baber/WOPTO huggingface dataset:
Patent CA-2310588-A1 (CA)
Title: Transformation methods for optimizing elliptic curve cryptographic computations
Inventor: KOC CETIN KAYA
IPC: G09C1/00
Filed: 1998-12-04
Abstract: The present invention provides a transformation method for obtaining optimized hardware and software implementations of elliptic curve cryptographic systems, including elliptic curve encryption, decryption, and signature functions. The method is applicable to any elliptic curve group G defined over any field F.  More specifically, the present invention is characterized by speeding up the elliptic curve point multiplication operation, which consists of the calculation Q = eP, where P is a member of G and e is an integer. This is achieved by transforming P = (x, y) to a point P' = (x', y') in order to compute Q' = (u, v = eP'). The point P' is not necessarily on the elliptic curve, but by performing calculation on P' and transforming the resulting Q' back into G, it may be possible to calculate Q more efficiently than utilizing a direct method. The present invention also includes a method for optimizing the calculation of cryptographic operations involving arbitrary expressions in finite field arithmetic through a transformation method that permits the use of any field F in an efficient manner. The invention includes a method for optimizing arbitrary finite calculation in any finite field. The present invention teaches a set of transformations of cryptographic calculations that allows the use of other known techniques that have only been applicable to certain limited special cases prior to this invention.
Patent CA-2317322-A1 (CA)
Inventor: TANIGUCHI SHOHEI
IPC: G10L19/035
Filed: 2000-09-05
Abstract: An input digital audio signal is divided into sub-band signals in respective sub-bands. Scale factors of the respective sub-bands are determined on the basis of the sub-band signals for every frame.       Calculation is made as to differences between the determined scale factors for a first frame and the determined scale factors for a second frame preceding the first frame. Absolute values of the calculated scale-factor differences are calculated, and data representative of the calculated absolute values are generated. The data representative of the calculated absolute values are encoded into data of a Huffman code. Sign bits are generated which represent signs of the calculated scale-factor differences. The subband signals are quantized in response to the determined scale factors for every frame to generate quantized samples of the subband signals. The Huffman-code data, the generated sign bits, and the quantized samples of the sub-band signals are combined into a bit stream.
Patent CA-2319024-A1 (CA)
Title: Production of lubricating oils by a combination catalyst system
Inventor: LETA DANIEL PAUL
IPC: C10G71/00
Filed: 1999-02-12
Abstract: A process for preparing a lubricating oil basestock (43) having good low temperature properties is disclosed. The process includes contacting a feed (15) with a first amorphous isomerization catalyst (21) having a pore volume less than 0.99 ml/gm (H2O), an alumina content in the range of 30-50 % based on the isomerization catalyst and an isoelectric point in the range of 4.5 to 6.5. The isomerization step is followed by a catalytic dewaxing step using an intermediate pore crystalline molecular sieve (39) to produce a product (43). A  further embodiment includes a first amorphous isomerization catalyst having a pore volume less than 0.99 ml/gm (H2O), an alumina content in the range of 30-50 % based on the isomerization catalyst wherein the silica is modified with a rare earth oxide, yttria, boria or magnesia and an isoelectric point greater than but no more than 2 points greater than that of the base silica alumina.
Patent CA-2319241-A1 (CA)
Title: Retainer wire and a dentition retaining appliance using the retainer wire
Inventor: CHIKAMI KUNIO
IPC: A61C7/00
Filed: 1999-05-17
Abstract: An object of the present invention is to provide a retainer wire which can solve said problems of a conventional retainer wire and improve the extractive strength of the joint portion of a plastic portion and a metal wire portion. The present invention is directed to a retainer wire including: a holding portion formed in the shape of a circular arc so as to be able to be in contact with a dentition; and a metal wire metal extended from both ends of said holding portion; wherein said holding portion is made of a synthetic resin having transparency and a specified mechanical strength; and wherein said supporting portion is formed together with said holding portion into one body.
Patent CA-2319717-A1 (CA)
Inventor: OKUDA TATSUMI
IPC: H04Q7/32
Filed: 2000-09-15
Abstract: The invention provides a portable input device comprising a front panel 2 providing a portion of a casing, and a touch panel 3 accommodated in a recessed portion 24 formed in the front panel 2. The recessed portion 24 has a transparent part opposed to the screen of a display 6. The surface of the front panel 2 is provided with an exterior sheet 4 covering the touch panel 3 in the recessed portion 24. The exterior sheet 4 has a transparent portion opposed to a manipulation surface of the touch panel 3. An outer peripheral portion of the exterior sheet 4 has a rear surface adhered to the surface of a panel affixing portion 27 formed around the recessed portion 24. The input device is easy to assemble and usable for inputting data without the likelihood of dust and the like ingressing into the device.
Patent CA-2320173-A1 (CA)
Title: Synthesis of 1-(2-sulphoethyl)-pyridinium betaine
Inventor: BOGENSTATTER THOMAS
IPC: C07B45/02
Filed: 1999-01-22
Abstract: The invention relates to a method for the production of 1-(2-sulphoethyl)-pyridinium betaine, whereby pyridine is reacted with a sulphoethylating reagent from a group comprising carbyl sulphate, ethionic acid or the salt thereof and vinyl sulphonic acid or vinyl sulphonate, and the reaction occurs in an aqueous solution or in pyridine.
Patent CA-2320308-A1 (CA)
Title: Two-part captured-loop knotless suture anchor assembly
Inventor: THAL RAYMOND
IPC: A61F2/08
Filed: 1999-02-11
Abstract: This invention is a two-part captured-loop knotless suture anchor assembly which includes a suture anchor (25) with a snag device (32) thereon or therein, a catch, and a loop device (5). The device (5) facilitates reattachment, and repair of soft tissue which has torn away from a bone mass.
Patent CA-2322095-A1 (CA)
Title: Power and data distribution system for beam-mounted seating
Inventor: GEVAERT STEVEN C
IPC: A47C1/12
Filed: 2000-10-03
Abstract: A power and data distribution system for use in combination with a beam-mounted seating structure that includes a series of seat assemblies each mounted to a common support beam. The power and data distribution system includes a wireway that is mounted to the support beam and extends along the entire row of seats. The wireway includes a concealed main electrical conduit that extends along the length of the power and data distribution system. The power and data distribution system includes a series of access housings that extend from the wireway, and each access housing includes a pair of electrical outlets and a pair of data outlets. Each of the electrical outlets is coupled to the main electrical conduit contained in the wireway, while each of the data outlets is connected to a data line also passing through the wireway. The power and data distribution system is separate from the seating structure and can be attached and removed from the seating structure independent from the construction of the seating structure.
Patent CA-2324964-A1 (CA)
Inventor: SANDERS PERRY
IPC: F41B5/14
Filed: 2000-11-01
Abstract: A device and method for protecting the lower limb of an archery bow is disclosed. The device comprises a sheet of flexible material of sufficient size to attach to the lower limb and fold under the lower limb and a fastening mechanism for attaching the device to the bow.
Patent CA-2325356-A1 (CA)
Title: Key input device
Inventor: OKUDA TATSUMI
IPC: H01H25/04
Filed: 2000-11-08
Abstract: A key input device comprises a dome sheet 7 provided over a base plate 5 and having a plurality of dome portions, and a plurality of manual keys disposed above the dome sheet 7. Each of the dome portions is elastically restorably inverted by being depressed by the corresponding manual key to close contacts. The plurality of the manual keys described include a seesaw key 15 with a pivotal pin 15a, and the dome sheet 7 has a flat sheet portion 70 formed around the dome portions and comprising an inner region 74 extending inwardly of dome portions 72 to be selectively depressed by a seesaw key 15, and an outer region 73 extending outwardly of the dome portion 72. A spacer sheet 6 is interposed between the base plate 5 and the dome sheet 7 to thereby position the inner region 74 of the flat sheet portion 70 of the dome sheet 7 at a lower level than the outer region 73. The seesaw key 15 pivotally moves about the contact portion of the pivotal pin 15a and the inner region 74, whereby one of the dome portions 72 is depressed.
Patent CA-2325497-A1 (CA)
Title: Dietary supplement for preventing or reducing shedding of hair
Inventor: ALLEN BARBARA A
IPC: A23L1/30
Filed: 1999-03-18
Abstract: A dietary supplement for humans and hair-bearing pets such as dogs and cats, comprising safflower oil, sunflower oil, olive oil, soya oil, cod liver oil, lecithin, natural flavors, herbs, garlic, and zinc. When fed to a dog or cat daily in a proper dosage, the supplement reduces or eliminates non-seasonal shedding and promotes healthy skin and a glossy coat, silky coat, without affecting the dog's or cat's natural shedding cycle and without causing any harmful effects. The composition also may be administered topically to a human to reduce hair loss.
Patent CA-2331730-A1 (CA)
Inventor: YAPEL ROBERT A
IPC: F26B13/14
Filed: 1999-05-12
Abstract: A gap drying system (210) moves a substrate (216) having a coated side and a non-coated side between a heated platen (214) disposed on the non-coated side of the substrate (216) and a condensing platen (212) disposed on the coated side of the substrate (216). An insulation layer (240) is disposed between the heated platen (214) and the non-coated side of the substrate (216).
Patent CA-2334414-A1 (CA)
Title: Filtre passe-bande multipolaire a caracteristique elliptique
Inventor: SCHORNSTEIN STEFAN
IPC: H01P1/208
Filed: 1999-05-12
Abstract: L'invention concerne un filtre passe-bande multipolaire à caractéristique elliptique, comprenant des résonateurs double mode diélectriques hémisphériques, un diélectrique hémisphérique et des éléments de couplage et de compensation pour le réglage précis du filtre. Selon l'invention, chaque diélectrique est placé sur une base en matériau diélectrique.
Patent CA-2335009-A1 (CA)
Inventor: WENZEL TIMOTHY T
IPC: C08F2/38
Filed: 1999-11-29
Abstract: La présente invention concerne l'utilisation d'au moins un composé solide lequel, lorsqu'il est utilisé avec un catalyseur de polymérisation dans un procédé de polymérisation, a pour résultat un changement de phase du composé solide en un liquide rendant le catalyseur de polymérisation sensiblement ou complètement inactif.
Patent CA-2341037-A1 (CA)
Inventor: VORLAND LARS
IPC: A61P31/04
Filed: 1999-08-31
Abstract: L'invention concerne un peptide modifié de lactoferrine présentant un caractère cytotoxique, une longueur de 7 à 25 acides aminés comportant trois ou plusieurs résidus cationiques, et possédant un ou plusieurs acides aminés supplémentaires volumineux et lipophiles par rapport à la séquence native de lactoferrine, ainsi que des esters, des amides, des sels et leurs dérivés cycliques, et des procédés servant à préparer ces peptides, des compositions pharmaceutiques contenant ces peptides et l'utilisation de ces derniers en tant que médicaments, en particulier, qu'agents antibactériens ou antitumoraux.
Patent CA-2343722-A1 (CA)
Inventor: LEYBZUN MARK S
IPC: B23K26/02
Filed: 1999-09-09
Abstract: A laser cutting or welding device, the device having a laser head (10) and a robot (35), wherein the laser head is attached to the robot (35). The laser head (10) has a housing (12), a focal lens (26) disposed within the housing and a light source (18) in optical communication with the focal lens (26). The housing (12) has a nozzle with a tip (90), the tip having an exit port (17).  The laser head (10) has means (33) for adjusting a light path of a light beam directed from the light source onto a focal optic to center a focusing beam formed by the focal optic coaxial with the tip. In one aspect hereof, the laser device has a crash avoidance system.
Patent CA-2344749-A1 (CA)
Inventor: RAIKKONEN REIJO
IPC: G06Q20/00
Filed: 2001-04-24
Abstract: The objective of the present invention is to devise an m-commerce system which, without need for transferring credit card numbers or other confidential information relat-ing to a customer, offers providers of services and goods a centralized site that performs customer's validation, checks solvency, makes an invoice, carries out clearing of accounts, and collects and processes statistical informa-tion. The m-commerce system stores virtual bank ac-counts for each customer joined to the system. The ac-count indicates the customer's solvency. The system also stores information about the customers and merchants joined to the system. The system receives a solvency in-quiry sent by a merchant through the mobile telecommu-nications network. In response to the inquiry the m-commerce system checks whether the customer has sol-vency for the purchase. If so, the merchant server sends a sale message that includes all the details of the transac-tion concerned. In response to the sale message the m-commerce system starts data processing, during which the merchant's account is credited, the customer's ac-count is debited, and statistics and necessary databases are updated.
Patent CA-2345389-A1 (CA)
Title: Implantable sensor with wireless communication
Inventor: ZWIERS LYNN M
IPC: A61B5/00
Filed: 1999-09-07
Abstract: An implantable sensor device, such as a pressure monitor, is implanted in the left ventricle (LV), in other heart chambers, or else-where, from which it wirelessly communicates pressure information to a remote communication device. The sensor device can be im-planted using a placement catheter, an endoscope, or a laparoscope.  The device can be secured entirely within the LV or heart wall, such as by using a corkscrew, a helical anchor, a harpoon, a threaded mem-ber, a hook, a barb, a fastener, a suture, or a mesh or coating for receiving fibrous tissue growth. The implantable sensor device pro-vides less invasive chronic measurements of left ventricular blood pressure or other physical parameters. The wireless communica-tion techniques include radio-telemetry, inductive coupling, passive transponders, and using the body as a conductor (referred to as "in-tracorporeal conductive communication" or "personal area network").  Data from the receiver is downloadable into a computer for analysis or display.
Patent CA-2346963-A1 (CA)
Title: Thermosetting powder coating systems
Inventor: REICH GERHARD
IPC: C09D5/46
Filed: 1999-10-12
Abstract: The invention relates to thermosetting powder coating systems based on carboxyl-functional polyester resins, .beta.-hydroxyalkyl amides and/or polyepoxides and optionally, usual pigments, fillers and additives. The invention also relates to the production of said thermosetting powder coatin g systems and to their use, to protective layers consisting of these powder coating systems and to objects provided with protective layers of this type.  The invention also relates to polyester resins that are suitable for formulating thermosetting powder coating systems. The polyester resins have an acid value of 15 to 70 mg KOH/g, a hydroxyl value of max. 10 mg KOH/g and a glass transition temperature of at least 35 ~C. These polyester resins conta in up to 80 mol % isophthalic acid in relation to the total quantity of all of the dicarboxylic acids used, and 0.5 to 30 mol %, in relation to the total quantity of all of the diols, pentanediol 1.5 and/or at least one pentanedio l 1.5 with at least one alkyl substituent and/or at least one 3-oxa-derivative  of the aforementioned diols.
Patent CA-2347012-A1 (CA)
Title: Distributed transactional processing system and method
Inventor: SMITH ROBERT
IPC: G06F11/14
Filed: 1999-10-22
Abstract: A system and method for replicating data in a distributed transactional processing system having redundant cache memories and disk memories. The dat a replicating method includes updating a primary cache, followed by updating t he secondary cache. Next, the primary disk memory is updated, followed by the secondary disk memory being updated. Based upon the success of each update, a determination is made as to whether the data replication is successful. In a  number of instances, the data replication operation is determined to have be en successfully executed despite the failure of one or more memory updates. The  resulting database is highly available to the rest of the system.
Patent CA-2350790-A1 (CA)
Title: Well bore cutting and perforating devices and methods of manufacture
Inventor: PRATT DAN W
IPC: F42D3/00
Filed: 2001-06-14
Abstract: A tubing and casing cutter is shown which can be assembled in the field from a plurality of pressed segmented pellets of free standing explosive material. The segmented pellets have a liner glued to at least one exposed face thereof. The pellets are glued to a backup plate with two mirror image plates being stacked to form a plate assembly. A plurality of plate assemblies are stacked within a surrounding container to form the cutter. The pressed pellets can also be assembled within a cup-shaped container to form a shaped charge.
Patent CA-2351323-A1 (CA)
Title: Intracardiac grasp catheter
Inventor: FALWELL GARY S
IPC: A61B5/296
Filed: 1999-11-23
Abstract: A method of treating cardiac arrhythmia, including guiding a distal end portion of a catheter, the distal end portion having a distal tip and accommodating at least one ablation electrode into a desired intracardiac region, for example, from the inferior vena cava into the right atrium of a human heart, and then from the right atrium into the right ventricle of the heart, pulling the catheter backwards, for example, towards the inferior vena cava, until the distal tip engages an edge of an intracardiac orifice, for example, the tricuspid annulus whereby the at least one electrode engages a target tissue, for example, the isthmus of tissue between the tricospid annulus and the inferior vena cava, deflecting the distal tip into a hook-shaped configuration, and activating the at least one electrode to produce a substantially continuous lesion on the target tissue. The method makes use of a catheter pre shaped at its distal end, steerable with pull wires in two different normal planes, having one electrode which slides along the distal tip of the catheter.
Patent CA-2352261-A1 (CA)
Inventor: MAGUIRE MARTIN P
IPC: A61F2/82
Filed: 1999-11-23
Abstract: La présente invention concerne des composés de quinoléine/quinoxaline représentés par la formule (I) qui inhibent le facteur de croissance d'origine plaquettaire ou l'activité de la tyrosine kinase p56?lck¿. Par ailleurs, cette invention concerne des compositions pharmaceutiques contenant les composés précités, ainsi que leur utilisation pour traiter un patient souffrant/sujet à des troubles/états impliquant la différenciation cellulaire, la prolifération cellulaire, la production de matrices extracellulaires ou la libération de médiateurs et/ou l'activation ou la prolifération des lymphocytes T.
Patent CA-2352867-A1 (CA)
Title: Air separation method and system for producing oxygen to support combustion in a heat consuming device
Inventor: BOOL LAWRENCE E III
IPC: F23L7/00
Filed: 2001-07-11
Abstract: A method and system to separate oxygen from air for producing oxygen to support combustion of a fuel, thereby to produce heat in a heat consuming device. In accordance with the method and system a heated and compressed air stream is introduced into a ceramic membrane system having one or more oxygen-selective, ion conducting membranes to produce an oxygen permeate stream which is used to support combustion of the fuel.      The compressed air stream is heated within the heat consuming device itself which can be, for instance, a furnace or a boiler, through indirect heat exchange with flue gases or by radiant heat within a radiant heat exchange zone thereof. An oxygen lean retentate stream, produced through separation of oxygen from the compressed and heated air stream, can be expanded with the performance of work to produce an expanded air stream. The work of expansion can be applied to the compression of the incoming air stream. The expanded air stream can be used to preheat the compressed and heated air stream.
Patent CA-2353305-A1 (CA)
Inventor: BELIVEAU JEAN-LOUIS
IPC: E04B2/56
Filed: 2001-07-19
Abstract: The ledger mould assembly is suitable for use with a wall form assembly of t he type comprising a pair of spaced-apart parallel foam panels defining therebetween  a cavity for the setting of a flowable material for building an insulated wall. The ledger mould is used to receive a hardening flowable material and integrally forming a ledge r to the wall.   The ledger mould assembly comprises an elongated mould made of foam having  a planar front face spanning from top to bottom, a tapered bottom edge and at least one flared recess in the front face, opening outwardly and upwardly from bottom to top.  Mounting means are provided for horizontally mounting the mould against eith er one of the foam panels with the bottom down and the planar front face of the ledger  mould in contact with the planar outside face of the foam panel. This set-up allows flowable hardening material to be poured from the top of the mould into the flared recesses to form a ledger once it has hardened.
Patent CA-2355147-A1 (CA)
Title: Tube film blowing head
Inventor: MEYER ULRICH
IPC: B29C48/10
Filed: 2001-08-16
Abstract: A tube film blowing head includes one outer and one inner nozzle ring in which a ring chamber is formed extending in a conical or parabolic manner towards the circular nozzle gap and of which the inner nozzle ring, wherein a central bore for exchanging the pressurized air is connected by means of a screw connection to a central cone piece of the blowing head. This central cone piece has a bore that is aligned to the central bore. In order to create a screw connection between the inner nozzle ring and the center cone piece that is firm and simple to produce, the inner nozzle ring is connected to the central cone piece by means of a threaded bolt penetrating the central bore of the nozzle ring and provided with an axial bore in that the threaded bolt is screwed into the bore of the cone piece as the bore is also a threaded bore.
Patent CA-2356020-A1 (CA)
Title: Cannabinoid patch and method for cannabis transdermal delivery
Inventor: HERRMANN CAL C
IPC: A61K31/352
Filed: 2001-08-27
Abstract: A transdermal structure is provided for delivering cannabis chemical(s) to one's bloodstream. The structure comprises a backing layer which carries the cannabis chemical(s). The chemicals are contained in a film on the backing layer or within a cavity formed in the backing layer. Alternatively, an opening in a secondary layer that overlies the backing layer may be used to create the cavity. The structure is applied to one's skin so that the cannabis chemicals are in contact with the skin . A polymer material which is mixed with the cannabis and placed in the cavity or a membrane over the cavity may be used to control the flow of cannabis chemical(s) into the bloodstream. In an alternative embodiment, a porous material impregnated with cannabis chemical(s) may be used to hold the chemicals) in the cavity. Because of the relatively slow transdermal flow rate of cannabis materials, it is preferred to utilize permeation enhancers in conjunction with the cannabis carrier or reservoir matrixes or skin contacting adhesive layers.