baber/WOPTO huggingface dataset:
Patent KR-20020077974-A (KR)
Title: A small-sized predistortion linearizer using diode mixer for improving intermodulation distortion of broadband power amplifier
Inventor: CHO GYEONG JUN
IPC: H03F1/32
Filed: 2001-04-03
Abstract: PURPOSE: A compact predistortion linearizer by using a dynamic mixer for improving a modulation performance of a broadband power amplifier is provided to reduce a DC power loss and improve a change of modulation characteristics during a long time operation by employing a dynamic mixer as a modulation generator. CONSTITUTION: A compact predistortion linearizer by using a dynamic mixer for improving a modulation performance of a broadband power amplifier includes a first 90 degree hybrid coupler(210) for dividing a pair of carrier waves into a linear path and a nonlinear path, a variable phase shifter(220) for compensating a phase difference generated in the nonlinear path, a delay line(230) for compensating a delay time generated in the nonlinear path by inputting an output signal of the variable phase shifter(220), a mixer(260) for generating a modulation signal, an isolator(250) for preventing the modulation signal generated from the mixer(260) from entering back to the linear path, a variable attenuator(270) for modulating the size of the main signal and the modulation signal and a second 90 degree hybrid coupler for coupling the signal of the linear path through the delay line(230) with the signal of the nonlinear line through the variable attenuator(270). The predistortion linearizer employs a predistortion method having a predistorter composed of an inner carrier wave provided with the linear path and the nonlinear path for inputting a pair of carrier waves and an RF power amplifier(280) for outputting the carrier wave by removing the modulation signal generated by inputting the signal processed by the predistorter.
Patent KR-20010090788-A (KR)
Title: Electromagnetic wave absorber, method of manufacturing the same and appliance using the same
Inventor: ABE TERUYOSHI
IPC: H01L23/552
Filed: 2001-04-10
Abstract: PURPOSE: An electromagnetic wave absorber, method for manufacturing the same and appliance using the same is provided to obtain superior electromagnetic wave absorbing characteristics, while reducing manufacturing procedures. CONSTITUTION: An electromagnetic wave absorber comprises composite magnetic particles having a grain size smaller than 10 micron meter, and the magnetic metal grains and ceramic are formed integrally into a single unit. A method for manufacturing an electromagnetic wave absorber, is characterized in that composite magnetic particles including magnetic metal grains and ceramic formed integrally into a single unit, are formed through a mechanical alloying method for a magnetic metal powder and a ceramic powder.
Patent KR-20010069514-A (KR)
Inventor: CHOI GAP GYU
IPC: A23L33/00
Filed: 2001-04-09
Abstract: PURPOSE: A method for preparing a hormone power red clover intensified of immune function is provided, which improves metabolism, promotes hormone secretion to prevent aging, and intensifies stamina, eye sight, and memory. CONSTITUTION: A method for preparing a hormone power red clover intensified of immune function comprises the steps of: (i) a first step to examine the suitableness of materials such as Colostrum milk, evergreen palmberry extract powder, wood pulp extract powder, coral calcium powder, vitamins, and essential amino acids; (ii) a second step to measure selected materials as a combining ratio; (iii) a third step to mix homogeneously with a mixer; (iv) a fourth step to form the mixed materials; and (v) a fifth step to pack and examine products.
Patent KR-20010098841-A (KR)
Title: 자기 특성이 우수한 방향성 전자강판
IPC: C21D9/46
Filed: 2001-04-24
Abstract: 본 발명은 강판의 양 표면상에 서로 대향하는 지점에 레이저빔을 조사하고, 미세한 환류 자구를 형성시킴으로써 자기 특성이 개선된 자기 특성이 우수한 방향성 전자 강판으로서, 
     압연방향에 있어서 상기 환류 자구의 폭은 0.3mm 이하이고, 압연방향에 있어서 양 표면상에서 서로 쌍을 이루는 환류 자구의 위치간의 편차는 압연방향의 상기 환류 자구의 폭과 동일하거나 작은 것을 특징으로 한다. 또한, 본 발명은 상기 강판은 그 표면상에 레이저 조사 흔적을 가지는 것을 특징으로 하는 자기 특성이 우수한 방향성 전자 강판에 관한 것이다. 또한, 본 발명은 지철이 강판 표면상의 레이저 방사 위치에서 노출되지 않는 것을 특징으로 하는 자기 특성이 우수한 방향성 전자 강판에 관한 것이다.
Patent KR-20020082688-A (KR)
Title: Receive apparatus for mobile communication system
Inventor: CHOI JUN HYEOK
IPC: H04B1/40
Filed: 2001-04-25
Abstract: PURPOSE: A receiving device of a mobile phone system is provided to reduce an offset of a higher active filter without using an analog-digital converter, thereby reducing an initialization time of a mobile phone system. CONSTITUTION: A higher active filter(100) outputs two differential signals(V1,V2). An increase and decrease unit(600) inputs one of the tow differential signals. An analog-digital converter(200) inputs an output of the increase and decrease unit(600), and inputs the other output of the filter(100), to convert into a digital signal. A digital signal processor(300) inputs the digital signal, and outputs a control signal. A switch(400) inputs the two differential signals to form a feedback loop, and inputs the control signal to output the signals(V1,V2). An offset detector(500) inputs the control signal to form the other feedback loop, and extracts an offset value(Vd) from an output of the switch(400) to transmit the value to the increase and decrease unit(600), then increases and decreases the differential signals.
Patent KR-20010074597-A (KR)
Title: The measuring instrument of the depth of water
Inventor: CHOI SEUNG HUN
IPC: G01F23/02
Filed: 2001-05-09
Abstract: PURPOSE: A portable water depth measurer is provided to measure a depth of water by day and by night by improving a structure of a water depth measurer. CONSTITUTION: An upper and a lower cap(110,120) have an upper and a lower guide tube(111,121), respectively. An inner space(131) is formed within an intermediate body(130). A clairvoyant window frame is formed at an inner side of the intermediate body(130). An intermediate guide tube(133) and a battery is installed at a lower end of the intermediate body(130). A support projection(134) is formed on an upper inner side of the intermediate body(130). A pin insertion hole(141a) is penetrated into a support plate(141). A passing hole(142) and a loading fixing portion are formed on a sensor settlement plate(140). A sensor is fixed to the loading fixing portion. A guide groove(152a) is formed on an intermediate outer circumference. A rubber(152c) is formed on the guide groove(152a). A rotating body is formed between the sensors(151). An output portion(160) has an LCD device(161) adhered to the clairvoyant window frame. A measuring portion(170) has a measuring wire(172) and a measuring weight. A lighting portion(180) is formed with a multitude of light emission diode and one or more lamp(182). A control portion(190) compares and determines received data, outputs a measured water depth value, controls supplied power, and performs a reset operation.
Patent KR-20020087282-A (KR)
Title: Method for processing of call-detail-record in mobile packet data service network
Inventor: KIM SEON MI
IPC: H04L12/14
Filed: 2001-05-15
Abstract: PURPOSE: A method for processing billing information in a wireless packet data network is provided to minimize the loss of billing information and reduce a network load according to the transmission of maintenance billing information by transmitting start billing information and end billing information generated in a PDSN(Packet Data Serving Node) to a billing server through an IP(Internet Protocol) network, storing various maintenance billing information in a certain memory, and transmitting maintenance billing information stored in the memory to the billing server through the IP network when system fault is generated. CONSTITUTION: A control unit checks each device composed in a call process unit and the state of an entire system(ST21). The control unit confirms whether certain system fault information is provided from the call process unit, or transmits fault confirmation information to each PDSN per a certain period and confirms the state of the system on the basis of the reception of a response signal about fault confirmation information(ST22). The control unit stores maintenance billing information provided from the call process unit in a normal state in a billing information storing unit according to a subscriber(ST23,ST24). If fault is generated, the control unit transmits subscriber-classified maintenance billing information stored in the billing information storing unit to a billing server through a switching unit after the generated fault is recovered(ST25).
Patent KR-20020088694-A (KR)
Title: settop-box for internet TV applicable smartcard
Inventor: HONG SEUNG CHUL
IPC: H04N7/14
Filed: 2001-05-19
Abstract: PURPOSE: A set-top box for an Internet TV applicable with a smart card is provided to conveniently input user information in case that a user uses pay Internet services when the user uses the Internet through a TV. CONSTITUTION: A set-top box for an Internet TV applicable with a smart card includes a first interface(20) exchanging data with a web server on the Internet, a second interface(10) exchanging data with a TV, a third interface(30) exchanging data with a smart card, a control part(40) receiving data from the smart card through the third interface for transmitting the data to a pay site operating web server if the pay site operating web server requests communications with the smart card through the first interface in response to a service request of a user having decided to pay with the smart card.
Patent KR-20020090717-A (KR)
Title: Packing box of outdoor unit of air-conditioner
Inventor: PARK JUN HYEONG
IPC: B65D81/02
Filed: 2001-05-29
Abstract: PURPOSE: A packing box for an outdoor appliance of an air conditioner is provided to reduce a volume of packing by using corrugated paper board only, thus maximizing a utility of space and devising the recycling of packing materials. CONSTITUTION: The packing box used to absorb any shock applied to the upper end of an outdoor of an air conditioner comprises a longitudinal damper member(55) formed by rolling front and rear facing surfaces of a corrugated paper board inward in perpendicular to each other over a certain length in order to absorb any shock applied to the upper ends of the front and rear surfaces of the outdoor appliance; a transverse damper member(60) formed between both distal ends of the longitudinal damper members by rolling the corrugated paper board in perpendicular to each other over a certain length in order to absorb any shock applied to the upper ends of the left and right side surfaces of the outdoor appliance; and a top surface damper member(70) installed in a bottom portion defined by the longitudinal and transverse damper members to prevent any shock from being applied to the top surface of the outdoor appliance.
Patent KR-20020091496-A (KR)
Title: Light guide panel with prisms, the manufacturing method of it and the core die for it
Inventor: JUNG YEON GU
IPC: G02F1/1335
Filed: 2001-05-30
Abstract: PURPOSE: A prism light guide panel, a method for fabricating the same and a stacking type mold therefor are provided to form concave-convex surfaces of a prism to a surface of a light guide panel, thereby obtaining a surface light source of a high luminance from the light guide panel. CONSTITUTION: A method for fabricating a prism light guide panel includes a stacking alignment and clamping step of aligning a plurality of thin plates with a predetermined inclination angle, a mirror surface processing step of processing end surfaces of the slant thin plates to a plane surface and processing the plane surface to a mirror surface, an assembling step of stacking the thin plates in sequence to form prism concave-convex surfaces at an entire surface of a mold core, and a mold-assembling and injection molding step of assembling the assembled core mold into a mold for carrying out injection molding.
Patent KR-20020092004-A (KR)
Title: Finishing cap for plumbing joint of boiler
Inventor: HUH SEOK SU
IPC: F16L55/115
Filed: 2001-06-01
Abstract: PURPOSE: A finishing cap used in a boiler piping joint is provided to prevent the finishing cap from being separated and to prevent residual water from being leaked by forming a guider and a sealing member in an inner portion of the finishing cap. CONSTITUTION: A finishing cap(20) has an inner receiving part(21) at a body thereof. The inner receiving part(21) is formed at a lower center portion thereof with a sealing member(22). The sealing member(22) is closely inserted into an inner pipe(12) of a piping joint(10). A guider(26) is provided at an outer upper portion of the inner receiving part(21). The guider(26) closely makes contact with a thread(11) of the piping joint(10). The sealing member(22) includes an inserting part(23), which is upwardly protruded from the lower center portion of the inner receiving part(21), and a flat grounding part(24) positioned at an outer portion of the inserting part(23) and having a predetermined width.
Patent KR-20020095572-A (KR)
Title: Apparatus for crest factor reduction in CDMA mobile communication system
Inventor: MUN SEONG BAE
IPC: H04B7/155
Filed: 2001-06-14
Abstract: PURPOSE: A device for reducing a CF(Crest Factor) rate in a CDMA mobile communication system is provided to reduce a CF rate increased when supporting a multi FA(Frequency Allocation) function. CONSTITUTION: The first to the third channel card(11-13) deliver CDMA baseband signals to an I channel and a Q channel by FAs(0FA,1FA,2FA). The first to the third digital modulator(21-23) modulate each FA signal. A coupler(30) couples each output signal of the first to the third digital modulator(21-23). A digital to analog converter converts an inputted digital signal into an analog signal. The first frequency up converter(51) converts the analog signal into an IF. A band filter(52) filters the IF with a set band. The second frequency up converter(53) upwardly converts the IF to a high frequency. A front-end unit(61) power-amplifies the high frequency, and delivers the high frequency outside through an antenna(62).
Patent KR-20020096130-A (KR)
Title: Apparatus of laser-repair in electrical die sorting
Inventor: CHOI MUN SEOK
IPC: H01L21/66
Filed: 2001-06-18
Abstract: PURPOSE: A laser-repair equipment used in an EDS(Electrical Die Sorting) is provided to prevent scratches and the breakage of a wafer by immediately sensing the alignment of the wafer. CONSTITUTION: The laser-repair equipment(100) comprises a cassette(110), a sensor(130), and a reflection plate(140). The sensor(130) is formed on the upper of the cassette(110) for sensing the alignment of a wafer(120). If the wafer(120) is normally aligned, the laser beam(150) is totally reflected from the reflection plate(140). The sensor(130) further includes a light emitting part, a light receiving part and a display part for displaying the sensing state. An LED(Light Emission Diode) is used as the display part.
Patent KR-20020096675-A (KR)
Inventor: FURUKAWA HIROYOSHI
IPC: C10L1/02
Filed: 2001-06-21
Abstract: PURPOSE: A fuel composition is provided which can be used in an internal combustion engine of conventional vehicles as it is, and which pollutes environment less. CONSTITUTION: The fuel composition substantially comprises ether only comprising branch aliphatic ether. The fuel composition substantially comprises ether comprising branch aliphatic ether and alcohol comprising branch aliphatic alcohol only, wherein the branch aliphatic ether comprises methyl tert-butylether, wherein the branch aliphatic alcohol comprises tert-butyl alcohol. The fuel composition substantially comprises diisopropyl ether, methyl tert-butylether and tert-butyl alcohol only. The fuel composition substantially comprises diethylether, methyl tert-butylether and tert-butyl alcohol only. The fuel composition substantially comprises isobutyl alcohol and/or sec-butylalcohol, isopropyl ether, diethylether and methyl tert-butylether only.
Patent KR-20010070935-A (KR)
Title: A method for reducing particles from an electrostatic chuck and an equipment for manufacturing a semiconductor
Inventor: NAKAO MIE
IPC: H01L21/027
Filed: 2001-06-22
Abstract: PURPOSE: To reduce particles generated in association with temperature rise of a wafer after the wafer has been mounted on the chucking surface of an electrostatic chuck. CONSTITUTION: A wafer is placed on the chucking surface of an electrostatic chuck, a wafer having a temperature TO which is lower than the temperature of the chucking surface, is chucked to the surface by applying voltage to the electrostatic chuck. When wafer temperature is raised to the saturation temperature, the stress which resulted from the difference between the thermal expansion coefficient of wafer and the thermal expansion coefficient of the electrostatic chuck has an open stage obtained by slidingly moving the wafer on the surface.
Patent KR-20030000080-A (KR)
Title: Method for implementing transparent gateway or proxy in a network
Inventor: LEE JAE HYEONG
IPC: H04L12/70
Filed: 2001-06-22
Abstract: PURPOSE: A method for implementing transparent gateway or transparent proxy on a network is provided to use the technique transforming NAT(Network Address Translation) on a router, gateway or switching equipment in which NAT is implemented. CONSTITUTION: Whether a received packet is a TCP(Transmission Control Protocol) is checked(S800). If not, the packet is transmitted, and if so, whether a destination port exists in an NAT table is checked(S810). If not, a source port exists in the NAT table is checked(S820). If not, the packet is delivered to a packet transmission module. If the source or destination port exists in the NAT table, whether a source IP(Internet Protocol) is a gateway IP is checked(S830). If not, whether an SYN(Synchronize) flag is a setting packet is checked(S840). If so, a session is registered on a session information table(S850). Whether a gateway mode is G is checked(S860). If so, a session is inquired in the session information table(S870). Whether a result exists in the table is decided(S880). If so, the destination IP is changed to a gate IP(S900), and if a result does not exist, the packet is discarded(S890). If the packet is processed in the gateway and transmitted(S830), a record is searched on the session information table(S910). If a result exists on the table(S920) and a packet in which an FIN(Finish) flag is set is generated is a second packet or an RST(Reset) flag is set is processed(S940), the session is deleted(S950) and the source IP is changed to an actual IP on the table(S960). If a result does not exist on the table(S920), the packet is discarded(S930).
Patent KR-20030003801-A (KR)
Title: cyber language market
Inventor: LIM SEONG HO
IPC: G06F17/00
Filed: 2001-07-03
Abstract: PURPOSE: A language market in the cyber space is provided to make a language learner in a nation stably, continuously and actively converse with the native speakers regardless of time and space and to deepen the language learning. CONSTITUTION: A web server(112) provides a web service through the first terminal(101), the second terminal(102), and the Internet. An authentication server(111) authenticates the use of a service by checking the right to use of the terminal users connected to the web server(112). A chatting room management server(113) opens and closes a chatting room in the web server(112) at a predetermined time. A log server(114) records the opening and closing time of all the chatting rooms generated in the web server(112) and the connecting and disconnecting time of all the terminal users.
Patent KR-20020004875-A (KR)
Inventor: IIMORI YASUO
IPC: G06F17/50
Filed: 2001-07-04
Abstract: PURPOSE: To provide an electric wiring simulation device which performs simula tion to judge whether protected parts are fused or not and whether wiring emits smoke or not at the short-circuit of electric wiring of a wire harness or the like. CONSTITUTION: This electric wiring simulation device 1 includes a characteristic information database 4 where parts information related to parts and wiring, discharge characteristics of a power source, current-fusing time characteristics of protected parts, and current-smoking time characteristics of wiring are stored, a designated route retrieval means 11 which retrieves a designated route connecting a short-circuit point and the power source in a test object circuit, a current value calculation means 12 which calculates a resistance value on the designated route on the basis of parts information and calculates a short- circuit current value on the basis of this resistance value and discharge characteristics of the power source, and a discrimination means 13 which discriminates whether protected parts are fused or not and whether wiring emits smoke or not an intervals of a unit time on the basis of current-smoking time characteristics and current-fusing time characteristics.
Patent KR-20030004546-A (KR)
Title: Method of forming surface-hardened photoresist pattern and photoresist pattern using the same
Inventor: HAM JIN HWAN
IPC: H01L21/027
Filed: 2001-07-05
Abstract: PURPOSE: A method for forming a photoresist pattern having a hardened surface and a pattern using the same are provided to supply a gap of photoresist without a damage of a photoresist pattern in a process of forming a fine pattern. CONSTITUTION: An insulating layer(100), a metal layer(104), and a photoresist layer are formed on a semiconductor substrate. A photoresist pattern is formed on the photoresist layer. A buffer layer(108) can be formed between the photoresist pattern and the metal layer(104). A barrier(106) can be formed between the photoresist pattern and the metal layer(104) or the photoresist pattern and the buffer layer(108). The metal layer(104) is etched by using high power and high molecular gases. The photoresist pattern is formed with an inner part(120) and a pattern hardening part(122). A surface of the inner part(120) is not hardened whereas the surface of the pattern hardening part(122).
Patent KR-20010082440-A (KR)
Inventor: HONG IN TAEK
IPC: F01N3/04
Filed: 2001-07-12
Abstract: PURPOSE: An exhaust gas cleaning device and a method thereof are provided to completely clean exhaust gas by generating anions when exhaust gas is discharged through an alkali aqueous solution. CONSTITUTION: Exhaust gas is jetted through many through holes(11) in an inlet pipe(10) in an aqueous solution(P) by a blower(100). The exhaust gas is filtered and adsorbed by a filter(12) adhered to the through holes, and charcoal and yellow soil effectively clean the exhaust gas. The firstly cleaned exhaust gas is neutralized by the alkali aqueous solution. Noxious elements of the exhaust gas are caught by the adhering force of the alkali aqueous solution. Thus, the exhaust gas is secondly cleaned. The cleaned exhaust gas is thirdly cleaned by passing through a refrigerating bar(20) with the water drops generated around the refrigerating bar. Therefore, clean air is discharged to the atmosphere. While the alkali aqueous solution is vibrated by the jetting force of the exhaust gas, anions beneficial to the human body are generated. Therefore, air pollution is minimized.
Patent KR-20030006850-A (KR)
Title: Container-type Sectional Packing Box
Inventor: BAE HO YEONG
IPC: B65D88/52
Filed: 2001-07-16
Abstract: PURPOSE: A container type fabricated packing box is provided to fabricate the packing box after putting articles in as well as put the articles in after fabricating the packing box. CONSTITUTION: The container type fabricated packing box assembles a bottom plate(10) and four side plates(20) to be disassembled. Parts(40) for assembling a bottom plate, which have concave parts, are formed along the edges of the bottom plate corresponding to the lower parts of two opposite side plates(20A). Parts(50) for assembling side plates, which have protrusions, are formed in the lower edges of the two opposite side plates(20A) and fixed to the concave parts in a manner to restrict a vertical direction of movement. Parts(60) for receiving side plates are formed in both sides of the two opposite side plates so that the remaining two side plates(20B) are inserted into the parts for receiving the side plates.