하는 방향으로 스위칭하는데 이용됨.
Abstract:
PURPOSE: A bidirectional with two stages-optical amplifier is provided to share the second stage optical amplifying device of with two stages-optical amplifier structure upon bidirectional transmission to make the bidirectional amplification possible by using one amplifying device. CONSTITUTION: The high output amplifying part receives input signal light and pump light simultaneously and makes the amplifying device which generates the amplification within an erbium-doped fiber with two stages to increase output strength. The gain flattening device flattens the gain characteristic for each wavelength using the gain flattening filter between two-stages. The bidirectional amplifying device shares the later part amplifying device at the two-stages amplifying devices for bi-direction each other to make the bidirectional amplification possible using one amplifying device.
Abstract:
1. 청구범위에 기재된 발명이 속하는 기술분야 본 발명은 광교차 접속기의 광매트릭스 스위치에 관한 것임. 2. 발명이 해결하고자하는 기술적 과제 본 발명은 광교차 접속기의 공간 스위칭 기능부의 삽입손실을 균일하게하여 출력 광신호의 신호 대 잡음비를 개선하며, 출력측에 광신호를 결합하는 기능부 대신에 광신호를 스위칭하는 기능부를 사용하여 출력 광신호의 삽입 손실 및 누화량을 줄일 수 있는 광교차 접속기의 광 스위칭 장치를 제공하는데 그 목적이 있다. 3. 발명의 해결 방법의 요지 본 발명은 외부로부터 전달된 다수의 입력 광신호를 공간 스위칭하여 전달하는 스위칭 수단; 및 상기 스위칭 수단으로부터 전달된 광신호들을 결합하거나 그 중에서 하나의 광신호를 선택하여 외부로 출력하는 선택수단을 포함한다. 4. 발명의 중요한 용도 본 발명은 공간 스위치 기능부의 삽입 손실이 규일한 광교차 접속기의 스위치 매트릭스로 이용됨.
Abstract:
PURPOSE: A control system for securing safety of infants in a vehicle is provided to protect an infant with an airbag and prevent accidents due to an airbag by adjusting or operating an airbag in consideration of infant during accidents. CONSTITUTION: A control system for securing safety of infants comprises a sensor(100), a monitoring part(200), and a controller(300). The sensor senses passenger information. The passenger information includes the withdrawn length of the safety belt. The monitoring part determines whether a passenger is an infant or not and decides the wearing state of the safety belt and the location of the infant. The monitoring part creates information about boarding state according to the decision result. The controller receives the boarding condition information and controls the peripheral components of the vehicles.
Abstract:
PURPOSE: A hardware-in-the-loop simulation system is provided to effectively maintain, repair, and manage ECUs(Electronic Control Units) by efficiently enabling the performance test and feedback of test result of electronic devices. CONSTITUTION: A hardware-in-the-loop simulation system comprises multiple hardware modules(10,20,30,40,50,60) and a plurality of ECUs(110,120,130,140,150,160). Multiple hardware modules are installed inside the vehicle. The multiple ECUs control the multiple hardware modules. All ECUs are loaded to one hardware module among multiple hardware modules.
Abstract:
An RF(Radio Frequency) transceiver for eliminating crosstalk of transceiving switching in a UWB(Ultra Wide Band) system is provided to isolate a signal so that the signal is not outputted from a transmitter when the transceiver operates in a reception mode, thereby eliminating crosstalk of a transmission signal applied to a receiver. A control signal generator is connected between a transmitter and a switch(130), and generates a transceiving switching control signal for isolating a transmission signal outputted from the transmitter when switching a receiving signal to a receiver. A transceiving controller(140) has a crosstalk elimination switch which isolates the transmission signal according to the transceiving switching control signal.
Abstract:
An apparatus for controlling the operation of an automatic gain controller in an UWB(Ultra Wide Band) receiving apparatus and a method therefor are provided to generate an AGC operation control signal by referring to the link quality estimate of an UWB transmission channel without operating the automatic gain controller in each frame transmission to control the operation of the automatic gain controller, thereby reducing power consumption. An apparatus for controlling the operation of an automatic gain controller(330) comprises a link quality estimate generator(310) and an AGC(Automatic Gain Control) operation control signal generator(320). The link quality estimate generator calculates a link quality estimate(311) for transmitted signals. The AGC operation control signal generator determines whether the link quality estimate corresponds to any one of at least two groups(321~323) and outputs an AGC operation control signal(324~326) corresponding to the determined group. The link quality estimate is divided into at least two groups in a link quality measurement section.
Abstract:
Provided are a multi-protocol signal processing apparatus for a next-generation Synchronous Digital Hierarchy (NG-SDH) transponder, and a method thereof. The multi-protocol signal processing apparatus for an NG-SDH transponder, which includes: a sub-signal processing unit for classifying and processing multi-protocol sub-signals based on kinds; an interfacing unit for making interface between the sub-signal processing unit and an optical signal generating unit the same for the multi-protocol sub-signals to use the multi-protocol sub-signals in Synchronous Digital Hierarchy (SDH) flexibly with no regard to the kinds of the multi-protocol sub-signals; and the optical signal generating unit for generating SDH optical signals by aggregating the multi-protocol sub-signals having a predetermined capacity which are transmitted through the interfacing unit into SDH signals, performing framing, and performing optical/electrical (O/E) conversion on the SDH signals in an optical module.