baber/WOPTO huggingface dataset:
Patent CA-2275727-A1 (CA)
Title: Enhanced texture map data fetching circuit and method
Inventor: SHU HONGJUN
IPC: G06T15/10
Filed: 1997-12-19
Abstract: A circuit and method for increasing the processing efficiency of texture map data requests within a 3D subunit of a computer controlled graphics display system. The 3D graphics display subsystem includes a polygon engine, a texture map engine and a pixel pipeline. The texture map engine contains a texture map data access (TDA) circuit having a cache controller with a computer readable cache memory for containing recently used texture maps stored in (u, v) coordinate space. The cache controller is limited in handling only n cache miss operations simultaneously. In one embodiment, n is 1. The TDA circuit also contains a texture map address (TMA) FIFO memory unit for storing texture map addresses associated with texture data requests that hit or missed in the cache memory unit. Since the cache controller handles up to n misses, the texture engine stalls when the (n+1)th unprocessed texture request miss is encountered. Therefore, the TMA FIFO at any time contains at most n miss addresses therein. Processing efficiency is increased when a miss is encountered but the TMA FIFO contains unprocessed hit addresses. At this time, simultaneously with the cache controller fetching the texture data for the missed address, it can also advantageously: (1) supply data from the cache memory for the previously encountered and stored hit addresses; and (2) accept new hit addresses into the TMA FIFO thereby effectively avoiding a texture engine stall. This is quite unlike the prior art systems which process no hit addresses upon a texture miss but rather stall the texture engine.
Patent CA-2275869-A1 (CA)
Inventor: CHRISTIAN JOSEPH
IPC: B60C27/12
Filed: 1997-12-30
Abstract: The vehicle tire chain structure is disclosed, which includes a plurality of cross chains (12) which are arcuately spaced about the tire tread (102), and held in place by rope connectors (18), each of which are connected to the successive inboard and outboard ends of the cross chains. The assembly is held in place by an additional spreader rope, and its associated connecting elements, to facilitate the tightening of the assembly, and maintaining same in a taut condition during prolonged periods of use.
Patent CA-2276382-A1 (CA)
Title: Method and apparatus for fire extinguishing
Inventor: DRAKIN NIKOLAY VASILYEVICH
IPC: A61D1/06
Filed: 1999-06-25
Abstract: A method for extinguishing fire, wherein a gas an aerosol mixture is fed into a space includes steps of igniting a pyrotechnic composition that ensures a predetermined temperature profile during burning and a predetermined composition of the gas and aerosol mixture completely oxidizing the combustion products of incomplete combustion of the pyrotechnic composition by causing them to pass through a bed of catalytically active substances, which is located in the zone of the maximum temperature of the temperature profile of combustion of the pyrotechnic composition, with the temperature remaining constant by redistribution of said profile; cooling the combustion products and completely oxidizing them by reacting with substances having high heat absorbing capacity, concurrently with the filtering of the combustion products according to composition of the gas phase and particle size of the aerosol phase. An apparatus for extinguishing fire, having a casing (1) that has a discharge port (2), a combustion chamber (3) that is accommodated in the casing (1) and heat insulated from the walls of the casing (1), a pyrotechnic composition (4) and an igniter (5) that are received in the combustion chamber, a cooling section (9) and a complete catalytic oxidation section (6) that has a pair of spaced metal gratings (8a, 8b) between which a catalytically active substance is placed and that is located at a fixed distance from the pyrotechnic composition (4). A compensation device (10) is provided for maintaining the above--mentioned fixed distance during the burning of the pyrotechnic composition (4).
Patent CA-2280578-A1 (CA)
Title: Polarisation mode dispersion measurement
Inventor: EPWORTH RICHARD EDWARD
IPC: H04B10/2569
Filed: 1999-08-23
Abstract: A method of measuring the polarisation mode dispersion (PMD) of an optical transmission path carrying clocked digital data traffic involves modulating the state of polarisation (SOP) of the light launched into the transmission path, and detecting consequential frequency components in an electrical signal detected at the far end of the transmission path. The SOP modulation, when represented on a Poincaré sphere, has an oscillatory rotational component at a frequency f1 about a first axis of the sphere and an oscillatory rotational component at a frequency f2 about a second axis of the sphere that is orthogonal to said first axis, and where f1 ~ f2, f1 ~ 2f2, and f2 ~ 2f1.
Patent CA-2280582-A1 (CA)
Title: Compositions and methods for protecting animals from lentivirus-associated disease such as feline immunodeficiency virus
Inventor: SHEPPARD MICHAEL GEORGE
IPC: A61K48/00
Filed: 1999-08-20
Abstract: The present invention is directed to a novel strain of feline immunodeficiency virus, designated herein as FIV-141, and to attenuated forms of the virus produced by mutating specific regions of the viral genome. The virus and mutated forms of the virus may be used to induce the production of antibodies to FIV-141, and in vaccines designed to protect cats from FIV.
Patent CA-2280703-A1 (CA)
Title: A system for exchanging asynchronous data over a synchronous communication interface between a communication device and an external accessory
Inventor: HUTCHISON JAMES A IV
IPC: H04M1/60
Filed: 1998-02-11
Abstract: A portable communications device (200) and accessory system which provides full-duplex asynchronous communications between a portable communication device (200) and external accessories (214) over a synchronous digital interface (215). The system includes a digital signal processor (208) for generating a first synchronous digital voice signal, a UART (232) for generating a first asynchronous data signal, and a microprocessor (210) for generating a synchronous control command signal. The system further includes a first multiplexer (236) for multiplexing the first synchronous digital voice signal and the first asynchronous data signal and the synchronous control command signal onto an interface line (215). The interface line couples the communication device to the at least one external accessory (214). A second multiplexer (242) is coupled to the interface line (215), for routing the first synchronous digital voice signal and the synchronous control command signal to the at least one synchronous internal device (217), and for routing the first asynchronous data signal to the asynchronous internal device (230).
Patent CA-2281229-A1 (CA)
Title: Method and system for navigating a virtual environment
Inventor: WARE COLIN
IPC: G06F19/00
Filed: 1999-08-31
Abstract: A method and system for navigating in a three-dimensional virtual environment is provided. The present invention is particularly suited towards three-dimensional graphs representing computer programs, where nodes represent objects or other programming structures, and arcs in between the nodes represent function calls or other types of relationships between the structures. The collective nodes and arcs represent a specialized type of virtual environment.  At least a portion of the virtual environment is displayed on a monitor, the virtual environment portion being represented by a frustum, the frustum having a narrow portion at the front of the monitor and diverging towards the back of the monitor to give the perception of depth to a user. The frustum remains stationary, and has a focal point, usually at the centre of the monitor screen. When a user selects an object displayed on the monitor, the scene on the monitor is scaled by a predetermined amount. In addition, the scene is moved such that the selected object is translated towards the focal point. The scaled and moved scene is then displayed on the monitor. The steps of scaling and moving are repeated until the desired navigation is achieved. Rates of scaling and translating are preferably chosen so that the animation of the navigation is smooth. By making the navigation rapid, a user can be provided with both focus and context when viewing a three-dimensional graph. Other navigational features can be. included, such as automatic selection of the entity, or rotation of the virtual environment about the focal point.
Patent CA-2283361-A1 (CA)
Title: Optical fiber mach-zehnder interferometer fabricated with asymmetric couplers
Inventor: CRYAN COLM V
IPC: G02B6/28
Filed: 1999-09-24
Abstract: An asymmetric optical fiber Mach-Zehnder interferometer has first and second optical fibers connected at a first coupling region and a second coupling region. The first and second optical fibers form two interfering arms between the first and second coupling regions. To form the asymmetry, the propagation constant in a portion of the first optical fiber in one of the coupling regions differs from the propagation constant in a portion of the second optical fiber in that coupling region. The asymmetric structure provides 30 dB isolation over a greater wavelength span.
Patent CA-2283694-A1 (CA)
Inventor: GINOT FREDERIC
IPC: G01N27/447
Filed: 1998-03-06
Abstract: The invention concerns a device for the automatic chemical or biological analysis of samples to be manipulated, prepared and implanted in analysis solutions or on analysis gels to be analysed. Said device comprises a main frame (1) and a working surface (3) which are permanently integrated with at least one feed station (10) designed to receive at least one microplate (11) provided with a series of cells; at least one supply station (50) designed to receive at least one microplate (11) coated with analysis gel; a manipulator robot (30) capable of moving from the feed station (10) to the supply station (50) under the control of a central automatic steering unit to ensure, by means of a manipulating tool, the simultaneous taking of a unit volume of sample (13) in several cells of the microplate (11) then transfer and deposit in one operation said unit volumes in a predetermined location on the analysis gel, by means of a manipulating tool with replaceable head.
Patent CA-2284383-A1 (CA)
Inventor: PUSKAS JUDIT E
IPC: G01N27/04
Filed: 1999-10-01
Abstract: The present invention is directed to a method of determining the degree of saturation of a decontamination-removing substance or adsorbent such as an alumina absorbent or activated charcoal. The method is sufficiently sensitive to detect changes in the bulk specific electrical conductivity of the adsorbent.
Patent CA-2285008-A1 (CA)
Title: Electrically actuated disconnect apparatus
Inventor: HERBEN WILLIAM C
IPC: E21B23/04
Filed: 1998-03-09
Abstract: In drilling equipment having at least one remote assembly (62) attached to a drill string (12), an electrically actuated disconnect apparatus and method (10) for releasing the remote assembly (62) have an electric signal transmitter electrically connected to a release device (16). The release device (16) operates a retaining device (22) holding strainer blocking devices (24) therein. A strainer (56) is connected to the drill string (12) after the retainer (22) and through which drilling fluid flows until blocked by the strainer blocking devices (24). A one-way pressure relief mechanism (34) is provided in the drill string (12) conformed to operate when the flow of drilling fluid is continued after the strainer (56) is blocked by the strainer blocking devices (24) so that drilling fluid is allowed to impact against a moveable piston (44), the moveable piston (44) to conformed to the drill string (12), and moveable to apply pressure to move a disconnect shift tube (52) so as to shift the disconnect shift tube (52) and release a coupling key (32), thereby releasing the remote assembly (64) from the drill string (12).
Patent CA-2286170-A1 (CA)
Inventor: NUESKE REINHOLD H K W
IPC: E01H5/06
Filed: 1998-03-10
Abstract: A side plow assembly for an automotive vehicle, particularly a lightweight vehicle such as a ligthweight truck, pick-up or like vehicle, and then particularly a four-wheel drive vehicle.      The assembly includes a plow share mounted on one side of the vehicle. Seen in the normal direction of travel of the vehicle, the front end of the plow share is pivotally connected to the vehicle chassis by joint means. The rear pan of the share, as seen in the travel direction, is connected to a rear chassis part by means of an elongated bracing means whose length can be varied for adjustment of the angle of the side share in the horizontal plane relative to the travel direction. The bracing means is also pivotally connected to the chassis. The assembly also includes a lifting device which is connected between the plow share and the vehicle and functions to lift the share away from a ground surface and to lower the share into contact with the ground surface respectively.
Patent CA-2288117-A1 (CA)
Inventor: NAWROTH PETER
IPC: A61K38/36
Filed: 1998-05-08
Abstract: L'invention concerne l'utilisation de thromboplastine tissulaire en vue d'influencer, et notamment d'activer la formation vasculaire, en particulier pour la guérison de plaies.
Patent CA-2288849-A1 (CA)
Inventor: KOIVUKUNNAS PEKKA
IPC: D21G9/00
Filed: 1998-05-25
Abstract: The invention relates to a method in a paper machine in threading of paper web, in which method a narrower tail (T) is separated from the edge of the paper web and transferred to threading guiding means arranged in connection with the moving parts of a machine conveying the paper web. Before transferring the tail (T) to the threading devices, its free length is shortened, for example by crinkling, wherein its tensile stretch is increased and bending stiffness reduced.
Patent CA-2291098-A1 (CA)
Inventor: SIEGEL KEVIN P
IPC: G06Q40/00
Filed: 1998-05-27
Abstract: L'invention concerne un procédé mis en oeuvre par ordinateur servant à prévoir un risque financier. Le procédé comporte l'étape consistant à recevoir des premières données de transactions relatives à des transactions effectuées sur un premier compte de transactions financières. Le premier compte de transactions financières représente un compte de transactions financières établi au nom d'un détenteur de compte donné par un premier émetteur de compte. Le procédé comporte en outre l'étape consistant à recevoir des deuxièmes données de transactions relatives à des transactions effectuées sur un deuxième compte de transactions financières différent du premier. Le deuxième compte de transactions financières représente un compte de transactions financières émis au nom du détenteur donné par un deuxième émetteur de compte différent du premier. Le procédé comporte de plus l'étape consistant à évaluer les premières et les deuxièmes données de transactions sur la base d'un modèle préexistant afin de former une évaluation du détenteur de compte. D'autre part, le procédé comporte l'étape consistant à transmettre l'évaluation, si celle-ci est inférieure à un seuil de risque financier prédéfini, à l'un des deux émetteurs de comptes.
Patent CA-2291725-A1 (CA)
Title: Emballage et procede d'emballage
Inventor: AUCAMP DAVID
IPC: B65B31/04
Filed: 1998-06-05
Abstract: L'invention concerne des emballages et des procédés d'emballage s'utilisant notamment pour les matériaux à base de solides à écoulement fluide, tels que les poudres, les matériaux granulaires et similaire. Le matériau à écoulement fluide est conservé dans un premier récipient (2), constitué de matériau sensiblement imperméable mais comprenant une ou plusieurs parties perméables aux gaz (4). La ou lesdites parties perméables aux gaz (4) peuvent se présenter sous la forme d'une bande longitudinale ou d'une pastille d'étanchéité en contact avec la partie sensiblement imperméable (5) ou intégrée à celle-ci. La ou les parties imperméables aux gaz permettent l'application de vide à l'intérieur du premier récipient (2) lorsqu'il est fermé. Dans le mode de réalisation préféré de l'emballage, le premier récipient (2) peut être entouré d'un récipient extérieur (3) en matériau sensiblement imperméable et sous vide. Pour ce qui concerne l'emballage de produits pour lesquels des règles d'hygiène sévères sont en vigueur, tels que les laits en poudre, le vide peut être appliqué dans le récipient intérieur (2) d'abord et la ou les parties perméables aux gaz (4) peuvent être scellées à l'aide d'un moyen de scellement, avant la fermeture sous vide du récipient intérieur (2) à l'intérieur du récipient extérieur (3). Le procédé d'emballage peut consister à former et à remplir le récipient intérieur de sorte qu'un produit en bloc rectiligne plus facile à empiler et à transporter soit formé.
Patent CA-2292582-A1 (CA)
Title: A process for the treatment of effluent streams
Inventor: RAMSAY JAMES IAN
IPC: C02F1/52
Filed: 1998-06-03
Abstract: This invention relates to a process for removing sulphates and calcium from a water stream which comprises the steps of: combining the water stream and an amount of amorphous aluminium trihydroxide (Al(OH3)); allowing the formation of ettringite (3CaO.Al2O3CaSO4.31/32H2O) as a precipitate; and removing the precipitated ettringite from the water stream.
Patent CA-2299059-A1 (CA)
Title: Liner hanger
Inventor: BRISCO DAVID PAUL
IPC: E21B33/10
Filed: 2000-02-22
Abstract: An apparatus and method for forming a wellbore casing. An annular piston is displaced in the axial direction by pressurizing an annular piston chamber. The axial displacement of the piston radially expands a tubular member into contact with a preexisting tubular member. The radially expanded liner hanger is then decoupled from the apparatus.
Patent CA-2301170-A1 (CA)
Inventor: GAUTSCHI MARKUS
IPC: A23L27/20
Filed: 1999-07-07
Abstract: L'invention concerne des dicarboalcoxy dioxolannes représentés par la formule (I), qui sont stables dans des boissons acides aqueuses alcoolisées ou non alcoolisées. Ces composés conviennent donc particulièrement à des produits alimentaires, notamment des boissons, afin d'en stabiliser le caractère de citral en libérant ledit citral sur une longue période.
Patent CA-2301722-A1 (CA)
Title: Cold rolled steel sheet having improved bake hardenability
Inventor: GOTO KOICHI
IPC: C25C3/34
Filed: 1999-04-05
Abstract: Cold rolled steel sheets having improved bake hardenability is provided. Specifically, the present invention relates to a cold rolled steel sheet, with improved bake hardenability, comprising an ultra low carbon steel containing titanium and/or niobium, wherein the relationship between the contents of carbon and molybdenum in solid solution being regulated in a specified range, and a cold rolled steel sheet, with improved bake hardenability, which further contains a specified amount of boron in addition to the above constituents.
Patent CA-2301907-A1 (CA)
Title: Treatment of cell-mediated immune diseases
Inventor: OTT FRITZ
IPC: A61K31/23
Filed: 1998-08-18
Abstract: 9-cis retinoic acid and pharmaceutically acceptable salts and pharmaceutically acceptable hydrolyzable esters thereof, 9-cis retinal and pharmaceutically acceptable acetals thereof, and 9-cis retinol and pharmaceutically acceptable hydrolyzable esters thereof as well as metabolites of 9-cis retinoic acid have been found to be efficacious in treating T-helper cell type 1 mediated immune diseases in well tolerated doses. Preferably, the active ingredient is formulated as a medicament for oral or topical administration.
Patent CA-2303107-A1 (CA)
Title: System and method for detecting and managing fraud
Inventor: GAVAN JOHN
IPC: H04J3/17
Filed: 1998-09-11
Abstract: A system, method and computer program product for processing event records.  The present invention includes a detection layer (123), an analysis layer (133), an expert systems layer (139), and a presentation layer (143). The layered system includes a core infrastructure (1310) and a configurable, domain-specific implementation (1312). The detection layer (123) employs one or more detection engines, such as, for example, a rules-based thresholding engine (126) and a profiling engine (128). The detection layer can include an AI-based pattern recognition engine (132) for analyzing data records, for detecting new and interesting patterns and for updating the detection engines to ensure that the detection engines can detect the new patterns.
Patent CA-2307692-A1 (CA)
Inventor: HUGGLER PETER
IPC: A47J37/08
Filed: 2000-05-05
Abstract: A springless adjustable bread guard for a heating appliance requires no springs for returning the guard to a desired position. The heating appliance includes a fixed structure relative to the bread guard, and the bread guard includes a resilient bread guard arm having a longitudinal axis and at least one cross member. Each cross member is attached to the bread guard-arm spaced apart from a fast end of the cross member and at a point along the longitudinal axis of the bread guard arm. The bread guard arm is attached to the fixed structure to rotate about the longitudinal axis. The bread guard operates responsive to a force applied to the arm to rotate a first direction about the longitudinal axis so that one of the cross members contacts a portion of the fixed structure and thereby applies a force to the cross member that causes the arm to bow placing the bread guard in an inward position. The bread guard operates when the applied force is removed to rotate a second direction about the longitudinal axis to an outward position responsive solely to a return force generated by the bowed bread guard arm.
Patent CA-2308839-A1 (CA)
Title: Marine carrier
Inventor: BURKE ROY DAVID
IPC: B63B23/32
Filed: 2000-05-15
Abstract: The carrier includes a cradle having an elongated spine and a number of ribs  which are spaced along the length of the spine. The spine is pivotally attached to  a larger boat such that an end of the spine may be raised or lowered. When the end of the spine  has reached its lowermost extent, it is immersed in water and allows a smaller boat to be floated into the cradle. When the end of the spine is raised to its uppermost extent, the smaller boat is lifted entirely out of water. A hoist or actuator serves to raise and lower the end .
Patent CA-2309139-A1 (CA)
Title: Fluidized-bed gasification and combustion furnace
Inventor: HOSODA SHUGO
IPC: F27D99/00
Filed: 1997-11-04
Abstract: A gasification furnace and a combustion furnace are integrated with each other to form a single fluidized-bed gasification and combustion furnace in which unburned char generated in the gasification furnace is combusted in the combustion furnace, and the thus generated heat of combustion is utilized as a heat source for gasification. The fluidized-bed gasification and combustion furnace (1) comprises a gasification furnace (3) and a combustion furnace (4) which are divided by a first partition wall (2). In the gasification furnace (3), a revolving flow of the fluidized medium is formed by diffusion devices (32, 33) provided on furnace bottoms, and an upward flow of the fluidized medium partly flows in the combustion furnace (4). The combustion furnace (4) is divided into a main combustion chamber (6) and a heat recovery chamber (7) by a second partition wall (5). In the main combustion chamber (6), a revolving flow of the fluidized medium is formed by diffusion devices (34, 35) provided on furnace bottoms, and an upward flow of the fluidized medium partly flows in the heat recovery chamber (7).