baber/WOPTO huggingface dataset:
Patent KR-810000394-B1 (KR)
Title: Manufacturing method for hard contact lens material
Inventor: LEE MOO KUL
IPC: C08F10/00
Filed: 1978-07-06
Granted: 1981-04-27
Abstract: The title polymers, useful for prepn. of contact lenses, are made by copolymn. of 100 cellulose acetylate copolymer and 50 monomer selected from methacrylic acid ester, hydroxyethylmethacrylate, ethyleneglycoldimethacrylate, polyvinylpyrrolidone, and styrene acrylate with 0.1 wt.% azobisisobutylonitryl or benzoylperoxide at 20-120≰C in inactive gas. The O permeability of the product was 3.15×100-10(ml O2/mlxmmHg) at 30≰C, where that of conventional PMMA was 0.02×10-10.
Patent KR-820001804-B1 (KR)
Title: Improvements in and relating to rackets
Inventor: EPSTEIN D
IPC: A63B49/00
Filed: 1979-08-04
Granted: 1982-10-12
Abstract: Racket(10) has head(12), handle(14), two parallel side parts of the frame and semicircle-shape edge parts of it.  The length of the racket is nearly like that of conventional rackets.  But the length of handle(14) is very short and most of it is composed of grip(15).  It is desirable that the length of grip is long enough to play tennis with a racket held by two hands.  Sweet spot(28) dotted in figure 1 forus long area to the axial direction(26).  The gut of the racket makes an angle of 45≰ so that it has advantage of stronger spin over the ball than before.
Patent KR-830002367-B1 (KR)
Title: 은-담체 촉매의 활성화 또는 재생방법
IPC: B01J23/66
Filed: 1980-02-12
Granted: 1983-10-25
Abstract: 내용 없음.
Patent KR-830002654-B1 (KR)
Title: 신호 처리회로
IPC: H04N9/78
Filed: 1980-05-12
Granted: 1983-12-06
Abstract: 내용 없음.
Patent KR-830001072-B1 (KR)
Title: 이동검지형 초전검출기
IPC: G08B13/18
Filed: 1980-06-11
Granted: 1983-06-01
Abstract: 내용 없음.
Patent KR-840000297-B1 (KR)
Title: Preparation of aryl-ethers
Inventor: SOULA GERARD
IPC: C07C41/00
Filed: 1980-06-20
Granted: 1984-03-16
Abstract: Preparation of aryl-ethers comprises reacting (a) aliphatic halides with (b) phenolates or naphtholates of alkali metal, alkaline metal, or ammonium in an organic solvent in the presence of at least one sequesting agent of formula N-(CHR1-CHR2-O-(CHR3-CHR4-O) ! n-R5)3 where n= an integer of 1-10, R1,R2,R3,R4 = same or different, H or C1-4 alkyl, R5 =C1-12 alkyl or cycloalkyl, phenyl, -CmH2mP or CmH2m+1-Φ, m= 1-12.
Patent KR-850001133-B1 (KR)
Title: Process for preparing antipepsine
Inventor: KOJIMA SHINICHI
IPC: C07K5/06
Filed: 1981-03-30
Granted: 1985-08-09
Abstract: An acidic protease inhibitor is obtained from Me2CHCH2 COXYNHCH(CH2CHMe2)CH(OH)CH2CONHCHMeCONHCH(CH2CHMe2)CH(OH)CH2CO2H (I), where X and Y = L-leucine or L-valine, with an Al compd. such as AlCl3, in an aq. or alc. or aq.-alc. medium with further reaction after adjusting the pH to 4.5-7. The protease inhibitor is effective in the treatment of chronic ulcers. I (X=Y= L-leucine) with an Al content of 14.7% was prepd. and showed an antipepsin effect (ID50, the amt. required for inhibiting crystalln.) 4  g pepsin by 50%) of 0.07  g and showed an antacid power to consume 135 mL 0.1 N HCl/g.
Patent KR-830000316-B1 (KR)
Title: 표면효과가 우수한 인공스웨드 및 그 제조방법
IPC: D06N3/14
Filed: 1981-12-28
Granted: 1983-03-02
Abstract: 내용 없음.
Patent KR-900001680-B1 (KR)
Title: Temperature-responsive pacifier assembly
Inventor: BERNDT DIETER R
IPC: G01K11/16
Filed: 1983-02-11
Granted: 1990-03-19
Abstract: The nipple assembly comrises a pacifier body (10) including a nipple portion (12) having a chamber (20) containing a temperature- responsive substance (28), characterised in that the temperature- responsive substance is a liquid crystalline composition (28) displaying a color change at a temperature above 37 deg. C; that the liquid crystalline compsn. (28) is encapsulated within a capsule (26) and that the chamber (20) is sealed and includes a liquid (30) inert to the capsule (26), the capsule being movable in the inert liquid.
Patent KR-910000725-B1 (KR)
Inventor: BAUER KLAUS
IPC: A01N57/24
Filed: 1983-09-08
Granted: 1991-01-31
Abstract: 내용 없음.
Patent KR-880002035-B1 (KR)
Title: Masticatory soft elastic gelating capsules
Inventor: EBERT WILLIAM R
IPC: A61K9/48
Filed: 1983-12-21
Granted: 1988-10-13
Abstract: A soft elastic gelatin (SEG) capsule is prepd.  Thus, 25% natural chewing material is dissolved in a mxit. contg. 24% HB-type gelatin, 11% glycerin, and 37% H2O.  The resulting mixt. is blended with 3% taste controlling agents to give a dissolved gel clod, which is maintained at 60≰C until capsulation.
Patent KR-860000181-B1 (KR)
Title: Mistake prevention device of warp accident perception machine in a loom
Inventor: RYU SHI-MAN
IPC: D03D51/28
Filed: 1984-02-27
Granted: 1986-02-28
Abstract: A sensor for detecting a  warp fault prevents error caused by noise. An effective signal which length is greater than 1 msec. is gathered at the second logic gate(9) and returned to the first logic gate(8) until the output of the counter to be zero so that the effective length is prolonged than before. Noise signal which length is less than 0.5 msec. is demolished because the counter is turned off.
Patent KR-860002123-B1 (KR)
Title: Manufacturing method of stranded wire and its device
Inventor: SHIN KYONG-CHIL
IPC: H01B13/02
Filed: 1984-06-05
Granted: 1986-11-26
Abstract: A stranding device strands a string to the wire of an opposed direction as soon as the wire is stranded. A paper tape stranding device is established at the rear portion of the capstan device, which strands the wires. The paper tape stranding device surrounds the paper to the string stranded wire continuously. This wire is winded to a bobbin. The same rotating speed of the capstan device and the wire winding device to a bobbin smooths the winding motion of the stranded wire. And the speed improves the winding state of the paper and the string.
Patent KR-860000863-B1 (KR)
Title: Intermittent driving apparatus of belt of automatic screen textile priting machine
Inventor: ICHINOSE SHIROO
IPC: B41F15/24
Filed: 1984-06-16
Granted: 1986-07-11
Abstract: This invention is concerned with the intermittent driving apparatus of automatic screen textile printing machine belt which is operated by both a digital control mechanism and an electrical lock mechanism. The digital control mechanism is applied to control the driving roller of the belt and the electrical lock mechanism is applied to stop it. The apparatus comprises a data setting device which sets transfer speed and acceleration/deceleration speed (9), a digital DC servo device (10), a position detector(11), and a DC motor (5). The intermittent driving is done by driving(5) using (9), (10), (11). The electrical lock circuit is formed among (11), (10), (5).
Patent KR-920002158-B1 (KR)
Inventor: MIJYOBUJI SYODARO
IPC: F16C17/04
Filed: 1984-11-14
Granted: 1992-03-12
Abstract: 내용 없음.
Patent KR-890003561-B1 (KR)
Title: Disk driving apparatus
Inventor: SYOZI MAKOTO
IPC: G11B19/10
Filed: 1985-01-16
Granted: 1989-09-23
Abstract: The apparatus includes a turntable mounted on a drive spindle which is engageable in the first opening in the hub of the magnetic disc loaded on the turntable.  A retractable drive pin is mounted eccentrically on the turntable so as to be sprung into engagement in the second opening in the disc hub upon register. To ensure engagement of the drive pin in the second opening in the disc hub immediately upon loading of the magnetic disc on the turntable, a disc drive motor for driving the turntable via the drive spindle is connected to a supply terminal, a switch control circuit closes the power control switch, for causing the rotation of the turntable relative to the magnetic disc.
Patent KR-940004750-B1 (KR)
Inventor: MISEVICH KENNETH W
IPC: A43B5/00
Filed: 1985-03-13
Granted: 1994-05-28
Abstract: 내용 없음.
Patent KR-920010663-B1 (KR)
Inventor: VRIENDEZ RINDERT
IPC: H01J29/00
Filed: 1985-05-31
Granted: 1992-12-12
Abstract: 내용 없음.
Patent KR-920004890-B1 (KR)
Inventor: GRAVES DANIEL F
IPC: C08K5/35
Filed: 1985-09-20
Granted: 1992-06-22
Abstract: 내용 없음.
Patent KR-910010215-B1 (KR)
Inventor: HIROKA HIROSI
IPC: D06F37/30
Filed: 1986-01-27
Granted: 1991-12-21
Abstract: 내용 없음.
Patent KR-940004543-B1 (KR)
Title: Method of producing vector
Inventor: ENGELS YOHAIM
IPC: C12P21/00
Filed: 1986-04-19
Granted: 1994-05-25
Abstract: For the contracting states : BE, CH, DE, GB, IT, LI, LU, NL, SE 1. DNA segment of the trp operon from E. coli, characterized by the sequence (coding strand) I 5' CTATCGACC 3' (I) which is connected at the 5' end to the Shine-Dalgarno sequence AAGG, and at the 3' end to the start codon ATG. For the contracting state : AT 1. A process for the preparation of a vector having the trp expression system of E. coli, characterized by cleavage with the restriction enzyme Nco l of an E. coli vector which contains the DNA sequence I 5' GTATCGACC 3' (I) (coding strand) followed by 5' ATGG 3', and a) ligation of a gene structure of DNA sequence II 5' CATG X... 3' 3'      Y... 5' (II) in which X and Y denote the first complementary pair of nucleotides downstream of the start codon of a structural gene, in the cleavage site, or b) enzymatic filling in of the cleavage site and ligation of the DNA of the sequence III 5' GTA TCG ACC ATG 3' (III) 3' CAT AGC TGG TAC 5' with a DNA of the sequence IV 5' X... 3' (IV) 3' Y... 5' in which X and Y have the abovementioned meaning, or c) enzymatic degradation of the protruding sequence of the cleavage site, and ligation of the DNA of the sequence VI 5' GTA TCG AC 3' (VI) 3' CAT AGC TG 5' with a DNA of the sequence VII 5' Z ATG X... 3' (VII) 3' Z'TAC Y... 5' Z and Z' denoting any desired pair of nucleotides, which can also be dispensed with.
Patent KR-950002603-B1 (KR)
Inventor: CHANG WEN-HSUAN
IPC: C08G18/08
Filed: 1986-04-25
Granted: 1995-03-23
Abstract: 내용 없음.
Patent KR-900009042-B1 (KR)
Inventor: YOSIOKKA HIROSI
IPC: C09D7/65
Filed: 1986-08-21
Granted: 1990-12-17
Abstract: 내용 없음.
Patent KR-910009202-B1 (KR)
Title: Making method of porpiriun derivatirus
Inventor: SAKATA ISAO
IPC: A61K31/40
Filed: 1986-10-23
Granted: 1991-11-04
Abstract: A porphyrin compound of the formula:wherein R<sub>1</sub> and R<sub>2</sub> are each -CH=CH<sub>2</sub>, -CH<sub>2</sub>CH<sub>3</sub>, -CH(O-lower alkanoyl)CH<sub>3</sub>, -CH(OR)CH<sub>3</sub> or -CH(O-lower alkylene-OR)CH<sub>3</sub>; R<sub>3</sub> is -H, -COOH, -COO-lower alkyl, -COO-lower alkylene-OR or -COO-lower alkylene -OOC-Z; R<sub>4</sub> is -H, -lower alkyl or -lower alkylene-OR; R is -H, -lower alkyl or a residue of a polyfunctional carboxyl compound exluding a hydrogen atom therefrom; Z is a residue of the compound of the formula (I) excluding R<sub>3</sub> therefrom; A is -CH<sub>2</sub>- or-CO-; and the dotted line from the gamma-position indicates no bonding or a single direct bond; and the dotted line between the 7- and 8-positions indicates the presence of a single bond or a double bond; and its complexes with a metal(s) in the porphine skeleton and/or at the residue of the polyfunctional carboxyl compound, at least one of R<sub>1</sub>, R<sub>2</sub>, R<sub>3</sub> and R<sub>4</sub> being a group containing R which represents the residue of the polyfunctional carboxyl compound and R<sub>1</sub> being capable of representing 1-iodoethyl in addition to said meanings when R<sub>3</sub> is -COO-lower alkylene-OOC-Z, which shows a high accumulation in the locus of cancer with quick excretion from normal tissues.
Patent KR-900000700-B1 (KR)
Title: Electronic cash register
Inventor: MUNAKATA KASHIKO
IPC: G07G1/12
Filed: 1987-02-10
Granted: 1990-02-07
Abstract: The register utilizing a scanner for detecting the bar code printed in the goods for registering the data about the goods comprises a bar code reader, a first memory for storing price data of the goods on which the source markings are attached, a second memory for storing data related to the price discount of goods on which the instore markings are attached, and a registering process for registering the price data recorded on the source marking and registering the price discount data recorded on the instore marking.
Patent KR-940010336-B1 (KR)
Title: Process for polymerization in aqueouis dispersion of fluorinated monomers
Inventor: GIANNETTI ENZO
IPC: C08F14/18
Filed: 1987-04-29
Granted: 1994-10-22
Abstract: A process for polymerizing or copolymerizing fluorinated monomers, in an aqueous dispersion, by the use of radical starters and of fluorinated surfactants, characterized by working in the presence of a perfluoropolyether having neutral end groups, being liquid under the polymerization conditions and in the form of an aqueous emulsion, in order to increase the polymerization rate.
Patent KR-910005853-B1 (KR)
Inventor: NAKAO TORU
IPC: C07D495/04
Filed: 1987-05-28
Granted: 1991-08-05
Abstract: 내용없음.
Patent KR-910002140-B1 (KR)
Inventor: MITSUBAYASHI YOSHIHIKO
IPC: A23G9/52
Filed: 1987-06-05
Granted: 1991-04-06
Abstract: 내용 없음.
Patent KR-900002174-B1 (KR)
Title: Hair line type stamping hoil forming synthetic resin layer
Inventor: CHUN TEA-IL
IPC: B32B15/00
Filed: 1987-06-08
Granted: 1990-04-02
Abstract: A hair line type stamping foil consists of synthetic resin film (1); release layer (2); color layer (3); hair line layer (4) formed by a sandpaper; resin layer (5) of acryl resin 40-70 wt.% and vinyl resin 30-60 wt.% (0.1-0.5 micron thick); metallic layer (6); and adhesive layer (7).
Patent KR-900006169-B1 (KR)
Title: Cathod ray tube
Inventor: DAKAHARA DAKESI
IPC: H01J29/20
Filed: 1987-07-03
Granted: 1990-08-24
Abstract: The tube has a fluorescent screen comprising 5-15 wt.% of blue luminous substance (A) represented by (Y1-x-yGdxTby)202S (x= 0-1, y= 0.000001-0.01(; 5-15 wt.% of blue luminous substance (B) selected from silver-activated hexagonal zinc sulphide represented by ZnS:Ag, silver-scandium-activated cubic zinc sulphide represented by formula ZnS:Ag, X in which X= at least one of Ga, In or Sc and silver- activated cubic zinc-scandium oxide represented by ZnS.xSc203:Ag (x= 1 x 10 power -5 to 8 x 10 power -2); and 70-90 wt.% yellow luminous substance (C) represented by In1-p-q -rMpTbgEurB03 in which M = at least one of Sc, Lu, Y, La, Gd or Ga, p= 0.02, q= 0.0005-0.05 and r= 0.001-0.1. The fluorescent substance comprising (A), (B) and (C) or (A), (B) and (D) is non toxic, and has superior flicker, current saturation, and luminescence properties.
Patent KR-900007587-B1 (KR)
Inventor: GONDO YUUJI
IPC: G08C19/00
Filed: 1987-07-24
Granted: 1990-10-15
Abstract: 내용 없음.
Patent KR-910001540-B1 (KR)
Inventor: KASAI YOSHIHIKO
IPC: H04W16/24
Filed: 1987-07-25
Granted: 1991-03-15
Abstract: 내용 없음.
Patent KR-900003291-B1 (KR)
Title: Process for the production of irregular crevice foam and node
Inventor: KIM DONG-IL
IPC: B29C67/04
Filed: 1987-07-29
Granted: 1990-05-14
Abstract: A method for manufacturing an artificial woodwork comprises forming an irregular crevice shape and node by heating the material surface of a plasticized rigid vinyl chloride with a flame of at lenst 600≰C , coating the surface with a black lacquer. The woodwork has a good natural and classical beauty.
Patent KR-890005200-B1 (KR)
Inventor: PETERSEN UWE
IPC: C07D401/04
Filed: 1987-08-05
Granted: 1989-12-18
Abstract: 내용 없음.
Patent KR-910004734-B1 (KR)
Inventor: SATO KIMIAKI
IPC: G11C7/22
Filed: 1987-09-18
Granted: 1991-07-10
Abstract: 내용 없음.
Patent KR-930001859-B1 (KR)
Inventor: OGISU YASUHIKO
IPC: B60B7/04
Filed: 1987-10-05
Granted: 1993-03-18
Abstract: 내용 없음.
Patent KR-900005491-B1 (KR)
Inventor: CHOI CHA-BONG
IPC: G06F17/21
Filed: 1987-12-23
Granted: 1990-07-30
Abstract: 내용 없음.
Patent KR-940000230-B1 (KR)
Title: Process for preparing micro capsules
Inventor: EKMAN BO M
IPC: B01J13/02
Filed: 1986-10-06
Granted: 1994-01-12
Abstract: The invention relates to a completely novel type of micro-capsules, viz. such capsules where an encapsulated hydrophobic or lipophilic substance is surrounded by polar solid crystals of polar lipids which expose their hydrophilic face outwards and their hydrophobic face turned inwards towards the hydrophobic or lipophilic substance. These micro-capsules can be utilized to encapsulate for instance tacky substances or substances to be protected against oxidation or influence from light. Moreover, an especially interesting use according to the invention is the use of said micro-capsules in an ointment base, where the active ingredient is well protected within said capsules up to the use but which at the application on the skin directly comes into contact with the skin surface as a consequence of the crystalline structure of the shell. Furthermore, the invention relates to a special micro-capsule composition in the form of a dispersion of said micro-capsules in water or a polar liquid, where the crystals constitute 5-50 percent by weight and water or the polar liquid 50-95 percent by weight. Moreover, the invention relates to a process for the preparation of said micro-capsules, wherein a mixture of said polar lipid with water or polar liquid is formed, the mixture is heated above the transition temperature of the lipid and the mixture is then cooled to the desired temperature so as to obtain crystallization, the hydrophobic or lipophilic substance being added before or during the liposomic phase. Finally, the invention relates to a crystal dispersion of the polar lipid in a polar liquid, such as glycerol, ethylene- or propylene glycol.
Patent KR-880001024-B1 (KR)
Title: Data transmission system
Inventor: BYRNS JOHN P
IPC: H04B14/04
Filed: 1988-04-28
Granted: 1988-06-14
Abstract: Data signal are transmitted by a transmitter utilising the four possible two-bit binary states of the true data and complement data signal lines.  Of the four two-bit binary states, a word state is provided before and after the data signal and a one state or zero state followed by a bit state is provided for each bit of the data signal.  The data receivers detect the bit state to recover a bit clock signal and detect the one state and zero state bit clock signal and detect the one state and zero state to recover an NRZ data signal.  The transmission scheme is selfclocking and highly immune to speed and timing variations in the transmission.
Patent KR-920002656-B1 (KR)
Inventor: KISHIMOTO ISAO
IPC: F02D41/00
Filed: 1988-10-05
Granted: 1992-03-31
Abstract: 내용 없음.
Patent KR-970002765-B1 (KR)
Inventor: SMITH BOBBY JOE
IPC: H04N5/00
Filed: 1988-12-08
Granted: 1997-03-10
Abstract: 내용없음.
Patent KR-910006711-B1 (KR)
Title: Thin film manufacturing method and its device
Inventor: SONG HO-GEUN
IPC: H01L49/00
Filed: 1988-12-17
Granted: 1991-08-31
Abstract: An apparatus for mfg. a thin film using the vacuum deposition by resistance  heating  includes  a  substrate  heat  (100)   for controlling the temp. of the substrate (80),  a  substrate  holder and a mask (70) in the upper  of  the  vacuum  container  (15),  a shutter (6) for controlling the deposition time in the  middle  of the container (15), and a resistance heating material (40)  having the quartz tube (3) inserted with a depositing material (2) in the lower of the container (15).  The  thin  film  is  formed  on  the substrate by heating and evaporizing the depositing material.
Patent KR-910006848-B1 (KR)
Inventor: KIM GI-IL
IPC: B60R22/46
Filed: 1989-01-25
Granted: 1991-09-07
Abstract: 내용 없음.
Patent KR-930003668-B1 (KR)
Title: Swageable tubular member
Inventor: LACEY RAYMOND D
IPC: F16B19/05
Filed: 1989-10-19
Granted: 1993-05-08
Abstract: A swageable tubular member 12 for a pin and swageable member fastener of the type which carries a plurality of combination lock and breakgrooves, is provided with a projecting skirt 32 at that end of the collar which, in use, is remote from the workpieces and is the first to be swaged towards the pin. The skirt 32 is of reduced wall thickness, having an internal diameter which is greater than that of the remainder of the bore of tubular member, which it meets at an annular shoulder 34 which is substantially at right-angles to the bore axis. When the tubular member is swaged on to the pin, the skirt 32 does not engage the pin but projects beyond the pin-break which occurs adjacent the shoulder 34.
Patent KR-0173110-B1 (KR)
Inventor: KOBAYASHI YUKIO
IPC: B29D11/00
Filed: 1989-12-26
Granted: 1999-05-01
Abstract: 내용 없음.
Patent KR-910005052-B1 (KR)
Title: Apparatus for coating a substrate
Inventor: LINDNER GEORG H
IPC: C03C17/245
Filed: 1988-05-17
Granted: 1991-07-22
Abstract: A coating applicator is provided for depositing a film on a surface of glass and other substrates by chemical vapor deposition. The applicator includes a pair of opposing coating nozzles for applying a vaporized coating chemical reactant in a carrier gas to the surface at such a concentration and velocity that coating of the surface is achieved under substantially reaction rate controlled conditions. Each coating nozzle is positioned adjacent the surface with a small clearance therebetween which is open to the outside atmosphere. The opposing coating nozzles are directed toward each other at a selected angle with respect to a normal to the surface of the substrate. The angle and the clearance provides a condition where there is substantially no intermixing of coating vapors with the outside atmosphere.
Patent KR-970005004-B1 (KR)
Title: Mucin directed liposome
Inventor: GEHO W BLAIR
IPC: A61K9/127
Filed: 1989-02-24
Granted: 1997-04-11
Abstract: Mucin coated Sepharose is used as a laboratory model to measure the affinity of a postulated lipid composition in liposome configuration for binding to mucin. The preferred lipid composition provides a first lipid moiety which projects a postive charged ion. A second lipid moiety enhances the positive charge by neutralizing all intermediate negative charges of the first lipid. The result is a liposome with strong postive charge areas which will bind to mucin.
Patent KR-0141364-B1 (KR)
Inventor: EMMRICH GERD
IPC: C10G7/08
Filed: 1990-01-11
Granted: 1998-06-15
Abstract: 내용없음
Patent KR-930000381-B1 (KR)
Title: Cathod structure of magnetron
Inventor: BAEK KI-MUN
IPC: H01J23/05
Filed: 1990-04-13
Granted: 1993-01-16
Abstract: The magnetron cathodic structure comprises a pair of end-hats (2,3) fixed at the both end of a  filament  (1),  the  lead  lines (4,5) fixed at the end of end-hat (3). The cathodic structure  has an insulating element (17) formed with concave  grooves  (17M,17N) at the upper surface of protrusion part (17C) fixed to insert  the other  ends  of  the  lead  lines  (4,5),  nickel  coating  layers (17J,17K) formed separately on the circumference of concave groove (17M,17N), the lead lines being inserted in  through-holes  formed at the insulating element (17).
Patent KR-930004823-B1 (KR)
Title: Scrambling and descrambling circuit of television signal
Inventor: MUN HON-HUI
IPC: H04N7/169
Filed: 1990-04-14
Granted: 1993-06-08
Abstract: The circuit for scrambling an input TV video signal comprises an address  generating  unit  (200)  for  detecting  synchronizing signals from the input video signal to  generate  a  pseudo-random address and a sequential  address  respectively  as  the  unit  of field, and a memory unit for  pseudo-randomly  writing  the  video signal, and for sequentially reading the recorded  video  signals. The address generator  unit  includes  a  synchronizing  separator (201), a line counter (203), a first ROM  (204),  a  synchronizing oscillator (202), a first counter (205), a  second  ROM  (209),  a second counter (206), a flip-flop (207), and selectors  (211,212). The memory unit includes a first RAM (210) inputting the  selector (211) outputs, and a second RAM (213) inputting the selector (212) outputs, thereby reducing the number of elements.