Abstract:
PURPOSE: A method and a system for setting intelligent connection between an image device and a peripheral device are provided to automatically receive device information from the external peripheral device connected to the image device and calculate optimal connection setup between the image device and the external peripheral device. CONSTITUTION: A packet generating unit(120) retrieves a peripheral device(200), inquires back-panel information, and generates a data packet suitable a protocol for checking a connection state. A memory(140) stores connection state information indicating the connection state with the peripheral device. A graphic generating unit(150) generates the connection state as a graphic using back-panel information received from the peripheral device. A control unit(130) senses the connected peripheral device using the data packet, requests back-panel information of the peripheral device, calculates optical connection setup, and judges whether a current connection state is an optimal connection state on the basis of the calculated result.
Abstract:
PURPOSE: A laser marking apparatus for a semiconductor wafer is provided to effectively remove particles from a semiconductor wafer by enlarging the spray hole of the air nozzle. CONSTITUTION: A laser marking apparatus has a laser source(120) inscribed with an indicator for discriminating a semiconductor wafer(100). An air nozzle(130) is placed over the semiconductor wafer(100) to remove particles(150) generated from the semiconductor wafer(100) during the inscription process by way of the laser source(120). An absorption member(140) prevents the particles(150) detached by way of the air nozzle(130) from being reattached to the semiconductor wafer(100). The diameter of the spray hole of the air nozzle(130) is larger than the diameter of the wafer discrimination indicator. The spray hole of the air nozzle(130) has a diameter ranged from 1cm¬2 to 3cm¬2. The spray hole of the air nozzle(130) and the absorption hole of the absorption member(140) are placed at the same rectilinear line.
Abstract:
본 발명은 휴대전화기나 전송장치등에 이용되는 고주파용의 소형 표면 탄성파 필터에 관한 것으로, 인피던스 정합회로를 구성하는 인덕턴스소자 및 캐패시터를 모두 패키지내에 위치시킴으로써 크기를 소형화함과 동시에 IDT전극과 인덕턴스소자를 서로 간섭되지 않게 배치 함으로써 표면파 및 EM파에 의한 출력신호 왜곡 가능성을 배제시키는데 그 목적이 있다. 이러한 본 발명은 압전체기판상에 입/출력용의 IDT전극이 형성되어 이루어지는 필터칩과, 상기 필터칩을 수용하는 패키지를 포함하여 구성되는 표면 탄성파 필터에 있어서, 상기 필터칩은 그의 전면(IDT전극이 형성된 면)이 패키지의 바닥을 향하도록 지지부재에 의해 지지되고, 필터칩의 후면에는 이 칩에 대한 입력 및 출력의 임피던스 정합회로를 이루는 캐패시터 및 인덕턴스소자가 비전도성수지층의 개재하에 박막 형태로 각각 형성되며, 상기 인덕턴스소자는 IDT전극의 버스바와 연결되도록 필터칩의 후면 양측에 형성된 입출력단자와, 이 단자와 패키지의 단자를 연결하는 금속세선으로 이루어진 것을 특징으로 한다. 여기서 상기 지지부재는 IDT전극의 주위를 에워 싸도록 형성되는 다수의 솔더 범프로 되어 IDT전극을 밀폐하도록 구성된다.
Abstract:
PURPOSE: A circuit board and method for manufacturing the same is provided to reduce the size and weight of the circuit board by adjusting the size of the microstrip line through the use of a plurality of dielectric materials having dielectric constants corresponding to each frequency. CONSTITUTION: A circuit board comprises a grounding plate(5) constituted by a metallic plate; an insulating layer(10) formed onto the grounding plate, and constituted by first, second and third dielectric materials(23,25,28) having different dielectric constants; and a plurality of microstrip lines(15,17,20) for transmitting electromagnetic signals having different frequencies corresponding to each of dielectric materials having different dielectric constants. The dielectric material used for each of microstrip lines is formed of a dielectric material having a dielectric constant which becomes larger as the frequency of the electromagnetic signal decreases.
Abstract:
본발명은데이터처리시스템의디코더, 그리고그것의에러정정코드처리방법에관한것이다. 상기디코더는내부디코더, 외부디코더, 및디코더컨트롤러를포함한다. 상기디코더는상기내부디코더의디코딩결과에따라상기외부디코더의디코딩동작이생략된다. 따라서, 디코딩과정이단축될수 있다. 또한, 상기내부디코더에의해서디코딩된데이터의에러가정정되지않은경우에, 상기디코더컨트롤러는상기내부디코더의출력이상기외부디코더를구성하는임의의디코더에의해서디코딩되도록제어한다. 그러므로, 상기외부디코더를구성하는복수의디코더들은채널마다할당될필요없이채널의수보다작게구성될수 있다. 따라서, 디코더가간결해질수 있다.