baber/WOPTO huggingface dataset:
Patent KR-20000033141-A (KR)
Title: Front glass for a cathode ray tube
Inventor: BIN CHANG UK
IPC: C03B19/00
Filed: 1998-11-20
Abstract: PURPOSE: A front glass for a cathode ray tube is put its compression stress into 1< ΣSC2/ΣSC1<1.5 to increase the possibility for the occurrence of larger fragments in the central region of the glass than other regions thereof, wherein the sigmaSC1 is a compression stress of the central region of a face part and the sigmaSC2 is one of the periphery region of the face part adjacent the blend R part. Thereby, the resulting front glass gives the prevention from the occurrence of the glass to be smaller fractions in its breaking. CONSTITUTION: The improved front glass is comprised of a face part representing some images, a skirt part having a joint side attached to a rear glass, and blend R part connecting with the face part and skirt part. The front glass is characterized by reinforcing the stress of the face part, skirt part and blend R part by forming compression stress layers therein.
Patent KR-20000038454-A (KR)
Title: Developing unit of printer of wet electronic picture type
Inventor: JANG GI SEON
IPC: G03G15/06
Filed: 1998-12-07
Abstract: PURPOSE: A developing unit of a printer of wet electronic picture type is provided to improve the structure of a manifolder emitting developing liquid to developing gap between a developing roller and a photosensitive belt. CONSTITUTION: A developing unit of a printer of wet electronic picture type includes a plurality of rollers(11), developing rollers(22,32), and a manifolder(40). The developing rollers are provided to develop the developing liquid. A photosensitive belt(10) translates on an eternal loop and is supported by the rollers. The manifoler emits the developing liquid to a developing gap between the developing roller and the photosensitive belt. The manifolder includes a casing material(430). The casing material includes a slant(430a) to let the developing liquid overflowed in a reverse direction with respect of the direction of the developing rollers not remain but flow.
Patent KR-20000039753-A (KR)
Title: Method for processing intelligent network application protocol(inap) operation statistical data in advanced intelligent network-intelligent peripheral(ain ip)
Inventor: HONG SEON MI
IPC: G06F17/18
Filed: 1998-12-15
Abstract: PURPOSE: A method for processing intelligent network application protocol(INAP) operation statistical data in advanced intelligent network-intelligent peripheral(AIN IP) is provided to minimize a load of a system and a load provided by a service by collecting an INAP operation statistical data and formatting a data write portion stored in a memory and necessary information to divide a read portion transmitted to an operator. CONSTITUTION: A MSLC(202) accesses a corresponding library and collects the library to store the library as low data in a local memory when a measuring event is occurred to a transmission and receipt of an INAP operation and a resource supply of an intelligent peripheral corresponding to the INAP operation from a service control block(201). A measurement data gathering for AINIP service(MDGS) block(204) reads data need for an INAP operation statistic from row data stored in the MSLC library and transmits the read data to the MSDP block(204). A statistic performing command is analyzed when the statistic performing command is received from an operator. Information collected during a time required in the MDGS block(204) is processed in the case of the INAP operation statistic, and processed information is transmitted to the operator. Information collected during a time required in a system is processed, and processed information is transmitted to the operator.
Patent KR-19990024186-A (KR)
Title: 원적외선 방사율이 높고 표면에 환무늬와 흑색 반점이 현출되는 벽돌 및 바닥벽돌의 제조방법
Filed: 1998-12-17
Abstract: 본 발명은 지오라이트 고령토. 점토를 주원료로하는 제품에 탄소를 첨가하여 소성후 원적외선을 방사하고 환무늬 및 흑색 반점을 발생하고 내외장 벽돌 및 바닥벽돌을 제조하는 방법에 관한 것이다. 
     본 발명 제품은 소성강도를 증진시키며 원적외선 방사로 인한 인체에 유익함을 주며, 표면에 환무늬와 흑색반점 발생으로 자연스런 이를 가능케 하는 제조방법.
Patent KR-20000040872-A (KR)
Title: Method for turning on and off caption of television
Inventor: PARK JOO DEOK
IPC: H04N5/445
Filed: 1998-12-21
Abstract: PURPOSE: A method for turning on and off the caption of television is provided to turn on/off the caption according to the volume level of the television. CONSTITUTION: A method for turning on and off the caption of television includes six steps. At the first step(S30), an average of volume level data for every time and date is generated and stored. At the second step(S50), whether the current volume level is lower than the stored average volume level by a critical amount is determined. At the third step(S60), whether current program supports caption is determined. At the forth step(S80), caption text is displayed on the screen. At the fifth step(S90) whether the changed volume level is greater than the stored average volume level by another critical amount is determined. At the sixth step(S100), the caption text is turned off.
Patent KR-20000042439-A (KR)
Title: Sense amplifier for semiconductor memory device
Inventor: GONG YONG HO
IPC: G11C7/06
Filed: 1998-12-24
Abstract: PURPOSE: A sense amplifier for a semiconductor memory device is provided to improve sensing width for a fine difference of input signals. CONSTITUTION: A first NMOS transistor(NM1) is arranged between a second output node(N2) and a first pull-up transistor(pmos1) for being driven by a first input signal(sai). A second NMOS transistor(NM2) is arranged between a first output node(N1) and a second pull-up transistor(pmos2) for being driven by a second input signal(saib). Thus, the outputs of first/second input transistors(nmos1,nmos2) are more effectively transferred to the pull-up transistors. And, output signals(sa1o-n,sa1ob-n) corresponding to the first/second input signals are outputted. The difference between the inputs of the first/second pull-up transistors is enlarged for maintaining a larger difference in voltages.
Patent KR-20000043965-A (KR)
Title: Method for supporting leased line service of broadband-wire local loop(b-wll)
Inventor: PARK DU IL
IPC: H04L12/28
Filed: 1998-12-29
Abstract: PURPOSE: A method for supporting a leased line service of a broadband-wire local loop(B-WLL), is provided to supply a leased line service through the B-WLL system, by defining a protocol stack and a service scenario for supplying a leased line service. CONSTITUTION: A method for supporting a leased line service of a broadband-wire local loop(B-WLL), performs an initialization step by a media access control(MAC) protocol performing a wireless media control and utilizes allocated wireless resources according to the performance of the initialization step, for bidirectional communication through a leased line between a network and a subscriber. The initialization step comprises the steps as follows. A polling time slot is allocated, and a state of the subscriber is confirmed by the allocation. A MAC session connection is performed between the network and the subscriber, according as the state of the subscriber is confirmed. The wireless resources are allocated to the subscriber, according as the MAC session connection is completed.
Patent KR-20000044077-A (KR)
Title: Method for saving electricity of microwave oven
Inventor: KIM SEONG JAE
IPC: F24C7/08
Filed: 1998-12-30
Abstract: PURPOSE: A method for saving electricity of a microwave oven is provided to minimize the power consumption by automatically stopping the action of a display unit according to the rotation of a digital knob of more than a certain number. CONSTITUTION: A heater relay switch(23) is contacted by a control signal of a control unit(15), and operation power is output. The operation power is supplied to a heater(24) so that the heater generates heat, and the heat and high frequency heat or cook the food inside a microwave oven. The high frequency oscillated from a magnetron(21) is supplied to the control unit, and the control unit generates a control signal when a certain time passes after the magnetron oscillates the high frequency. After the control signal is supplied to a magnetron temperature switch(22), the magnetron temperature switch is contacted in order. When a power saving key of a key input unit(13) is selected, the control unit blocks the operation power so that the display unit is turned off.
Patent KR-20000044803-A (KR)
Title: Manufacturing method for two panel thin film micromirror array-actuated device
Inventor: KO YOON JIN
IPC: G02F1/015
Filed: 1998-12-30
Abstract: PURPOSE: A manufacturing method for the two panel TMA device is provided to increase the optical energy utilization and to prevent the popping phenomena from occurring at the upper part surface of the second sacrificial layer by forming a protection layer with photoresist. CONSTITUTION: A device comprises a driving substrate(210), an insulation substrate(211), a metal layer(214), a lower part protection layer(215), a MOS transistor(212), an upper part protection layer(217), an etching preventing layer(218), a first sacrificial layer(220), an actuator(230), a membrane(231), an electrodisplacive(233),and a second sacrificial layer(240). A manufacturing step comprises a step of providing the driving substrate including an insulation layer, a MOS transistor, a metal layer, a lower part protection layer, a blocking layer, an upper part protection layer and an etching preventing layer; a step of forming the first sacrificial layer in which the actuator supporting part is formed on the upper part of the driving substrate; a step of forming the second sacrificial layer on the upper part of the protection layer; and a step of forming the mirror supporting part by exposing the actuator.
Patent KR-20000045603-A (KR)
Title: 2-shaft analogue solar sensor apparatus for controlling satellite posture
Inventor: KIM U SUNG
IPC: G01B21/22
Filed: 1998-12-30
Abstract: PURPOSE: A 2-shaft analogue solar sensor apparatus for controlling a satellite posture is provided to simultaneously measure solar angles of the two shafts by designing slits on a signal sensor in a cross shape, dividing a solar cell into four areas and adding a signal processing part. CONSTITUTION: A 2-shaft analogue solar sensor apparatus for controlling a satellite posture includes thin incident slits formed on a longitudinal shaft and a traverse shaft perpendicularly crossing on a top section part of the 2-shaft analogue solar sensor and facing to the sun for introducing sun light to a solar cell via the slits, of which intersection point of the slits is not passed by the sun light, the solar cell(10) divided into first to four solar cell parts(11-14) by opposite angles perpendicularly crossed on a square plane for measuring solar angles by generating current in response to the incident sun light in the slits, the incident sun light and the first to fourth solar cell parts crossing with an angle of 45 degree, and a signal processing part for computing solar angles of the 2-shaft by computing the current.
Patent KR-20000046479-A (KR)
Title: Network transfer apparatus and method thereof
Inventor: CHO DAL HO
IPC: H04L12/28
Filed: 1998-12-31
Abstract: PURPOSE: A network transfer apparatus and the method thereof, not necessary to boot the computer, even though a network is transferred, by controlling a power saving mode, are provided. CONSTITUTION: A transfer apparatus(1) is connected with different networks(Net1,Net2) and a computer system(3). By being controlled by a control unit or a user, the transfer(1) is connected to one out of the networks(Net1,Net2) connected with the computer system(3). The control unit is a controller comprised in the computer system(3) or an integrated circuit comprising the controller. The control unit exchanges information in communication with a network selected in the transfer apparatus(1) out of the different networks((Net1,Net2).
Patent KR-20000046798-A (KR)
Title: Wafer slip prevent construction of semiconductor boat
Inventor: SHIN YU SIK
IPC: H01L21/68
Filed: 1998-12-31
Abstract: PURPOSE: A wafer slip prevent construction of a semiconductor boat provides a quartz boat for bath type PR strip device preventable breakage of wafers. CONSTITUTION: A wafer slip prevent construction of a semiconductor boat comprising a boat body(10) having upper and lower support plate(11,12). A support rod(13) having a wafer safe arrival groove(13a). A heat expansion member(100) is mounted on each wafer safe arrival groove(13a), boat stage(20), boat elevator(30).
Patent KR-19990035961-A (KR)
IPC: A61P5/00
Filed: 1996-07-17
Abstract: PCT No. PCT/EP96/03149 Sec. 371 Date Jan. 14, 1998 Sec. 102(e) Date Jan. 14, 1998 PCT Filed Jul. 17, 1996 PCT Pub. No. WO97/05167 PCT Pub. Date Feb. 13, 1997Cyclic peptides of general formula (I), wherein the groups are as described in the disclosure, having inhibitory activity on growth hormone. The peptides of formula (I) have also anticancer activity.
Patent KR-20000064417-A (KR)
IPC: B65B43/26
Filed: 1996-11-21
Abstract: An apparatus for automatically transferring valved bags (2) arranged in a stack (1) to a machine for filling the bags with a flowable material. The apparatus comprises means (3, 60) for picking up one bag (2) at a time from a stack (1); a conveyor (4) with a plurality of receivers (5) adapted to receive a bag (2) removed from the stack (1) by said picking means (3) and a first transfer device (6) and a second transfer device (7) for transferring the bag (2) to a filling machine with the proper orientation for being filled. The picking means (60) can comprise suction cup members (62) permanently communicating with a space (66) maintained at a pressure lower than the atmospheric pressure.
Patent KR-20000050750-A (KR)
Inventor: HONG JIN PYO
IPC: G11B15/02
Filed: 1999-01-14
Abstract: PURPOSE: A method for operating a mini player to play and record a signal, is provided to play/record sound signals busing a recorder inserted into a cassette inserter, by enabling to play and record sound signals via a self drive. CONSTITUTION: A method for operating a mini player play and record a signal, comprises the steps of: if power is applied to a controller, setting as a portable mode and a stopped status; deciding whether a control button is operated(S2); if operated, resetting the portable mode; playing and recording signal data in a memory according to the operated button and returning to the S2; if not operated, deciding whether a recorder driving axis is rotated; if not rotated, returning to the S2; if rotated, resetting as a tape mode; and playing and recording the signal data according to a rotation speed of the driving axis and a rotation direction and returning to the S2.
Patent KR-20000051648-A (KR)
Inventor: SHIN JIK SOO
IPC: C01G23/00
Filed: 1999-01-25
Abstract: PURPOSE: A process for preparing black titanium oxide powder from titanium dioxide powder using magnesium powder as a reducing agent is provided which produces the title compound at a low cost. CONSTITUTION: A process comprises the steps of obtaining a mixture by mixing titanium dioxide and magnesium powder having a particle size of less than 20 mesh in a molar ratio of 1 : 1 to 1 : 4; molding the mixture at a pressure of 0 to 150 Mpa; reacting the above molded product in a self-propagating high-temperature reactor under vacuum or inactive atmosphere; removing impurities by leaching the above product in an acid solution; obtaining black titanium oxide by filtering the above product, washing, drying, and grinding. The process is economical and widely used for high quality cosmetics, electronic products, and special paints.
Patent KR-19990077406-A (KR)
Title: 키토산함유적토수성추출액제
IPC: C11D7/08
Filed: 1999-02-05
Abstract: 산성 pH 에서 용해된 키토산 및 적토 수성추출액을 함유하는 수성액제가 제공된다.     pH 를 산성으로 만들기 위해 시트르산이 사용될 수 있다.     수성액제는 탈취제, 식품첨가제 및 세정제로서 사용된다.
Patent KR-19990072502-A (KR)
Title: 발광다이오드의제조방법
IPC: H01L33/30
Filed: 1999-02-09
Abstract: 본 발명의 발광다이오드의 제조방법은, n형 GaAs 기판의 표면이 (100)면으로부터 소정 각도 θ만큼 경사져 있을 때, 표면전극을, 층 두께 d로 형성한 전류확산층의 전류저지부를 반영한 표면형상부 위에, 상기 표면 형상부가 전류저지부로 부터 변위되어 있는 방향(El)과 반대의 방향(Fl)으로, 약(d/tanθ)만큼 변위되도록 형성한다. 이에 의해, 전류저지층의 바로 위에 정확히 표면전극을 형성할 수 있다.
Patent KR-20000056113-A (KR)
Inventor: LEE HYUN JO
IPC: B60Q1/06
Filed: 1999-02-10
Abstract: PURPOSE: An electric power supply apparatus for search light is provided to prevent tangle of an electric wire in the process of a rotation of a search light constituted to be controlled in a range of a 360 degree in an up/down and a left/right direction. CONSTITUTION: An electric power supply apparatus for search light which is constituted to be controlled in a range of a 360 degree in an up/down and a left/right directions is characterized in that a connection to an electric power supply is made by a contacts connecting device in which a fixed axis(20) of a angular rotating axis members is mounted with a fixed plate(21) and a rotating axis(30) is mounted with a rotating plate(31) to be opposed to the fixed plate(21), while the fixed plate(21) is arranged with a plurality annular electric contact plates(22) in a separated state and the rotating plate(31) is arranged with armatures(32) to permit the armatures(32) to be contacted to the opposing electric contact plates(22).
Patent KR-19990072901-A (KR)
IPC: H03F3/217
Filed: 1999-02-24
Abstract: 에러 정정 목적의 D급 증폭기의 출력을 정확히 재생시키기 위한 회로는 기준 신호 증폭 회로를 포함한다.    상기 기준 신호 증폭 회로는 상기 증폭기의 내부 출력 스테이지의 디지털 출력을 단일 기준 신호로 결합하는 차등 증폭기로서 구성된 연산 증폭기를 포함한다.    상기 연산 증폭기의 대역폭을 감소시킴으로써, 상기 발생된 기준 신호에 위상 이동을 추가하지 않고, 스위칭 노이즈는 상기 디지털 신호로부터 제거된다.    추가적으로, 상기 증폭기의 대역폭을 아날로그 출력을 사용하기보다는 상기 출력 스테이지로부터의 상기 디지털 신호를 사용함으로써, 외부 스피커에 의해 유발된 후방 전자기장으로 인한 왜곡이 방지된다.    상기 기준 신호는 에러 정정 목적의 증폭기로의 원래 신호 입력에 비교된다.
Patent KR-19990078035-A (KR)
Title: 자기기록및재생장치
IPC: G11B15/665
Filed: 1999-03-18
Abstract: 본 발명은 자기 테이프를 기록 및 재생하기 위해 테이프 카세트로부터 자기 테이프를 인출하고 회전 헤드를 갖는 회전 헤드 실린더 둘레에 소정의 원호로 자기 테이프를 권취하기 위한 자기 기록 및 재생 장치에 관한 것이다. 자기 기록 및 재생 장치는 상부에 테이프 카세트와 회전 헤드 실린더가 장착되는 베이스 부재를 포함한다. 제 1 상태는 테이프 카세트가 사용자에 의해 베이스 부재상에 장착되는 상태로 정의된다. 제 2 상태는 테이프 카세트의 장착 후에, 테이프 가이드 부재가 자기 테이프를 테이프 카세트로부터 인출하고 회전 헤드 실린더 둘레에 소정의 원호로 자기 테이프를 권취해서 자기 테이프를 기록 및 재생시키는 테이프 구동 시스템을 형성하는 상태로 정의된다. 로딩 동작은 제 1 상태로부터 제 2 상태로의 이행 동작으로 정의된다. 자기 기록 및 재생 장치는 베이스 부재상에 회전식으로 축으로 지지되고 테이프 카세트 내의 자기 테이프를 권취하여 유지하기 위해 릴과 결합하는 릴 베이스와, 릴 베이스를 회전 구동시키는 릴 드라이버를 부가로 포함한다. 로딩 동작에서, 릴 베이스는 자기 테이프를 취하는 방향으로 릴 드라이버를 사용함으로써 회전된다.
Patent KR-20000065623-A (KR)
Inventor: KIM HYEONG SEOK
IPC: F02B37/00
Filed: 1999-04-07
Abstract: PURPOSE: A thrust bearing structure is provided to allow the manufacturing of the structure to be performed in an easy manner and reduce wear at a bearing surface by reducing contact area of the bearing surface. CONSTITUTION: A thrust bearing is for preventing a driving shaft(30) which rotates by a driving motor from being slipped in axial direction. A thrust bearing structure is characterized in that a bearing surface(120) of a gas bearing has an inwardly stepped cone portion(121), and the stepped cone portion has a gas inlet groove(121a). Thus, the stepped cone portion of a bearing member(100) is prevented from being contacted with an opposite bearing surface, eliminating the necessity of removing cracks generated during a process of forming the gas inlet groove.
Patent KR-19990064750-A (KR)
Title: 저장수(貯藏水) 정화장치 및 정화방법
Filed: 1999-04-30
Abstract: 본 발명은 저수지나 하천의 저장수를 정화하기 위한 저장수 정화장치 및 정화방법에 관한 것이며, 저장수를 대류작용에 의해 상하 교반하여 줌으로써 수중의 용존산소량을 증대시켜 자정작용에 의해 물을 정화할 수 있는 저장수 정화장치 및 정화방법을 제공하고자 하는 것을 과제로 한다. 본 발명의 저장수 가열장치는, 집열체에 의해서 증발되는 수증기가 돗보기와 같은 집열체의 집열효과를 저하시키지 않도록 집열체의 하단부에 차단막을 구성시킨 구조이며 집열체의 초점이 금속막대 에 집중되도록 구성시킨 구조이다, 상기한 구조에 의하여 저장수의 수면위에 설치되어 수면위를 이동하면서 표면수를 가열시켜 뜨거워진 저장수가 대류현상에 의해서 하층부로 이동하는 것에 의해 저장수를 상하 교반하여 용존산소량을 증대시키도록 한 것을 특징으로 한다. 본 발명의 저장수 정화방법은, 저장수의 상층부에 돗보기 또는 태양열 집열체와 같은 발열체를 부설하여 이 발열체에서 발생하는 열에 의해 금속막대가 뜨거워지면 저장수의 표면온도가 자연적으로 상승 되므로써 저장수의 상하 교반 활동에 의하여 용존산소량을 증대시키도록 한 것을 특징으로 한다. 
     호수의 상층수를 가열하여 상층수와 하층수의 대류현상을 유발시켜주어 대류 현상이 발생할때에 덩달아서 호수의 하층에 적층되어 있는 퇴적오니들이 상층부로 휩쓸려 올라가면서 또다시 호수의 하층으로 가라앉게 되는데 이때에 증가되는 용존 산소에 의하여 퇴적오니들이 자연분해를 하게 되면서 호수의 수질이 나아지는 것이다.
Patent KR-20000073290-A (KR)
Inventor: JANG JIN HYUK
IPC: H03M7/30
Filed: 1999-05-08
Abstract: PURPOSE: A method for coding data using pattern conversion is provided to obtain a high compression rate without deterioration or loss of signals. CONSTITUTION: In a method for coding data using pattern conversion, source data input in the form of square wave is transferred to at least one pattern configured of phase, amplitude and frequency to pattern-transfer the data parameter of the source data to one-to-one correspond to at least one pattern configured of phase, amplitude and frequency, to simplify parameters of the original source data, thereby compressing the bits and band of the data. The compressed data is considered as a single block according to independency in the pattern conversion and it is compressed sequentially in parallel with combination of the blocks being connected. In case of decompression, the source data and pattern data are switched to each other.
Patent KR-20000073364-A (KR)
Title: Module ram carrier
Inventor: HWANG JI HYEON
IPC: B65G49/07
Filed: 1999-05-10
Abstract: PURPOSE: A module RAM(random access memory) carrier is provided to load and transfer module RAMS of various lengths by using a carrier. CONSTITUTION: For loading a 72 pin module RAM(MR) on a carrier, a switch(13) is operated. With the operation of the switch, a motor(12) is actuated and a second pulley(10) connected to the motor rotates in a certain direction at a certain speed. A first pulley(9) is connected to the second pulley via a belt(11), so is the second pulley. According to the rotation of the first pulley, a two-way screw rotates. Thereby, the interval between transfer supports(3) is adjusted.
Patent KR-20000074167-A (KR)
Inventor: KIM JONG MOK
IPC: C08L23/02
Filed: 1999-05-18
Abstract: PURPOSE: The titled ceiling material having improved durability by adding ceramic to an expandable resin composition and process for preparation thereof are provided which are easy to handle and storage, have moisture proofing and insulating function and prevent environmental pollution. CONSTITUTION: The ceiling material comprises 40 to 60% by weight of polyolefin resin, 5 to 20% by weight of ceramic, 5 to 10% by weight of a foaming agent, 20 to 50% by weight of magnesium hydroxide, 10 to 15% by weight of a fire retarding, 5 to 10% by weight of antimony trioxide and 0.1 to 0.5% by weight of a stabilizer. The process for producing ceiling material comprises introducing the compound into a mixer (1), mixing at 90 to 150°C for 15 min, forming in a chip form in a first forming process (S1), extruding the raw material in a plate form in an extruder (2) in a second forming process (S2), foaming the extruded material at 220 to 270°C in a foaming machine in a third process (S3) and cutting foamed material in a fourth process.
Patent KR-19990088425-A (KR)
Title: 장관출혈성대장균검출을위한올리고뉴클레오티드및이를이용한검출방법
IPC: C12N15/09
Filed: 1999-05-20
Abstract: 본 발명은 식중독·설사증에 관한 검사에 있어서, 간편, 신속, 및 고감도의 EHEC 또는 VTEC의 검사법을 제공하는 것을 목적으로 한다. 
     본 발명은 EHEC (또는 VTEC)의 베로독소 유전자 또는 병원성 대장균 O157의 O 항원 합성영역 유전자와 선택적으로 혼성화하는 서열번호 1∼9의 올리고뉴클레오티드를 제조하여, 그 올리고뉴클레오티드를 프라이머로 하여 유전자증폭에 이용하고 있다. 이것에 의해, 이들 균의 병원인자의 하나인 O157을 생산하는 균 및 베로독소를 생산할 수 있는 대장균을 선택적으로 검출하는 것을 특징으로 한다.
Patent KR-20000075108-A (KR)
Inventor: HUH HUN
IPC: H04B1/40
Filed: 1999-05-28
Abstract: PURPOSE: A method for manufacturing diaphragms of dynamic receivers of cellular phones is provided to thin an edge part of the diaphragms and relatively thicken a body part, to elastically operate an attraction force and a repulsive force by a magnetic circuit of the receiver, so as to efficiently generate sounds of relatively low frequencies as same materials. CONSTITUTION: A receiver pressures an edge part of a diaphragm with heats and shapes the edge part by thin plastic materials. The receiver pressures a body part of the diagram with the heats, and shapes the body part by thicker plastic materials than the materials of the edge part. The receiver attaches an inner surface of the edge part to an exterior surface of the body part to shape the diaphragm.