baber/WOPTO huggingface dataset:
Patent CA-2302289-C (CA)
Title: Spatio-temporal processing for communication
Inventor: JONES VINCENT K
IPC: H04J99/00
Filed: 1997-08-27
Granted: 2005-11-08
Abstract: The invention provides a space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or multiple receiver antenna elements, or multiple polarizations of a single transmitter antenna element and/or single receiver antenna element, and is not restricted to wireless contexts. One embodiment employs a substantially orthogonalizing procedure (SOP) in conjunction with a plurality of transmitter antenna elements and one receiver antenna element. The SOP decomposes the time domain space-time communication channel that may have inter symbol interference (ISI) into a set of parallel, space-frequency, SOP bins wherein the ISI is substantially reduced and the signal received at a receiver in one bin of the SOP is substantially independent of the signal received in any other bin. The decomposition of the ISI-rich space-time channel into substantially independent SOP bins makes it computationally efficient to implement various advantageous spatial processing techniques.
Patent CA-2304598-C (CA)
Title: Compositions, procedes et dispositifs permettant de conserver un organe
Inventor: HASSANEIN WALEED H
IPC: A01N1/02
Filed: 1998-09-23
Granted: 2009-03-10
Abstract: Compositions, procédés, systèmes/dispositifs et supports utilisés pour conserver un organe prélevé dans un état viable et de fonctionnement avant son implantation. L'appareil de perfusion d'organes comprend une chambre de conservation permettant de stocker l'organe pendant la période de conservation. On utilise un circuit de perfusion comprenant une première ligne qui envoie un fluide oxygéné à l'organe et une deuxième ligne qui décharge l'organe du fluide appauvri. L'appareil de perfusion comprend également un dispositif associé au circuit de perfusion pour maintenir l'organe à une température sensiblement normothermique.
Patent CA-2305889-C (CA)
Title: Device and method for transmitting preamble of access channel in mobile communication system
Inventor: KIM YOUNG-KY
IPC: H04W76/02
Filed: 1999-08-17
Granted: 2003-12-30
Abstract: A mobile station device and method which includes a preamble generator for generating a preamble signal intermittently to be transmitted during a preamble interval prior to a transmission interval of a reverse access channel message; and a transmitter for spreading and modulating the preamble signal received from the preamble generator and transmitting it to a base station.
Patent CA-2307535-C (CA)
Inventor: HASANI NAADER
IPC: G01R31/3185
Filed: 2000-05-04
Granted: 2002-05-28
Abstract: A method of testing the care logic in a digital system, the method having a sequence of test operations including a shift-in operation in which a test stimulus is shifted into scanable memory elements in the core logic, a capture operation in which data in the memory elements is captured, and a shift-out operation in which captured data is shifted out of the core logic for analysis, comprises the improvement of, for each the test operation, concurrently enabling the domain clock of each clock domain in the core logic at the beginning of each test operation, performing the test operation in each domain and disabling the domain clock at the end of each test operation in each domain. The method allows all of the clock domains, including signal paths which traverse domain boundaries and/or have multi-cycle paths to be tested concurrently and at their respective functional clock rate of each clock.
Patent CA-2308555-C (CA)
Title: Process for producing 3-methyltetrahydrofuran, and process for producing an intermediate thereof
Inventor: IWASAKI HIDEHARU
IPC: C07D307/06
Filed: 2000-05-16
Granted: 2004-06-22
Abstract: The present invention provides:   1. a process for producing 3-methyltetrahydrofuran, comprising the steps of reacting 3-methyl-3-buten-1-ol with hydrogen peroxide in the presence of zeolite to obtain 3-hydroxy-3-methyltetrahydrofuran, and reacting the resultant 3-hydroxy-3-methyltetrahydrofuran with hydrogen in the presence of an acidic substance and a hydrogenation catalyst.   2. a process for producing 3-methyltetrahydrofuran, comprising reacting 3-hydroxy-3-methyltetrahydrofuran with hydrogen in the presence of an acidic substance and a hydrogenation catalyst.   3. a process for producing 3-hydroxy-3-methyltetrahydrofuran, comprising reacting 3-methyl-3-buten-1-ol with hydrogen peroxide in the presence of zeolite.   4. a process for producing 3-methyldihydrofuran, comprising dehydrating 3-hydroxy-3-methyltetrahydrofuran in the presence of an acidic substance.   5. a process for producing 3-methyltetrahydrofuran, comprising reacting 3-methyldihydrofuran with hydrogen in the presence of a hydrogenation catalyst, and 6. a process for producing 3-methyltetrahydrofuran, comprising cyclizing 3-methyl-3-buten-1-ol in the presence of iodine.
Patent CA-2311200-C (CA)
Inventor: CHAKRAVARTI SHRIKAR
IPC: C01B32/50
Filed: 2000-06-09
Granted: 2004-09-14
Abstract: A system for recovering absorbate such as carbon dioxide from an oxygen containing mixture wherein carbon dioxide is concentrated in an alkanolamine containing absorption fluid, oxygen is separated from the absorption fluid, and carbon dioxide is steam stripped from the absorption fluid and recovered.
Patent CA-2313164-C (CA)
Inventor: SHINITZKY MEIR
IPC: G01N33/68
Filed: 1998-12-07
Granted: 2008-04-15
Abstract: L'invention concerne une technique diagnostique qui permet de détecter la schizophrénie chez un sujet. Selon la technique, on injecte à un sujet une préparation comprenant des protéines dérivées des plaquettes ou des fractions desdites protéines, ayant un pHi supérieur à 6,5 environ, puis on détermine la survenue d'une réaction de type hypersensibilité retardée sur le site de l'injection. Une réaction positive indique qu'il y a une forte probabilité pour que le sujet testé soit schizophrène. L'invention concerne également la préparation de protéines utilisée avec ladite technique diagnostique, ainsi qu'un procédé permettant de la préparer et une trousse destinée au diagnostic de la schizophrénie selon la technique ci-dessus.
Patent CA-2315354-C (CA)
Inventor: TRANTOUL FRANCOIS
IPC: B41M1/18
Filed: 1999-10-22
Granted: 2009-08-11
Abstract: The invention concerns a method for producing a particular photoluminescent polychromatic printed image which consists in: producing at least one set of at least three filtered monochromatic images (6a, 6b, 6c) from a particular original polychromatic image visible in the visible light filtered with a spectral bandwidth not greater than 15 nm, along at least three wavelengths of fundamental colours equal to the wavelengths of luminescent pigments which are used, with the corresponding filtered monochromatic images (6a, 6b, 6c) for printing separately, above one another, three printed monochromatic pictures (8a, 8b, 8c). The invention also concerns the resulting picture, a protective device and a document bearing such a picture.
Patent CA-2318950-C (CA)
Title: Oxygen sensing membranes and methods of making same
Inventor: BERGER JOSEPH
IPC: G01N21/64
Filed: 1999-01-18
Granted: 2010-10-26
Abstract: Optical sensor formulations comprising polymeric sensing formulations and methods of predictably making optical sensor formulations, for, e.g., measuring O2 levels in patient blood samples. These formulations may be, e.g., deposited as a membrane on light-transmissive substrates. In an embodiment, O2-sensing formulations may be made by a process including selecting a first homopolymer comprised of first monomeric units, the first homopolymer having a first Perm O2 value; selecting a second homopolymer comprised of second monomeric units, the second homopolymer having a second Perm O2 value that is different from the first Perm O2 value; and copolymerizing the first and second monomeric units to obtain a copolymer having an intermediate Perm O2 value, i.e., between the two Perm O2 values, the intermediate Perm O2 providing the desired Perm O2 for the desired oxygen sensing formulation. By adjusting the relative amounts of the first and second monomeric units, a series of polymers having a desired range of intermediate permeability values (and hence Stem-Volmer characteristic k sv values) may be obtained.
Patent CA-2323732-C (CA)
Inventor: FELDSHTEIN FELIX ISAAKOVICH
IPC: A61B1/005
Filed: 1999-02-09
Granted: 2006-12-12
Abstract: Cette invention se rapporte à l'étude des structures internes d'objets à l'aide de systèmes optiques. Cette invention concerne plus précisément un dispositif de tomographie optique cohérente, ainsi qu'un scanner transversal à fibre optique qui fait partie de ce dispositif et qui entre dans la composition d'une sonde à fibre optique. Cette invention concerne également un procédé d'étude des tissus biologiques in vivo, lequel procédé permet d'établir des diagnostics des tissus étudiés en fonction de l'état de la membrane de base. A cette fin, un interféromètre possède un épaulement de mesure qui comprend le scanner transversal. La partie mobile du scanner se compose d'un conducteur de courant (19) qui englobe le système magnétique dans la région de l'un de ses pôles (25), et d'une fibre optique (13) qui fixée rigidement au conducteur (19) et qui joue le rôle de console élastique, ce qui permet de miniaturiser la sonde à fibre optique. Le système magnétique se présente sous forme de deux aimants permanents (22, 28) qui sont alignés au niveau de leurs pôles analogues (25, 29), tandis que la fibre optique (13) est disposée dans une ouverture traversante définie par des gorges qui se font face et qui sont pratiquées dans lesdits aimants permanents (22, 28) du côté des pôles alignés. Ce système permet d'optimiser la structure de la sonde à fibre optique tout en limitant les dimensions du boîtier de cette dernière. La sonde à fibre optique est disposée dans l'extrémité distale du canal pour instruments d'un endoscope. L'étude de tissus in vivo à l'aide de ce dispositif permet d'établir un diagnostic non invasif de ces derniers en fonction de l'état de la membrane de base (46).
Patent CA-2326636-C (CA)
Inventor: MADDESS TEDDY LEE
IPC: A61B3/10
Filed: 1999-03-30
Granted: 2007-10-30
Abstract: This invention concerns the detection of neural damage to the optic nerve, optic radiations and white matter of the visual brain indicative of various neurological disorders but with particular application to multiple sclerosis. The method involves simultaneous measurement of the shape and latency of responses to visual stimuli presented simultaneously in different parts of the visual field of the two eyes, separating out linear and nonlinear response components, and most particularly separati ng out binocular interaction responses to assess neural function within each half o f the visual cortex. Because rough retinotopicity is maintained in the optic nerve, throu gh the optic radiations and the visual cerebral cortex, stimulation of the separate parts of the visual field permits isolation of responses from different component parts of these neural elements and therefore from the results obtained an objective assessment of damage to these separate neural components can be made simultaneously.
Patent CA-2327162-C (CA)
Title: Protecting communications network integrity
Inventor: ARAVAMUDAN MURALI
IPC: H04M7/06
Filed: 2000-11-30
Granted: 2004-11-23
Abstract: A method and apparatus for protecting against network damage in next generation communications networks. More particularly, network safety is achieved using semantic restriction of higher level call processing protocol primitives coupled with dynamically programming the various network routing elements to enforce both connection control and rate control.
Patent CA-2327678-C (CA)
Title: Filtre servant a raccourcir une reponse impulsionnelle et possedant des contraintes spectrales supplementaires afin d'emettre sur des porteuses multiples
Inventor: MARCHOK DANIEL
IPC: H04L27/26
Filed: 1999-04-05
Granted: 2007-12-18
Abstract: L'égalisation d'une voie dans un système de communication à porteuses multiples consiste à calculer la réponse spectrale désirée, à raccourcir la réponse impulsionnelle de la voie, de façon à limiter une partie importante de l'énergie de la réponse impulsionnelle à une zone plus courte qu'une longueur ciblée et à filtrer le signal en fonction de la réponse spectrale désirée. Un système de communication à porteuses multiples peut comprendre un premier filtre de raccourcissement d'impulsion recevant un signal de sortie d'un convertisseur analogique-numérique et acceptant des coefficients. Un deuxième filtre de raccourcissement d'impulsion peut recevoir le signal de sortie d'un convertisseur analogique-numérique, produire un signal de sortie et transmettre des coefficients au premier filtre de raccourcissement d'impulsion. Un générateur de signal de référence peut sortir un signal de référence. Un comparateur peut comparer le signal de sortie et le signal de référence afin de sortir un signal d'erreur. Un processeur adaptatif peut calculer des coefficients destinés au deuxième filtre de raccourcissement d'impulsion en fonction du signal d'erreur.
Patent CA-2329170-C (CA)
Title: Layout tool for laying out perpendicular lines
Inventor: BUTWIN ROBERT S
IPC: B43L7/10
Filed: 1998-09-04
Granted: 2005-01-04
Abstract: The instrument includes a pair of members (7, 8) arranged together to form an "L" at a right angle. The two opposing ends of the "L" are also affixed to another member (9) making the shape of a 3-4-5 triangle. All members of the instrument are permanently attached, therefore, misalignment is avoided and accuracy is assured and maintained. The two members are configured to slide with respect to one another at the pivot point of the "L" and simply pivot at their opposite ends about their pivot points connecting the third member and creating an enclosed triangle. A spring loaded rivet mounted in one of "L" members slides in a skewed slot (12) in the adjacent member to open the triangle from a closed position where the three sides of the triangle are substantially parallel to one another. The rivet locks in a semi-circular aperture which maintains the tool in a proper locking position.
Patent CA-2332896-C (CA)
Inventor: TRIPATHY BHAWANI S
IPC: F16J15/32
Filed: 1999-06-30
Granted: 2007-06-12
Abstract: A unitized oil seal assembly (20, 220, 320, 420) has a sealing disk (34, 234, 334, 434) that is split along its outer edge to define a pair of split sections, one of which (48, 248, 348, 438) is fixed to an outer annular carrier member (30, 230, 330, 430) and supports the other split section (50, 250, 350, 450) and an unsplit section (52, 252, 352, 452) in sealing engagement with corresponding sealing surfaces of a wear sleeve (32, 232, 332, 432) to exclude contaminants and retaining lubricant, respectively, from passing by the seal assembly (20, 220, 320, 420).
Patent CA-2340024-C (CA)
Inventor: KANDIN PATRICE
IPC: E06B7/02
Filed: 1998-08-19
Granted: 2007-01-09
Abstract: The invention relates to a device for preventing insertion from the outside of instruments that could pivot the control bar situated on the inside of the skylight. The device is constituted by a box and two narrow strips positioned in an offset manner so as to form a baffle preventing any instrument being inserted while leaving a free passage for ventilation air. Spacers serve to stiffen the assembly. A cap protects the control lever for opening the lock of the skylight, and a fork enables the latch existing on the skylight to be moved.
Patent CA-2343682-C (CA)
Title: Bottom bracket for upward acting door
Inventor: WHITLEY L BLAKE
IPC: E05D15/16
Filed: 2001-04-11
Granted: 2005-05-17
Abstract: Bottom edge brackets for an upward acting door each include a base part including fastener receiving bores for securing the brackets to the bottom edge of the door, a flange projecting substantially normal to the base part including a connecting lug mounted for connection to a becket or loop of a door lifting cable and an integral rolled tubular guide roller support portion for supporting the shaft of a door guide roller. Each of the brackets also includes a hook portion projecting from the base part and adapted to be received in an opening formed in the bottom edge of the door for retaining the brackets connected to the door when door lifting forces are being applied thereto if one or more fasteners is loose or removed from the bracket.
Patent CA-2343904-C (CA)
Inventor: PIERLUIGI DALLA PACE
IPC: B23K101/16
Filed: 2001-04-10
Granted: 2007-01-02
Abstract: Process for the laser and/or plasma cutting of strips, particularly metal coils, and relative continuous cutting lines in which, upstream of the cutting line, there is a strip of metal in the form of a coil supported on a reel, positioned for unwinding, and in which the said strip is initially straightened and then, by means of a transport system, is sent downstream towards a support bed, and is locally processed by the movement of an overhead focusing head which is part of the laser or plasma cutting unit. While cutting, the said focusing head is mobile and moves exclusively along the axis which is transversal to the longitudinal forward travel axis of the said strip. The said strip is carried further downstream by an evacuation table, on which both the waste pieces and the finished pieces or details remain together, after which they are later separated.
Patent CA-2343947-C (CA)
Title: Through-drill string conveyed logging system
Inventor: RUNIA DOUWE JOHANNES
IPC: E21B47/00
Filed: 1999-09-20
Granted: 2008-01-15
Abstract: A system for drilling and logging of a wellbore formed in an earth formation is provided. The system comprises a log-ging tool string and a drill string having a longitudinal channel for circulation of drilling fluid, the drill string including a port providing fluid communication between the channel and the exterior of the drill string, the channel and the port being ar-ranged to allow the logging tool string to pass through the channel and from the channel through the port to a position exterior of the drill string. The system further comprises a re-movable closure element adapted to selectively close the port, wherein the logging tool string is provided with connecting means for selectively connecting the logging tool string to the closure element.
Patent CA-2347317-C (CA)
Inventor: TACHIBANA FUSAO
IPC: F02N11/00
Filed: 2001-05-10
Granted: 2009-02-17
Abstract: An engine starter includes a recoil device, and a recoil cover for accommodating the recoil device therein also covers a flywheel operatively rotated with the recoil device, ring gears integrally fixed to the flywheel, and pinions which are components of a starter device and engage with the ring gears when the starter device is operated. The recoil cover is provided with a drain mechanism, including a boss formed integrally with the recoil cover, a drain pipe projected on the boss, and a drain cap plugged to the drain pipe and made of rubber so that it is manually detachable therefrom without using a tool. Thus a liquid such as muddy water which has entered from the recoil cover can be removed simply by pulling out the drain cap.
Patent CA-2358457-C (CA)
Inventor: YU RUEY J
IPC: A61K8/49
Filed: 2000-01-07
Granted: 2010-03-23
Abstract: L'invention concerne des composés comprenant N-acétyle-aldosamines, des acides N-acétylaminés, et des composés de N-acétyle apparentés utiles pour atténuer ou améliorer divers états cosmétiques et divers troubles dermatologiques, notamment les modifications ou altérations de la peau, des ongles et des cheveux liées au vieillissement intrinsèque et/ou extrinsèque, de même que les modifications ou altérations causées par des facteurs extrinsèques. Les N-acétyle-aldosamines, les acides N-acétylaminés et une composition N-acétyle apparentés peuvent aussi comprendre un cosmétique, un agent pharmaceutique ou un autre agent topique permettant de renforcer ou de créer un effet de synergie.
Patent CA-2363789-C (CA)
Inventor: OMERAGIC DZEVAT
IPC: G01V3/28
Filed: 2001-11-27
Granted: 2004-05-04
Abstract: Methods and apparatus are disclosed for minimizing or eliminating an undesired axial electric current induced along a subsurface borehole in the process of subsurface measurements with transmitter and/or receiver antennas which are substantially time varying magnetic dipoles with their dipole moments aligned at an angle to the axis of the borehole. Some antennas are disposed within the borehole on instruments having a non-conductive support member. Methods include providing an alternate path for the current along the instrument body. Another method includes emitting a controlled current to counter the undesired current. Another method corrects for the effect of the current using a superposition technique. An embodiment of the instrument includes an antenna disposed between a pair of electrically coupled electrodes. The antenna is disposed on the instrument such that it comprises a tilted or transverse magnetic dipole.
Patent CA-2368795-C (CA)
Title: Vestibular stimulation system and method
Inventor: LATTNER STEFANIE
IPC: A61N1/36
Filed: 2000-05-04
Granted: 2010-09-14
Abstract: An apparatus and method in which the portions of the labyrinth associated with the labyrinthine sense and/or the nerves associated therewith are stimulated to perform at least one of the following functions: augment or control a patient's respiratory function, open the patient's airway, induce sleep, and/or counteract vertigo. In one embodiment, the vestibular stimulating system (30, 30') of the present invention includes 1) a stimulation element (32) that performs the actual stimulation of the tissue, 2) a sensor (34) to detect a physiological condition of the patient, and 3) a power/control unit (36) that receives the signals provided by the sensor and causes stimulation energy to be provided to the stimulation element at an appropriate timing, level, pattern, and/or frequency to achieve the desired function. However, the present invention also contemplates eliminating the sensor in favor of applying a predetermined pattern of stimulation to the patient.
Patent CA-2371960-C (CA)
Title: Presentation board digitizers
Inventor: SERBER RON
IPC: G06F3/0354
Filed: 2000-04-10
Granted: 2005-02-22
Abstract: A handheld device (200) includes a housing (202) having a cylindrical bore (204) therein and which terminates at a distal end (206) of the housing with a central orifice communicating therewith. The housing serves for receiving a portion of a body of a drawing implement with its drawing tip extending from the central orifice. The device (200) further includes an ultrasonic receive r or transmitter (220) mounted within the housing, remote from the drawing tip , yet in close proximity with the bore. This device serves for receiving or transmitting an intermittent ultrasound signal through the bore and the plurality of openings, thereby enabling triangulation of the drawing tip.</S DOAB>
Patent CA-2373522-C (CA)
Inventor: MAIER JAKOB JUN
IPC: A01J5/007
Filed: 2000-05-11
Granted: 2005-05-10
Abstract: An automatic milking machine for the determination of quality of milk during the milking process comprises a distributing valve mechanism with a milk inlet and several milk outlets, a measurement apparatus, and a driving element, whereby the measurement apparatus has a detection means for automatically detecting particles in the milk stream. The driving element drives the distributing valve mechanism, depending on the amount of particles determined to be in the milk, so that milk of diminished quality is selected out.
Patent CA-2375190-C (CA)
Inventor: IWANCZYK JAN S
IPC: A61B6/04
Filed: 2000-06-02
Granted: 2010-06-01
Abstract: At breast (10) is compressed between a gamma ray camera head (30) and a compression member or compression plate (20). The breast (10) is compressed between a gamma-ray camera head (31) and a cassette holder (34).