baber/WOPTO huggingface dataset:
Patent KR-20000000549-A (KR)
Title: Getter structure of a gas discharge display device
Inventor: PARK HEONG EON
IPC: H01J11/36
Filed: 1998-06-01
Abstract: PURPOSE: A getter structure of a gas discharge display device is provided to improve a lifetime of a display device. CONSTITUTION: The getter structure of a gas discharge display device comprises: tow substrates(101, 102), with a sealing material interposed therebetween; a gaiter(104) disposed between a display unit(a) and a sealing join portion(103) in the substrate; and a shield panel(106) for preventing a spattering of the getter(104) from the display unit(a).
Patent KR-19990006865-A (KR)
Title: 시트 부착 차량 창 유리
IPC: B32B17/10
Filed: 1998-06-11
Abstract: 투명이나 불투명 시트는 착색, 광선 차단, 장식 등을 위한 차량의 사이드 도어 창유리의 내면에 부착된다. 시트 부착 창유리에서, 상기 시트는 백 홀더와 정면 홀더를 거쳐 창유리의 내면에 직접적이지만 분리가능하게 부착되어 있다.
Patent KR-19990007346-A (KR)
Title: 적외선 원격제어회로
IPC: H04B10/00
Filed: 1998-06-25
Abstract: 적외선 원격제어회로는 적외선변조된 파를 수신하는 적외선감지소자; 수신된 신호를 증폭하기 위한 증폭회로; 증폭회로에 의해 증폭된 수신된 신호로부터 특정 주파수를 추출하는 대역통과필터; 대역통과필터로부터의 출력신호를 검출하기 위한 파검출회로; 및 파검출회로로부터의 출력신호의 파형을 정형하기 위한 파형정형회로를 포함하며, 여기서, 다른 파검출회로가 제 1파검출회로 및 파형정형회로 사이에 제 2파검출회로로서 제공되고, 여기서 동일한 전류미러회로로부터의 출력이 대역통과필터 및 제 2파검출회로 둘 다를 위한 제어신호로서 사용된다.
Patent KR-20000003207-A (KR)
Title: Dividing structure forming method of semiconductor device
Inventor: YUN HOON SANG
IPC: H01L21/76
Filed: 1998-06-26
Abstract: PURPOSE: A dividing structure method of a semiconductor is provided to electrically divide each device in a small area by having a back bias sphere for feeding a back bias onto the other side face of a gate. CONSTITUTION: The dividing structure method of a semiconductor is formed with the steps: defining an active sphere for forming a semiconductor device by forming a field oxide film(2) on the upper part of a substrate(1):forming the gate(3) of a moss transistor and a gate(6) for the back bias by evaporating gradually the oxide film and a multi-crystal silicon in the upper part of the defined active sphere and patterning through a photo etching process; forming a source and a drain(4) on the lower part of the side substrate.
Patent KR-20000004741-A (KR)
Title: Pcb having module reducing input capacitance
Inventor: HAN JONG PYO
IPC: H05K1/16
Filed: 1998-06-30
Abstract: PURPOSE: A PCB(Printed Circuit Board) having a module reducing input capacitance is provided to reduce input capacitance of module and to prevent reduction of operating speed. CONSTITUTION: A PCB having a module reducing input capacitance is comprise of; duplex data transmitting means to transmit data to a component or external of the module by replying to control signal. The PCB is formed in bus line between I/O(input/output) terminal and tap of module; and control signal generating means to control the duplex data transmitting means.
Patent KR-19980065146-A (KR)
Title: 스트렙토마이세스속 균쥬가 생산하는 신규 항균-항녹조류 항생물질인 십육-메칠옥사졸로마이신의 분리 및 제조법
Filed: 1998-06-30
Abstract: 본 발명은 방선균류의 일종인 스트렙토마이세스( Streptomyces sp.) 속 균주가 생산하는 신규 항균-항녹조류 항생물질의 분리 및 제조 방법에 관한 것이다.    더욱 상세하게는 그람 양성균 및 녹조류에 대한 생육저해작용을 갖는 트리엔계의 신규 화합물 십육-메칠옥사졸로마이신 (16-methyloxazolomycin) 및 토양에서 분리한 방선균류의 일종인 스트렙토마이세스( Streptomyces sp.)속의 균주로부터 신규 화합물인 십육-메칠옥사졸로마이신 (16-methyloxazolomycin)의 제조방법에 관한 것이다. 
     농약용 항생물질의 꾸준한 개발에도 불구하고 작물에 대한 약해 유발, 환경오염, 저항성 병원미생물의 출현등 그 부작용이 심각하여 독성이 없고 환경오염이 없는 새로운 물질의 개발이 절실히 요구되는 상황이다.    지금까지 10,000여종 이상의 생리활성물질이 미생물 배양액으로부터 분리되고 있으며 그중 일부는 실용화에 이른 것도 있다.    또한 미생물은 대사물질의 다양성 때문에 그들의 대사산물중에는 유용한 생리활성물질이 많아 개발 가능성이 매우 높다 하겠다.    이러한 취지에서 본발명자들은 식물병원균에 대하여 항균활성을 나타내는 물질을 분리하여 농약용 항생물질로 개발코자 탐색하던 중 대전지역에서 채취한 토양에서 분리한 방선균이 생산하는 신규 항생물질, 십육-메칠옥사졸로마이신 (16-methyloxazolo mycin)을 분리, 정제하여 구조를 밝히고, 이 화합물이 그람 양성 세균 및 녹조류에 활성이 있음을 확인하였으므로 본 특허를 출원코자 한다.
Patent KR-19990013801-A (KR)
Title: 전류원 회로
IPC: G05F3/22
Filed: 1998-07-13
Abstract: 본 발명은 커런트 미러를 구성하는 트랜지스터의 베이스와 컬렉터 사이를 단락하는 트랜지스터의 베이스 전류에 기초한 입출력 전류비의 오차를 보정하기 위한 것이다. 
     본 발명은 베이스가 공통 접속된 2개의 트랜지스터(Q6, Q7)와, 컬렉터가 트랜지스터(Q6, Q7)의 공통 베이스에 접속된 트랜지스터(Q10)와, 이미터가 트랜지스터(Q10)의 이미터에 접속되고 베이스가 트랜지스터(Q6)의 컬렉터에 접속된 트랜지스터(Q8)를 포함하는 커런트 미러 회로(10)와, 베이스가 공통 접속된 2개의 트랜지스터(Q31, Q32)와, 이미터가 트랜지스터(Q31, Q32)의 공통 베이스에 접속되고, 베이스가 트랜지스터(Q31)의 컬렉터에 접속된 트랜지스터(Q33)와, 이미터가 트랜지스터(Q33)의 이미터에 접속되고 베이스가 트랜지스터(Q7)의 컬렉터에 접속된 트랜지스터(Q34)를 포함하는 보정 회로(30)를 구비하고 있다.
Patent KR-20000009402-A (KR)
Title: Image display panel having transparent antistatic film of conductive organic polymer, manufacturing method thereof and coating solution thereof
Inventor: YOON SANG YOUL
IPC: H01J29/28
Filed: 1998-07-24
Abstract: PURPOSE: An image display panel having transparent antistatic film of conductive organic polymer, manufacturing method thereof and coating solution thereof is provided to enhance solution stability and storage characteristic. CONSTITUTION: The present invention discloses an image display panel having transparent antistatic film of conductive organic polymer comprising: an antistatic film(2) formed on its outer surface. The antistatic film(2) is transparent and consisted of organic polymer having electric conductive feature. And, the organic polymer contains polyethylenedioxythiophene which polystyrenesulphonate is doped in. Further, the antistatic film(2) has reflection prevention function in itself or is coated by non-reflection film.
Patent KR-19990014158-A (KR)
Title: 로직 혼재 메모리
IPC: H01L21/822
Filed: 1998-07-24
Abstract: 본 발명은 메모리 매크로의 설계 기간의 단축과 고유 면적의 축소를 도모한다. 
     본 발명에 따르면, 메모리 매크로(12)는 K비트 기억 용량의 메모리 셀 어레이 및 센스 앰프를 포함하는 L개의 메모리 어레이 블록(1-1, 1-2, …1-L)을 갖는다.  센스 앰프를 동작시키는 드라이버의 전원을 발생하는 회로를 포함하는 메모리 어레이 전원 드라이버 블록(4-1, 4-2, …, 4-L)은, 메모리 어레이 블록(1-1, 1-2, …1-L)에 대응하여 설치되어 있다.  메모리 어레이 블록(1-1, 1-2, …1-L)은 칼럼 방향으로 서로 인접하여 배치되고, 메모리 어레이 블록(1-1, 1-2, …1-L)상에는 칼럼 방향으로 늘어나는 DQ선쌍이 배치되어 있다.  전원선 블록(6a-L, 6b-L, 7a, 7b, 8a, 8b)은 메모리 어레이 블록의 로우 방향으로 단부(端部)에 배치되어 있다.
Patent KR-20000013581-A (KR)
Title: Mulberry leaf cold noodle and manufacturing method thereof
Inventor: SUNG HO JUNG
IPC: A23L7/109
Filed: 1998-08-11
Abstract: PURPOSE: A mulberry leaf cold noodle is provided to maintain an eating feeling, to supply an excellent color, and to contain a large amount of effective ingredient of the mulberry leaf. CONSTITUTION: A mulberry leaf cold noodle is manufactured by: mixing 80-86 wt% of wheat powder, 5-11 wt% of wheat starch, 3-9 wt% of mulberry leaf powder, and 6-12 of refined salt for making a cold noodle composition; adding 0.05-0.5 wt% of grape fruit; kneading, heating, and forming noodles; and drying for wrapping. The mulberry leaf powder having a fineness of under 200 mesh is added to the mulberry leaf cold noodle for preventing the decrease of an eating feeling caused by the cellulose ingredient of the mulberry leaf and for forming a green color by being mixed well.
Patent KR-20000015047-A (KR)
Title: Device for accessing a large-bit external device by a small-bit microprocessor
Inventor: LEE SU-BONG
IPC: G06F3/06
Filed: 1998-08-26
Abstract: PURPOSE: A device is provided to access an external device without a limitation of a data size of the external device by enabling to access a 16-bit or 32-bit external device using an 8-bit or 16-bit microprocessor. CONSTITUTION: The device for accessing a large-bit external device by a small-bit microprocessor comprises: a 16-bit bi-direction data storage control part(12) which outputs a signal for controlling a 16-bit bi-direction data storage according to a chip select signal outputted from a 16-bit microprocessor(11) and transfers the chip select signal to an 32-bit external device(14); and a 16-bit bi-direction data storage part(13) which stores a bi-direction data between the 16-bit microprocessor(11) and the 32-bit external device(14) according to the control of the 16-bit bi-direction data storage control part and makes the 16-bit microprocessor access the 32-bit external device.
Patent KR-19990023919-A (KR)
Title: 고 연소용 핵연료봉 및 구조재를 위한 지르코늄-주석-철 합금
IPC: G21C3/30
Filed: 1998-08-27
Abstract: 수형 원자로하의 수중 분위기에서 사용되는 지르코늄 합금은 0.3 내지 1.8 중량% 주석, 0.1 내지 0.65 중량% 철, 및 부수적인 불순물을 갖는 핵 등급의 지르코늄으로 이루어지며, 상기 합금 기질내에 내방사성 제 2상 석출물을 형성하도록 입내 및 입간에 균일하게 분포되는 미세구조의 Zr 3 Fe 제 2상 석출물을 함유한다.
Patent KR-20000019029-A (KR)
Title: Epoxy type probe card
Inventor: LEE SANG DON
IPC: H01L21/66
Filed: 1998-09-08
Abstract: PURPOSE: An epoxy type probe card is provided to improved a high frequency characteristic without change of probe length by decrease an effect of a parasitic inductance component. CONSTITUTION: An epoxy type probe card comprises a PCB(printed circuit board,101), a plurality of PCB pattern(102,104,106108,110), a plurality of probe-tip(112,114,116,118,120), a support member(122) and a dielectric(124). A plurality of PCB pattern are located on a plurality of position of the PCB and have a plurality of input/output terminal for input and output of signal. A plurality of probe-tip comprise a first probe-tip which connects to each of a plurality of PCB pattern and is for the high frequency; and a second probe-tip which is located in adjacent to the first probe-tip and for grounding. A support member supports a plurality of probe-tip on the PCB. A dielectric is filled in a space between a predetermined length of a plurality of probe-tips. Thereby, it decrease the cost for packaging a defect chip.
Patent KR-19980087733-A (KR)
Title: 수직 거푸집 측 조정구
IPC: G01C9/12
Filed: 1998-09-14
Abstract: 본 발명은 건축 현장에서의 필수적으로 사용하여야할 수직 거프집 측 조정구로서 철근 배근 작업후 콘크리트를 타설하기 위해 기둥 내지 벽의 거프집을 설치할 때 정확한 수직각을 조정한후 고정하고 타설해야 벽면이 수직으로 일정하고 깨끗하며 재보수의 하자가 발생치 않고 다음층의 철근음 정확히 배근할수 있으므로 철근과 콘크리트와의 적정 간격을 유지 시켜야 균열이 적고 수명을 유지할수 있으며 부실 공사로 인한 많은 하자보수의 원가가 절약되며 자원, 시간, 인력등 내외의 경제에 크게 이바지 할것임.
Patent KR-20000020629-A (KR)
Title: L-lysine-producing corynebacterium glutamicum cj31-0210and method for producing l-lysine thereby
Inventor: SHIN HYUN CHUL
IPC: C12P13/08
Filed: 1998-09-22
Abstract: PURPOSE: A novel Corynebacterium glutamicum CJ31-0210 strain and a method for producing L-lysine are provided. Thereby, a very high fermentation concentration of L-lysine is produced. CONSTITUTION: A novel Corynebacterium glutamicum CJ31-0210(KFCC-11043) strain is provided. The strain is not capable of fermenting acetic acid and yields a very high fermentation concentration of L-lysine. In addition, a method for producing L-lysine which comprises culturing Corynebacterium glutamicum CJ31-0210, removing the strains from the culture and isolating L-lysine from the culture is disclosed. The novel Corynebacterium glutamicum CJ31-0210(KFCC-11043) is a mutant mutated from acetic acid magnetic susceptibility to acetic acid nonmagnetic susceptibility and improves a fermentation concentration of L-lysine and yield compared to the mother strains.
Patent KR-19990062536-A (KR)
Title: 엘리베이터의 표시제어장치
IPC: B66B1/00
Filed: 1998-10-20
Abstract: 여러개의 정보를 하나의 표시수단으로 표시하고,  설치 스페이스의 삭감과 전체로서 값싼장치를 제공할 수 있는 동시에 겉보기 표시밸런스를 잃지 않고,  발광부분이 고정이 안되기 때문에 표시수단의 발광체의 수명을 연장하고,  표시수단의 교환빈도를 낮게한다. 
     정보를 표시하는 것을 지령하는 표시정보지령수단(30)과,  엘리베이터의 승강장 또는 카에 설치되고 엘리베이터의 이용자에 표시정보지령수단의 지령에 따라 정보를 제공하는 표시수단을 구비한 엘리베이터에 있어서,  표시정보지령수단에서 지령되는 하나 또는 여러개의 정보를,  그 표시하는 정보의 종류와 내용에 대응시켜서,  표시수단의 표시화면을 분할하고,  그 분할된 화면의 크기에 맞추어 표시화상을 형성함으로써,  각각의 정보를 표시수단에 할부하여 표시하는 것이다.
Patent KR-20000026693-A (KR)
Title: Color image processing system and method
Inventor: LEE SEONG DEOK
IPC: H04N9/64
Filed: 1998-10-22
Abstract: PURPOSE: A color image processing system and method are provided to realize a natural color image and a preference color image without using information on light source. CONSTITUTION: A color image processing system includes a first frame memory(202) for buffering first RGB signals and outputting the same to an image sampler(204) for outputting second RGB signals by down-sampling the first RGB signals. A color converter(206) converts the second RGB signals into a predetermined standard light source according to a standard color space with respect to an N number of light colors, and further converts the predetermined standard light source into an N*M number of third RGB signals according to an M number of representative color temperature information of a display(210). A second frame memory(208) buffers the third RGB signals and outputs the same.
Patent KR-20000028213-A (KR)
Title: Apparatus for eliminating noise made by neighboring illuminator for light receiver on tv
Inventor: SONG BOK CHEON
IPC: H04N5/44
Filed: 1998-10-30
Abstract: PURPOSE: An apparatus for eliminating noises made by neighboring illuminator in a TV light receiver is provided to remove a malfunction caused by noises, generated by the around illumination at night, by eliminating a noise signal in an infrared signal of a remote controller, interfered with the around illumination. CONSTITUTION: An apparatus for eliminating noises made by neighboring illuminator in a TV light receiver comprises a comparator(75), a filter(80), and a micom(55). The comparator compares information on a daytime infrared signal stored in a daytime infrared storage unit(70) with information on current infrared rays received in an infrared sensor(50), decides whether the information is the same, and applies the result to the micom. The filter eliminates noises of the infrared signal according to control of the micom, when the information is not the same. The micom controls the filter to eliminate the noises of the infrared signal according to the decis ion of the comparator.
Patent KR-19990014396-A (KR)
Title: 부식공법을 이용한 안경부품의 제조방법
Filed: 1998-11-03
Abstract: (1) 청구범위에 기재된 발명이 속한 기술분야. 
     부식공법을 이용한 안경부품의 제조방법에 관한분야. 
     (2) 발명이 해결하고자 하는 기술적 과제. 
     통상의 안경부품(안경테, 안경다리, 안경코다리 및 기타 여러 가지 소형부품들을 총괄하여 지칭함)은 주로 여러벌의 금형을 제작하여 프레스 등과 같은 기계를 이용하여 제조하였는데, 이는 제조공정이 과다하게 많고, 다품종 소량생산시 금형비 부담이 크머, 안경부품중 프레스 작업이 안되는 경우도 있어 생산에 많은 어려움이 따랐음은 물론, 완성된 안경의 외관이 획일화되고 또 표면에 여러 가지 무늬나 문양 등을 형성할 수 없어 디자인이 고정화 되는 등의 폐단이 따랐음. 
     (3) 발명의 해결방법의 요지. 
     본 발명은 스테인레스판과 같은 금속판재를 이용하여 부식방법으로 제조함으로써 제조공정을 크게 단축하고, 다품종 소량생산에 적합하며, 더불어 제조원가를 절감할수 있으면서 안경의 디자인, 색상, 무늬 등을 다양하게 하려는데 그 목적이 있는 것임. 
     (4) 발명의 중요한 용도. 
     안경부품 (안경테, 안경다리, 코다리 및 기타 소형부품 등등…) 부식방법으로 제조하는데 사용하는 방법임.
Patent KR-20000031654-A (KR)
Title: Structure of flexible film for fabricating semiconductor package
Inventor: YU DEOK SU
IPC: H01L23/49
Filed: 1998-11-09
Abstract: PURPOSE: A structure of a flexible film is provided to use as a reference point when mounting a bond and to increase the yield rate of lead bonding as increasing the number of circuit pattern units of each strip by positioning a reference mark at the inside of a package line. CONSTITUTION: Reference marks(2), which are installed for being the reference points of operation, are marked at four corners of a circuit pattern unit(6). Herein, the reference marks are located on the inside of a package line(3). The reference marks are clearly represented at the four corners of the circuit pattern unit by forming a plus shaped crossing after crossing circuit patterns(4) of line shape. Herein, the circuit patterns are printed at the outermost part of the circuit pattern unit. Therefore, production cost is reduced by increasing the printing density of the circuit pattern unit per strip.
Patent KR-20000032490-A (KR)
Title: Plasma display panel and method for driving the same
Inventor: KIM HWAN YOO
IPC: G09G3/292
Filed: 1998-11-14
Abstract: PURPOSE: A plasma display panel and a method for driving the same is provided to increase the efficiency and quality of the plasma display panel by making use of the bright column, by applying constant high voltage on the plasma display panel and by employing constant holding discharge. CONSTITUTION: A plasma display panel includes a lower board(42), an upper board(44), a barrier rib(44), and a fluorescent material(6). The upper board includes a display anode(36), and an auxiliary anode(34). The upper board is configured to face the lower board, and includes a cathode(32) and a resistive material(40). The barrier ribs(38) divides each discharge cells. The fluorescent material is formed on the upper board. The fluorescent material also is emitted.
Patent KR-20000033159-A (KR)
Title: Structure for coupling connection pipe of split type air conditioner
Inventor: PARK NO HUN
IPC: F24F13/00
Filed: 1998-11-20
Abstract: PURPOSE: A structure for coupling connection pipe of split type air conditioner is provided to integrally couple the service valve of an outdoor unit with a connecting pipe of an indoor unit to simplify the coupling procedure by inserting and pulling. CONSTITUTION: A structure for coupling connection pipe of split type air conditioner includes a connection socket(40) integrally coupled with a service valve(10) of an outdoor unit and the connection copper pipe(20) of an indoor unit and connected by a connection pipe, wherein the connection socket has a socket main body coupled with an O-ring(42) at a supporting protrusion(43b) of a hollow part to be formed with a piping stopper(41a), and a connecting part(43) formed in the hollow part of a main body(41) of the connecting socket to be fixed by elastic inserting, the connecting part is formed with a slit(43a) and a tapered inserting part(43c) formed with a plurality of supporting protrusions on an inane periphery radially and a fixing part(43d) extended from the inserting part to be fixed in an opening part of the connecting socket by inserting, and the supporting protrusion of the connecting part is formed with a slanted surface to be narrower toward the inserting direction.
Patent KR-19990045579-A (KR)
Title: 휴대 단말 장치의 핸드 스트랩 수납 구조
IPC: H04B1/38
Filed: 1998-11-25
Abstract: 제1 코킹부 및 제2 코킹부는 핸드 스트랩에 서로 이격되어 설치된다.  복수개의 오목부는 제1 및 제2 코킹부 각각의 양측면에 형성된다.  복수개의 볼록부는 복수개의 오목부와 각각 결합하도록 상기 핸드 스트랩 수납부의 양측 벽면에 형성된다.  절첩 단부 고정 수단은, 핸드 스트랩을 수납할 때, 굵은 끈 고리부의 후단에 형성되는 절첩 단부를 착탈 가능하게 고정시키기 위해서 상기 제1 코킹부에 형성된다.
Patent KR-20000034605-A (KR)
Title: Method of global title translation for providing number portability intelligent network system
Inventor: KIM JI SEON
IPC: H04L12/50
Filed: 1998-11-30
Abstract: PURPOSE: A method of global title translation for providing number portability in an intelligent network system is provided so that an exact routing of the Non-circuit Related Message can be guaranteed by efficiently dividing the data and function relating to the global title translation. CONSTITUTION: A method of global title translation for providing number portability in an intelligent network system includes several steps. A first step is to discriminate the kind of events. In the first step, if a request for receiving a message from a message transfer part (MTP) to an SCCP Routing Control (SCRC) exists, a second step is to translate a global title and transmit the translated message to other function parts (502). In the first step, if a request for receiving a message from an SCCP Connectionless Control (SCLC) to an SCCP Routing Control (SCRC) exists, a third step is to translate a global title and transmit the translated message to other function parts (515). In the first step, if a request for receiving the message from an SCCP Connectionless Control (SCLC) exists, a fourth step is to allocate a Signaling Link Selection (SLS) code and transmit the unit data message (UDT) to the SCCP Routing Control (SCRC) (518). In the first step, if a request for receiving the message from the SCCP Routing Control (SCRC) to the SCCP Connectionless Control (SCLC) exists, a fifth step is to classify the message as its kinds and transmit the message to the corresponding functions. In the first step, if a request for receiving the message from the SCCP Routing Control (SCRC) to the SCCP Connectionless Control (SCLC) exists, a fifth step is to classify the message as its kinds and transmit the message to the corresponding functions (521). In the first step, if a request for receiving the message from the SCCP Connectionless Control (SCLC) exists, a sixth step is to allocate a Signaling Link Selection (SLS) code and transmit the unit data service message (UDTS) to the SCCP Routing Control (SCRC).
Patent KR-20000037546-A (KR)
Title: Method for manufacturing taxol using sodium benzoate
Inventor: KANG GYEONG AE
IPC: C12P17/02
Filed: 1998-12-01
Abstract: PURPOSE: A method for manufacturing taxol is provided which accumulates high concentration of taxol by culturing Pestalotia heterocornis in the medium including high concentration of sodium benzoate. CONSTITUTION: Taxol if formula (1) shows an excellent anticancer activity, therefore, is used for developing medical supplies. The taxol-producing bacteria such as Pestalotia heterocornis KCTC 0340BP are cultured in the medium including sodium benzoate during the production of taxol. The production of taxol is increased from 30 μg to 100 μg based on 1 liter of medium by adding 0.1-10 g(desirably 0.3-3 g) of sodium benzoate into 1 liter of medium.
Patent KR-20000037867-A (KR)
Title: Qam constellation of cable modem and method for mapping qam symbol
Inventor: YUN SANG HO
IPC: H04L27/08
Filed: 1998-12-02
Abstract: PURPOSE: A QAM constellation of a cable modem and a method for mapping a QAM symbol are provided to reduce a size of a hardware by performing a symbol mapping using one 256 QAM constellation. CONSTITUTION: A QAM constellation of a cable modem composes 256 QAM constellation by adding data of 2 bits having values of 00, 01, 11, 10 to lower 2 bits of symbols of 6 bits corresponding to 64 QAM constellation coordinate by using a gray coding method. A method for mapping a QAM symbol comprises the steps of: generating a 256 QAM constellation by adding data of 2 bits having values of 00, 01, 11, 10 to lower 2 bits of symbols of 6 bits corresponding to 64 QAM constellation coordinate; performing a symbol mapping by the 256 QAM constellation if data of 8 bits are inputted; and performing the symbol mapping by ignoring 2 bits added to predetermined locations of each symbol of a 256 QAM constellation coordinate if data of 6 bits are inputted.
Patent KR-20000040927-A (KR)
Title: Method for removing organic matters in coating wastewater
Inventor: KO KWANG SUB
IPC: C02F1/28
Filed: 1998-12-21
Abstract: PURPOSE: A method for removing organic matters in coating wastewater is provided, which is characterized in that activated carbon is used for adsorbing organic matters. CONSTITUTION: A treating method of Pb-Sn coating wastewater is composed of a aeration progress for removing floated oil, pH controlling progress, removing progress by changing into hydroxide, and an adsorbing progress using activated carbon. Oil components are floated by air, and wastewater which oil components are removed is transferred to neutralization tank. The heavy metal ions are changed into hydroxide, and settled. Treated wastewater is filtered made of gravel to remove small particles, and organic matters are adsorbed by granular activated carbon layer. Activated carbon, sand, and gravel are arranged in order.
Patent KR-20000041075-A (KR)
Title: Method of filing contact hole with metal
Inventor: KIM DONG YUN
IPC: H01L21/28
Filed: 1998-12-21
Abstract: PURPOSE: A method of filling a contact hole with a metal is to prevent a void and a spark generated within a contact, thereby improving a contact profile. CONSTITUTION: A method of filing a contact hole with a metal comprises steps of forming a lay insulating film(104) on a contact sub film, edging the lay insulating film using a photoresist pattern as a mask and forming a contact hole, forming a desired film on the lay insulating film and at both sides and a lower face of the contact hole, edging the desired film and forming a spacer(110a) at both sides of the contact hole, and forming a metal film on the lay insulating film to fill the contact hole. In the method, the contact sub film is one of the metal film, a semiconductor substrate and a polysilicon film. The desired film is formed of one of a Ti film, a TiN film and an oxide film.