baber/WOPTO huggingface dataset:
Patent KR-20000045654-A (KR)
Title: Apparatus for unidirectionally converting rotation direction of discharge roller of image forming device
Inventor: JUNG JONG SUNG
IPC: B41J11/00
Filed: 1998-12-30
Abstract: PURPOSE: A device for unidirectionally converting a rotation direction of a discharge roller of an image forming apparatus is provided to always rotate a discharge roller in a direction to discharge a paper regardless of a rotation direction of a feed roller, thereby improving the whole printing speed. CONSTITUTION: A device for unidirectionally converting a rotation direction of a discharge roller of an image forming apparatus includes a feed gear(11) applied with rotation force from an external power supply for rotating a feed roller(1), a swing base gear(13) applied with rotation force from the feed gear for rotating in a same rotation direction with the feed gear, a swing gear(16) applied with rotation force from the swing base gear for removing in position by circular arc movement with relation to a gear shaft of the swing base gear according to the rotation direction of the swing base gear, first and second swing transmission gears(17,18) to be applied with rotation force from the swing gear by moving in association with the circular arc movement of the swing gear, a unidirectional rotation gear(19) applied with the rotation force directly from the first gear and via a conversion gear from the second gear for rotating unidirectionally regardless of the rotation directions of the first and second gears, and a discharge gear(12) rotating in association with the unidirectional rotation gear for rotating a discharge roller(2).
Patent KR-20000047028-A (KR)
Title: High speed transfer apparatus in atm aal-5 and method thereof
Inventor: JEON KI YONG
IPC: H04L12/28
Filed: 1998-12-31
Abstract: PURPOSE: A high speed transfer apparatus in the ATM AAL-5(ATM Adaptive Layer-5) and the method thereof, capable of high speed transfer and applicable to the multichannel by removing the bottle neck state in data transmission, are provided. CONSTITUTION: A transmitting memory(30) is divided into two blocks(30-1,30-2). While one block(30-1) is recording data inputted from a data transmitting part(40), data stored in the other block(30-2) are transmitted to an AAL-5 formatting/deformatting part(42). A receiving memory(36) is divided into two blocks(36-1,36-2). While one block(36-1) is recording data inputted from the AAL-5 formatting/deformatting part(42), data stored in the other block(36-2) are transmitted to the data transmitting part(40). The data transmit-receive part(40), receiving transmitting data, determines the start and end of a packet and stores packet data in the transmitting memory(30). The AAL-5 formatting/deformatting part(42) formats the data of the transmitting memory(30) so as to satisfy the AAL-5 format and deformats ATM cells so as to satisfy the AAL-5 format.
Patent KR-19990028876-A (KR)
Title: 배터리 충전과정의 제어 및 종결방법
IPC: B01F7/04
Filed: 1996-07-10
Abstract: 배터리의 과열 또는 손상을 피하면서, 가능한한 신속히 배터리를 충전하도록 배터리 충전과정을 조정하기 위한 방법 및 장치.    방법은 평균 충전 전류를 제공하는 충전 펄스(C1)를 인가하고, 제 1 탈분극 펄스(D1)를 인가하며, 제 1 휴지기(DW1)를 대기하며, 제 1 휴지기내의 예정 시점에서 전압(V1)을 측정하며, 제 2 탈분극 펄스(D2)를 인가하며, 제 2 휴지기(DW2)를 대기하며, 제 2 휴지기내의 예정 시점에서 전압(V2)을 측정하며, 전압(V1)과 전압(V2)간의 차이를 측정한 다음, 차이가 예정량 보다 클 경우 평균 충전 전류를 감소시키는 단계를 제공한다.   본 발명은 또한 배터리가 물에 있어 낮은 수준에 있는지 여부를 측정하는 방법도 제공한다.
Patent KR-19990035920-A (KR)
Title: 차량의 이동거리 측정 시스템 및 그 방법
IPC: G01C22/00
Filed: 1996-07-19
Abstract: 도로 이용에 대해 이용 요금이 이용자에게 부과되도록 하기 위해 차량에 의해 이동된 거리를 측정하는 시스템 및 그 방법이 개시된다. 차량 V는 지상 위치 탐색 시스템 40, 제어 유닛 42 및 무선 패킷 모뎀 44를 갖는 컨트롤러 15를 구비함으로써, 상기 지상 위치 탐색 시스템 40에 의해 수신된 데이터를 조절하여 소정 시간 주기에 위치 탐색 신호가 발생되도록 하고, 상기 제어 유닛 42는 그러한 정보를 처리하여 거리 이동 데이터를 계산하거나 상기 처리된 정보를 간단히 지상탑 20, 21 및 22에 송신한 다음, 감시국 30에 송신함으로써, 거리 측정값이 결정되어 도로 이용에 관한 차량의 소유자에게 이용 요금이 부과 될 수 있다.
Patent KR-19990081942-A (KR)
Title: 신체로부터 유체를 제거하거나 주입할 수 있는 연성화되는기구
IPC: A61M25/06
Filed: 1997-01-22
Abstract: 본 발명은 동물 및 인간의 신체로부터 유체를 제거하거나 치료물질을 주입하는데 사용하는 의료기기에 관한 것으로서, 이 의료기기는 중공형이고, 앞쪽단과 뒤쪽단을 갖는 바늘과 같은 구조이며, 앞쪽단(34)은 끝단에는 뾰족한 끝단(32)으로 형성된다. 
     또한, 상기 바늘과 같은 구조는 상기 뾰족한 끝단(32)은 주변온도에서 피부에 삽입될 수 있는 정도의 경도를 가지는 폴리머로 형성되고, 체온과 체유에 노출되면 일정시간후에 연성화되어져, 피부에 대한 외상을 방지할 수 있게 된다. 
     상기 바늘과 같은 구조의 뒤쪽단에는 허브(36)가 부착되는 바, 바늘과 같은 구조보다 큰 직경을 갖는다. 
     또한 상기 허브는 신체로부터 유체를 제거하거나 주입할 수 있는 기구 또는핸들을 부착할 수 있도록 한 커넥터(60)를 포함한다.
Patent KR-20000005129-A (KR)
Title: Photochromic naphthopyran compositions of neutral color
Inventor: VAN GEMERT BARRY
IPC: C08K5/1545
Filed: 1997-03-26
Abstract: PURPOSE: Described are novel compositions of a carrier and at least two photochromic naphthopyran compounds. CONSTITUTION: The novel compositions of a carrier and at least two photochromic naphthopyran compounds are selected on the basis of specific criteria, that when exposed to solar ultraviolet radiation, exhibit neutral colors of gray or brown contained within the a* and b* ranges of +10 to -10 in the CIELAB color system. Also described are carriers, i.e., organic solvents and organic polymeric host materials, such as optically clear articles, e.g., ophthalmic lenses or other plastic transparencies that contain or that are coated with the naphthopyran compounds.
Patent KR-20000064922-A (KR)
Title: 광도파회로와그제조방법및광도파회로를구비하는광도파회로모듈
IPC: G02B6/34
Filed: 1998-02-16
Abstract: 길이가 다른 다수의 도파로를 포함하는 광도파회로에 있어서, 
     상기 도파로의 실효굴절율과 온도계수가 다른 부호의 굴절율 온도계수를 구비하는 재료(10)를, 상기 도파로(4)의 상부 피복과 코어를 제거한 홈(12), 또는  상부피복과 코어와 하부 피복을 제거한 홈(12)에 충전된다. 또한, 인접하는 도파로 사이에서 제거된 도파로의 길이의 차이를, 제거하지 않고 남은 도파로의 길이의 차에 비례시킨다.
Patent KR-20000015908-A (KR)
Title: Fluoroelastomer compositions
Inventor: JING NAIYONG
IPC: C08L71/02
Filed: 1996-09-24
Abstract: PURPOSE: Fluorocarbon elastomer compositions which can be used as an automotive fuel line hose and O-ring seals are provided, which show sufficient functions even at a low temperature and don't have a tendency to be scorched. CONSTITUTION: The composition comprises fluorocarbon elastomer gums such as a copolymer of vinylidene fluoride and hexafluoropropene; and fluorinated ether compositions comprising a functional fluoroaliphatic mono or poly ether salt. The functional fluoroaliphatic ether comprises linear or branched perfluoroxyalkylene ether groups, wherein the groups may be random, block, or any combination thereof, each end of the perfluoro ether is bonded to a terminal group, and at least one of such terminal groups is an alkoxide metal salt or an amino salt. The compositions act as low-temperature flexibilizers imparting the improved low-temperature flexibility to the cured fluorocarbon elastomer composition, improve the overall processability of the composition, and impart the improved flow properties to the curable fluorocarbon elastomer composition.
Patent KR-20000016184-A (KR)
Title: Method and apparatus for compression compatible video scrambling
Inventor: RYAN JOHN O
IPC: H04N7/169
Filed: 1997-05-29
Abstract: PURPOSE: A compression system is to operate on scrambled versus unscrambled video without any increase in the bit-rate needed to provide a given picture quality, and system performance(noise, distortion, etc.) is to be unaffected by the inclusion of the scrambling function. CONSTITUTION: A scrambling technique is based on the principle of applying local spatial distortion to the pixels in a video image to locally displace the pixels from their normal locations. A spatial image distortion (SID) scrambler has properties; displacement of each pixel of the original image by a certain amount (which may be zero) horizontally and/or vertically. maintaining a given pixel in the scrambled image with the same set of contiguous pixels that it had in the original image. pixels lying along the borders of the image preferably are not displaced to locations outside those borders, to avoid loss of portions of the image. The complementary descrambling technique restores the locally displaced pixels to their normal locations to restore the video image to its original unscrambled state.
Patent KR-20000016668-A (KR)
Title: Modified carbon absorbent and absorbing method thereof
Inventor: RANZAN GOSAL
IPC: B01J41/18
Filed: 1997-06-05
Abstract: PURPOSE: An absorbent composition containing a modified carbon material for absorbing an absorbed material being attached by more than one organic substance and a method for increasing the absorbing capacity of the carbon material absorbing the absorbed material by using the absorbent composition. CONSTITUTION: An absorbing method of an absorbed material includes a step for contacting a modified carbon material to the absorbed material by attaching an organic substance. Herein, the modified carbon material can absorb the absorbed material while being attached by more than one organic substance. An activated carbon, a carbon black, other carbon materials being obtained by heat analyzing a cellulose, a fuel oil, a polymer, or other precursor, a waste, or a carbon material of by-product is included as the carbon material for absorbing the absorbed material. In addition, more than one diazonium salt is reacted with the carbon material while absence of the electric current being fed with from outside for returning the diazonium salt for attaching the organic substance to the carbon material.
Patent KR-19990072279-A (KR)
Title: 광학식픽업장치및그제조방법
IPC: G11B7/09
Filed: 1999-01-19
Abstract: 본 발명은, 베이스에 대하여 렌즈홀더의 위치 또는 각도 설정을 고정밀도로 유지할 수 있음과 동시에, 광학식 픽업장치의 제조공정을 간략화할 수 있는 것을 과제로 한다. 
     그 해결 수단은, 렌즈홀더 (10) 와 베이스 (11) 를 한쌍의 연결부 (12) 를 통하여 연결한 일체 성형품 (13) 을 사출성형하고, 이들 연결부 (12) 근방에 있어서의 렌즈홀더 (10) 와 베이스 (11) 에 각각 둥근 구멍 (14) 을 형성한다.     렌즈홀더 (10) 와 베이스 (11) 의 기립부 (11a) 에 4 개의 와이어 (20) 를 접착시킨 후, 다이 (21) 의 위치결정 핀 (22) 에 각각의 둥근 구멍 (14) 을 삽입시킨 상태에서, 프레스 가공기의 펀치 (23) 로 양 연결부 (12) 를 절단하고, 양 연결부 (12) 를 제거한다.
Patent KR-20000054950-A (KR)
Inventor: LEE HYEON JU
IPC: H01L21/74
Filed: 1999-02-02
Abstract: PURPOSE: A method for manufacturing a semiconductor apparatus is to increase an alignment margin of a storage electrode relative to a buried contact hole. CONSTITUTION: A manufacturing method comprises the steps of: forming a first insulation layer(102) and an anti-etching layer(104) on a semiconductor substrate(100) in order; etching the anti-etching layer and the first insulation layer to form a contact hole(106) for exposing a conductive region of the semiconductor substrate; forming a conductive layer on the former layer as to bury the contact hole; patterning the conductive layer; forming a spacer consisting of a second insulation layer on the pattered conductive layer; etching the patterned conductive layer using the spacer as a mask; and removing the spacer.
Patent KR-20000055197-A (KR)
Inventor: JEON SI MOON
IPC: D06F37/26
Filed: 1999-02-04
Abstract: PURPOSE: A laundry machine having an inclined washer tub is provided to accomplish a convenient receipt of laundry and augmented efficiency of washing action while arranging a washer tub to be inclined at a predetermined angle. CONSTITUTION: A laundry machine comprises a laundry machine case(50), a washer tub(60) positioned to be inclined at a predetermined angle with respect to a vertical direction within the case(50) and has an inner tub(65) for performing washing operation, a washer tub fixing member which supports the tub(60) within the case(50) in such a manner that the tub(60) is inclined at a predetermined angle with respect to a vertical direction, and a driving motor(80) installed beneath the tub(60) so as to drive the inner tub(65). The washer tub fixing member is constituted by a rod-shaped hanger having an upper end portion fixed to the laundry machine case(500 and a lower end portion fixed to the washer tub(60).
Patent KR-20000016828-A (KR)
Inventor: HIGGINS THIRD JOHNDY
IPC: A61P43/00
Filed: 1999-02-04
Abstract: PURPOSE: A method for preparing a discrete stanol/sterol-ester by direct esterification of stanol or sterol with a fatty acid provides a synthesis rout adequate to the mass production of a pure stanol/sterol ester having the formula 1 at high yield. CONSTITUTION: The method comprises adding a stanol/sterol represented by the formula 2 and an acid; and reacting the stanol/sterol with the acid in the presence of a mild acid as a catalyst to produce a discrete stanol/sterol ester represented by the formula 1: wherein R1 is a C6-C23 carbon chain; and R2 is a C3-C15 carbon chain. A melted fatty acid is used as a solvent and the mild acid is NaHSO4. The sterol/stanol-ester is added in an amount of more than about 98 wt.%. The reaction temperature is in the range from about 100°C to about 200°C. The reaction is performed under vacuum.
Patent KR-19990072548-A (KR)
Title: 매치드필터뱅크
IPC: H04B1/707
Filed: 1999-02-10
Abstract: 복수의 매치드필터와 전체 매치드필터에 의해 일반적으로 사용되는 샘플홀드회로군을 포함하는 매치드필터뱅크에 관한 것이다. 그러므로, 상기 회로크기는 감소된다. 
     입력커패시턴스와 입력커패시턴스의 출력에 접속된 반전증폭기와 상기 반전증폭기의 입력과 출력 사이에 접속된 복수의 귀환커패시턴스를 포함하는 가변이득을 얻는 매치드필터용 반전증폭기를 제공한다. 복수의 스위치는 반전증폭기의 입력과 기준전압에 귀환커패시턴스를 택일적으로 접속하기 위해 상기 귀환커패시턴스의 입력측에 접속된다. 상기 기준전압에 접속된 상기 귀환커패시턴스는 귀환커패시턴스의 합성커패시턴스의 측면에서 볼 때 무효하고, 증폭기에는 아무런 영향을 주지 않는다.
Patent KR-20000061383-A (KR)
Inventor: JUNG CHUNG SIK
IPC: H04N9/29
Filed: 1999-03-25
Abstract: PURPOSE: A degaussing circuit for a television using DC voltage is provided to operate with low voltage, thereby minimizing electric shock and emergency accidents caused by high voltage. CONSTITUTION: The degaussing circuit for a television using a DC voltage includes a signal generating unit(11), a DC voltage supplier(16), a signal dividing unit(12), a level shifting unit(13), a degaussing coil(L), a degaussing current input unit(15) and a first switching unit(13). The signal generating unit generates a DC voltage signal and a square-wave signal. The DC voltage supplier generates a DC voltage. The signal dividing unit generates a first square-wave signal and a second square-wave signal mutually inverted in phase by inverting in phase the square-wave signal. The level shifting unit shifts in level the DC voltage into an AC voltage type by connecting and disconnecting the DC voltage in response to the first and second square-wave signals. The degaussing coil operates by receiving an AC current signal. The degaussing current input unit generates the current signal during charging the DC voltage. The switching unit includes a first switch element(Q1) and a second switch element(Q3) and supplies the AC current signal for the degaussing coil. The first switch element supplies the current signal for the degaussing coil in response to the first square-wave signal. The second switch element supplies the current signal for the degaussing coil in response to the second square-wave signal.
Patent KR-19990087922-A (KR)
Title: 멀티버스데이터처리시스템에서확장버스슬롯을선택적으로사용금지하는방법및시스템
IPC: G06F13/00
Filed: 1999-04-15
Abstract: 본 발명은 자동으로 형성된 구성으로 주변 장치를 상호 연결하기 위한 다수의 슬롯을 구비하는 주변 장치 연결(Peripheral Component Interconnect; PCI) 버스와 사용자 선택 구성으로 주변 장치를 상호 연결하기 위해 다수의 슬롯을 구비하는 공업 표준 아키텍처(Industry Standard Architecture; ISA) 버스를 포함하는 멀티버스 데이터 처리 시스템에서 주변 장치 간의 충돌을 제거하기 위한 방법 및 시스템에 관한 것이다.  ISA 버스에 포함된 각 슬롯은 전원 변동의 문제를 방지하기 위하여 데이터 처리 시스템으로의 전원 공급에 응답하여 관련된 슬롯을 일시적으로 사용 금지하기 위한 리셋 라인을 포함한다.  사용자 선택 구성에 의해 발생된 현존하는 장치 또는 장치 간의 잠재적인 충돌에 응답하여, 제어 신호는 ISA 버스에 포함된 하나 이상의 슬롯에 대한 리셋 라인으로 선택적으로 인가되고, 데이터 처리 시스템의 정상 동작 중 상기 슬롯을 일시적으로 사용 금지시킨다.
Patent KR-20000066433-A (KR)
Inventor: MUN NAM SU
IPC: H04Q1/00
Filed: 1999-04-16
Abstract: PURPOSE: An apparatus for managing a board state in a digital subscriber line-access multiplexer(DSLAM) system is provided to improve a reliability of a management function of the board state by checking a hardware state and a software state of a CPU, checking a state of an other module through a process for identifying as to whether a data transmission with a management board is normally performed, and displaying checked states. CONSTITUTION: A CPU(110) periodically transmits its board state information to a management board(200) and judges as to whether a response signal outputted from the management board(200) is received, The CPU(110) outputs an error state display signal to a first display unit(140) and outputs a periodic reset signal to a first fault monitoring unit when the response signal outputted from the management board(200) is not received. A first bus interface unit(120) receives board state information outputted from the first CPU(110) to transmit received board state information to the management board(200). The first bus interface unit(120) receives the response signal transmitted from the management board(200) through a data bus and transmits the received response signal to the first CPU(110). The first fault monitoring unit(130) performs an interface function between the first CPU(110) and the first display unit(140) and continuously checks a hardware state and a software state of the first CPU(110).
Patent KR-20000073183-A (KR)
Inventor: KIM CHEOL GYU
IPC: H01L23/495
Filed: 1999-05-07
Abstract: PURPOSE: A lead frame for embodying a thin package is to provide the thin package of 1 millimeter in depth, by reducing a chip crack, and by minimizing a variation of the lead frame. CONSTITUTION: A lead frame for embodying a thin package without a chip crack comprises a die pad(120), a plurality of leads(121) and a tie bar. A semiconductor chip(130) is mounted on the die pad. The plurality of leads are arranged near the die pad, and electrically connected to the semiconductor chip. The semiconductor chip is to be mounted on the die pad. The tie bar supports the die pad. The die pad is down set-processed to a predetermined depth deeper than the leads. The tie bar is multi-bent and is connected to the die pad.
Patent KR-19990073101-A (KR)
Title: 주문형레코딩테이프자동판매장치및시스템
Filed: 1999-05-10
Abstract: 본 발명은 주문형 레코딩 테이프 자동 판매 장치 및 시스템에 관한 것이다. 
     그 장치는 복수개의 공테이프를 보관하기 위한 테이프 보관부; 요금을 투입하기 위한 요금 투입부; 노래 곡목을 디스플레이하고, 사용자로 하여금 상기 노래의 선곡 및 주문을 유도하기 위한 데이터를 디스플레이하고, 상기 디스플레이된 노래의 선곡 및 주문키를 입력하기 위한 터치 스크린 모니터; 디지털 음악 데이터를 저장하며, 상기 저장된 음악 데이터로부터 상기 터치 스크린 모니터를 통해 이용자에 의해 선곡된 곡의 음악 데이터를 재생하여 아날로그 신호로 변환후 상기 테이프 보관부에서 인출되어 장전된 테이프상에 녹음하도록 하기 위한 음악 데이터 녹음부; 및 상기 요금 투입부로의 요금 투입과 상기 터치 스크린 모니터로의 선곡 및 주문키 입력에 근거하여 상기 테이프 보관부에 보관된 테이프를 인출하여 상기 음악 데이터 녹음부에 장전시키고, 상기 선곡된 곡목을 상기 음악 데이터 녹음부에 통보하며, 녹음 종료후에는 상기 녹음된 테이프를 인출하여 이용자에게로 출력하도록 제어하기 위한 제어부를 포함함을 특징으로 한다. 
     본 발명에 따르면, 이용자는 자신이 원하는 곡목들만 포함된 테이프를 구입할 수 있다. 또한, MP 3라는 디지털 음원을 기초로 테이프상에 녹음한 것이므로 일반 테이프에 비해 음질이 우수하며, 판매 가격을 낮출 수 있다.
Patent KR-20000073487-A (KR)
Inventor: KWON HAK SU
IPC: H04N7/08
Filed: 1999-05-11
Abstract: PURPOSE: A method of reserving a program of a digital broadcasting is to previously reserve a desired program through an electronic program guide using a program and system information protocol data of the digital broadcasting. CONSTITUTION: The method of reserving a program of a digital broadcasting comprises the steps of: serving a desired program; forming and storing a database for reserved items selected by a user; and comparing a reserved time stored in the database with a present time of a system and tuning a channel corresponding to an information stored in the database to display an image on a screen. In the method, a program is reserved through an image of the electronic program guide. A reserved state of a program out of the reserved programs, which is broadcasted at a same time and a same day of the week, is continuously maintained by a reserving process at a time. The plurality of programs reserved at a same time are prioritized and displayed by the order of priority. The reserved program is displayed as an icon on the screen of the electronic program guide.
Patent KR-20000075015-A (KR)
Inventor: KANG HYEONG SEOK
IPC: B32B15/01
Filed: 1999-05-27
Abstract: PURPOSE: A superinsulation spacer is provided which can be used in a heat insulator used for superinsulation in a transfer or storage apparatus of ultra low temperature liquefied gas such as liquefied oxygen, liquefied nitrogen, liquefied argon, and liquefied helium. CONSTITUTION: The superinsulation spacer comprises aluminium thin film(16) and the spacer such as porous toilet tissue(14) having a thickness of less than 1mm or a filter(14). The superinsulation spacer coils round a transfer pipe(12) for the ultra low temperature liquefied gas.
Patent KR-19990068635-A (KR)
Title: 경량형강의철선고정지지구조
Filed: 1999-06-07
Abstract: 본 발명은 박강판을 냉간성형하여 만든 경량형강 지주을 이용하여 철선을 지지하는 경우에 부속자재 없이 용이하게 철선을 경량형강 지주에 고정하여 지지할 수 있는 구조를 제공한다. 
     본 발명은 경량형강 몸체에 탭(tab)을 성형하여 탭에 철선을 고정하되 철선에 가해지는 하중이 커지면 탭이 변형되어 고정 지지역할을 할 수 없는 경우가 발생하는 단점을 해결하기 위해 탭의 말단부 폭을 크게 함으로써 탭을 형성하면서 만들어지는 경량형강몸체의 개구부에 삽입되어 쉽게 빠지지 않는 것을 특징으로 한다. 
     본 발명은 철선에 가해지는 하중이 큰 경우에도 철선의 고정지지를 위한 별도의 부속자재없이 철선을 용이하게 고정지지할 수 있어 경량형강지주에 철선을 설치하는데 있어 자재관리가 단순해지는 장점이 있다.
Patent KR-20010001698-A (KR)
Inventor: LEE GI CHEOL
IPC: H04Q11/00
Filed: 1999-06-08
Abstract: PURPOSE: A device/method for exchanging multiwave optical packet by encoding a subcarrier multiplexing packet, is provided to make a transmitting node decide a packet header indicating an address of an output node as a pre-allocated frequency carrier and transmit the packet header, and to make the optical packet exchange and a receiving node handle the header according to detection of the frequency carrier. So that a header processing time can be reduced and hardware for analyzing the header can be simplified. CONSTITUTION: In a transmission terminal of a node, an electric header processor analyzes a header of an electric packet if the electric packet is inputted from an optical packet exchange, to detect an address of a destination sub-node. If a signal detected in the electric header processor is inputted, a variable oscillator generates a frequency carrier corresponding to the address of the destination sub-node. An adder combines the frequency carrier from the variable oscillator with an electric input packet. If the packet combined by the adder and frequency division-multiplexed is inputted, a laser optically modulates the packet and transmits the packet to the optical packet exchange. In the optical exchange, a number N of input/output terminals are included. And a packet router has 1-by-N branching filer and an on-off switch, and performs switching to a destination node of the packet. A number n of buffers(37) prevent collision between packets. A multiplexer(38) multiplexes the packets from the n-optical buffers(37). A controller receives parts of signals inputted through the N inputs, and detects frequency carriers of the signals to control an operation of the on-off switch. In a receiving terminal of the node, a demultiplexer divides the signals from the optical packet exchange according to waves. The on-off switch switches the packet from the demultiplexer to the destination sub-node. An optical receiver receives part of the inputted signals for optical-to-electric conversion. A band pass filter filters the signal from the optical receiver to detect the address of the destination sub-node. A switch controller controls an operation of the on-off switch according to the signal from the band pass filter.
Patent KR-20010002843-A (KR)
Inventor: CHOI YUN HWA
IPC: H01L23/12
Filed: 1999-06-18
Abstract: PURPOSE: A mold type wafer level package is provided to perform a packaging process and a molding process in a state of a wafer. CONSTITUTION: A mold type wafer level package comprises a semiconductor chip, a lower insulating layer(20), a metal pattern(30), an upper insulating layer(21), a solder ball(40), a pad layer(22), an auxiliary junction layer(51), a sealant(60), and a mounting solder ball(41). The semiconductor chip comprises a bonding pad(11) arranged on its surface. The lower insulating layer(20) is applied on a surface of the semiconductor chip. The metal pattern(30) is connected electrically with the bonding pad(11) and the lower insulating layer(20). The upper insulating layer(21) is applied on the lower insulating layer(20). The solder ball(40) is mounted on the metal pattern(30). The pad layer(22) is applied on the upper insulating layer(21). The auxiliary junction layer(51) is formed on the solder ball(40). The sealant(60) is molded on the whole structure. The mounting solder ball(41) is mounted on the exposed auxiliary junction layer(51).