Abstract:
호스트기기에 연결시 자동으로 제공되는 메뉴화면을 이용하여 모드선택이 가능한 호스트 연결기기 및 모드선택방법이 제공된다. 호스트기기에 연결가능하며, 연결시 호스트기기와 관련된 복수의 동작모드 중 어느 하나로 동작가능한 호스트 연결기기는, 호스트기기와 연결신호를 송수신하고 호스트기기와 데이터 통신을 수행하는 통신 인터페이스부, 표시부 및 통신 인터페이스부에 호스트기기의 연결신호가 수신되면, 표시부에 동작모드 선택메뉴화면이 표시되도록 제어하는 제어부를 포함한다. 이에 의해, 호스트 연결기기가 호스트기기에 연결되면 자동으로 모드선택과 관련된 메뉴화면이 제공된다. 따라서, 사용자가 호스트기기에 연결전에 호스트 연결기기의 모드선택을 하지 않았거나, 호스트 연결기기의 모드가 여러개가 있음을 모르고 연결한 경우에도, 모드선택의 기회가 자동으로 제공되기 때문에, 사용자의 조작이 편리해진다. 전자기기, 호스트 연결기기, 메뉴화면, 모드선택
Abstract:
PURPOSE: A beam former and a beam forming method are provided to reduce the signal loss and simplify the overall structure by forming a plurality of transmission lines. CONSTITUTION: Lots of the dividers(101) distribute the input signal into the plural routes and output the results. An input switch(103) selects one of the dividers. A phase shifter(102) diversifies the phase of the output signal of the divider. An output switch(104) delivers the output signal of the phase shifter by a transmission-reception antenna(105). The output switch is formed in the output end of transmission line(106).
Abstract:
A broadband microstrip balun and a manufacturing method thereof are provided to remove unnecessary parasitic component by connecting an unbalanced transmission line and a balanced transmission line through an opening. A broadband microstrip balun includes a first strip line(101), a second strip line(301), and a common ground plane(200). The first strip line is formed on an upper substrate(100). An input port(102) is formed in one end of the first strip line. The second strip line is formed on a lower substrate(300). An output port(302) is formed in both end parts of the second strip line. A part of the second strip line is overlapped with the first strip line. The common ground surface is formed between the upper substrate and the lower substrate. The common ground surface has an opening. The opening is the overlapped part of the first strip line and the second strip line.
Abstract:
A high-frequency signal switching device is provided to improve the switching performance for a high frequency signal, as well as a low-frequency signal, by using a diode and a high-impedance line. A switching device includes a bias part(120) applying a bias power and a control signal transmitting part(140) transmitting a control signal for the switching control applied from an exterior. A switching part(130) is driven by the bias power applied from the bias part, and operates at least one diode according to the control signal transmitted from the control signal transmitting part to output an input signal to an output terminal selectively.
Abstract:
A signal conversion device and a position recognition system having the same are provided to prevent the insertion loss and decrease of isolation property in using a semiconductor switch by outputting a signal after modulating the pulse width with a mechanical switch. A signal conversion device is composed of a signal generating unit(310) for generating a preliminary pulse signal(O_PS) in response to an applied synchronization signal; a signal control unit(320) for outputting control signals(CNT) for converting the preliminary pulse signal into pulse signals(PS1,PS2) with the predetermined pulse width by varying the preliminary pulse signal; and a signal modulation unit(330) for converting the preliminary pulse signal into pulse signals with different pulse widths in response to the control signals. The signal modulation unit comprises a switch bank including plural mechanical switches connected in parallel and a transmission line formed between nodes where each mechanical switch is formed.
Abstract:
A complex number transversal filter and a complex frequency converter are provided to maintain a phase difference of 90 degrees between a real part signal and an imaginary part signal by driving an input side and an output side in a balance method. A complex number transversal filter includes a first surface acoustic wave filter(121) and a second surface acoustic wave filter(126). The first surface acoustic wave filter(121) generates a real part of a complex signal by inputting an actual number. The second surface acoustic wave filter(126) generates an imaginary part of the complex number signal. Each surface acoustic wave filter drives an input side of the actual number signal or an output side of the complex number signal in a balance method.
Abstract:
파일복사 방법 및 이를 적용한 호스트 장치가 개시된다. 본 파일복사 방법은 외부기기로 복사하고자 하는 복사대상 파일이 외부기기에서 재생가능한 파일인지를 판별하는 단계, 파일이 외부기기에서 재생 불가능한 파일인 것으로 판별되면, 파일의 포맷을 외부기기에서 재생가능한 포맷으로 변환하는 단계, 파일의 이름이 DCF(Design rule for Camera File system) 규격에 따른 DCF규격 파일명인지를 판별하는 단계, 및 파일의 이름이 DCF규격 파일명이 아닌 것으로 판별되면, 파일의 이름을 DCF 규격 파일명으로 변환하는 단계, 및 파일을 외부기기로 복사하는 단계를 포함한다. 이에 의해, 기기가 재생가능한 파일로 파일 포맷을 변환하고 DCF 규격에 따른 폴더에 DCF 규격 파일명을 제공함으로써 사용자가 DCF 규격을 모르는 경우에도 파일의 복사 및 재생이 용이하다. DCF, 파일명, 파일복사
Abstract:
A memory module and a memory system equipped with the same are provided to selectively enable memory chips in response to multiple chip select signals applied from the outside by including multiple chip select pins. The memory chips(101-108) input/output data by responding to a command and address signal applied from the outside, and are installed to a single rank. The chip select signals respectively receive the chip select signals applied from the outside and apply the received chip select signal to at least one memory chip. The memory chips(111,112) are enabled when the applied chip select signal is a high level and the memory chips are disabled when the applied chip select signal is a low level. The memory chips are a DRAM and the chip select signals are able to have the same signal level.
Abstract:
An output driver for initially enhancing output data with timing and an output driving method are provided to previously generate logical state transition of output data so that an effect like initial enhancement of data is generated, thus circuits for generating high voltages and low voltages are not required. A select signal generator(110) generates a select signal in accordance with input data continuously having available data bits during consecutive bit sections. The select signal is in an active state at a transition time of the input data, which occurs after the same logical state is continued during more than a predetermined number of continuous bit sections. A reference data generator(130) delays the input data for a shorter delay time than the bit sections, and generates the delayed data as reference data. A selector(150) is driven to transit the logical state of the output data by responding to transition of one logical state of the reference data and the input data according to the select signal.
Abstract:
디지털 보정을 사용해 수신기의 오프셋 전압을 제거하고, 데이터와 클록 사이의 스큐를 제거하고, 등화 계수 설정을 통해 채널 간 간섭을 제거하는 등화 수신기가 개시된다. 본 발명에 따른 등화 수신기는 데이터를 전송하기 전에 초기 설정 모드에서 송신단에서 보낸 특정 데이터 패턴의 수신단 입력값을 샘플하여 현재와 이전의 데이터를 비교하여 등화 계수를 설정한다. 등화 수신기, DRAM, 인터페이스