baber/WOPTO huggingface dataset:
Patent CA-2233245-C (CA)
Title: Circuit d'excitation d'emetteurs de television numeriques
Inventor: NICKELL DAVE
IPC: H04N19/89
Filed: 1998-03-27
Granted: 2006-05-09
Abstract: Un circuit d'excitation pour recevoir des signaux de télévision numériques d'entrée provenant d'une source et pour convertir les signaux de télévision numériques en un format normalisé pour la radiodiffusion par des étages d'amplification de puissance d'émission de télévision via une antenne, comprend un circuit de récupération de données pour extraire des données et des signaux d'horloge en provenance du signal de télévision numérique d'entrée pour fournir en sortie les signaux d'horloge numériques afin délivrer séparément les signaux d'horloge numériques et les signaux de données numériques, un circuit de randomisation destiné à modifier l'ordre des signaux de données numériques extraits en conformité avec les normes de télévision numérique, un circuit de codeur pour coder les signaux de données numériques en paquets synchronisés pour recevoir les signaux de données numériques à la fréquence d'entrée de signaux de télévision numériques, un circuit d'entrelacement pour effectuer un entrelacement convolutif des paquets de signaux de données numériques synchronisés pour recevoir des paquets de signaux de données numériques à une seconde fréquence, un circuit codeur pour coder les signaux de données numériques convolutés entrelacés avec un code de type treillis selon les normes de la télévision numérique, un circuit d'insertion de synchronisation pour l'insertion de signal de synchronisation de trame et de segment dans les signaux de données numériques codés, un circuit de filtrage pour limiter le spectre des signaux codés de données numériques à la norme de télévision numérique, un circuit d'insertion de signal pour l'insertion d'un signal d'horloge numérique extrait dans la sortie du circuit de filtrage, un circuit de conversion numérique-analogique pour convertir les signaux de données numériques et les signaux d'horloge numériques en signaux analogiques pour la transmission par l'étage amplificateur de puissance, et un contrôleur de fréquence pour recevoir des signaux d'entrée et commander des signaux de sortie, même en l'absence du signal d'entrée.
Patent CA-2233254-C (CA)
Inventor: KNOBLACH WALTER
IPC: F17D5/04
Filed: 1996-09-16
Granted: 2007-05-15
Abstract: The invention relates to an apparatus for determining the concentration profiles of liquid or gaseous substances along a route, in which a line is laid along the route that is embodied such that the substances can penetrate into its interior; the line is filled with a text medium, and the column of the text medium is forced through the line at chronological intervals and moved past a sensor that is sensitive to the substrances, and a first barrier means is incorporated between the sensor and the line, and at least one second barrier means is incorporated into the line and keeps the column of text medium substantially stationary in the position of repose.
Patent CA-2237075-C (CA)
Inventor: OSTROVER LEWIS S
IPC: H04N21/2343
Filed: 1994-10-13
Granted: 2001-05-29
Abstract: Disclosed herein is a player for playing a software carrier containing thereon digital data representative of picture information having a base aspect ratio and for deriving a video signal having one of multiple aspect ratios, said software carrier including a code indicative of said base aspect ratio, comprising means for representing a selected aspect ratio, said representing means normally representing a default aspect ratio; means for allowing a user to select one of said multiple aspect ratios, thereby to change the represented aspect ratio from the default to a selected aspect ratio; means for reading and processing digital data read from said software carrier; means for generating from said digital data, in accordance with the represented selected aspect ratio, successive digitized frames; and means for converting said successive digitized frames to a corresponding video signal. Also disclosed are a system for generating a video signal and a software carrier.
Patent CA-2242523-C (CA)
Title: Data compression/expansion using a rice encoder/decoder
Inventor: BRUEKERS ALPHONS ANTONIUS MARI
IPC: G11B20/10
Filed: 1997-11-10
Granted: 2005-07-12
Abstract: A data compression apparatus is disclosed for data compressing a digital information signal obtained from a digital audio signal. The digital information signal comprising p-bit samples, where p is an integ er larger than 1. The apparatus comprises an input (16) for receiving the digital information signal, a lossless compression unit (18) f or carrying out a substantially lossless compression step on the digital information signal so as to obtain a data compressed digital information signal. The lossless compression unit (18) comprises a Rice encoder, which Rice encoder is distinguishable by a code parameter m. Furthe r, an output terminal (22) is available for supplying the data compressed digital information signal. The Rice encoder comprises a generato r unit (30) for generating said code parameter m from N samples of the digital information signal in accordance with formula (I) whe re A and B are constants and x[n] is the n-th sample of the N samples, where N is an integer larger than 0. Preferably, A=1 and B=1, and m = M, where (II) and the sign 'L' signifies a rounding of the value of M to the value of the nearest lower integer.
Patent CA-2255940-C (CA)
Inventor: COLLINS IAN RALPH
IPC: C09K8/92
Filed: 1997-05-29
Granted: 2005-05-03
Abstract: Produit chimique d'amélioration de la production dans des champs pétrolifères, en particulier inhibiteur d'entartrage, sous forme de particules dudit inhibiteur enrobées, par exemple par un agent dispersant. Ledit enrobage peut être un polymère tel qu'un polyester de polyacide oligomère, un alcool alcoxylé polymère ou un condensat de polyamine d'acide gras, ou bien il peut être également un tensioactif et peut être utilisé sous forme d'une suspension dans une huile inerte, tel que du diesel ou du kérosène, pouvant être injectée dans une formation souterraine pour inhiber la formation de dépôts, par exemple de tartre, dans des puits de pétrole pendant un laps de temps plus long que les composés exempts d'enrobage.
Patent CA-2256881-C (CA)
Inventor: BARKAN MORDHAY
IPC: H04L9/32
Filed: 1998-12-22
Granted: 2008-08-12
Abstract: Disclosed is a method for safe distribution of encryption keys including a known public and secret private keys in establishing a secure link between computer users residing at separate locations whom have no previous secure communications. The secure communication link occasionally and anonymously interrogates the key distribution center for the certificate pertaining to the computer users in ensuring the validity and integrity of the information stored in the center which is not tampered by any unauthorized persons. The interactively interrogating of the key distribution center is conducted via a trusted and verified certificate decision making process which encompasses the acknowledging to user who receives a valid certificate, accepting an encrypted message, key distributed center's answer to the correct up-to-date certificate, decrypting the key distributed answer via the public key, and matching the answer's identification. As the result of the multi-steps process exchanged among users via key distributed center and other secure devices, the secure link can be established between the computer users in allowing data to be transferred from one computer location to another computer location in providing a very high reliability and confidentiality of users' data connectivity.
Patent CA-2259798-C (CA)
Inventor: NAEGELE KENNETH V
IPC: B41J17/42
Filed: 1993-09-30
Granted: 2003-11-04
Abstract: A thermal demand printer for printing on media is a novel system which includes a ease structure including a hinged cover panel, easily removable guide structures and media hanger, and a single central support wall to which the various components are attached.  The printer includes a power supply circuit for receiving power from an external source and conditioning it for operation of the printer.  An input device is provided for receiving command signals related to the operation of the printer.  A control circuit for processing the command signals and generating corresponding control signals for controlling the operation of the printer and a printhead assembly for processing the control signals and generating corresponding control signals for controlling the operation of the printer are mounted in the case structure and coupled to the input device and the power supply circuit.  The printhead assembly includes a printhead support structure which controls the printhead.  A ribbon take-up spindle, method of operating the take-up spindle using a PNDC motor, and a spring wrap clutch device help to control the tension in the transfer ribbon used in the printer.  The printer also includes a medial sensor and a method of sensing media by way of detecting the opacity of the media passing through the sensor.  The printer includes a method of printhead control using double data loading and a method of accelerating and decelerating media relative to the printhead using pulse width modulation.
Patent CA-2261090-C (CA)
Title: Dishwasher detergent composition containing an anticorrosive agent
Inventor: AUBAY ERIC
IPC: C11D7/14
Filed: 1997-07-15
Granted: 2004-11-16
Abstract: A detergent composition containing alkali-metal silicate with an average molar ratio of SiO2/M2O of 1-4.2, preferably 2.5-4.2, wherein M is an alkali metal, the composition being non-corrosive to glass, crystal, porcelain and decorative prints thereon upon repeated washing. The composition being such that when disposed in a washing medium at a normal working concentration, a protonated silicic monomer Si(OH)4 is produced in a concentration of at least 2.5x10-3 mol/liter of the washing medium.
Patent CA-2263014-C (CA)
Title: Compositions and methods of catalyzing the rate of iron reduction during acid treatment of wells
Inventor: GIRGIS-GHALY MAGDY
IPC: E21B43/27
Filed: 1999-02-25
Granted: 2007-04-17
Abstract: Methods and compositions for preventing precipitation of iron compounds during acid treatments of wells by catalyzing the rate of iron reduction during such treatments. Reduction of ferric ions is accelerated utilizing co-catalytic amounts of antimony ions in combination with other materials to minimize precipitation and other complications which result from iron compounds during acid treatments. Such other materials may include co- catalytic amounts of copper ions and optional iodide ions; as well as at least one of phosphinic acid, salt of phosphinic acid, or a mixture thereof.
Patent CA-2268155-C (CA)
Inventor: LOHBECK WILHELMUS CHRISTIANUS
IPC: E21B17/08
Filed: 1997-11-21
Granted: 2006-04-18
Abstract: A connector for interconnecting a pair of adjacent sections (8 and 9) of an expandable tubing string comprises a plastically expandable sleeve (6) that is arranged co-axially around or inside the ends (7) of the interconnected tubing sections (8 and 9) and a series of circumferentially spaced mechanical fasteners (5), such as screws or rivets, for fastening the sleeve to each of said ends (7).
Patent CA-2268726-C (CA)
Inventor: WECH MICHAEL
IPC: F04B9/04
Filed: 1999-04-14
Granted: 2007-11-06
Abstract: A single-piece piston and drive assembly for use in a motor-actuated pump to meter a predetermined amount of lubricant or other liquid. The drive assembly includes a rotatable drive shaft, an eccentric cam insert, a cam rod, and a walking beam. The walking beam is coupled to the piston, the cam rod shaft, and a biasing mechanism. When the drive shaft is rotated, movement of the cam rod shaft causes the walking beam to pivot and move the piston along a stroke to dispense the liquid. The piston operates in association with a flow adjustment stem that regulates the amount of liquid metered by the pump, and a valve assembly for evacuating the liquid from the pump chamber into and through an outlet fitting.
Patent CA-2273817-C (CA)
Inventor: CUPPLES BARRETT L
IPC: C10G50/02
Filed: 1997-11-12
Granted: 2006-01-31
Abstract: A synthetic lubricant material is produced by forming a catalyst complex of a boron trifluoride catalyst and at least one alcohol promoter in the absence of olefinic monomer, then oligomerizing a C4-16 olefinic monomer by adding the olefinic monomer to a reaction vessel containing the catalyst complex, under boron trifluoride pressure, to produce an oligomer product. At least 50 weight % of the olefinic monomer is C8-16 olefinic monomer.
Patent CA-2280251-C (CA)
Inventor: NORQUEST ROBERT C
IPC: A61F13/26
Filed: 1999-08-12
Granted: 2008-06-10
Abstract: The present invention is an applicator barrel with a taped finger grip. The applicator barrel includes a barrel body having an outer surface. A three-dimensional tape is connected to a portion of the outer surface and includes a first surface and a second surface opposite said first surface. The first surface has at least one integrally formed gripping structure extending outwardly from the first surface to provide a gripping surface, and the second surface is adhesive to connect the tape to the barrel.
Patent CA-2286244-C (CA)
Inventor: MEMORY RUSSELL
IPC: A01C19/00
Filed: 1999-10-14
Granted: 2007-02-20
Abstract: A metering system for an air cart is provided in which a portion, preferably one-half, of a meter roller can be selectively disengaged from a common drive input. The metering system typically comprises two roller halves located in a common housing. The driven half of the meter roller is directly rotated by the rotation of the drive input. In a preferred embodiment of the invention, the controlled half of the meter roller is engaged or disengaged from rotation by a wrap spring clutch. The drive input does not engage the controlled meter roller half directly. Instead, the drive input extends within a hollow shaft which extends through the controlled half of the meter roller with the drive input lying concentrically within it. When only half the meter roller is required, the operator can disengage the clutch and stop rotation of the controlled half of the meter roller without stopping the operation of the air cart. In other words, the drive input provides continued rotation of the driven half of the roller with rotation of the controlled half being dependent on activation and deactivation of the clutch. This unique design enables the meter assembly to be contained in a common housing while providing a simple means for controlling a portion, e.g. half, of the meter roller. The clutch may be remotely activated by the operator. Therefore, when the operator requires the entire meter roller to rotate, the clutch is engaged. When only half the meter roller is required, the operator can disengage the clutch and stop rotation of the controlled half of the meter roller without stopping overall operation of the air cart.
Patent CA-2289693-C (CA)
Title: Capteur a portee proximale comprenant un signal analogique de poursuite rapide
Inventor: SINGH DONALD R
IPC: G01S13/10
Filed: 1999-03-22
Granted: 2008-01-22
Abstract: L'invention concerne un capteur de proximité doté d'un générateur qui émet un signal dont une petite partie est utilisée comme signal de référence et le reste rayonne vers une cible. Le rayonnement réfléchi par la cible est égalisé et/ou normalisé par rapport au signal de référence. Les signaux sont comparés en termes de relation de phase relative. Cette relation implique la distance de la cible à partir d'une antenne. Un exemple de cible peut être une roue de véhicule sur rail. Une certaine partie de la roue est mesurée en termes de distance à partir du capteur. Cette distance peut permettre de déterminer l'usure de la roue. Cette usure est calibrée par rapport à un signal seuil ou à une distance de référence. De même, on peut déterminer la vitesse et la direction de la roue de véhicule sur rail à partir du signal rétroréfléchi au capteur de proximité.
Patent CA-2295255-C (CA)
Inventor: REINHARD ANDREAS
IPC: A61H3/00
Filed: 1998-04-23
Granted: 2005-05-24
Abstract: The invention relates to a suit for problems associated with orthostasis which is comprised of a pair of trousers made of a slightly stretchable textile material. A plurality of essentially linear or wavy strips (14, 15) are inserted along the entire length of the trousers.      Said strips are made of double-walled, liquid-tight, slightly stretchable textile material. The two layers of this material are connected to one another at connection points. This results in the production of cavities which are filled with a liquid.      Suspenders (11) hold the trousers and are simultaneously constructed as reservoirs (12) for the liquid. In order to increase the pressure on the abdominal region, a flat bladder (13) can be placed in the trousers and, like the strips (14, 15), can be supplied with fluid from the reservoirs (12). As a result, liquid columns are produced which extend over a large portion of the body height. Said columns build up a compensating pressure on the legs and the lower abdomen. The trousers are closed by two lateral zip fasteners (21). The knees and genital region are covered by elastic inserts (16, 17). The strips (14, 15) are either essentially straight or wavy on both sides.
Patent CA-2300974-C (CA)
Inventor: MALPASS DENNIS BENEDICT
IPC: C07F3/02
Filed: 1998-08-11
Granted: 2008-10-21
Abstract: Hydrocarbon solutions of a dialkylmagnesium compound having reduced viscosity, are disclosed which comprise: (a) a hydrocarbon solvent; (b) an dialkylmagnesium compound normally soluble in hydrocarbon solvents; and (c) an effective viscosity reducing amount of a compound selected from the group consisting of a compound having silicon-oxygen bonding, a compound having silicon-nitrogen bonding, and mixtures thereof. Representative viscosity reducing agents include:  tetraalkylorthosilicate compounds, such as those of general formula Si(OR)4, where R is an alkyl group containing from 1 to about 4 carbon atoms, as exemplified by tetraethylorthosilicate; alkylsilazane compounds, such as a hexaalkyldisilazane compound containing from 1 to about 4 carbon atoms in the alkyl groups therein as exemplified by hexamethyldisilazane; and silicone oil.
Patent CA-2301922-C (CA)
Title: Multiple-agent hybrid control architecture for intelligent real-time control of distributed nonlinear processes
Inventor: NERODE ANIL
IPC: G06F15/16
Filed: 1998-08-18
Granted: 2005-08-09
Abstract: A Multiple-Agent Hybrid Control Architecture (MAHCA) (20) uses agents to analyze design, and implement intelligent control of distributed process. A network of agents can be configured to control more complex distributed processes. The network of agents interact to create an emergent global behavior. Global behavior is emergent from individual agent behaviors and is achieved without central control through the imposition of global constraints on the network of an interagent invariance principle. At each update time, the active plan of each of the agents in the network encodes equivalent behavior module a congruence relation determined by the knowledge clauses in each agent's knowledge base (28). The Control Loop (236) and the Reactive Learning Loop of each agent can be implemented separately. The MAHCA can be used for compression/decompression for processing and storage of audio or video data.
Patent CA-2302197-C (CA)
Title: Method and apparatus for register mark identification
Inventor: PATEL PIYUSHKUMAR
IPC: G06V30/224
Filed: 1998-09-02
Granted: 2006-05-16
Abstract: The function of a Color Register Control system on a printing press is to maintain close registration between colors printed on a surface by various printing cylinders. The control acquires an image of a cluster of register marks (712) printed by various printing cylinders. The register mark is a geometrically unique mark. The mark cluster is acquir ed by the camera (708) and each mark pattern is identified by checking shape of individual marks. Resulting location of a mark is used to compute and correct registration errors. The image is analyzed to identify marks printed by various printing cylinders. Register error is determined by computing the lateral and circumferential distance between marks printed by a print cylinder and a master print cylinder. Any error detected in this process is corrected by activating correction motors, typically stepper motors, on print cylinders. The control utilizes a commercially available IBM-PC compatible computer (700).
Patent CA-2303447-C (CA)
Inventor: MANDEVILLE W HARRY III
IPC: A61P31/00
Filed: 1998-09-08
Granted: 2008-02-12
Abstract: A method for treating pathogenic toxins in a mammal, such as a human, comprising treating the mammal with a therapeutically effective amount of a polymer comprising a cationic group attached to the polymer backbone. The polymer can be a homopolymer or a copolymer. In one embodiment, the polymer is a copolymer comprising a monomer having a pendant ammonium group and a hydrophobic monomer.
Patent CA-2304434-C (CA)
Title: Method for communication with a transport system
Inventor: FRIEDLI PAUL
IPC: B66B3/00
Filed: 2000-04-05
Granted: 2008-11-18
Abstract: In this man/machine interface (1) a control unit (1.1) constantly checks for the presence of contactlessly communicating information carriers (1.0). If a user with an information carrier (1.0) is located in the reception range, the control unit (1.1) requires the information carrier (1.0) to transfer at least identification data of the user to the control unit (1.1). An individual communication surface matched to the respective user is generated on the basis of the data. (Fig. 2)
Patent CA-2307123-C (CA)
Title: Device and methods for determination of analyte in a solution
Inventor: PIERSON MARK W
IPC: B01J19/00
Filed: 1998-10-27
Granted: 2007-04-24
Abstract: Method and assay devices for the detection of the presence or amount of biological material, analyte(s), or microorganism(s) in a sample. The method includes the steps of liquefying th e sample (if necessary) and distributing the liquefied sample over the surface of the assay device. The device may comprise an incubation plate, a dip stick device, or other devices. The devices have at least one reagent provided within the devices. Some devices have a generally flat horizontal surface which is divided into a plurality of recessed wells. Others have one or more surfaces with reagent island(s) immobilized thereon. Each well or reagent island is adapted to hold an aliquot of liquid. The wells or reagent islands are sized and shaped, and formed of a suitable material, to hold the aliquot within the well or reagent island by surface tension. Any excess liquid from the liquefied sample is drained from the surface of the device. The method then involves incubating the assay device until the presence or amount of the biological material, analyte, or microorganism is determined.
Patent CA-2310759-C (CA)
Inventor: NASON DAVID D
IPC: G06F9/44
Filed: 1998-11-18
Granted: 2004-02-03
Abstract: L'invention concerne un procédé permettant de créer une interface utilisateur graphique et d'accéder à cette interface dans la zone de surbalayage à l'extérieur de la zone de visuel normalement utilisée par les systèmes d'exploitation courants. Cette zone classique est généralement appelée "plan de travail", et elle est utilisée comme interface utilisateur graphique avec le système d'exploitation. Le plan de travail affiche les images correspondant aux fichiers, aux documents et aux applications disponibles pour l'utilisateur. Dans les environnements courants, le plan de travail est restreint à un ensemble préétabli de résolutions (par exemple, 640x480, 800x600, 1024x768), conformément aux normes VGA et SVGA. Les limites affichables en dehors de cette zone correspondent à la zone de surbalayage.