baber/WOPTO huggingface dataset:
Patent KR-20040050110-A (KR)
Title: Sensitive substance and surface acoustic wave gas sensor used with this
Inventor: CHO SEUNG YEON
IPC: G01N29/02
Filed: 2002-12-09
Abstract: PURPOSE: A sensitive substance and a surface acoustic wave gas sensor by using the same are provided to detect material within a short period of time by coating the sensitive substance having superior sensitivity for dichloro-ethan on the surface acoustic wave gas sensor. CONSTITUTION: A surface acoustic wave gas sensor includes an input transformer(220), an output transformer(240), and a sensitive substance layer(300) formed between the input transformer(220) and the output transformer(240). The sensitive substance layer(300) is provided for detecting one of acetone, benzene, dichloro-ethan, ethanol, and toluene. The sensitive substance layer(300) is formed by coating CMP consisting of cellulose nitrate, dibutyl phthalate, a mixture of benzene and ethanol, and ethyl acetate and acetone mixed with mercaptoundecanoic acid onto a piezo-electric plate(100).
Patent KR-20040052385-A (KR)
Title: Method of preparing tubular nanostructured titanium dioxide photocatalysts by template synthesis and use of nanostructured photocatalysts prepared thereby
Inventor: LEE SI HUN
IPC: B01J21/06
Filed: 2002-12-17
Abstract: PURPOSE: Provided is a method for preparing a titanium dioxide photocatalyst, which prepares a tube-shaped nano-structured titanium dioxide catalyst by using a template synthesizing method, and uses for the titanium dioxide photocatalyst prepared thereby. CONSTITUTION: The method comprises steps of (a) hydrolyzing a titanium dioxide precursor with an acid solution while adding a hydrolysis retarder thereto to prepare a nano-sol solution; (b) immersing an alumina membrane in the nano-sol solution; (c) taking out the alumina membrane from the nano-sol solution of the step (b) and applying vacuum thereto to obtain a titanium dioxide nano-structured body; (d) after adhering the titanium dioxide nano-structured body to a stationary phase by using an inorganic binding agent, calcining it; and (e) removing the template from the step (d).
Patent KR-20040053587-A (KR)
Title: Insulation sheet of sound
Inventor: LEE BONG JIK
IPC: E04F15/20
Filed: 2002-12-17
Abstract: PURPOSE: An interlayer impact sound reducer is provided to have excellent sound-absorbing and sound-insulating efficiencies. CONSTITUTION: The interlayer impact sound reducer(1) is placed on the bottom of a concrete floor slab(10) and applied with autoclaved lightweight concrete(13) and cement mortar(15), and composed of 5-20 weight percent fine powdered waste tire, one of 60-80 weight percent iron oxide or powdered limestone, and 5-10 weight percent EVA(Ethylene Vinyl Acetate) or vinyl chloride.
Patent KR-20040059432-A (KR)
Title: Nonvolatile ferroelectric memory device
Inventor: NOH GEUM HWAN
IPC: G11C11/22
Filed: 2002-12-30
Abstract: PURPOSE: A ferroelectric memory device is provided to improve fatigue and dielectric breakdown phenomenon of a ferroelectric capacitor of a reference cell. CONSTITUTION: A unit memory cell(520) is constituted with the first transistor and the first ferroelectric capacitor and stores data. A reference cell(540) is constituted with the second transistor and the second ferroelectric capacitor and generates a reference voltage using non-switching charges. A sense amplifier(560) senses data stored in the memory cell by comparing a data signal of the memory cell with a reference voltage signal of the reference cell and then amplifying it. The reference cell operates at a lower power supply voltage than the memory cell, and the second ferroelectric capacitor is larger than the first ferroelectric capacitor.
Patent KR-20040060096-A (KR)
Title: Nickel stamper cleaning apparatus of hologram diffuser fabrication and the method
Inventor: LEE JONG HOE
IPC: G02F1/13
Filed: 2002-12-30
Abstract: PURPOSE: An apparatus and a method for cleaning a nickel stamper of a hologram diffuser process are provided to clean effectively a nickel stamper attached to a roller used in a hologram diffuser process and reduce waste of cleaning agents. CONSTITUTION: The first and second brushes(61,62) having a cylinder shape rotate and clean the nickel stamper attached to a roller. The first and second projection nozzles(63,64) are formed at the insides of cylinders in the first and second brushes(61,62) and project cleaning agent liquid. A supply hose(65) is possessed at the first and second projection nozzles(63,64), respectively, so that the cleaning agent liquid is supplied from the outside agent liquid tubs. A discharge drain discharges the remaining cleaning agent liquid to the outside agent liquid tubs.
Patent KR-20040060215-A (KR)
Title: method and apparatus of simulate capability test in inverter
Inventor: HAN YEONG JAE
IPC: G01R27/00
Filed: 2002-12-30
Abstract: PURPOSE: A simulation system for performing a performance test of an inverter and a simulating method thereof are provided to reduce the test time and the test cost by performing the performance test using a simulation method without a filed test method. CONSTITUTION: A simulation system for performing a performance test of an inverter includes a test driver and a simulator. The test driver is used for providing the predetermined current to perform a performance test of a driver. The simulator is used for receiving the driver information and the load characteristic information, setting up the same environment as the driver and the load, receiving the current from the test driver to perform a simulation process, and outputting a result of the simulation process.
Patent KR-20020026543-A (KR)
Title: Novel peptides
IPC: A61K48/00
Filed: 2000-07-24
Abstract: The present invention provides a novel peptide-type compound which induces secretion of growth hormone and which has the activity of increasing the intracellular calcium ion concentration, wherein at least one amino acid is replaced by a modified amino acid and/or a non-amino acid compound, or a pharmaceutically acceptable salt thereof.
Patent KR-20020012323-A (KR)
Title: 심혈관 질환 치료용 ｐｐａｒ 델타 억제제
IPC: G01N33/50
Filed: 2000-07-19
Abstract: PPARδ 활성 억제제의 유효량을 환자에게 투여하는 것을 포함하는, 환자에서 대식세포로부터의 포말 세포 발생을 방지 또는 감소시키거나, 또는 포말 세포를 제거하는 방법이 기재되어 있다.  PPARδ 활성 억제제의 유효량을 환자에게 투여하는 것을 포함하는, 환자에서 혈관의 플라크 형성 및(또는) 혈전성 차단과 관련된 혈관 질환을 예방 또는 치료하는 방법이 기재되어 있다.
Patent KR-20020042831-A (KR)
IPC: G06F17/30
Filed: 2000-09-06
Abstract: 본 발명은 데이터 요소들이, 시그너처에 의한 참조를 통하여 요소들을 액세스하는데 적합한 시스템에 의하여, 적절한 해당 언어 번역기를 통하여 조회자에게 렌더링될 수 있는 데이터의 수학적 정규식으로부터 추출되는 시그너처에 의하여 제공 및 식별되는 방법을 제공한다. 해당 언어 번역기는 텍스트-음성 번역기, 상기 요소들에 매핑되는 저장된 청각식 및 HTML 표현식에 매치시키기 위하여 프로그램된 단순한 텍스트식을 포함할 수 있다. 본 발명의 또 다른 형태에 따르면, 본 발명은 선택된 요소의 식별, 상기 의도된 문맥에 적합한 렌더링을 위한 선택된 요소의 맞춤화 및 적합한 해당 언어 번역기를 통한 선택된 요소 및 맞춤화된 요소의 추가 명세를 더 포함한다.
Patent KR-20020040813-A (KR)
Title: A method of producing ethyl acetate and an equipment for carrying out this method
IPC: B01J8/02
Filed: 2000-10-11
Abstract: The invention relates to a method of producing ethyl acetate by reaction of ethyl alcohol with acetic acid and/or acetic anhydride in the presence of a solid acidic catalyst accompanied by simultaneous distillation separation of reaction components, in which acetic acid or acetic anhydride or a mixture thereof and ethyl alcohol, respectively, are introduced separately in a molar ratio of 2:1 to 1:2.5 and in a defined quantity, per unit volume of catalyst, into a system separated into three zones, whereby, in the reaction zone, the reaction runs simultaneously with distillation separation of components, acetic acid feed is introduced into the reaction zone or above the zone and ethyl alcohol feed is introduced into the reaction zone or below this zone; in the upper separation zone, the volatile mixture is separated; thereafter, it is cooled to 5 to 70° C. and then separated into water and organic phases and the organic phase with a high ethyl acetate content is drawn off and partially returned as reflux flow into this system, whereby, the ratio of the starting components feed and the organic reflux flow is 1:1 to 1:20. This invention also relates to equipment for carrying out this method.
Patent KR-20020035165-A (KR)
IPC: G11B20/18
Filed: 2001-07-20
Abstract: 입력 신호 전압 레벨(xp k ,xn k )과 이 입력 신호 전압 레벨에 대해 추정된 값(rp,rn) 간의 차를 나타내는 오차 신호를 생성하는 장치는 제 1 트랜스컨덕터(T1,T2) 및 제 2 트랜스컨덕터(T5,T6)와, 이 트랜스컨덕터의 출력 간의 차의 계수를 형성하는 차 계산 회로(T3,T4,T7,T8)를 포함한다.   상수 신호(constant signal)(408)로부터 오차 신호를 감산함으로써, 오차 신호는 확률 신호로 변환되고, 이로써 입력 전압 레벨 및 추정된 값이 동일할 때 최대가 되는 출력(407)에서의 신호를 생성하게 된다.
Patent KR-20020062940-A (KR)
IPC: H01L51/30
Filed: 2001-08-30
Abstract: 본 발명은 하기 화학식 1의 신규 아릴아민 화합물, 이 신규 아릴아민 화합물을 포함하는 유기 화합물 층을 포함하는 유기 전기발광 소자를 제공한다: 
     화학식 1 
     
       
     
     상기 식중, 
     R 1 및 R 2 는 각각 독립적으로 알킬기, 알콕실기, 아릴기, 아릴알킬기 또는 아릴옥실기를 나타내고; 
     Ar 1 내지 Ar 4 는 아릴기 또는 헤테로사이클기를 나타내지만, 단, Ar 1 내지 Ar 4 중 2종 이상이 각각 m-비페닐기 또는 아릴기로 치환된 비페닐기를 나타내는 경우에 Ar 1 내지 Ar 4 중 나머지는 각각 비페닐기를 나타내고, 아릴기로 치환된 비페닐기가 2개의 아릴기로 치환된 비페닐기이면 Ar 1 내지 Ar 4 중 나머지는 각각 아릴기를 나타낸다. 
     본 발명의 유기 전기발광 소자는 높은 휘도, 우수한 내열성 및 긴 수명을 가지며 높은 효율로 광을 방사한다.  본 발명의 신규 아릴아민 화합물은 유기 전기발광 소자에 유리한 특성을 제공한다.
Patent KR-20020074456-A (KR)
IPC: A47G27/02
Filed: 2000-12-13
Abstract: 본 발명은 카펫 지지물을 제조하기 위한 수 분산된 중합체 조성물을 제공한다.  당해 수 분산된 중합체 조성물은 수 분산된 중합체성 재료 및 소수성화 개질된 에틸렌 옥사이드계 우레탄 블록 공중합체를 포함한다.  바람직한 양태에서, 당해 수 분산된 중합체성 재료는 수성 폴리우레탄 분산 조성물이다.  또한, 당해 수 분산된 중합체 조성물을 사용하여 카펫 지지물을 제조하는 방법이 제공된다.
Patent KR-20020089312-A (KR)
Title: 안정화제 혼합물
IPC: C07D251/24
Filed: 2000-12-14
Abstract: 화합물 G 2 , 및 그룹 G 0 , G 1 , G 3 , G 4 ,G 5 , 및 G 6 (이때, 화합물 G 0 내지 G 6 은 각각 화학식 I에 상응한다)으로부터의 하나 이상의 추가 화합물을 포함하는 화합물 혼합물은 광, 산소 및/또는 열에 대한 노출에 의한 손상으로부터의 유기 물질의 안정화제로서 유용하다. 
     화학식 I 
     
       
     
     상기식에서, 
     화합물 G 0 에서, 라디칼 R 1 , R 2 , R 3 , R 4 , R 5 및 R 6 은 각각 수소이고, 
     화합물 G 1 에서, 라디칼 R 1 은 Q이며 R 2 , R 3 , R 4 , R 5 및 R 6 은 각각 수소이고, 
     화합물 G 2 에서, 라디칼 R 1 및 R 2 는 서로 독립적으로 각각 Q이며 R 3 , R 4 , R 5 및 R 6 은 각각 수소이고, 
     화합물 G 3 에서, 라디칼 R 1 , R 2 및 R 3 은 서로 독립적으로 각각 Q이며 R 4 , R 5 및R 6 은 각각 수소이고, 
     화합물 G 4 에서, 라디칼 R 1 , R 2 , R 3 및 R 4 는 서로 독립적으로 각각 Q이며 R 5 및 R 6 은 각각 수소이고, 
     화합물 G 5 에서, 라디칼 R 1 , R 2 , R 3 , R 4 및 R 5 은 서로 독립적으로 각각 Q이며 R 6 은 수소이고, 
     화합물 G 6 에서, 라디칼 R 1 , R 2 , R 3 , R 4 , R 5 및 R 6 은 서로 독립적으로 각각 Q이며, 
     Q 및 다른 치환체들은 제1항에서 정의된 바와 같다.
Patent KR-20030005221-A (KR)
IPC: A61P35/00
Filed: 2001-03-16
Abstract: 본 발명의 다음 구조식의 2-(4-술포닐페닐)피란-4-온 유도체, 그것들의 제조 방법, 그것들을 포함하는 제약학적 조성물, 및 그것들의 의학적 사용에 관한 것이다.
Patent KR-20020080003-A (KR)
Title: 실리콘겔 조성물
IPC: C08L83/07
Filed: 2001-03-15
Abstract: 높은 진동 흡수성 및 높은 형태 유지성을 지니며, 용기 또는 주머니에 밀봉되지 않는 경우에도 예를 들어, 진동 흡수 제동자로서 사용될 수 있는 진동 흡수성 실리콘겔 조성물이 개시되어 있다.  이 조성물은 (a) 분자 중에 (메트)아크릴로일기를 갖는 오르가노폴리실록산 1O0 중량부; (b) (a) 성분과 비반응성인 오르가노폴리실록산 5 내지 100 중량부; (c) 삼차원 가교된 실리콘 수지의 부정형 분쇄물 1 내지 50 중량부; (d) 분무질 실리카 1 내지 20 중량부; 및 (e) 중합 개시제 유효량을 주성분으로 포함한다.
Patent KR-20020091167-A (KR)
Title: 2-Alkylidene-19-Nor-Vitamin D Compounds And Their Therapeutic Uses
IPC: C07C401/00
Filed: 2001-03-29
Abstract: This invention provides a novel class of vitamin D related compounds, namely, the 2-alkylidene-19-nor-vitamin D derivatives, as well as a general method for their chemical synthesis. The compounds have the formula: where Y1 and Y2, which may be the same or different, are each selected from the group consisting of hydrogen and a hydroxy-protecting group, R6 and R8, which may be the same or different, are each selected from hydrogen, alkyl, hydroxyalkyl and fluoroalkyl, or when taken together represent the group -(CH2)X- where X is an integer from 2 to 5, and where the group R represents any of the typical side chains known for vitamin D type compounds. These 2-substituted compounds are characterized by relatively high intestinal calcium transport activity and relatively high bone calcium mobilization activity resulting in novel therapeutic agents for the treatment of diseases where bone formation is desired, particularly low bone turnover osteoporosis. These compounds also exhibit pronounced activity in arresting the proliferation of undifferentiated cells and inducing their differentiation to the monocyte thus evidencing use as anti-cancer agents and for the treatment of diseases such as psoriasis.
Patent KR-20020091837-A (KR)
Title: 개구부와 일렬인 탄성 장력의 통합 대역을 갖는 흡수 용품
IPC: A61F13/49
Filed: 2001-05-15
Abstract: 일회용 가먼트는 착용자 상에서 다리, 팔 또는 허리 등을 위한 하나 이상의 개구부들을 한정하는 새시 (chassis)를 포함한다.  새시의 적어도 일부는 재료의 형성 동안 통합된, 동일한 재료 내의 고 및 저 탄성 장력의 대역들을 포함하는 표적화 탄성 재료를 포함한다.  표적화 탄성 재료는 적어도 하나의 고 장력 대역이 적어도 하나의 가먼트 개구부와 일렬이어서, 개별적으로 제조되어 부착된 탄성 밴드를 필요로하지 않으면서 탄성 밴드로서 기능할 수 있도록 배치된다.
Patent KR-20030003754-A (KR)
Title: High-strength bolt excellent in delayed fracture resistance characteristics and its steel product
IPC: C22C38/06
Filed: 2002-03-22
Abstract: The present invention provides a high strength bolt superior in delayed fracture resistant property having a bolt tensile strength of 1200 N/mm<2> or more and a steel material for the same. <??>A high strength bolt comprised of a head portion and shaft portion formed by a steel material, wherein the relation between a bolt tensile strength TS (N/mm<2>) and tempering temperature T ( DEG C) satisfies the following expression (1), the relation between the bolt tensile strength TS (N/mm<2>) and the carbon equivalent Ceq (%) calculated from the chemical composition of the steel material used for the high strength bolt satisfies the following expression (2), and the tensile strength of the bolt is refined to a range of 1200 N/mm<2> to 1600 N/mm<2> by quenching and tempering: <DF NUM="(1)">TS≤.1T+850 </DF> <DF NUM="(2)">TS≤550Ceq+1000 </DF> where, <DF>Ceq=C+(Mn/6)+(Si/24)+(Ni/40) +(Cr/5)+(Mo/4)+(V/14) </DF> <IMAGE>
Patent KR-20040062718-A (KR)
Inventor: CHO CHANG RAE
IPC: H04N21/418
Filed: 2003-01-03
Abstract: PURPOSE: A hacking preventing method in a set-top box is provided to boot an OS(Operating System) through a double authentication process for preventing hacking in the set-top box. CONSTITUTION: A control unit loads an OS image of a flash 1 to a flash 1, and authenticates the flash 2. The control unit loads data of the flash 1 to the authenticated flash 2, and authenticates the flash 1(440-458). The control unit judges whether a magic number exists. If the magic number exists, the control unit performs booting. The control decodes data loading a key code and an encoded CRC(Cyclic Redundancy Checking) value, and generates data.
Patent KR-20040063692-A (KR)
Title: Functional confectionery
Inventor: SON YOUNG SUK
IPC: A23G3/00
Filed: 2003-01-08
Abstract: PURPOSE: Functional confectionery using a fermented product and conventional confectionery material is provided. The fermented product is prepared by fermenting nutraceuticals, cereals, vegetables, fruits, tourmarine, loess, charcoal and the like. It has characteristic taste and flavor of confectionery as well as pharmacological action of components. CONSTITUTION: Nutraceuticals are mixed with cereals, vegetables, fruits, tourmarine, loess, charcoal and the like and then fermented to give a fermented functional material, which is mixed with confectionery material to make functional confectionery. The cereals are selected from rice, barley, foxtail millet, oat, Vigna sinensis, buckwheat, sorghum, red-beans and mung beans. The nutraceuticals are selected from ginseng extract, mushroom extract and powder, fermented organic material of animals and plants, physiologically active materials of plants, animals, birds, bacteria and carbohydrates or the like. The fruits are selected from plums, ginger, grapes, bananas, pears, pineapples, jujubes, chestnuts, apples, melons, water melons, persimmons or the like.
Patent KR-20040064070-A (KR)
Inventor: KANG HO GYEONG
IPC: E21D11/38
Filed: 2003-01-09
Abstract: PURPOSE: A leakage repair method of a tunnel is provided to minimize the inflow of underground water into a structure and to reduce the repair amount, the repair time and the repair cost by separating the defective portion of a waterproof sheet from the other part of the structure. CONSTITUTION: A drain pipe to guide underground water to a collector well is turned off to seize the leaked position exactly in a concrete tunnel(100). The leaked positions are sequentially checked through a field research(200). Plural waterproof partitions are formed by injecting a waterproof seal between a concrete lining and a waterproof sheet through a circumference of a tunnel section from the initial leaked position(300). A waterproof is performed by injecting the waterproof seal in the leaked position to be separated from the waterproof partitions(400).
Patent KR-20040064183-A (KR)
Title: Functional tableware
Inventor: SON YOUNG SUK
IPC: A47G19/00
Filed: 2003-01-09
Abstract: PURPOSE: Functional tableware is provided to include natural brewing diet enzymes by using functional materials known as increasing the functions of the internal organs in general being mixed with all kinds of grains, vegetables, plants and fruits, tourmaline raw stones, mud and charcoal and as having the bio-control functions such as the metabolism in the body system, bio-defense, bio-rhythm control, prevention of and recovery from a disease. CONSTITUTION: The functional tableware comprises diet enzyme and herb medicine ingredients of functional materials/nutraceuticals from the natural raw materials. The method of the functional tableware comprises all kinds of profitable fermenting processes such as saccharification and acetic acid/lactic acid treatment, wherein the materials containing herb medicine extract ingredients as prepared at the rate of each functional material/nutraceuticals are added, transcribed, applied and contained under their coexistence.
Patent KR-20040071522-A (KR)
Inventor: JANG YONG GYU
IPC: G02F1/1335
Filed: 2003-02-06
Abstract: PURPOSE: A transflective LCD(Liquid Crystal Display) is provided to accomplish multiple cell gaps. CONSTITUTION: A transflective LCD includes a lower substrate(100), an upper substrate(200), and a liquid crystal layer(300). The lower substrate includes a pixel electrode(150), a reflection part(160) that is formed on a portion of the pixel electrode and reflects natural light, and a transmission window(170) that is located in a region where the reflection part is not formed and transmits artificial light. The upper substrate includes a color filter layer(210) having the first thickness corresponding to the reflection part and the second thickness corresponding to the transmission window. The liquid crystal layer is formed between the lower and upper substrates. The liquid crystal layer has the third thickness corresponding to the reflection part and the fourth thickness corresponding to the transmission window. Liquid crystal molecules of the liquid crystal layer are homogeneously aligned to have a twist angle of 0 degree.
Patent KR-20040072083-A (KR)
Inventor: JANG HYEON JEONG
IPC: H03L7/07
Filed: 2003-02-08
Abstract: PURPOSE: A multi-phase clock generation circuit for reducing a skew of a clock signal and a method for generating a multi-phase clock are provided to reduce the skew of multi-phase clock signals by routing current elements regardless of the skew. CONSTITUTION: A multi-phase clock generation circuit for reducing a skew of a clock signal includes a PLL, a sub-oscillation circuit, and a first line. The PLL(110) is used for generating the control current and predetermined output clock signals according to phases and frequencies of a reference clock signal and a predetermined divided clock signal. The sub-oscillation circuit(120) is used for generating plural multi-phase clock signals in response to the control current. The first line(130) is routed to supply the control current to the sub-oscillation circuit.
Patent KR-20040072158-A (KR)
Inventor: CHOI DONG HUN
IPC: C11D9/38
Filed: 2003-02-10
Abstract: PURPOSE: Provided are a gel type slimming soap which removes various waste materials of skin to keep the skin clean, contributes to activation of skin cell and stimulation of metabolism, and promotes the decomposition of cellulite and discharges fat mass and waste material that are unnecessary ingredients of body, and a method for producing the same. CONSTITUTION: The soap comprises 30-60 wt% of base that is a gelled starch extracted from glutinous corn, 20-30 wt% of vegetable oil extracted from coconut or coconut tree, 10-20 wt% of bamboo salt powder, 5-10 wt% of glycerin, 5-10 wt% of sea tangle extract, 3-8 wt% of liquefied bioceramic, 3-8 wt% of lecithin extracted from soy bean, 0.5-1.5 wt% of each of liquefied vitamins A and E, and 0.3-0.8 wt% of each of hyaluronic acid, olive oil, aloe extract, and natural aroma. The method comprises the steps of (i) dissolve a starch powder extracted from glutinous corn into distilled water in mixer, with heating, so as to form a gelled base, (ii) adding the vegetable oil, bamboo salt powder, glycerin, sea tangle extract, liquefied bioceramic, lecithin extracted from soy bean, liquefied vitamins A and E, hyaluronic acid, olive oil, aloe extract, and natural aroma to the mixer, and then mixing them, (iii) withdrawing the mixed gelled composition with vacuum pressure and packing the composition in container at the same time.
Patent KR-20040076661-A (KR)
Inventor: HWANG DAE HWAN
IPC: G10L19/14
Filed: 2003-02-26
Abstract: PURPOSE: A shaping apparatus and method in consideration of energy distribution characteristic of a voice signal are provided to improve sound quality of a voice CODEC. CONSTITUTION: A shaping apparatus in consideration of energy distribution characteristic of a voice signal includes an encoder(210) and a decoder(220). The encoder pre-processes an input audio signal that is a voiceless sound or surrounding noise, and fast-Fourier-transforms the input audio signal. The encoder compares energies of respective bands for frequencies divided based on characteristics of the voiceless sound or surrounding noise and finds a band flag indicating energy distribution characteristic. The decoder carries out shaping in consideration of band characteristic of the original audio signal transmitted from the encoder.
Patent KR-20030071546-A (KR)
Title: 전자방출소자, 전자원 및 화상형성장치의 제조방법
IPC: H01J9/02
Filed: 2003-02-27
Abstract: 공정을 간략화 할 수 있고, 또한, 전자방출 특성을 개선할 수 있는 전자방출소자의 제조방법을 제공한다. 이 제조방법은, 1쌍의 전극과 해당 1쌍의 전극을 접속하고, 고분자와 흡광특성을 지닌 물질을 함유하는 고분자막이 배치된 기판을 제조하는 공정과; 상기 고분자막에 광을 조사함으로써, 해당 고분자막을 저저항화하는 공정과; 상기 고분자막의 저저항화에 의해 얻은 막에 간극을 형성하는 공정을 포함한다.
Patent KR-20030027912-A (KR)
Inventor: PARK KANG SUB
IPC: F25D23/00
Filed: 2003-02-27
Abstract: PURPOSE: A deodorizer for refrigerator is provided to collect various odor particles in the refrigerator. CONSTITUTION: A deodorizer includes a housing(10) formed in hollow pillared shape and made of copper; and a plurality of fine wires(20) made of copper, inserted in the housing and forming gaps between peripheries thereof. Odor particles are placed in the gaps and absorbed by the peripheries of the fine wires to be concentrated as plenty of free electrons of copper join with the odor particles.
Patent KR-20030072230-A (KR)
Title: 반도체 기판 상의 골을 메우는 방법
IPC: H01L21/3105
Filed: 2003-02-28
Abstract: 본 발명은 수직으로 서로 연접된 2개의 반도체 층 사이에 있는 골, 특히 절연 트렌치를 형성하는 중에 생기는 골을 메우는 방법에 관한 것이다.  그러한 방법에서는 커버 층, 바람직하게는 산화실리콘으로 이뤄진 커버 층을 넓은 면적으로 침착시키고, 이어서 거의 층의 전체의 깊이까지 도핑 재료, 바람직하게는 질소를 도핑하는데, 도핑 재료는 커버 층의 제거율을 상승시켜 제거 과정 후에 커버 층 재료가 골 내에만 남도록 하기 위해 제공된다.
Patent KR-20030074375-A (KR)
Title: 실런트용 수지 조성물, 실런트 필름 및 그의 용도
IPC: B32B27/32
Filed: 2003-03-12
Abstract: 본 발명은 열실링성과 박리용이성(easy peel)을 가지고, 또한 낮은 열실링 강도에서도 박리시 접착면으로부터 점착 현상이 발생하지 않는 실런트용 수지 조성물을 제공한다.  상기 실런트용 수지 조성물은 폴리에틸렌계 수지 및 폴리프로필렌계 수지를 포함하고, 폴리에틸렌계 수지는 용융 유속(ASTM D1238, 190 ℃, 2.16 kg 하중)이 0.1 내지 50(g/10분), 밀도(ASTM D1505)가 0.850 내지 0.960(g/cm 3 )인 에틸렌계 중합체 30 내지 90 중량％ 및 용융 유속(ASTM D1238, 190 ℃, 2.16 kg 하중)이 0.1 내지 25(g/10분), 밀도(ASTM D1505)가 0.880 내지 0.925(g/cm 3 )인 부텐계 중합체 5 내지 50 중량％, 점착 부여제 2 내지 40 중량％를 포함하고, 폴리프로필렌계 수지는 프로필렌계 중합체 30 내지 90 중량％, 용융 유속(ASTM D1238, 190 ℃, 2.16 kg 하중)이 0.1 내지 50(g/10분), 밀도(ASTM D1505)가 0.850 내지 0.960(g/cm 3 )인 에틸렌계 중합체 5 내지 50 중량％, 점착 부여제 1 내지 20 중량％를 포함하며, 점착 부여제는 20 내지 140 ℃의 범위에 유리 전이점을 가지고 수평균 분자량이 1200 이하이다.  이러한 수지 조성물로부터 얻어진 필름은 포장 필름의 용기의 실런트층으로서 적합하다.