baber/WOPTO huggingface dataset:
Patent CA-2201564-A1 (CA)
Inventor: BURBIDGE DOUGLAS S
IPC: H04B10/291
Filed: 1997-04-02
Abstract: An optical repeater is described which integrates an erbium doped optical fiber amplifier (EDFA) with a dispersion equalizer (DE) based on fiber gratings. The dispersion equalizer is based on parallel connection of two fiber gratings for single carrier wavelength operation, and on parallel connection of a cascade of two fibre grating branches, each carrying a plurality grating elements chirped for different wavelengths, for WDM operation at a plurality of wavelengths.      The use of two gratings sections for each wavelength improves the optical bandwidth of the equalizer compared with single grating designs, doubling the effective bandwidth. Further, the grating DE is disposed between two fiber amplifier sections which share a single pump laser. Thus, this arrangement provides dispersion compensation and loss compensation in an optical repeater of lower cost, and smaller size, compared to a system of similar performance configured using discrete components.
Patent CA-2204024-A1 (CA)
Title: Atm transmission method with mute compression control function, and system, transmitter and receiver using the same
Inventor: TSUBOYA HISAKAZU
IPC: H04L47/2416
Filed: 1996-08-30
Abstract: An ATM transmission system which transmits voice data in an asynchronous transfer mode (ATM), in which a silent section of a call is detected and the silent section is not physically sent as an ATM cell through a transmission line, realizing compression of the silent section on the transmission line. The sending side detects the silent section, generates voice/silence information, and generates a silence starting cell and a silence ending cell. The receiving side generates silent sections at regular time intervals upon receiving the silence starting cell and returns to its normal voice cell receiving state upon receiving the silence ending cell. Since the silent sections are not transmitted, the number of occupied bands is reduced on the transmission line and the efficiency of the transmission line can be improved.
Patent CA-2204952-A1 (CA)
Title: Articulation transmission mechanism for surgical instruments
Inventor: HUITEMA THOMAS
IPC: A61B17/00
Filed: 1997-05-09
Abstract: An articulating surgical instrument which has an articulation transmission assembly for remotely articulating an end effector of the instrument is disclosed. The articulation transmission assembly includes a detent housing mounted on the instrument with a plurality of detent teeth. A compressible deck with a plurality of ratchet deck teeth is matingly coupled with the teeth of the detent housing when the assembly is in a first locked position. An actuator is fitted on the detent housing for applying a rotational force on the deck. A drive member is in communication with the deck for translating rotational movement of the deck into axial movement of an elongated transmission member which is attached to the drive member. When a rotational force is applied to the actuator, the deck compresses to decouple the teeth of the deck from the teeth in the detent housing. The decoupling of the teeth reduces the rotational force necessary to rotate the deck and consequently the drive member which moves the elongated transmission member axially to effect articulation. Consequently, the ratcheting rotation of the deck from the first locked position to a second locked position, and therefore the articulation of the end effector from a first position to a second position angled from the first position, is significantly facilitated.
Patent CA-2205851-A1 (CA)
Title: Signal processing
Inventor: MCEWEN ROBERT KENNEDY
IPC: H04N5/365
Filed: 1995-11-24
Abstract: A signal processor (10) receives both open and closed field values for elements of a detector (11) and corrects for non-uniformities in offset response between the elements prior to converting the signal to a digital signal via an A to D converter (15). The corrected signal is then digitally processed to compensate for linear and higher order non-uniformities in the response of the element. The invention enables the A to D converter to have relatively low resolution for a given output radiation.
Patent CA-2205935-A1 (CA)
Title: Boite de metal, ou de plastique encastre
Inventor: GALLANT YVAN
IPC: H02G3/14
Filed: 1997-05-28
Abstract: Une boîte encastrée fabriquée de métal où de plastique ayant son propre système de fixation adapté â la fonction que je lui aurai destinée, principalement utilisée dans le domaine de la construction pouvant servir de complément où de composante à toute unité (appareil) électrique où non-électrique pouvant être encastré où déjâ encastré. Cette boîte à la particularité unique d'avoir un rebord "genre coin de fer" intégré, ce dit rebord est parfaitement adapté à nos murs ayant une surface de placoplâtre et de fait sa configuration est telle qu'il peut être fixé directement en permanence pour être par la suite recouvert principalement de composé à joint. De par ces faits j'ai crée un tout nouveau système d'encastrement lequel surclasse ce qui a été utilisé jusqu'à présent.
Patent CA-2208012-A1 (CA)
Title: Water driven hammer device
Inventor: EKWALL BERNDT
IPC: B25D17/06
Filed: 1995-12-07
Abstract: Water driven hammer device comprising a machine housing (1) and a hammer piston movable to-and-fro in the machine housing. The hammer piston is guided in the machine housing in two guides (4, 5) arranged at a distance from each other. The guides are made with two parts with different inner diameters. The parts (6) with the largest inner diameters on the guides are turned towards each othe. The room (7) between the guides is pressurized and the chambers on the other side of the guides are kept at a lower pressure so that a flow is obtained through the guides for centering the hammer piston in the machine housing so that the hammer piston does not seize.
Patent CA-2208844-A1 (CA)
Title: Acetylenes disubstituted with a 5 or 8 substituted tetrahydronaphthyl or dihydronaphthyl group and with an aryl or heteroaryl groups having retinoid-like biological activity
Inventor: BEARD RICHARD L
IPC: C07C69/732
Filed: 1995-12-14
Abstract: Acetylenes substituted with a phenyl or heteroaryl group and with a 5,6,7,8tetrahydronaphthyl or 7,8-dihydronaphthyl group have retinoid-like biological activity. The 5,6,7,8-tetrahydronaphthyl or 7,8-dihydronaphthyl group is substituted in the 5 position.
Patent CA-2209911-A1 (CA)
Title: Procede et appareil de formation d'une ame en nid d'abeilles pour panneaux en nid d'abeilles
Inventor: KROEZE HENDRIK JOZEF
IPC: B31D3/02
Filed: 1996-01-08
Abstract: Procédé de formation d'une âme en nid d'abeilles utilisable, par exemple, dans un panneau en nid d'abeilles, dans lequel des bandes ou plaques de matériau déformable et notamment de matériau cellulosique, par exemple du papier ou du carton, sont pourvues de bandes de colle continues ou non qui, pour chaque paire de plaques à superposer, ces plaques étant éventuellement obtenues à partir de bandes, sont disposées de manière décalée latéralement et régulièrement les unes par rapport aux autres, sur les faces des plaques ayant la même orientation, et lesdites plaques sont serrées l'une contre l'autre afin de leur permettre de se coller localement l'une à l'autre. Les bandes de colle sont appliquées à l'aide d'embouts distributeurs de colle.
Patent CA-2210092-A1 (CA)
Inventor: ROTHMAN ULF
IPC: B60R25/00
Filed: 1996-02-06
Abstract: A device for operating a valve (1), preferably for a tyre valve of a car, where a valve actuating pin (3) is biased to a valve-closing extended position and is to be depressed for opening the valve, has a disc-shaped operating member (6) arranged in a housing (4), which is mounted on the valve. The operating member is provided with a central recess (6') with gradually sloping sides in its surface facing the pin. An operating rod (7) is axially movably arranged in the housing substantially in line with the pin, the rod engaging the recess with one of its ends and the pin with the other.
Patent CA-2211052-A1 (CA)
Title: Liquid petroleum gas cannister connector
Inventor: VAN DEURSEN GARY E
IPC: F24C3/12
Filed: 1997-08-07
Abstract: An LPG canister connector is for providing a flow path from a canister, containing liquid fuel and having a cap with an outlet, to a combustion appliance. The connector includes a valve assembly adapted to be connected to the cap, and a conduit mechanism connected to the valve assembly and adapted to be connected to the combustion appliance. At least one of the valve assembly and the conduit means including means for promoting vaporization of the liquid fuel by facilitating heat transfer.
Patent CA-2211760-A1 (CA)
Inventor: OZAWA SHOICHI
IPC: G02F1/01
Filed: 1997-07-30
Abstract: The invention relates to an optical integrated circuit for bidirectional communications which is able to achieve a downsizing and high integration with the production cost thereof decreased.  An optical waveguide circuit 20 is formed on a substrate 25 and a photo diode (PD) 8 is connected to the outgoing end 29 side thereof. The optical waveguide circuit 20 has a circuit of an optical wavelength division multiplexer which causes communication signal light (~É1) inputted from a bidirectional light input/output port 33 to be transmitted through a communication light selective transmission filter 24 and to be outputted from a communication light output port 34 and causes non-communication light (~É2) to be reflected by the communication light selective transmission filter 24 and to outgo through a non-communication light output port 35.  A piezoelectric element 15 is provided on the upper part at the outgoing side 29 of the communication light output port 34.  When the communication signal light passing through the optical waveguide circuit 20 is inputted into the PD 8, the PD 8 is actuated in the reception mode to receive communication signal light and is not driven in the transmission mode to reflect communication signal light toward the optical waveguide circuit 20 side by a high reflection coating film 30.  The reflection light is given polarization plane modulation by the piezoelectric element 15, and the polarization plane modulated light is transmitted from the bidirectional light input/output port 33.
Patent CA-2212041-A1 (CA)
Title: Pharmaceutical composition for parenteral application containing an indole-carboxylic acid
Inventor: LODI ANDREA
IPC: A61K47/26
Filed: 1996-02-08
Abstract: A pharmaceutical composition in a form suitable for parenteral administration comprising a solution of the glycine antagonist (E)-3-[2-(phenylcarbamoyl)ethenyl]-4,6-dichloroindole-2-carboxylic acid or a physiologically acceptable salt thereof, in an isotonic sugar solution containing a water miscible organic solvent for the compound, said formulation having a pH within the range of 7 to 9.
Patent CA-2212187-A1 (CA)
Title: Antiperspirant roll-on comprising peg-7-glyceryl cocoate, an emollient and cyclomethicone in a dispersed oil phase
Inventor: BENFATTO ANTHONY
IPC: A61K8/58
Filed: 1995-11-13
Abstract: The present invention provides for roll-on antiperspirant compositions and more particularly concerns antiperspirant compositions which are clear and, when applied to the human skin, do not leave a visible white residue after drying. The present invention is also particularly concerned with the preparation of clear antiperspirant roll-on compositions which are stable under varying temperature conditions and also provide a suitable cosmetically acceptable feel or sensation when applied to the human skin.
Patent CA-2214273-A1 (CA)
Inventor: DANIELSON ARVIN D
IPC: H04N5/335
Filed: 1997-08-27
Abstract: An image capture system having an image capture module and a terminal unit captures both photo images and coded images. An alterable optical path of the system operates in a first configuration when capturing coded images and in a second configuration when capturing photo images. Captured images are presented on a display as they are captured. A user of the system may parse through captured images to select one or more of the captured images for permanent storage and/or transmission to a remote location. The system operates to identify coded targets within captured images, to prompt the user to select one or more of the identified coded targets and to decode the selected coded targets. The image capture system may direct a user to reposition the system so that a decodable coded image will be captured. The image capture system communicates over wireless and wired networks with remote computer systems, personnel, and mobile units.
Patent CA-2216528-A1 (CA)
Inventor: ECKSTEIN WILFRIED
IPC: C04B35/03
Filed: 1996-05-04
Abstract: The invention concerns a use for a water-containing fire-resistant ceramic cast material based on a hydration-sensitive metal oxide such as MgO and containing carbon, a dispersing agent and a reactive silicic acid for forming a monolithic lining for a metallurgical smelting vessel.
Patent CA-2217073-A1 (CA)
Title: Multimode digital modem
Inventor: LU XIAOLIN
IPC: H04M11/06
Filed: 1997-10-01
Abstract: A modem that operates selectively in the voice-band frequency band and at higher frequency bands is provided. This modem supports multiple line codes, like DMT and CAP.      The modem uses a Digital Signal Processor (DSP), so that different existing ADSL line codes, such as Discrete MultiTone (DMT) and Carrierless AM/PM (CAP), can be implemented on the same hardware platform. The modem negotiates in real-time, for a desired line transmission rate to accommodate line condition and service-cost requirement.      The line code and rate negotiation process may be implemented at the beginning of each communication session through the exchange of tones between the modems. A four-step MDSL modem initialization process is provided for line code and rate compatibility.      A new synchronization startup procedure for CAP based MDSL modems is provided. The handshake protocol and receiver algorithm allow reliable modem synchronization over severely amplitude distorted channels such as standard telephone twisted-pair wire. The algorithm makes use of a short length sequence to train a synchronizing equalizer at the receiver. After training to this sequence, a matched filter or correlator is used to detect the inverted sync sequence. The detection of the inverted sequence signals the start of the normal reference training of the CAP demodulation equalizers.      The MDSL line connection management process provides a simple, efficient, and flexible interface to manage the line connection between MDSL-C (MDSL in Central Office site) and MDSL-R (MDSL in resident site) in the telecommunication Wide Area Networking environment. An internal state machine in an MDSL modem records and monitors the line status and notifies the state change to the other MDSL and also the host processor. The protocol used for exchanging line connection management messages is a simplified Link Control Protocol (LCP) for MDSL.
Patent CA-2217937-A1 (CA)
Title: Protec-ski
Inventor: GUAY DENYS
IPC: A63C11/00
Filed: 1997-11-26
Abstract: Un dispositif de conversion permettant de modifier un cadenas de vélo de type U en cadenas pour skis et bâtons. Cet adaptateur est constitué d'une seule pièce moulée qui s'insère à l'intérieur du cadenas en U.
Patent CA-2218380-A1 (CA)
Title: Novel hydroxamic and carbocylic acids as metalloprotease inhibitors
Inventor: CHERNEY ROBERT JOSEPH
IPC: A61K31/4015
Filed: 1996-04-17
Abstract: The present invention provides hydroxamic acids and carbocyclic acids and derivatives thereof and to pharmaceutical compositions and methods of use of these compounds for the inhibition of matrix metalloproteinases, such as stromelysin, and inhibit the production of tumor necrosis factor alpha, and for the treatment of arthritis and other inflammatory diseases. These compounds are represented by formula (I), wherein: A is -C(R1) (R1a)CONHOH or -CH(R11)C(R9)(R9a)CO2H; Q is CONHR13; R2 is selected from: C1-C8 alkyl substituted with O-2R17b; -O-(C1-C8 alkyl)-R20; -S-(C1-C8 alkyl)-R20; -CH2O-(C1-C8 alkyl)-R20; -CH2S-(C1-C8 alkyl)-R20; R3 is selected from hydrogen, or C1-C6 alkyl substituted with 0-3 R4; R14 is selected from hydrogen, methyl or ethyl.
Patent CA-2221111-A1 (CA)
Title: Detection de toxicite
Inventor: PICKIN STEPHEN ROY
IPC: C12Q1/02
Filed: 1996-06-27
Abstract: L'invention se rapporte à un procédé et à un détecteur permettant de tester un fluide pour détecter la présence de substances qui sont toxiques par rapport à des bactéries sélectionnées. Les bactéries sont immobilisées par encapsulation dans un milieu d'alcool polyvinylique, placé dans le détecteur et exposé au fluide. Les effets du fluide sur une ou plusieurs actions des bactéries sont ensuite évalués, et les informations obtenues sont utilisées pour déterminer la présence ou l'absence de substances toxiques dans le fluide. Divers types de bactéries peuvent être utilisés, tels que des bactéries nitrifiantes, dénitrifiantes et des bactéries dégradant le carbone. L'encapsulation permet de capturer rapidement un nombre élevé de bactéries spécifiques et de les conserver dans le milieu, ce qui donne des détecteurs à réaction standard, efficaces et ayant de bons temps de réponse. L'alcool polyvinylique utilisé comme milieu a pour avantage d'être non toxique pour un éventail de bactéries, d'être résistant à la désagrégation et d'être largement disponible.
Patent CA-2221557-A1 (CA)
Inventor: PATEL BHANUBHAI H
IPC: E21B34/14
Filed: 1997-11-19
Abstract: Assemblies and methods are provided for selectively opening and closing a side port in a flow conductor for a well. In general, the sliding side door assembly includes a housing and a door subassembly. The housing has a generally tubular shape defining a fluid conducting interior and central axis. A side port is formed in the housing, and a ball seat is positioned in the housing adjacent to side port. The door subassembly is operatively engaged with the housing adjacent the side port and includes a translating sleeve positioned within the housing and a ball sealing member adapted to engage the ball seat of the housing. A ball port is formed through the ball sealing member. A cooperatively engaged helical track and follower member are provided for translating a driving movement along the central axis through the translating sleeve to a rotational movement of the ball sealing member about the central axis. Driving movements acting on the door subassembly can be provided by a standard shifting tool. Thus, a first driving movement acting on the door subassembly in a first axial direction along the central axis causes the translating sleeve to rotate the ball sealing member such that the ball port moves into overlapping alignment with the side port, thereby opening the side port. Similarly, a second driving movement acting on the door subassembly in a second axial direction along the central axis causes the translating sleeve to rotate the ball sealing member such that the ball port moves out of overlapping alignment with the side port, thereby closing the side port.
Patent CA-2222613-A1 (CA)
Title: A device for delivering a preselected molecule into systemic circulation
Inventor: HUMES H DAVID
IPC: A61K38/28
Filed: 1996-06-04
Abstract: Disclosed is an implantable device for delivering a pre-selected molecule, for example, a hormone, into a mammal's systemic circulation. The device comprises a blood permeable element that can be anchored to an inner wall of an intact blood vessel. The device also comrpises a capsule that is held in place within the blood vessel by the anchored blood permeable element. The capsule encloses viable cells which produce and secrete the pre-selected molecule into blood passing the capsule. The invention also provides a minimally invasive method for percutaneously introducing into a pre-selected blood vessel the device of the invention.
Patent CA-2223010-A1 (CA)
Title: A highly sensitive immunocytochemical method for diagnosis of malignant effusions
Inventor: BURSTEIN DAVID E
IPC: G01N33/574
Filed: 1996-06-07
Abstract: Disclosed is a method of detecting malignancy in a body cavity effusion. Also disclosed is a method of distinguishing a benign hyperplastic lymph node from a lymph node involved by a low grade follicular lymphoma. Also disclosed is a method of distinguishing a benign tumor from a malignant tumor which overexpresses GLUT-1.
Patent CA-2223661-A1 (CA)
Inventor: DUCK GARY S
IPC: G02B3/00
Filed: 1997-12-04
Abstract: An optical device is provided having an input and an output terminal spaced equidistant from an optical axis of a graded index lens. An at least partially reflective surface is disposed spaced but adjacent from another end face of the graded index lens. The optical path length from the input or output terminal to a first end face of the lens is equal to the optical path length from the other end face of the lens to the at least partially reflective surface. The graded index lens has a length that collimates light launched from the input terminal to the at least partially reflective surface. Moving the input an output terminals toward or away from one another changes the angle at which light exits the other end face of the graded index lens, and thus changes the angle at which light is incident upon the at least partially reflecting surface. Conveniently, if the at least partially reflecting surface is a WDM interference filter, tunability of the filter is achieved by moving the input an output terminals toward or away from one another.
Patent CA-2223923-A1 (CA)
Inventor: MCCLARRINON MOLLY
IPC: A61K47/48
Filed: 1996-06-07
Abstract: La présente invention concerne des compositions et des procédés pharmaceutiques permettant un apport ciblé in vivo de gènes fonctionnels dans des cellules et des tissus. En l'occurrence, l'invention concerne des complexes ADN/lipide, des procédés de production de tels complexes, ainsi que des procédés d'utilisation de ces complexes pour faciliter l'apport et l'introduction ciblés de produits d'assemblage d'expression recombinés in vivo dans des cellules et tissus, et notamment l'apport de tels produits d'assemblage d'expression recombinés par injection intraveineuse, intrapéritonéale ou directe. Le véhicule d'apport du produit d'assemblage recombiné codant le gène d'intérêt se compose d'un mélange d'un lipide d'imidazolinium cationique de formule (I), dans laquelle R et R¿1? représentent un groupe hydrocarbyle aliphatique C¿11-29?, avec des lipides neutres (par exemple, DOPE, cholestérol).
Patent CA-2225256-A1 (CA)
Title: Buffered optical fiber
Inventor: RUTTERMAN DANIEL J
IPC: G02B6/44
Filed: 1997-12-19
Abstract: A buffered optical fiber includes a coated optical fiber loosely contained within a space delimited by the inner surface of a plastic tube. The outer surface of the coated optical fiber is formed of non-stick material such as TEFLON. No filler material is inserted between the coated optical fiber and the inner surface of the plastic tube. The plastic tube may have an inner diameter of 400 µm and an outer diameter of 900 µm. The buffered optical fiber is suitable for use in interconnect cables.
Patent CA-2227861-A1 (CA)
Title: A method for enhancing the anti-skid or friction properties of a cellulosic fiber
Inventor: TILLIRSON ERIC
IPC: D21H23/04
Filed: 1998-01-22
Abstract: The invention relates to a method for enhancing the anti-skid or friction properties of a cellulosic fiber, by transporting cellulosic fiber from a machine chest and then to a stuff box and then to a headbox; and contacting a suspension of the cellulosic fiber with an anionic colloidal silica prior to or at the stuff box. The invention further relates to a method for enhancing the anti-skid or friction properties of a cellulosic fiber, by transporting cellulosic fiber from a stuff box to a headbox; and contacting a suspension of the cellulosic fiber with an anionic colloidal silica prior to or at the stuff box. The invention further relates to the products produced by the present invention.