baber/WOPTO huggingface dataset:
Patent CA-2238332-A1 (CA)
Inventor: ENGMAN ANDERS
IPC: H04L27/20
Filed: 1996-11-15
Abstract: Methods and systems for determining a cosine (I) or sine (Q) component for the purpose of modulating a digital signal in radiocommunication systems are disclosed. Exemplary embodiments describe how such determinations may be performed using digital signal processing techniques to improve component accuracy, while reducing the amount of processor memory (e.g., DSP memory) used to accomplish this task. Phase information from a sampled signal is used to access one or more tables containing component values, or a combination of a component base values and difference values between consecutive base values.  The phase information can be used to derive an offset value from the difference values, which offset value is added to a component base value to provide a component value for output. This has the effect of reducing the amount of memory consumed while maintaining high resolution.
Patent CA-2240028-A1 (CA)
Title: Improved process for the production of bisphenols
Inventor: JUNE RAYMOND LAWRENCE
IPC: B01J31/08
Filed: 1996-12-18
Abstract: An improved process for the production of bisphenols is presented in which ketones and phenols are reacted in the presence of an acidic cationic exchange resin catalyst and a mercaptan cocatalyst. Prior to the reaction, alkyl alcohol is removed from the ketone stream. Cocatalyst is withdrawn from the reactor so that cocatalyst derivatives such as disulphide ions can be removed from the presence of the catalyst thereby reducing the possibility of catalyst poisoning.
Patent CA-2240347-A1 (CA)
Title: Methods and systems for reconstructing the state of a computation
Inventor: STANFILL CRAIG
IPC: G06F11/14
Filed: 1996-12-11
Abstract: Methods and systems for running and checkpointing parallel and distributed applications which does not require modification to the programs used in the system nor changes to the underlying operating system. One embodiment of the invention includes the following general steps: starting an application on a parallel processing system (40), controlling processes for the application, including recording of commands and responses (41, 42, 43), controlling a commit protocol (44), detecting failures of the application (45, 46), continuing execution of the application from the most recently committed transaction after "replaying" the recorded commands and responses (47).
Patent CA-2243972-A1 (CA)
Inventor: ARZENO HUMBERTO B
IPC: C07D473/18
Filed: 1997-01-18
Abstract: Process for preparing the L-monovaline ester of 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)-methoxy-1,3-propanediol and its pharmaceutically acceptable salts. The present process relates to an improved process whereby ganciclovir is esterified with an L-valine derivative to provide a di-valine ganciclovir intermediate.  Removal of one of the valine groups with a lower alkyl amine, benzylamine or benzyl methylamine provides the mono-valine ester compound of Formula I, (see formula I) These products are of value as antiviral agents with improved absorption.
Patent CA-2246001-A1 (CA)
Title: Novel compounds
Inventor: MICHALOVICH DAVID
IPC: A61K48/00
Filed: 1998-09-30
Abstract: SBSEMN1 polypeptides and polynucleotides and methods for producing such polypeptides by recombinant techniques are disclosed. Also disclosed are methods for utilizing polypeptides and polynucleotides in therapy, and diagnostic assays for such.
Patent CA-2247070-A1 (CA)
Inventor: MCLEOD ROBERT H
IPC: A01D41/00
Filed: 1998-09-14
Abstract: A field harvesting machine is described comprising: (a) a mobile frame adapted to be driven across a field of grain bearing crop material; (b) a harvesting attachment mounted to the frame extending forwardly therefrom for removing crop material from the field and delivering it generally rearwardly; (c) infeed means mounted on the frame for receiving crop material from the harvesting attachment and conveying it generally rearwardly; (d) a threshing and separating cylinder mounted transversely on the frame within a chamber for receiving crop material from the infeed means and separating the crop material into (i) a straw component and (ii) a graff component comprising a combination of grain, chaff, residual straw and weed seeds; (e) a graff collecting means beneath the threshing and separating cylinder; (f) a conveying system for transferring collected graff to a storage hopper; and (g) straw discharge means for discharging the straw component onto the field.
Patent CA-2247254-A1 (CA)
Title: A control system for a telecommunications system
Inventor: COOPER GUY ALEXANDER
IPC: H04B1/707
Filed: 1997-02-21
Abstract: The present invention provides a client station (64) and method for controlling a telecommunications system, the telecommunications system including a central station and a server station (56). The server station is arranged to maintain an object model (82) thereon representing the central station, and is connectable to the central station to send control signals to the central station in accordance with the object model (82). The client station comprises a communications manager (90) for establishing a connection with the server station to enable communication (80) between the client station (64) and the server station (94), thereby to manage the object model (82) maintained on the server. The client station has a memory for storing a portion of the object model (92), and a processor for processing commands received by the client station to determine whether status information associated with each object in the portion of the object model (92) should be altered, and for altering the status information based on said commands.
Patent CA-2249465-A1 (CA)
Inventor: WILS PIERRE
IPC: C12Q1/68
Filed: 1997-03-17
Abstract: A method for purifying pharmaceutical-grade plasmid DNA by means of at least one hydroxyapatite column chromatography step is disclosed.
Patent CA-2250031-A1 (CA)
Title: Inhaler
Inventor: VON SCHUCKMANN ALFRED
IPC: B65D83/04
Filed: 1997-04-25
Abstract: An inhaler having an inhaler body extending between two ends, an outlet at one of said two ends, a suction tube at the other of said two ends and an inhalation channel within the body providing fluid connection between the suction tube and the outlet, the suction tube being shaped and dimensioned for insertion into a blister containing powder such that the drawing of air through the inhaler body will draw powder from the blister through the suction tube and inhalation channel and out of the outlet, a channel inlet being provided in the suction tube and a cutter being provided around only part of the channel inlet to cut a film cover of a blister around only part of the channel inlet, at least one inlet passage extending between a passage inlet at a position along the length of the suction tube and a passage outlet adjacent the channel inlet to allow air into a blister and blister packs which are distinguishable according to their orientation and/or contents.
Patent CA-2250088-A1 (CA)
Inventor: SWAILS MARVIN EDSEL
IPC: D21H21/16
Filed: 1997-04-11
Abstract: Facial tissue is rendered resistant to water penetration while retaining softness by treating the fibers with a sizing agent prior to forming the sheet, or topically after the sheet is formed. The resulting tissue prevents the user's hands from becoming wetted during nose care.
Patent CA-2250496-A1 (CA)
Title: Speech and sound synthesizing
Inventor: JEFFWAY ROBERT W
IPC: G10L13/04
Filed: 1998-01-29
Abstract: A speech synthesizing circuit includes a speech synthesizing integrated circuit chip (10) and an external memory integrated circuit chip. The external memory may be audio data storage (40) on an audio synthesizing integrated circuit chip (34). The speech synthesizing integrated circuit chip (10) is connected (52) to the audio synthesizing integrated circuit chip (34) through an input/output port (20, 48) on each chip, and the microprocessor (16) of the speech synthesizing integrated circuit chip (10) retrieves speech data from the audio data storage memory (40) of the audio synthesizing integrated circuit chip (34). Access to the audio memory (40) is accomplished by software to modify address register (13) instructions pre-programmed into the speech synthesizing integrated circuit chip (10) during manufacture. A speaker (56) is connected to balanced speaker driver outputs (62, 64) of the speech synthesizing integrated circuit chip (10) and also to a single-ended speaker driver of the audio synthesizing integrated circuit chip (34).
Patent CA-2250659-A1 (CA)
Title: Composite armor material
Inventor: BOOS STEPHEN J E
IPC: F41H5/04
Filed: 1998-10-15
Abstract: The invention disclosed relates to a composite armor material comprising an outer ballistic impact resistant layer of a steel material having a Rockwell "C" scale hardness of 47-54, and an inner blast resistant steel layer having a fracture toughness of 3.6-6.5 J/mm, and a Rockwell "C" scale hardness of 28-36.
Patent CA-2250841-A1 (CA)
Title: Redistribution d'ethers de polyphenylene et ethers de polyphenylene a nouvelle structure
Inventor: DE WIT GERT
IPC: C08G65/48
Filed: 1998-01-08
Abstract: La présente invention concerne la distribution d'éthers de polyphénylène consistant à faire réagir l'éther de polyphénylène en solution avec un composé phénolique, des composés phénoliques spéciaux étant utilisés. La réaction de redistribution peut être réalisée dans du toluène ou des mélanges toluène/alcool. La réaction peut s'effecteur en présence ou en l'absence d'un catalyseur. Un procédé pour la redistribution d'éthers de polyphénylène consiste à faire réagir l'éther de polyphénylène en solution avec un composé phénolique de formule 3 dans laquelle les noyaux phénoliques sont disubstitués avec des groupes méthyle ou des groupes éthyle dans les positions ortho et le groupe X est séparé du noyau phénolique par l'intermédiaire d'au moins deux atomes de carbone et le composé phénolique présente un poids moléculaire non supérieur à 400 g/mol, de préférence non supérieur à 300 g/mol, et la redistribution s'effectue dans un mélange de toluène et de méthanol avec 1-30 % en volume de méthanol ou bien dans du toluène en présence d'un catalyseur de transfert de phase tel que du chlorure de tri(alkyle C8-C10) méthylammonium comme promoteur; et une diphénoquinone, de préférence de la 3,3',5,5'-tétraméthyl-4,4'-diphénoquinone est utilisée comme catalyseur, et la concentration molaire du composé phénolique est choisie de manière à se situer entre 0,9 et 1,1 fois la quantité molaire des unités monomères dans l'éther de polyphénylène dans la solution en réaction, plus de 90 % du composé phénolique pouvant être incorporé dans le polyphénylène.
Patent CA-2251018-A1 (CA)
Title: Device for the transfer of a load by thrust and traction in the same plan
Inventor: MARCELLI PIERRE
IPC: B66F9/19
Filed: 1997-04-11
Abstract: The present invention which discloses a device (1) for the transfer of a load (60) from a carrier onto a machine-tool supporting table and vice versa, is simple, inexpensive, very compact and of moderate weight. The transfer device consists of at least one handling arm (2) hinged and connected to the carrier and to the said load. The handling arm (2) is split into a front member (4) and a rear member (3) connected by a hinge. The closing and opening movement of the arm (2) is controlled by a jack (11) provided on the rear member (3) and its shaft is secured to a chain (12) intermeshing with two toothed wheels (14, 15) provided on the respective hinges (5, 6). The toothed wheels (14, 15) being stationary, the front (4) and rear (3) members of the arm rotate synchronously and in a ratio of 2 in relation to the jack (11), while the free end (7) of the arm follows a substantially rectilinear path parallel to the load transfer plane. The invention is useful in machine-tools, presses and any load transfer equipment.
Patent CA-2252447-A1 (CA)
Title: A directional hearing system
Inventor: WIDROW BERNARD
IPC: H04R25/00
Filed: 1997-04-17
Abstract: A directional acoustic receiving system is constructed in the form of a necklace including an array of two or more microphones mounted on a housing supported on the chest of a user by a conducting loop encircling the user's neck. Signal processing electronics contained in the same housing receives and combines the microphone signals in such a manner as to provide an amplified output signal which emphasizes sounds of interest arriving in a direction forward of the user. The amplified output signal drives the supporting conducting loop to produce a representative magnetic field. An electroacoustic transducer including a magnetic field pick-up coil for receiving the magnetic field is mounted in or on the user's ear and generates an acoustic signal representative of the sounds of interest. The microphone output signals are weighted (scaled) and combined to achieve desired spatial directivity responses. The weighting coefficients are determined by an optimization process. By bandpass filtering the weighted microphone signals with a set of filters covering the audio frequency range and summing the filtered signals, a receiving microphone array with a small aperture size is caused to have a directivity pattern that is essentially uniform over frequency in two or three dimensions. This method enables the design of highly-directive hearing instruments which are comfortable, inconspicuous, and convenient to use. The invention provides the user with a dramatic improvement in speech perception over existing hearing aid designs, particularly in the presence of background noise and reverberation.
Patent CA-2253516-A1 (CA)
Title: Interfacing a smart card with a telecommunications network utilizing a pots telephone set
Inventor: MANDELBAUM RICHARD
IPC: H04M11/00
Filed: 1997-03-07
Abstract: An apparatus is provided for interfacing a smart card with a telecommunications network using a conventional plain old telephone set. The apparatus includes a line interface unit having a first port, a second port, and a third port. The first port is adapted for coupling to a telephone network, the second port is adapted for coupling to a plain old telephone set, and the third port is adapted for coupling to a smart card microprocessor via a smart card reader.
Patent CA-2255946-A1 (CA)
Title: Track soundproofing arrangement
Inventor: NEUMANN BERNHARD
IPC: E01B19/00
Filed: 1997-05-23
Abstract: A noise control device for tracks (1) comprising sound-absorbing slabs (3) mounted at the rails (2) of the track (1), the slabs being supported on the rails (2) via elastic sections (5) and self-supportingly bridging the space between the rails (2). To improve silencing of the slabs (3) it is provided for the slabs (3) to be comprised of particles (9) of porous lightweight building material, which are combined by a binder. The slabs (3) have an embedded reinforcement (11). Advantageously, also silencing cavity resonators (14) are formed in the slabs (3). A special embodiment provides for the space between the rails (2) of a track to be bridged by slab parts (3a, 3b) arranged in pairs which are supported on each other at their rims (26, 27) facing each other.
Patent CA-2256567-A1 (CA)
Inventor: DOERMER PETER
IPC: C12N11/08
Filed: 1997-05-15
Abstract: Une méthode permettant de cultiver une première cellule de mammifère, que l'on met en contact avec les protéines de surface d'une seconde cellule de mammifère, est caractérisée par le fait que l'on cultive la première cellule en présence d'une vésicule immobilisée de la seconde cellule, ladite vésicule contenant des parties de la surface naturelle de la seconde cellule, ce qui est avantageux pour la multiplication des cellules de mammifère.
Patent CA-2257300-A1 (CA)
Title: Gene therapy delivery system for targeting to endothelia
Inventor: ILLUM LISBETH
IPC: A61K47/48
Filed: 1997-07-10
Abstract: A composition comprising biodegradable microspheres that act as carriers for the delivery of DNA to the endothelial cells of a vascular bed, wherein the microspheres carry a net negative charge and to which is adsorbed positively charged particles of a smaller size, wherein such positively charged particles comprise a conjugate of DNA and a cationic compacting agent.
Patent CA-2258465-A1 (CA)
Inventor: KUETHE DAVID FOREST
IPC: B65D73/00
Filed: 1999-01-13
Abstract: A wrap-around band is provided for ganging together a plurality of individually complete packages. The resulting combination is a unitary product for purchase as a single item.  The individually complete packages around which the band wraps have a protruding compartment within which the saleable goods are packaged. Each protruding compartment is not covered by the wrap-around band and is thus fully visible to the potential purchaser prior to purchase.  At least two of the individually complete packages can have profiles which are different from each other and still be accommodated by the wrap-around band.
Patent CA-2258720-A1 (CA)
Title: Compositions a base de recepteur de la thyrotropine humaine
Inventor: RAPOPORT BASIL
IPC: C12N5/22
Filed: 1997-06-05
Abstract: La présente invention concerne des compositions à base de récepteur de la thyrotropine, lesquelles compositions conviennent particulièrement à des utilisations thérapeutiques et de diagnostic.
Patent CA-2261611-A1 (CA)
Title: Chemically modified elastomers and blends thereof
Inventor: SCHAUDER JEAN ROCH
IPC: B29K77/00
Filed: 1997-08-08
Abstract: This invention relates to grafted ethylene-higher .alpha.-olefin polymers and blends thereof. Preferred grafted ethylene-higher .alpha.-olefin polymers are multimodal EPDM's having 5-40 weight % of a higher molecular weight, higher ethylene content, lower diene content fraction grafted with maleic anhydride.  These polymers can then be used as modifiers for additional polymers such as polyamides, polyesters, and other EPDM's.
Patent CA-2261865-A1 (CA)
Title: Lake of an azo dyestuff
Inventor: BINDRA AMRIT
IPC: C09B63/00
Filed: 1997-07-18
Abstract: Disclosed are compositions comprising one or more compounds characterized by formula (I): wherein each R is independently a hydrocarbyl, hydroxy, hydrocarbyloxy, carboxylic acid, carboxylic acid ester, carboxylic acid amide, sulfonic acid, sulfonic acid amide, imidazolone or nitro group; n is 0, 1 or 2; and M is at least one divalent metal. A process for preparing azo pigment compositions is also disclosed. Paint, ink and plastic compositions containing the foregoing pigments compositions are disclosed.
Patent CA-2263575-A1 (CA)
Title: An embolization device for positioning in a blood vessel
Inventor: MOLGAARD-NIELSEN ARNE
IPC: A61F2/00
Filed: 1997-08-21
Abstract: An embolization device for positioning in a blood vessel comprises an elongated wire body (1) which in its unloaded condition has a predetermined shape and has an elongated shape with a substantially straight centre line during its insertion through a catheter (18) to a placement site in the blood vessel and after its release from the catheter assumes a complexly curved shape which depends on the predetermined shape and on the blood vessel impact on the wire body. In its predetermined shape the wire body has at least one section (4) located between its front and back ends in which the centre line has substantially no curvature or such a small curvature that along a length of at least 20 mm it follows a helix-free path. The front end section (2, 2', 2") of the wire body is adapted to be frictionally locked to the vessel wall when discharged from the catheter, before said helix-free section (4) has been discharged from the catheter. When the helix-free section (4) is discharged it will bend sideways and seek towards the middle of the vessel lumen and continue towards the opposite vessel wall where it is frictionally locked. At continued pushing out many such vessel-crossing wire portions (20) occur, which provides efficient occlusion of the vessel.
Patent CA-2265282-A1 (CA)
Inventor: SHIMIZU SHINGO
IPC: A61F13/49
Filed: 1999-03-12
Abstract: A topsheet for body fluids absorbent article having a plurality of liquid-pervious apertures 6, the topsheet including an upper fibrous layer having a relatively low density and a lower fibrous layer having a relatively high density. Around each of the apertures 6, the first and second fibrous layers 11, 12 are integrated together so that the topsheet 2 has a density progressively increasing from an upper surface towards a lower surface of the topsheet 2 and has, in the proximity of the lower surface, a density further higher than in the second fibrous layer 12. The topsheet thus formed improves so that an upper surface thereof can be maintained in a dry state during use of the article having the topsheet 2.
Patent CA-2265419-A1 (CA)
Title: Variable day start tablet dispenser
Inventor: LAMBELET LAWRENCE E JR
IPC: A61J1/03
Filed: 1999-03-12
Abstract: This invention relates to a substantially circular tablet dispenser component system which may be adapted for a variable day start of a prescribed periodic tablet regimen. Also provided are a tablet dispenser kit, a tablet package adapted for filling the tablet dispenser system, methods of filling the tablet dispenser of the invention and methods of administering a prescribed regimen of medication using the tablet dispenser system of the invention, with both "any day start" and "any therapy package."
Patent CA-2266937-A1 (CA)
Title: Method of metering a liquid additive into a liquid silicon-containing material
Inventor: TROMBLEY WAYNE EDWARD
IPC: B01F15/02
Filed: 1999-03-24
Abstract: A method of metering a liquid additive into a liquid silicon-containing material. The method comprises feeding a liquid silicon-containing material through a first rotary gear positive displacement pump causing a driving mechanism connecting the first rotary gear positive displacement pump to a second rotary gear positive displacement pump to rotate. The rotating driving mechanism causes the second rotary gear positive displacement pump to pump a liquid additive at a volume flow rate proportionate to the volume flow rate of the liquid silicon-containing material through the first rotary gear positive displacement pump.
Patent CA-2270544-A1 (CA)
Inventor: EDHOLM PHILIP K
IPC: H04L12/56
Filed: 1997-10-31
Abstract: A configurable connection subsystem to connect first ports coupled to a switching fabric and second ports connected to a digital system, whereby the connection subsystem comprises: configurable switch means for connecting the first ports to the second ports in response to configuration control signals; and control means, coupled to the configurable switch means, for creating and sending configuration control signals to the switch means to configure the switch means to connect each of a selected number of the second ports to corresponding ones of the first ports, the control means including means for receiving load inputs indicating a need for the selected number of ports, and configuration means for determining a configuration of the switch means based upon the selected number of ports.
Patent CA-2271426-A1 (CA)
Title: Low water no volatile organic compound hair dyeing composition
Inventor: MASSONI JACK
IPC: A61K8/34
Filed: 1999-05-11
Abstract: A low or no VOC hair lightener or dying composition with a low water content and a high organic content comprising: (a) a developer phase comprising: (i) water; (ii) an oxidizing agent; and (iii) optionally a thixotropic control agent; and (b) a tint phase comprising: (i) 0-50 weight percent water; (ii) 0-10 weight percent dye; (iii) 10-50 weight percent of a non VOC solvent; (iv) 5-60 weight percent of a thickener; (v) a sufficient amount of an alkalizer so that the hair coloring composition has a pH of 6-12.