baber/WOPTO huggingface dataset:
Patent JO-2842-B1 (JO)
Title: Integrated process for utilization of labanah whey and other food industries wastes in production of Bio-ethanol
Inventor: MOHAMMAD ABDUL-KADIR IBRAHIM AL-OBAIDE
Filed: 2010-09-08
Granted: 2014-09-15
Abstract: The present invention discloses an integrated process for utilization of important food industries wastes in Middle East countries, mainly olive mill wastewater (OMW) and labanah whey, a by-product of yogurt in the process of labanah production, to reduce the pollutants therein and to produce bio-ethanol from these types of wastes. The present invention illustrates the ability of whey biomass to remove substantial amounts of aromatic compounds present in OMW, mainly phenolic compounds; this was reflected on reduction of the intensity of OMW black colour. Moreover, production of bio-ethanol according to the present invention was carried out in fermentation media composed of labanah whey alone; either whole or deproteinated with or without OMW, as well as in fermentation media composed of labanah whey combined with cheese whey, with or without OMW, for overcoming the problems faced during bio-ethanol production from cheese whey alone; wherein OMW was used in various concentrations, The present invention discloses also a process for improvement of bio-ethanol production from labanah whey combined with cheese whey along with OMW in mixed yeast cultures.
Patent KR-800000126-B1 (KR)
Title: Modified diaphragm electrolytic cell
Inventor: FENN III R
IPC: C25B9/00
Filed: 1975-03-03
Granted: 1980-03-08
Abstract: A modified diaphragm electrolytic cell used for electrolysis of a soln. of common salt was described.  By using an expandable cathode in the cell, the cell prevented a drop of current efficiency from electrolysis processing.  That consisted of a cathode chamber and an anode chamber by installing a diaphragm.  The cathode consisted of a cathode face, a cathode riser and a connector.  The diaphragm included a settlement of asbestos coated discontinuously with a thermoplastic polymer.
Patent KR-790001646-B1 (KR)
Title: Process for preparing oxacyclohexane derivatives
Inventor: MAETA GUNIYAS
IPC: C07D319/04
Filed: 1975-05-26
Granted: 1979-12-01
Abstract: Oxacyclohexane derivs. [I; R1 = lower alkyl; R2 = lower alkyl, lower alkenyl, or lower alkinyl, A is, e.g., compd. (IV; R3 = H or lower alkyl; R4 = lower alkyl or phenyl; R3 can be bonded with R4 to form C4-5 cycloalkylene); Y is, e.g., compd(V) , useful as selective herbicides, were prepd. by treating compd. (II) with compd. (III).
Patent KR-830000175-B1 (KR)
Title: Cathod of vacuum tube
Inventor: ADOZUKA DORAO
IPC: H01J1/20
Filed: 1976-02-16
Granted: 1983-02-17
Abstract: The ceramic substrate is composed of Al2O3 powder 94 weight%, SiO2, 4.5 weight%, MgO 0.9 weight%, CaO 0.6 weight%. The heating element of tungsten is adhered on the ceramic substrate (10). The paste which is mixed alumina powder in binder is printed on the ceramic substrate. The cathode lead layer (13R, 13G, 13B) is pressed on the ceramic layer (12). The base metal layers (14R, 14G, 14B) stick to Ni-coating cathode leads. The thermal expansion rate of the tungsten is similar to that of the ceramic substrate and ceramic insulating layer.
Patent KR-830001148-B1 (KR)
Title: 제초제 조성물
IPC: A01N33/00
Filed: 1979-05-14
Granted: 1983-06-16
Abstract: 내용 없음.
Patent KR-820000472-B1 (KR)
Title: Precoat method for powder ion-exchange resin of ion-exchange filter
Inventor: TAIKO TOSHIYUKI
IPC: B01J47/00
Filed: 1979-05-29
Granted: 1982-04-07
Abstract: 5% Slurry solution contg. cation exchange resin and anion exchange resin was dilluted by mixing pure water or slurry water, exhausted from ion exchange filter, in precoating pump to give 0.5% slurry solution.  Above slurry solution was quickly transported to ion exchange filter having multi- element, precoat lay of powder ion exchange resin uniformly formed on multi-elament.
Patent KR-840000969-B1 (KR)
Title: Yarn supplying method for knitting machine
Inventor: CARROTTE FREDERICK HENRY
IPC: D04B15/48
Filed: 1979-10-03
Granted: 1984-07-02
Abstract: A knitting machine uses a positive feed device having at least one wheel(24) rotatably driven by an endless belt(28). The yarn is arranged to be gripped between the wheel and the belt and is positively fed at least during a part of the knitting process. The positive feed is removed prior to a change in the yarn feed while the yarn feed ceases or knitting continues without interruption through the change after the positive feed is removed.
Patent KR-800000411-B1 (KR)
Title: Process for preparing derivatives of quinazoline
Inventor: TOMSON C
IPC: C07D239/72
Filed: 1979-12-08
Granted: 1980-05-20
Abstract: Quinaxolines (I, R2 = C1-4 alkoxy; Y = N(R4)-CO- NHR6, N(R4) CSNHR6, O-CO-NHR6 or O-CS-NHR6; R4 = H, C1-4 alkyl, benzyl, pyridylmethyl; R6 = C1-6 alkyl, phenyl, pyrideyl, ethoxycarbonylemthyl) were prepd. by reaction of quinazoline(II, A = NHR4, OH) and isocyanate(R6-N=C=O) or thioisocyanate(R6-N=C=S) at 25-200≰C in inert solvent Thus, 2.9 g 1-(6,7-dimethoxyquinazoline-4-yl)piperido-4-one and 1.19 g 2-amino-methylpyridine were refouxed in 50ml benzene for 2 hr to give 4-[4-(2-pyridylethyl-amino)piperidine -6,7- dimethoxyquinazoline.
Patent KR-830001671-B1 (KR)
Title: 자동 교정되는 부반송과 원격계측 전송장치
IPC: G01D18/00
Filed: 1980-03-22
Granted: 1983-08-23
Abstract: 내용 없음.
Patent KR-850000035-B1 (KR)
Title: Recorder
Inventor: SAITOO ETSUHIRO
IPC: G11B25/04
Filed: 1981-01-13
Granted: 1985-02-13
Abstract: The information signal recording producing appts. receives a jacket accommodating an magnetic disc so that a magnetic head can be inserted through an opening of the jacket to contact the rotating disc. The jack comprises an upper wall and a lower wall each provided with first devices cooperating with associated second devices in the appts. to hold the walls at predetermined positions, whereby the space between the walls is maintained constant.
Patent KR-850000139-B1 (KR)
Title: Fluorescent lamp device
Inventor: YOKOYAMA NOBUO
IPC: H01J61/72
Filed: 1981-02-21
Granted: 1985-02-27
Abstract: A fluorescent lamp, which is compatible with an incandescent lamp, consists of a transparent or semi-transparent outer case (1) covering a lamp (20), a screw part (3) which can be inserted into an incandescent lamp socket and holds a PTC (35) as an ballast, and a cap (15) that holds a starter (31). The PTC has a heat-sink (43) for radiating any overheating to maintain the necessary resistance in case of higher-voltage  of the rated power source.
Patent KR-850001155-B1 (KR)
Title: Amorphous metal sheet-fe-b-si alloy
Inventor: LESLIEAMS STUART
IPC: H01F1/16
Filed: 1981-05-04
Granted: 1985-08-16
Abstract: An amorphous metallic alloy strip has a width of over 1 inch, a thickness less than 0.003 inch, a relatively high saturation point, and low iron core loss. The alloy contains iron (77-80 atom.%), boron (13-16 atom.%), silicon (5-10 atom.%), and appended impurities. The strip has an iron core loss of less than 0.100 WPP at 12.6 kilogauss and 60 cycle, saturation over 15 kilogauss, and a coercive force of less than 004 oersted. The strip also has singular malleability and thermal stability despite the iron core loss.
Patent KR-880000786-B1 (KR)
Title: Process fpr preparing piperajine derivatives
Inventor: MASAKI TOMOH
IPC: A61K31/505
Filed: 1982-04-10
Granted: 1988-05-09
Abstract: Piperajine derivatives or its nontoxic salts, useful as prevention and treatment medicine for myocardial infarction, are prepared.  For example, mixchloromethylene solution (100ml) of t-Butoxycarbonyl-L- loycin monohydrate (9.96g) and N-hydroxy succininide (4.6g) and mother chloromethylene solution (50ml) of N, N'- dicyclohexylcarbodiimide (8.24g), and then, followed by stirring for 4hr. and cooling in ice and adding chloronethylene solution (50ml) of 1-(diphenylmethyl) piperajine (10.08g). t-Butyr -(S)-1-(4- diphenylethyl piperaj-1-nyl carbonyl)-3-methyl butylcarbamate is obtained by purifying and washing the above solution.
Patent KR-850001454-B1 (KR)
Title: Video disc player
Inventor: SHIBAIKE ANRITO
IPC: G11B15/665
Filed: 1982-06-23
Granted: 1985-10-05
Abstract: This device relates to a helical scan-type VTR, which has a capstan, fixed recording head and guide post perpendicular to an inclined plane. A cassette is mounted in parallel with a base plate. An optimal tape path for stable tape running and protection is provided by three inclined planes having different inclination directions and angle w.r.t. the plane of the base plate. A guide drum is arranged perpendicularly to the first inclined plane. A first guide post and an eraser head are arranged perpendicularly to the third inclined plane. The capstan, fixed recording head and a second guide post are arranged perpendicularly to the second inclined plane.
Patent KR-880002276-B1 (KR)
Title: Process for preparation of anti viral compounds
Inventor: SCHAEFFER HAWARD JOHN
IPC: A61K31/52
Filed: 1982-08-10
Granted: 1988-10-21
Abstract: Title compds. (I)[R=OH, amino; X=O,S!, useful as an antiviral agent, are prepd. by deblocking of the compds.  (II) [W, W'=H, blocking group; Y=H, blocking group; Z= -OY, -NHY!.  Thus, 600  l calf intestinal mucosa adenosin deaminase in (NH4)2SO4 is added to 0.5 g 2,6-diamino-9-[(2-hydroxy-1-hydroxymethylethoxy)methyl! purine in 10 ml H2O to give 9-[(2-hydroxy-1-hydroxymethyl ethoxy) methyl  guanine.
Patent KR-840001884-B1 (KR)
Title: The manufacturing method of ceramie fiber containg inorganic adhesive
Inventor: KANG PIL-GYU
IPC: C04B35/00
Filed: 1982-09-27
Granted: 1984-10-24
Abstract: An adiabatic tube for firing a briquet is manufd. by molding ceramic fibers with a binder. Bulky ceramic fibers(20%) are mixed, stirred, and pulped with an inorganic binder solution(80%), comprising colloidal silica, alumina sol, aluminum sulphate, pearlite, and bentonite in a tank. A tube-like mold, which is empty inside and has many small holes in it, is placed into the tank. Ceramic fiber accumulates on the outer surface of the mold when air is removed from the mold by a vacuum pump. The molded ceramic fiber is dried at 110- 120≰C and cut into the required shape. It insulates 90% of a heat radiated and can be used at 1200≰C.
Patent KR-840001388-B1 (KR)
Title: Potential method
Inventor: YOM DONG-HONG
IPC: H02M3/02
Filed: 1982-12-14
Granted: 1984-09-21
Abstract: Multi-capacitor banks (C0) connected in series and parallel are charged through transistors (Q1-10) by a switching control circuit(Sc).  the power source (Vp) is disconnected by turning off the transistors (Q1-3 or Q6-8), and the load(Rc) is connected by turning on the transistors (Q4-5 or Q9-10), so that the condensor are discharged to the load in a preset time.  After that, the transistor (Q4-5 or Q9-10) is turned off to separate the load and invert the connection of the capacitors.  Thus, continuous DC distributed voltage occurs.
Patent KR-910008345-B1 (KR)
Inventor: ESOAY DONALD L
IPC: C09J7/10
Filed: 1983-01-14
Granted: 1991-10-12
Abstract: 내용 없음.
Patent KR-870002079-B1 (KR)
Title: Tentering machine
Inventor: JYO HIDEYUKI
IPC: D06C3/02
Filed: 1983-01-31
Granted: 1987-12-03
Abstract: The invention provides an improvement of the tenter that straighted and tenter the band material running in a zigzag direction by adjusting the tentering member in the directions of back and forth, up and down or left and right.  The hollowed rotor shaft (2) of a motor (1) is provided with a nut member (11) coaxially fixed at at least one of the two ends, the member (11) having a receiver member (8) through which a screw shaft (7) is put to be screwed in the nut member and supported with its end on supports (13).
Patent KR-920006413-B1 (KR)
Inventor: OSATO KIYOSHI
IPC: G02B7/28
Filed: 1984-02-10
Granted: 1992-08-06
Abstract: 내용 없음.
Patent KR-890002529-B1 (KR)
Title: Communication safety system for data highway
Inventor: SCHUSS JACK A
IPC: G06F12/16
Filed: 1984-06-18
Granted: 1989-07-13
Abstract: The method concerns that the master data acquisition computer supervising the slave programmable controller does not change the status of registers which may cause the hazardous situations.  The memory part of the programmable controller is allocated as the buffer area accessing to the slave process control computer and the data acquisition computer.  During scanning each process control computer, the status of input and output registers are changed and the selected status is shifted from the buffer to corresponding area.  The data acquisition computer only accesses to the information in the buffer of each process control computer.
Patent KR-900008105-B1 (KR)
Title: Process for the preparation of a mixture of ethylene and butene-1
Inventor: MASCHMEYER DONALD M
IPC: C07C11/08
Filed: 1984-11-15
Granted: 1990-10-31
Abstract: Mixts. of ethylene and 1-butene are prepd. by reaction of C2H4 and trialkyl-al in a solvent in a boiling red reaction zone at 200-325 deg. C and 0.79-10.45 MPa using C2H4:Al ratio of 2002000:1. The solvent may be C8-40 inert hydrocarbon. The reaction is pref. carried out using excess C2H4 and a dil. soln. of Al, in a vertical reaction zone in which the hydrocarbon is heating to boiling at its lower end and cooled below it at the upper end. Ethylene copolymers are prepd. from a mixt. of C2H4 and 1-butene prepd. by separate dimerisation stage of in situ in the polymerisation reactor.
Patent KR-900005657-B1 (KR)
IPC: C07D215/00
Filed: 1984-11-17
Granted: 1990-08-03
Abstract: Compounds of the types (I) and (II) are disclosed, <CHEM> wherein each R5 is independently selected from the group consisting of alkyl of one to about four carbon atoms, alkoxy of one to about four carbon atoms and halogen, and n is an integer from 0 to 2, with the proviso that if n is 2, then said R5 substituents together contain no more than 6 carbon atoms; R6 is selected from the group consisting of hydroxyalkyl of one to about six carbon atoms and cyclohexylmethyl; and R7 is selected from the group consisting of alkyl of one to about four carbon atoms and hydrogen. These compounds may be used as intermediates for the synthesis of 1H-imidazo[4,5-c]quinoline derivatives.
Patent KR-890004102-B1 (KR)
Title: Trick signal generating device
Inventor: SONG SUN-KYUNG
IPC: H04N5/783
Filed: 1984-12-26
Granted: 1989-10-20
Abstract: The generator for optimal tracking of VTR with 3-heads during still or slow mode helps VTR to reproduce the image without noise. The generator generates 30Hz signal at normal reproduction, the high state signal at still reproduction mode and trick signal at slow reproduction mode.  The signal (S+S) which drops high to low at still and slow mode, high state pulses (6) for driving capstan motor which does not operate at still mode, and head switching pulse with 30Hz are utilized to generate the trick pulse.
Patent KR-950000004-B1 (KR)
Title: Coated abrasive product incorporating selective mineral substitution
Inventor: BROBERG DAVID E
IPC: B24D11/04
Filed: 1985-05-09
Granted: 1995-01-07
Abstract: Replacement of all or most of the coarse mineral in a coated abrasive product by a superior (and typically more expensive) mineral improves abrading performance significantly more than would be predicted. In some cases the performance is superior to that of products made with either mineral alone. Typically 5% to 30% of the total mineral weight is made up of the superior mineral.
Patent KR-890004181-B1 (KR)
Title: Keyboard devices
Inventor: YOSIDA MODOHIKKO
IPC: H03K17/967
Filed: 1985-06-19
Granted: 1989-10-23
Abstract: The keyboard does not suffer from problems of bad contacts which may occur in word-processors and personal computers.  The resiliently deformable spring (6) linked to a click member is disposed on a board (4) in a predetermined positional relationship.  The manual push member (6) is adapted to push to produce an acoustic signal.  The three pickups (13,14,15) are disposed on the board at different positions for sensing the acoustic signals produced by the manual push member (6).  The detecting circuit (17) determines the keyed position on the differences between arrival times of the acoustic signal at the pickups.
Patent KR-920010083-B1 (KR)
Inventor: BERRY NES W
IPC: B01J39/04
Filed: 1985-11-29
Granted: 1992-11-14
Abstract: 내용 없음.
Patent KR-900005342-B1 (KR)
Inventor: DAWADA YOSHIHEESA
IPC: H01L21/205
Filed: 1985-02-15
Granted: 1990-07-27
Abstract: 내용 없음.
Patent KR-900004764-B1 (KR)
Title: Signal processing circuit
Inventor: ISII TECHUO
IPC: H03G1/04
Filed: 1986-08-28
Granted: 1990-07-05
Abstract: The signal-processing circuit comprises two transistors for receiving two signals and a device for supplying an output signal. The first transistor is a MOSFET whose gate is connected to a device for receiving the first signal and whose current path is supplied to one end with a predetermined potential. The second transistor is an NPN bipolar transistor whose collector-emitter path is coupled at one end to the other end of the current path of the first transistor. The second transistor's other end is connected to a device for supplying the output signal whose base is coupled to the device for receiving the second signal.
Patent KR-920003387-B1 (KR)
Inventor: HAYAO HIRAI
IPC: G05B19/4063
Filed: 1986-10-24
Granted: 1992-04-30
Abstract: 내용 없음.
Patent KR-890004149-B1 (KR)
Title: Solenoid air valve
Inventor: CHON BYONG-IL
IPC: F16K31/06
Filed: 1986-10-27
Granted: 1989-10-21
Abstract: The solenoid air valve is used for supplying or discharging air in an automatic switching device or a reciprocting actuator. The valve comprises a lower body (1) having an air flow port (2), an air outlet (2a) fitted with a bolt (3) controlling the amount of discharged air, switching valves (7,7a) fitted with air-tight seals (6,6a) and mounted on a spring (9).  A middle body (1a) has a central air flow path (10), and an air outlet (11) fitted with a bolt (3a) controlling the amount of the discharged air.  An upper body (1b) has a magnet (13), an up/down movable pin (12), and an up/down actuating device (15).
Patent KR-940006321-B1 (KR)
Inventor: SHEFFIELD WARREN D
IPC: A61P31/04
Filed: 1986-11-27
Granted: 1994-07-16
Abstract: 내용 없음.
Patent KR-900001832-B1 (KR)
Inventor: KUNITAKA TADASHI
IPC: C22B7/00
Filed: 1986-04-24
Granted: 1990-03-24
Abstract: 내용 없음.
Patent KR-910004552-B1 (KR)
Inventor: JANCIS ELMAR H
IPC: C07C15/46
Filed: 1987-01-08
Granted: 1991-07-06
Abstract: 내용 없음.
Patent KR-960002313-B1 (KR)
Inventor: AHMAD ANEES
IPC: G02B7/198
Filed: 1987-04-24
Granted: 1996-02-16
Abstract: 내용 없음.
Patent KR-900003205-B1 (KR)
Title: Input circuit
Inventor: SHIRAI HIRONOBU
IPC: H03K17/78
Filed: 1987-04-30
Granted: 1990-05-10
Abstract: The input circuit comprises a photo-coupler and an indicator for indicating the presence of an input signal both of which are adapted for an AC input signal as well as a DC input signal of either polarity. The input end of the photo-coupler comprises a pair of light emittinng diodes which are connected in parallel with each other directionally opposite and the indicator comprises a pair of light emitting diode chips which are connected in a similar manner. The input circuit can be adapted to input signals of all kinds and the indication of the presence of an input signal is accurate because the indicator is directly driven by the input signal and is not affected by the condition of any external circuit.
Patent KR-900006276-B1 (KR)
Title: Resin composite
Inventor: KAKUDA TATSUYA
IPC: G02B6/44
Filed: 1987-06-13
Granted: 1990-08-27
Abstract: An optical fiber is coated with a first layer of resin (I) having negative linear expansion coefft. and a second layer of resin (II) having positive linear expansion coefft. Pref. (I) is composed of highly oriented resin or liq. crystal polymers. The liq. crystal polymers are thermoplastic with linear expansion coefft. of -10-5-105 per deg.C. Pref. (II) has positive linear expansion coefft. of 10-4 per deg.C or less. The resin combination undergoes little distortion with temp. chamge.
Patent KR-950008797-B1 (KR)
Inventor: SUKATA SHINSUKE
IPC: B23Q3/155
Filed: 1987-06-16
Granted: 1995-08-08
Abstract: 내용 없음.
Patent KR-950010817-B1 (KR)
Title: Process for producing of recombinant human psti
Inventor: OUGAWA IUICHIO
IPC: C12N15/09
Filed: 1987-10-14
Granted: 1995-09-23
Abstract: A process for the production of human PSTI which comprises transforming Saccharomyces cerevisiae with a vector bearing a gene encoding human PSTI and culturing the resultant transformant under appropriate conditions. The invention also includes a pure human PSTI, PSTI polypeptides with and without leader sequences and their use, and corresponding DNAs.
Patent KR-930007507-B1 (KR)
Title: Polymers containing imide groups prepared from sterically hindered diamines and process for the preparation thereof
Inventor: BATHELEMY PASCAL
IPC: C08F216/14
Filed: 1987-12-17
Granted: 1993-08-12
Abstract: Heat-stable polymers containing imide groups. These polymers are obtained by reaction between:  - (a) one or more N,N'-bismaleimides, - (b) one or more hindered diprimary diamines of the 4,4'-diamino- 3,3',5,5'-tetraalkyldiphenylmethane or 1,3- or 1,4-diamino- trialkylbenzene type, - (c) optionally one or more monomers other than a bisimide and containing one or more polymerisable carbon-carbon double bonds,  - (d) and optionally a compound of the imidazole type. These polymers are employed especially for the production of moulded articles, laminates and articles with a cellular structure.
Patent KR-910000056-B1 (KR)
Inventor: HASHIMOTO KAZUO
IPC: D06N7/00
Filed: 1987-12-31
Granted: 1991-01-19
Abstract: 내용 없음.
Patent KR-910003495-B1 (KR)
Inventor: JOHANSSON HANS VILHELM
IPC: H04M19/00
Filed: 1987-04-28
Granted: 1991-06-01
Abstract: 내용 없음.
Patent KR-930003414-B1 (KR)
Title: Magnetic cards detection control method
Inventor: YUN SUNG-SOP
IPC: G06K13/06
Filed: 1988-01-30
Granted: 1993-04-29
Abstract: The method detects stolen  or  lost  cards  when  the  secret number entered by a  user  doesn't  match  to  the  secret  number recorded in a card through several trials. It includes  a  sensing section (15) composed of photo sensors (15a,15b), a motor  driving section (17) for controlling a feed motor  (7)  according  to  the output of the sensing section (15), a  magnetic  reader  (16)  for amplifying, filtering and converting the analog signal  picked  up by a head (6) to digital signal, and  a  central  processing  unit (11) for controlling the system according to the key signal  of  a key inputting section (14).
Patent KR-900002041-B1 (KR)
Title: Process for preparing quinolone derivatives
Inventor: KU BON-AM
IPC: C07D401/04
Filed: 1988-02-15
Granted: 1990-03-31
Abstract: Antibactericidal 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7piperazino quinolin-3-carboxylic acid (I:R=H, C1-4 lower alkyl, acyl, alkoxycarbonyl) is prepd. by 7-halo-1-cyclopropyl-6-fluoro1,4- dihydro-4-oxoqunolin-3-carboxylic acid (II:R1=H, C1-4 lower alkyl; X= F,Cl,Br) and piperazine (III) in the presence of inert organic solvent, and catalytic mixt. of I2 and IV (R2,R3,R4,R5= alkyl, aryl; A=N,P;B=halide) followed by converting to its pharmaceutical salt.
Patent KR-960000799-B1 (KR)
Inventor: EMOTO TAKAO
IPC: H01L25/18
Filed: 1988-02-23
Granted: 1996-01-12
Abstract: 내용 없음.
Patent KR-960013077-B1 (KR)
Inventor: LAMBIE IAN ANDREW
IPC: C09C3/08
Filed: 1988-09-30
Granted: 1996-09-30
Abstract: 없음.
Patent KR-940003039-B1 (KR)
Title: Light control circuit for camcorder
Inventor: CHOE YONG-HUN
IPC: H04N5/235
Filed: 1988-10-31
Granted: 1994-04-11
Abstract: The circuit is for controlling on-off and density of light equipped in a camcorder by operating modes of a camcorder and a peripheral luminance. The circuit includes a record signal delay circuit for delaying record start signal using RC time constant and a comparator (OP1), a light on/off controller for controlling light on/off with an auto and manual switch, a luminance detector for detecting peripheral luminance using a luminance detecting device (CDS1), and a dimmer for controlling brightness of the light by the peripheral luminance and the on/off control signal.
Patent KR-910008141-B1 (KR)
Inventor: MAEDA TAKAYA
IPC: C21B13/14
Filed: 1988-12-07
Granted: 1991-10-10
Abstract: 내용 없음.
Patent KR-910005790-B1 (KR)
Inventor: BATAILLE CHRISTIAN
IPC: H03K17/13
Filed: 1988-05-20
Granted: 1991-08-03
Abstract: 내용 없음.