Abstract:
PURPOSE: A magnetic field standard measurement device is provided to measure a magnetic field while moving three points using one device and to confirm measured value at a measured position and at a measured time. CONSTITUTION: A distance member uniformly maintains a distance from a measurement target of a magnetic field. A plurality of measurement members is coupled with a constant distance and connected in a double layer. A calculation and display apparatus transmits and calculates data of a plurality of measurement members. [Reference numerals] (AA) Magnetic field measurement target device; (BB) Calculation and display apparatus; (CC) Data transmission; (DD) Magnetic field measurement device
Abstract:
3차원 집적 회로는 복수의 제1 전원 핀들 및 복수의 제2 전원 핀들을 포함한다. 제1 전원 핀들은 적어도 하나의 회로 기판 상에서 제1 방향으로 제1 간격마다 배치되고, 서로 같은 극성을 갖는다. 제2 전원 핀들은 적어도 하나의 회로 기판 상에서 제1 전원 핀들로부터 제1 방향과 직교하는 제2 방향으로 제1 거리만큼 이격되어 제1 방향으로 제2 간격마다 배치되며, 제1 전원 핀들과 반대의 극성을 갖는다. 따라서, 같은 극성을 갖는 전원 핀들이 일렬로 배열되므로 전원 핀들의 인덕턴스가 감소하여 3차원 집적 회로에서 발생하는 전원 노이즈가 저감된다.
Abstract:
PURPOSE: An intercommunication device using the multi-frequency band matching of a wireless power rapid progress line is provided to match the wireless power rapid progress line with a multi-frequency band and perform wireless communication between a feeding device and a collecting device by using the matched multi-frequency band. CONSTITUTION: A feeding device(200) includes a feeding coil(220), a feeding core(210), and a communication unit. A current flows in the feeding coil. The feeding core delivers a magnetic field generated by the currents of the coil to a collecting device(100). The communication unit performs wireless communication with the collecting device by using a resonant frequency band except for a wireless power transmission frequency between the feeding device and the collecting device.
Abstract:
PURPOSE: An automatically controlled apparatus and method for shielding a reverse current using a magnetic field sensor capable of minimizing the generation of electromagnetic waves and a method thereof are provided to shield electromagnetic waves by applying a reverse current around a wire. CONSTITUTION: A magnetic field generating device(60) generates a leakage magnetic field(611) to be shielded. A magnetic field sensor part(621) transmits a detected leakage magnetic field signal to an EMF(Electromagnetic Field) size detecting part(622) in a controller block by sensing a leakage magnetic field. The EMF size detecting part transmits a size value of a magnetic field to a shield current calculation part(624). A phase detection part(623) detects a phase of the magnetic field from the leakage magnetic field signal detected from the magnetic field detecting part. The shield current calculation part produces proper size and phase values of the shield current flowing in the shielding coil from size and phase information of the leakage magnetic field.
Abstract:
PURPOSE: A wireless power transmission system including a magnetic shielding film for minimizing magnetic field interference between adjacent coils is provided to improve magnetic coupling between a primary coil and a secondary coil by minimizing the magnetic coupling between primary coils or between secondary coils. CONSTITUTION: A power supply apparatus includes a power supply core(511) and a plurality of power supply coils(512) corresponding to a primary coil. A magnetic shield film(513) using a magnetic material is installed between pluralities of primary coils. The magnetic shield film minimizes magnetic coupling between the primary coils. The magnetic shield film prevents an H Field generated from the primary power supply coil from being transmitted to adjacent second, third, and fourth coils.
Abstract:
인덕터는 복수의 관통 실리콘 비아들, 복수의 제1 전도성 패턴들 및 복수의 제2 전도성 패턴들을 포함한다. 복수의 관통 실리콘 비아들은 기판을 관통하여 형성된다. 복수의 제1 전도성 패턴들은 복수의 관통 실리콘 비아들 중 적어도 두 개가 전기적으로 연결되도록 기판의 일면에 형성된다. 복수의 제2 전도성 패턴들은 복수의 관통 실리콘 비아들 중 적어도 두 개가 전기적으로 연결되도록 기판의 타면에 형성된다. 복수의 관통 실리콘 비아들, 복수의 제1 전도성 패턴들 및 복수의 제2 전도성 패턴들은 하나의 코일 구조를 형성하고, 복수의 제1 전도성 패턴들은 기판의 일면에 형성되는 금속층 내에 포함되며, 복수의 제2 전도성 패턴들은 기판의 타면에 형성되는 재배선층 내에 포함된다.
Abstract:
PURPOSE: A monorail type power supply device for an electric vehicle with an EMF cancellation apparatus is provided to reduce the strength of EMF occurring in a power supply device for an electric vehicle buried under the ground. CONSTITUTION: A monorail type power supply device for an electric vehicle with an EMF cancellation apparatus comprises the following elements. A flat power supply line(110) is buried in a road. An insulator(120) is stacked on the rear side of the power supply line. A power supply core is stacked on the rear side of the insulator. One ends of split return lines(200a,200b) are electrically connected to one end of the power supply line and the other ends of the split return lines are electrically connected to a power supply device(600).
Abstract:
PURPOSE: A shielding structure for shielding crosstalk in a semiconductor chip with a through silicon via is provided to prevent crosstalk between through silicon vias by including a crosstalk shielding unit which surrounds the through silicon via. CONSTITUTION: A plurality of through silicon vias(220A,220B) pass through a silicon substrate(210). A crosstalk shielding unit(230) surrounds at least one through silicon via and is formed on the inner side of an insulator formed on the upper side of the silicon substrate. A ring(230A) surrounds the through silicon via.
Abstract:
UHF 대역 RFID 리더기에서 DC 오프셋 신호 제거 장치는 샘플링 클락 신호 및 샘플링 제어 신호에 응답하여, 인페이즈(in-phase) 채널 신호를 수신하고 인페이즈 채널 신호의 프리앰블(preamble) 구간 동안에 데이터 레이트(data rate)의 정수배에 해당하는 주파수로 프리앰블 신호를 샘플링하고 샘플링된 값들의 제 1 누적값 및 제 1 샘플링 횟수에 기초하여 DC 오프셋이 제거된 인페이즈 채널 신호를 제공하는 제 1 DC 오프셋 제거부 및 샘플링 클락 신호 및 샘플링 제어 신호에 응답하여, 쿼드러처페이즈(quadrature-phase) 채널 신호를 수신하고 쿼드러처페이즈 채널 신호의 프리앰블 구간 동안에 데이터 레이트의 정수배에 해당하는 주파수로 프리앰블 신호를 샘플링하고 샘플링된 값들의 제 2 누적값 및 제 2 샘플링 횟수에 기초하여 DC 오프셋이 제거된 쿼드러처페이즈 채널 신호를 제공하는 제 2 DC 오프셋 제거부를 포함한다.
Abstract:
PURPOSE: An apparatus for removing DC offset in a UHF(Ultra High Frequency) RFID(Radio Frequency ID) reader, an RFID reader including the same, and a method for removing the DC offset are provided to reduce reader errors while effectively removing a DC offset signal. CONSTITUTION: A first DC(Direct Current) offset remover(510) offers an in-phase channel signal in which DC offset is removed and receives the phase channel signal according to a sampling control signal and a sampling clock signal. A second DC offset sremover(520) offers a quadrature-phase channel signal in which the DC offset is removed receives the quadrature-phase channel signal.