baber/WOPTO huggingface dataset:
Patent KR-19980064858-A (KR)
Title: 일방향 자전거 구동장치
IPC: B62M1/00
Filed: 1998-03-23
Abstract: 본  발명은  패달의  역회전  구동시에도  자전거가  전진구동되는  일방향  자전거  구동장치에  관한  것이다. 
     본  발명의  일방향  자전거  구동장치는,  패달축  또는  허브축에  장착할  수  있므며,  체인과  치합되어  패달의  구동력을  전달받아  자전거  후륜을  회전시키도록  회전자유로  설치된  종동  스프로킷휠과,  상기  후륜을  회전지지하는  허브축과,  상기  후륜에  상기  종동  스프로킷휠의  회전력을  전달하는  후륜기어와,  상기  후륜기어에  항상  치합되도록  축고정된  축고정  중계기어와,  상기  종동  스프로킷휠의  정회전(전진방향)시  기어축이  이동함으로써  상기  축고정  중계기어에  치합되고,  상기  종동  스프로킷휠의  역회전(후진방향)시에도  상기  후륜기어의  정회전을  유도하도록  기어축이  이동함으로써  상기  후륜기어에  직접  치합되는  축이동  중계기어  및  기어축이동홈이  형성된  편심형  고정브라켓을  구비하여  이루어지는  것을  특징으로  한다. 
     따라서,  운전이  편리하고,  후륜의  역회전을  자유롭게  하는  효과를  갖는다.
Patent KR-19980080864-A (KR)
Title: 차량의 자세 제어 장치
IPC: B60T8/58
Filed: 1998-03-30
Abstract: 본 발명에 따르면, 스핀을 회피하면서, 자세 제어와 운전자의 감속요구를 동시에 높은 차원에서 만족시키도록 한다. 
     차량의 실제 자세 상태가, 소정의 목표 자세 상태, 예를 들면 목표 요레이트 혹은 목표 횡활주각으로 되도록, 4개의 차륜 중 일부 차륜에 대한 브레이크가 작동된다.  자세 제어가 행해지고 있을 때 브레이크 페달을 밟는 조작이 이루어진 경우, 답력압(P)에 따른 x의 비율로 각 차륜에 제동력이 배분되어 차량의 감속이 충분히 이루어지고, 그 만큼 자세 제어의 제어 정도가 저하된다.  스핀이 검출되었을 때, 즉 차량의 횡활주각이 소정치보다 클 때에는, 상기 x를 작게 함으로써 제동 제어에 규제가 가해지고, 횡활주각이 소정치 이하로 작을 때에는 제동 제어의 규제가 가해지지 않는다.
Patent KR-19980081027-A (KR)
Title: 피드 포워드 증폭기
IPC: H03F1/32
Filed: 1998-04-02
Abstract: 본 발명은 온도 변화에 대해서 충분한 보상을 제공하는 전치 왜곡 회로를 구비한 피드 포워드 증폭기를 제공한다.  주증폭기(6)의 왜곡을 개선하는데 전치 왜곡 회로(3)를 이용할 때는, 전치 왜곡 회로(3), 가변 감쇠기(4), 가변 위상 시프터(5) 및 주증폭기(6) 순으로 배치되며, 제어 회로(19)는 검출된 왜곡 성분 내의 반송파 성분, 즉 입력 신호가 최소가 되게 감소하도록 가변 감쇠기(4)와 가변 위상 시프터(5)를 제어한다.  이런 방식으로, 온도 변화로 인해 주증폭기(6)의 이득이 변하는 경우에, 주증폭기(6) 앞에 설치된 가변 감쇠기(4)와 가변 위상 시프터(5)가 그 이득 변화를 보상한다.  그러나, 전치 왜곡 회로(3)의 입력 레벨은 영향을 받지 않으므로, 전치 왜곡 회로(3)의 출력 레벨과 주증폭기(6)의 출력 레벨 간의 관계는 온도 변화 전과 비교해 변하지 않고 그대로 유지되어 동일한 보상 효과를 발휘한다.
Patent KR-19980033550-A (KR)
Title: 아크릴판의 대리석 무늬 성형방법
Filed: 1998-04-24
Abstract: 본 발명은  아크릴판의 대리석 무늬 성형방법에 관한 것으로, 아크릴판 제조형틀의 용적의 90% 정도로 투명한 유동성의 메칠메탈 아크릴(MMA)을 주입하고  대리석 무늬 색소가 혼합된 불투명한 유동성의 MMA를 제조형틀의 나머지 공간에 주입하여 채운 다음 제조형틀에 덮개판을 덮어 밀착되게 한후 클립으로 고정한 다음 제조형틀을 수조에 세워 색소가 함유된  MMA와 투명성의 MMA가 혼합 유동으로 대리석 무늬를 성형하는 것을 특징으로 하고 그 후에는 공지한 방법인 40℃의 수온으로 6시간 반응시킨 다음 60-70℃로 가열 경화시키어 대리석 무늬가 성형된 아크릴판을 제조하는 것이다.
Patent KR-19990086826-A (KR)
Title: 안티록 브레이크 시스템의 유압밸브
IPC: B60T8/32
Filed: 1998-05-30
Abstract: 본 발명은 안티록 브레이크 시스템의 유압밸브에 관한 것으로, 본 발명의 유압밸브는 전자기를 발생시키도록 내부에 코일이 권선된 솔레노이드, 솔레노이드의 외형을 이루는 원통형상의 요크, 요크 내측에 설치되며 내부에 솔레노이드 코일에 의하여 발생한 전자기력에 의하여 작동하는 플런저, 플런저를 작동시키는 코어, 플런저와 코어가 내부에 설치된 슬리브를 갖추고, 슬리브는 요크에 형성된 삽입홀의 입구단과 접촉하는 접촉부가 소정각도로 경사지게 형성되어 요크가 슬리브의 접촉부에 억지끼움 되도록 된 것이다. 
     이러한 본 발명의 안티록 브레이크 시스템에 있어서의 유압밸브는 슬리브와 코어를 경사지게 형성하여 솔레노이드의 요크가 슬리브에 강제 압입되도록 함으로써 별도의 탄성부재를 사용하지 않고도 솔레노이드를 안정적으로 지지함으로써  외부의 진동과 충격으로부터 밸브의 설치상태를 안정적으로 유지할 수 있는 효과가 있다.
Patent KR-20000000751-A (KR)
Title: Alcohol drink composition containing bioflavonoids derived from citrus peel for protecting liver function
Inventor: BOK SEONG HAE
IPC: C12G3/04
Filed: 1998-06-03
Abstract: PURPOSE: An alcoholic beverage composition is provided to protect liver function by adding bioflavonoids, which are originally derived from citrus peel. CONSTITUTION: The alcoholic beverage composition contains 10-1000 mg of bioflavonoids per 100 ml of the alcoholic beverage wherein, the bioflavonoid is such as naringin, naringenin, hesperidin, hesperetin or mixture thereof and decreases the concentrations of serum GOT (glutamate-oxaloacetate transaminase), GPT (glutamate-pyruvate transaminase) and gamma-GTP(gamma-glutamyl transpeptidase. Bioflavonoids can be extracted from citrus or synthesized by a known method.
Patent KR-20000001235-A (KR)
Title: Electric mobile vehicle moving, generated using vane with air occurring when car is running
Inventor: JUNG JUN TAE
IPC: B60L8/00
Filed: 1998-06-10
Abstract: PURPOSE: An electric car is provided to preserve the energy resources which is on the verge of being exhausted worldwide; to have clean air unpolluted by car waste gas; for the clean earth environment in the future; to improve the national economy by saving a great deal of money. CONSTITUTION: An electric car comprises the method of: moving a car by generating an electric power using a vane with air originated when a car is moving.
Patent KR-20000009013-A (KR)
Title: Wood using low boiling point solvent and method for liquidizing wood material
Inventor: KONG YUNG TO
IPC: B27K5/00
Filed: 1998-07-20
Abstract: PURPOSE: A method for manufacturing a liquidized wood by using a low cost is provided to treat the wood evenly and to recollect easily a solvent used for liquidizing the wood. CONSTITUTION: A method for manufacturing a liquidized wood is composed of: using a dioxane and a mixed solvent with water for manufacturing the liquidized wood from a vegetable property organic material such as wood without passing through a pretreating process while an existence of an acid catalysis; and using a vacuum reducing concentrator for recollecting a liquidized wood powder by reduce concentrating. Herein, the acid catalysis is a sulfuric acid and added less than 5 wt.% while the mixed ratio of the dioxane and the water being used as the solvent is 2:1 or 5:1.
Patent KR-19990014163-A (KR)
IPC: C08L67/04
Filed: 1998-07-24
Abstract: Products intended for use as hand mouldable materials should meet the objectives of not causing pain to the user when held in the hand, and retaining malleability for a sufficient but not excessive length of time. The invention hand-mouldable compositions comprise selected copolymers of lactones and lactides which manifest a melt temperature Tm in the range of from 48 to 58 DEG C and a crystallisation temperature Tc in the range of from 16 to 30 DEG C. They are preferably produced from  epsilon caprolactone and L-lactide, most desirably in a weight ratio of from 94:6 to 91:9, and especially at a reaction temperature in the range of from 150 to 190 DEG C. They are often coloured and can be employed in kits.
Patent KR-20000009480-A (KR)
Title: Inspection apparatus of carrier for semiconductor wafer transfer
Inventor: HONG SUCK JONG
IPC: H01L21/66
Filed: 1998-07-24
Abstract: PURPOSE: An inspection apparatus(14) improves the productivity of a semiconductor device fabrication by minimizing the generation of inferior products by judging whether the interval of carrier slots(12) is maintained precisely. CONSTITUTION: The apparatus comprises: an insertion part(16) which can be inserted between plural slots to check whether the interval between slots which are comprised in a carrier(10) capable of loading many wafers; and a supporting part(18) which can be in a body with the insertion part. The insertion part improves the accuracy during the inspection. The insertion part and the supporting part are made of a stainless steel.
Patent KR-20000010382-A (KR)
Title: Complex material having reinforced performance manufacturing method and manufacturing device thereof
Inventor: JUN JUNG NAM
IPC: B29B15/14
Filed: 1998-07-31
Abstract: PURPOSE: A device is provided to manufacture a complex material that has a reinforced performance by layering the reinforced fiber in the same direction as a sheet. CONSTITUTION: A complex mat manufacturing device(200) comprises: transferring unit(210) transferring a heat-plastic fiber resolved; a pair of feed rollers(220) regularly supporting and catching the heat-plastic fiber that is transferred by the transferring unit; a first fiber dispersion cylinder(230) closely installed in the first feed roller and dispersing fiber that is provided from the first feed roller in the revolving state by high speed; and an inhaler(290) inducing fiber falling.
Patent KR-20000012839-A (KR)
Title: Method and device for spraying agricultural chemical by remote controlling
Inventor: YOUN KYUNG KUK
IPC: A01M7/00
Filed: 1998-08-01
Abstract: PURPOSE: A method and a device for spraying an agricultural chemical are provided to make an operation convenient and to improve a stability from an agricultural chemical poisoning by enabling an operator to spray the agricultural chemical to a rice field from a remote distance. CONSTITUTION: An agricultural chemical sprayer(20) is formed by:a supporting unit(11) being fixed on the ground of a rice field; an establishing rail(10) containing plural poles(12) with a certain height being erectly installed and a rail unit(13) being installed in the upper unit of the pole; a moving instrument(21) for moving on the establishing rail; a signal receiving unit(22) for receiving a remote controlling signal; an agricultural chemical storing unit(23) for storing the agricultural chemical; and a driving unit(24) for spraying the stored agricultural chemical. Therefore, the agricultural chemical being stored in the agricultural chemical sprayer is sprayed by the remote controlling signal of an operator who is operating from a remote distance.
Patent KR-20000013209-A (KR)
Title: Automatic usable time inspection device of chemical for manufacturing semiconductor
Inventor: MIN BYUNG HO
IPC: H01L21/02
Filed: 1998-08-05
Abstract: PURPOSE: The time when a chemical is taken out is displayed accurately and identified visibly even at a long distance for the convenience of the user of the chemical. CONSTITUTION: The movement of a plate (14) throws switch (S1). A control device (24) to which a switching signal is transmitted decides if the time corresponds to the fixed mode by receiving clock signals to count time continuously from a clock(28), generates a signal corresponding to the clock signal and indicates the signal on the display panel(16) through a decoder(32). Then the time is displayed and a lamp corresponding to the befitting mode radiates on the selection device(30).
Patent KR-20000014007-A (KR)
Title: Disk type dust charging device with high efficiency
Inventor: SON JAE IK
IPC: B01D51/00
Filed: 1998-08-17
Abstract: PURPOSE: A structure of a dust charging device is provided to improve a collecting efficiency of a filtering collecting device by consuming a small amount of energy and to minimize an installing space. CONSTITUTION: A disk typed dust charging device comprises: a corona discharging electrode and a pipe shaped grounded electrode being formed by combining plural stainless disks; a supporting bar for supporting the discharging electrode and for insulating from the grounded electrode; and a corn being located in the inlet of the dust charging device for reducing a disturbance of the flow. Herein, plural discharging electrodes are arranged toward the flowing direction of a fluid for the influent dust to pass through an electric field for tens of time and to be charged repeatedly. Therefore, the discharging efficiency of the fine dust particle is increased even under a rapidly flowing condition.
Patent KR-20000014759-A (KR)
Title: Data recording method considering fault characteristic
Inventor: KIM BYONG JIN
IPC: G11B20/12
Filed: 1998-08-21
Abstract: PURPOSE: A data recording method considering fault characteristic is provided to improve a data reliability by successively recording data from a stable region after considering a real characteristic of a recording region. CONSTITUTION: Voluntary information is previously recorded in a physical unit sector before recording a real data and a fault region distribution is identified by a unit region(S10). The identified fault region information is stored in a memory and a recording priority sequency is determined by the unit region(S11). Data is successively recorded from the center of a recording medium having a small ratio of the fault region according to the determined recording priority sequency. In the case of reproducing an optical recording medium, an error ratio of data is detected and stored when reproducing data by each unit region(S13, S15). The recording priority sequency is read when a recording command of a new data is inputted and then a wanted data is successively recorded according the read recording priority sequency(S19, S20).
Patent KR-20000015593-A (KR)
Title: Curing method of liquid phase sealing material for semiconductor package
Inventor: YOON JOO-HOON
IPC: H01L21/52
Filed: 1998-08-31
Abstract: PURPOSE: A curing method of liquid phase sealing material for semiconductor package is provide to reduce the number of manufacturing process and enhance productivity by combining two processes of the void removing process and the curing process into one process. CONSTITUTION: The curing method of liquid phase sealing material for semiconductor package comprises: a step coating the wire bonding portion of the material with liquid sealing material and inserting it into a vacuum chamber; a step removing the voids within said sealing material by using the vacuum state of said vacuum chamber; and a step heating said sealing material to cure it after releasing the vacuum state within said vacuum chamber.
Patent KR-20000015594-A (KR)
Title: Marking method for fabricating semiconductor package
Inventor: YOON JOO-HOON
IPC: H01L23/544
Filed: 1998-08-31
Abstract: PURPOSE: A marking method for fabricating semiconductor package is provide to reduce the number of manufacturing process and enhance productivity. CONSTITUTION: The marking method for fabricating semiconductor package comprises: a step presenting a wafer; a step presenting a circuit tape; a step bonding said wafer and circuit tape; a wire bonding step connecting said wafer and circuit tape by a wire; an encapsulation step coating said wire bonding portion with sealing material and curing it; a solder ball bumping step bumping a solder ball; a step cutting plural semiconductor chips along a street line on said wafer to form a semiconductor package having the same size as that of the chip; and a step picking up said cut semiconductor package, dividing good package and rework package through inspection, marking said packages with rotation state by 180 degree, and separating the good and rework packages.
Patent KR-20000019055-A (KR)
Title: Screen holder of accumulator for compressor
Inventor: KIM WAN SU
IPC: F04C18/00
Filed: 1998-09-08
Abstract: PURPOSE: A screen holder of an accumulator is provided to reduce the friction loss on the side face of a projection unit by largely forming the front end of the projection unit and at the same time forming narrowly as going further to the lower part. CONSTITUTION: An accumulator(101) for a compressor is installed with the steps of: making up the outer appearance with an upper cap(103), a lower cap(104), and a body(105) for deciding the capacity of the accumulator; installing a filter(106) for preventing the inflow of a foreign matter including cooling gas flowed in the main body; installing a screen holder forming with a projection unit(111) for regulating the flow direction of the cooling gas on the back of the filter(106) so the cooling gas as not to directly flow in the compressor; installing a refrigerant inflow hole(107a) out of the concentric circle of an L-tube(102) to prevent a liquid refrigerant flowed in from the upper pipe(109) from directly flowing in the L-tube. And a tube holder(108) is installed in the body from the screen holder for preventing the noise and the vibration from being transferred to the inside of the cylinder.
Patent KR-20000019348-A (KR)
Title: Mandrel for winding electrode roll of cylindrical battery and method of manufacturing electrode roll using mandrel
Inventor: JEONG JU SIK
IPC: H01M4/08
Filed: 1998-09-10
Abstract: PURPOSE: A mandrel for winding an electrode roll is provided to compensate a thickness deviation due to a positive electrode lead and a protecting tape so as to reduce the height deviation of the electrode roll. CONSTITUTION: A mandrel, which winds a separator(6) along with electrodes divided into a positive electrode(2) and a negative electrode(4) so as to form an electrode roll, has a groove(22) in which a protecting tape(16) and a lead(2a) which are attached to the electrode disposed at the inside. The two electrode is insulated to each other by the separator. The lead and protecting tape are attached to a base plate of the electrode which is disposed at the inside. Thereby, since the mandrel is formed with a groove for the lead and protecting tape, the thickness deviation is effectively reduced.
Patent KR-19990030047-A (KR)
Title: 산화 응력이 감소된 소자를 사용하는 컴퓨터시스템
IPC: H01L21/8242
Filed: 1998-09-23
Abstract: 본 발명은 기판 표면 하부에 형성된 트렌치 커패시터를 포함하는 랜덤 액세스 메모리 셀에 관한 것이다.  얕은 트렌치 절연물이 메모리 셀을 메모리 어레이내의 다른 메모리 셀들로부터 절연시키기 위해 제공된다.  얕은 트렌치 절연물은 산화 응력을 감소시키기 위하여 기판 상부로 상승된 최상부 표면을 갖는다.
Patent KR-20000021053-A (KR)
Title: Method of forming metal wiring of semiconductor device
Inventor: LEE JAE BONG
IPC: H01L21/28
Filed: 1998-09-25
Abstract: PURPOSE: A method of forming a metal wiring of a semiconductor device is provided to prevent a by-product from being generated when a contact hole is formed, and to prevent the corrosion of an aluminum film when the aluminum film is exposed in the atmosphere. CONSTITUTION: A barrier layer(102), an aluminum layer(104), and a capping layer(106) are in order formed in a first inter layer insulated film(100). The barrier layer is made of one selected from a Ti film or a Ti/TiN, and the capping layer is made of TiN film. A tungsten layer(108) is formed on the capping layer as a meal film. The tungsten film has a thin thickness relative to that of the aluminum film. A photoresist film pattern(110) is formed on the tungsten film. The tungsten film is etched by using the pattern as a mask.
Patent KR-19990036789-A (KR)
Title: 반도체 집적 회로 장치
IPC: G11C11/401
Filed: 1998-10-01
Abstract: 칩 점유면적을 증가시키지 않고 고속이고 또한 안정하게 동작하는 멀티 뱅크 메모리를 포함하는 반도체 집적 회로 장치를 제공한다. 
     직사각형 형상의 DRAM 매크로(3)의 4분할 영역에 서브 뱅크(4a∼4d)를 배치하고, 이들 서브 뱅크 사이의 소정 영역(10)에 뱅크 제어 회로(7a, 7b)를 배치하고 또한 내부 리드/라이트 데이터 버스(5a, 5b)를 이 뱅크 제어 회로가 배치되는 영역과 다른 영역에 배치한다.  뱅크 제어 회로와 내부 리드/라이트 데이터 버스에 교차부가 존재하지 않고, 뱅크 제어 회로를 효율적으로 배치하여 그의 레이아웃 면적을 저감한다.
Patent KR-19990037531-A (KR)
Title: 압전 변압기의 구동 방법 및 구동 장치
IPC: H01L41/04
Filed: 1998-10-30
Abstract: 압전 변압기의 승압비를 제어하는 방법과 압전 변압기의 구동 파형을 제어하는 방법의 2 가지 방법을 조합한 방법이 이용되었다.     제어 방법을 스위칭시키는 임계치는,  스위칭시의 구동 주파수의 불안정을 피하거나 또는 고유 주파수에서 구동하는 것을 피하기 위해,  히스테리시스 특성에 의해 설정된다.     전원 전압이 일정한 경우에,  구동 주파수가 문제점을 유발하는 고유 주파수에 도달할 때 까지,  검출용 저항 (16) 의 저항값를 가변시켜서 구동 주파수를 증가시킨다.     구동 주파수가 고유 주파수에 도달하게 되면,  구동 회로에 대한 전원 공급이 감소되어 구동 파형의 진폭을 감소시킴으로써 출력 전압의 변화없이 구동 주파수를 감소시키게 된다.     진폭이 작은 이러한 상태에서,  구동 주파수가 고유 주파수에 도달하도록 증가시킴으로써 최소 출력 전압이 얻어진다.     이러한 방법 및 장치는 압전 변압기의 넓은 출력 전압 범위와 신뢰성 있는 출력 특성을 제공한다.
Patent KR-20000028434-A (KR)
Title: Protecting circuit for overscanning
Inventor: KIM YUN HOI
IPC: H04N5/44
Filed: 1998-10-31
Abstract: PURPOSE: A protection circuit for an over scan of a monitor is provided to protect the over scan by adding compensation voltage to an EW signal, and by limiting maximum horizontal size. CONSTITUTION: A circuit for protecting an over scan of a monitor comprises an EW signal generator(1), a PWM(Pulse Width Modulation) controller(2), a DC/DC(Direct Current) convertor(3), a horizontal deflection circuit(4), detection resistance of horizontal deflection current(R11), a compensation voltage generator(10), and a compensation voltage amplifier(20). The EW signal generator reduces and outputs a direct level of the EW signal to increase horizontal size. The PWM controller increases and outputs a duty rate of the PWM controlling signal through the EW signal reducing the direct level. The DC/DC convertor increases and outputs size of B+ voltage through the PWM signal increasing the duty rate. The horizontal deflection circuit increases horizontal size by size of the horizontal deflection current through the increased B+ voltage. In a monitor having the horizontal deflection current, the detection resistance of the horizontal deflection current detects the horizontal deflection current. The compensation voltage generator outputs direct compensation voltage, when the size of the detected horizontal deflection current is over a regular value.
Patent KR-20000031797-A (KR)
Title: Fault message report system via wireless network
Inventor: LEE EUI CHEON
IPC: H04B17/00
Filed: 1998-11-10
Abstract: PURPOSE: A fault message report system via wireless network is provided to give information about a fault generated in a private exchange system via wireless network, thereby enabling manager for maintenance and repair when not capable of performing a field service to rapidly take follow measures regarding the generated fault. CONSTITUTION: A fault editorial part(340) converts the fault message received from a private exchange system to letter data of a predetermined range. A wireless network calling part(350) calls a preregistered arbitrary call number to transmit the converted letter data in the fault editorial part(340) via wireless network. A fault letter transmitting part(360) transmits the converted letter data to the calling number called by the wireless calling part.
Patent KR-20000032336-A (KR)
Title: Connection point operating apparatus and connection apparatus of 3-position switch
Inventor: LEE SUCK WON
IPC: H01H31/00
Filed: 1998-11-13
Abstract: PURPOSE: A connection point apparatus and a connection apparatus of a 3-position switch are provided which can operate more than two switches in 3-position(open-close-ground) states using one operation apparatus. CONSTITUTION: A connection point operation apparatus transfers an elastic force of a spring extended by a cam driving to a power axis(1), and a connection apparatus transfers a rotation force to a driving part of an arc extinguish part, being operated by the location change of the power axis of the connection point operation apparatus in series. With one operation apparatus and connection apparatus, the 3-position switch can operate more than two switches, and in case of converting to a motor-operated operation apparatus, it can be operated using one motor. Therefore, the apparatus can minimize the fabrication cost and the size of the product and can improve the reliability.
Patent KR-19990014648-A (KR)
Title: 건축물 내외장재용 불연성 샌드위치 패널
Filed: 1998-11-30
Abstract: 진주암을 미세한 입도로 (약 10～20 mech ) 분쇠하여 가열 팽창시킨 기밀성 소기포가 생긴 매우 가벼운 백색모래(발포현상)에 무기질인 접착제를 잘혼합하여 강판에 수직결로 요철홈으로 성형된 강판에 두께가 균일하게 접착시켜 휨 강도를 보강 화재방지에도 적합한 불연재인 단열성 샌드위치 패널에 관한 것으로 경고하고 경량한 건축물 내외장재용 샌드위치 패널로 된 것을 특징으로 한다.
Patent KR-20000040455-A (KR)
Title: Channel estimator in mobile communication system
Inventor: KIM SEUNG HO
IPC: H04B7/26
Filed: 1998-12-18
Abstract: PURPOSE: A channel estimator in the mobile communication system is provided to reduce errors by estimating channels with the information after error correction demodulation. CONSTITUTION: A channel estimator(101) estimates channels according to a pilot symbols inserted signal and a received signal. A remove pilot symbols part(106) removes pilot symbols from a real number detected at a second calculation part(105). A channel deinterleaver(107) executes channel deinterleaving for the signal of the pilot symbols removed at the remove pilot symbols(106). An error-control decoder(108) corrects errors after decoding the signal of the channel deinterleaver(107). A channel interleaver(109) executes channel deinterleaving for the signal of the error-control decoder(108). An insert pilot symbols part(110) inserts pilot symbols into the signal of the channel interleaver(109).