baber/WOPTO huggingface dataset:
Patent CA-2303139-A1 (CA)
Inventor: BILLON THIERRY
IPC: H04W16/02
Filed: 1998-09-11
Abstract: L'invention concerne un dispositif d'estimation prévisionnelle du rapport signal à interférences d'un terminal dans un réseau cellulaire de radiocommunications qui utilise en émission des fréquences primaires et des fréquences secondaires dont le taux de réutilisation est plus élevé que celui des fréquences primaires. Le dispositif connaît le niveau reçu par ce terminal d'une cellule de rattachement (A1) à laquelle il est connecté, il dispose également des niveau reçus (LB2, LC3, LD2, LE1, LG2, LF1) par ce terminal de cellules voisines (B2, C3, D2, E1, G2, F1), il sélectionne une cellule de référence (B2) parmi la cellule de rattachement et les cellules voisines, il produit un bruit potentiel en faisant la somme (N1) des niveaux reçus (LD2, LG2) des cellules (D2, G2) utilisant les mêmes fréquences secondaires que la cellule de référence (B2), il fournit cette estimation dans la cellule de référence (B2) en divisant le niveau reçu de cette cellule de référence par le bruit potentiel.
Patent CA-2303880-A1 (CA)
Inventor: KNEER ROLAND
IPC: B05B11/00
Filed: 1998-08-21
Abstract: Dans le col du récipient (1) est placé un insert (3) étanche présentant un fond (5) qui est fermé à l'état initial et qui, avant la mise en marche d'un système de pompe s'engageant par son extrémité dans l'insert (3), s'ouvre du fait qu'une pièce du corps de pompe (6) est vissée vers l'avant dans le sens axial du récipient (1). Entre le fond de l'insert et le système de pompe se trouve la chambre d'admission de l'agent active qui se mélange après ouverture du fond (5) avec un liquide se trouvant dans le récipient. On peut ainsi délivrer avec une pompe à vide, après un long temps de conservation, un médicament liquide comprenant un agent actif à stabilité de courte durée.
Patent CA-2305850-A1 (CA)
Inventor: MURRAY ROBERT JAMES
IPC: B27B1/00
Filed: 1994-08-29
Abstract: Previous methods of bucksawing logs slow the through-put of a sawmill in that the conveyor line is stopped while a given log is bucksawed to length. The present invention provides a method for bucksawing a log which improves the throughput speed, comprising the steps of a) advancing the log endwise along an infeed conveyor; b) raising the log above the level of said infeed conveyor while advancing the log; c) measuring the advance of the log while raised; d) stopping the log at the desired length; e) sawing the log to produce a forward log segment; and f) lowering the forward log segment onto an outfeed conveyor while advancing the remaining log segments. An apparatus for carrying out the method is also disclosed.
Patent CA-2306527-A1 (CA)
Inventor: MCNERNEY MICHELLE
IPC: G10L13/04
Filed: 2000-04-25
Abstract: A method and user interface which allow users to make decisions about how to pronounce words and parts of words based on audio cues and common words with well known pronunciations. Users input or select words for which they want to set or modify pronunciations. To set the pronunciation of a given letter or letter combination in the word, the user selects the letters and is presented with a list of common words whose pronunciations, or portions thereof, are substantially identical to possible pronunciations of the selected letters. The list of sample, common words is ordered based on frequency of correlation in common usage, the most common being designated as the default sample word, and the user is first presented with a subset of the words in the list which are most likely to be selected. In addition, the present invention allows for storage in the dictionary of several different pronunciations for the same word, to allow for contextual differences and individual preferences.
Patent CA-2308697-A1 (CA)
Title: Exclusion routes in border gateway protocol (bgp) routers
Inventor: JAMIESON DWIGHT D
IPC: H04L47/32
Filed: 2000-05-15
Abstract: Efficient control of packet forwarding by a router is enabled by storing in a forwarding table information explicitly identifying exclusion routes to which packets may not be forwarded. An exclusion route includes the same attributes as a conventional "inclusionary" route, and thus will be returned from a forwarding table for any matching packets using conventional best-match algorithms. The exclusion route is identified by a zero fill of its Next Hop attribute, which indicates that the exclusion route is inaccessible. Any packets matching an exclusion route are discarded. This permits access control to selected addresses in the network space.
Patent CA-2309203-A1 (CA)
Title: Process for the preparation of brominated polystyrene having improved color characteristics
Inventor: DEVER JAMES L
IPC: C08F8/20
Filed: 1997-11-18
Abstract: In a process for the preparation of brominated polystyrene, as an additive for polymer matrices to impart flame retardancy, including preparing a solution of a polystyrene reactant comprising from about 5 to about 20 percent by weight of a polystyrene reactant, in a halogenated hydrocarbon solvent; adding a Lewis acid bromination catalyst to form a solution; adding to the solution from about 1 to about 3.3 moles of a brominating agent, per mole of polystyrene repeating units, and reacting the polystyrene reactant with the brominating agent at a reaction temperature of from about -20 °C to about 50 °C;  wherein the improvement comprises controlling the color characteristics of the resultant brominated polystyrene by selecting a polystyrene reactant having a weight average molecular weight of from about 500 to about 1,500,000; selecting a catalytically effective amount of the catalyst on the basis of having a strength sufficient to effect at least monobromination of the polystyrene without inducing alkylation of the polystyrene by the halogenated hydrocarbon solvent; selecting a brominating agent from the group consisting of bromine chloride and bromine;  operating at the lowest possible temperature within the range, consistent with the brominating agent and the catalyst selected; and isolating the brominated polystyrene, wherein the color properties of the resultant brominated product are improved by selection and consideration of reaction time and temperature, catalyst, brominating agent and method of product isolation.
Patent CA-2313251-A1 (CA)
Inventor: SUKHATME VIKAS P
IPC: A61P17/02
Filed: 1998-12-08
Abstract: Described herein are novel mutants of endostatin, one of which, designated "EM  1", has anti-angiogenic activity similar or superior to that of wild type endostatin. The invention relates to the discovery of an isolated anti-angiogenic peptide, wherein the C-terminal end of the peptide comprises the amino acid sequence SYIVLCIE, which has anti-angiogenic properties. Designated "EM 1", this protein comprises a mutated endostatin protein, where the mutation comprises a deletion of nine consecutive amino acids from the C-terminus of the mutated endostatin protein (e.g., NSFMTSFSK). EM 1 terminates in the amino acid sequence SYIVLCIE. The invention also comprises isolated polynucleotides encoding EM 1, operably linked to expression sequence, and host cells transformed with such a construct. Antibodies to EM 1 are also disclosed. The invention also relates to processes for producing EM 1, fusion proteins containing EM 1, and compositions comprising EM 1 or fusion products thereof. The invention also discloses methods of producing polypeptides encoding EM 1.
Patent CA-2313407-A1 (CA)
Inventor: FAIRMAN IAN RALPH
IPC: G06F1/00
Filed: 1998-12-15
Abstract: In a data communications system, data is divided into a number of frames that are encrypted. Multiple copies of the frames are distributed to users. A seed value for the generation of keys is also distributed. A secure module at each user generates keys for use in decoding the data frames. Control messages are passed to the secure module to control the generation of the keys, and hence to control the access by a selected user to the data.
Patent CA-2314395-A1 (CA)
Title: Use of substituted amidino compounds in the treatment of chronic obstructive pulmonary disease
Inventor: MARSHALL PAUL JAMES
IPC: A61K31/606
Filed: 1998-12-10
Abstract: Use in medicaments for the treatment of chronic obstructive pulmonary disease of compounds of formula (I) wherein the C(=NH)-NHR3 group may be in tautomeric or isomeric form, or a pharmaceutically acceptable salt thereof, in which: R1 is amino which is mono- or disubstituted by a substitutent selected from an aliphatic hydrocarbon radical, an araliphatic hydrocarbon radical, an aromatic radical, and a cycloaliphatic hydrocarbon radical or is amino which is disubstituted by a divalent aliphatic hydrocarbon radical or a said radical interrupted by oxygen; R2 is hydrogen, halogen, trifluoromethyl, an aliphatic hydrocarbon radical, hydroxy or is hydroxy which is etherified by an aliphatic, araliphatic or aromatic alcohol or by an aliphatic alcohol which is substituted by carboxy, by esterified carboxy or by amidated carboxy or which is esterified by an aliphatic or araliphatic carboxylic acid; R3 is hydrogen or an acyl radical which is derived from an organic carbonic acid, an organic carboxylic acid, a sulfonic acid, or a carbamic acid; X1 and X3, independently or one another, are oxygen (-O-) or sulphur (-S-); and X2 is a divalent aliphatic hydrocarbon radical which may be interrupted by an aromatic radical; wherein the phenyl rings of formula (I) may be, independently or one another, further substituted by one or more substituents selected from halogen, trifluoromethyl, an aliphatic hydrocarbon radical, hydroxy, and hydroxy which is etherified by an aliphatic alcohol or which is esterified by an aliphatic or araliphatic carboxylic acid; wherein aryl in the above definitions may be, independently of one another, further substituted by one or more substitutents selected from halogen, trifluoromethyl, an aliphatic hydrocarbon radical, hydroxy, and hydroxy which is ethereified by an aliphatic alcohol or which is esterified by an aliphatic or araliphatic carboxylic acid; wherein a cycloaliphatic hydrocarbon radical may be substituted by an aliphatic radical.
Patent CA-2314478-A1 (CA)
Title: Controllable selective oxidation on vcsels
Inventor: STREUBEL KLAUS
IPC: H01S5/183
Filed: 2000-07-20
Abstract: A method for controlling the oxidation of a layer containing an oxidisable material extending in a transverse plane in a vertical cavity surface emitting laser (VCSEL), involves selectively implanting ions into transversely spaced regions of the layer to change the concentration of the oxidisable material in the transversely spaced regions. Subsequently the layer is oxidised and the degree of oxidation of the layer varies in a transverse direction between the implanted regions and non-implanted regions of the layer.
Patent CA-2315732-A1 (CA)
Title: Silicone oil emulsion stabilized with soap
Inventor: JAMES DAVID
IPC: A61K8/06
Filed: 1998-12-18
Abstract: The invention describes a silicone oil emulsion stabilised with soap. The soap is formed in situ from one or more fatty acids and a cation of a base during the emulsification process. The invention also provides a method of forming a soap stabilised oil-in-water emulsion including the steps of forming a first mixture comprising a silicone oil, a base, and initial water, combining the first mixture with a fatty acid component and emulsifying the resultant combination.
Patent CA-2316440-A1 (CA)
Inventor: ANDERSON CARL RICHARD
IPC: H04J3/00
Filed: 2000-08-18
Abstract: A system for performing a handoff of a wireless unit uses location information for the wireless unit to determine whether to handoff the wireless unit and/or to which base station to handoff the wireless unit. For example, a wireless unit can have a location system, such as a global positioning system (GPS), which determines the location of the wireless unit. The wireless unit can obtain location information for the wireless unit and provide the location information to the serving base station. From the location information, the serving base station can determine that the wireless unit is leaving the coverage area of the serving base station and may need to be handed off. The serving base station then can send at least a portion of the location information to the MSC, and the MSC can determine to which base station the wireless unit is handed off to based on the location information.  Alternatively, the serving base station can determine to which base station the wireless unit is to be handed off.
Patent CA-2318748-A1 (CA)
Title: Novel synthons for oligonucleotide synthesis
Inventor: YU DONG
IPC: C07H19/16
Filed: 1999-01-28
Abstract: The invention provides new reagents and processes for synthesizing oligonucleotides, including stereoselective oligonucleotide synthesis. In a first aspect, the invention provides novel monomer synthons for the synthesis of oligonucleotides. Monomer synthons according to this aspect of the invention are useful in the synthesis of oligonucleotides and can be used in place of the well known beta-cyanoethyl phosphoramidite monomer synthon in the phosphoramidite synthesis procedure. Certain monomer synthons according to this aspect of the invention are useful in this procedure for producing oligonucleotides having defined stereochemistry. In a second aspect, the invention provides processes for synthesizing monomer synthons according to the invention, including diastereomerically enriched or purified monomer synthons. In the processes according to this aspect of the invention, the chemical reactions are stereoretentive so that the products of each reaction retain the same stereoconfiguration as their precursor reagent. In a third aspect, the invention provides processes for synthesizing oligonucleotides using the well known phosphoramidite approach. In the processes according to this aspect of the invention, any of the monomer synthons according to the invention is used in place of the conventional beta-cyanoethyl phosphoramidite.
Patent CA-2319139-A1 (CA)
Inventor: TOMPKIN WAYNE ROBERT
IPC: B42D25/328
Filed: 1998-12-29
Abstract: A surface pattern is made up of surface elements (1 to 7) which are arranged in a mosaic-like fashion and which have microscopic relief structures. The surface elements (2 to 6) which are divided at least into first and second surface portions (8; 9) have in the first and second surface portions (8; 9) asymmetrical diffraction gratings (12; 13) with an optical diffraction effect, wherein in each divided surface element (2 to 6) adjacent first surface portions (8) are separated by at least one second surface portion (9). The grating vectors of the asymmetrical diffraction gratings (12) of the first surface portions (8) of all divided surface elements (2 to 6) have the same first value in respect of azimuth and the asymmetrical diffraction gratings (13) of the second surface portions (9) of all divided surface elements (2 to 6) have the same second value in respect of azimuth. The divided surface elements (2 to 6) are arranged in accordance with their surface proportion value An in the mosaic of all surface elements (1 to 7). The surface proportion value An of the N-th divided surface element is the relationship of the sum of all first surface portions (8) to the total area of all first and second surface portions (8; 9).
Patent CA-2320616-A1 (CA)
Title: Method for preparing ceramic compositions
Inventor: MOLNAR LINDA KATHERINE
IPC: B28B17/02
Filed: 2000-09-21
Abstract: A method for preparing ceramic particle slurries having controlled rheological properties to allow further processing to ceramic green bodies with improved compaction, green strength and green density is disclosed. Polymer additives containing 0.1 to 20% of acrylic acid and/or methacrylic acid monomer units are especially useful in controlling the viscosity of high solids aqueous slurries of ceramic particles and acting as binders to improve the strength of finished ceramic articles, such as sinks, spas, bathroom fixtures and sanitaryware.
Patent CA-2321579-A1 (CA)
Title: Field emission cathode fabricated from porous carbon foam material
Inventor: CHAKHOVSKOI ANDREI G
IPC: C25B11/02
Filed: 1999-02-27
Abstract: A field emission cathode (20) is provided comprising an emissive member (22) formed of a porous foam carbon material. The emissive member has an emissive surface (24) defining a multiplicity of emissive edges.
Patent CA-2322868-A1 (CA)
Title: Acylated betulin and dihydrobetulin derivatives, preparation thereof and use thereof
Inventor: WANG HUI-KANG
IPC: C07J53/00
Filed: 1999-03-02
Abstract: Betulin and dihydrobetulin acyl derivatives according to the present invention have been found to have potent anti-HIV activity. The compounds of the present invention have formulae (I) or pharmaceutically acceptable salts thereof;  wherein R1 is a C2-C20 substituted or unsubstituted carboxyacyl, R2 is a C2-C20 substituted or unsubstituted carboxyacyl; and R3 is hydrogen, halogen, amino, optionally substituted mono-- or di-alkylamino, or -OR4, where R4 is hydrogen, C1-4 alkanoyl, benzoyl, or C2-C20 substituted or unsubstituted carboxyacyl; wherein the dashed line represents an optional double bond between C20 and C29.
Patent CA-2328159-A1 (CA)
Title: Use of aminoalkylphosphonic acid derivatives for the therapeutic and preventative treatment of infections
Inventor: JOMAA HASSAN
IPC: A61P31/04
Filed: 1999-04-13
Abstract: The invention relates to the use of organophosphoric compounds of general formula (I) for the therapeutic and preventative treatment of infections caused by viruses, fungi and parasites in humans and animals.
Patent CA-2330663-A1 (CA)
Inventor: KAGENO KENJI
IPC: C08F4/04
Filed: 1999-03-03
Abstract: A process for producing an aqueous solution of a high-molecular monoallylamine polymer having a weight-average molecular weight of 20,000 to 180,000, which comprises polymerizing monoallylamine sulfate in an aqueous medium in the presence of a specific radical polymerization initiator and then neutralizing the reaction mixture with an alkali; and the aqueous solution of a highmolecular monoallylamine polymer. By this process, the aqueous polymer solution, which is useful in various applications, can be industrially advantageously produced highly efficiently.
Patent CA-2331885-A1 (CA)
Inventor: GUSTAFSSON JAN-AKE
IPC: A61P9/10
Filed: 1999-07-06
Abstract: L'invention concerne une méthode permettant d'induire un effet vasculoprotecteur chez un sujet. Cette méthode consiste à traiter le sujet à l'aide d'un agoniste ER.beta..
Patent CA-2332937-A1 (CA)
Title: Systeme de regulation d'un procede de polyamidation en continu
Inventor: LEMBCKE ROBERT M
IPC: C08G69/32
Filed: 1999-05-26
Abstract: L'invention concerne un système amélioré de polyamidation et de régulation de celle-ci, destiné à la production d'un polyamide à partir d'un monomère d'acide dicarboxylique en fusion et d'un monomère de diamine en fusion. Ce système de régulation de la polyamidation mesure le rapport molaire entre ces deux monomères en fusion (d'acide dicarboxylique et de diamine) et un mélange partiellement polymérisé. Dans ce système de régulation, on utilise un algorithme de régulation par l'amont, afin de déterminer la grandeur de la modification à apporter au rapport des réactifs initiaux, avant de procéder au mélange, de manière à produire un polyamide qui possède un rapport molaire équilibré sur le plan stoéchiométrique.
Patent CA-2337030-A1 (CA)
Title: Downhole multiplexer and related methods
Inventor: LEISMER DWAYNE D
IPC: E21B34/16
Filed: 1999-07-09
Abstract: In a broad aspect, the present invention is a downhole hydraulic multiplexer, which is comprised of one or more piloted shuttle valves (14), and method of using. The invention takes one or more input signals from a surface control panel or computer (86), said signals may be electric or hydraulic, and converts said signals into a plurality of pressurized hydraulic output channels. The invention is shown in a variety of preferred embodiments, including a tubing deployed version, a wireline retrievable version, and a version residing in the wall of a downhole completion tool. Also disclosed is the use of multiple shuttle valves used in parallel or in series to embody a downhole hydraulic fluid multiplexer, controllable by and reporting positions of said shuttle valves to said surface control panel or computer.
Patent CA-2338562-A1 (CA)
Inventor: WHEATLEY BRIAN K
IPC: C06B43/00
Filed: 1999-07-16
Abstract: A gas generating composition comprising ammonium nitrate and a non-toxic met al oxide which reduces the pressure exponent and enables the composition to sustain combustion at or near atmospheric pressure, thereby improving combustion efficiency. The composition is useful for various purposes, such as inflating a vehicle occupant restraint, i.e., an air bag for an automotive vehicle or aircraft, as well as aircraft escape chutes or the like.
Patent CA-2338862-A1 (CA)
Title: Alkenyl sulphonamide derivatives
Inventor: JONES WINTON DENNIS
IPC: C07C311/13
Filed: 1999-07-28
Abstract: The present invention provides certain alkenyl sulphonamide derivatives usef ul for potentiating glutamate receptor function in a mammal and therefore, usef ul for treating a wide variety of conditions, such as psychiatric and neurological disorders.
Patent CA-2339859-A1 (CA)
Title: Natural gas transport system and composition
Inventor: PERRY GLEN F
IPC: C10L3/10
Filed: 2001-02-05
Abstract: This invention relates to the storage under pressure in a container and subsequent transport of the filled pressurized container of particular natural gas or natural gas-like mixtures that contain methane or natural gas plus an additive, and which mixtures have been refrigerated to less than ambient temperature. (This invention also relates to a similar mixture which has been created by the removal of methane or a lean gas from a richer natural gas mixture.)
Patent CA-2341190-A1 (CA)
Title: Light pipe for a backlighting system
Inventor: JANNSON TOMASZ P
IPC: G02B6/42
Filed: 1999-08-20
Abstract: A non-scattering light pipe (10) includes a transition surface (28, 30) between a first side wall (14) and an input suface (12) and a second side wall (16) and the input surface (12). The transition surface is arranged to substantially obscure the corner interfaces (36, 38) between the first and second side walls and the input surface such that in the corner formation any imperfections therein are not imaged into the output. Most preferably, the transition surface is optimized to provide a substantially uniform light intensity distribution. A light pipe in accordance with the preferred embodiments of the present invention is further arranged to couple a linear light source (306), such as a cold cathode fluorescent light (CCFL). The light source is arranged such that dim areas (337', 338'), i.e., areas of the light source having non-uniform intensity, are not disposed adjacent the input surface.
Patent CA-2341373-A1 (CA)
Title: Powder coating device
Inventor: MICHAEL HANS PETER
IPC: B05B5/16
Filed: 1999-06-09
Abstract: Powder-coating equipment wherein one throttle (6, 16) each is mounted in a conveyance-air line (8) and in a supplemental-air line (18), said throttle's flow impedance being adjustable in motorized manner. Each throttle is fitted with its own adjustment motor (4, 14). The adjustment motors are driven by an electronic control unit (2).
Patent CA-2341562-A1 (CA)
Inventor: HUBER SIEGFRIED
IPC: H04L12/70
Filed: 1999-08-24
Abstract: By using the inventive method, an ATM-oriented cell stream (zs10) which transmits a continuous bit stream (bs) is transmitted over an ATM  communications network (KN), whereby at least two virtual connections (VC11-VC1N) are provided in the ATM communications network (KN). The ATM-oriented cell stream (zs10) is distributed on said virtual connections. Synchronizing cells (sz) are, at least at times, regularly fed into virtual connections (VC11-VC1N). As a result, a high bit rate continuous bit stream (bs) can be transmitted via virtual connections (VC11-VC1N).