Abstract:
PURPOSE: A time deterministic real-time scheduling method based on open systems and their interfaces for the electronics in motor vehicles(OSEK) is provided to adequately satisfy OSEK standards and to improve the performance of scheduling. CONSTITUTION: A plurality of preparation queues is prepared. A plurality of tasks by priority is defined by the preparation queues. A group indicator is defined in order to display the existence of the tasks. The position of a task loaded at the preparation queues is indicated. The position of a task with the highest priority is detected from the preparation queues. The task is executed.
Abstract:
PURPOSE: A modulation device, modulation method, demodulation device, and demodulation method are provided to eliminate a phase difference between symbols during a signal modulation process, thereby realizing high power efficiency. CONSTITUTION: A modulation symbol generating unit comprises a symbol mapper(111), multipliers(112~115), a delay device(116), and an adder(117). The symbol mapper maps bit information to be transmitted to generate a baseband symbol. The multipliers multiply a baseband symbol with a cosine function or a sine function to output a result value to the adder. An in-phase signal and an orthogonal phase signal outputted from the multipliers include a voiced signal section and a non-voiced signal section.
Abstract:
PURPOSE: A power reducing method and system thereof in a human body are provided to reduce a power in a human in and out communication. CONSTITUTION: A management device(200) suits synchronization by transmitting a beacon signal to a plurality of sensors per constant period. A sensor device(100) includes a sensor which received a first beacon signal. The sensor device determines an operation state of the sensor based on the grasped time.
Abstract:
신호 수신 시스템은 복수 개의 수신기를 통해 송신기가 송신한 신호로부터 복수 개의 수신기에 각각 대응하는 복수 개의 수신 신호를 수신하고, 복수 개의 수신 신호를 바탕으로 복수 개의 수신기를 분류하여 복수 개의 수신 그룹을 생성하며, 복수 개의 수신 신호를 바탕으로 복수 개의 수신 그룹에 각각 대응하는 복수 개의 다이버시티 합성 신호를 생성한다. 이후 복수 개의 다이버시티 합성 신호 중 수신 전력이 가장 큰 다이버시티 합성 신호를 선택한다. 이를 통해 무선 인체 영역 네트워크에서 인체 내의 송신기가 송신한 신호에 대한 수신 성능을 개선할 수 있다. WBAN, 다이버시티, 그룹
Abstract:
PURPOSE: A capsule type endoscopy system, a medical system, and an operational method of the medical system are provided to improve the accuracy of a diagnosis by forming a network two or more implantable medical devices and a controller which is located on the outside of a human body. CONSTITUTION: A first implantable medical device(IMD)(100) is inserted inside of a human body. The first IMD obtains image data by photographing the inside of the human body. A second IMD(200) performs a medical treatment with respect to the organisms inside of the human body. A controller(300) is located in the outside of the human body. The controller analyses the image data from the first IMD. The controller transmits control signal to the second IMD.
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: An automatic gain control device using effective reception structure of an ultra-wide band wireless communication system based on an impulse signal and a method thereof are provided to control receiving gain steadily by optimizing receiving state making low the gain after configuring the gain as the maximum value in early state of reception. CONSTITUTION: A matching filter(300) secures SNR(Signal to Noise Ratio) of a received signal through an analog circuit unit(100). A comparison unit(600) compares the maximum correlation value according to an output result of an adding unit(500) with preset one or more critical value. Based on determined attenuated gain result of the comparison unit, a gain controller(700) configures or changes a gain value of an LNA(Low Noise Amplifier)(120) and a VGA(Variable Gain Amplifier)(150) of the analog circuit unit.
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:
본 발명은 이종 변복조 방식을 지원하는 저속 무선 개인 통신 네트워크 구성 기술에 관한 것으로, 코디네이터에서 설정된 비콘 주기에 이종의 변복조 방식 중 하나의 변조 방식을 선택하여 변조된 비콘 프레임을 전송하고, 선택된 변조 방식과 동일한 복조 방식으로 다음 비콘을 전송하기 까지 수신 대기하며, 디바이스로부터의 네트워크 연결요청 유무를 판단하여 디바이스로부터 연결요청이 없을 경우 다른 변복조 방식으로 변환하여 변조된 비콘 프레임을 전송하고, 상기 디바이스로부터 연결 요청을 수신하는 경우, 디바이스로부터의 연결요청에 응답하고 선택된 변복조 방식을 송수신 방식으로 결정하는 것을 특징으로 한다. 본 발명에 의하면, 저속 무선 개인 통신 네트워크에서 다중모드의 변복조가 수행되도록 함으로써, 서로 다른 변복조 방식을 지원하는 디바이스를 이용한 네트워크의 구성을 가능하게 할 수 있으며, 이를 통해 서로 다른 변복조 방식을 이용하는 최적의 네트워크를 구성할 수 있다. 저속 무선 개인 통신 네트워크(LR-WPAN), IEEE 802.15.4, 코디네이터