baber/WOPTO huggingface dataset:
Patent SG-11201908327U-A (SG)
Title: Polishing compositions and methods of use thereof
Inventor: LEONOV ALEXEI P
IPC: C09G1/02
Filed: 2018-03-27
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 04 October 2018 (04.10.2018) W I PO I PCT IiiimmomiolollmonolomoninomoloilomovoimIE (10) International Publication Number WO 2018/183310 Al (51) International Patent Classification: C09G 1/02 (2006.01) H01L 21/306 (2006.01) (21) International Application Number: PCT/US2018/024543 (22) International Filing Date: 27 March 2018 (27.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/472,788 29 March 2017 (29.03.2017) US (71) Applicant: FUJIFILM PLANAR SOLUTIONS, LLC [US/US]; 6550 South Mountain Road, Mesa, Arizona 85212 (US). (72) Inventors: LEONOV, Alexei P.; 4118 E Jasper Dr., Gilbert, Arizona 85296 (US). MISHRA, Abhudaya; 1819 E. Cascade Dr., Gilbert, Arizona 85234 (US). (74) Agent: ZHANG, Tony et al.; Fish & Richardson P.C., P.O. Box 1022, Minneapolis, Minnesota 55440-1022 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: POLISHING COMPOSITIONS AND METHODS OF USE THEREOF Z2 NH 1-1 O co 00 O C (57) : The disclosure provides chemical mechanical polishing compositions and methods for polishing polysilicon films with high removal rates. The compositions include 1) an abrasive; 2): Formula (I) at least one compound of structure (I): (I), 3) at least one compound of structure (II): Formula (II); and 4) water; in which the composition does not include tetramethylammonium hydroxide or a salt thereof. The variables n, Ri-R 7 , X, Y, and Zi -Z3 in structures (I) and (II) are defined in the Specification. The synergistic effect of the compounds of structures (I) and (II) in these chemical mechanical polishing compositions leads to high polysilicon films material removal rate during polishing.
Patent SG-11201908616P-A (SG)
Title: Cleaning compositions for removing residues on semiconductor substrates
Inventor: MCALPIN JOSEPH GREGORY
IPC: C11D3/30
Filed: 2018-03-16
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT 011101 V III o Ho omoilimio VII IE (10) International Publication Number WO 2018/175222 Al (51) International Patent Classification: C11D 3/28 (2006.01) C11D 3/33 (2006.01) C11D 3/30 (2006.01) C11D 7/50 (2006.01) (21) International Application Number: PCT/US2018/022812 (22) International Filing Date: 16 March 2018 (16.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/475,947 24 March 2017 (24.03.2017) US (71) Applicant: FUJIFILM ELECTRONIC MATERIALS U.S.A., INC. [US/US]; 80 Circuit Drive, N. Kingstown, Rhode Island 02852 (US). (72) Inventors: MCALPIN, Joseph Gregory; 1915 E Rhea Road, Tempe, Arizona 85284 (US). DORY, Thomas; 832 W. Rawhide Ave., Gilbert, Arizona 85233 (US). (74) Agent: ZHANG, Tony et al.; Fish & Richardson P.C., P.O.Box 1022, Minneapolis, Minnesota 55440-1022 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) N GO (54) Title: CLEANING COMPOSITIONS FOR REMOVING RESIDUES ON SEMICONDUCTOR SUBSTRATES 1-1 0 (57) : This disclosure relates to a cleaning composition that contains 1) at least one redox agent; 2) at least one water soluble \" organic solvent; 3) at least one metal-containing additive; 4) at least one cyclic amine, and 5) water. O
Patent IS-1624-B (IS)
Inventor: MARCHI EGIDIO
IPC: A61K9/22
Filed: 1993-09-01
Abstract: Programmed release tablets, to be administered by oral route, containing from 500 to 1,200 mg of naproxen, made by mixtures of an immediate release granulate dry compacted containing from 5% to 28% of naproxen, of a controlled release granulate dry compacted containing from 72% to 95% of naproxen and of a disintegrating agent.   A portion of naproxen is released in a short time, so that the drug can quickly develop its therapeutic action reaching the necessary hematic levels, while the remaining portion is released in a longer interval of time, so as to allow the therapeutic coverage till the subsequent administration. The therapeutic coverage is effective for a period of 24 hours; thus the tablets object of the present invention are suitable for a once a day administration.
Patent AT-406340-B (AT)
IPC: G03G8/00
Filed: 1998-02-11
Granted: 2000-04-25
Abstract: The method involves printing onto a flat substrate (1) and joining the substrate to the object, printing onto a substrate already joined to the object or printing onto a pre-substrate and transferring the print to a substrate already joined or yet to be joined to the object. A digital printing technique is used to print at least the motif (3), and can also be used for the background.
Patent AT-409585-B (AT)
Title: Device for carrying out cryosurgical interventions, especially for treating tumors, has evaporated cryogenic medium carried away via return flow lines
Inventor: KORPAN NIKOLAI DR
IPC: F28F13/00
Filed: 1999-04-27
Granted: 2002-09-25
Abstract: The cryoinstrument has a housing (1) with a line for direct (2) and return (3) flow of a cryogenic medium, e.g. liquid nitrogen, with at least one closed end piece (4) forming a working surface (5) with an exterior side for cooling a tissue and a temperature sensor (7). An element is mounted in the housing with a porous structure (8) with its degree of porosity and pore size increasing from inside to outside so that the capillary forces of the porous structure are greater than the vapor pressure of any cryogenic medium evaporated on ridges (9). The evaporated cryogenic medium is carried away via lines for the return flow, if appropriate in channels (10) between the ridges, so that the liquid phase in the porous layer is unaffected.
Patent HU-201984-B (HU)
Inventor: STENZL FERENC
IPC: F04B19/12
Filed: 1987-01-30
Abstract: A találmány csigadugattyú szivattyúra vonatkozik, szivattyúházban elrendezett, kétbekezdésú csigaprofil menetű, elasztikus állórésszel és egybekezdésú csigaprofil menetű csigadugattyúval. A csigadugattyú (2) állandó forgástengely (f) körül forgathatóan van csapágyazva - célszerűen a  1. ábra A leírás terjedelme: 3 oldal, 3 ábra meghajtó motor (5) tengelycsonkján van rögzítve az állórész egyik végén nyitott, kettősfalú elasztikus hengerként (1) van kialakítva, amelynek két fala közötti tér a szivattyú nyomóoldala felé nyitott. (1. ábra) HU 201 984 B -1-
Patent HU-187863-B (HU)
Title: Process for preparing 2-/4-/2-thiazolyl-oxy/-phenyl/-propionic acid
Inventor: HAMADA YOSHINORI
IPC: C07D277/34
Filed: 1983-02-25
Abstract: Improved process for the production of 2-[4-(2-thiazolyloxy)phenyl]propionic acid which comprises methylating the isopropyl, sec-butyl, tert-butyl or benzhydryl ester of 2-[4-(2-thiazolyloxy)phenyl]acetic acid with methyl bormide in dimethylformamide at -5 to 5 DEG C in the presence of powdered potassium hydroxide and hydrolyzing the ester group with sodium hydroxide at 0 - 70 DEG C in an aqueous alcohol solution.
Patent HU-201920-B (HU)
Title: Process for producing 3-aminodihydro-(1)-benzopyran derivatives and pharmaceutical compositions comprising same
Inventor: HUTCHISON ALAN J
IPC: C07D311/58
Filed: 1988-02-26
Abstract: Compounds of the formula: <IMAGE> in which Z denotes oxygen or sulphur, R denotes hydrogen or lower alkyl, R1 denotes hydrogen, lower alkyl or aryl-lower alkyl, R2 denotes hydrogen, lower alkyl or aryl-lower alkyl or R1 and R2 together denote alkylene having 4-6 C atoms, R3 denotes hydrogen, hydroxyl, lower alkoxy, aryl-lower alkoxy, acyloxy or aryloxy in compounds having the meaning sulphur for Z, R3 denotes hydroxyl, lower alkoxy, aryl-lower alkoxy, acyloxy or aryloxy in compounds having the meaning oxygen for Z and R3 is bonded in the 5- or 8-position in compounds having the meaning oxygen for Z, R4 and R5 independently of one another denote hydrogen, lower alkyl or halogen, and pharmaceutically acceptable salts thereof and mono- or di-S-oxides of compounds of the formula I in which Z denotes sulphur.   The compounds can be used as modulators for the receptors of the central nervous system, for example as serotonin receptor antagonists in the treatment of disorders of the central nervous system.
Patent YU-48938-B (YU)
Inventor: RADIVOJE MILOJEVIC DIPL ING
Filed: 1996-04-03
Abstract: Motor sa protočnom komorom, sa klipnom mašinom sa primenom u svim oblastima gde se koriste četvorotaktni motori sa unutrašnjim sagorevanjem manjih snaga, naznačen time, što ima klipni kompresor (KM1) sa dva cilindra (KM1.3) osno postavljena u horizontalnom izvođenju sa vezom klipnjača na koleno vratila preko igličastih ležaja sa jednom glavom (KM1.5.1) klipnjače u obliku viljuške, a druge u standardnom izvođenju i glavom kompresora (KM1.1) u kojoj su pod uglom od 75° u odnosu na osu kolenastog vratila smešteni usisni samoregulišući ventil (1.2) i protočna komora (2) sa distribucionim ventilom (2.1) i prestrujnim ventilom (2.3), što je klipni kompresor (KM1) preko protočnih komora (2) povezan na klipnu mašinu (KM3) sa dva cilindra (KM3.3) duplo veće zapremine od cilindra (KM1.3) kompresora, što su cilindri (KM3.3) klipne mašine osno postavljeni u horizontalnom izvođenju sa vezom klipnjača na koleno vratila preko igličastih ležaja sa jednom glavom (KM3.5.1) klipnjače u obliku viljuške, a drugom u standardnom izvođenju, pri čemu je u glavi (KM3.1.) klipne mašine izliven levkasti kanal za vezu sa protočnom komorom (2) preko prirubničkog spoja za kućište izduvnog ventila (KM3.2), što ima dva izduvna ventila (KM3.2) standardne konstrukcije sa klackalicom i podizačem koji se otvaraju ili zatvaraju preko zajedničkog ekscentričnog brega ugrađenog direktno na vratilo prenosnog mehanizma (KM4), što poseduje prenosni mehanizam (KM4) koji se sastoji od vratila sa dva kolena postavljena paralelno u istoj ravni oslonjenog preko tri valjčasta ležaja na kućište motora, zamajca za prenos korisne snage i kaišnika za pokretanje pomoćnih uređaja, što ima uređaj (KM5) čija zupčasta pumpa za podmazivanje pokretnih delova motora dobija pogon direktno sa vratila prenosnog mehanizma (KM4), što ima uređaj za ubrizgavanje goriva (KM6) koji se sastoji od pumpe visokog pritiska sa dva naspramno postavljena cilindra u kojima se klipovi pokreću preko zajedničkog ekscentra postavljenog direktno na vratilo prenosnog mehanizma (KM4) i što ima centrifugalnu duvaljku (KM7.1) uređaja za predsabijanje vazduha (KM7) direktno spregnutu preko zajedničke pogonske osovine sa dobošastim ventilatorom (KM8.1) uređaja za vazdušno hlađenje motora (KM8) koji se preko kaišnog prenosa pogoni sa vratila prenosnog mehanizma (KM4). Prijava sadrži još 6 zavisnih zahteva.
Patent AT-386621-B (AT)
Title: Apparatus for the production of a yarn
IPC: D01H1/11
Filed: 1987-05-08
Granted: 1988-09-26
Abstract: The fibre feed device for the spinning gusset 3 between two codirectionally rotating spinning drums 1, 2 lying closely next to one another consists of a feeder roller 5 which precedes one spinning drum 1 and which has a suction-exposed circumferential region 7 leading into the spinning gusset 3 and, on the spinning-drum side, axially next to the suction-exposed circumferential region 7, a blowing zone 10 which is followed by a fibre guide device 12. In order to achieve a uniform and fault-free introduction of the blown-off fibres into the spinning gusset 3, the fibre guide device 12 is composed of a side wall 13 projecting into the spinning gusset 3 and of a cover wall 16 which adjoins the said side wall and upwardly closes off the fibre guide device 12, the side wall 13 and the cover wall 16 each having, on the blowing-zone side, an air inlet orifice 17, 19 for forming an injector air stream 18, 20 along the respective inner wall surface. <IMAGE>
Patent AT-409146-B (AT)
Title: Apparatus for resiliently supporting movable component parts of rail points
Inventor: ACHLEITNER HERBERT DIPL ING
IPC: E01B7/02
Filed: 1998-07-08
Granted: 2002-05-27
Abstract: The invention relates to an apparatus for resiliently supporting movable component parts 2 of rail points, having at least one web or foot, with a resiliently mounted sliding part 10 or at least one resiliently mounted roller 14, by which the movable component part 2 is lifted off the assigned slide chairs 3, the resilient mounting being formed by at least one leg of a U-shaped clip 5 and the U-shaped clip 5 being rigidly connected at the free end, remote from the sliding part 10, of a leg 8 to the rail foot 4 of an immovable component part 1 or the web of a movable component part 2.  Both legs 8, 9 of the U-shaped clip 5 are arranged in such a way that they can be moved resiliently in relation to the rail foot 4 or the web of a movable component part 2. <IMAGE>
Patent AT-405406-B (AT)
IPC: C09J101/02
Filed: 1997-10-23
Granted: 1999-08-25
Abstract: The invention relates to a method for joining objects which each have a surface consisting of a cellulosic material. A joining agent is applied to at least one of the surfaces consisting of cellulosic material and the surfaces consisting of cellulosic material are brought into contact with each other. The inventive method is characterised in that a solution of cellulose in an aqueous tertiary amine oxide, especially N-methylmorphine-N-oxide (NMMO), is used as the joining agent.
Patent AT-398487-B (AT)
Title: Electric arc furnace for producing steel
Inventor: BERGER HARALD DIPL ING DR
IPC: F27B1/02
Filed: 1991-12-16
Granted: 1994-12-27
Abstract: In an electric arc furnace for producing steel by melting down scrap 27, in particular scrap iron and/or spongy iron and/or pig iron as well as additives, in a furnace vessel 1, at least one graphite electrode 11 which can be shifted in its longitudinal direction projects into the furnace vessel, an arc 26 being struck between the graphite electrode 11 and the charging material 27. To achieve an especially high input of energy, the graphite electrode 11 projects into a bottom part 8 of the furnace vessel 1 from the side, and the bottom part 8, in the region of the graphite electrode 11, has a widened portion 8, 9 projecting radially outwards relative to the top part 10. <IMAGE>
Patent AT-388714-B (AT)
Title: Lockable holder for crash helmet storage on two-wheeled motor vehicles
IPC: B62J11/00
Filed: 1987-12-23
Granted: 1989-08-25
Abstract: A holder for crash helmet storage on two-wheeled motor vehicles and the like engages into the helmet 3 through the lower neck opening and is lockable by lock 8. The helmet is to be undisplaceably secured therein in a predetermined position and with the interior sealed off. For this purpose, the holder 2 engages into the hollow of the helmet 3 with arms 4, 4a or paws which are pivotable above a support surface 9 for the lower helmet edge, which engage through the lower opening into the helmet 3 emplaced on this support surface 9 and which are pivotable inside the helmet 3 into a splayed position which fixes the helmet and in which they positively hold the helmet 3. The arms 4, 4a are lockable in this splayed position. <IMAGE>
Patent AT-385170-B (AT)
Title: Method for the application of agricultural chemicals to seeds
IPC: A01C1/08
Filed: 1984-11-20
Granted: 1988-02-25
Abstract: In a method for the application of agricultural chemicals to seeds, the substance to be applied is fluidized in a fluidized bed, specifically, first, the seeds, then an enveloping mass, subsequently the fungicides, the micronutrients, then again an enveloping mass, finally the insecticides and a covering layer being applied by fluidization.
Patent CH-631317-B (CH)
Inventor: MORITANI NAKANOBU
IPC: G04G5/00
Filed: 1978-07-05
Abstract: The disclosed is an electronic timepiece which has storage circuits for respectively storing data regarding a variety of times such as an alarm time for different operating modes, stop watch, timer, etc., a data processing circuit commonly provided for all the storage circuits for executing various time processes, and a control circuit for controlling a mutual transfer of the data between the respective storage circuits and the data processing circuit to selectively process the various times. Accordingly, this timepiece can process a large number of times without increasing the number of the time processing circuits.
Patent DK-161474-B (DK)
Inventor: BATTLE BILLY J
IPC: F16K3/316
Filed: 1984-06-21
Abstract: A friction reducing guide is provided as an insert in the metal gate of a resilient seated gate valve. The gate is encapsulated almost entirely with rubber except forthe guide area. Friction is reduced and any corrosion resistant coating inside the valve body is protected, in the guide area, from excessive abrasion.
Patent FI-55490-B (FI)
Inventor: ROY THOMAS PATERSON
IPC: C07C215/32
Filed: 1972-07-03
Granted: 1979-04-30
Abstract: Process for the manufacture of N-(2-halogenoethyl)-N-(2-hydroxy-2-phenylethyl)amines, known intermediates in manufacture of the anthelmintic tetramisole. In one alternative, process comprises reacting N-(2-hydroxyethyl)-N-(2-hydroxy-2-phenylethyl)amine with a halogenating agent, e.g., thionyl chloride, to give N-(2-halogenoethyl)-N-(2-halogeno-2-phenylethyl)amine salt, and reacting latter compound with water to give said monohalogeno compound. In another alternative, the isomeric N-(2-hydroxyethyl)-N-(2-hydroxy-1-phenylethyl)amine is reacted with halogenating agent to give N-(2-halogenoethyl)-N-(2-halogeno-1-phenylethyl)amine derivative, and reaction of latter with water gives said monohalogeno derivative. In another alternative, a mixture of the two said dihydroxy compounds is used as starting material. Conversion of the two dihalogeno derivatives to the same monohalogeno derivative proceeds, apart from exceptional circumstance, via an aziridine derivative.
Patent FI-75001-B (FI)
Inventor: LAMORT JEAN-PIERRE
IPC: D21B1/34
Filed: 1984-02-21
Granted: 1987-12-31
Abstract: The invention relates to a method and apparatus for sorting out recycled paper pulp obtained from scrap material containing contaminants in the form of large pieces of foreign material such as plastics, adhesives, pieces of rope and the like. The invention avoids the need to disintegrate such large pieces of foreign material prior to their removal. The device of the invention comprises a drum (1) with an horizontal axis (2), an end wall (3) of the drum being fitted with a perforated plate (4) and an helical stirrer (5) having profiled blades rotating in a plane parallel to this plate at a short distance thereof, these blades having a transverse cross-section with a hydrodynamic profile adapted for generating a depression in front of the perforated plate, and a leading edge (6) forming a Bernouilli spiral with a constant angle of approximately 30 DEG , the drum (1) comprising a pulp inlet (10) with a valve (11) located opposite the perforated plate, an auxiliary enclosure (7) for recovering accepted pulp behind the perforated plate, connected to the suction side of a pump (8), a water inlet (12) with a valve (13), a vent (16) and a large bottom opening (14) with a valve (15) for discharging the refuse after the accepted pulp has been recovered. While the above-described device is designed for batch operation, a modified embodiment is provided in which twin units of the above design are associated for continuous operation (1a and 1b, FIG. 5) controlled by a 3-way valve (24) for alternatively feeding contaminated pulp to either sorting unit. In either case, the refuse is washed clear and water is drained out of the refuse before its discharge, so that it may be readily discarded without further processing, and the stirrer permanently prevents the perforated plate from becoming plugged.
Patent FI-89433-B (FI)
Inventor: BALABAN ALVIN REUBEN
IPC: H04N9/45
Filed: 1987-05-22
Granted: 1993-06-15
Abstract: A phase locked loop is provided, which may be used in digital systems having clock signal frequency instabilities. The PLL has an analog oscillator (342) the frequency of which is determined by an analog control signal. The oscillatory signal is digitised (344) and phase-compared (338) with a digital reference signal, the digital output of the phase comparator being converted (340) to an analog signal to provide the oscillator control signal. In an application of the invention to a digital television receiver having a line-locked clock, the phase locked loop (350) regenerates two quadrature phase related subcarrier signals (COS,SIN) that are used to synchronously demodulate the chrominance signal components (CB) of the composite video signals into two color information signals (I,Q). The analog voltage-controlled oscillator (342) of the phase locked loop (350) generates a signal that is independent of any frequency instability in the line-locked clock signal. The analog-to-digital converter (344) digitizes this signal to provide one of the subcarrier signals, from which is generated the quadrature subcarrier signal, for example from a read-only memory (348). The two color information signals (I,Q) are obtained by multiplying (332,334) the chrominance signals by the first and second subcarrier signals. The phase comparator (336) determines the phase of the vector sum of the two color information signals and compares this against a desired phase value to generate a phase difference signal. The phase difference signal is filtered (338) and applied to the digital-to-analog converter (340) whichprovides the frequency control signal for the analog oscillator (342). A tracking filter (346) may be inserted at the output port of the analog-to-digital converter (344) to allow its quantization resolution to be reduced without affecting the performance of the phase locked loop.