baber/WOPTO huggingface dataset:
Patent KR-20010047612-A (KR)
Inventor: KIM SEONG GYO
IPC: H01L21/265
Filed: 1999-11-22
Abstract: PURPOSE: An ion implantation device is to control more foreign matters by controlling the foreign matters in a hardware mode and to simultaneously accomplish an X axis and a Y axis focusing of the ion beam. CONSTITUTION: An ion beam is generated from an arc chamber(1) which is a source head. An extraction voltage is applied to an extraction slit(2) arranged next to the ion chamber. An ion analyzer(3) placed next to the extraction slit extracts only the required beams. The ion beam is accelerated by an ion beam accelerator(6). A vertical cylindrical rotating slit module(5a) and a horizontal cylindrical rotating slit module(5b) of the same constitution with different location direction are successively provided between the ion analyzer and the ion beam accelerator. The vertical slit module filters any foreign matters while being rotated in a direction opposite to a moving path of the ion beam and accomplishes an X axis focusing of the ion beam. The horizontal slit module accomplishes a Y axis focusing of the ion beam as well as the X axis focusing thereof. The vertical and horizontal modules comprise a rotating plate(500a,500b) and a cylindrical rotating slit(501a,501b).
Patent KR-20000049344-A (KR)
Inventor: JEONG HYUN JEONG
IPC: G03B17/24
Filed: 1999-11-23
Abstract: PURPOSE: A camera for composite pictures is provided to make a user having no technical knowledge take a synthesis picture combining a photographed background with a subject easily by employing a small camera. CONSTITUTION: A position setting hole(14) is formed to help a user adjust a position of a photographed image. The user changes the position of the photographed subject freely by pushing a moving unit(16) in a horizontal direction. In addition, a groove is provided on a first position setting unit(12) of the moving unit(16) to fix the subject on the changed position. Therefore, the user photographs the image easily by employing the position setting hole(14) without deciding the position exactly.
Patent KR-20000007102-A (KR)
Title: Water purifying method and apparatus
Inventor: HAN SANG KWAN
IPC: C02F1/14
Filed: 1999-11-25
Abstract: PURPOSE: A water purifying method by heating the top or bottom parts of the storage water in a dam or reservoir with natural force or a mechanical device is provided to cause a convention process between the top and bottom parts of the storage water and increase a dissolved oxygen in water, thereby leading to self-purification of water. CONSTITUTION: A water purifying apparatus for water treatment comprises:a heat-collecting plate(2) for collecting solar heat; a plurality of pipe members(3) each having a top end part connected near to corners of the lower side of the plate(2) and a bottom tip part extending to the lower side of the plate(2), and ball bearings(4) fixed near to the bottom part of pipe members(3). The heat-collecting plate(2) is separated from the surface of storage water at a predetermined distance by the ball bearings(4) and the solar heat is transferred to the storage water via the pipe members(3).
Patent KR-20010048463-A (KR)
Inventor: KONG SU GIL
IPC: B60C15/04
Filed: 1999-11-26
Abstract: PURPOSE: A pneumatic tire prevents bead separation and improves rotary durability of a bead core. CONSTITUTION: Multiple grooves(3) are formed longitudinally on a bead wire(2) constituting a bead core(1) so that the bead wires(2) grip each other. The number of grooves(3) is 6-36. The distance between the top and the bottom of the groove is 0.1- 1.5mm. The bead wires(2) are wound to form a bead core(1). The rotary durability of the bead core(1) is improved. The heat generated by the friction between bead wires(2) is reduced. The bead wires(2) placed on the outer side of the bead core(1) exert great tensile force to obstruct the rotation of the bead core(1) and restrain the movement of a carcass wire to prevent bead separation.
Patent KR-20000067816-A (KR)
Title: 내층판 용착기
IPC: B32B15/08
Filed: 1999-12-01
Abstract: 본 발명은 표면에 프리프레그(prepreg)가 노출된 1조(組)의 내층 배선판을 레이업(lay up)하고, 용착 헤드로 프리프레그를 용융 용착하여 내층 배선판을 고정한다. 
     다층 프린트 배선판의 제조 공정 중, 내층을 구성하는 양면 배선판과 프리프레그를 교호(交互)로 지그 판에 탑재하여 레이업하고, 주변의 수 개소를 스폿(spot) 형태로 가열 가압하여 프리프레그를 용융 용착하여 상기 내층의 구성 부재를 임시 고정한다. 
     스폿 형태로 가열 가압하는 용착 헤드(17)의 선단과 워크(40) 사이에 테이프(25)를 배치하고, 워크(40) 표면의 프리프레그에 용착 헤드(17)가 직접 접촉하지 않도록 하여 프리프레그 표면의 탄화나 연화되어 용착 헤드(17)의 선단에 부착되는 것을 방지한다.  또, 용착 헤드(17)의 선단에서 형성된 프리프레그 표면의 돌기를 스탬퍼(stamper)(27)로 가압하여 균일하게 하여 표면의 동박(銅箔)의 접착 강도의 저하를 방지한다.  최외층이 양면 배선판인 경우에도 용착 헤드(17)의 선단으로 가열되어 탄화되는 경우가 있어 테이프(25)의 사용은 효과가 있다.
Patent KR-20010054456-A (KR)
Inventor: LEE HUI JUN
IPC: H04B1/7117
Filed: 1999-12-06
Abstract: PURPOSE: A channel estimation method and an apparatus thereof is provided to increase the accuracy of a temporary decision to compensate data symbols, in case that a receiving side in an advanced mobile communication system uses a pilot channel and a data channel for channel estimation at the same time, and to estimate a continuously varying channel more exactly. CONSTITUTION: The first channel estimation unit(100) executes a primary channel estimation using the pilot symbols received through a multi-path channel. A temporary decision unit(200) calculates a temporary decision value for a data symbol received through each path using a channel estimation value for each path. A decision comparison unit(300) compares each of the temporary decision values calculated at the temporary decision unit(200) and outputs a demodulation reference of a data symbol having identical temporary decision values. The second channel estimation unit(400) demodulates each of the relevant data symbols according to the demodulation references provided from the decision comparison unit(300) and executes a secondary channel estimation using this demodulated data symbols and the pilot symbols.
Patent KR-20010078496-A (KR)
Inventor: KIM DONG HUN
IPC: C22C38/48
Filed: 1999-12-09
Abstract: PURPOSE: Provided is a stainless steel with superior thermal strength and oxidation resistance to which a specific amount of cesium is added in case critical application temperature is over 1000deg.C, and (Cr/Ni)eq ratio is controlled over 1.48 in alloy constituents. CONSTITUTION: The stainless steel comprises C 0.08wt% or less, Mn 2.0wt% or less, P 0.0045wt% or less, Si 1.0 to 2.5wt%, Cr 17 to 21wt%, Ni 8 to 12wt%, W 0.5 to 2.5wt%, N 0.2wt% or less, Nb 0.1 to 0.6wt%, Ti 0.045wt% or less, B 0.005wt% or less, a balance of Fe and other inevitable impurities. B improves hot workability of metal, and the solubility of B decreases as alloy ratio increases. Ce is optionally added 0.1wt% or less, and the (Cr/Ni)eq ratio is at least 1.48. If the (Cr/Ni)eq ratio is too low, P and S segregation are induced being accompanied with solidification heat.
Patent KR-20010055567-A (KR)
Inventor: CHOI GO BONG
IPC: H04L12/28
Filed: 1999-12-11
Abstract: PURPOSE: A method for automatically constructing a telephone voice database using an intelligent information supplying system is provided to automatically construct a large scale telephone voice database by using a telephone network and the intelligent information supplying system. Therefore, it is possible to reduce a voice data editing time. Also, it is possible to automatically extract a voice section to store the voice section as a voice file. CONSTITUTION: A subscriber A calls a subscriber B(S201). A telephone is connected to the subscribe B of a telephone voice database constructing device through a telephone office(S202). The device transmits an IAM(Initial Address Message) operation to an intelligent information system(S203), and constructs a communication path by connecting bearer channels of the subscriber A and the subscriber B(S204). The intelligent information supplying system delivers an ARI(Assist Request Instruction) operation to the device(S205). The device delivers a PRM(Prompt and Receive Message) operation to the intelligent information supplying system(S206), and delivers a corresponding voice file as a PA(Play Announcement) operation(S207). The intelligent information supplying system requests the telephone voice file for being recorded through a PRMp(Prompt and Receive Message Report) operation(S208). The device transmits the voice file. The intelligent information supplying system collects/records the voice file, and transmits the voice file as the PRMp operation(S209-S211).
Patent KR-20010055736-A (KR)
Inventor: HONG JI UNG
IPC: A61K9/107
Filed: 1999-12-13
Abstract: PURPOSE: A micro emulsion injection composition of propofol obtained by using Solutol 15¬TH as a non-ionic surfactant and an auxiliary solvent or auxiliary surfactant is provided, which is useful as an injection of general anesthesia having no side effects by microorganism contamination and lipid overload caused by bean oil used in conventional emulsions. CONSTITUTION: The micro emulsion injection composition of propofol for general anesthesia is obtained by adding 1 to 50% by weight of an auxiliary solvent or an auxiliary surfactant to 0.1 to 10.0% by weight of propofol as an emulsion and 0.1 to 20.0% by weight of polyethylene glycol 660 12-hydroxystearate as a non-ionic surfactant based on the total weight of the composition. The composition can be used with conventional antiseptic, stabilizer, buffer solution and tonicity adjustment agent.
Patent KR-20010057318-A (KR)
Inventor: NAM YEONG HYEON
IPC: G01N29/24
Filed: 1999-12-21
Abstract: PURPOSE: An apparatus and a method for detecting characteristic of a supersonic vertical probe are provided to accurately detect a defect and grasp characteristic of the defect by measuring wave form and frequency characteristic with using a supersonic signal changeable according to time passage of using the supersonic vertical probe. CONSTITUTION: An apparatus for detecting characteristic of a supersonic vertical probe includes a supersonic pulse transmitting-receiving part supplying an electric signal and amplifying the electric signal returned through the vertical probe; the supersonic vertical probe receiving the electric signal supplied form the supersonic transmitting-receiving part and converting returned supersonic wave after projecting supersonic wave to a standard test piece into the electric signal for transmitting the same to the supersonic transmitting-receiving part; an oscilloscope receiving the electric signal from the supersonic transmitting-receiving part for displaying the characteristic; a spectrum analyzer receiving the electric signal from the supersonic transmitting-receiving part for representing frequency component of a supersonic signal to time; and a computer converting the analog signal outputted from the oscilloscope and the spectrum analyzer into the digital signal for analyzing the characteristic of the supersonic vertical probe.
Patent KR-20010064208-A (KR)
Inventor: LIM HYEOK GYU
IPC: H04N5/91
Filed: 1999-12-24
Abstract: PURPOSE: A frame analyzer for video signal processing and an analyzing method thereof are provided to remove an afterimage and reduce hardware load by separating a composite video signal to even field image, odd field image and frame image and then outputting them. CONSTITUTION: A synchronization separation circuit(110) separates a composite video signal to a video signal and a synchronization signal, and generates a horizontal synchronization signal, vertical synchronization signal and a field division signal using the synchronization signal. An address/control signal generation logic(120) generates a storing location of the currently input video data and a control signal. An A/D(analog to digital) converter(130) quantizes the composite video signal and converts it to a digital video data. Memories(140,150,160) store the even field image, the odd field image and the frame image, respectively. A correlation processor(170) compares time difference of the images. An interface(180) outputs the image signal to an external controller.
Patent KR-20010064269-A (KR)
Inventor: HONG GI CHAE
IPC: G06F40/00
Filed: 1999-12-27
Abstract: PURPOSE: A system and method for creating a three dimensional clustering are provided to link a word to a document horizontally and to classify a word and a document based on a directory by grafting the hierarchy terms concept in a clustering method based on the existing similarity. CONSTITUTION: A word extracting device(101) extracts actual contents of an HTML document using an HTML DTD(Document type definition), and extracts an actual word out of filtered contents using an HTML filter and a dictionary(104), and creates an index file(107) by embodying a weight value by words. A cluster creating device(102) extracts a word having a value more than the critical weight value out of words of the corresponding document, and creates a word group(cluster) based on the extracted each word, and compares the word group(cluster) with the existing word group(cluster dictionary:105) based on the corresponding word, and creates new word group(cluster dictionary:105) based on the corresponding word. A 3-D cluster processor(103) checks whether a query language of a user exists in a classification dictionary(106). If a query language of a user does not exist in a classification dictionary, a document value is outputted using a cluster corresponded to the query language and the index file(107) in the cluster dictionary(105). If a query language of a user exists in a classification dictionary, the upper and lower linking word in the classification dictionary(106), a query language and a cluster with respect to the upper and lower linking word in the cluster dictionary(105) based on the upper and lower linking word are searched, and a document value is outputted using the cluster dictionary(105).
Patent KR-20010061202-A (KR)
Inventor: JUNG JAE YUN
IPC: B60K28/10
Filed: 1999-12-28
Abstract: PURPOSE: A control system for preventing the rapid start of a vehicle and wrong operation of an accelerator controls fuel injection, engine rpm(revolutions per minute) and fuel injecting time when rapid start is occurred or an accelerator pedal is maintained to be pushed without being trod. CONSTITUTION: Rapid start preventing action is implemented if engine rpm signal, throttle position sensor signal and brake switch signal are all inputted in an engine control device. At least one of the signal is not inputted, the rapid start preventing action is released. Thus, fuel injection, engine rpm(revolutions per minute) and fuel injecting time are controlled, thereby preventing the rapid start of a vehicle and the wrong operation of an accelerator pedal.
Patent KR-20010061487-A (KR)
Title: Method for manufacturing capacitor of semiconductor device
Inventor: SIM HYEON SUK
IPC: H01L21/28
Filed: 1999-12-28
Abstract: PURPOSE: A method for manufacturing a capacitor of a semiconductor device is provided to easily control a pre-cleaning process and to eliminate a problem caused by variation of a critical dimension in making the capacitor, by performing a rapid thermal annealing process to compensate for etching damage of a nitride layer. CONSTITUTION: A boron phosphorous silicate glass(BPSG) layer(22) and a nitride layer(23) are formed on a semiconductor substrate(21). The nitride layer and the BPSG layer are selectively removed to expose a predetermined portion of the surface of the semiconductor substrate and to form a contact hole. A conductive plug is formed in the contact hole. An isolating pattern insulation layer for a capacitor is formed on the entire surface of the semiconductor substrate including the conductive plug. The isolating pattern insulation layer is selectively eliminated to expose the conductive plug and a predetermined portion of the surface of the nitride surface adjacent to the conductive plug. A rapid thermal annealing process is performed regarding the entire surface of the semiconductor substrate to compensate for etching damage of the isolating pattern insulation layer while a nitride layer(27) is formed on the conductive plug. A pre-cleaning process is performed regarding the semiconductor substrate to form a conductive layer for a storage node.
Patent KR-20010061795-A (KR)
Title: Semiconductor package
Inventor: HONG SEONG HAK
IPC: H01L23/52
Filed: 1999-12-29
Abstract: PURPOSE: A semiconductor package is provided to prevent wire bonding badness and improve a thermal emission property, by packaging with a bond pad being arranged on a surface of a semiconductor chip. CONSTITUTION: A bond pad(11) is arranged at a center of the semiconductor chip(10). A substrate(30) having a metal pattern is adhered on a surface of the semiconductor chip. The metal pattern(31) is electrically connected with the bond pad through a metal wire(40). A resultant structure is sealed by a sealing agent(50) so that a bottom of the semiconductor chip and both sides of the substrate are exposed. An external connection terminal(60), which has a length enough to be exposed from a bottom of the semiconductor chip, is connected to the metal pattern provided to the exposed sides of the substrate.
Patent KR-20010064602-A (KR)
Inventor: KIM BYEONG TAE
IPC: H01L21/66
Filed: 1999-12-29
Abstract: PURPOSE: A detecting apparatus for flat zone is provided to reduce a cleaning time and enhance productivity of a semiconductor device by detecting a flat zone of a wafer in a rapid and reliable fashion after brushing. CONSTITUTION: A light radiating unit(120) is fixedly installed to a mount(110) over a wafer(150), and outputs an optical signal toward a flat zone(155) of the wafer to detect the flat zone. A light receiving unit(130) is arranged under the wafer(150) to receive the optical signal from the light radiating unit(120). An injector nozzle(180) injects gas to the flat zone(155) of the wafer(150) during a detection process of the flat zone(155) to remove moisture existing in the flat zone(155). A control unit(160) applies an operation signal to the light radiating unit(120) and the injector nozzle(180). A brush driving unit(199) rotates brushes(140,145) to brush the wafer surface. A rotating unit(190) rotates the wafer during brushing.
Patent KR-20010029528-A (KR)
IPC: A01N43/42
Filed: 1997-09-09
Abstract: 하기 화학식 I의 헤타로일 유도체 및 농업에 유용한 이들의 염이 개시되어 있다. 
     ＜화학식 I＞ 
     
       
     
     이 식에서 각 기는 다음과 같은 의미를 갖는다. 
     R 1 및 R 2 는 수소, 니트로, 할로겐, 시아노, 로다노, 히드록시, 메르캅토, 임의로 치환되고(거나) 관능화된 C 1 -C 6 알킬, C 1 -C 6 알콕시, C 1 -C 6 알킬티오, C 1 -C 6 알킬술피닐, C 1 -C 6 알킬술포닐, C 1 -C 6 알콕시술포닐, 또는 임의로 치환된 페닐, 페녹시, 페닐티오, 페닐술피닐 또는 페닐술포닐이고, 
     Z는 3개의 탄소 원자와 하나의 질소 원자를 갖는, 임의로 치환된, 4원, 불포화, 부분 또는 완전 포화된 쇄이고, 
     Q는 위치 4에서 연결되는, 하기 화학식 II의 임의로 치환된 히드록시피라졸이다. 
     ＜화학식 II＞ 
     
       
     
     또한 헤타로일 유도체의 제조 방법, 이를 함유하는 제제, 및 원치 않는 식물 억제를 위한 이들 유도체 및 이를 함유한 제제의 용도가 개시되어 있다.
Patent KR-20000049125-A (KR)
Inventor: INAGI TOSHIO
IPC: A61K47/32
Filed: 1997-10-06
Abstract: PURPOSE: Provided is a topical anesthetic for external use. In particular, a topical anesthetic for external use, which is conveniently usable and applicable to a broad skin surface, and which is excellent in percutaneous absorption and quick efficacy as well as excellent in stability. CONSTITUTION: A local anesthetic for external use is prepared by blending a) an active ingredient selected from lidocaine, prilocaine, and pharmaceutically acceptable salts thereof, b) a percutaneous absorption accelerator, c) ethanol and/or isopropyl alcohol, and d) water such that the blending ratio of ethanol and/or isopropyl alcohol to water is preferably 0.5 to 1.2 in weight, and pH is preferably adjusted to be 6.0 to 8.5. Thus the percutaneous absorption type local anesthetic for external use is provided, which is conveniently used when it is applied and peeled off, which is applicable to a broad skin surface, and which is excellent in percutaneous absorption and quick efficacy as well as excellent in stability.
Patent KR-20000070501-A (KR)
Title: 신규 중간체를 통한 반합성 스타틴의 제조 방법
IPC: A61P43/00
Filed: 1998-01-27
Abstract: 본 발명은 고수율로 또 다른 스타틴, 바람직하게는 자연 발생적인 스타틴(예, 로바스타틴)으로부터 반합성 스타틴을 제조하는 방법을 제공한다. 또한 이 방법으로 제조된 다수의 신규 중간체 화합물을 제공한다.
Patent KR-20000070562-A (KR)
Title: 노에 연료를 넣는 방법과 버너
IPC: F23C7/00
Filed: 1998-01-13
Abstract: 본 발명은 시멘트나 유사한 제품을 제조하는 회전노와 같은 노의 연소영역으로 고체나 액체 또는 기체연료를 넣도록 된 방법과 버너에 관한 것으로, 연료는 대체로 동심적인 덕트(1,6)를 통해 유도되고, 제 1공기는 연료덕트 주위에 배치된 2개의 유사한 동심적인 환형상의 덕트(8,9)를 통해 유도되는데, 이들 중 하나의 공기덕트(9)내의 공기는 축방향으로 흐르는 공기로 이루어지는 한편, 제 2공기덕트(8 )내의 공기는 버너의 중심축에 대해 회전하도록 된 공기로 이루어지며, 제 1공기의 일부는 독립적으로 제어되는 바, 상기 버너의 독특한 특징은 상기 제 1공기흐름이 환형상의 노즐(14)을 매개로 하여 노에 분사되기 전에 요구되는 비교적 높은 속도까지 계속 가속되는 제 1공기흐름으로 수집덕트(15)의 비교적 낮은 속도에서 혼합되고, 따라서 최소의 압력손실과 함께 작동상 신뢰할 수 있는 방식으로 연료와 공기의 효과적인 혼합을 성취하며, 화염형상이 최적의 요구에 적합하게 된다.
Patent KR-20000076377-A (KR)
Title: 광학장치
IPC: G11B7/1381
Filed: 1998-09-10
Abstract: 직선편광(10)의 입사광을 집광하는 집광 광학계(104)와, 그 집광 광학계 (104)의 초점면의 근방에 배설되는 광반사부재(105)에 의해서 반사되는 반사광을 입사광으로부터 분리하는 광분리소자(701)와, 그것에 의하여 분리된 분리광속(12)을 검출하는 광검출소자(704)를 구비한 광학장치이며, 직선편광(10)의 입사광로 중에, 해당 직선편광의 집광 광학계(104)에 의해 이용되는 유효광속중(11)의 일부의 영역의 편광축을 거의 90도 선광가능하며, 전기신호에 의하여 그 선광성이 제어되는 선광광학소자(l03)를 설치한다. 또한, 분리광속(12)의 광로중에 직선편광검파소자(703)를 설치한다. 이에 따라 광량을 감쇠시키는 일없이 초해상을 얻을 수 있고, 또한 상기 반사광의 분리광속으로부터 싸이드로브를 간단하게 제거하고 검출신호의 SN을 향상할 수 있다. 또한 집광 광학계의 개구를 전환한 상태에서의 검출광을 얻을 수도 있다.
Patent KR-20010012251-A (KR)
IPC: H01M10/06
Filed: 1998-05-04
Abstract: A sealed lead-acid cell and positive plate for a sealed lead-acid cell are provided. The positive plate comprises a grid supporting structure having a layer of active material pasted thereto, the grid supporting structure comprising a lead-based alloy consisting essentially of lead, from about 0.02% to about 0.05% calcium, from about 1.5% to about 3.0% tin, and from about 0.01% to about 0.05% silver. A positive plate in accordance with the invention has excellent mechanical properties, and is satisfactory for use in a lead-acid cell.
Patent KR-20010012979-A (KR)
IPC: H05K1/02
Filed: 1999-04-06
Abstract: 압착 대상물에 압착에 의해 접속되는 압착 접속 기판으로서, 상대측 단자에 도전 접속되는 표면측 단자와, 그 이면측에 형성된 이면측 단자를 가지고 있으며, 이면측 단자는 표면측 단자에 대해서 경사지게 배치된다. 압착 처리시의 가압시에는 기판측 단자에 균일한 압력이 가해지기 때문에, 접속 신뢰성이 높은 압착 접속 구조를 안정되게 얻을 수 있다.
Patent KR-20010013009-A (KR)
IPC: A61K31/496
Filed: 1998-06-22
Abstract: 본 발명은 혈관형성 저해 작용을 갖는 하기 화학식 I의 화합물, 그의 N-옥사이드 형태, 약제학적으로 허용되는 산 부가 염 및 입체화학적 이성체 형태; 그의 제조방법, 그를 포함하는 조성물 및 그의 의약으로서의 용도에 관한 것이다: 
     [화학식 I] 
     
       
     
     상기식에서, 
     X 는 CH 또는 N 이고; 
     R 1 은 수소, C 1-6 알킬, C 1-6 알킬옥시, C 1-6 알킬티오, 아미노, 모노- 또는 디(C 1-6 알킬)아미노, Ar 1 , Ar 1 NH-, C 3-6 사이클로알킬, 하이드록시메틸 또는 벤질옥시메틸이며; 
     R 2 는 수소, C 1-6 알킬, 아미노, 아미노카보닐, 모노- 또는 디(C 1-6 알킬)아미노, C 1-6 알킬옥시카보닐, C 1-6 알킬카보닐아미노, 하이드록시 또는 C 1-6 알킬옥시이고; 
     R 3 , R 4 및 R 5 는 각각 독립적으로 수소, 할로, C 1-6 알킬, C 1-6 알킬옥시, 트리플루오로메틸, 니트로, 아미노, 시아노, 아지도, C 1-6 알킬옥시C 1-6 알킬, C 1-6 알킬티오, C 1-6 알킬옥시카보닐 및 Het 1 로 구성된 군으로부터 선택되며; 
       은 Ar 2 , Ar 2 CH 2 - 또는 Het 2 이고; 
     Ar 1 및 Ar 2 는 임의로 치환된 페닐이며 
     Het 1 및 Het 2 는 임의로 치환된 모노사이클릭 헤테로사이클이다.
Patent KR-20010013195-A (KR)
Inventor: NAESMAN KARL ANDERS
IPC: H04J13/00
Filed: 1998-05-29
Abstract: The present invention relates to a method and an arrangement for synchronising communication of framed data via asynchronous base stations (BS1, BS2) in a cellular communications system, e.g. a CDMA system. The synchronisation method is performed continuously by sending out certain system frame counter states from a central node in the system to all its connected base stations (BS1, BS2). Each base station (BS1, BS2) comprises a local frame counter (LFCBS1; LFCBS2), which generates local frame counter states (t1(1)- t1(4); t2(1)-t2(4)) correlated to the the system frame counter states. Transmission of information via the base stations (BS1, BS2) is synchronised by assigning each data frame (DF(1)-DF(4)) a particular frame number, which is given by the local frame counter states (t1(1)- t1(4); t2(1)-t2(4)), so that data frames (DF(1)-DF(4)) having identical numbers contain copies of a certain data packet. Correct frame numbers are derived from common downlink channel offset measurements (CCO1; CCO2) carried out in the base stations (BS1, BS2), and timing advance values (TA2) and downlink channel offsets (DCO1; DCO2) calculated in the central node.