baber/WOPTO huggingface dataset:
Patent CA-2245037-A1 (CA)
Inventor: KAHLE JAMES A
IPC: G06F13/364
Filed: 1998-08-14
Abstract: A method and system for enhanced bus arbitration in a multiprocessor system having multiprocessors coupled to a system memory via a common wide bus. The common wide bus is subdivided into multiple sub-buses which may be accessed individually or in groups by a selected processor, or individual sub-buses may be accessed by multiple processors simultaneously. In response to one or more pending transactions, each processor outputs a request to bus arbitration logic for a arbitration logic for a number of sub-buses. A maximum number of sub-buses is specified for each processor and the processors are prioritized. Each time a bus request is received from a processor, the number of requested sub-buses is granted, if that number is equal to or less than the specified maximum number of sub-buses for that processor. If the requested number of sub-buses is greater than the specified maximum number of sub-buses for that processor the requested number is granted if no other processor has issued a bus request.
Patent CA-2245673-A1 (CA)
Inventor: HAUSMAN DONALD F JR
IPC: H05B37/02
Filed: 1997-02-05
Abstract: Apparatus for controlling at least one electrical device (54) by remote control includes at least one control device (50) coupled to the electrical device (54) by a power line connection, the control device (50) having a switch (58, 59) for adjusting the status of the electrical device (54). The control device (50) has a radio frequency (RF) transmitter/receiver for adjusting and communicating the status of the electrical device. A master control unit (20) is provided having at least one actuator and status indicator (22). The master unit (20) has a transmitter/receiver for transmitting RF information to control the status of the electrical device and for receiving the status information from the control device (50). The master control unit (20) indicates status of the electrical device(54). A repeater transmitter/receiver (40) is provided for receiving the RF signal from the master unit (20) and transmitting control information to the control device (50) and for receiving the status information.
Patent CA-2247625-A1 (CA)
Inventor: ALLEN RICHARD C
IPC: G02B5/30
Filed: 1997-02-28
Abstract: An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix in combination with light directing materials to enable control of light emitted from a lighting fixture or display. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film, and the light directing materials are chosen to control the direction of polarized light reflected from or transmitted by the optical film.
Patent CA-2247737-A1 (CA)
Title: Handrail for moving walkways and escalators
Inventor: SCHULTE KARL
IPC: B66B23/24
Filed: 1998-09-22
Abstract: This invention relates to a handrail for a people mover, such as an escalator or moving walkway, with a grip for people to grasp and a one-piece structure comprising several layers with structural inserts, with the layers being joined together to form the one-piece structure.
Patent CA-2249787-A1 (CA)
Inventor: GULLICKSEN JEFFREY T
IPC: H04L12/56
Filed: 1998-10-06
Abstract: Methods and apparatus for accelerating a router in a communications network are described. In one embodiment, a router accelerator includes a forwarding table for associatively storing a destination address and a next hop address. If a destination address of a packet matches a destination address in the forwarding table, then logic forwards the packet to a next hop. A router may be coupled to at least one network port through the router accelerator. In another approach, the network includes at least one host and at least one router. The host has at least one routing table for associatively storing a second-level destination address, a second-level next hop address and a first-level next hop address. A router accelerator includes redirect logic for storing the second-level destination address in a second-level next hop address entry in the at least one host routing table. This causes the host to request a first-level next hop address corresponding to the second-level destination address. An accelerator table responds to the host's request with the bound first-level next hop address. In another approach employing host routing tables, a router accelerator includes request logic for requesting from the router a second-level next hop address in response to the first-level next hop address. Redirect logic stores the second-level next hop address in a second-level next hop address entry in the at least one host routing table. This causes the host to request a first-level next hop address corresponding to the second-level next hop address.
Patent CA-2250465-A1 (CA)
Title: Method for making food article
Inventor: LEADBEATER JOHN MICHAEL
IPC: A23L1/00
Filed: 1998-11-02
Abstract: The invention relates to a method of making food articles such as chocolate centres. The method comprises providing solidifiable liquid, providing a pair of parallel arranged rollers having cavities defined on their outer cylindrical surface, providing depositors for depositing the liquid food onto said rollers. Liquid food is deposited into the cavities on the first roller to provide a first separate part of a food article, and into the cavities on the second roller to provide a second separate part of a food article. By counter-rotating the rollers to move the roller surfaces towards one another and to join the separate parts into one food article. The invention also relates to an apparatus for this purpose.
Patent CA-2251188-A1 (CA)
Title: Horizontal and vertical receiver-consistent deconvolution for an ocean bottom cable
Inventor: GAISER JAMES E
IPC: G01V1/38
Filed: 1998-10-19
Abstract: The objective of this invention is to provide a method for estimating, in the frequency domain, deconvolution operators for removing spurious resonant coupling responses from the cross-line and the vertical seismic signal components in OBC surveys.  The purpose is to balance the spectral response of the respective signal component in amplitude and phase in a manner consistent with the field geometry.
Patent CA-2252801-A1 (CA)
Title: Subtractive amplification
Inventor: MALEK LAWRENCE T
IPC: C12Q1/68
Filed: 1997-04-29
Abstract: A method is provided for preferentially amplifying target RNA relative to non-target RNA in a sample of tester RNA. According to the method, a sample of tester RNA is contacted with driver sequences which are complementary to the non-target RNA under conditions where the driver sequences hybridize to the non-target RNA. A nucleic acid primer is then extended using the target RNA as a template, forming a DNA template complementary to some or all of the target RNA. The DNA template formed using the target RNA as template is then rendered single-stranded to enable the hybridization of the DNA template to a promoter template. The DNA template is then extended using the promoter template to form an extended DNA template comprising a functional double-stranded promoter. Multiple copies of the target RNA sequence can now be transcribed from the extended DNA template through recognition of the contained functional double-stranded promoter by RNA polymerase.
Patent CA-2254936-A1 (CA)
Title: Secured system for accessing application services from a remote station
Inventor: ORENSHTEYN ALEXANDER S
IPC: G06F1/00
Filed: 1997-12-09
Abstract: A secured system is provided for accessing application services running on a remote server (12) from a client station (15). The system includes at least one client station (15), each having low-level graphical interface and file logic stored therein and at least one controller, such as a digital signal processor. The controller controls the graphical interface and the file logic.  The file logic includes a file system capable of storing data corresponding to the application programs. Further, the system includes at least one remote application server (12), each server having high-level application logic for running corresponding application programs stored locally or remotely. In addition, a low-level interface connects each client and server. In this system, the cost of manufacturing such clients (15) are far less expensive but far more robust than conventional general purpose computers. Further, the server application programs need not be written specific to or be dependent on any specific operating system platform.
Patent CA-2255732-A1 (CA)
Title: High-efficiency self-regulated electronic ballast with a single characteristic curve for operating high-pressure sodium vapour lamps
Inventor: SIFUENTES-RODRIGUEZ NEFI
IPC: H05B41/288
Filed: 1997-03-17
Abstract: A high-efficiency self-regulated electronic ballast with a single characteristic curve for operating high-pressure sodium vapor lamps by means of an AC-to-DC converter circuit, a power factor correcting regulator circuit for reducing harmonic distortion, a high-frequency DC-to-AC converter circuit, a reducing autotransformer circuit with a current limiting inductor and an igniter, and a light-controlled switching circuit. The ballast is characterized in that it supplies a controlled high-frequency alternating voltage to the assembly for the limiting inductor and the lamp, whereby the ballast has a single characteristic curve, and in that the average power consumption of the lamp is determined on the basis of the single characteristic curve of the ballast within the standard regulation trapezoid defining the average consumption of the ballast/lamp assembly. Said ballast has uniform regulation characteristics, high electrical efficiency, a unitary power factor, low harmonic distortion, a high ballast efficiency factor, and a low stroboscopic effect.
Patent CA-2255867-A1 (CA)
Title: Chitosan induced immunopotentiation
Inventor: MARTINEZ MITZI L
IPC: A61K39/39
Filed: 1997-03-25
Abstract: Methods and compositions for potentiating an immune response are disclosed which incorporate chitosan as an immunopotentiating adjuvant. Administration of the compositions of the invention is effected by various routes.
Patent CA-2256497-A1 (CA)
Inventor: TAKAHASHI HIDEAKI
IPC: B60R21/2165
Filed: 1998-03-20
Abstract: At a generally central portion in the longitudinal direction and on both sides in the lateral direction of an airbag door section (20) of an instrument panel (10), a tier section (24) of a H shape when viewed from above is provided. In the airbag door section, projections (28, 30) protrude downward from both sides in the lateral direction of the vehicle, of the central part (24A) of the tier section (24), and these projections (28, 30) are molded integrally with the airbag door section (20). As a result, when the airbag body is developed, the developed airbag body (18) comes into contact with the under faces (28A, 30A) of the projections (28, 30), and thrust the projections (28, 30) upward. Thus, it is possible, even when the airbag door section and the body section of the interior member are molded of the same resin, that the breaking force acting on the fracturing part of the airbag door section can be reduced to a desired level without deteriorating the appearance.
Patent CA-2257124-A1 (CA)
Inventor: NICKUM LARRY A
IPC: G06F3/0346
Filed: 1997-06-03
Abstract: A position sensor comprises two curved surfaces concentrically aligned to form a container which is filled with a viscous fluid and a bubble of a lighter-weight fluid and placed between a radiation source and a radiation detector.  The bubble changes position within the container when the sensor is moved, transmitting a beam of radiation from the radiation source through the bubble to activate a section of the radiation detector while the remainder of the radiation is blocked by the fluid. Position sensing circuitry translates a signal from the activated section of the radiation detector into position coordinates for point in space corresponding to the position of the bubble in the container. The position sensor is suitable for use in a digital controller that generates display attributes to define a locator symbol on an output device. The digital controller can include an optional button to permit a user to change the size of the locator symbol, making it appear to approach or recede, to provide a simulated three-dimensional display.
Patent CA-2261860-A1 (CA)
Inventor: NGUYEN HUU-PHUOC
IPC: G01N27/62
Filed: 1997-08-12
Abstract: The apparatus (10) comprises an injector (11) for products to be analysed, a column for splitting (12) said products, a detector (13) of the flame ionisation detector type and a device (14) for producing fuel gas. This device (14) comprises an electrolyzer outfit (15) containing distilled water or an aqueous solution of caustic soda (NaOH) or caustic potassium (KOH), in which are immersed two electrodes (16, 17). These electrodes are supplied by an electric energy source (18). Hydrogen and oxygen are formed at the electrodes and are transmitted, without separation, by means (19) for supplying said flame ionisation detector with hydrogen and oxygen.
Patent CA-2266889-A1 (CA)
Title: Purine l-nucleosides, analogs and uses thereof
Inventor: WANG GUANGYI
IPC: A61K31/519
Filed: 1997-10-15
Abstract: Novel purine L-nucleoside compounds are disclosed, in which both the purine rings and the sugar are either modified, functionalized or both. The novel compounds or pharmaceutically acceptable esters or salts thereof may be used in pharmaceutical compositions, and such compositions may be used to treat an infection, and infestation, a neoplasm, or an autoimmune disease. The novel compounds may also be used to modulate aspects of the immune system, including modulation of Th1 and Th2.
Patent CA-2267795-A1 (CA)
Title: Sample collection devices and methods using markers and the use of such markers as controls in sample validation, laboratory evaluation and/or accreditation
Inventor: MITCHELL LLOYD G
IPC: C12Q1/6876
Filed: 1997-10-03
Abstract: The invention is directed to a device suitable for marking a collected sample, comprising collecting means for collecting the sample and at least one detectable marker which is associated with at least a portion of the collecting means, wherein the at least one detectable marker is contactable with the sample upon collection of the sample to mark the collected sample upon contact of the sample with the at least a portion of the collecting means having the at least one detectable marker associated therewith, and wherein the at least one detectable marker is other than a component which is present in the sample before collection and is inert to any component present in the sample before collection. Kits containing the device, methods for marking samples using the device, methods for determining the integrity of a marked sample, and use of the markers for the testing of laboratories and/or laboratory personnel for certification, proficiency testing or accreditation purposes are also provided.
Patent CA-2268377-A1 (CA)
Title: Royalty collection method and system for use of copyrighted digital materials on the internet
Inventor: BERSTIS VIKTORS
IPC: G06Q20/12
Filed: 1999-04-08
Abstract: A method, system and computer program product to facilitate royalty collection with respect to online distribution of electronically published material over a computer network. In one embodiment, a method for managing use of a digital file (that includes content subject to copyright protection on behalf of some content provider) begins by establishing a count of a number of permitted copies of the digital file. In response to a given protocol, a copy of the digital file is then selectively transferred from a source to a target. Thus, for example, the source and target may be located on the same computer with the source being a disk storage device and the target being a rendering device (e.g., a printer, a display, a sound card or the like). The method logs an indication each time the digital file is transferred from the source to a target rendering device, and the count is decremented upon each transfer. When the count reaches a given value (e.g., zero), the file is destroyed or otherwise prevented from being transferred from the source device. The indications logged are transferred to a management server to facilitate payment of royalties to the content provider.
Patent CA-2273092-A1 (CA)
Title: Godet a encre rotatif
Inventor: SCHEUHING ROBERT B
IPC: B41F3/38
Filed: 1997-12-03
Abstract: Un support (20) de godet destiné à faire tourner un godet (12) de modification de l'encre se compose d'un boîtier (22) possédant la chambre (26) de réception de godet et un butoir (28) s'étendant dans cette chambre (26). Au cours de l'encrage de la plaque d'héliogravure (14), le butoir touche le godet d'encre (12) pour le faire tourner à l'intérieur de la chambre (26). Au cours de cette phase, c'est le mouvement relatif de la plaque (14) et du godet d'encre (12) qui fait que le butoir (28) touche le godet d'encre (12). Un deuxième butoir (30) s'étend dans ladite chambre (26). Un procédé d'encrage d'une plaque d'héliogravure consiste à encrer la plaque par un mouvement relatif entre un godet d'encre et la plaque, et la rotation du godet d'encre au cours de l'encrage de manière à ce qu'un bord dudit godet touchant la plaque tourne par rapport à elle. Le mouvement relatif est à l'origine de la rotation.
Patent CA-2273357-A1 (CA)
Title: Bicycle seat
Inventor: NELSON PAUL DAMIAN
IPC: B62J1/00
Filed: 1997-12-02
Abstract: A bicycle seat is shown which includes a shell (11) formed from plastics material which has two buttock support portions (12 and 14) separated by a slot (16). The shell (11) includes a nose portion (18) and the transition between the support portions (12 and 14) and the nose portions (18) forms hinges (20 and 22) for allowing the support portions (12 and 14) to move independently with respect to one another in arcuate fashion during pedalling motion of the bicycle. A support rail (40) is coupled to the underside of the shell (11) and may have free ends (145) which act as stops to limit the amount of movement of the support portions (12 and 14). Springs (184, 190) may be provided between the mounting rail (40) and the shell (11). In other embodiments (Figures 42 to 80), the seat may include chambers for receiving air to cushion and provide support for a rider.
Patent CA-2274779-A1 (CA)
Title: Aminosterol ester compounds
Inventor: JONES STEVEN
IPC: C07J41/00
Filed: 1997-12-18
Abstract: An aminosterol compound according to formula (I) wherein R1 is a member selected from the group of: (a), wherein R6 is H or (b); (c); and (d); R2 is H or OH; R3 is H or OH; R4 is H or OH; and R5 is a C1 to C12 alkyl group, or pharmaceutically acceptable salts thereof. Preferably, R5 is a C1 to C6 alkyl group, and a methyl group is particularly preferred.
Patent CA-2276449-A1 (CA)
Title: Apparatus for enhancing strain in intrinsic fiber optic sensors and packaging same for harsh environments
Inventor: MARON ROBERT J
IPC: G01D5/353
Filed: 1997-12-19
Abstract: A sensor system for sensing a measurand field within an environment includes an optical source, such as a light emitting diode, for providing broadband light to an array of serially coupled sensor elements disposed within an optical fiber (28). Each sensor element includes a fiber grating (Bragg grating) (44) which, when illuminated, reflects a narrow band of light having a specified central wavelength. The optical fiber is deployed in a high strength hermetically sealed capillary tubing structure (5). Within the capillary tube, at least in the area of the sensor elements, the capillary tubing is filled with a high-density, low-compressibility, and high thermal conductivity material, such as a liquid (48), which completely fills all of the void spaces within the capillary tubing between the tubing and the sensor elements such that compressive forces which are exerted on the extermal surfaces of the tubing are accurately transmitted to the sensor elements.
Patent CA-2279429-A1 (CA)
Title: Circuit a verrouillage
Inventor: JESSEN JEPPE RUNE
IPC: H03K19/20
Filed: 1998-01-27
Abstract: L'invention concerne un circuit à verrouillage basse tension adapté au mode différentiel et ayant une tension d'alimentation de 2,5V et un écart de tension de 200mV à 300mV. On utilise deux inverseurs, chacun étant doté d'un terminal d'entrée non inverseur et d'un terminal d'entrée inverseur ainsi que d'un terminal de sortie inverseur. Les terminaux de sortie non inverseurs sont reliés à l'entrée d'une structure OU, et les terminaux de sortie inverseurs son reliés à l'entrée d'une autre structure OU. Les terminaux d'entrée d'un inverseur constituent les terminaux d'entrée du circuit à verrouillage. Les terminaux d'entrée et l'autre inverseur sont reliés aux terminaux de sortie des structures OU et constituent la sortie du circuit à verrouillage. Les tensions d'alimentation des inverseurs sont variées de telle manière qu'à n'importe quel moment, seul un inverseur ait une tension d'alimentation appropriée. L'inverseur commande alors la sortie du circuit à verrouillage. On obtient ainsi une fonction de verrouillage.
Patent CA-2279554-A1 (CA)
Title: Vascular endothelial growth factor c (vegf-c) protein and gene, mutants thereof, and uses thereof
Inventor: JOUKOV VLADIMIR
IPC: C12N1/21
Filed: 1998-02-02
Abstract: Provided are purified and isolated VEGF-C polypeptides capable of binding to at least one of KDR receptor tyrosine kinase (VEGFR-2) and Flt4 receptor tyrosine kinase (VEGFR-3); analogs of such peptides that have VEGF-C-like or VEGF-like biological activities or that are VEGF or VEGF-C inhibitors;  polynucleotides encoding the polypeptides; vectors and host cells that embody the polynucleotides; pharmaceutical compositions and diagnostic reagents comprising the polypeptides; and methods of making and using the polypeptides.
Patent CA-2279652-A1 (CA)
Title: Method and apparatus for resource allocation in a cell/packet based network
Inventor: HUANG JUN
IPC: H04L47/80
Filed: 1999-08-05
Abstract: A cell/packet based network provided for transmitting Protocol Data Unit (PDU) such as Asynchronous Transfer Mode (ATM) user cells or Internet Protocol (IP) integrated and differentiated service packets. The networks employ a method and apparatus for allocating network resources including uses cell/packet transferring bandwidth in the channel/connection/flow set up phase. The calculation of effective bandwidth is done by hardware using additive-Fractal and measurement-based approach to shorten the processing time and to increase the overall system reliability and efficiency.
Patent CA-2280112-A1 (CA)
Title: Method and device for feeding a controlled volume flow of liquid to a spray nozzle
Inventor: ANFINDSEN OLE ARNT
IPC: B05B12/08
Filed: 1997-11-26
Abstract: In a device for feeding a controlled volume flow of liquid to a spray nozzle for automatic spray application a member (4) of displacement pump type is arranged in a conduit between a liquid source and the spray nozzle. The very feeding of the liquid in the conduit is caused by a pump means located upstream of the member of displacement pump type. The pressure of the liquid is measured by means (8, 9) upstream and downstream of the member of displacement pump type, and the throttling degree of a valve means (6) is regulated for obtaining a correspondence between the pressure values measured corresponding to a volume flow predetermined by the speed of the movable parts of the member of displacement pump type.
Patent CA-2280824-A1 (CA)
Inventor: HSU STEVE L C
IPC: C08L79/08
Filed: 1998-04-08
Abstract: A process for producing a polyimide composition by reacting at least one polyamic acid or at least one polyamic ester or a mixture of at least one polyamic acid and at least one polyamic ester with a selected phosphoramide in the presence of at least one base catalyst to form a polyimide composition.