baber/WOPTO huggingface dataset:
Patent CA-2310428-A1 (CA)
Title: Using decoupled power control sub-channel to control reverse-link channel power
Inventor: LI QUINN
IPC: H04B7/005
Filed: 2000-06-01
Abstract: In a wireless communications system, a base station transmits power control signals (e.g., the power control bits of a power control sub-channel) to a mobile using a forward-link channel that is decoupled from all other signals transmitted from that base station to that mobile. For example, the decoupled forward-link channel may be a common power control channel. The mobile then uses the power control signals received in the decoupled forward-link channel to control its power level for transmitting one or more reverse-link channels to the base station. The ability of base stations to use decoupled forward-link channels in order to transmit their power control signals to a mobile enables a mobile to operate with different active sets for the forward and reverse links. This enables forward-link data traffic to be implemented using a simplex mode, even when the mobile is operating in soft handoff in the reverse link. This in turn greatly reduces the reactivation time involved in transitioning a mobile from the suspended state to the active state, which is particularly desirable for bursty (i.e., intermittent) packet data flow, as opposed to continuous circuit-oriented voice messaging.
Patent CA-2315949-A1 (CA)
Title: Novel plant-derived map kinase kinase
Inventor: MARTIN-HELLER TERESA
IPC: C12N15/82
Filed: 2000-08-22
Abstract: A mitogen-activated protein (MAP) kinase kinase gene, tMEK2, was isolated from tomato cv. Bonny Best. By mutagenesis, a permanently-active variant, tMEK2MUT, was created. Both wild type tMEK2 and mutant tMEK2MUT were driven by a strong constitutive promoter, tCUP.DELTA., in a tomato protoplast transient expression system.   Pathogenesis-related genes, PR1b1 and PR3, and a wound-inducible gene, ER5, were activated by tMEK2MUT expression revealing the convergence of the signal transduction pathways for pathogen attack and mechanical stress at the level of MAPKK.  Activation of biotic and abiotic stress response genes downstream of tMEK2 occurred through divergent pathways involving at least two classes of mitogen-activated protein kinase.   This study shows that tMEK2 may play an important role in the interaction of signal transduction pathways that mediate responses to both biotic (eg disease) and abiotic (wound responsiveness) stresses.
Patent CA-2316228-A1 (CA)
Title: Process and device for the extrusion of polymers with high percentage of inert materials
Inventor: ZAIDI HAJER BENT-MAHFOUDH
IPC: B29C48/03
Filed: 1999-07-27
Abstract: Process for the extrusion of polymers with a high percentage of inert materials; being meant with such an expression percentages from 35-40 % by weight to 70-80 % by weight on the total, including the stages of: feeding of precisely measured amounts of the components and the additives in axially distanced points of a screw mixer; intimate mixing of said components and their extrusion through the extrusion head of said mixer. Said process is carried out through a device including an extruder (1) for the transformation of a mixture consisting of at least one polymer, an inert material and one or more additives such as lubricants, stabilizers or else, means (2, 3, 4) (2, 3, 4) for the ensiling of each of said mixture components, devices (21, 31, 41) for the continuous weighing of each of said components and means (6, 8, 9) for the feeding of said components. Such feeding means (6, 8, 9) are positioned in prearranged points along the extruder (1) according to the composition of the mixture to be transformed.
Patent CA-2318026-A1 (CA)
Title: Encryption synchronisation for use with data streams
Inventor: REINKELUERS CHRIS
IPC: H04L9/12
Filed: 2000-09-11
Abstract: A method of ensuring synchronization of the encryption of a stream of data packets from a transmission end and the decryption of the stream of data packets at a reception end. The stream is encrypted by a changing encryption key. The method is comprised of inserting at least one heart beat packet in the stream per cryptoperiod, receiving the heart beat packets at the reception end, removing the heart beat packets from the data stream at the reception end, wherein the encryption key is changed once per cryptoperiod.
Patent CA-2318117-A1 (CA)
Title: Efficient nuclear transfer using primordial germ cells
Inventor: ZAKHARTCHENKO VALERI
IPC: C12N15/873
Filed: 1998-01-16
Abstract: The invention relates to a method for rearing animals by means of cloning and to the animals obtained using said method. The invention especially relates to a method for reproducing animal embryos via an efficient nuclear transfer using primordial germ cells.
Patent CA-2319873-A1 (CA)
Title: System, transmitter and receiver for code division multiplex transmission
Inventor: HIRAKAWA SHUJI
IPC: H04J13/00
Filed: 2000-09-15
Abstract: The code division multiplex transmission system according to the present invention produces data for transmission by, time-division multiplexing the signals for synchronizing spread code prepared for an easy synchronization of spread code on the receiving side and the information related to the structure or synchronization of each of a plurality of transmission data streams such as parameters information about the coding rate of the convolution code and interleaving size for each transmission data stream, generating spread frequency modulated signals of the above time-division multiplexed signals by a spread frequency modulation using a spread code known to the receiving side, and code-division multiplexing the resulting spread frequency modulated signals over the spread frequency modulated signals of the plurality of transmission data streams. As a result, the receiving terminal can obtain information such as parameters information of all the transmission data streams, as long as the receiving terminal receives the synchronization signal. Therefore, even if the receiving terminal does not understand the parameter values required for the reception of each transmission data stream, the receiving terminal can receive any transmission data stream easily and quickly, by setting the parameter values for each receiving process based     on the parameters information about each transmission data stream obtained by the reception of the synchronization signal.
Patent CA-2322484-A1 (CA)
Title: Method for removal of cuttings from a deviated wellbore drilled with coiled tubing
Inventor: WILDE GRAHAM B
IPC: E21B21/00
Filed: 1999-03-03
Abstract: Method and apparatus for removing drill cuttings (CB) from a deviated wellbore (WB) drilled with coiled tubing (CT), and more particularly method and apparatus for removing "cutting beds" from a significantly horizontal wellbore drill with a downhole motor (M) by creating flow of fluid in the wellbore at a critical flow rate, above a flow rate range designed for the drilling.
Patent CA-2323357-A1 (CA)
Inventor: ESKELINEN IIKKA
IPC: D21G3/00
Filed: 1999-03-02
Abstract: The invention concerns an equipment and a method in handling of doctor blades for a paper/board machine. The doctor blade (T) will be placed against the face of a roll in the paper/board machine so as to keep said face clean and to service said face. A doctor blade blank (T) is taken from a doctor blade roll (10a1, 10a2, 10a3 ...), i.e. from a reel. The equipment comprises a cut-off device (14a1, 14a2 ...) for cutting off the doctor blade material to the desired pull-out or blade length.
Patent CA-2323848-A1 (CA)
Inventor: HEWITT TIMOTHY W
IPC: F16M11/42
Filed: 1999-03-12
Abstract: A mobile base assembly (10) for movably supporting machinery comprises stamped corner members (16), extension members (14), support wheel attachments (26), caster wheel assemblies (17), and at least two stops (40) for supporting the machinery in a stationary position. The extension members (14) and the corner members (16) each have a plurality of holes. The holes in the extension members can be aligned with the holes in the corner member for receipt of bolts to fasten the extension member to the corner member. Further, each caster wheel assembly has a lifting mechanism (42) that allows the mobile base assembly to be raised and lowered. The mobile base assembly (10) is mobile in the raised position and stationary in the lowered position. In an alternative embodiment the support wheel attachments and caster wheel assemblies are attached directly to the machinery.
Patent CA-2326127-A1 (CA)
Title: Laser welded brachytherapy source and method of making the same
Inventor: CUTRER L MICHAEL
IPC: A61N5/10
Filed: 1999-03-24
Abstract: A brachytherapy source for use in radiation treatment of the body includes radioactive material, and a housing. The housing is used to contain the radioactive materials, and is formed by at least one tube having two ends. The two ends of the at least one tube are sealed by welding such that a radiation distribution of the brachytherapy source approximates a point source that is free of cold zones to minimize underexposure or overexposure of the body to radiation and to simplify the placement of the brachytherapy source in the body. Preferably, the ends of the at least one tube are sealed by laser welding, and a laser performs the laser welding while the brachytherapy source is rotated relative to the laser, which is activated in short pulses. For example, the laser is activated in a first series of pulses to initially collapse one end of the at least one tube and to at least partially close off the one end, then the laser is activated for a second series of pulses to seal off the one end of the at least one tube and remove excess material, next the laser is activated in a third series of pulses to initially collapse the other end of the at least one tube and to at least partially close off the other end, and finally, the laser is activated for a fourth series of pulses to seal off the other end of the at least one tube and remove excess material.
Patent CA-2328761-A1 (CA)
Title: Housing for electrical device with relief for shearable ribs
Inventor: STRANG WARD E
IPC: H05K7/14
Filed: 2000-12-19
Abstract: A housing for an electrical device including opposed supports or ribs receiving thereon a circuit board having first and second sides separated by a width "a". A first board support is attached to the housing and has a first side surface, a first support surface substantially perpendicular to the first side surface for supporting the circuit board, and a first recess in the first support surface.  A second board support is attached to an opposing side surface of the housing.  The side surfaces of the board supports are separated by a distance "b". When distance "a" is greater than distance "b", the circuit board is retained in an interference fit. Scrapings that are formed during the insertion of the circuit board into the housing can be collected in the support recesses, which provide relief areas, to avoid interfering with the proper seating of the circuit board on the board supports.
Patent CA-2329445-A1 (CA)
Inventor: TAYLOR FREDRICK
IPC: B60C3/04
Filed: 2000-12-21
Abstract: A pneumatic tire primarily for, but not limited to, off the-road vehicles, the tire having an inner diameter to outer diameter ratio of between 0.55 - 0.70.
Patent CA-2330092-A1 (CA)
Inventor: ITO FUMITAKA
IPC: A61P25/28
Filed: 2001-01-03
Abstract: A compound of the formula:   (see formula I) or a pharmaceutically acceptable salt thereof, wherein R1 is unsubstituted, mono-, di-or tri-substituted (C3-C11)cycloalkyl or (C3-C11)cycloalkenyl or the like, A  is unsubstituted (C1-C7)alkyl or (C2-C5)alkenyl, hydroxy-(C1-C4)alkyl, (C1-C4)alkoxy-(C=O),or unsubstituted, mono-, di- or tri- substituted aryl, or aromatic-heterocyclic or the like, M is a covalent bond O, S, NH or the like, Y is 4- to 12-membered bicyclic-carbocyclic rings or 4- to 12-membered bicyclic-heterocyclic rings, or 5- to membered spirocarbocyclic rings or 5- to 17-membered spiroheterocyclic rings or the like, Z1, Z2, Z3 and Z4 are hydrogen or the like, is disclosed. These compounds have ORL1-receptor agonist activity, and are thus useful as analgesics or the like in mammalian subjects.
Patent CA-2333209-A1 (CA)
Title: Separation of olefinic hydrocarbons from sulfur-containing hydrocarbons by use of a solvent
Inventor: BROWN RONALD E
IPC: C10G21/28
Filed: 2001-01-31
Abstract: A process for separating olefins from sulfur-containing hydrocarbons contained in a hydrocarbon feedstock is disclosed and includes contacting the hydrocarbon feedstock with N-hydroxyethyl pyrollidone in a contacting zone, removing at least one olefin overhead from the contacting zone, and removing at least a portion of the sulfur-containing hydrocarbons off the bottom of the contacting zone along with the N-hydroxyethyl pyrollidone.
Patent CA-2333590-A1 (CA)
Inventor: KATO SEIZO
IPC: C08L63/00
Filed: 1999-07-15
Abstract: A rotary trowel (1) for use in the molding of ceramics (15) comprising a trowel matrix (2) and a trowel surface (3) provided on said trowel matrix (2) so as to make contact with a raw clay composition (15) and calender the raw clay composition (15), characterized in that said trowel surface (3) is formed by providing an epoxy resin composition containing an abrasion-resistant material on the inner surface of a casting mold (6).
Patent CA-2338640-A1 (CA)
Title: Rfid system for detecting low power resonant tags
Inventor: ECKSTEIN ERIC
IPC: H04B10/2575
Filed: 1999-07-13
Abstract: In a radio frequency identification (RFID) system using intelligent tags, amplitude and phase noise is minimized by using a low noise crystal oscillat or (70) having an output frequency which is an integer multiple of the desired RF field frequency, then dividing this frequency using cascaded flip-flops for the frequency divider (72). Both outputs of the final stage flip-flop drive the transmitter antenna (34) to produce a continuous wave signal. Fiber opti cs (44) communicate analog tag response signals from the output of the receiver  circuit (24) to the input of a tag response signal anlyzing module (20) including a digital signal processor (DSP 38), thus providing electrical isolation between these circuit elements, breaking ground loops, stopping internal switching noise from the DSP (38) from entering the receiver circuitry (24), and preventing common mode signals from interfering with the  desired RFID tag signal.
Patent CA-2341674-A1 (CA)
Title: Method and apparatus for optical system link control
Inventor: NEWHOUSE MARK A
IPC: H04B10/29
Filed: 1999-08-13
Abstract: A method for tuning and improving the performance of an optical communicatio n system comprising a link that includes optical amplifiers and, optionally, active and/or passive optical components such as, e.g., DWDM's, WADM's, and optical cross-connects, includes preferentially shaping and, in particular, flattening, with respect to the input power spectrum, the output power spectrum from the amplifier, component or of the link. A flattened output power spectrum is obtained by modifying the gain spectrum operating on the respective input power spectrum. Feedback for such gain modifications is typically provided by optimizing the optical signal to noise ratio of each channel of the respective output power spectrum. A system link, an optical amplifier, and optical components having flattened output power spectra are also described.
Patent CA-2341930-A1 (CA)
Inventor: GIOBBI JOHN J
IPC: G07F17/32
Filed: 2001-03-21
Abstract: An open-loop cashless gaming system and method employ a portable smart data medium and a gaming machine. The smart data medium is inherently more secure and less susceptible to fraud than other mediums of exchange. The smart data medium is embedded with a microcontroller having a memory storing first monetary data. The gaming machine includes a visual display, a credit meter, and a receptacle for receiving the smart data medium. To start playing a game of chance on the visual display, a player inserts the smart data medium into the receptacle. The first monetary data is transferred to the gaming machine and, if the monetary data is a currency amount, converted to a first number of credits that are added to the credit meter. With credits on the credit meter, the player can place wagers and play one or more cycles of the game of chance. Unless the player exhausts all of his or her credits, a second number of credits remain on the credit meter after the game of chance has been played. In response to the player activating a "collect"  switch on the gaming machine, the second number of credits are converted to a currency amount (if the monetary data is a currency amount) and transferred to the memory of the smart data medium. The cashless gaming system and method are open-loop in that the credit-in and credit-out transactions are performed by the gaming machine without communicating with any remote computer linked to the machine.
Patent CA-2343109-A1 (CA)
Title: Thrombin inhibitors
Inventor: CUTRONA KELLIE
IPC: C07K5/06
Filed: 1999-09-24
Abstract: Compounds of the invention are useful in inhibiting thrombin and associated thrombotic occlusions having the following structure (I) or (II) e.g. (III).
Patent CA-2343491-A1 (CA)
Title: Method to reduce input parameter interface error and inconsistency for servlets
Inventor: LI JIN
IPC: G06F17/27
Filed: 2001-04-03
Abstract: A GUI utility tool running on a web application development environment is presented that acts to eliminate inconsistency between a given HTML user input form description file and a corresponding servlet program file. The tool allows the user to specify an HTML file. The tool may then parse the HTML file to discover input parameters and generate Java servlet program code to receive the input parameters.
Patent CA-2344898-A1 (CA)
Title: Teletrips
Inventor: FLEMING SCOTT
IPC: G06Q10/10
Filed: 2001-04-23
Abstract: A system and method for tracking pollution credits earned by an employer through the application of a telework program, including registering an employee of the employer, receiving communications from the employee of data respecting telework performed by the employee, calculating pollution credits earned by the employer as a result of the telework performed by the employee, and communicating the pollution credits earned by the employer to a third party server.
Patent CA-2346537-A1 (CA)
Title: Monomeric and dimeric heterocycles, and therapeutic uses thereof
Inventor: KOZIKOWSKI ALAN P
IPC: A61K31/443
Filed: 1999-10-07
Abstract: The invention provides compounds of the formula (I) X-L-X1 wherein X, L, and  X1 have any of the meanings defined in the specification; as well as a pharmaceutical composition comprising a compound of formula (I); intermediat es and methods useful for preparing a compound of formula (I); and therapeutic methods for treating drug addiction, Parkinson's disease, depression, or a disease wherein the administration of cocaine is indicated, comprising administering a compound of formula (I) or a pharmaceutically acceptable sal t thereof to a mammal in need of such treatment.
Patent CA-2349459-A1 (CA)
Title: Two-cycle lubricating oil
Inventor: L HEUREUX GEORGE C
IPC: C10M167/00
Filed: 2001-06-01
Abstract: There is disclosed a two cycle oil comprising a VI improver, solvent and polyisobutylene which has a Brookfield viscosity of less than 17,000 cP at -40°C and a KV of at least 6.5 mm2/s at 100°C.
Patent CA-2352112-A1 (CA)
Inventor: ROBIN JEAN-PHILIPPE
IPC: F24D3/10
Filed: 1999-11-22
Abstract: Ce dispositif comporte un premier orifice (34) calibré ou réglable, ainsi qu'un second orifice (36) situé en aval du premier orifice (34).  L'ouverture du second orifice (36) est réglée d'une part par un clapet (38) dont la position est commandée par des moyens (46, 56) permettant le déplacement du clapet en fonction de la différence de pression (P2-P1) existant entre l'amont et l'aval du premier orifice (34) et d'autre part par des moyens (48) permettant de réaliser un déplacement en fonction de la température du local dans lequel se trouve le dispositif. Ce dispositif est monté dans deux corps (88, 90) distincts, reliés l'un à l'autre, un premier corps (90) correspondant au premier orifice (34) et un second corps (88) correspondant au second orifice (36). Ce dispositif réalise à la fois un équilibrage hydraulique automatique et une régulation thermostatique.
Patent CA-2352197-A1 (CA)
Title: Thermosetting poly urethane/urea-forming compositions
Inventor: JONES CRISPIN FRANK MAXWELL
IPC: C08K5/521
Filed: 1999-12-17
Abstract: The present invention relates to poly urethane/urea-forming casting composition that can be cast and cured at temperatures between 15 and 35 ~C using a reaction mixture of (a) an isocyanate component or an isocyanate functional prepolymer having at least two isocyanate groups per molecule tha t contains or has been reacted with polytetramethylene glycol; (b) an aromatic  amine curative; and (c) a phosphate ester or phthalate ester having a vapor pressure of less than 100 mPa at 25 ~C. The present invention further relate s to a cast polyurethane and a process for curing a poly urethane/urea-forming  composition.
Patent CA-2354872-A1 (CA)
Inventor: MARSETTI SERGIO
IPC: B65G21/20
Filed: 2001-08-08
Abstract: A wall element incorporating idle rollers, presenting a body with seats into which stationary pins carrying idle rollers are snap- fitted; said body presents two parts (22, 30), of which one is the lower base part (22) and the other the upper base part (30), these being structurally separate, but connected together by just the pins (10, 21), which present end portions (15, 15A) transversely wider than adjacent portions (11a, 21a) provided for their snap-fitting into seats (12a,b,c;  22a,b,c) in said two parts (22, 30), said wider portions (15, 15A) abutting against said seats to prevent any movement of said parts (22, 30) in the axial direction of the pins (10, 21).
Patent CA-2354880-A1 (CA)
Inventor: AHMADIAN HALEH
IPC: A61P25/24
Filed: 2001-08-09
Abstract: Disclosed is a method for the preparation of citalopram comprising conversion of a compound of Formula VIII (see formula I) wherein Z is halogen, to a compound of Formula IV (see formula II) followed by conversion of the compound of Formula IV into citalopram. Methods for the preparation of the compound of Formula IV are also disclosed.
Patent CA-2359049-A1 (CA)
Inventor: ROSSET PATRICE JEAN MARC
IPC: F01D11/08
Filed: 2000-11-09
Abstract: L'anneau (103) est joint à l'entretoise (102) de la turbine par un assemblag e comprenant des crochets (32, 35) imbriqués d'un côté, et une butée de rebord s (38, 39) ainsi qu'un assemblage à tenon et mortaise (41, 42) de l'autre côté . Conformément à l'invention, le tenon et la mortaise (41, 42) sont séparés de s rebords en butée (38, 39) pour limiter les jeux en direction axiale produits  par construction ou par des dilatations thermiques, pour améliorer la résistance mécanique et pour simplifier la fabrication.
Patent CA-2359190-A1 (CA)
Inventor: TREPANIER FRANCOIS
IPC: G02B5/18
Filed: 2001-10-12
Abstract: A system and a method for recording interference fringes in a photosensitive medium. Two light beams are guided along different light paths to impinge on a photosensitive medium, where they interfere to produce the interference fringes. One of the beam is reflected along its path on a delay mirror forming a fixed angle .PHI. with respect to the plane of the photosensitive medium. Both the photosensitive medium and delay mirror are translated with respect to the light paths of the two beams, thereby recording the interference fringes all along the medium. The angle .PHI. is chosen so that the interference pattern is fixed relative to the photosensitive medium along its length.