baber/WOPTO huggingface dataset:
Patent KR-20070116731-A (KR)
Title: Wire rod excellent in wire-drawing workability and method for producing same
Inventor: KOCHI TAKUYA
IPC: C21D8/06
Filed: 2007-06-05
Abstract: A wire rod and a method for producing the same are provided, wherein the wire rod is excellent in wire-drawing workability, is insensitive to wire breakage in spite of an increase in wire-drawing rate and a decrease in area of the wire rod, and can extend life of the die by suppressing wear of a die. A wire is rod made of steel comprising: 0.6 to 1.1%(mass percent) of C; 0.1 to 2.0% of Si; 0.1 to 1% of Mn; not more than 0.020%(excluding 0%) of P; not more than 0.020%(excluding 0%) of S; not more than 0.006%(excluding 0%) of N; not more than 0.03%(excluding 0%) of Al; and not more than 0.003%(excluding 0%) of O, the balance being Fe and inevitable impurities, and the wire rod has a pearlite structure in which an area ratio of a second-phase ferrite is not more than 11.0%, and a pearlite lamellar spacing is not less than 120 um. A method for producing a wire rod comprises: heating a steel product satisfying requirements for the above-mentioned chemical components to a temperature range of 900 to 1250 deg.C; hot rolling the steel product at a temperature of not less than 780 deg.C, and finish-rolling the steel product at a temperature not more than 1100 deg.C, thereby forming the steel product into a wire rod; water-cooling the wire rod to a temperature range of 750 to 950 deg.C, coiling the wire rod, and loading the coiled wire rod on a conveyor; cooling the wire rod at an average cooling rate of not less than 20 deg.C/sec within 20 seconds from loading of the wire rod, thereby lowering temperature of the wire rod to a minimum temperature value(T1) of 550 to 630 deg.C; and heating the wire rod, thereby raising temperature of the wire rod to a maximum temperature value(T2) of 580 to 720 deg.C that is higher than the minimum temperature value within 50 seconds from the loading of the wire rod.
Patent KR-20070118012-A (KR)
Title: Semiconductor device and apparatus and method for manufacturing the same
Inventor: KOIKE MASAHIRO
IPC: H01L23/34
Filed: 2007-06-05
Abstract: A semiconductor device is provided to fabricate a semiconductor device having a proper structure fabricated at a low cost by generally using heat spreaders of the same shape in semiconductor devices even when the heights of desired heat spreaders in a plurality of semiconductor devices are different. A semiconductor chip(10) is mounted on a substrate(12). A heat spreader(20) is formed on the semiconductor chip. Sealing resin(30) covers the semiconductor chip, interposed between the semiconductor chip and the heat spreader. The heat spreader has an opening(22) and does not contact with any one of the substrate and the semiconductor chip. The opening is formed roughly in the center of the heat spreader. The heat spreader has a flat plate shape.
Patent KR-20080107756-A (KR)
Title: Method for operating an auxillary heater full auto temperature control for a vechicle
Inventor: KWEON JAE SOON
IPC: B60H1/08
Filed: 2007-06-08
Abstract: An auxiliary heater driving method for a vehicle FATC is provided to control the driving flexibly by monitoring a battery voltage in winter. Winter season for driving an auxiliary heater is checked by the atmospheric temperature sensor of a vehicle(S10,S20). In winter, the auxiliary heater is driven according to driving speed calculated from a driving distance and speed of the vehicle(S30). The driving of the auxiliary heater is limited and a warning single is output if short distance driving generates frequently and if a batter voltage is lower than a threshold valve(S41-S45,S51-S55,S71).
Patent KR-20090003510-A (KR)
Title: Apparatus and method for attaching web-page interpretation information
Inventor: LEE YONG JAE
IPC: G06Q50/10
Filed: 2007-06-14
Abstract: A web page link information appending apparatus and method are provided to consider the intention of a user when a web page is changed according to link information, minimize damage of the original text arrangement and prevent link information appended to a web page from being limited by a user. A web page link information appending apparatus includes a link information storage unit storing link information on words expected to be appended to a web page, a web page analyzer(230) for analyzing a specific web page transmitted from a web page providing server to generate a link work list, a link information generator(240) for generating link information on each of words included in the link word list with reference to the link information, and a web page converter(250) for appending the link information generated by the link information generator to the specific web page.
Patent KR-20070119546-A (KR)
Title: Apparatus and method for detecting of signal using modified stack algorithm in multi input multi output system
Inventor: PARK SUNG WOO
IPC: H04L27/26
Filed: 2007-06-14
Abstract: A signal detection device using improved stack algorithm in a multi-antenna system and a method thereof are provided to realize high performance with low complexity, thereby effectively using a memory by overcoming limitations of memory usage of existing stack algorithm, consequently calculation complexity is effectively reduced. Receiving signals of each antenna and channel information of each user are arranged in maximum size order of the channel information of each user(301). A channel matrix configured by the arranged channel information of each user is decomposed into a unitary matrix and an upper triangular matrix(303). The number of candidate symbol strings is determined by using the decomposed upper triangular matrix(305). Receiving signals of each antenna in proportion to the upper triangular matrix are derived by using the arranged receiving signals of each antenna and the unitary matrix(307,309). A stack structure is expanded for the derived receiving signals, while the determined number of the candidate symbol strings is detected by using improved stack algorithm(311).
Patent KR-20080113954-A (KR)
Title: Manufacturing method for seasoning
Inventor: CHOI HYUN WOO
IPC: A23L27/10
Filed: 2007-06-26
Abstract: A manufacturing method for seasoning is provided to use culture medium and mushroom mycelium altogether by using natural seasoning as a culture badge of mushroom mycelium. A manufacturing method for seasoning comprises a step for cultivating a mushroom fungus after inoculating it mushroom fungus in a liquid culture medium; a step for obtaining precipitate by centrifuging the culture fluid; and a step for freeze-drying after washing the precipitate.
Patent KR-20090002330-A (KR)
Title: Korean undefloor heeting system made of yellow soil
Inventor: IM SE KYU
IPC: F24D3/12
Filed: 2007-06-28
Abstract: A yellow soil Korean under-floor heating system floor heater is provided to prevent the moisture penetration and to improve the damping property and the heat insulation by using the firming agent. A yellow soil Korean under-floor heating system floor heater comprises a slab layer(A); a polyethylene film(B) welded on the slab layer; an aluminum thermal reflection sheet(C) which is welded on the polyethylene film and is integrated; a yellow soil piece(E) of flat stone used for flooring a room over a Korean under-floor assembled on the aluminum thermal reflection sheet; a polyethylene low foaming sheet(D); and a Yellow soil floor heater layer(G).
Patent KR-20080005877-A (KR)
Title: Appaturus and method for home bts using packet network in mobile communication system
Inventor: HUR SUK KYUN
IPC: H04B7/155
Filed: 2007-07-10
Abstract: A home BTS(Base Transceiver Subsystem) device using a packet network in a mobile communication system and a method are provided to offer a mobile communication service to a portable terminal even in a particular hot spot or in a place where a backhaul network used as a dedicated interface of an existing mobile communication system is absent. A home BTS(375) provides a mobile communication terminal to a terminal by using a packet network as a backhaul network, sends a connection request message to a switching center, receives a channel allocation request message, performs a wireless channel allocation process with the terminal, and sends a channel allocation complete message to the switching center. A home BTS manager(350) provides information for offering the mobile communication service to the BTS(375). A security gateway protects a network of a mobile communication system from the packet network. The switching center transcodes voice data, prepares for a CODEC to be used by the terminal, receives the connection request message, and transmits the channel allocation request message to the BTS(375).
Patent KR-20090008503-A (KR)
Title: Solar cells having horizontal arrayed photovoltaic cells and manufacturing method of the same
Inventor: CHOI DAI KYU
IPC: H01L31/18
Filed: 2007-07-18
Abstract: A solar battery with horizontally arranged photovoltaic cells and a method for manufacturing the same are provided to enhance the light efficiency of the solar battery by positioning an optical absorption layer between the p layer and the n layer horizontally. A plurality of photovoltaic cells(12) are horizontally formed on a surface of a substrate(10). A plurality of photovoltaic cells include a p layer(13), an optical absorption layer(14) and an n layer(15). The optical absorption layer are formed to have the same optical bandgap or different optical bandgap. After the plurality of photovoltaic cells are formed, a first electrode(16) is formed in an upper part of the p layer. The second electrode(17) is formed in the upper part of the n layer.
Patent KR-20090011664-A (KR)
Title: Chemical amplification type positive resist composition and pattern forming method using the same
Inventor: KIM SUNG HOON
IPC: G03F7/039
Filed: 2007-07-27
Abstract: A chemically amplified positive photoresist composition, and a method for forming a resist pattern by using the composition are provided to improve resolution and coating property. A chemically amplified positive photoresist composition comprises a resin mixture comprising the repeating units represented by the formula 1 and the formula 2; a photoacid generator; and an organic solvent, wherein R1 and R2 are independently H, a C1-C10 linear or branched alkyl group or a C3-C10 cycloalkyl group; R3 is a C1-C10 linear or branched alkyl group or a C3-C10 cycloalkyl group; a1, a2, b and c are independently a number of 0-1; a1+a2+b+c=1; 0.30<=[(b+c)/(a1+a2+b+c)]<=0.34; and 0.01<=[c/(a1+a2+b+c)]<=0.2.
Patent KR-20090012694-A (KR)
Title: Fabricating method of atomic force cantilever and the same
Inventor: KIM SUNG HYUN
IPC: G01N13/00
Filed: 2007-07-31
Abstract: An atomic force cantilever and a method of manufacturing the cantilever are provided to form a passivation layer and then form a tungsten probe so as to maintain high sensitivity of the cantilever. A method of manufacturing an atomic force cantilever includes a step of forming a MOSFET(Metal Oxide Semiconductor Field Effect Transistor) using an SOI(Silicon On Insulator), a step of forming a passivation layer on the overall surface of the MOSFET and patterning the passivation layer to expose a gate of the MOSFET, a step of etching a lower silicon layer and an insulating layer of the SOI substrate, and a step of forming a tungsten probe(180) on the gate.
Patent KR-20090015298-A (KR)
Title: Mat for sale table of cigarette
Inventor: LEE MUN HYON
IPC: A47F7/00
Filed: 2007-08-08
Abstract: An advertising apparatus for promoting cigarette sale is provided to enable a customer to recognize advertising pictures or advertising letters for cigarette sale easily even at night, thereby promoting the cigarette sale. An advertising apparatus for promoting cigarette sale comprises the following units. A plurality of light emitting diodes are arranged in a row on a substrate(220). A light guide plate(200) including a plurality of light emitting diodes on both side boarders is placed on a bottom plate(100). A light blocking paper(230) is adhered to the both side boarders of the light guide plate in order not to expose the substrate and the light emitting diodes.
Patent KR-20090015364-A (KR)
Title: Method for preventing tcp-based denial-of-service attacks on mobile devices
Inventor: YOO IN SEON
IPC: H04B7/26
Filed: 2007-08-08
Abstract: A method of protecting a service deny attack based on TCP(Transport Control Protocol) on a mobile device for reducing the battery consumption is provided to defend a service denial attack type for wasting the battery power of a mobile virus. A base station(100) transmits a connection request packet in which the connection request flag is set to the specific port of the mobile device(200). The reception of the connection request packet transmitted from the base station is confirmed. A TCP state on a mobile device is transmitted from a first state to a second state. The mobile device transmits a connection request response packet in which the connection request and acknowledge confirm flag are set to the base station.
Patent KR-20090021843-A (KR)
Title: Ｐｃｂ보드의 방열구조
Inventor: LEE DONG YOUNG
IPC: H05K7/20
Filed: 2007-08-28
Abstract: 본 발명은 PCB보드에 실장되는 소자에서 발생하는 열을 방열시키는 PCB보드의 방열구조에 관한 것이다.  
     본 발명은 PCB보드와; 상기 PCB보드에 실장되는 발열소자에서 발생되는 열을 외부로 방출하도록 상기 발열소자의 하부에 홀형상으로 형성되는 적어도 하나의 방열부를 포함한다. 
     본 발명에 의하면, PCB보드의 하부에 형성된 홀에 의해 PCB보드에 실장된 소자에서 발생된 열이 효과적으로 방열될 수 있다. 따라서, 소자가 열에 대해 보호되므로, 소자의 오동작이나 파괴를 방지할 수 있으며, 이로 인해 회로의 신뢰성이 향상되는 이점이 있다.  
       
     PCB보드, 방열, 홀, 곡선
Patent KR-20090026962-A (KR)
Title: Automobile's wiring structure
Inventor: CHO JUNG HYUN
IPC: B60R16/02
Filed: 2007-09-11
Abstract: A wiring structure of vehicle is provided to prevent the inflow the water to the vehicle inside through a cable by closing a hole of connection wiring in case the water level is high. A wiring structure of vehicle comprises a first and second wirings(10,20) protecting the cable. One side is sealed up with the first wiring and the other side is sealed up with the second wiring. A connection wire ring(30) has a hole(32) protecting the cable, and is formed in one side. A switching member(40) opens and shuts the hole of the connection wire ring. The connection wire ring has the first and second wiring, and a first and second wiring connection part(34,35).
Patent KR-20080028332-A (KR)
Title: Holding device for holding object
Inventor: USUI HIROKAZU
IPC: B25J15/00
Filed: 2007-09-21
Abstract: A holding device for holding an object is provided to stably grip a work by interposing the work between a dividing section and an external pipe. A holding device for holding an object comprises a first member(10) having a cylindrical shape, and a second member(20) having a shaft(25) and a head(21). The first member is inserted into an opening of an object. The first member extends in the axial direction of the opening of the object. The first member includes a plurality of dividing sections divided by a plurality of notches that extend from one end of the first member. The head is disposed at one end of the shaft. Each dividing section is expanded by the head of the second member. When the first member and the second member are inserted into the opening of the object, the expanded dividing section holds the object. The first member is relatively displaced toward the second member.
Patent KR-20080031791-A (KR)
Title: Nuclear reactor fuel assemblies
Inventor: ALESHIN YURIY
IPC: G21C3/30
Filed: 2007-10-04
Abstract: A nuclear reactor fuel aggregate is provided to manage the extremely unstable fuel which has the increment of the burning and the core-inside residing time. A nuclear reactor fuel aggregate(16) includes an top nozzle, a bottom nozzle, a controlling bar guide tube, and a spacer grid. The controlling bar guide tube is extended in the size of the axis along the length between the top nozzle and the bottom nozzle, and is attached to a first terminal of the top nozzle and a second terminal of the bottom nozzle. The spacer grid is installed on the separated serial connection between the top nozzle and the bottom nozzle. The controlling guide tube is extended through the corresponding cell among a plurality of the cells. The spacer grid is mechanically or metallurgy coupled with the controlling bar guide tube at each cell of the spacer grid which is passed through by the controlling bar guide tube.
Patent KR-20090035091-A (KR)
Title: A portable multi-sterilizer with high brightness uv-led lamp, silver nanoparticle and photocatalyst
Inventor: KIM KUI KON
IPC: A61L2/00
Filed: 2007-10-05
Abstract: A portable complex sterilizer is provided, which sterilizes chopsticks and toothbrush while carrying them for a predetermined time. A portable complex sterilizer comprises: a chopstick receiving portion(10) which is installed to be opened and closed on the axis of a hinge; a toothbrush receiving portion(20); a sterilization unit(40) which is installed at one side of the chopstick receiving portion and is operated by a battery and in which a switch for applying the power source is set up in the top; a UV-LED lamp(42) which is installed at the sterilization unit to be adjacent to the brush of toothbrush and emits the ultraviolet ray according to the press of the switch; and a partition(50) in which the opening(52) is formed in the site in which the brush of toothbrush is located.
Patent KR-20090043726-A (KR)
Inventor: JEON SANG MIN
IPC: C08K3/04
Filed: 2007-10-30
Abstract: 본 발명은 탄소나노튜브를 함유한 자가치유 복합체의 개발 및 그 성능 평가 방법에 관한 것이다. 상세하게는 치유제, 촉매가 함유된 캡슐을 포함하는 고분자 복합체를 합성하여 균열에 의해 손상을 입었을 때 캡슐이 깨지면서 내부의 촉매 물질이 흘러나와 지지체에 섞여 있던 치유제와 반응을 하여 균열을 복구하는 것이다. 
     특히, 지지체에 탄소나노튜브를 포함시켜 복합체 자체의 기계적 강도가 증가되고 전기전도성을 갖게 될 뿐만 아니라, 마이크로캡슐에도 탄소나노튜브를 함께 넣어 발생한 균열이 복구될 때 기계적 강도만을 회복하는 것이 아니라 자가치유 복합체의 전기전도성도 회복하게 된다. 또한 기존의 강도 측정법 이외에 수정진동자 미량저울과 마이크로캔틸리버를 이용하여 자가치유 복합체의 회복 메카니즘과 회복 속도에 대한 평가도 할 수 있다. 
       
     탄소나노튜브, 자가치유
Patent KR-20090043922-A (KR)
Inventor: KIM KI JOON
IPC: H01L27/115
Filed: 2007-10-30
Abstract: 본 발명은 상변화 메모리 소자에 관한 것이다. 본 발명에서는, 스위치 영역과 연결된 하부 전극 콘택층; 상기 하부 전극 콘택층 상에 형성된 상변화층; 상기 상변화층을 둘러싸며 형성된 절연층; 및 상기 상변화층 및 상기 절연층 사이에 형성된 중간층;을 포함하는 상변화 메모리 소자를 제공한다.
Patent KR-20090049148-A (KR)
Inventor: JANG BONG GUN
IPC: A23L19/00
Filed: 2007-11-13
Abstract: 본 발명은 블랙쵸크베리 열매를 압착하여 주스를 추출하는 제1단계, 부산물인 껍질에 알코올을 가하여 폴리페놀을 추출하는 제2단계, 제1단계 및 제2단계에서 추출된 용액을 섞어서 디스크 디캔테이션으로 1차 여과 정제하는 제3단계, 상기 여과된 조추출물을 분리 컬럼에 하적하여 폴리페놀을 부착 및 농축하는 제4단계, 및 상기 부착 및 농축된 폴리페놀을 에탄올로 탈착하는 제5단계를 포함하여 구성되는 것을 특징으로 블랙쵸크베리 열매로부터 유효물질인 폴리페놀을 고순도로 분리하는 방법을 제공한다.  상기한 구성의 본 발명에 의하면 블랙쵸크베리 유효물질인 폴리페놀 및 안토시아닌을 불순물 없이 고순도로 대량으로 분리할 수 있는 이점이 있다. 
       
     블랙쵸크베리, 안토시아닌, 폴리페놀, 고체상추출
Patent KR-20090049406-A (KR)
Inventor: SONG JI YOUNG
IPC: C08F20/10
Filed: 2007-11-13
Abstract: 본 발명은 포토리소그래피 공정에서 노광원 흡수 목적으로 피식각층과 포토레지스트막 사이에 위치하는, 환형 에스테르기를 포함하는 고분자 중합체, 상기 고분자 중합체를 포함하는 유기반사방지막 조성물, 및 상기 유기반사방지막 조성물을 이용하여 제조된 유기반사방지막에 관한 것으로서, 유기반사방지막의 식각률을 개선하고, 유기반사방지막의 형성을 용이하게 할 뿐만 아니라 기판과의 접착력을 개선하는 역할을 한다. 
       
     유기반사방지막, 환형 에스테르기
Patent KR-20090050871-A (KR)
Inventor: LEE DONG YEON
IPC: G03F7/20
Filed: 2007-11-16
Abstract: 본 발명은 고진공의 진공챔버 내의 원통금형 스테이지에 장착된 원통금형 기판을 회전시키면서 전자빔(E_beam)을 조사하여 원통금형 기판에 나노급 고분해능으로 단시간 내에 많은 양의 연속 패턴을 형성할 수 있게 하고, 원통금형 스테이지(진공챔버)의 나노급 정밀도의 수평 이송과 Z축, θx, θy 능동 자세 제어를 통하여 노광기 자체의 기계적 위치 제어 오차를 최소화시킬 수 있는 노광기 및 노광 방법에 관한 것이다. 본 발명에 따른 노광기는, 진공 챔버의 내부에 원통금형 스테이지를 장착하고, 상기 원통금형 스테이지에 결합된 원통금형을 움직이면서 상기 원통금형에 빔을 조사하여 패턴을 형성함으로써 일정 면적에 나노급 연속 패턴을 형성할 수 있다.  
       
     원통금형 기판, 전자빔(E-beam), 나노 노광기, 상대 이송, 능동 자세 제어
Patent KR-20090050883-A (KR)
Inventor: CHOI SUNG HO
IPC: F24C7/06
Filed: 2007-11-16
Abstract: 본 발명은 전자레인지에 관한 것이다.  본 발명에서는, 히터의 히터열을 조리실로 전달하기 위한 다공부에 보강비드가 구비된다.  따라서 본 발명에 의하면, 히터의 히터열에 의하여 다공부가 열변형되는 현상이 방지되는 이점이 있다.  
       
     전자레인지, 다공부, 보강비드
Patent KR-20090051873-A (KR)
Inventor: HAN KYUNG SIK
IPC: H04B1/40
Filed: 2007-11-20
Abstract: 소형 프로젝터와 소형 프로젝터의 사업자별 이동 통신 단말기 인식 방법 및 그 이동 통신 단말기가 제공된다. 본 발명에 따른 소형 프로젝터의 사업자별 이동 통신 단말기 인식 방법은, 이동 통신 단말기에 탈부착 가능한 형태로 연결되는 소형 프로젝터의 사업자별 이동 통신 단말기 인식 방법으로서, 소형 프로젝터가 이동 통신 단말기와 연결되었음을 인지하면, 이동 통신 단말기로 사업자 데이터를 전송하는 제1 단계와, 소형 프로젝터가 이동 통신 단말기로부터 사업자 데이터 일치 확인 메시지 응답이 있는지 판단하는 제2 단계와, 제2 단계에서, 이동 통신 단말기로부터 사업자 데이터 일치 확인 메시지 응답이 있으면, 소형 프로젝터가 파워 온 프로세스(Power On Process)를 진행하는 제3 단계를 포함하여 구성된다.  
       
     프로젝션, 프로젝터, 사업자 인증
Patent KR-20090055061-A (KR)
Title: Modeling and parameter test method for wind farm
Inventor: CHOI HEUNG KWAN
IPC: F03D7/00
Filed: 2007-11-28
Abstract: A modeling and interpretation parameter testing method of a wind power generation plant is provided to enable modeling of the wind power generation plant by performing an artificial disturbance. A modeling and interpretation parameter testing method of a wind power generation plant comprises the steps of: testing the wind power generation plant; performing a site test concerning the standard aero-generator by generating an artificial disturbance(S310); performing the modeling and the model constant number induction which divides and integrates the inertia constant number according to characteristics(S312); and obtaining and verifying effective data and response by setting up a measurement apparatus continuously in the system contact point of the wind power generation plant(S318).
Patent KR-20090055386-A (KR)
Title: A living action detecting system in house
Inventor: JEOUNG BO KOUNG
IPC: G08C17/00
Filed: 2007-11-28
Abstract: A living activity detecting system in a house is provided to stabilize a sensor network by performing stable power supply through a sensing unit on a power outlet. A sensor network is composed of an on-off sensing unit(600) for a plurality of appliances and a body detection unit(300). A home platform(400) communicates a sensor network and transmits the signal sensed with the sensor network to a remote management unit(500). The power switch on/off sensing device(100) is mounted on a power outlet of a household, and the sensor network comprises a television on/off sensing device and remote control operating sensing device(200). The sensor network detects a residence active signal of occupant by using the body detection unit.
Patent KR-20090057542-A (KR)
Title: Touch panel display apparatus
Inventor: YU BYUNG CHUN
IPC: G02F1/133
Filed: 2007-12-03
Abstract: A touch panel display apparatus is provided to largely reduce the number of infrared ray light emitting diodes, thereby reducing power consumption and product price. A touch sensing unit(130) comprises a plurality of infrared ray light emitting diodes(132), an infrared ray reflecting tube(150) and a plurality of image sensors. The infrared ray reflecting tube comprises a plurality of infrared ray light emitting diodes. Light emitting areas(154) and light non-emitting areas(152) are uniformly formed on a surface facing an upper surface of a liquid crystal panel so that an infrared ray applied from the infrared ray light emitting diodes is uniformly applied to an upper side plane of a liquid crystal panel.
Patent KR-20090062506-A (KR)
Title: Automatic toilet
Inventor: CHOI HEE RACK
IPC: E03D5/00
Filed: 2007-12-13
Abstract: An automatic toilet is provided to discriminate urine and feces by using the difference of average time taken for excreting urine and feces. An automatic toilet comprises a sensor which is attached to the floor to sense objects or person. If the user stepping on the sensor leaves without flushing after easing nature, the sensor automatically flushes the toilet. Even when the user stands on the deviated position, the sensor can discriminate urine and feces using the difference of average time taken for excreting urine and feces.