baber/WOPTO huggingface dataset:
Patent CA-2220423-A1 (CA)
Title: Process for the preparation of substituted 5-hydroxy-oxazolidin-4-one
Inventor: ELLIS RUSSELL MARTIN
IPC: C07D263/18
Filed: 1996-05-13
Abstract: A process for the synthesis of a compound of general formula (II), wherein: R2 and R3 are each independently hydrogen or C1-C4 alkyl; A is an aromatic or heteroaromatic ring system optionally substituted with one or more substituents selected from: halogen or C1-C10 hydrocarbyl, -O(C1-C10 hydrocarbyl), -S(C1-C10 hydrocarbyl), -SO(C1-C10 hydrocarbyl) or -SO2(C1-C10 hydrocarbyl), cyano, nitro, SCN, SiRc3 (where each Rc is independently C1-C4 alkyl or phenyl), COR7, CR7NOR8, NHOH, ONR7R8, SF5, COOR7, SO2NR7R8, OR9 or NR10R11; and in which any ring nitrogen atom may be quaternised or oxidised;  alternatively, any two substituents of the group A may combine to form a fused 5- or 6-membered saturated or partially saturated carbocyclic or heterocyclic ring in which any carbon or quaternised nitrogen atom may be substituted with any of the groups mentioned above for A or in which a ring carbon atom may be oxidised; R7 and R8 are each independently hydrogen or C1-C10 hydrocarbyl; R9 is hydrogen, C1-C10 hydrocarbyl, SO2(C1-C10 hydrocarbyl), CHO, CO(C1-C10 hydrocarbyl), COO(C1-C10 hydrocarbyl) or CONR7R8; R10 and R11 are each independently hydrogen, C1-C10 hydrocarbyl, O(C1-C10 hydrocarbyl), SO2(C1-C10 hydrocarbyl), CHO, CO(C1-C10 hydrocarbyl), COO(C1-C10 hydrocarbyl) or CONR7R8;  any of the hydrocarbyl groups within the group A may optionally be substituted with halogen (i.e. chlorine, bromine, fluorine or iodine), hydroxy, SO2NRaRb (where Ra and Rb are independently H or C1-C6 alkyl), cyano, nitro, amino, mono- and dialkylamino in which the alkyl groups have from 1 to 6 or more carbon atoms, acylamino, C1-C6 alkoxy, C1-C6 haloalkoxy, C1-C6 alkylthio, C1-C6 alkylsulphinyl, C1-C6 alkylsulphonyl, carboxy, carboxyamide, in which the groups attached to the N atom may be hydrogen or lower hydrocarbyl optionally substituted with halogen; alkoxy carbonyl wherein the alkoxy group may have from 1 to 6 or more carbon atoms, or aryl such as phenyl; the process comprising cyclising a compound of general formula (VII); wherein A, R2 and R3 are as defined for general formula (II), R20 is hydrogen, benzyl or benzyl substituted with up to five substituents selected from halo, C1-C6 alkyl, O(C1-C6 alkyl) or nitro and R21 is C1-C8 alkyl, benzyl or benzyl substituted with up to five of the substituents mentioned above for R20.
Patent CA-2221137-A1 (CA)
Inventor: ANDERSON JOHN BAILEY
IPC: H03M13/41
Filed: 1997-04-14
Abstract: A circular MAP decoder for error-correcting trellis codes that employ tail biting produces soft-decision outputs provides an estimate of the probabilities of the states in the first stage of the trellis, which probabilities replace the a priori knowledge of the starting state in a conventional MAP decoder. The circular MAP decoder provides the initial state probability distribution in either of two ways. The first involves a solution to an eigenvalue problem for which the resulting eigenvector is the desired initial state probability distribution; with knowledge of the starting state, the circular MAP decoder performs the rest of the decoding according to the MAP decoding algorithm. The second is based on arecursion for which the iterations converge to a starting state distribution. After sufficient iterations, a state on the circular sequence of states is known with high probability, and the circular MAP decoder performs the rest of the decoding according to the MAP decoding algorithm.
Patent CA-2222246-A1 (CA)
Inventor: SUGANO YUKIO
IPC: B60R16/02
Filed: 1996-05-23
Abstract: Le système décrit permet d'éliminer les contradictions et les erreurs de temps entre régisseurs et de repérer les anomalies de façon exacte au moment voulu. Le système comporte un régisseur principal (1) chargé de transmettre un intervalle de temps servant de durée de référence, ainsi qu'une pluralité de régisseurs (11a, 11b, 11c, ..., 11n) permettant de déterminer le temps correspondant au diagnostic d'anomalie sur la base du temps de référence reçu lorsque des données indiquant une anomalie provenant des capteurs, etc. sont détectées.
Patent CA-2223253-A1 (CA)
Inventor: MINEVSKI LJILJANA V
IPC: C23F11/06
Filed: 1996-06-28
Abstract: A composition for inhibiting metal corrosion in acid gas removal amine units caused by CO2 and O2 gases. The composition comprises from 5 to 10 weight percent hydroxybenzoic acid, from 20 to 30 weight percent of a reaction product of maleated tall oil fatty acid polyhydroxy polyalkane and ammonium or potassium hydroxide; from 5 to 15 weight percent tallow diamine quaternary dichloride or alkanediol or mixtures thereof; from 15 to 30 weight percent alkanol or alkanolamine; up to 50 weight percent water and up to 10 weight percent antifoaming agent. The composition, when added to an aqueous alkanolamine solution, effectively inhibits corrosion of metal in contact with the aqueous alkanolamine solution.
Patent CA-2223946-A1 (CA)
Inventor: OTRUBA SVATOBOJ
IPC: B65C9/40
Filed: 1996-06-07
Abstract: A computer controlled labeling machine (10) is used to apply labels to an article (15) such as a beverage container. The apparatus and methods provide particular advantages for applying stretch labels (203) and/or labels (52) with tactilely sensible indicia (56) such as braille markings, to articles (15). The computer control system (20) provides structure (18 & 31) for controlling the speed and orientation of the labeling apparatus (10), including the vacuum drum (35) the relative speeds of the label unwind roll (92) and label pick-up vacuum drum (35) to thereby control the amount of label stretch, and for timing when the liquid application station (122) applies the liquid to form the tactilely distinguishable markings (56). It also controls timing of the label cutter (521), rotation of the container turret (13) and associated apparatus to provide precise control of the labeling operation.
Patent CA-2227243-A1 (CA)
Title: Methode de compression de donnees
Inventor: KOPF DAVID A
IPC: H03M7/48
Filed: 1996-08-09
Abstract: Méthode de compression de données faisant appel à une série de règles choisies pour une meilleure compression de données sélectionnées. Des règles permettent de convertir chaque donnée en une valeur binaire, puis de coder cette valeur binaire en une zone binaire de largeur variable (étape 1). Des règles permettent d'accroître ou de réduire automatiquement la largeur de la zone binaire codant la valeur de donnée suivante, sur la base de la largeur de zone courante et de la valeur de donnée codée (étapes 4 et 5). Un code de changement de code sert à accroître la largeur de zone pour la valeur codée suivante (étape 2). Une règle de codage RLL efficace de valeurs ou de codes répétitifs peut également être incluse.
Patent CA-2227452-A1 (CA)
Inventor: PROFIT GRANT
IPC: B60P7/08
Filed: 1998-01-20
Abstract: A truck strap fastener is adapted to enable a strap to be attached to either a downwardly directed hook or to an I-beam. Flatbed trailers typically provide either an I-beam or a downwardly directed hook as the point of attachment for load securing tie-down straps. A fastener is disclosed that is adapted to attach to either point of attachment, and also to the tie-down strap. The fastener provides a body carrying left and right prongs which jointly fasten in place about an I-beam. Alternatively, a hook opening in the body allows a hook to pass between the left and right prongs and through the hook opening in the body.
Patent CA-2229986-A1 (CA)
Inventor: WERLE BERND
IPC: C12M1/36
Filed: 1996-06-19
Abstract: A process and device are disclosed to determine the activity of enzymes in liquids in a largely automatic manner. The device for carrying out this process has a column (1) with a chromatographic carrier for treating a measurement sample. The carrier is mixed with a substance capable of binding to an enzyme inhibitor present in the measurement sample and that corresponds to at least one enzyme. A measurement sample supply (2) is associated to one end of the column (1). A valve/pump arrangement (7, 11, 14, 15) for filling at least one test tube (5) with a carrier and at least part of the measurement sample is connected downstream of the column (1), in the flow direction of the measurement sample. The carrier is dissociated into cleavage products by the action of the enzyme. The rise in concentration per unit of time of at least one of the cleavage products of the carrier is sensed during an incubation time. As an alternative or supplementary step, the enzyme that corresponds to at least one enzyme inhibitor is extracted by chromatography from a measurement sample to detect enzyme inhibitors in liquids and the thus treated measurement sample is tested for inhibitor concentration and/or activity.
Patent CA-2235585-A1 (CA)
Title: Enhanced detection of multiple data transmissions
Inventor: VAN EEDEN HENDRIK LODEWYK
IPC: H04B1/59
Filed: 1996-11-08
Abstract: The present invention provides method and apparatus which enhance the probability of identification of a number of transmitters (1), typically transponders, which are all transmitting data to a receiver. The invention is applicable to a number of systems including passive radio-frequency transponders systems, systems in which a number of self-powered transmitters must be identified by a receiver, or systems in which a number of transmitters broadcast using a randomly delayed "back-end and retry" algorithm. Each transmitter (1) is adapted to transmit at intervals and comprises means for generating transmissions, means for calculating the duration of the intervals between successive transmissions and means (20) for enabling the transmitter at random or pseudo-random intervals related to an operating frequency of local timing means (21). In passive RFID systems, the frequency of the local timing means is indeterminate, being unspecified until the transmitter is in operation.
Patent CA-2236241-A1 (CA)
Title: Amplifier with reduced input capacitance
Inventor: MADAFFARI PETER L
IPC: H03F1/14
Filed: 1998-04-27
Abstract: A JFET preamplifier for use with a high impedance transducer, having an inherently capacitive input bias impedance. The capacitance of the input bias impedance is effectively neutralized by capacitively coupling the JFET gate bias circuit to the source electrode of the JFET. The JFET preamplifier is configured as a source follower which reduces any capacitance between the JFET gate and source electrode by the open loop gain of the amplifier. By capacitively coupling the JFET gate bias circuit capacitance to the JFET source electrode, the overall input capacitance of the preamplifier stage is reduced.
Patent CA-2237259-A1 (CA)
Title: Apparatus and method for providing wireless communication to a sectorized coverage area
Inventor: HADDOCK GRAHAM
IPC: H01Q3/40
Filed: 1997-07-01
Abstract: A transmitter (300) is utilized to provide wireless communication in a sectorized coverage area. The transmitter (300) incorporates a hybrid matrix (303) and an inverse hybrid matrix (306) to combine input control signals (315) and traffic signals (316). The hybrid matrix (303) transforms the control signals (315) and traffic signals (316) into output signals which each contain a portion of the control signals (315) and traffic signals (316). The outputs from the hybrid matrix (303) are amplified by amplifiers (319), and the outputs from the amplifiers (319) are then inverse transformed by the inverse hybrid matrix (306). The inverse transform matrix (306) recombines the portions of the control signals (315) and traffic signals (316) originally input to the hybrid matrix (303), and the resulting signals are transmitted to mobile stations (203-205 and 208) in sectorized coverage areas (S1A and S1B) using sector antennas (320).
Patent CA-2237506-A1 (CA)
Inventor: OTA YUSUKE
IPC: H04B10/43
Filed: 1998-05-13
Abstract: The length of the tail which results in an optical output from a laser diode after the laser diode is no longer being driven is reduced or eliminated by a laser diode driver with a tail eliminator. More specifically, the laser diode driver includes an energy drainage path that is activated when packet communication is over. In one embodiment of invention, the terminals of the laser diode are short-circuited to provide the energy drainage path. In another embodiment of the invention, the laser diode is reverse biased, so that charges stored in the laser diode are combined with charges which are provided thereto. Advantageously, the tail emission is substantially eliminated.
Patent CA-2238936-A1 (CA)
Inventor: SAWICK DAVID P
IPC: C07C43/29
Filed: 1996-08-27
Abstract: The present invention provides a process for the preparation of a compound of formula (I):   (See formula I) wherein R is a straight or branched alkyl group of from one to twelve carbon atoms; M represents hydrogen or a pharmaceutically acceptable cation; and A  is selected from optionally substituted carbocyclic phenyl.
Patent CA-2240085-A1 (CA)
Title: Sequential fill valve gated injection molding system
Inventor: SMITH MICHAEL
IPC: B29C45/00
Filed: 1998-06-09
Abstract: A system for injection molding of large components is disclosed that provides for the production of higher quality large molded components with a reduction in both molding cycle time and molding costs. Plasticized material communicates with a mold, having at least one single cavity, through a manifold that has at least two spaced valve gates that are independently opened and closed as directed by a controller to selectively communicate plasticized material to the mold cavity at separate locations in the mold cavity. The controller directs the valve gates to sequentially open and close during the filling phase so as to achieve the desired melt front advancement within the mold cavity. Once the mold cavity has been filled as desired, the valve gates are closed to effectively seal the manifold from the mold cavity. The plasticized material within the manifold is held in compression while the mold cavity is open, so as to prevent appreciable expansion of the material that has been found to result in molded part imperfections. Additional material may be plasticized and held in compression while the mold cavity is open, resulting in a further reduction in overall cycle time.
Patent CA-2246617-A1 (CA)
Inventor: WATANABE KELLY A
IPC: E06B9/262
Filed: 1997-12-03
Abstract: L'invention porte sur un système de persiennes haut en bas, bas en haut se manoeuvrant par une seule commande. La variante préférée de l'invention est compatible, mais pas exclusivement, avec des persiennes à embrayage dont les tirettes sont enroulées sur un arbre placé dans le rail de tête. Ledit système fonctionne avec toute persienne de type haut en bas, bas en haut, et tout type de dispositif de levage. Le système comporte un rail (1) de tête et une tirette (3, 35, 37) qui s'enroule sur un arbre (11) placé dans le rail (1) de tête. La tirette (3, 35, 37) qui part de l'arbre (11) passe par une série de poulies (15, 17, 19, 21, 43, 45, 47). La rotation de l'arbre (11) agissant sur la tirette (3, 35, 37) déplace les rails (5, 9, 27, 31, 47), ce qui manoeuvre les toiles (7, 25, 29).
Patent CA-2246802-A1 (CA)
Title: A human cytomegalovirus combined antigen and its use
Inventor: RAMON ALBERT
IPC: A61K39/00
Filed: 1997-02-20
Abstract: A combined antigen having at least three portions of human cytomegalovirus (HCMV) proteins and characterized by an enhanced ability to bind HCMV-specific antibodies, for use in assays for the detection of HCMV-specific antibodies and as a vaccine to confer protective immunity against HCMV-mediated diseases.
Patent CA-2253018-A1 (CA)
Inventor: MALTHOUSE MARTIN
IPC: B65C9/18
Filed: 1998-11-05
Abstract: A labeling machine includes a knife station for severing labels from a roll.  The knife station can be swung on a pivot to allow access to the stationary and rotating knife. Adjustment is made at the stationery knife by varying the separation of a pair of bifurcated arms. Labels are held on the labeling head by a vacuum system that varies the vacuum as the head rotates past the glue station. The glue station has a glue roller supported against lateral forces at its lower edge on a bearing. Its upper edge is supported on an axially floating bearing.
Patent CA-2255459-A1 (CA)
Title: Stabilization of polycarbonate/abs blends with mixtures of hindered amines and uv absorbers
Inventor: ANDREWS STEPHEN MARK
IPC: C08K5/3492
Filed: 1998-12-11
Abstract: Blends of polycarbonate with ABS resins are effectively stablized by a combination of selected non-basic hindered amines containing the 3,3,5,5-tetramethyl-2-oxo-1-piperazinyl moiety and UV absorbers such as benzotriazoles, s-triazines and benzophenones, particularly the benzotriazoles and s-triazines
Patent CA-2257614-A1 (CA)
Title: Peptides se liant a l'heparine
Inventor: SOBEL MICHAEL
IPC: A61P7/02
Filed: 1997-06-03
Abstract: La présente invention concerne des peptides antagonistes de l'héparine qui se lient à l'héparine et neutralisent de façon spécifique les propriétés conventionnelles d'anticoagulant sans entraîner d'effets secondaires hémodynamiques nocifs ni d'exacerbation de réponse vasculaire proliférante sur la lésion. De façon plus spécifique, les composés se liant à l'héparine de la présente invention sont des médicaments à action courte durée s'utilisant dans des situations provoquées ou dans des situations d'urgence, et qui sont capables de neutraliser en toute sécurité et de façon spécifique les propriétés conventionnelles d'anticoagulant sans entraîner d'effets secondaires hémodynamiques nocifs ni d'exacerbation de réponse vasculaire proliférante sur la lésion.
Patent CA-2260046-A1 (CA)
Inventor: KRINKER RANDALL
IPC: C10N40/00
Filed: 1997-07-10
Abstract: Lubrifiant contenant du naphtalène alkyle-substitué et un ester.
Patent CA-2260308-A1 (CA)
Title: High performance speculative misaligned load operations
Inventor: WILLIAMSON BARRY DUANE
IPC: G06F12/08
Filed: 1999-01-25
Abstract: One aspect of the invention relates to a method for processing load instructions in a superscalar processor having a data cache and a register file. In one embodiment, the method includes the steps of dispatching a misaligned load instruction to access a block of data that is misaligned in the cache; while continuing to dispatch aligned instructions: generating a first access and a final access to the cache in response to the misaligned load instruction; storing data retrieved from the first access until data from the final access is available; reassembling the data from the first and final access into the order required by the load instruction; and storing the re-assembled data to the register file.
Patent CA-2262016-A1 (CA)
Title: Production of amino acids and enzymes used therefor
Inventor: PAGE MICHAEL IVAN
IPC: C12R1/01
Filed: 1997-07-25
Abstract: A process for producing .alpha.-amino acid from starting material comprising .alpha.-amino amide enantiomers (A) and (B) is such that enantiomer (A) is converted preferentially over enantiomer (B) so that a time independent excess of at least 90 %, preferably at least 98 % is given. The reaction is catalysed by an amidase which may in particular be produced by specific Rhodococcus species.
Patent CA-2263567-A1 (CA)
Title: Method of producing magnesium chloride granules
Inventor: LANGSETH BIRGER
IPC: C01F5/34
Filed: 1997-10-10
Abstract: Method of producing magnesium chloride granules with a particle size in the range from 0.4 to 3.0 mm suitable for fluidization, air drying and chlorinating to anhydrous state, comprising the steps of preparing a feed solution of MgCl2 having a 30 - 55 % by weight of MgCl2, atomisation of the feed solution into the bed of already dried particles by pressure or compressed air, maintaining the particles in a fluidizing state and a bed temperature between 100 - 170 ~C, and discharging the particles continuously.
Patent CA-2264168-A1 (CA)
Inventor: GALLEGO JOSE MANUEL
IPC: C03C/
Filed: 1997-09-10
Abstract: A high performance solar control glass comprises a glass substrate with a coating comprising a heat absorbing layer and a low emissivity layer of a metal oxide. Preferred heat absorbing layers absorb preferentially at wavelengths above 700 nm, and may be, for example, of non-stoichiometric or doped tungsten oxide, or of cobalt oxide, chromium oxide, iron oxide or vanadiam oxide. Preferred low emissivity layers are of semi-conductor metal oxide, for example doped tin oxide or doped indium oxide. Because of the nature of the layers, the coatings may be of neutral colour and be suitable for deposition on-line on the glass ribbon, during the glass production process, by pyrolytic methods for example chemical vapour deposition.
Patent CA-2264507-A1 (CA)
Inventor: GRANGER EDWARD M
IPC: H04N1/60
Filed: 1997-08-27
Abstract: An efficient technique for calibrating a scanner relative to a particular colorant set having N primary colorants. Once the scanner is calibrated, the scanner's device-dependent tristimulus values for an arbitrary color are transformed to a device-independent representation of the arbitrary color in a computationally efficient manner. The technique exploits the fact that the color space defined by the primary colorants can be advantageously partitioned, with each partition being represented by a transformation matrix that accurately characterizes the transformation for that partition of the space. The partitioning is characterized by a set of M key colors (in a specific embodiment, M=2N), each of which defines a boundary between adjacent partitions.
Patent CA-2264545-A1 (CA)
Inventor: BANDMAN OLGA
IPC: A61K48/00
Filed: 1997-04-30
Abstract: La présente invention porte sur une nouvelle sous-unité gamma de la phosphorylase kinase humaine (HPHKG) et sur le polynucléotide identifiant et codant HPHKG. L'invention porte également sur des vecteurs d'expression et des cellules hôtes comprenant la séquence d'acide nucléique codant HPHKG, ainsi que sur des compositions pharmaceutiques contenant HPHKG purifiée ou des molécules antisens contre HPHKG, ces compositions étant destinées au traitement de pathologies associées à l'expression de HPHKG. L'invention porte aussi sur des compositions diagnostiques contenant le polynucléotide, ses fragments ou son complément, qui s'hybride avec la séquence génomique ou le produit de transcription des polynucléotides codant HPHKG ou des anticorps anti-HPHKG qui se lient spécifiquement à HPHKG, et sur l'utilisation de ces compositions dans le diagnostic de pathologies.
Patent CA-2265760-A1 (CA)
Inventor: SHOER ELI
IPC: G03B17/02
Filed: 1997-08-20
Abstract: A method and an apparatus for pre-loading a single use camera with film (24). The camera is pre-loaded in non-darkroom with the back cover assembled to the camera without exposing any substantial portion of the film (24). The camera has a film advance mechanism (22) that employs a manual advance wheel (40) which is rotated in opposing directions to pre-load film from a film cassette (26) in the camera to a film spool compartment and to wind film back into the film cassette (26) from the film spool compartment (16) as exposures are taken. The film advance mechanism (22) also opens and closes the film cassette's light lock door (28) and employs a film sensor to disable the film advance mechanism (22) from operating the light lock door (28) when film is present in a film path (68a) of the camera. The battery (90) is inserted inside the film spool compartment (16) to minimize the camera size.