baber/WOPTO huggingface dataset:
Patent KR-20010085232-A (KR)
Inventor: ADACHI GO
IPC: F21Y101/00
Filed: 2000-10-05
Abstract: PURPOSE: A headlamp of a vehicle is provided to improve performance and efficiency of the headlamp by increasing luminosity, and to improve the quality with compact structure. CONSTITUTION: A headlamp(1) for a vehicle is composed of a light source(2); a first reflector(3) formed in a parabolic reflecting surface to place the light source in a focus; a light guide passage(4) connected to the rear part of the first reflector; a second reflector(5) formed in the parabolic reflecting surface installed outside corresponding to the light guide passage; a third reflector(6) placed near an optical axis of the first reflector to focusing and transmitting light from the light source to the light guide passage; and a lens(7) mounted in the front of first and second reflectors. Luminous flux efficiency of the light source is improved, and the appearance is improved with forming the lens of 30mm.
Patent KR-20010040062-A (KR)
Inventor: NAKANO KAZUHIRO
IPC: H03B5/12
Filed: 2000-10-12
Abstract: PURPOSE: To obtain stable oscillation signals in two frequency bands whose frequencies greatly differ, and to obtain the satisfactory C/N and a large power. CONSTITUTION: A voltage control oscillator circuit 1 is provided with feedback capacitors 4 and 5 connected between the base/emitter and emitter/collector of an oscillation transistor 2, a resonance circuit 12 equipped with at least a varactor diode 13 and an inductance element 14 and connected in harmonics between the collector and base, and an impedance 8 connecting the emitter and ground in DC. A buffer circuit 30 is constituted of a tuning amplifier circuit capable of turning with two frequency bands, and the impedance circuit 8 is constituted so that a large impedance can be obtained with the two frequency bands, and the feedback capacitors 4 and 5 and the inductance element 14 are constituted so as to be switchable, and at the time of performing oscillation in the high frequency band, the capacitance of the feedback capacitors 4 and 5 and the inductance of the inductance element 14 are decreased, and at the time of performing oscillation in a low frequency band, the capacitance and the inductance are increased.
Patent KR-20020029464-A (KR)
Title: Nitride compound based light-emitting diode having a p-electrode which contains an inserted reflective layer, and fabricating method thereof
Inventor: HUH CHEOL
IPC: H01L33/10
Filed: 2000-10-13
Abstract: PURPOSE: A nitride light emitting diode(LED) having a p-type electrode structure with an inserted anti-reflective coating(ARC) is provided to increase light emitting efficiency by making the light absorbed at a wire contact electrode prevented by the ARC, and to further increase the light emitting efficiency by making the light reflected by the ARC affect light emission of a light emitting active layer. CONSTITUTION: The ARC(52) is formed in a predetermined region on a p-type nitride semiconductor layer. A transparent electrode(54) covers the surface of the p-type nitride semiconductor layer, including the ARC. The wire contact electrode(62) is formed on the transparent electrode so that the wire contact electrode is positioned on the ARC. A p-type electrode(50) includes the ARC, the transparent electrode and the wire contact electrode.
Patent KR-20010060213-A (KR)
Inventor: HIGETA AKIRA
IPC: G03G21/18
Filed: 2000-10-28
Abstract: PURPOSE: To reproduce a process cartridge which is filled with toner and sealed without drawing a toner seal out and using a toner seal for a used process cartridge. CONSTITUTION: A cut 12d provided for an optical path for development gap measurement of a developing lower frame 12b is filled with a chin groove filling seal 68. The seal 68 is made to abut against an end part seal sealing a developing roller end part. A chin part 12b1 is covered with a side cover seal 69 including a blowout preventive seal 42. Toner can be sealed without providing a toner seal. This contributes to prevention against a leak of toner in distribution.
Patent KR-20020035214-A (KR)
Title: Wastewater treatment construction structure and constructing method thereof
Inventor: CHOI HAN SUN
IPC: E03F3/06
Filed: 2000-11-04
Abstract: PURPOSE: A drainage treatment structure and a method for forming the same are provided to prevent defects caused by differential settlement after improving ground by means of pre-loading process by forming a drainage structure. CONSTITUTION: The structure is formed by a step of boring a foundation ground(S1); a second step of preparing a water-permeable sand layer to outflow water contained in the ground(S2); a third step of forming a resin cast-releasing steel pipe at upper end of the sand layer(S3); a fourth step of forming another sand layer over the steel pipe(S4); a fifth step of forming a high grade soil layer over the sand layer(S5); and a sixth step of forming a common earth layer over the high grade soil layer(S6). The structure has a securing part having bent portion covering outer side of the steel pipe. The securing part has a linear portion formed with a joint portion having several depth control holes.
Patent KR-20020037817-A (KR)
Title: Construction method for continuous bridge and continuous slab bridge by connecting continuously upper concrete slab installed anchorage apparatus for unbonded steel strand
Inventor: JUNG JAE HEE
IPC: E01D19/12
Filed: 2000-11-15
Abstract: PURPOSE: A temporary installation method for a continuous bridge provided with an unbonded PS strand anchorage is provided to restrain the bending crack of an upper concrete slab by controlling negative moment effectively. CONSTITUTION: The temporary installation method for a continuous bridge provided with an unbonded PS strand anchorage(60) comprises the steps of: installing many piers(100) or abutments(101); placing many girders(50), one of an I-shaped beam, a PSC beam, a preflex beam and a re-prestressed preflex beam between the pier(100) and the pier(100) or the pier(100) and the abutment(101); completing an upper concrete slab(70) by installing a form where slab concrete places on the girders(50), installing an unbonded PS strand anchorage(60) in a form of a part where an upper concrete slab(70) is formed, placing slab concrete, then curing the surface and finishing the upper surface; and introducing tensile force to an unbonded PS strand of the unbonded PS strand anchorage(60) by a tension, then introducing a compressive force by anchoring both ends to projections of the unbonded PS strand anchorage(60) by an anchorage.
Patent KR-20010051893-A (KR)
Inventor: ENOKI MASAYUKI
IPC: H04B7/08
Filed: 2000-11-23
Abstract: PURPOSE: A mobile wireless terminal adopting a CDMA system is provided to enhance possibility of assuring stable communication quality under a ratio wave environment with rapid fading. CONSTITUTION: A control section(100) is provided with a reception energy discrimination means(100a) that discriminates an Ec/Io of a received signal to realize a new control function and with a switch changeover control means(100b) that selects an antenna, temporarily receives the signal through the remaining antenna when the Ec/Io of the signal received through the selected antenna is lower than a preset level at sending and receiving or at a speech to detect the Ec/Io and uses the antenna with the excellent Ec/Io for the reception.
Patent KR-20020040231-A (KR)
Title: Method for manufacturing gate in semiconductor device
Inventor: PARK DAE GYU
IPC: H01L21/336
Filed: 2000-11-24
Abstract: PURPOSE: A method for fabricating a gate of a semiconductor device is provided to form a dual metal gate by depositing a metal layer on an NMOS region and a PMOS region. CONSTITUTION: An isolation layer(11), an NMOS region(12a), and a PMOS region(12b) are formed on a semiconductor substrate(10). A gate insulating layer(13) is deposited on the semiconductor substrate(10). The first metal layer(14) is deposited on the gate insulating layer(13). The first metal layer(14) is formed by one of TiNx, WNx, TaNx, MoNx, and TiAlNx. The first metal layer(14) is deposited by using one of a sputtering deposition method, a single atom deposition method, and a remote plasma chemical vapor deposition method. A photoresist layer pattern is formed on the first metal layer(14). The second metal layer(16) and a hard mask layer(17) are deposited on the first metal layer(14) and the nitrated the first metal layer(14a). A dual gate is formed by performing a patterning process.
Patent KR-20020042124-A (KR)
Title: Method for rolling of carbon steel to refin grain size
Inventor: KANG GI BONG
IPC: B21B37/00
Filed: 2000-11-30
Abstract: PURPOSE: A rolling method is provided to maintain critical accumulated strain capable of grain refinement after finishing rolling by accurately determining an accumulated strain by reflecting a recovery strain amount due to recrystallization on a following rolling pass in rolling pass of the hot rolling process of carbon steel. CONSTITUTION: In a method for manufacturing a rolled material by rolling carbon steel through multistage rolling passes, the method for rolling carbon steel for grain refinement comprises the steps of obtaining accumulated strains of each passes from the multistage rolling passes from the following relational expression 1: £Relational Expression 1| Sna=Sn+S(n-1)a(1-Xn-1) where Sna and S(n-1)a are accumulated strains at n or n-1 times of rolling passes, Sn is strain at n times of rolling passes, and Xn-1 is a recrystallization fraction at n-1 times of rolling passes; and performing hot rolling on the carbon steel so that an accumulated strain at the final rolling pass in the obtained multistage rolling passes in the actual operation is the same or greater than a critical accumulated strain of a target rolling material.
Patent KR-20020043097-A (KR)
Title: Piston having rotating body
Inventor: JU HYEON CHEOL
IPC: F02F3/00
Filed: 2000-12-01
Abstract: PURPOSE: A piston having a rotating body is provided to improve combustion efficiency of an engine by mixing fuel and air optimally, and to maximize performance by reducing incomplete combustion in exploding with distributing particles of mixed air evenly. CONSTITUTION: Plural aerofoil protrusions are arranged radially in the upper part of a rotating body(10), and an installation hole is formed in the middle of the rotating body. The rotating body is installed in the upper part of a piston(20) with inserting a bolt to the installation hole, and turned conveniently with forming a bearing unit in the lower part of the rotating body. The rotating body turns with flow of fuel and air from an intake port(30) to a combustion chamber during suction stroke, pressure during the explosion stroke, and flow of combustion gas discharged through an exhaust port(32) during the exhaust stroke. Incomplete combustion is prevented, and power is improved with mixing air and fuel optimally.
Patent KR-20020045216-A (KR)
Title: Apparatus for continuously detecting level of molten iron in slag of blast furnace
Inventor: HONG SUN PAL
IPC: C21B7/20
Filed: 2000-12-08
Abstract: PURPOSE: An apparatus for continuously detecting a level of molten iron in a slag runner of a blast furnace is provided to prevent manual work load of workers at a high heat area and safety accidents accordingly by judging the level of molten iron according to flow of electric current using a carbon electrode rod. CONSTITUTION: The apparatus for continuously detecting a level of molten iron in a slag runner of a blast furnace comprises a control part(37) detecting the level of molten iron from the descending length when detecting electric current from the second carbon electrode rod(35b) by impressing electric current to the first carbon electrode rod(35a) and detecting electric current from the second carbon electrode rod(35b) as descending first and second carbon electrode rods(35a,35b) at a time point when slag is separated from molten iron, and positioning the first and second carbon electrode rods(35a,35b) to the right positions by ascending them after completing detection of the level of molten iron; first and second coil type induction motors(24a,24b) which are rotated forward and reverse according to control of the control part(37); first and second brakes(25a,25b) stopping the first and second coil type induction motors(24a,24b) according to control of the control part(37); first and second wire drums(27a,27b) equipped at rotation shafts of the first and second coil type induction motors(24a,24b) so as to be rotated according to forward and reverse rotations of the induction motors(24a,24b); first and second wires(30a,30b) each of which are coiled on or uncoiled from the first and second wire drums(27a,27b) according to the forward and reverse rotations of the induction motors(24a,24b), and in which electric wire cables connected to the control part are equipped; first and second support weights(32a,32b) connected to the lower part of the first and second wires(30a,30b); and first and second carbon electrode rods(35a,35b) connected to the lower part of the first and second support weights(32a,32b) and the electric wire cables inside the first and second wires(30a,30b).
Patent KR-20020047606-A (KR)
Title: Propeller shaft of vehicle
Inventor: CHO YUN HYEONG
IPC: B60K11/08
Filed: 2000-12-13
Abstract: PURPOSE: A propeller shaft of a vehicle is provided to refrigerate a fuel tank by using rotational force of the propeller shaft and to improve equality of products. CONSTITUTION: A propeller shaft in a vehicle comprises a transmission(2) changing rotational force generated from an engine into a torque; a propeller shaft(6) transferring the rotational force into a rear wheel(4); a fuel tank(8) mounted on a left side of the propeller shaft with specific interval; a muffler(10) arranged on a right side portion of the propeller shaft; a universal joint(12) transferring power of an engine into a rear axle by being mounted on the propeller shaft; a sleeve joint installed on a side portion of the universal joint; a blast fan(16) generating current air into the rear axle by being connected to the engine; a hub(18) inserted to a front side of the propeller shaft; and plural blades(20) arranged on a circumferential direction of the hub with specific interval.
Patent KR-20020046442-A (KR)
Title: A method of audio/video synchronization for speaking rate control
Inventor: KIM SANG HUN
IPC: H04N5/04
Filed: 2000-12-14
Abstract: PURPOSE: An audio/video synchronization method using a speaking speed control function is provided to synchronize audio and video with each other by using a pause length, a zero crossing rate and an energy curve. CONSTITUTION: A zero crossing rate and an energy curve are extracted from a received broadcasting sound to judge if there is a pause section or not(402). A pause length is controlled in the pause section to generate a piece-wise linear equation(404,405,406). A control rate of segmental level is obtained from the phoneme type in a sound section(407) and a control rate of super segmental level is attained from the piece-wise linear equation(408). The final speaking speed control rate is determined using the control rate of segmental level according to the phoneme type and the control rate of super segmental level according to the piece-wise linear equation(409).
Patent KR-20020051409-A (KR)
Title: Method of manufacturing a transistor in a semiconductor device
Inventor: KANG YEONG SEOK
IPC: H01L27/092
Filed: 2000-12-22
Abstract: PURPOSE: A fabrication method of transistors of semiconductor devices is provided to improve a drain saturation current and an electrical characteristic by fully degenerating a gate electrode of a PMOS(P-channel Metal Oxide Semiconductor) transistor without a boron penetration. CONSTITUTION: First gate oxides(3), polysilicon gate electrodes, gate spacers(6), LDD(Lightly Doped Drain) structured source/drains are formed in a semiconductor substrate(1) having an NMOS(N) and a PMOS(P) regions. After forming an interlayer dielectric(7), the interlayer dielectric(7) is etched to expose the polysilicon gate electrodes. The polysilicon gate electrode and gate oxide(3) on the PMOS(P) region are removed to expose the semiconductor substrate(1). A second gate oxide(3p) is formed on the entire surface of the resultant structure. Then, a p+ doped polysilicon(9a) is filled into the removed polysilicon gate electrode region, thereby fully degenerating the gate electrode in the PMOS regions(P).
Patent KR-20020051136-A (KR)
Title: Method of providing background image of wireless mobile terminal
Inventor: CHAE I SIK
IPC: H04B7/26
Filed: 2000-12-22
Abstract: PURPOSE: A method for providing a background screen to a mobile terminal is provided to supply a selective moving picture file to a mobile terminal, while a mobile terminal is connected with a mobile network, so that it can be used as the background screen of the mobile terminal. CONSTITUTION: If a user accesses a mobile network through his mobile terminal(S10), the mobile network transmits a message to ask him whether he wants to enter a moving picture background selection mode(S12). If the user clicks on an OK button in response to the message, the OK button click signal is transmitted to an MSC(Mobile Switching Center) through a base station and a base station controller. The MSC fetches moving picture file list information from a moving picture file management server and transmits it to the mobile terminal(S14). If the user selects a desired moving picture file, the corresponding selection signal is transmitted to the MSC through the base station and the base station controller(S16). Based on the selection signal, the MSC fetches a relevant moving picture file from the moving picture file management server and transmits it to the mobile terminal(S18). At this moment, together with the moving picture file, the MSC transmits a text file to confirm whether the user will use the moving picture file as the background screen of his mobile terminal. If the user inputs a key to use the downloaded moving picture file as the background screen after seeing the displayed text, the mobile terminal regenerates the downloaded moving picture file and displays it by frames(S20).
Patent KR-20020051810-A (KR)
Title: a remittance advice service by SMS(Short Message Service)
Inventor: PARK JIN BON
IPC: H04W4/00
Filed: 2000-12-23
Abstract: PURPOSE: A remittance notification service using the SMS(Short Message Service) of a portable phone is provided to transfer remittance information to a remittee through the SMS of portable phone when a remitter sends money at a bank. CONSTITUTION: A client(1), who wants to send money to a remittee(4), visits a bank(2) directly or uses Internet banking, phone banking or mobile service. The bank(2) approves the remittance transaction and transfers this information to an SMS provider. The SMS provider provides the remittance transaction information to the remittee's portable phone as a short message using an SMS system(3). The remittee(4) confirms bank information through the transmitted short message and pushes a confirmation button if transaction information is correct.
Patent KR-20020056270-A (KR)
Title: Method of manufacturing dram cell
Inventor: KIM IL GWON
IPC: H01L27/108
Filed: 2000-12-29
Abstract: PURPOSE: A method of fabricating a DRAM cell is provided to improve retention time and short channel margin by using a buffer layer and tilt, rotation, twist phenomenon in an ion implantation process. CONSTITUTION: In a semiconductor substrate(31) which is defined an active region by forming an isolation region, A gate electrode(34) is formed at regular intervals on the substrate. A first insulation layer(33) is formed on the entire surface of the substrate including the gate electrode. An ion implantation is performed at regular angles and times on the entire surface of the substrate in order to form a source/drain impurity region on both side of the gate electrode of the active region.
Patent KR-20020056425-A (KR)
Inventor: SIM JAE CHEOL
IPC: G11C16/20
Filed: 2000-12-29
Abstract: PURPOSE: A circuit for detecting configuration information of power-on reset is provided to test a latching state of configuration information about power-on reset by detecting the configuration information about power-on reset. CONSTITUTION: A power-on reset detection portion(1) outputs a power-on reset signal(POR) by detecting a rising state of supply voltage due to initial power-on. An inverter(INV1) inverts a reset signal(RSTB) applied from an external input pin. An external reset detection portion(2) output an external reset detection signal(ORD) by detecting a falling edge of the inverted reset signal(RSTB). An OR gate(OR1) outputs a configuration information read signal(CONF-READ) by performing a logical operation for the power-on reset signal(POR) and the external reset detection signal(ORD). An address/read signal generator(3) receives the configuration information read signal(CONF-READ) and generates an address(ADD(15:0)) and a read signal(READ). An EPROM(4) outputs data of corresponding bits. A latch portion(5) outputs configuration information(CONF-DATA) by latching the data of the EPROM(4). A falling edge detection portion(11) detects a falling edge and outputs a power-on reset detection signal(PORD). A latch portion(12) latches the configuration information(CONF-DATA) and outputs power-on reset data(POR-DATA). An AND gate(AND11) output a latch read signal(LAT-READ). An AND gate(AND12) performs a logical operation for the power-on reset data(POR-DATA) and the latch read signal(LAT-READ).
Patent KR-20020059046-A (KR)
Title: Scan type exposure apparatus
Inventor: KIM EUNG WON
IPC: G03F7/00
Filed: 2000-12-30
Abstract: PURPOSE: Provided is a scan exposure device, in which top surface/bottom surface of substrate can be completely and uniformly exposed to optical system continuously and repeatedly by scanning. CONSTITUTION: The scan exposure device comprises loading part(11) and unloading part(12) at both sides; and exposure part(15) at midsection. The exposure part(15) has frame assembly(20) having up/down frames so as to support the substrate, and to enable a mask to contact to top/bottom part, and frame transferring unit for establishing a moving area in the exposure(15) and relatively transferring the frame assembly with respect to exposed light in moving area. The exposure part(15) has optical system for irradiating to the top/bottom surface of the substrate.
Patent KR-20020059114-A (KR)
Title: Method for fabricating semiconductor device
Inventor: LEE WON HO
IPC: H01L27/146
Filed: 2000-12-31
Abstract: PURPOSE: A method for fabricating an image sensor is provided to improve immunity for bad pixels due to an increase of a contact resistance between an active layer and a metal contact. CONSTITUTION: A gate oxide layer(22) is formed on a semiconductor substrate(21). A polysilicon is deposited on the gate oxide layer(22). A plurality of gate electrodes(23) are formed by patterning selectively the polysilicon. A spacer is formed on both sides of the gate electrode(23) by depositing and etching an insulating layer thereon. A nitride layer is deposited on a whole surface of the above structure. A photo-resist layer pattern is formed by applying and patterning a photo-resist layer on the nitride layer. The nitride layer is etched by using the photo-resist layer pattern as a mask. The photo-resist layer pattern is removed. A titanium silicide(27) is formed on the nitride layer. A TEOS(28) and a BPSG(29) are deposited on the whole surface of the above structure. A metal contact(30) is formed thereon.
Patent KR-20010021678-A (KR)
Title: 시한 회로
IPC: H03K17/28
Filed: 1998-07-07
Abstract: 집적 회로에 사용하기 위한 시한 회로는 비교적 긴 주기를 발생한다. 한 쌍의 정합 부품의 전기적인 특성(예컨대, 저항)은, 상기 부품들 중 하나에 열을 공급하는 동안 측정될 수 있다. 부품들의 열 의존 특성값이 소정 양만큼 차이가 나면, 측정 주기가 종료한다. 상기 한 쌍의 정합 부품들은 IC내의 열 절연 구조내에 위치한다.