baber/WOPTO huggingface dataset:
Patent ES-2544519-B1 (ES)
Title: Quinazolinas S-sustituidas y sus aplicaciones terapéuticas para el tratamiento de enfermedades mediadas por PDE7
Inventor: GIL AYUSO-GONTAN CARMEN BELÉN
IPC: C07D239/91
Filed: 2015-05-22
Granted: 2016-03-04
Abstract: Quinazolinas S-sustituidas y sus aplicaciones terapéuticas para el tratamiento de enfermedades mediadas por PDE7.#La presente invención se refiere a una familia de derivados de quinazolinas S-sustituidas que presentan actividad inhibitoria de la enzima fosfodiesterasa 7 (PDE7), útiles para el tratamiento o prevención de enfermedades mediadas por dicha enzima, especialmente enfermedades inflamatorias, neurodegenerativas, neurológicas, psiquiátricas y/o autoinmunes.
Patent ES-2648342-B1 (ES)
Title: Tecnología textil ponible con publicidad dinámica
Inventor: PANIZO DE PABLO SUSANA
IPC: H04L1/00
Filed: 2016-06-29
Granted: 2018-10-10
Abstract: La presente invención, tecnología textil ponible con publicidad dinámica, permite insertar la publicidad dinámica en las prendas de vestir, adaptándose a los diferentes tamaños y diseños de cada tipo de prenda deportiva1 permitiendo una mayor visibilidad en las retransmisiones deportivas audiovisuales.#Se pueden incluir el número de patrocinadores que se deseen durante la retransmisión del evento, eligiendo el espacio físico de cada prende deportiva en la que vaya a aparecer la publicidad.#Adicionalmente, se puede seleccionar el tiempo que se destine a los patrocinadores o el momento, en función del desarrollo del evento deportivo que se esté retransmitiendo.#Los componentes se insertan en el propio tejido de la prenda deportiva, que están especialmente diseñados para que sean flexibles, perfectamente ponibles y lavables.#Los elementos que lo componen son una pantalla flexible de tinta electrónica, fina, lavable, y con alto contraste para excelente visibilidad, un microcontrolador (con un tamaño aproximado de 10 x 10 x 10 mm), que permite el procesamiento de la información, mediante la comunicación wifi y bluetooth, y una batería fina (100 x 50 x 1 mm), con una autonomía superior a una hora.#Aparte de estos elementos, la invención incluye una tableta para el envío remoto de las secuencias de imágenes que queramos proyectar en la prenda deportiva, que incluye una app de gestión de dicha información.
Patent HR-P20040019-B1 (HR)
Inventor: GILA JANOS
IPC: G07B1/00
Filed: 2004-01-09
Abstract: Postupak za kontrolu pravilnog pogona naprave za naplatu (BEV) za vozila (FAR) koja imaju oznaku vozila (KEN), ostvaruje se najmanje jedan unaprijed zadani optički uzorak/signal (MUS) na vozilu (FAR), koji je karakterističan za radno stanje naprave za naplatu (BEV), naznačen time, da se kontrolira stanje ovlaštenja za korištenje (BER) u vrijednosnoj kartici (WEK) ili u obračunskom centru (ABZ) kao i stanje uključenja/isključenja naprave za naplatu (BEV), pri čemu ovlaštenje za korištenje (BER) može biti izvedeno kao unaprijed zadani kredit (GUT) za prispjeli naplatni dug (GEB), kao vremenska kartica (ZEI) za korištenje odabranih naplatnih cesta (STR) u određenom vremenskom razdoblju, kao kredit za cestu (SGH), kao vremensko ograničenje, itd., a prema želji vozača vozila, ovlaštenje za korištenje (BER) se prenosi kao kôd (COD) u napravu za naplatu (BEV), pri čemu se kôd (COD) prenosi zaključano. Patent sadrži još 13 patentnih zahtjeva.
Patent JO-1782-B1 (JO)
Title: Method and apparatus for disposal and treatment of waste
Inventor: DEAN OSMAN CAMERON
IPC: C05F17/02
Filed: 1993-09-13
Granted: 1994-05-15
Abstract: Organic waste disposal treatment apparatus (10) includes a treatment chamber assembly (11) in which a compost bed (12) may be formed, an inlet (21) to the treatment chamber assembly (11) through which organic waste may be added to the compost bed (12) in the treatment chamber assembly (11), ventilation means (28) for promoting aerobic digestion of the compost bed (12) in the treatment chamber assembly (11), drainage means (43) for preventing waste material in the treatment chamber assembly (11) from becoming anaerobic and access means (39, 40, 41) for accessing and removal of compost formed in the treatment chamber assembly (11). The treatment chamber assembly includes a holding tank (11) formed of plastics material, the access means (39, 40, 41) includes a closed conveyor (40) for conveying compost from the lower zone of the compost bed (12).; The treatment chamber assembly (11) may include an air permeable division (38) for dividing a duct (15) from the compost bed (12). It is also preferred that the holding tank (11) be partially filled with an active bed of compost.
Patent KR-790000124-B1 (KR)
Title: Process for preparing 3-halomethyl- 3-cephalos porin esters and slefoxides
Inventor: MURPHY C F
Filed: 1975-03-26
Granted: 1979-03-20
Abstract: 3-hydroxymethyl-Δ3-cephalosporin sulfoxide ester was reacted at about -75≰C ˜ 50≰C with PCL5, PBr5, POCl3 or POBr3 in the presence of tert-amine dissolved in anhyd. diln. agent to give I (3-halomethyl-Δ3-cephalosporin esters and sulfoxides).  0.110g tert-burtyl-3-hydroxymethyl)-7-phenoxy acetamid-Δ3-cephem-4-carboxylate-1-oxide was chlorinated with 0.060g PCl5 at 25≰C to give 0.035g tertbutyl-3-chloromethyl-7-phenoxy acetamid-Δ3-cephem-4-carboxylate-1-oxide. I is useful as an intermediate for manufg. antibacterial agents.
Patent KR-790001558-B1 (KR)
Title: Anti-fouling marine compositions
Inventor: ALEXANDER MILNE
Filed: 1976-01-05
Granted: 1979-10-30
Abstract: Anti-fouling marine compositions (I; R1, R2 = alkyl, allyl, vinyl, n = integer) composed of oligomeric silicon rubber 100parts containing hydroxyl terminal group and a silicon oil 1-10 parts were described.  When a steel board coated with I to 250 μ thickness was immersed in sea water for 23 weeks and 2.5 years, resp., the one was not entirely corroded, while the other was corroded slightly.
Patent KR-800001272-B1 (KR)
Title: Method for producing the semiconductive device
Inventor: MCELROY D
IPC: H01L21/265
Filed: 1976-04-12
Granted: 1980-10-26
Abstract: In a method of manufg. the semiconductor device, random defects or inaccuracies in precise registrations of certain patterns are compensated by the introduction of selected impurities. The selected impurities bring about changes in the electrical characteristics of those portions of the semiconductor affected by the random defects or registration inaccuracies to prevent them from causing malfunctions in the complete device.
Patent KR-810000374-B1 (KR)
Title: Preparation for cation exchangr membrane
Inventor: SEKO MAOMI
IPC: C08J5/22
Filed: 1976-06-15
Granted: 1981-04-24
Abstract: F2 and FSO2CF2CF2OCF(CF3)CF2OCF: CF2 (I) were prepd., and part or all of the OCF2CF2SO2X [X = halogen, OH, alkyl or OZ (Z = a metal) ammonium, aryl or alkyl)  groups were converted to OCF2CO2M (M = H, ammonium or a metal) to prep. cation exchange membranes useful for the electrolysis of NaCl to give NaOH and Cl.  The copolyemr of F2C: CF2 and I was used to prep. a membrane and a carboxy-contg. membrane gave 95% current efficiency during use as an electrolysis diaphragm in the elctrolysis of NaCl
Patent KR-810001818-B1 (KR)
Title: Process for preparing 1-sulfonyl-5(6)-substituted benzimidazoles
Inventor: CHAMBERLIN J
IPC: C07D235/30
Filed: 1977-02-19
Granted: 1981-11-16
Abstract: Sulfonylbenzimidazoles [I; R = C1-4 alkyl, C5-7 cycloalkyl, -NR3R4(R3,R4 = C1-3 alkyl); R1 = H; R2 = R5C(OH)R6-; R5 = phenyl; R6 = C1-7 alkyl; R2 is positioned on 5 or 6  having a virus growth depressing activity were prepd. by the reaction of comps. II and C1-7 alkyl magnesium halide or C1-7 alkyl litium followed by hydrolysis to give I.  Thus, methylmagnesium bromide dissolved in ethylether and THF was added through 1hr to 1-dimethylaminosulfonyl-2-amino-6-benzoylbenzimidazole dissolved in THF and refluxed for 5hr to give amorphous 1-dimethylaminosulfonyl-2-amino-6-(α-hydroxy-α-methylbenzyl)benzimidazole.
Patent KR-830000217-B1 (KR)
Title: Roof top air conditioning unit
Inventor: LACKEY ROBERT S
IPC: F24F3/00
Filed: 1978-11-30
Granted: 1983-02-23
Abstract: The unit has a construction of the indoor air flow section(12) which adapts it to receive & return indoor air either through its bottom area in a vertical air flor mode, or through its end wall(34) in a horizontal air flow mode. The unit may be either roof top mounted or slab mounted. The indoor air flow section includes a draw-through refringerant coil(38) located in an upper quadrants(3,4) in the section for the vertical air flow mode & movable to separate a lower & upper quadrant for the horizontal air flow mode. A removable end wall panel is positioned to cover the bottom for the horizontal air flow mode.
Patent KR-830002444-B1 (KR)
Title: 엘리베이터의 속도제어장치
IPC: B66B1/24
Filed: 1980-04-02
Granted: 1983-10-26
Abstract: 내용없음.
Patent KR-840000207-B1 (KR)
Title: Apparatus for off loading a complete uncured trie
Inventor: RIGGS ROBERT STANLEY
IPC: B29D30/00
Filed: 1981-01-13
Granted: 1984-02-29
Abstract: This invention relates to tire building and particularly to the off-loading or removal of a completed but uncured tire from the tire machine on which it has been built.  Still more particularly, the invention relates to a method and apparatus for expeditiously moving a completed tire away from the tire building machine to avoid both interference with the building machine operator and possible damage to the tire.  According to one aspect of the invention, there is provided a method of off-loading a completed uncured tire from the tire building machine on which the tire has been assembled and which machine includes a drum (10) for shaping a tire carcass.
Patent KR-840000221-B1 (KR)
Title: Compositions of paper cover
Inventor: LEE MYONG-OK
IPC: D21H17/00
Filed: 1981-05-09
Granted: 1984-02-29
Abstract: Porous napkin coating compositions consist of (a) 10-15% nitrocellulose, (b) 15-25% of plasticizer, (c) 10-25% of organic solvent, (d) 1-5% of nonionic surfactant, (e) 1-2% of PVA, and (f) 40-50% of water. Produced compositions show good softness and high absorptivity in making napkins. Nitrocellulose is itself porous cellulose derivatives and has excellent affinity and coating capability with napkin cellulose. Castor oil is used as plasticizer. As organic solvent, ether-alcohol mixt., toluene, and acetone benzyl alcohol or methyl alcohol are used. Polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan palmitate, polyoxyethylene sorbitan trioleate are used us nonionic surfactant.
Patent KR-860000532-B1 (KR)
Title: Method for producing cube-on-edge silicon steel
Inventor: MILLER ROBERT FREDERICK
IPC: C21D8/12
Filed: 1983-03-08
Granted: 1986-05-08
Abstract: Process includes hot rolling, cold rolling with intermediate annealing, and final texture annealing. The improvement comprises making the steel serrated after texture annealing. Work of making serrations is pref. carried out in a direction perpendicular to the (001) crystal direction. The serrations are pref. 0.05 - 0.005 mm deep, 0.25 - 0.0025 mm wide, and are at intervals of 5 - 12.7 mm. The steel is used in the manufg. of transformer cores. The reduced core loss is enhanced if serration is combined with stressing.
Patent KR-870000366-B1 (KR)
Title: Method for produce brick
Inventor: SONG JONG-JUN
IPC: C04B33/36
Filed: 1984-01-27
Granted: 1987-03-06
Abstract: This invention relates to the method for rapidly hardened brick which has an excellent property of protection against water and the cold, and is suitable for field operation of forces. The process is as follows; A rapid hardening agent is made from two mixing solutions. One is a mixture of formalin, magnesium chlorid, sodium chloride, ammonium chloride and the other is a mixture of epoxy resins, calcium bichromate, calcium chloride. These two mixture are mixed in the ratio of three to two. The clay and the rapid hardening agent which is diluted with water in the ratio of one to two are mixed in the ratio of one to three and the rapid hardened brick is made by pressing.
Patent KR-880001159-B1 (KR)
Title: Ink dot printer
Inventor: KIMURA TSUDOMU
IPC: B41J27/00
Filed: 1984-10-22
Granted: 1988-07-02
Abstract: The needles are mounted in the printing head by an annular array of armatures and guides.  Selected needles are caused to reciprocate towards and away from the paper by pivoting of the armatures in response to selective energisation of an excitation coil.  A respective return spring is disposed coaxially about the rear end of each needle.  Each armature is held between a spring and a yoke, and its motion is limited by a stop.  Each needle extends through a respective elliptical hole formed in an ink tank.  The needles are connected to electrical earth whilst 1.8 to 12.0 kilovolts is applied to the electrode to provide the required electrostatic force field.
Patent KR-900004633-B1 (KR)
Title: Semiconductor memory device
Inventor: OKAJIMA YOSHINORI
IPC: G11C11/415
Filed: 1985-08-09
Granted: 1990-06-30
Abstract: The semiconductor memory device includes a high potential source, a low potential source, and a word line driver portion which makes the potential of selected word lines a selection level lower by a predetermined potential than the high potential source. Memory cells are connected to the word lines. A low potential source or another potential source is connected to the low potential source. A number of transistors are provided in the word line driver portion so as to connect a number of stages. When the memory has a sufficient power source margin, the word line driver is formed as a two-stage device so as to enable high speed operation.  When the memory has an unsufficient power source margin, the word line driver is formed as a one-stage device so as to ensure a sufficient power source margin.
Patent KR-920009943-B1 (KR)
Inventor: KITAGAWA YOSHIHIKO
IPC: B29C35/08
Filed: 1985-11-30
Granted: 1992-11-06
Abstract: 내용 없음.
Patent KR-940006322-B1 (KR)
Inventor: MARSHALL BARRY J
IPC: A61B5/00
Filed: 1986-09-05
Granted: 1994-07-16
Abstract: 내용 없음.
Patent KR-930002022-B1 (KR)
Inventor: TOKUMARU SENNOSUKE
IPC: A23C9/127
Filed: 1986-10-08
Granted: 1993-03-22
Abstract: 내용 없음.
Patent KR-910000309-B1 (KR)
Inventor: KAWASHIMA HATSUO
IPC: B60N2/235
Filed: 1986-04-12
Granted: 1991-01-24
Abstract: 내용 없음.
Patent KR-900007760-B1 (KR)
Inventor: MURPHY JOHN E
IPC: G05D23/01
Filed: 1986-03-12
Granted: 1990-10-19
Abstract: 내용 없음.
Patent KR-900007033-B1 (KR)
Title: Differenital amp citcuit
Inventor: SANO YUZI
IPC: H03F1/32
Filed: 1987-02-27
Granted: 1990-09-27
Abstract: The differential amplifier arrangement comprises two input terminals between which a shignal source is connected. A differential amplifier circuit has two transistors, each having collector, base and emitter electrodes, the emitters of the transistors being connected together. An output voltage is derived from one of the collectors of the trnsistors. A third transistor has a base electrode connected to the first input terminal and an emitter electrode connected to the base electrode of the second transistor. A fourth transistor has a base electrode connected to the base electrode of the first transistor. A current supply has two current input terminals connected to the collector electrodes of first and second transistors, respectively.
Patent KR-940007305-B1 (KR)
Inventor: MASUZAWA KUNIYOSHI
IPC: A61K31/495
Filed: 1987-03-03
Granted: 1994-08-12
Abstract: 내용 없음.
Patent KR-900002545-B1 (KR)
Title: Method for production of chlorine from hydrogen chloride
Inventor: ITTO HIROYUKI
IPC: B01J23/26
Filed: 1987-06-30
Granted: 1990-04-20
Abstract: Chlorine is produced by feeding hydrogen chloride and oxygen into a fluidized bed reactor contg. a chromium oxide catalyst with a mean size of 40-100 microns and a max. of 200 microns.  The reactor is formed of nickel with an iron content not exceeding 1%. The gases are fed into the reactor at 100-1800 l/hr.kg of catalyst.  The gases flows upwards at 0.1-1.0 m/sec with the conditions being controlled to give a reaction zone temp. of 350-450≰C.  The chlorine is produced efficiently with a high reaction velocity.
Patent KR-900004941-B1 (KR)
Title: A process of preparing downward type briquet
Inventor: KIM YOUNG-MIN
IPC: C10L10/00
Filed: 1987-07-14
Granted: 1990-07-12
Abstract: A downward butn-type briquet is manufactured by mixing barium nitrate, potassium chlorate, potassium peroxide, sodium acetate, potassium dichromate, fine stone coal with small quantity of water in the top of the briquet to form a thin igniting layer, mixing small quantity of potassium dichromate with the stone coal in the bottom of the briquet, and moulding the mixed stone coal in the mould.
Patent KR-950008174-B1 (KR)
Inventor: CASEY DONALD J
IPC: A61L31/14
Filed: 1987-08-26
Granted: 1995-07-26
Abstract: 내용 없음.
Patent KR-920002404-B1 (KR)
Inventor: OZEKI MAMORU
IPC: B22D17/14
Filed: 1987-09-12
Granted: 1992-03-23
Abstract: 내용 없음.
Patent KR-910007425-B1 (KR)
Title: Appliance and method for pushing a slab on the pier
Inventor: PARK JEUNG-OK
IPC: E01D1/00
Filed: 1988-03-09
Granted: 1991-09-26
Abstract: In the bridge construction  method,  the  prefabricated  slab smoothely gets forwarded because rolling devices are fixed on  the upper faces of the bridge  piers.  The  bridge  sliding  equipment comprises a movable hook (1) where a number of pulleys  are  axled with an axial rod and a number of grooves are formed for inserting the pulleys, fixed hooks (57,58) fastened to the bridge slab  (55) and the bridge pier (56) respectively, a wire  rope  (59)  zig-zag passing  through  the  pulleys,  pairs  of  rolling  devives  (12) positioned on both side ends of the bridge piers  (56,60)  and  in contact with the bridge slab,  and  pairs  a  hydraulic  cylinders equipped in the bridge piers.
Patent KR-930005429-B1 (KR)
Inventor: SHISHIDO SHIGENARI
IPC: G09F3/10
Filed: 1988-05-11
Granted: 1993-06-21
Abstract: 내용 없음.
Patent KR-960012769-B1 (KR)
Inventor: YUI YASUJI
IPC: G03B27/32
Filed: 1988-06-04
Granted: 1996-09-24
Abstract: 요약 없음.
Patent KR-920004266-B1 (KR)
Inventor: SUGITANI YUJI
IPC: B23K9/073
Filed: 1988-07-19
Granted: 1992-06-01
Abstract: 내용 없음.
Patent KR-960015294-B1 (KR)
Inventor: WEYMOUTH JR RUSSELL F
IPC: B29C45/70
Filed: 1988-10-13
Granted: 1996-11-07
Abstract: 내용없음.
Patent KR-900007306-B1 (KR)
Title: Roller massager
Inventor: FUJIMOTO SHINICHIROU
IPC: A61H15/00
Filed: 1988-10-28
Granted: 1990-10-08
Abstract: The device comprises a roll rotating unit including a driving unit installed within a rotating cylinder having a cylindrical body and having supporting caps to support a driving shaft installed at both sides of the opening faces of the cylindrical body. A drum cylinder is fixed on the outer face of the rotating cylinder. A rotating roll has cylindrical bars with ellipsoidal massaging members and cylindrical supports loosely installed on it. These are installed at equal distances between the sides of the body of the drum cylinder along the circumference. A reinforcement with a reinfocement bar is connected between boards which supports the roll rotating unit. The ellipsoidal massaging materials contact the effective part of the user to massage the whole effective part evenly.
Patent KR-910002077-B1 (KR)
Inventor: NIIHARA KOICHI
IPC: C04B35/10
Filed: 1988-11-03
Granted: 1991-04-03
Abstract: 내용 없음.
Patent KR-910004435-B1 (KR)
Title: Production method of micro-capsule for the recording paper
Inventor: LEE BOM-JONG
IPC: G03G5/00
Filed: 1988-11-26
Granted: 1991-06-27
Abstract: Microcapsules  for  pressure-sensitive  recording  paper  are produced by (1) condensation copolymerizing melamine  formaldehyde and ures formaldehyde by the mold ratio 1:3.5-1:4.5 at 55-65 deg.C and pH 9.5-10.5, (2) preparing 5% aqueous solution (pH 5.0-5.3) of styrene-maleic anhydride copolymer as an emulsifying solution, (3) making 3-10% hydrophobic dye solution by adding colorless dye into high boiling point oil at 80-150 deg.C, (4) mixing  and  agitating cooled dye solution, 0.01-1 wt.%  polyoxyethylene  sorbitan  ester and  0.01-1  wt.%  sorbitan  fatty  acid  ester,  (5)  mixing  the emulsifying solution and dye solution in the ratio  of  1:0.7-1.0, and (6) reacting the copolymer from (1) and solution from  (5)  at 70-80 deg.C for 3 hrs.
Patent KR-950006820-B1 (KR)
Inventor: SAWAGUCHI IKUO
IPC: B41F35/06
Filed: 1988-12-10
Granted: 1995-06-23
Abstract: 내용 없음.
Patent KR-910004699-B1 (KR)
Title: Producing process of synthetic fiber's filament yarn
Inventor: KIM WOO-JONG
IPC: D01F11/00
Filed: 1988-12-20
Granted: 1991-07-10
Abstract: The modified ester which  is  2  valenced  fatty  acid  ester alkylene oxide metal salt that is comprised  of  2  alenced  fatty acid ester alkylene oxide 10-20 mol and is shown as (I) [where  R1 is 2 alenced fatty acid with carbon no. 4-10, R2 is acyl or  alkyl with carbon no. 12-20, M is sodium or calcium . The modified ester is added to spinning oil composition, which  contains  lubricating compd. and polyethylene wax, 10-30 wt.% per whole oil composition. The mixed oil composition is made into water soluble  emulsion  of 5- 20%, and this emulsion is applied  0.5-2.0  wt.%  to  melt  spun undrawn synthetic fiber, thus resulting  in  non-sizing  synthetic filament.
Patent KR-900007831-B1 (KR)
Inventor: TREMBLAY PAUL A
IPC: A23J7/00
Filed: 1987-11-25
Granted: 1990-10-20
Abstract: 내용 없음.
Patent KR-920008419-B1 (KR)
Inventor: HIROSE YOSHIO
IPC: H01L27/118
Filed: 1989-04-22
Granted: 1992-09-28
Abstract: 내용 없음.
Patent KR-920003226-B1 (KR)
Inventor: YAMAGAWA AKGIRA
IPC: H01L23/15
Filed: 1989-05-15
Granted: 1992-04-24
Abstract: 내용 없음.
Patent KR-0175065-B1 (KR)
Inventor: WATANABE SHINGO
IPC: H01L21/00
Filed: 1989-08-03
Granted: 1999-06-01
Abstract: 내용 없음.
Patent KR-920004429-B1 (KR)
Inventor: MATSUMOTO TSURUYOSHI
IPC: G02B1/04
Filed: 1989-11-28
Granted: 1992-06-05
Abstract: 내용 없음.
Patent KR-920007024-B1 (KR)
Title: Corrosion resistant composition
Inventor: PARK HUI-JIN
IPC: C23F11/08
Filed: 1989-12-18
Granted: 1992-08-24
Abstract: The anticorrosive liquor composition comprises 20-40 wt. pts. of mixture (A) and 60-80 wt. pts. of mixture (B). The  mixture  is composed of 100 wt. pts. of coal tar and pitch, and 5 wt. pts.  of enamel. The mixture (B) is composed of  100  wt.  pts.  of  diatom earth, 10 wt. pts. of methyl alcohol, 5 wt. pts. of benzene, 5 wt. pts. of trichloroethylene, 5 wt. pts. of  borax,  5  wt.  pts.  of beeswax, 5 wt. pts. of pine resin, and 1 wt. pt. of  ceramic.  The composition is used for coating automobiles.
Patent KR-920010219-B1 (KR)
Title: Method and arrangement for signal converter
Inventor: GAILUS PAUL H
IPC: H04B14/06
Filed: 1989-01-17
Granted: 1992-11-21
Abstract: An improved apparatus and method for a sigma delta converter for bandpass signals is disclosed, suitable for use in mobile radio applications, between the front end and digital signal processing stages, that includes at least one bandpass filter, an n-level quantizer, an n-level digital-to-analog (D/A) converter, and a direct current (DC) feedback network. The sigma delta converter for bandpass signals may be configured in a second order or a fourth order embodiment and achieves analog-to-digital conversion of a signal having a non-zero frequency carrier or suppressed carrier with improved signal-to-noise ratio performance and with minimal quantization error. As a result, the sigma delta conversion occures earlier in a receiver chain and a dynamic range of about 95-98 dB is achieved.
Patent KR-930009320-B1 (KR)
Inventor: YAMAMOTO KAZUHITO
IPC: B29C49/00
Filed: 1990-02-16
Granted: 1993-09-27
Abstract: 내용 없음.
Patent KR-920005682-B1 (KR)
Title: Seeder
Inventor: PARK HONG-YOP
IPC: A01C7/08
Filed: 1990-03-21
Granted: 1992-07-13
Abstract: The seeding apparatus consists of a  device  for  sowing  and distributing seeds to fixed interval, a seed digger (60) connected with rotary operating lever, a power device formed with wheel (18) and starting lever (17) which transmitted by a gear and chain  for engine power. The device for distributing seeds are connected by a screw of seed descending gear (16) and  comprises  a  shaft  (31), seed supply pipe (33), an outer casing (32)  protected  the  shaft (3) and pipe (33). A gear tooth of the soil descending  gear  (15) has forty-five, and seed descending gear (16)  has  twelve  tooth. The seed device has four groove at the other side of each shaft.