baber/WOPTO huggingface dataset:
Patent KR-900004826-B1 (KR)
Title: Intermittent drive controller for windshield wiper motor
Inventor: TAKAISHI YUKIO
IPC: H02P29/00
Filed: 1986-12-10
Granted: 1990-07-07
Abstract: The drive controller comprises a wiper switch for turning the drive controller on and off and a motor switch operated in a linked relationship with the rotation of the motor so as to be changed over between two terminals. The motor switch completes a circuit when changed over to the first terminal and produces an operation signal for the motor. The motor switch completes a circuit when changed over to the second terminal and produces a pause signal for the motor. A drive command circuit is responsive to the wiper switch and the motor switch for producing a command signal when the wiper switch is turned on and after a certain period of time has passed from the moment at which the switch is changed from the first to the second terminal.
Patent KR-910000908-B1 (KR)
Inventor: KROMREY ROBERT V
IPC: B29C70/06
Filed: 1986-12-30
Granted: 1991-02-18
Abstract: 내용 없음.
Patent KR-890003811-B1 (KR)
Title: Process for preparing n-(2-pyrimidyl) piperazinyl derivatives
Inventor: CHUNG YONG-HO
IPC: C07D401/14
Filed: 1987-05-27
Granted: 1989-10-05
Abstract: A process for preparing N-(2-pyrimidyl) piperazilyl alkyl azaspyro alkanedione of formula (I) and its salt comprises (a) reacting a cpd. of formula (II) with a cpd. of formula (II) in the presence of triethyl amine or diethyl amine to produce a cpd. of formula (IV), and (b) reacting the cpd. (IV) with a cpd. of formula (V).  In the formulas, M is an alhali metal such as Na or K; R is a lower alkyl. (I) and its salt are used as a neuroleptic.
Patent KR-900006598-B1 (KR)
Title: Antilock braking system for vehicle
Inventor: HOLROYD TREVOR J
IPC: B60T17/18
Filed: 1987-10-16
Granted: 1990-09-13
Abstract: An antilock braking system for a vehicle comprising at least one brake pad arranged to move into frictional contact with a confronting surface on a wheel characterised in that a transducer (34a,34b,34c,34d) is acoustically coupled to at least one brake pad (28a,28b,28c,28d,29e,28f,28g,28h), the transducer being adapted to provide an electrical output signal dependent upon the degree of acoustic emission activity, detector means (38) adapted to analyse the electrical output signal which corresponds to the level of acoustic emission activity, the detector means 938) being adapted to send a feedback signal to a control means (40) which controls the pressure applied to the wheel by the at least one brake pad so as to at least reduce the pressure applied to the wheel in one mode of operation.
Patent KR-920006024-B1 (KR)
Inventor: HIRAMATSU TAKEO
IPC: F16H59/00
Filed: 1988-02-24
Granted: 1992-07-27
Abstract: 내용 없음.
Patent KR-970004842-B1 (KR)
Inventor: FUMIO OOTSUKA
IPC: H01L21/8242
Filed: 1988-03-04
Granted: 1997-04-04
Abstract: 내용 없음.
Patent KR-940005222-B1 (KR)
Title: Tv sub-screen still control apparatus
Inventor: PARK NAE-BONG
IPC: H04N5/45
Filed: 1988-03-23
Granted: 1994-06-13
Abstract: The subscreen still control circuit in a picture in picture (PIP) video cassette recorder and television set includes a dynamic RAM for storing a subscreen image signal, a gate array for storing or generating the image signal stored in the dynamic RAM in or from a predesignated screen region, a microcomputer for generating a subscreen still control signal, and a logic circuit for generating a still image, thereby obtaining a distinct still screen.
Patent KR-970004440-B1 (KR)
Inventor: MCNEELY DAVID LOWELL
IPC: H03K5/135
Filed: 1988-08-02
Granted: 1997-03-27
Abstract: 내용 없음
Patent KR-920001034-B1 (KR)
Title: Manufacturing method and device with double insulating layer
Inventor: CHO SUNG-MIN
IPC: H01L21/31
Filed: 1988-08-17
Granted: 1992-02-01
Abstract: The manufacturing process  for  semiconductor  having  double insulation layer structure comprises (A)  wet  etching  the  first insulation layer (3) formed on PN  junctions  (1,2),  (B)  growing thin oxide film around slow-sloped contact window and forming  the second insulation layer  (4),  (C)  dry  etching  (4)  around  the contact window, and (D) removing  the  thin  oxide  film  (4)  and forming Al electrode. The thin oxide film  (8)  is  grown  at  900 deg.C for 10 mins. Under O2 atmosphere,  and  then  for  10  mins. Under H2O2 atmosphere. The second insulation layer (4) is grown by OPCVD at 780 deg.C for 100 mins. with 300cc. SiH2Cl2  and  120  cc NH3.
Patent KR-920008606-B1 (KR)
Title: Lever handle assembly for sanitary fixtures
Inventor: DAJIANTIS KRISTOS
IPC: F16K31/60
Filed: 1988-09-23
Granted: 1992-10-02
Abstract: A control handle for sanitary valves is connected as one piece to a handle sleeve (2) and the handle sleeve (2) is connected via a handle adapter (6) to the spindle (8) for operating the valve. A sliding coupling (4, 5, 14, 12) is provided between the handle adapter (6). 
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Patent KR-920005198-B1 (KR)
Inventor: CHEN PHILIP L
IPC: H04N1/00
Filed: 1988-11-24
Granted: 1992-06-29
Abstract: 내용 없음.
Patent KR-920002978-B1 (KR)
Inventor: TEJIMA HIROYA
IPC: C09D151/00
Filed: 1989-03-27
Granted: 1992-04-11
Abstract: 내용 없음.
Patent KR-940004826-B1 (KR)
Title: Returning time measuring apparatus in safety valve of gas range
Inventor: LEE NAM-JAE
IPC: G01D21/00
Filed: 1989-05-18
Granted: 1994-06-01
Abstract: The device measures the feed time of safety valve and reduces the manufacturing cost. The device includes an instant ignition safety valve (1), a valve sheet (2), a cylinder (3), an air-hose (4) which has air pressure, a nozzle (5), an air cylinder (6) which inputs a 280±50mm H2O pressure, a liquid level meter (7), a glass tube (8) which connects to an air-hose (4), and a stop sensor (9) which is installed at a position, of 28 cm height from the liquid level meter (7).
Patent KR-930003899-B1 (KR)
Inventor: FURUHASHI KIYOSHI
IPC: E04H1/12
Filed: 1989-07-07
Granted: 1993-05-15
Abstract: 내용 없음.
Patent KR-920005285-B1 (KR)
Inventor: HOSOI TAKASHI
IPC: G06F1/16
Filed: 1989-08-31
Granted: 1992-06-29
Abstract: 내용 없음.
Patent KR-0150777-B1 (KR)
Title: Compatible polymer mixtures
Inventor: SIOL WERNER
IPC: C08L53/00
Filed: 1989-09-12
Granted: 1998-10-15
Abstract: The invention relates to compatible polymer mixtures PM comprising two different polymer components: A) 1 to 99 % by weight of a copolymer built up from monomers 
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 and forming a polymer of the formula I 
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 B) and 99 to 1 % by weight of a polyalkyl methacrylate built up from monomers of the formula 
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 with the proviso that: R1 represents an aliphatic hydrocarbon radical having 1 to 4 carbon atoms, R2 represents hydrogen or methyl, R3 represents an acyclic aliphatic hydrocarbon radical having 2 to 8 carbon atoms, and in which x makes up 10 - 90 % by weight and y makes up 90 - 10 % by weight, based on the polymer of the formula I.
Patent KR-910008647-B1 (KR)
Title: Apparatus for inspecting human existence
Inventor: YUN GAP-GI
IPC: G01N21/00
Filed: 1989-09-28
Granted: 1991-10-19
Abstract: The apparatus detects  the  existence  and  its  duration  of lodgers in hotel rooms or passers-by  before  a  guard  post,  and automatically leaves the records on them. The apparatus  comprises a rotational plate (2) turning around an axis  (4)  at  a  regular speed, a record paper (5) equipped at one end  of  the  rotational plate, an on/off switch  (1)  sensing  infrared  rays  from  human bodies, a first record rod (6) writing records on  the  paper  (5) after moving toward the rotational plate when the infrared  switch (1) gets turned on, and a second  record  rod  (7)  writing  other records on the paper when the switch (1) gets tuned off.
Patent KR-0185165-B1 (KR)
Inventor: SUZUSIWAN
IPC: G11B27/10
Filed: 1988-09-29
Granted: 1999-05-01
Abstract: 풀 모션 컬러 디지털 비디오 신호(52)는 종래의 비디오 프레임 율로, 압축되고, 전송을 위해 포맷되고, 콤팩트 디스크 매체(20)상에 기록되고, 디코드된다. 압축 동안에, 한 프레임의 영역은 각 영역에 특정한 최적의 필 코딩 방법을 선택하도록 개별적으로 분석된다. 압축 임계값을 최적화시키기 위해 영역 디코딩 시간 평가가 행해진다. 영역의 크기 및 위치를 나타내는 영역 묘사 코드는 데이터 스트림의 제1세그먼트에서 함께 그룹되어진다. 영역에 대한 화소 크기의 표시를 나타내는 영역 필 코드는 필 코드 형태에 따라서 함께 그룹되고 데이터 스트림의 다른 세그먼트에 위치된다. 데이터 스트림 세그먼트는 그들의 각각의 통계학적 분포에 따라서 개별적으로 가변 길이 코드되고 데이터 프레임을 형성하기 위해 포맷된다. 프레임 당 바이트 수는 플레이백동안 콤팩트 디스크의 정지를 최소화시키도록 선택된 평균수를 제공하기 위해 역 프레임 시퀀스 분석에 의해 결정된 보조 데이터의 부가에 의해 진동되어, 콤팩트 디스크의 예언할 수 없는 탐색 모드 잠복기를 기피한다. 디코더는 코드 스트림에서의 통계학적 정보에 응답하여 데이터 스트림의 개별 세그먼트를 독립적으로 가변 길이 디코딩하는 가변 길이 디코더를 구비한다. 영역 위치 데이터는 영역 묘사 데이터로부터 추출되고 필 코드 형태(예컨대, 상대, 절대, 다이애드(dyad) 및 DPCM)의 검출에 의해 선택된 다수의 영역 특정 디코더에 영역 필 코드가 인가되어, 디코드화된 영역 화소는 후속 디스플레이용의 비트 맵에 저장된다.
Patent KR-960000578-B1 (KR)
Inventor: NISHIDA KUNIO
IPC: F16N7/32
Filed: 1989-01-12
Granted: 1996-01-09
Abstract: 내용 없음.
Patent KR-920005727-B1 (KR)
Title: Manufacturing method of polyester filament yarn and a device thereof
Inventor: KIM JIN-IL
IPC: D01D4/02
Filed: 1990-02-22
Granted: 1992-07-16
Abstract: The manufacturing method of polyester spun-like filament yarn with good  pilling  property  comprises;  extruding  polyethylene terephthalate using spinneret whose thickness becomes thinner from outside to inside,  outside  orifice  shape  is  trilobal,  inside orifice shape is round and thickness difference between  outermost and innermost is 10-15  mm,  cold-solidifying  to  obtain  undrawn fiber, strength difference between  outside  filament  and  inside filament of which is 0.5-2.0 g/d and break  elongation  difference between them is 50-100 %, drawing, twisting and interlacing.
Patent KR-930005675-B1 (KR)
Inventor: INOUE YOSHITAKA
IPC: A61L9/015
Filed: 1990-05-09
Granted: 1993-06-24
Abstract: 내용 없음.
Patent KR-930002175-B1 (KR)
Title: Apparatus for producing bean curd
Inventor: SOK JONG-SU
IPC: A23L11/00
Filed: 1990-12-22
Granted: 1993-03-27
Abstract: The apparatus with a boiling kettle (c) and  a  storing  tank (d) includes a hopper (9), a solenoid (24) linked to  a  supplying tank (15), a salt water tank (13) linked to a salt water supplying pipe (20) with the solenoid and a  pump  (19),  a  fixed  quantity feeder (1) linked to a mixing pipe (21), a lift coloumn (32) fixed to both sides of fixing member (31) and a limit guide shaft  (33), a lift chair (35) with a chain gear (35a) provided at the top  and bottom of the fixing member,  the  first,  second,  third,  fourth limit switches (50)(51)(52)(53) coupled to  the  lift  coloumn,  a sliding base (34) with a power chain (40) and a motor  (M3)  fixed to the fixing member, a lift (30) with a motor (M1).
Patent KR-950002193-B1 (KR)
Inventor: DEIE TOSHIKAZU
IPC: H01R13/41
Filed: 1991-01-16
Granted: 1995-03-14
Abstract: 내용 없음.
Patent KR-930007740-B1 (KR)
Title: Power supply control circuit
Inventor: SO DONG-WON
IPC: G05F1/56
Filed: 1991-02-25
Granted: 1993-08-18
Abstract: The constant voltage regulator supplies constant voltage with respect to varying load  conditions.  The  regular  circuit  using zener diodes and transistors, generates easily power supply inside the semiconductor chips. If breakdown voltage of  zener  diode  is 5V, and diode voltage down is 0.7V, the output voltage is 4.3V  so that if the supply voltage, 4.5-6.3V needed,  its  output  voltage does not drive  the  internal  circuits.  Using  zener-diodes  and transistors  the  breakdown  voltage,  is  reduced  to  drive  the circuit.
Patent KR-940010877-B1 (KR)
Title: Photo diode printer head
Inventor: JONG SUNG-SHIK
IPC: B41J2/235
Filed: 1991-03-21
Granted: 1994-11-19
Abstract: The light emission diode print head, used in an non-impact type printer, has individual electrode wiring parts formed in a single base plate so that it can make the conventional arrangement process unneccessary, and the wire bonding process easy. The LED print head comprises a base plate (21) made of glass or ceramic and including 4 sides; a plurality of common electrodes (23) linearly arranged in parallel to a first long side of the base plate (21); a key mark (31) for longitudinally insatalling a drive integrated circuit at an end of the common electrodes (23).
Patent KR-940009465-B1 (KR)
Title: Color video printer
Inventor: LEE KWANG-JAE
IPC: H04N9/79
Filed: 1991-04-06
Granted: 1994-10-13
Abstract: The exposing method increases a gradation value of color being printed and compensates a sensitivity difference. The method includes the steps of: fixing a level of signal voltage for driving a liquid crystal element on each LCD panel; deciding the number of the exposing on respective R.G.B. so as to be proportioned to respective R.G.B. data values; focusing an electric video signal to an optical video signal; and exposing photo-sensitive media by the optical video signal on each of R.G.B. lines of respective LCD panels.
Patent KR-0184006-B1 (KR)
Inventor: KAWAMURA AKIRA
IPC: G02B27/01
Filed: 1991-04-10
Granted: 1999-05-15
Abstract: 본원 발명은 렌즈로상을 확대하여, 허상으로서 표시하는 허상디스플레이등에 사용하기에 적합한 광학장치에 관한 것이며, 제1의 본원 발명은 1매 내지 복수매의 렌즈로 구성된 렌즈계를 가진 광축과, 광축상에 상을 영출시키는 디스플레이와, 렌즈계 하부에 광축에 대해 45°경사져 배설한 빔스플리터와, 빔스플리터의 전방에 배설한 액정 셔터를 구비하고, 빔스플리터후방으로부터 들여다 봄으로써 디스플레이상의 상을 허상으로서 관찰할 때에 외경(外景)도 순간적으로 확인할 수 있도록 한 것이다.   제2의 본원 발명은 제1의 발명에 있어서의 광학장치에 있어서, 두 눈으로부터 허상에 이르는 시선내의 최소한 한쪽에 액정셔터등의 차폐수단을 배설하여, 한쪽의 시각정보를 결락시키도록 하여 한쪽눈으로 허상을 보아서, 두눈으로 보고 있는 효과를 내고, 두눈의 경사와수정체의 핀트조정간의 모순이 해소되도록 한 것이다.
Patent KR-930008558-B1 (KR)
Title: Duct
Inventor: PARK SU-MYONG
IPC: F16L11/00
Filed: 1991-05-27
Granted: 1993-09-09
Abstract: The paper pipe, used for securing the setting  space  of  the elecricity or gas flow ducts in  concrete  buildings,  makes  them discriminate its usage purpose by making the colour of  the  outer paper identical with that of  the  inner  paper.  The  paper  pipe comprises a band paper (4) helically adhering to the  outer  paper (3) and coloured by the mixture of dyes and strong alkaline water; the inner paper (1) made from paper  bands  and  having  the  same colour as the band paper (4)  helically  wound  around  the  outer paper (3); the outer paper (3) coated with paraffin.
Patent KR-940001595-B1 (KR)
Title: Apparatus for preventing mistransferred tape of tape recorder
Inventor: LEE DU-HYON
IPC: G11B15/22
Filed: 1991-07-15
Granted: 1994-02-25
Abstract: A tape incorrect conveyance preventing apparatus is disclosed in which an idler gear and an idler lever for fast forward and rewind are rotatably installed between a supply reel and a takeup reel, a recess and a spring are provided on one side of the idler lever, a cam driving lever driven by a solenoid is installed under a cam gear, and a locker having a stop is rotatably installed between the cam gear and idler lever, thereby preventing incorrect conveyance of tape.
Patent KR-940010303-B1 (KR)
Inventor: HANANO TAKASHI
IPC: C10N10/02
Filed: 1991-12-19
Granted: 1994-10-22
Abstract: 내용 없음.
Patent KR-0140235-B1 (KR)
Title: Continuous rail production
Inventor: CRYDERMAN ROBERT L
IPC: B21B45/00
Filed: 1990-11-30
Granted: 1999-02-18
Abstract: A superior unitary one quarter mile long railroad rail and system and method for manufacturing the same. The method of manufacture is characterized by the use of a continuous rolling process and the in-line controlled cooling of the rail. The system produces very long rails without any weld seams.
Patent KR-950006382-B1 (KR)
Inventor: MAEDA SHIGERU
IPC: H05K13/02
Filed: 1991-02-05
Granted: 1995-06-14
Abstract: 내용 없음.
Patent KR-960007495-B1 (KR)
Inventor: IWAMOTO NORIHIRO
IPC: G01D9/00
Filed: 1992-01-08
Granted: 1996-06-05
Abstract: 내용 없음.
Patent KR-940008462-B1 (KR)
Title: Manufacturing method of ceramic absorbed wool fiber
Inventor: JONG HAE-DONG
IPC: D06M11/83
Filed: 1992-01-09
Granted: 1994-09-15
Abstract: A) oxidizing woolen fiber by an oxidizing agent of 1-8 o.w.f; B) reducing oxidized woolen fiber by a reducing agent of 3-8 o.w.f; C) adsorbing condensed amide type resin to the fiber; D) adsorbing fine ceramic particle of 0.1-50 μ; E) forming resin layer by adsorbing binder resin of 0.1-5 % o.w.f on a woolen fiber.
Patent KR-940008895-B1 (KR)
Title: Electrolytic liquid for aluminium electrolytic condenser
Inventor: JANG CHANG-KUK
IPC: H01G9/00
Filed: 1992-04-29
Granted: 1994-09-28
Abstract: The electrolysis for preventing the rising of the inner gas pressure of the capacitor dissolves the ethylene glycol as the main solvent, and the adipic acid, boric acid or its salt as the main solute. The methyl nitro benzoic acid having the good cleaning power and H2 gas absorbing power is also added into the mixture.
Patent KR-970004514-B1 (KR)
Inventor: EDWARDS DAVID S
IPC: G06F11/14
Filed: 1992-05-30
Granted: 1997-03-28
Abstract: 없음
Patent KR-950001866-B1 (KR)
Title: Rock eliminating equipment
Inventor: MUN BYONG-KU
IPC: E21C25/00
Filed: 1992-06-11
Granted: 1995-03-04
Abstract: The apparatus for easily cutting and removing a base rock in underground digging, has a holder means for clamping the rock in order to prevent the damage of the cutting tool and has a noise preventing means for minimizing the cutting noise. The apparatus comprises beas (2)(2') mounted at an L-type movable frame (7); transverse movable members (4)(4'), lengthwise movable members (19)(19') driven by a motor on the beds and mounted with a dovetail joint; a pivot holder (11) with a concave groove (13) operated by a manipulating shaft (8) and a lift cylinder (9), and a vertical holder (15); circular cutting devices (21)(211) with a plurality of artificial diamonds (40); a noise preventing means for receiving the cutting devices (21)(211) jointed with latex rubbers (33)(33').
Patent KR-940011675-B1 (KR)
Title: Manufacturing method for magnetic head
Inventor: SONG HO-SOP
IPC: G11B5/127
Filed: 1992-06-16
Granted: 1994-12-23
Abstract: The method reduces the manufacturing time and cost by eliminating the unnecessary ramping and grinding processes. The method comprises (A) forming grooves (110) for regulating the track width and forming a vertical projection (120) on magnetic ferrite blocks (100a,102a); (B) forming grooves (104) for wrapping coils; (C) forming non-magnetic layers (114a,114d) on the magnetic ferrite block (100a), non-magnetic metal film (114b), and ferromagnetic metal layer (114c) with the sputtering method.
Patent KR-950008849-B1 (KR)
Title: Semiconductor and manufacture method
Inventor: YUN JIN-HYON
IPC: H01L23/02
Filed: 1992-06-25
Granted: 1995-08-08
Abstract: The semiconductor package is to enhance adhesion characteristic by getting rid of expansion force due to the thermal change of a semiconductor tape.  The method consists of the steps of; forming polyester organic compound with a TAB tape in order to eliminate expansion force due to the thermal change of the tape, forming Cu pattern, and forming a circular or rectangular hole on the tape.
Patent KR-950006560-B1 (KR)
Title: Rotary gear pump
Inventor: JANG IL-UNG
IPC: F04B1/10
Filed: 1992-07-27
Granted: 1995-06-16
Abstract: The pressure pump is provided with 2 or more cylinders for a rotator, that is easy to assemble. The pump comprises: I) a rotator (6) turning in the casing (1) with on receiving the external power, II) a revolving plate (11) with pistons (12) coupling to the cylinders (7,7',8,8'), III) suction and discharge means eccentrically set on the top cover plate (9) of the casing (1), IV) and the pistons as many as cylinders.
Patent KR-960003222-B1 (KR)
Title: Pager receiver
Inventor: LEE JOO-HWAN
IPC: H04B5/04
Filed: 1992-09-18
Granted: 1996-03-07
Abstract: a sliding part which is connected to an axis as a body on a slide switch executing alarm, vibration selection, and power cutoff; a first protector having a first open groove and a first penetrating hole to couple to the top of the axis, a second open groove placed under the bottom of the axis, and a second penetrating hole which is smaller than the first penetrating hole.
Patent KR-950005611-B1 (KR)
Title: Optical cable tv system
Inventor: YUN YONG-HUN
IPC: H04N7/10
Filed: 1992-11-13
Granted: 1995-05-27
Abstract: The reframe circuit is for reconstructing data during demultiplexing process. The circuit comprises a demultiplexing circuit (1) for receiving bit interleaving multiplexed data signal, a clock signal frequency divider (5) for providing clock signal to the demultiplexing circuit (1), a frame detector (2) for detecting frame patterns from output signal of the demultiplexing circuit (1), a channel number detector (3) for detecting channel from output signal of the frame detector (2), and a skip pulse generator (4) for generating skip pulse according to output signal of the channel number detector (3).
Patent KR-950009433-B1 (KR)
Title: The distributed queue dual bus communication system
Inventor: KIM DOK-HWAN
IPC: H04M3/22
Filed: 1992-12-14
Granted: 1995-08-22
Abstract: The system comprises a FIFO queue for storing an OA segment; a DQSM state machine for maintaining a count down state so as to transfer the segment when the FIFO queue has at least one segment, and outputting the segment when a busy slot bit is "0"; a ROM state machine for receiving request information when the DQSM state machine receives the QA segment from the FIFO queue, sending the request information to a reverse bus B of the DQSM state machine when the request bit is "0", performing a request bit transmission control function when own request is desired to be sent, and outputting a relative information; a LMSM state machine for receiving the information from the DQSM state machine and the FIFO queue, and measuring a time average value of the traffic load for the own node and a bottom node; a SESM state machine for receiving the information on the presence/absence of the performance of the segment from the LMSM state machine and the request bit information from the RQM and RCSM state machines; and a RCSM state machine for receiving a request cancellation information from the DQSM state machine and the SESM state machine, and informing the SESM state machine of the result.
Patent KR-100236012-B1 (KR)
Inventor: HONG KYEONG-SEOP
IPC: A47L9/00
Filed: 1992-12-30
Granted: 1999-12-15
Abstract: 본 발명은 진공청소기의 소음저감 장치에 관한 것으로서, 팬모터의 주변에 소음기의 역할을 하는 소음저감관을 설치함에 따라 팬모터에서 발생되는 배기소음을 저감시킬 수 있을 뿐만 아니라, 복수개의 광역공간부를 형성함에 따른 유속의 저감으로 난류유동소음 또한 최소화하여 소음에너지를 대폭 저감시킬 수 있어서 진공청소기의 효율성 및 신뢰성을 향상시킨 것이다. 
     이를 위해, 본 발명은 외부케이스내에 이물질을 포집하기 위한 집진필터와, 흡인력을 발생시키는 팬모터를 구비한 진공청소기에 있어서; 상기 팬모터(6)의 주변에, 적어도 하나 이상의 축관부(10a)와 확관부(10b)를 가짐과 아울러 공기가 통과할 수 있도록 흡입구(8)와 배출구(12)를 갖춘 소음감축관(10)을 설치하여, 상기 팬모터로부터 발생된 구동소음이 소음감축관의 축관부와 확관부를 통과하면서 유속이 감쇄됨에 따라 배출소음이 저감되도록 한 진공청소기의 소음저감 장치이다.
Patent KR-950001594-B1 (KR)
Title: Regional dividing method for digital signal
Inventor: AN BYONG-KU
IPC: G06F3/14
Filed: 1992-12-30
Granted: 1995-02-27
Abstract: The method segments all connected regions in a binary image by searching all pixels in the image data only once. Firstly, each row in the image data is searched and encoded by the run length code. After all pixels are searched, each searched row is examined whether any pixel in each row has 1 value or not. If so, region segmentation processing is performed by comparing current row and the previous row, and a linked list is made to store information about each segmented region.
Patent KR-0161503-B1 (KR)
Title: Belt tensioner
Inventor: SIDWELL JOHN
IPC: F16H7/12
Filed: 1990-10-04
Granted: 1998-12-01
Abstract: A belt tensioner and method of making the same are provided, the tensioner comprising a support for being fixed relative to a belt, a belt engaging arm carried by the support and being movable relative thereto, a spring operatively associated with the support and the belt engaging arm for urging the belt engaging arm relative to the support and against the belt with a force to tension the belt, the support comprising a shaft having a longitudinal axis, the belt engaging arm being rotatably mounted on the shaft, the arm having a bearing surface angled relative to the axis and the support having a bearing surface angled relative to the axis and facing the bearing surface of the arm, and a bushing disposed between the bearing surfaces and in engagement therewith to facilitate movement therebetween and to tend to prevent cocking of the arm on the shaft when the belt engaging arm is tensioning the belt.