baber/WOPTO huggingface dataset:
Patent CA-2534988-A1 (CA)
Title: Methods for generating and transmitting frequency hopped signals
Inventor: LAROIA RAJIV
IPC: H04B1/713
Filed: 2004-07-02
Abstract: Methods and apparatus for generating and transmitting frequency division multiplexed signals are described. The methods are well suited for use where a device uses a small subset, M, of a larger set of N subcarrier frequencies at any given time. Each transmitted FDM signal is generated by combining a plurality of individual analog subcarrier signals whose frequency may change, e.g., be hopped as a function of time. Each generated analog subcarrier signal is amplified, e.g., power amplified, and filtered prior to being combined with other analog subcarrier signals. Filters are used to compensate for or correct signal distortions and/or reduce interference between subcarriers. Fixed frequency filters are used in an exemplary frequency hopping OFDM system. In another embodiment, the filters are programmable and change, e.g., in terms of center frequency, to match the selected subcarrier frequency as frequency hopping occurs. The bandwidth of the programmable filters may remain constant.
Patent CA-2538305-A1 (CA)
Title: Apheresis device
Inventor: SCHMIDT WALTER
IPC: A61M1/34
Filed: 2004-09-13
Abstract: The invention relates to an apharesis device for use in the treatment of Alzheimer patients. Said device comprises a solid support with which a flow of blood or plasma can be contacted.
Patent CA-2538767-A1 (CA)
Inventor: GOGGIN CHRISTOPHER M
IPC: G08B21/24
Filed: 2004-09-13
Abstract: A method and apparatus are described for providing an activation signal based on a received radio frequency (RF) signal. The apparatus includes an RF  receiver configured to admit a received RF signal in a given frequency band and a converter configured to convert the admitted RF signal to a proportional signal. The apparatus also includes a low power comparator that has a first and second input and an output. A biasing and offset compensation circuit is configured to bias the proportional signal higher by an offset midrange voltage and bias the second input to an offset compensated voltage based on an offset between the inputs of the comparator. The comparator is configured to receive the biased proportional signal at the first input and produce the activation signal at the output when a voltage difference between the biased proportional signal and the offset compensated voltage exceeds a comparison voltage threshold.
Patent CA-2538793-A1 (CA)
Title: Hyaluronan (ha) esterification via acylation technique for moldable devices
Inventor: JAMES SUSAN P
IPC: C12N/
Filed: 2004-09-20
Abstract: A series of novel, melt- or mold-processable HA esters with varying aliphatic chain lengths are synthesized from silyl HA-quaternary (quat.) ammonium salt complex (preferably silyl HA-CTA, a silylated HA complex with cetyltrimethyl ammonium salt). Introduction of aliphatic acyl groups, preferably acid chlorides, to disrupt the strong HA intermolecular bonding, is done via acylation. Acylation takes place at the oxygen of the trimethylsilyloxy group -0-Si(CH3)3 in the silyl HA-CTA by removal of trimethylsilyl. groups therefrom.  Optionally, crosslinking may be performed during the shaping/molding of the HA  esters into a structure/device, or thereafter, if at all. Native HA can then be regenerated/recovered by saponification/ hydrolysis, removing acyl groups, -CH3(CH2)10CO, and the cetyltrimethyl ammonium salt groups, -CTA, from HA  ester. The structure/device of a preselected shape (e.g., porous or solid, bulk structure or fibers) may become a component of an assembly, a product that is further processed, integrated into another component (e.g., laminated, adhered, assembled, further shaped, chemically-intermixed/intermingled), and so on.
Patent CA-2538962-A1 (CA)
Inventor: LALANCETTE JEAN-MARC
IPC: C22B3/42
Filed: 2006-03-17
Abstract: An essentially open-circuit process for recovering value metal species from a laterite-type feedstock, the process comprising the sequential or unsequential steps of separating the laterite-type feedstock into a first and a second fraction; reacting an acid with a chloride salt in a first compartment, thereby generating gaseous HCl; chlorinating the first fraction with the gaseous HCl in a second compartment, thereby producing a chlorinated fraction, wherein excess HCl is recovered and dissolved in water, thereby producing a concentrated HCl solution; combining the chlorinated fraction and the second fraction into a mixture; leaching the mixture with the concentrated HCl solution in a third compartment, thereby producing a reaction mass; submitting the reaction mass to a separation of phases, thereby separating an insoluble residue from a head solution; and selectively recovering value metal species from the head solution.
Patent CA-2545791-A1 (CA)
Inventor: MATSUMORI YASUO
IPC: H01M10/36
Filed: 2004-11-11
Abstract: The present invention provides a lithium secondary battery which is improved in cycle characteristics and storage stability at an elevated temperature as well as protection from overcharge. In the battery, generation of a gas is also inhibited to prevent the battery from expansion. A non-aqueous electrolytic solution for the lithium secondary battery has an electrolyte in a non-aqueous solvent. The non-aqueous solvent is composed of a cyclic carbonate compound, a linear carbonate compound and a cyclohexylbenzene compound having a benzene ring to which one or two halogen atoms are attached. A volume ratio of the cyclic carbonate compound and the linear carbonate compound in the non-aqueous solvent is in the range of 20:80 to 40:60, or the non-aqueous solvent further contains a small amount of a branched alkylbenzene compound.
Patent CA-2546809-A1 (CA)
Inventor: MANGIARDI ERIC K
IPC: A61F2/91
Filed: 2004-11-20
Abstract: The present invention, in an exemplary embodiment, provides a stent, which combines many of the excellent characteristics of both silicone and metal stents while eliminating the undesirable ones. In particular, a principal objective in accordance with the present invention is to provide a family of stents where the relative hardness/softness of regions of the stent can differ from other regions of the stent to provide additional patient comfort and resistance to compression forces. Exemplary embodiments provide a stent that is covered so as to provide certain predefined characteristics. In particular, a covered stent is provided that is coated internally such that the outer scaffolding surface of the stent has enhanced friction points while the internal surface exemplifies certain characteristics.
Patent CA-2548109-A1 (CA)
Title: Accelerated organoborane amine complex initiated polymerizable compositions
Inventor: JOHNSON DEAN A
IPC: C08F4/52
Filed: 2004-12-21
Abstract: The invention is a two part polymerizable composition comprising in one part an organoboron compound capable of forming free radical generating species amine complex and in the second part one or more compounds capable of free radical polymerization and a cure accelerator comprising a) at least one compound containing a quinone structure or b) at least one compound containing at least one aromatic ring and one or more, preferably two substituents on the aromatic ring selected from hydroxyl, ether and both, where there are two substituents they are located either ortho or para with respect to one another and a peroxide containing compound. The second part may further contain an agent capable of causing the organoboron compound to form free radical generating species upon contacting the two parts. The first part may further comprises one or more compounds capable of free radical polymerization. This facilitates formulating compositions that have commercially desirable volumetric ratios of the two parts. Adhesive compositions of the present formulation provide excellent adhesion to low surface energy substrates, such as plastics.
Patent CA-2548867-A1 (CA)
Inventor: BROWN FRED A
IPC: H02K11/20
Filed: 2006-05-30
Abstract: An apparatus and method of starting an electric motor (having a rotor that rotates in a given direction during steady state operation from the at rest position) generates a preliminary signal that causes the rotor to rotate in an opposite direction to that of the given direction. The method and apparatus also begin rotation of the rotor in the given direction after the rotor rotates in the opposite direction.
Patent CA-2549266-A1 (CA)
Inventor: LINKLETTER DON R
IPC: F16N21/00
Filed: 2006-06-01
Abstract: A portable grease gun with the capability of being attached to either a grease containing barrel or a hose carrying grease from a grease supply container. An adapter may be mounted to the barrel mounting in place of a barrel to couple the grease gun to a hose connected to a grease supply container remote from the grease gun. The grease gun includes an output valve which restrains passage of grease at pressure below 30 psi.
Patent CA-2550825-A1 (CA)
Title: Methods and apparatus for reducing error floors in message passing decoders
Inventor: RICHARDSON TOM
IPC: H03M13/03
Filed: 2004-12-17
Abstract: An iterative message passing decoder, e.g., an LDPC decoder, operating in conjunction with a soft input - soft output signal processing unit, e.g., an ISI detector, has an error floor performance region influenced by the decoder~s suboptimal message passing nature. Error floor reduction is achieved by a simple message re-initialization mechanism. Decoder edge states, e.g., constraint to variable node messages in decoder memory, are reinitialized, e.g., for an iteration, during the decoding after soft values provided by signal processing unit have improved. During the message re-initialization and for some subsequent amount of iterative decoder processing, extrinsic information fed back from the decoder to the signal processing unit and/or soft values delivered to the decoder from the signal processing unit, in an outer communications loop, is temporarily frozen, e.g., using a switch and a buffer. Then, the outer communications loop is restored as the decoding continues, achieving improved decoding performance.
Patent CA-2554189-A1 (CA)
Title: Determinant wing assembly
Inventor: STRAND DAVID E
IPC: B64F5/10
Filed: 1997-03-21
Abstract: A method and apparatus for manufacturing wings includes a fixture that holds wing panels for drilling and edge trimming by accurate numerically controlled machine tools using original numerical part definition records, utilizing spatial relationships between key features of detail parts or subassemblies as represented by coordination features machined into the parts and subassemblies, thereby making the parts and subassemblies intrinsically determinant of the dimensions and contour of the wing. Spars are attached to the wing panel using the coordination holes to locate the spars accurately on the panel in accordance with the original engineering design, and in-spar ribs are attached to rib posts on the spar using accurately drilled coordination holes in the ends of the rib and in the rib post. The wing contour is determined by the configuration of the spars and ribs rather than by any conventional hard tooling which determines the wing contour in conventional processes.
Patent CA-2555066-A1 (CA)
Title: Ultrasonic head for pulse-echo multichannel inspection
Inventor: BANOS CAPILLA ESTER
IPC: G01N29/28
Filed: 2006-08-02
Abstract: Ultrasonic head for pulse-echo multichannel inspection applied to flat and curved surfaces, which is connected to a displacement system (3), and which comprises a chassis (1) housing a tilting frame (4) joined to said chassis via a first point of rotation (1a) and a second point of rotation (1b) which define a main tilting axis (1c) around which the tilting frame (4) rotates, said tilting frame (4) presenting a set of feeler-carriers (2) in its central opening (4h) which carry an array of ultrasonic feelers (12), said array of feel-carriers (2) being able to rotate around at least one axis of rotation (5, 5a, 5b) transverse to the main tilting axis (1c) in an independent movement to that made by the tilting frame (4), the tilting frame (4) being able to be divided into two secondary frames (6, 8) which rotate independently of the rotation of the tilting frame (4).
Patent CA-2555207-A1 (CA)
Inventor: BRESLOW MONICA J
IPC: A23B4/00
Filed: 2005-01-26
Abstract: Disclosed is a frozen additive for use with a heated beverage including a frozen liquid made from substantially the same ingredients as the heated beverage. Further disclosed is a system for cooling a heated beverage including a container holding a heated beverage with a first concentration of ingredients and a frozen additive with a second concentration of ingredients.  In the system the second concentration of ingredients is substantially the same as the first concentration of ingredients. Also disclosed is a method of cooling a heated beverage including the steps of: providing a heated beverage having a first concentration of ingredients; providing a frozen additive having a second concentration of ingredients; and combining the heated beverage and the frozen additive to form a beverage having a' third concentration of ingredients, wherein the third concentration of ingredients is substantially the same as the first concentration of materials.
Patent CA-2556158-A1 (CA)
Inventor: PHILLIPS ZOLTON ALEXANDER
IPC: A23L5/10
Filed: 2006-08-11
Abstract: A food composition having a nut and at least another food component is described. A method of making the food composition is also described. The method includes combining the nut and the other food component. A method of using the food composition is also described.
Patent CA-2557280-A1 (CA)
Inventor: COSMESCU IOAN
IPC: A61M1/00
Filed: 2005-01-24
Abstract: A multifunctional telescopic monopolar/bipolar electrosurgery pencil is disclosed for use with an electrosurgery unit (ESU). The monopolar/bipolar electrosurgery pencil includes a bipolar electrode having an insulator sandwiched between an active electrode and a return electrode wherein the bipolar electrode is connected to a handpiece capable of alternately effectuating cutting and coagulation with the bipolar electrode. The monopolar/bipolar electrosurgery pencil is capable of functioning as both a monopolar and bipolar device and can be used for open and closed laparoscopic and endoscopic procedures. Telescopic means for adjusting the length of the bipolar electrode is also provided as are means for smoke evacuation and suction/irrigation. The multifunctional telescopic monopolar/bipolar device can also be adapted for use with an ESU argon beam coagulator.
Patent CA-2558216-A1 (CA)
Inventor: REINHOLD ALFRED
IPC: H05G1/52
Filed: 2006-08-30
Abstract: An inventive device 2 for generating X-ray or XUV radiation, includes a means for directing a particle beam 12 of electrically charged particles towards a target 16. According to the invention, a deflection means for deflecting the particle beam 12 is of such a type that the central axis 18 of the particle beam 12 passes through a first point of deflection 20 and a second point of deflection 22 located at a distance from the first point of deflection 20 in the direction of propagation of the beam, in that the first and second points of deflection 20, 22 lie on an axis in line with a determined or determinable point of impact 24 of the particle beam 12 the target 16, and in that the particle beam 12 can be deflected by the deflection means in the direction of propagation of the beam in the region of one point of deflection 20, 22 irrespective of a deflection of the particle beam 12 in the region of the other point of deflection.
Patent CA-2560192-A1 (CA)
Inventor: POUDRIER DANY
IPC: B62D33/027
Filed: 2006-09-19
Abstract: A sound damping system for a swinging tail gate of a dump truck is described. The system comprises a two-part seal formed by a compressible sound damping material and a rigid compressing projection. One part of the two-part seal is secured along opposed vertical edges of opposed side walls of an open-top-end box of the truck. The other part is secured on opposed sides of an inner wall of the tail gate and aligned for facial contact with the first part.      The tail gate is hingedly secured at a top end thereof to the opposed side walls of the box. The sound damping system also provides a more efficient sealing system between the gate when in a closed position with the box of the truck.
Patent CA-2561166-A1 (CA)
Title: Antenne a materiau bip (bande interdite photonique) a paroi laterale entourant un axe
Inventor: FREYTAG LAURE
IPC: H01Q15/00
Filed: 2005-04-29
Abstract: Cette antenne à matériau BIP (Bande Interdite Photonique) comporte : - une paroi latérale (4) en matériau BIP entourant complètement un axe central (6) et espacé de cet axe central pour ménager une cavité centrale résonante, et - au moins un élément rayonnant (34 ) placé à l'intérieur de la cavité. Le ou chaque élément rayonnant est positionné à l'intérieur de la cavité pour exciter un champ électromagnétique parallèle à l'axe central, et ledit ou au moins un élément rayonnant est apte à exciter plus fortement les modes de la cavité centrale présentant une résonance radiale que les autres modes de la cavité centrale
Patent CA-2566368-A1 (CA)
Inventor: MAEKINEN JARI
IPC: G10L19/022
Filed: 2004-05-17
Abstract: The invention relates to a method for supporting an encoding of an audio signal, wherein at least one section of the audio signal is to be encoded with a coding model that allows the use of different coding frame lengths. In order to enable a simple selection of the respectively best suited coding frame length, it is proposed that at least one control parameter is determined based on signal characteristics of the audio signal. The control parameter is then used for limiting the options of possible coding frame lengths for the at least one section. The invention relates equally to a module 10,11 in which this method is implemented, to a device 1 and a system comprising such a module 10,11, and to a software program product including a software code for realizing the proposed method.
Patent CA-2569069-A1 (CA)
Inventor: AMIN ROBERT
IPC: C10L3/10
Filed: 2004-02-04
Abstract: A process for removing contaminants from a natural gas feed stream including water and sour species, which process comprises the steps of cooling the natural gas feed stream in a first vessel (12) to a first operating temperature at which hydrates are formed and removing from the first vessel (12) a stream of dehydrated gas (34); and cooling the dehydrated gas in a second vessel (14) to a second operating temperature at which solids of the sour species are formed or at which the sour species dissolve in a liquid and removing from the second vessel (14) a stream of dehydrated sweetened gas (62).
Patent CA-2570529-A1 (CA)
Title: Pyridinyl-isoxazoles and their use as herbicides
Inventor: WILLMS LOTHAR
IPC: A01N43/40
Filed: 2005-06-04
Abstract: The invention relates to the pyridinyl-isoxazoles of general formula (I) and the salts thereof, wherein Q represents one of the groups Q1, Q2 or Q3; R1, R2 and R3 represent different groups and n is 0 to 2.
Patent CA-2570820-A1 (CA)
Inventor: PALLE VENKATA RAGHAVENDRA CHAR
IPC: A61K31/196
Filed: 2004-06-10
Abstract: The invention provides novel salts of (S)-2-methoxy-3-[4-{3-(4-methanesulfonyloxyphenyl)propylamino}phenyl] proprionic acid, including Arginine salt of (S)-2-methoxy-3-[4-{3-(4-methanesulfonyloxyphenyl)propilamino}phenyl] proprionic acid monohydrate, Arginine salt of (S)-2-methoxy-3-[4-{3-(4-methanesulfonyloxyphenyl)propylamino}phenyl] proprionic acid, and (S)-2-methoxy-3-[4-{3-(4-methanesulfonyloxyphenyl)propylamino}phenyl] proprionic acid monohydrate. Various aspects and embodiments are included. Compositions containing novel salts of (S)-2-methoxy-3-[4-{3-(4-methanesulfonyloxyphenyl)propylamino}phenyl] proprionic acid are also provided.
Patent CA-2574152-A1 (CA)
Inventor: POLLOCK NATHAN
IPC: B25B7/00
Filed: 2007-01-16
Abstract: A pruner has a movable handle/blade assembly pivotally coupled to a static handle/blade assembly by a pivot assembly carried by the state handle. The pivot assembly further has a bush within the static handle and on which the movable handle/blade assembly is pivotally mounted, a spring for pivotally biasing the movable handle/blade assembly to an open position being retained by the pivot assembly with the static handle. Both the movable blade and static blade are mounted on the bush and are clamped laterally between two separate parts of the bush which are assembled together in screw threaded engagement, and the two blades are supported from the bush by a bearing ring of low friction material.
Patent CA-2574640-A1 (CA)
Inventor: FEINLEIB BORIS
IPC: F02M47/02
Filed: 2004-07-20
Abstract: Needle-spring locking device for pump-injectors (injectors) of diesels, in which in order to significantly increase the lift and closing pressures of the nozzle needle, the locking spring (17) is disposed in the central cavity of the body around the outer surface of the plunger~s bushing (2) and is connected with the needle (14) via a transversal cross-arm (15) disposed in the plunger bushing (2). This allows for increasing the average diameter of the needle spring (17) from 1.2-1.4 cm to 2-2.5 cm, and the spring power from 35-50 kgf to 180-220 kgf, respectively. In this case, the lift pressure of the nozzle body (10) (when the needle diameter is 0.6 cm) can amount to about 1200 kgf/cm2, and the closing pressure of the nozzle body (10) can amount to about 800 kgf/cm2, which corresponds to maximum injection pressures of 2000-2500 kgf/cm2, as required for ensuring greater fuel efficiency and lower exhaust smoke and particle matter emission in future diesels.
Patent CA-2575454-A1 (CA)
Inventor: LORENZ MARKUS
IPC: A61F2/91
Filed: 2005-08-01
Abstract: The stent matrix of a stent incorporates joints that permit stress-free relative movement of first and second structural portions (10, 12) of the matrix as the facing surfaces of the joint between the structural portions slide relative to one another. The joints are formed in the thickness of an annular wall of the stent, and are created by a computer- controlled laser beam cutting procedure.
Patent CA-2576685-A1 (CA)
Title: Atraumatic medical device
Inventor: TEAGUE JAMES A
IPC: A61B17/22
Filed: 2005-08-26
Abstract: A medical device, and related method, for manipulating material, such as calculi, within a patient's body includes a handle, a sheath, a retrieval basket, and a retainer coupled to the distal end of the retrieval basket. The retrieval basket includes a plurality of legs, each of which includes an intermediate portion located at the distal end of the retrieval basket. The retainer secures at least the intermediate portion of one of the plurality of legs to the intermediate portion of another of the plurality of legs.
Patent CA-2577462-A1 (CA)
Title: A biosensor utilizing pigment-synthesizing gene of a purple non-sulfur bacterium and a method for preparing such a biosensor
Inventor: YAGI KIYOHITO
IPC: C12Q1/68
Filed: 2005-08-22
Abstract: It is intended to provide a biosensor whereby measurement can be performed by a more convenient procedure and a specific chemical can be economically and visually detected. Namely, a biosensor for detecting a specific chemical comprising a recombinant purple non-sulfur bacterium which carries a sensor vector having been transferred into a pigment mutant of a purple non-sulfur bacterium with the deletion of a gene encoding spheroidene monooxygenase, characterized in that, in the sensor vector as described above, an inductive promoter showing a specific response to the specific chemical is connected in an operable matter in the upstream of thegene encoding spheroidene monooxygenase.