baber/WOPTO huggingface dataset:
Patent KR-20080004148-A (KR)
Title: Auto twister
Inventor: KIM JONG GYU
IPC: A63B22/14
Filed: 2006-07-05
Abstract: An automatic waist exercise apparatus is provided to stimulate the belly, the side, and the waist naturally by applying centrifugal force and inertial force by a rotating plate and a seat plate when a user sits on the seat plate. An automatic waist exercise apparatus(100) is composed of: a base plate(1) having support plates(11,11',11") extended in three directions with keeping balance, a moving caster installed at one of the support plates, protruded support units(13) installed at the bottom of the rest support plates to function as a stopper, and a rotating device mounted on the upside; a rotating plate(2) fixed to a shaft(15') of a speed reducer and rotating with keeping the predetermined distance from the center by installing a seat plate; a case(3) covering a gap between the base plate and the rotating plate; safety handles(4,4') set up at both sides of the front end of the base plate; and a control unit(5) installed on the upper end of the safety handle to select and control various functions such as rotational speed, rotational direction, and rotation time of the rotating plate.
Patent KR-20070073567-A (KR)
Title: Subband synthesis filtering process and apparatus
Inventor: HUNG CHIH WEI
IPC: H04N7/24
Filed: 2006-07-05
Abstract: A sub-band synthesis filtering process and an apparatus therefor are provided to actually improve efficiency for decoding MP3(MPEG(Moving Picture Experts Group) layer) audio frames by integrating frequency inversion in sub-and synthesis filtering processes. A processor(41) processes signals of the ith set among signals of M sets. The processor(41) includes a DCT(Discrete Cosine Transform) module(411) and a generating module(412). The DCT module(411) converts N sub-band sample signals of the ith set into N converted vectors on the basis of DCT. The generating module(412) generates N PCM(Pulse Code Modulation) signals on the basis of the N converted vectors.
Patent KR-20080004676-A (KR)
Title: Lock knob for door
Inventor: LEE JI HEON
IPC: E05B85/12
Filed: 2006-07-06
Abstract: A lock knob for a door is provided to improve safety by enabling a passenger to recognize lock and unlock state of a door latch easily through colors displayed on an indication window, by rotating a knob body as surrounding an indication panel. A hollow knob body(100) is prepared in a handle housing in a door, and locks and unlocks a door latch according to rotation by being connected to a latch cable, and has a circular indication window(110). An indication panel(200) is accommodated in the knob body, and is fixed to the handle housing, and is colored with two colors on a circular panel, and displays different colors on the indication window according to the rotation of the knob body.
Patent KR-20080004768-A (KR)
Title: Method for creating short messages with specific language
Inventor: KWON HYUK
IPC: H04W4/12
Filed: 2006-07-06
Abstract: A method for creating text messages with a specific language is provided to generate and display the text messages with the specific language by downloading an application for text messages with a desired specific language, so that users having mobile terminals supporting only the input of languages different from each other can easily transceive the text messages with the specific language. A method for creating text messages with a specific language comprises the following steps of: downloading an application for the text messages with a specific language from a specific language SMS(Short Message Service) server(S10); displaying an initial screen for generating the text messages with the specific language when an application execution key is selected(S12); displaying dividedly a specific language input soft key screen, a specific language input screen, and a specific function key screen if a soft button for generating the text messages with the specific language is selected(S14); displaying a specific language string on the specific language input screen and generating data on the text messages with the specific language when the specific language input soft key and the specific function key for generating the text messages with the specific language are selected(S16); and transmitting the generated data to the outside when the specific function key for transmitting the text messages with the specific language(S18).
Patent KR-20080005320-A (KR)
Title: A polyhedral playing card for rehabilitation
Inventor: KIM HYUN JEEN
IPC: A63F1/02
Filed: 2006-07-08
Abstract: A polyhedral card set is provided to increase the tactile sensation of a user by cubically expressing a picture of a rehabilitation block in relief. A polyhedral card set is formed by printing pictures(3), numbers, or words(4) marked on the existing card, on one surface of a polyhedron. The blind rehabilitates senses and perception functions by marking Braille(5) for rehabilitation. Materials for the polyhedral card are enabled to be molded in various shapes such as plastic, wood, stone, metal, or polymer synthetic materials. The pictures, numbers, or words are formed on one surface of a polyhedron by printing, carving, casting, and forging, or the printed pictures, numbers, or words are attached. The Braille is formed by casting and carving.
Patent KR-20080006148-A (KR)
Title: Spatial modulation method in multiple-input multiple-output system and transmitting and receiving apparatus using the same
Inventor: AHN CHANG WOOK
IPC: H04L27/32
Filed: 2006-07-11
Abstract: An SM(Spatial Modulation) method in an MIMO(Multiple Input Multiple Output) system and a transceiving device using the method are provided to activate only one transmission antenna, thus the synchronization of transmission antennas is unnecessary, consequently transmission efficiency per unit hertz can be increased while inter-channel interference is removed from a receiving device. A transmission device comprises as follows. A separator(211) inputs a signal including a lot of bit information, and separates the signal into an antenna bit block and a signal modulation bit block. A signal modulation coder(213) codes the signal modulation bit block into a signal modulation. An antenna index coder(212) codes the antenna bit block into an antenna index. Plural antennas(220,230) consist of an active antenna for sending the modulated signal during unit time and an inactive antenna which does not transmit the signal during the unit time.
Patent KR-20080013110-A (KR)
Title: Device and method for photographing image in wireless terminal
Inventor: SHIN DAE KYU
IPC: H04N5/225
Filed: 2006-08-07
Abstract: An apparatus and a method for photographing an image in a portable terminal are provided to obtain a high-definition picture when a user wants without having influence on a video while photographing the video and inducing to purchase a dual camera phone, the portable terminal with at least two camera units. An apparatus for photographing an image in a portable terminal comprises a first camera unit(141), a second camera unit(143), a control unit for the first camera unit(142), a control unit for the second camera unit(144) and a control unit(110). The first camera unit photographs a video in the video mode of the portable terminal. The second camera unit photographs a picture in the video mode. The control unit for the first camera unit controls the first camera unit to photograph the video in the video mode. The control unit for the second camera unit controls the second camera unit to photograph the picture in the video mode. The control unit controls the control unit for the first camera unit to photograph the video in the video mode and controls the control unit for the second camera unit to photograph the picture in the video mode, and stores the video and the picture photographed in the video mode.
Patent KR-20070018705-A (KR)
IPC: B41J15/04
Filed: 2006-08-08
Abstract: 롤지 프린터는, 메인 유닛과, 이 메인 유닛의 전방에 부착되어 전방으로 개폐되는 가동형 커버 유닛을 구비하고, 가동형 커버 유닛을 개방하는 것은 롤지 장전 개구를 프린터의 메인 유닛 내부의 롤지 구획부로 개방하여, 롤지를 프린터의 전방으로부터 교체할 수 있다.  롤지 크기 검출 개구의 검출 레버의 검출 단부는 롤지 구획부내로 돌출한다.  롤지의 외경이 감소하는 경우, 롤지 코어의 중심에 있는 구멍은 축소된다.  롤지내의 구멍이 검출 레버의 검출 단부가 구멍에 들어가는 위치로 축소되는 경우, 롤지의 근방 단부가 검출된다.  가동형 커버 유닛을 개방하는 경우, 링크 레버는 수축 위치로부터 전진 위치로 전방으로 이동하여, 링크 레버의 접촉 플레이트부는 검출 단부상에서 밀어서, 검출 단부를 롤지 구획부 내부로부터 수축시킨다.  이에 따라, 롤지는 검출 레버의 검출 단부로부터 간섭 없이 효과적으로 교체될 수 있다.
Patent KR-20060106785-A (KR)
Inventor: CHANG CHAN HUI
IPC: E04B2/86
Filed: 2006-08-21
Abstract: 본 발명은 단열벽체의 시공시 단열벽체를 형성시키는 내/외측 거푸집 중에서 벽체 내측면을 형성시키는 거푸집이 벽체 완성 후 마감재의 역할을 하도록 함으로써, 별도의 단열재 시공작업과 마감재설치 작업을 생략하여 공사기간을 단축시킬 수 있게 하는 공동주택의 단열벽체 시공방법과, 거푸집 겸용으로 사용되는 마감재에 방수층을 형성시켜 실내 벽체에서 결로현상 발생을 방지할 수 있게 한 단열벽체 시공을 위한 거푸집 겸용의 마감재에 관한 것이다. 
     종래의 단열벽체 시공방법은 그 공정 수가 많고 복잡하여 단열벽체를 시공하는 많은 공사기간이 소용되는 문제점과, 콘크리트에 포함된 수분이 지속적으로 마감재의 내부로 침투되어 완성된 벽체의 표면에 결로가 발생되고 심한 경우 도배지까지 오염시키는 문제점이 있었던 바, 본 발명은 시공되는 단열벽체(1)의 내부면을 형성시키는 마감재(3) 즉, 단열재(30)의 외주면에 설치되는 보강재(32)와, 단열재(30)의 상/하면에 설치되는 마그네슘보드(31)와, 보강재(32)의 외면 둘레에 설치되는 방수층(33)이 형성되는 마감재에서 타설되는 콘크리트와 접하는 면에 방수층(34)을 형성시키는 방수층형성공정(11)과; 상기 방수층(34)의 표면에 콘크리트에 함유된 수분을 흡수하고 이를 마감재(3)의 하부로 유도하여 배출시킬 수 있게 하는 수분유도층(35)을 설치시키는 수분유도층설치공정(12)과, 이러한 공정을 마친 마감재(3)와 외부거푸집(2)을 통상의 방법에 따라 설치시키는 거푸집설치공정(13)과; 설치된 거푸집의 내부로 콘크리트를 타설시키는 콘크리트 타설공정(14)과; 양생이  완료된 단열벽체(1)로부터 외부거푸집(2)만을 제거하는 외부거푸집제거공정(15)을 거쳐 단열벽체(1)를 시공함으로써, 별도의 단열재 시공작업과 마감재설치 작업을 생략할 수 있게 하여 공사기간을 대폭적으로 단축시킬 수 있는 효과와 아울러 거푸집 겸용으로 사용되는 마감재에 방수층 및 수분유도층이 형성되어 실내 벽체에서 결로현상이 발생되는 것을 미연에 방지할 수 있는 효과가 있는 것이다.  
       
     단열벽체, 거푸집, 방수층
Patent KR-20080019075-A (KR)
Title: Image codec system, image encoding method, and image decoding method for supporting spatial random access
Inventor: MOON JOO HEE
IPC: H04N19/176
Filed: 2006-08-22
Abstract: An image codec system, an image encoding method, and an image decoding method are provided to improve the encoding efficiency and the transmitting efficiency to use a limited transmission channel efficiently, and display a high-resolution image even through a low-resolution display device such as a portable terminal. An image codec system comprises a first encoding server(110) and an image decoding apparatus(120). The first encoding server sequentially encodes blocks constituting each of image fragments in two or more scan directions having different starting points to generate two or more bit streams for each of the image fragments, and then extracts one of the two or more bit streams for each of the image fragments, which has a region overlapping a target image, based on positional information of the target image. The image decoding apparatus decodes the bit stream, which is transmitted from the first encoding server, in the scan direction to reconstitute the target image.
Patent KR-20080024646-A (KR)
Inventor: KIM KI JOON
IPC: H01R13/03
Filed: 2006-09-14
Abstract: A dead break type connecting apparatus is provided to achieve a small size and easy handling, and secure a sufficient installation space, by improving the materials and structures of an elbow connector and an insulation plug. In an elbow-shaped connector(10), a bushing join part(A) and a cable join part(B) cross each other orthogonally. An insulating plug join part(C) penetrates a space, where the bushing join part and the cable join part are contacted with each other, toward an outside of the elbow connector. A test point(64) is formed in the center of an insulation plug, which is joined to the insulation plug join part. The test point has a hexagon-shaped wrench groove(63).
Patent KR-20070031256-A (KR)
IPC: D05B35/06
Filed: 2006-09-14
Abstract: 장식용 합사 장치는 지지부(46)에 회전 가능하게 지지된 장식용 합사 휠(85)을 포함한다.  장식용 합사 휠(85)의 구동은 기계 제어장치에 의해 제어 가능한 구동 장치(15)에 의해 이루어진다.  구동 트레인은 모터로부터 스플라인 샤프트(19), 커플러휠(51), 기어휠(53), 베벨 기어(79), 베벨 기어(81), 톱니 벨트 풀리(도시되지 않음), 톱니 벨트(87)를 지나 장식용 합사 휠(85)로 안내된다.  커플러휠(51)은 바늘 로드(31)에 의해 결합될 수 있는 커플러(49)의 일부이다.  기계 제어장치에 의해 제어 가능하고 전환 로드(29)를 구비한 복귀 장치(21)는 분리에 이용된다.  코드 패턴을 스티치한 후 코드(95)가 커팅될 수 있도록 하기 위해, 커팅 장치(84)는 전환 로드(29)에 의해 로드(98)를 통해 작동될 수 있다.  코드 패턴을 스티치 한 후 이동 가능한 커터(88)는 복귀 장치(21)에 의해 개방되고, 코드(95)가 판 스프링(24) 아래에 놓이고 클램핑되도록 스티치 기계의 게이트가 이동된다.  복귀 장치(21)에 의한 폐쇄 후에 가동 커터가 고정 커터(86)를 향해 이동되면, 핀(26)이 판 스프링(24)에 가압되고 클램핑 효과를 강화시킨다.  이로써, 이어지는 패턴을 스티치 하기 위한 새로운 코드 시작부가 고정된다.  
       
     복귀 장치, 커터, 판 스프링, 코드, 전환 로드
Patent KR-20080027520-A (KR)
Title: Disassembling and combination type towing hook for vehicle
Inventor: YOO DONG KEUN
IPC: B62D25/08
Filed: 2006-09-25
Abstract: A disassembling and combination type towing hook for a vehicle is provided to shorten the disassembling and assembling time of a second hook body, and to reduce the loading time by screwing a compatible hook body with a screw and disassembling and assembling a female screw from/with a male screw of a cylindrical part. A socket(13), projected to a bracket(11) at a front end of a side member(10), is formed to pass through a female screw(27). A compatible hook body(14) whose one end is formed with a ring is assembled and disassembled with/from the socket. A cylindrical part(21) whose diameter is larger than an external diameter of the socket is formed at a projection of the socket, and a male screw(22) is formed on an outer surface of the cylindrical part. One end of a second hook body(24) is formed with a ring and the other end of the second hook body is formed with a combining part(26) formed with the female screw. The female screw is jointed with the male screw. The cylindrical part is welded at the bracket. The cylindrical part is assembled with the socket.
Patent KR-20080029557-A (KR)
Title: Pd nanowire hydrogen sensors and its manufacturing method
Inventor: OH HYUNG SEUK
IPC: G01N27/12
Filed: 2006-09-29
Abstract: A palladium nanowire hydrogen sensor and a manufacturing method thereof are provided to increase efficiency of the sensor by arranging a collected nanowire on a substrate and connecting the substrate with an electrode pattern. A palladium nanowire hydrogen sensor comprises a substrate(21) on which a plurality of external electrodes patterns are formed, a palladium nanowire(25) arranged in a predetermined position on the substrate, and bonding electrode patterns(27a,27b) connecting the palladium nanowire with the external electrode patterns.
Patent KR-20080032525-A (KR)
Title: Composition containing extracts of houttuynia cordata thunb. or lignan compounds, dihydroguaiaretic acid, isolated from there for the prevention and treatment of cardiovascular disease
Inventor: JEONG TAE SOOK
IPC: C07C43/275
Filed: 2006-10-10
Abstract: A composition for preventing or treating cardiovascular diseases is provided to prevent or treat hyperlipidemia, coronary artery heart disease, atherosclerosis and myocardial infarction caused by oxidation of LDL or synthesis and accumulation of cholesteryl esters. A composition for preventing or treating cardiovascular diseases comprises dihydroguaiaretic acid, a lignan compound represented by the following formula 1, as an active ingredient. The compound is obtained by extraction and isolation from Houttuynia cordata thunb. Particularly, the method for preparing the compound represented by formula 1 comprises the steps of: crushing dried Houttuynia cordata thunb., and extracting the crushed product with a solvent; adding water to the extract of the preceding step and fractioning the water suspension sequentially with n-hexane, chloroform and ethyl acetate to obtain a soluble extract; and separating and purifying the soluble extract.
Patent KR-20070076388-A (KR)
Title: Compression molded preparation
Inventor: ONUKI YOICHI
IPC: A61K31/195
Filed: 2006-11-06
Abstract: A small sized compression molded preparation with high quality containing at least 20 wt.% of L-cysteine and at least 30 wt.% of an ascorbic acid is provided to maximumly provide the therapeutic effect on wrinkles, freckles and pigmentation. The compression molded preparation comprises L-cysteine or a salt thereof, an ascorbic acid or a salt thereof, 7.5-25 wt.% of a plurality of crystalline cellulose and 1-20 wt.% of at least one highly swelling polymer selected from the group consisting of lowly substituted hydroxypropylcellulose, croscarmellose sodium and crospovidone, wherein the content of the L-cysteine or the salt thereof is 20-40 wt.% when being converted into the L-cysteine and the content of the ascorbic acid or the salt thereof is 30-70 wt.% when being converted into the ascorbic acid. The preparation further comprises at least one ingredient selected from the group consisting of a water-soluble polymer, hard silica, saccharide, sugar alcohol, starch, talc, and magnesium stearate.
Patent KR-20070051689-A (KR)
Inventor: MIYUKI OKADA
IPC: G06T7/00
Filed: 2006-11-10
Abstract: 본 발명은 화상 처리장치에 관한 것으로, 보다 상세하게는 원화상을 취득하는 화상 취득부와; 상기 화상 취득부가 취득한 원화상의 해상도를 변환하여, 서로 다른 해상도를 갖는 복수의 축소 화상을 생성하는 해상도 변환부와; 상기 해상도 변환부에 의해 생성되는 복수의 축소 화상을 템플레이트 메칭으로 처리하여, 상기 축소 화상으로부터 상기 템플레이트에 해당하는 특정 피사체의 촬상 화상의 영역을 검출하는 검출부와; 상기 검출부에 의해 얻어진 검출결과를 처리하여, 상기 원화상 위에서 특성 피사체의 촬상 화상의 영역을 검출하는 검출결과 처리부를 포함하며, 상기 검출부는 해상도가 단계 순차적으로 변화함에 따라 복수의 축소 화상을 처리하여 특정 피사체의 촬상 화상 영역을 검출하는 화상 처리장치에 관한 것이다. 
       
     촬상 장치, 중앙처리유닛, 이미지 센서, 카메라 처리부, 화상 RAM, 얼굴 검출부, 해상도 변환부, 컨트롤러, 화상 메모리, 얼굴 검출 코어, 화상 표시부, 기록 매체, 기록 재생 장치.
Patent KR-20080044707-A (KR)
Title: Method and apparatus for encoding and decoding audio/speech signal
Inventor: OH EUN MI
IPC: G10L19/00
Filed: 2006-11-17
Abstract: A method and an apparatus for encoding and decoding an audio/speech signal are provided to encode and decode all of the speech signal, the audio signal, and a signal in which the speech signal and the audio signal are mixed efficiently. A domain converting unit(400) converts an input signal from a time domain to a frequency domain by the first conversion type and the second conversion type. A frequency domain encoding unit(430) encodes the signal converted by the first conversion type in the frequency domain by using the signal converted by the second conversion type.
Patent KR-20080047202-A (KR)
Title: Multiplex duplication method and apparatus of the suspenders which possesses
Inventor: KIM JONG SOO
IPC: A41F9/02
Filed: 2006-11-24
Abstract: A triple overlapping method of a band or a shoulder strap and an implement using the same are provided to allow reducing the length of the band or shoulder strap to one-third and to expand use range by increasing the control width of the band or shoulder strap. A triple overlapping implement of a band or a shoulder strap comprises: a length adjusting ring(220a) comprising a basic frame having an inner space and an assistant frame dividing the inner space into one establishment space and the other establishment space; a fixation ring(210a) which is composed of the borders to form an inner space; a moving ring; and a band(230).
Patent KR-20080049320-A (KR)
Title: A method of hydrogenation of conjugated diolefin polymers
Inventor: RYU JIN YOUNG
IPC: C08F8/04
Filed: 2006-11-30
Abstract: A method for hydrogenating a conjugated diene polymer, and a conjugated diene polymer hydrogenated by the method are provided to improve the efficiency of hydrogenation even by using a small amount of a catalyst. A method for hydrogenating a conjugated diene polymer comprises the steps of preparing a homopolymer of a conjugated diene monomer or a copolymer of a vinyl aromatic monomer and a conjugated diene monomer by using an organolithium compound as an initiator; treating the obtained living polymer with hydrogen to inactivate the terminal of the polymer of copolymer; and adding at least one metallocene compound selected from the compounds represented by the formula 1 or 2 and hydrogen to the obtained polymer or copolymer to hydrogenate the double bond moiety of the conjugated diene polymer, wherein R1 to R16 are independently H, a halogen atom, OH, a thio group, an amine group, a silyl group, a phosphine group, a C1-C20 alkyl group, a cycloalkyl group, a haloalkyl group, an alkylsilyl group, a silylalkyl group, an alkylthio group, an alkylamine group, a C6-C40 aryl group, a haloaryl group, an arylalkyl group, an alkylaryl group, an arylsilyl group, a silylaryl group, an arylalkylsilyl group, an aryloxy group, an arylthio group or an arylamine group; X1 and X2 are independently a C1-C8 alkyl group, an alkoxy group, a C6-C8 aryl group, an aryloxy group, an arylalkyl group, a cycloalkyl group or a halogen atom; and Y1 and Y2 don't exist or are an ether group, an thio group, an amine group, a silyl group, a phosphine group, a C1-C10 alkyl group or an aryl group.
Patent KR-20070069021-A (KR)
Title: Electrophotographic photoconductor
Inventor: SUZUKI SHINJIROU
IPC: G03C1/91
Filed: 2006-12-07
Abstract: Provided is an electrophotographic photoconductor, which inhibits generation of a secondary aggregate in an under coating layer, and thus prevents generation of image defects including black spots or fogging. The electrophotographic photoconductor comprises an undercoating layer and a photoconductive layer stacked successively on a conductive substrate, wherein the undercoating layer is based on a resin polymerized from a mixture containing 0.1-10 mol% of an aromatic dicarboxylic acid and at least two dicarboxylic acids other than the aromatic dicarboxylic acid, at least two diamine compounds and a cyclic amide compound, and contains a metal oxide, the resin having an acid number and hydroxyl number of 6.0 KOH mg/g or less.
Patent KR-20080052995-A (KR)
Title: Impact beam of door for automobile
Inventor: OH HYUCK JIN
IPC: B60J5/04
Filed: 2006-12-08
Abstract: An impact beam of an automobile door is provided to minimize injury of a driver and passengers by minimizing droop deformation due to shock at the time of side surface collision generation, thereby improving stability. An impact beam(2) of an automobile door comprises a droop preventing part(10), first and second side supporting parts(11,12) and a load supporting part(13). The droop preventing part of U shape is formed in the middle part of the impact beam. The droop preventing part includes the first and second side supporting parts bent in both sides of the middle part of an impact beam body, and the load supporting part supporting load in an end of the first and second side supporting parts.
Patent KR-20080055176-A (KR)
Title: Apparatus for aligning glass substrate of rubbing stage, and method thereof
Inventor: SHIN IN SOO
IPC: G02F1/13
Filed: 2006-12-14
Abstract: An apparatus for aligning a glass substrate of a rubbing stage, and a method thereof are provided to prevent the optical axis of the alignment layer from distorting by arranging the glass substrate distortion precisely, and to improve the productivity and operating ratio of the rubbing unit by preventing error of the glass substrate alignment. A rubbing stage(140) receives and fixes the glass substrate safely in order to perform rubbing of the glass substrate. An alignment pin(151) aligns the position of the glass substrate for receiving on the rubbing stage. A driving unit(160) is installed at the lower part of the rubbing stage, is coupled with the alignment pin. The alignment pin is transferred to vertical or horizontal direction by the driving unit. The alignment pin compensates the position of the glass substrate by rising-up to vertical direction or moving along the horizontal direction through a hole formed on the rubbing stage. After compensating the position of the glass substrate, the alignment pin returns the glass substrate to the original position.
Patent KR-20080056052-A (KR)
Title: Fuel cell with muffler
Inventor: JEON IN YOUL
IPC: H01M8/04
Filed: 2006-12-15
Abstract: A fuel cell equipped with a muffler is provided to reduce the noises periodically generated or emitted from an air pump by using a muffler having a simple structure. A fuel cell equipped with a muffler comprises: an air supply section(10) for supplying air; an electricity generating section(20) for generating electricity through electrochemical reactions between a fuel and the air; and a muffler(30) coupled to the air suction port of the air supply section, and including a straight pipe through which the air passes and a branched pipe branched from the straight pipe and closed at the end thereof.