Abstract:
A device and method for managing a heterogeneous multi-core processor system are provided to allocate cores in the execution of an application based on the status of the cores embedded in heterogeneous multi-core processors. The device for managing a heterogeneous multi-core process system includes a management unit which receives the status of the cores embedded in the heterogeneous multi-core processors from a provided operating system layer and manages the cores; a determination unit which determines a core allocated in the execution of the application among the cores embedded in the heterogeneous multi-core processors, based on the status of the cores, which is received from the management unit; and an allocation unit which allocates the core determined in the determination unit in the execution of the application.
Abstract:
According to the present invention, a method for tracking a beam path using a three-dimensional modeling structure comprises the steps of: creating and developing the three-dimensional modeling structure for a window and a window frame; setting a transmitting point and a receiving point of a beam to a position to be predicted in the developed three-dimensional modeling structure and generating the beam at the transmitting point; forming the path of a penetrated wave beam, which passes through the window, between the transmitting point and the receiving point, and analyzing the propagation characteristics of the penetrated wave beam; forming the path of each of a penetrated wave beam, a reflected wave beam and a diffracted wave beam, which pass through the window frame, between the transmitting point and the receiving point, and analyzing the propagation characteristics of each of the penetrated wave beam, the reflected wave beam and the diffracted wave beam; and calculating field strength at the receiving points of all paths formed between the transmitting point and the receiving point, based on the analysis result of each propagation characteristic.
Abstract:
본 발명은 이중 대역 전력 증폭기에 관한 것으로, 보다 구체적으로 전계 효과 트랜지스터의 출력단에 인터디지털 캐패시터를 이용한 전송 선로를 두어 이중 대역의 중심 주파수에 해당하는 고조파 성분을 조절하는 이중 대역 전력 증폭기에 관한 것이다. 본 발명의 일 실시 예에 따른 이중 대역 전력 증폭기는, 제 1 중심 주파수를 출력하는 제 1 정합 회로; 제 2 중심 주파수를 출력하는 제 2 정합 회로; 상기 제 1 정합 회로와 제 2 정합 회로를 정합하여 초기 정합 값을 생성하는 전계 효과 트랜지스터; 및 상기 전계 효과 트랜지스터의 출력단에 직렬로 연결되어, 상기 초기 정합 값을 이동시키는 인터디지털 전송 선로를 포함한다.
Abstract:
The present invention relates to a band pass filter of an RF communication system. The present invention performs a dual band characteristic by combining an equilibrium zero-order resonant part and a non-equilibrium zero-order resonant part. The present invention not only provides a transmission zero point by using a cross-coupling structure near a pass band but also has adjacent signal rejection characteristics.
Abstract:
PURPOSE: A relay antenna is provided to enable a user to effectively maintain a repeater with low costs by implementing an antenna by using a meta-material absorber. CONSTITUTION: An antenna comprises a donor antenna, a server antenna, and a plurality of meta-material absorbers (210). The donor antenna radiates electric waves of a predetermined frequency band. The server antenna is vertically located with the donor antenna. The plurality of the meta-material absorbers is arranged outside the server antenna and the donor antenna.
Abstract:
PURPOSE: A method for measuring real-time performance in Linux-based embedded system is provided to accurately measure delay time which is performance measuring time in real time by using hardware system counter value. CONSTITUTION: A method for measuring real-time performance in Linux-based embedded system comprises: an RTC(Real-Time clock)(336) generating periodical interrupt; an interrupt handler(310) receiving interrupt from the RTC, recording system counter value as an interrupt generation timing value at interrupt receiving timing, and waking-up task corresponding to the interrupt; a scheduler(320) scheduling, in order to preferentially conduct a task with first priority after the task waked-up; and a performance measuring device in real time calculating preemption delay time.
Abstract:
PURPOSE: A low phase noise voltage-controlled oscillator using high-quality factor meta-material transmission line is provided to miniaturize a circuit by improving phase noise characteristics. CONSTITUTION: A ground side is etched to an engraved helix resonance structure. A signal side etches the transmission line of a inter-digital format. The helix resonance structure which is etched on the ground side connects two unit cells of a helix shape in parallel with each other.
Abstract:
PURPOSE: An embedded terminal driving method for providing dynamic upgrade and an embedded terminal thereof are provided to inquire shopping offset of user by providing suitable shopping helper service for dynamic reconfigure technology application. CONSTITUTION: A shopping helper service is discovered(S110). Whether the upgrade related to the shopping helper service is necessary or not is determined(S120). If the upgrade is necessary, it performs dynamic upgrade by communicating with an upgrade server(S130). A shopping helper service application is executed(S140) based on the dynamic upgrade.
Abstract:
본 발명은 임베디드 리눅스 커널의 보안성 강화를 위한 응용 프로그램 구동 방법 및 시스템에 관한 것으로서, 더욱 상세하게는 슈퍼유저의 권한을 분산하여 임베디드 리눅스 커널의 보안성을 강화하는 시스템 및 방법에 관한 것이다. 본 발명에 따른 응용 프로그램 구동 방법은, 사용자에 의해 선택된 응용 프로그램의 보안설정정보를 검색하는 단계; 상기 보안설정정보에 포함된 상기 응용 프로그램에 연관된 사용자 ID(Userid)로 상기 응용 프로그램 프로세스의 사용자 계정을 전환하는 단계; 상기 보안설정정보에 포함된 캐퍼빌리티의 설정 정보에 따라 상기 응용 프로그램 프로세스의 캐퍼빌리티를 설정하는 단계; 상기 보안설정정보에 포함된 기본 디렉토리 정보에 따라 상기 응용 프로그램 프로세스의 기본 디렉토리를 변경하는 단계; 및 상기 응용 프로그램을 구동하는 단계를 통하여 임베디드 리눅스 커널상에서 응용 프로그램을 구동하는 응용 프로그램 구동 방법을 제공한다. 본 발명은 한 명의 사용자가 시스템을 사용하는 임베디드 시스템의 특성을 고려하여 각각의 응용 프로그램 프로세스가 각각의 사용자에 의해 실행되는 것으로 간주함으로써, 종래의 리눅스 시스템 보안 기능을 충분히 활용하여 임베디드 리눅스 시스템을 구성할 수 있다. 임베디드 리눅스 커널, 보안
Abstract:
A photo detector array in which a readout IC is integrated for a laser image signal and a manufacturing method thereof are provided to simplify a manufacturing process by excluding a hybrid packaging process of a separate flip chip. A plurality of optical detection pixels(210) includes a photo diode and a first heterojunction bipolar transistor. The photo diode converts incident light energy into electrical energy. The first heterojunction bipolar transistor selectively converts the electrical energy of the photo diode into electrical signals. An output control circuit(220) includes a second heterojunction bipolar transistor which controls an output of the electrical signals transmitted from a plurality of optical detection pixels. The photo diode, the first heterojunction bipolar transistor, and the second heterojunction bipolar transistor are formed into a single chip integration type on a semi-insulation InP substrate.