baber/WOPTO huggingface dataset:
Patent CA-2046316-C (CA)
Inventor: LARSSON LARS GUSTAV
IPC: H04L27/01
Filed: 1990-11-22
Granted: 2000-05-23
Abstract: Symbols (y(n-L)) in a symbol sequence transmitted via a fading channel are estimated (~(n-L)) in an equalizer having a channel estimating filter (CEST). An error signal (e(n)) influences an adaptation circuit (10) which controls adjustable coefficients (7) so as to form a channel estimate (c1(n), c2(n) c3(n)), which is adapted during the whole of the symbol sequence. The adaptation circuit (10) performs an adaptation algorithm, which is influenced by mean energy values (U(n)) obtained from the channel estimate in a mean-value-forming circuit (15). Subsequent to fading the adaptation algorithm is able to control the coefficients (7) so that one of the coefficients will erroneously dominate the channel estimate, with erroneous estimation of symbols (~(n-L)) as a result. This is counteracted by selecting the largest of the mean energy values U(n)), this largest value influencing the adaptation algorithm (10). When the signal strength of the transmitted symbols falls beneath a threshold value, the coefficient which dominated the channel estimate, for instance the first coefficient (c1(n)), is sustained to also dominate after fading and the remaining coefficients are set to zero:
Patent CA-2047253-C (CA)
Title: Method of locating a mobile station
Inventor: LO WING FAI
IPC: H04W64/00
Filed: 1991-07-17
Granted: 2000-02-01
Abstract: A method of providing an estimation of a mobile station's location in a cellular communication system having a plurality of base stations and mobile stations is disclosed. The mobile station's location is provided by measuring radio propagation parameters between the mobile station and each base station within propagation range of the mobile station. Then, a location probability density function (pdf) is found based on the measured radio propagation parameters. A point probability density function (pdf) is then constructed by combining each individual function which is obtained. The location of the mobile station is then estimated from the resulting point probability density function (pdf).
Patent CA-2049352-C (CA)
Inventor: FLADBY TRON-HALVARD
IPC: F01B11/00
Filed: 1990-03-30
Granted: 1999-07-27
Abstract: Un moteur linéaire hydraulique doté d'un piston (4) se trouvant dans un cylindre (5), est alimenté en fluide d'entraînement sous la commande d'un dispositif de vanne à tiroir (8), comportant un tiroir (9) se déplaçant entre ses positions terminales et retenu entre ces dernières au moyen du fluide d'entraînement. Une tige pilote (22) reliée audit piston (4), commande l'alimentation en fluide d'entraînement vers les côtés respectifs du tiroir (9). Ladite tige pilote (22) est reçue de manière coulissante dans une cavité (12) située dans le tiroir, et comporte des sections (23 à 25) de diamètre réduit, faisant office de vannes dans certaines positions.
Patent CA-2051129-C (CA)
Title: Variable-pitch propeller having collapsible blades
Inventor: MARINI FERNANDO
IPC: B63H3/12
Filed: 1991-09-11
Granted: 2002-05-07
Abstract: A propeller to be used in particular for sail boats comprises a hub (2) fitted to the end of a drive shaft (5) and carrying a bevel pinion (8) meshing with bevel pinions (9) provided at the ends of corresponding propeller blades (10) mounted in a rotatable manner about their own axes between two annular shell halves (11, 12) covering the hub (2); and an adjusting element (21) coupled through cylindrical toothings (19) to the inner shell half (12) and detachably fastened thereto, said adjusting element internally carrying a circular sector (24), to be engaged by a corresponding circular sector (23) projecting from the outer hub outline so as to determine the boundary orientation positions of the blades (10); the propeller pitch being adjustable by disengagement of said toothings (19) between the adjusting element (21) and shell half (12), rotation of said adjusting element through a given angle and further engagement between said toothings (19).
Patent CA-2056789-C (CA)
Title: A process for the manufacture of a fibrous preform formed of refractory fibers for producing a composite material article
Inventor: OLRY PIERRE
IPC: D02G3/18
Filed: 1991-12-02
Granted: 1999-01-05
Abstract: A fibrous preform is formed from a yarn composed of long discontinuous fibers made of a refractory material or its precursor. the discontinuous fibers are disposed parallel to one another without twist, and theintegrity of the yarn is achieved by a covering yarn made of a fugitive material. The fibrous preform is intended to be densified by a matrix material for the manufacture of a composite material article. The covering yarn is eliminated before the preform is densified by the matrix material.
Patent CA-2060182-C (CA)
Title: Particules magnetiques enrobees et suspensions de particules magnetiques stables
Inventor: LIBERTI PAUL A
IPC: A61K9/50
Filed: 1990-08-14
Granted: 2000-06-06
Abstract: Des suspensions stables de particules magnétiques enrobées, préférablement de particules bioactives pouvant être remises en suspension et particulièrement utiles en imagerie à résonnance magnétique, sont produites par rupture de ce qu'on pense être des agglomérats cristallins d'un matériau de départ voisin, à particules magnétiques, en présence d'un matériau d'enrobage tel que cet enrobage se produise au cours de la rupture. Les particules sont généralement enrobées en suspension produisant ainsi une suspension stable de particules subdivisées. En choisissant avec discernement le matériau d'enrobage, préférablement une protéine ou un autre polymère actif au niveau biochimique ou biologique comme un anticorps, on obtient un produit bioactif pouvant être remis en suspension (colloïdal).
Patent CA-2062415-C (CA)
Title: Molded optical package utilizing leadframe technology
Inventor: ACARLAR MUVAFFAK SABRI
IPC: H04B10/43
Filed: 1992-03-06
Granted: 1997-08-12
Abstract: An optical communication arrangement and method is disclosed which utilizes a combination of leadframe and package molding technology to reduce thecomplexity of the arrangement. In general, a leadframe is utilized for the placement and connection of the required electronic circuitry. An optical device is also coupled to the leadframe, where a subassembly may be used to house the optical device. The electronics and optics are then simultaneously encapsulated in a molded outer package to form the final arrangement. In one embodiment, an optical subassemblyincorporating a fiber optic connector receptacle may be utilized, wherein the molded outer package is configured such that the connector receptacle remains exposed. Alternatively, the molded outer package may be configured to include the connector receptacle.
Patent CA-2065205-C (CA)
Inventor: GREEN DAVID T
IPC: A61B17/064
Filed: 1992-04-06
Granted: 2002-12-03
Abstract: A bioabsorbable surgical fastener comprising a fastener member and an interlocking retainer member. The surgical fastener has a total mass of less than 4 mg/transverse mm, thereby reducing the amount of foreign matter present at the wound site and facilitating faster resorption, while effecting hemostasis. The retainer member preferably has longitudinally extending slots on the lateral sides of the retainer for allowing transverse expansion of the columnar members into which the prongs of the fastener member are locked. Fins on both the lateral and transverse sides of the prongs provide extra strength, and stability during implantation. Stopping surfaces prevent the fastener's barbed tip from exiting the opposite side of the retainer.
Patent CA-2068899-C (CA)
Title: Whispering mode micro-resonator
Inventor: MCCALL SAMUEL LEVERTE
IPC: H01L33/00
Filed: 1992-05-19
Granted: 1997-06-17
Abstract: Device for electromagnetic emission depends on total internal reflection- on whispering gallery mode cavitation about the periphery of a disc-shaped element of sub-wavelength thickness. Operating above lasing threshold, the design is alternative to that of the Surface Emitting Laser for integration in integrated circuitry - either all-optic or electro-optic. Operating below threshold, it may serve as a Light Emitting Diode.
Patent CA-2069080-C (CA)
Inventor: ROY JEAN-LOUIS
IPC: A47G29/122
Filed: 1992-05-20
Granted: 1994-05-10
Abstract: Dans un système à boîte aux lettres conventionnel le signal doit être activé manuellement par le facteur. Dans la présente invention, la boîte est munie d'un système mécanique placé à l'avant de la boîte qui a pour objet, lorsque le facteur referme le couvercle de la boîte après y avoir déposé du courrier sur la tablette mobile, d'actionner le signal placé à l'extérieur qui remonte automatiquement à la position verticale lorsque la pesée s'appuie sur le courrier. Le système comprend 6 pièces installées à l'intérieur qui permettent d'actionner la pièce installée à l'extérieur en la faisant remonter mécaniquement à la position verticale.
Patent CA-2073139-C (CA)
Title: Method and apparatus for treating fluent materials
Inventor: HIDALGO OSCAR MARIO GUAGNELLI
IPC: B01J19/10
Filed: 1992-07-07
Granted: 2004-05-25
Abstract: A method for treating a continuous flow of fluent materials employs an apparatus (20, 200) comprising a generally cylindrical housing (23, 202) having an inlet (22, 204), and outlet (24, 206) and a plurality of treatment stages for successively imparting pulses of energy to the fluent materials in order to disassociate the materials on a molecular level and achieve a homogeneous, highly dispersed mixture. Each of the treatment stages includes a pair of baffle plates (50, 52, 248, 250) which are relatively rotatable and oppose the flow of fluent materials through the housing alternating zones of high pressure and cavitation. Each pair of the baffle plates include matched sets of openings (54, 56, 252, 254) therein which are periodically brought into alignment with each other as one plate rotates relatively to the other, thereby allowing bursts of the fluent material to flow therethrough, from an upstream area (32, 212) of relatively high pressure into a cavitation area (84, 258). One of the battle plates (52, 60, 248, 264) in each pair thereof is mounted on a shaft (68, 224) rotated by a motor (76) located external of the housing.
Patent CA-2074893-C (CA)
Title: Medium or high voltage end contact circuit breaker
Inventor: DUFOURNET DENIS
IPC: H01H33/915
Filed: 1992-07-30
Granted: 1996-05-21
Abstract: The present invention relates to a medium- or high-tension circuit breaking having abutting arcing contacts and comprising a casing filled with a gas having good dielectric properties and containing a stationary first abutting contact and moving equipment including a first tube capable of being displaced by a drive rod and a semi-moving tubular second abutting contact. The annular end of the first tube carries a ring of contact arms that slide on the first abutting contact and that carry respective arcing contact blocks at their ends and respective permanent contact swellings proximate to the arcing contact blocks. A circuit breaker is thus provided which withstands the effects of arcing particularly well.
Patent CA-2078083-C (CA)
Title: Self mailer with return envelope formed from single cut sheet
Inventor: YOUNGER ZO
IPC: B42D5/02
Filed: 1992-09-11
Granted: 2004-02-10
Abstract: A single sheet business form construction printable in an impact or a non-impact printer includes a base sheet of face stock having a front, a back, a top, a bottom, and first and second sides. The base sheet is adapted to receive a first line of weakening in a first desired location extending adjacent and parallel to the first side to define a first tear strip on the base sheet between the first desired location and the first side. The base sheet is adapted to receive a second line of weakening in a second desired location extending adjacent and parallel to the second side to define a second tear strip on the base sheet between the second desired location and the second side. A first transverse line of weakening is intermediate and parallel the top and the bottom and extends between the first and second desired locations. A lateral strip of adhesive is parallel to the first transverse line of weakening between the transverse line of weakening and the bottom. When folded, a mailer with an internal return envelope results.
Patent CA-2078731-C (CA)
Title: Positional deviation measuring device and method thereof
Inventor: NOSE NORIYUKI
IPC: G03F9/00
Filed: 1992-09-21
Granted: 2000-04-18
Abstract: A device and method for measuring the positional deviation between a plurality of diffraction gratings formed on the same object include an illumination optical system for illuminating the plurality of diffraction gratings with a light beam, the illumination by the optical system generating a plurality of diffracted light beams from the plurality of diffraction gratings, an interference optical system for forming at least one interference light beam from the plurality of diffracted light beams, a detector for detecting the at least one interference light beam, the result of the detection serving as the basis for measuring the positional deviation between the plurality of diffraction gratings, and a measuring portion for measuring the relative positional relation between the illumination optical system and the plurality of diffraction gratings.
Patent CA-2079980-C (CA)
Title: Modified polyureas and a process for their production
Inventor: MUENZMAY THOMAS
IPC: C08G18/44
Filed: 1992-10-06
Granted: 2003-02-11
Abstract: The present invention relates to polyureas which contain anionic N-cyanaminocarbonyl urea groups corresponding to formula (I) (see formula I) incorporated in the polymer chain and, optionally, terminal anionic cyanourea groups corresponding to formula (II) (see formula) wherein the ratio of incorporated groups (I) to terminal groups (II) is more than 1:1, preferably more than 2:1.        The present invention also relates to a process for the preparation of these polyureas.
Patent CA-2080504-C (CA)
Inventor: ADERKA DAN
IPC: A61K38/17
Filed: 1992-10-14
Granted: 2006-10-03
Abstract: IL-6 is useful in the treatment of chronic lymphocytic leukemia (CLL) and B-cell lymphomas.
Patent CA-2085217-C (CA)
Title: Rotating biological aquarium filter system
Inventor: FUERST CHARLES O
IPC: C02F3/08
Filed: 1991-06-10
Granted: 2004-06-01
Abstract: An aquarium filter system having a rotatably mounted filter body (32). The filter body is structured such that when mounted with a portion of the filter body submerged in moving water, rotational movement is imparted to the filter body by the moving water. As a result of the rotational movement at least a portion of the filter body is alternately exposed to the water and the atmosphere. This fosters the growth of aerobic bacteria on the surface of the filter body. The aerobic bacteria reduces the level of toxins within the aquarium water.
Patent CA-2087647-C (CA)
Title: Process for the recovery of polymers dissolved in aqueous alkaline or acid media
Inventor: PAPE RICHARD F
IPC: C08J3/14
Filed: 1993-01-20
Granted: 2005-07-19
Abstract: The invention relates to a process for the recovery of polymers dissolved in an aqueous alkaline or acid medium by precipitating the polymers with acid or alkaline precipitants, the precipitation being initiated in a strong aqueous flow and the precipitated polymers separated from the aqueous medium.
Patent CA-2090466-C (CA)
Title: Power amplifier
Inventor: JENSEN OLE HEDEVANG
IPC: H03G3/20
Filed: 1991-08-21
Granted: 2001-01-23
Abstract: A pulsed power amplifier (100) for amplifying radio frequency signals. The pulsed power amplifier comprises control means (124, 126, 102) for generating control signals to the amplifier output power so as to provide an output pulse having rising and falling transitional phases, and means (112, 114, 117, 118, 122, 132, 134, 137, 138, 142) for generating a subsidiary pulse signal to be applied to the control means in order to adjust a transitional phase of the output power pulse. The generation of the subsidiary pulse may depend on a measured parameter of a previous output power pulse, such as the time taken for a preceding output power pulse to signal a predetermined output power level. Alternatively, the generation of the subsidiary pulse may depend on a parameter of the present output power pulse. in both cases the generating means can control the magnitude of the subsidiary pulse in response to the parameter.
Patent CA-2092394-C (CA)
Title: Article for liquid containment and recovery
Inventor: BERRIGAN MICHAEL R
IPC: B01D15/00
Filed: 1993-03-24
Granted: 2004-12-28
Abstract: The present invention provides a liquid sorbent article comprising at least two contiguous layer's formed from a single sheet, said layers being joined at a fold in said sheet and being intermittently releasably bonded together.
Patent CA-2093518-C (CA)
Inventor: BOWSER JOHN
IPC: B01D39/08
Filed: 1991-11-19
Granted: 1996-07-02
Abstract: A gas permeable material comprising a material having continuous pores through it, in which the pore interiors are coated with an amorphous copolymer of tetrafluoroethylene and perfluoro-2,2-dimethyl-1,3-dioxole.
Patent CA-2095093-C (CA)
Inventor: LEE SIMPSON
IPC: E05F5/00
Filed: 1993-06-16
Granted: 1996-06-11
Abstract: A door hinge includes a hydraulic retarding device for cushioning the closing action of a door. The hydraulic retarding device has a cylinder body which confines a fluid operating space to receive hydraulic fluid therein. The fluid operating space includes a pair of longitudinally extending cylindrical spaces and an intermediate longitudinal passage provided between and communicating the cylindrical spaces. A vane unit-is provided in each of the cylindrical spaces and has a blade which defines a longitudinal clearance with an inner surface of the cylinder body. A baffle extends longitudinally into each of the cylindrical spaces and is disposed between the passage and a respective one of the vane units. The baffles are substantially arc-shaped in cross-section and face away from each other.          A gate valve is provided in the passage between the baffles. The vane units are operably associated with the door movement so as to open the gate valve to permit the hydraulic fluid to flow through the passage during a door opening action and so as to close the gate valve to prevent the hydraulic fluid from flowing through the passage and to permit the hydraulic fluid to flow only through the clearance between the vane units and the inner surface of the cylinder body  in order to retard the movement of the vane units during a door closing action.
Patent CA-2095636-C (CA)
Title: N-halochitosans, their preparation and uses
Inventor: HEINSOHN GEORGE EDWARD
IPC: C02F1/52
Filed: 1991-11-13
Granted: 1996-12-10
Abstract: A process for manufacture of novel polymeric halo derivatives or chitosan (e.g., terpolymer comprising 1-35 % 2-deoxy-2-acetamidoglucose units, 1-90 % 2-deoxy-2-aminoglucose units, and 8-95 % 2-deoxy-2-haloaminoglucose units) involving the reaction of chitosan or a chitosan salt with a halogenating agent (e.g., sodium hypochlorite). The N-halochitosans are effective as flocculating aids.
Patent CA-2097808-C (CA)
Title: Cellular telephone with keypad controller
Inventor: ASELTINE PHILIP F
IPC: H04M1/724
Filed: 1992-09-28
Granted: 1998-06-23
Abstract: A unique cellular telephone (500) includes audio circuit (502), microcomputer (508), indicators (506 and 507), cellular telephone transceiver, (519), and keypad controller (504) for controlling the operating modes thereof and automatically placing and receiving cellular telephone calls dialed in any pattern. The keypad includes numerical keys (0-9, # and *) and function keys (MEM and END/CLEAR) for entering digits of telephone number and key sequences for selecting operating modes. Power is applied to the cellular telephone transceiver (519) in response to concurrent activation of at least two keys. Each telephone number digit is detected and accumulated by microcomputer (508) and. after a pause of four seconds, the accumulated digits are sent via a data bus (511) to cellular telephone transceiver (519) for placing a telephone call. The call is subsequently terminated when the END key is activated or an END command is received by the cellular telephone transceiver (519). Thereafter, power to the cellular telephone transceiver (519) may be turned off in response to activation of the MEM-END key sequence.
Patent CA-2102175-C (CA)
Inventor: STEFFENS TODD R
IPC: B04C5/12
Filed: 1993-11-01
Granted: 2002-08-13
Abstract: In its simplest sense, the present invention provides a uniquely shaped conduit between the primary and secondary cyclones or, in the alternative, between the riser and the primary cyclone, which creates an increase in the auction of the dilute phase vapor beyond that normally available in the reactor vessel, thereby reducing the dilute phase residence time in the vessel, reducing post-riser thermal cracking, hydrogen transfer reactions, and coking tendency of mixture in dilute phase.
Patent CA-2104531-C (CA)
Title: Antimicrobial agent
Inventor: SATO MASARU
IPC: A61K31/44
Filed: 1993-08-20
Granted: 1999-01-05
Abstract: An ulcer and/or gastritis are prevented, improved or treated by administering a pharmacologically effective amount of the compound having the below shown formula (I) or (II) or. a pharmacologically acceptable salt thereof to a mammal suffering from such a disease.     (see fig. I) (see fig. II)
Patent CA-2104899-C (CA)
Title: Antibodies to plasmodium falciparum
Inventor: MARET S MELISSA
IPC: A61P31/04
Filed: 1993-08-26
Granted: 2000-10-17
Abstract: Antibodies which recognize and bind to histidine rich protein II of Plasmodium falciparum. These antibodies exhibit improved specificity and affinity for the antigen which provides enhanced sensitivity in immunoassays. Peptides useful for generation of the antibodies are also provided.
Patent CA-2110497-C (CA)
Title: Use of bacterial lipases for producing drugs for maldigestion therapy
Inventor: BRAATZ REINHARD
IPC: C12N9/20
Filed: 1992-06-23
Granted: 2005-04-19
Abstract: Described is the use of a bacterial lipase from Chromobacter viscosum, Pseudomonas cepacia IAM 1057, Pseudomonas fluorescens and Pseudomonas DSM 6535 which shows a positive immunological cross-section to antibodies of the lipase from Pseudomonas spec. DSM 6483. The lipase from Pseudomonas spec. DSM 6535 is used to produce drugs for use in therapy of maldigestion. The lipase is formed from the species Psedomonas spec. DSM 6483 and/or Pseudonomas cepacia IAM 1057.
Patent CA-2110602-C (CA)
Inventor: TULTS JURI
IPC: H04N7/087
Filed: 1992-06-15
Granted: 2001-08-28
Abstract: In a system for identifying specific horizontal lines of video that are included in a video signal, a horizontal tine counter (100) is cleared to indicate the beginning of a vertical interval by a reset signal (VERDEL) derived from a vertical sync signal (VER). The line counter is clocked by a signal (HOR) at the horizontal sync rate that is derived from a harmonic (N-FH) of the horizontal sync signal. The relative phase shift between the reset and clock signals for the horizontal line counter is mea-sured (105, 120). The measured phase shift is used as an input to a variable phase shifter (110) to adjust the phasing between the horizontal line counter control signals and the original sync signals. The phase adjustment permits significantly decrea-sing the sensitivity of the horizontal line counter to jitter of vertical sync.
Patent CA-2115065-C (CA)
Inventor: SAKON KIYOYUKI
IPC: A61K9/48
Filed: 1993-06-11
Granted: 2000-10-03
Abstract: An ultrafine particle powder for inhalation to be delivered mainly to a lower airway, containing specific cellulose lower alkyl ethers and a medicament, at least 80% of the powder having a particle size in the range of 0.5 to 10 µm.