baber/WOPTO huggingface dataset:
Patent CA-2278820-A1 (CA)
Title: Forward error correction for high speed optical transmission systems
Inventor: BORDOGNA MARK ALDO
IPC: H04B10/556
Filed: 1999-07-26
Abstract: Memory requirements and processing delays associated with the application of forward error correction in high speed optical transmissions are substantially reduced by mapping a forward error correction code on a row-by-row basis into unused overhead bytes in a high bit rate signal frame. By applying the forward error correction code to an entire row of the signal frame on a row by row basis, approximately one row needs to be stored at a time thereby reducing the total memory requirements for forward error correction processing. Using SONET as an exemplary application, approximately 1/9th of the entire SONET frame (e.g., one of nine rows) needs to be buffered for forward error correction processing. In an illustrative embodiment, four forward error correction (FEC) blocks are provided for each row for a total of 36 FEC blocks for a frame. Each FEC block comprises four bytes of correction bits for a total of 32 correction bits.  These 32 correction bits are mapped to unused overhead and are used for correcting errors in one block of one row of a signal frame, wherein one block covers 1/4th of the row. Other unused overhead bytes in the row can be used to carry error detection codes for detecting multiple errors in a row to determine when forward error correction should be disabled. For example, if a single bit error correcting code is employed, then error correction can be disabled to avoid false corrections if more than one error is detected.
Patent CA-2281840-A1 (CA)
Inventor: WISE FREDERICK M
IPC: B65D5/4805
Filed: 1998-02-26
Abstract: A carton is disclosed adapted to package a plurality of items for shipment, especially laptop computers and accessories. The carton includes a sidewall (12), end closures formed by a plurality of flaps (36-43), and a shelf assembly (50) forming compartments in the carton. The shelf assembly (50) includes a shelf panel (52), support pieces (64, 66) secured to the sidewall (12), and a spacer panel (70). A lip piece (72) hinged to the spacer panel (70) engages the sidewall (12) to permit selective positioning of the spacer panel (70) in different closed positions to accommodate differently sized contents.
Patent CA-2281963-A1 (CA)
Title: Deposition cavity apparatus for forming an airlaid article
Inventor: MONETTI MATTHEW
IPC: A61F13/15
Filed: 1990-05-24
Abstract: A deposition cavity apparatus for forming an airlaid article is in communication with a duct carrying a stream of air-entrained fibrous material to an airlaying location. The cavity apparatus has a frame portion in sealing engagement with the duct. A foraminous portion is also provided and is of a size sufficient to retain the air-entrained fibrous materials, whereby an airlaid article is formed in the region of the foraminous surface.
Patent CA-2282243-A1 (CA)
Title: Image data processing for digital x-ray detectors
Inventor: WILLIAMS CORNELL L
IPC: G06T5/40
Filed: 1998-02-20
Abstract: A method for automatically identifying the range of useful digital values to be displayed on a display medium and providing an appropriate gray scale transfer to optimize the diagnostic value of the final displayed image. One or more gray scale transfer functions corresponding to desired display media, one or more sets of experimentally determined constants, and one or more sets of algorithms are stored in a computer memory. A smoothed histogram and its histogram integral are constructed representing the frequency of occurrence of the digital values stored in the data bank. A low point and an edge point are identified from the histogram and integral, and based on the type of radiographic examination selected, are used with appropriate constants and algorithms to calculate a maximum and minimum value. Values lower than the minimum are replaced within a minimum, and values higher than the maximum are replaced by the maximum. The new range of values are mapped using the appropriate gray scale transfer function to a set of values displayed on the display medium.
Patent CA-2284089-A1 (CA)
Title: Method for inducing and determining maturity in conifer somatic embryos
Inventor: BLACKMAN SHEILA A
IPC: G01N33/50
Filed: 1998-04-21
Abstract: The invention concerns measurement of sucrose series oligosaccharides, particularly sucrose, raffinose, and stachyose, and the dehydrin group proteins, in conifer somatic embryos as a measure of their biochemical maturity and readiness to germinate. The information gained is useful for evaluation of the effectiveness of the culture media, particularly that used for the development of the cotyledonary embryo stage. Somatic embryos having elevated levels of the oligosaccharides have been shown to have improved germination, especially those in the genus Pinus. The invention is also directed to conifer somatic embryos having elevated levels of sucrose series oligosaccharides and dehydrin group proteins.
Patent CA-2284739-A1 (CA)
Title: Desmodromic mechanism
Inventor: BAJULAZ ROGER
IPC: F16H25/08
Filed: 1998-03-10
Abstract: The invention concerns a desmodromic mechanism comprising: a) means for transmitting (13) motion connected to an intermediate element (4, 5) and supported by it; b) a primary cam (2) in permanent contact with each of the transmitting means (13); and c) a secondary cam (11, 12) in permanent contact with each of the transmitting means (13). This mechanism is characterised in that the transmitting means (13) have smooth contact surfaces with the cams (2; 11, 12) in such a way that they ensure a permanent and simultaneous contact with the primary (2) and secondary (11, 12) cams; the primary cam (2), the secondary cam (11, 12) and the intermediate element (4, 5), are assembled to one another so as to compulsorily move in rotation and/or linearly relative to one another and at differential speeds invariable for all the positions of the mechanism.
Patent CA-2286752-A1 (CA)
Title: Implant system
Inventor: HANSSON STIG
IPC: A61C8/00
Filed: 1998-04-21
Abstract: A dental implant system comprising a fixture (301; 401; 501) for implantation in bone tissue (312, 314; 512, 514) of the maxilla or mandible by displacement thereof in a forward direction, the fixture having a forward end, a rearward end (330;  430; 530), and an outer surface (305; 405; 505) which extends between the forward and rearward ends and which forwardly of a predetermined position (307; 407; 507) on the outer surface is adapted for interlocking with bone tissue of the maxilla or mandible;  and a superstructure (402) for mounting on the fixture, the superstructure having a forward end for interfacing with the rearward end of the fixture, the forward end of the superstructure and the rearward end of the fixture each presenting interfacing surfaces for interfacing with one another.  The rearward end of the fixture and the forward end of the superstructure are so contstructed and dimensioned that a predetermined interfacing surface of the superstructure (423) is able to interface in the forward direction with a predetermined interfacing surface of the fixture (311; 409; 525) which is at a level which is disposed forwardly of the predetermined position on the outer surface. A more favourable stress distribution in the bone tissue adjacent the fixture results.
Patent CA-2287070-A1 (CA)
Title: Synthetic fiber rope
Inventor: DE ANGELIS CLAUDIO
IPC: D07B1/02
Filed: 1999-10-21
Abstract: With reference to a synthetic fiber rope consisting of load-bearing aramide fiber strands (9, 10, 11) laid together in parallel in concentric layers of strands (14, 16) it is proposed to have an intersheath (13) with sheath surfaces adapted to the external contours of the adjacent layers of strands. According to the invention, by positively bonding the inner and outer layers of strands a higher torsional rigidity is achieved as well as a rope structure of the stranded rope which is less susceptible to twisting. Furthermore, the elastic intersheath (13) between the layers of strands (16, 21) serves to protect the strands (10, 11, 12) against abrasion and assists in transmitting torque within the rope (1) over a large area.
Patent CA-2288425-A1 (CA)
Inventor: HA JAE-KI
IPC: H05B6/68
Filed: 1999-11-03
Abstract: A microwave detecting device outputs a first predetermined voltage in accordance with the presence/absence of microwave in a waveguide. A microcomputer inputs the first predetermined voltage, outputs a second predetermined voltage in accordance with the level of the first predetermined voltage, then detects the voltage of an input port of the first predetermined voltage by applying the second predetermined voltage to the input port of the first predetermined voltage, and displays the operational status of the microwave detecting section through a display section in accordance with the voltage detected from the input port. The microwave detecting section includes a diode sensor, which is connected between the waveguide and the input port of the microcomputer in a forward direction to output the first predetermined voltage in accordance with the presence/absence of the microwave in the waveguide. The microcomputer may further include a check button for applying a check signal to the microcomputer, and then the microcomputer outputs the second predetermined voltage in accordance with the inputted check signal.
Patent CA-2292210-A1 (CA)
Inventor: MCCLEAN CRAIG E
IPC: B65D47/26
Filed: 1999-12-15
Abstract: A dispenser package for fluent products such as cosmetics and lotions that includes an integrally molded plastic container having a flexible body with a sidewall, a closed bottom, and a top wall having a dispensing opening offset from the axis of the container body. A closure has a base wall and a peripheral skirt. In some embodiments of the invention, the closure is rotatably mounted on the container body, and has a dispensing opening in the closure base wall for selective registry with the dispensing opening in the top wall of the container body. Detent elements are provided on the closure and container body for selectively locking the closure in open and closed positions. In alternative embodiments, the closure includes a flip-top hinged to the base wall, with a plug extending therefrom for selectively opening and closing the dispensing opening in the container body top wall.
Patent CA-2292313-A1 (CA)
Inventor: TANAGLIA TIZIANO
IPC: C08F8/50
Filed: 1999-12-15
Abstract: Process for the reduction of the molecular weight of a polymeric material selected from EPM copolymer and EPDM terpolymer and relative mixtures, which comprises the treatment of the polymeric material with at least one hydroperoxide.
Patent CA-2292749-A1 (CA)
Inventor: GRANGER MAURICE
IPC: A47K10/36
Filed: 1998-06-08
Abstract: A dispensing apparatus including an adjusting device which ensures constant pressure of a reel supported on a spindle. The device is associated with reel-holder arms having resilient flexibility, rails forming a slide being arranged between side wings of a housing and the reel-holder arms to allow limited sliding movement of sliders floating on the rails with elastic capacity for controlled and adapted movement to enable paper material of the reel to be maintained constantly stretched on the spindle as material is depleted from the reel.
Patent CA-2292879-A1 (CA)
Title: Composition for prophylaxis and/or treatment of dry eye syndrome comprising vitamin d
Inventor: KITA KIYOSHI
IPC: A61K31/59
Filed: 1997-06-10
Abstract: Ophthalmic compositions for preventing and/or treating conjunctival/corneal xerosis for ophthalmic topical use containing as the active ingredient at least one compound selected from the group consisting of vitamin D, activated vitamin D and activated vitamin D analogues.
Patent CA-2294182-A1 (CA)
Title: Construction kit made of concrete paving stones
Inventor: GEIGER PETER
IPC: E01C5/06
Filed: 1998-04-22
Abstract: The invention relates to a construction kit made of concrete paving stones comprising substantially prismatic stone bodies of a uniform height and upright lateral surfaces.  A plurality of stone paving stones (2) arranged in rows and having the same width in addition to the same or different lengths can be placed manually or placed by means of a machine with continuous or offset joints in said joint areas.  A plurality of rows of paving stones that are arranged next to each other in a parallel position is used to form a rectangular or square packet that can be placed using a machine. The paving stones (2) have side surfaces (4) which have head pieces (2') that are defined by a wavy line along part of their height and base pieces (2") in sections, comprising domed areas (5) or projections jutting out laterally in relation to the head pieces (2') extending along another part of their height. When the packets are assembled for placement in the vicinity of the end stones that make up a row of paving stones, they form a line of continuous joints or provide substantially winding-shaped joints (7) if so desired by replacing different sized end stones from adjacent packets that have been moved towards each other.
Patent CA-2294659-A1 (CA)
Title: Fault tolerant computer system
Inventor: NAGOYA MITSUGU
IPC: G06F11/20
Filed: 2000-01-10
Abstract: A fault tolerant computer system is provided which can immediately detect that its main computer is down and which can accurately pinpoint the point where the processing is suspended, without delaying the processing which the computer should originally execute. The fault tolerant computer system has: the main computer; an auxiliary computer for normally virtually executing the same processing as that executed by the main computer; a communication element connected to an object, the communication element being a boundary scan element; and a switch unit for switching connection between the communication element and either the main computer or the auxiliary computer.      The switch unit switches the connection in accordance with the presence or absence of a clock signal supplied from the main computer to the communication element.
Patent CA-2295789-A1 (CA)
Title: Silica-filled diene-based rubbers containing tin organoacid salt compounds
Inventor: COHEN MARTIN PAUL
IPC: C08L9/06
Filed: 2000-01-14
Abstract: The present invention relates to a composition and a method of processing a composition containing (a) 100 parts by weight of an elastomer containing olefinic unsaturation selected from the group consisting of conjugated diene homopolymers and copolymers and from copolymers of at least one conjugated diene and aromatic vinyl compound; (b) from 10 to 150 phr of a silica; (c) from 0.1 to 15 phr of a sulfur containing organosilicon compound of the formula Z-Alk-S n-Alk-Z      I   in which Z is selected from the group consisting of   and   where R1 is an alkyl group of 1 to 4 carbon atoms, cyclohexyl or phenyl;      R2 is alkoxy of 1 to 8 carbon atoms, or cycloalkoxy of 5 to 8 carbon atoms;      Alk is a divalent hydrocarbon of 1 to 18 carbon atoms and n is an integer of 2 to 8; and (d) from 0.1 to 10 phr of a tin organoacid salt selected from the group consisting of compounds of the formula   and   where R3 and R4 are independently selected from the group consisting of alkyls having from 1 to 20 carbon atoms, alkenyls having from 1 to 20 carbon atoms and aryls and alkaryls having from 6 to 20 carbon atoms.
Patent CA-2299492-A1 (CA)
Title: Wheel chair storage apparatus of car
Inventor: KAMEDA FUJIO
IPC: A61G3/02
Filed: 2000-02-24
Abstract: A wheel chair storage apparatus stores the wheel chair of a physically handicapped in a folded state in a storage space arranged on the roof of a car. The apparatus comprises a main body including a storage section for storing the folded wheel chair; a fitting means for fitting the main body to the roof of the car; slider movable back and forth between the main body and a position located above a doorway of the car; a lift means arranged on the lift for lifting the wheel chair from said doorway; a wheel chair folding means interlocked with said lift means for folding the wheel chair being lifted by said lift means; a wheel chair holder for folding said folded wheel chair; and an attitude modifying means for modifying the attitude of the wheel chair so as to make it adapted to storage by rotating the wheel chair holder with said wheel chair.
Patent CA-2301240-A1 (CA)
Inventor: HOLM CARL DAVID
IPC: E04H17/20
Filed: 2000-02-28
Abstract: A barricade post, removable and collapsible for vehicular tragic restriction.      This invention, with its novel base assembly allows the barricade post assembly to be removed from its normally permanently fixed position to the ground, or to be utilized as a collapsing barricade post which can be driven over. A cover assembly provides enhanced security and weather protection for the barricade post assembly.
Patent CA-2301636-A1 (CA)
Inventor: CAUBLE DAVID F
IPC: D06L1/00
Filed: 1998-08-27
Abstract: A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid dry-cleaning composition comprises a mixture of carbon dioxide, water, a surfactant, and an organic co-solvent. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried out at ambient temperature. The surfactant is preferably one that does not contain a CO2-philic group. The organic co-solvent is preferably an alkane and has a flash point above 140 ~F.
Patent CA-2301763-A1 (CA)
Title: Trelliswork modular scaffolding system
Inventor: MERKEL GERALD
IPC: E04G7/30
Filed: 1998-08-18
Abstract: The invention relates to a scaffolding system or scaffolding used for various tasks in various areas of application, comprising tubular columns and horizontal and/or diagonal crossbars. One or more scaffolding knots are arranged on each tubular column and placed above each other at a distance from each other. Connecting elements engage with said knots. The invention is characterized in that in the case of modular scaffolding with cuneiform niches or scaffolding with cuneiform couplings of knots and connecting elements, the cuneiform coupling elements arranged on the ends of the interspacing crossbars engage with the cuneiform niches of varying geometry. In one preferred embodiment, the desired amount of slack in relation to radial rotation of the cuneiform coupling element in said niche is achieved by causing the side parts of the niche to extend away from the tubular column towards each other as opposed to parallel to each other. As a result, the cross section of the cuneiform niche is shaped like a wedge with a truncated tip from the tubular column onwards. The horizontal connecting elements are mounted via above-mentioned linkage of the cuneiform niche and the cuneiform coupling element. The diagonal crossbars are mounted by means of cuneiform heads which are arranged on each side of a diagonal brace and are slid over the respective cuneiform niche. The cuneiform head of the vertical diagonal brace which is slid over the cuneiform niche of the tubular column via the receiving opening located in the small front face lies in a flat position, when fitted, in the knot area of the tubular column by virtue of a hollow moulding on the narrow front face.
Patent CA-2302083-A1 (CA)
Inventor: HANNU DONALD W
IPC: B05B13/06
Filed: 2000-03-27
Abstract: An apparatus for coating an interior surface of a conduit. The apparatus has a center rod with a substantially square cross-section that extends axially along the interior surface of the conduit. An index carriage slidably engages the substantially square cross-section of the center rod so that the index carriage maintains a fixed rotational orientation relative to the center rod. An index motor having a variable index position is carried by the index carriage. A coating device for coating the interior surface of the conduit is rotatably attached to the index carriage and connected to the index motor. As such, the coating device has an elevation position that corresponds to the index position of the index motor. A drive motor carried by a drive carriage propels the drive carriage longitudinally along the center rod.      Generally, at least one intermediate carriage that slidably engages the substantially square cross-section of the center rod translates motion of the drive carriage to the index carriage so that the index carriage, and hence the coating device, moves longitudinally along the center rod.
Patent CA-2303103-A1 (CA)
Title: Biased seal assembly for high pressure fluid pump
Inventor: TREMOULET OLIVIER L JR
IPC: F04B53/16
Filed: 1998-09-17
Abstract: A method and apparatus for biasing a seal assembly in a high pressure fluid pump. In one embodiment, the fluid pump includes a plunger which reciprocates within a high pressure cylinder a seal carrier disposed about the plunger, and a seal supported by the seal carrier and sealably engaged with the plunger. The seal may be biased toward the seal carrier with a spring engaged by a collar within the cylinder and may include a flange that engages the spring to restrict lateral motion of a spring relative to the reciprocating plunger. The flange may engage an inner and/or an outer surface of the spring. Where the spring is a coil spring, the flange may be continuous around the circumference of the spring or may include a plurality of spaced apart projections located around the circumference of the spring.
Patent CA-2304093-A1 (CA)
Title: Hydrogel ameliore pour chirurgie reparatrice
Inventor: BORLAND KERMIT M
IPC: A61L27/00
Filed: 1998-09-18
Abstract: L'invention concerne des compositions conçues pour être implantées chez l'animal et contenant un polymère biocompatible et biodégradable dont la réticulation crée un hydrogel. Dans un mode de réalisation préféré, ce polymère est réticulé par des ions multivalents, de préférence, par un sel soluble d'un ion multivalent et un sel passablement soluble d'un ion multivalent, ces constituants étant combinés en un mélange constituant un hydrogel injectable partiellement durci, la consistance de ce mélange permettant d'implanter ce dernier chez l'animal, dans lequel il forme in situ un hydrogel totalement durci. Ce mélange contient également, de préférence, un agent séquestrant en concurrence avec le polymère biocompatible afin de fixer l'ion multivalent de réticulation. Cette composition peut contenir des cellules vivantes ou non. Elle concerne également des procédés servant à implanter cette composition chez l'animal sous forme éventuelle d'implant contenant des cellules vivantes.
Patent CA-2305862-A1 (CA)
Title: Dispositif de recolte de la seve
Inventor: DUMAS MARTIN
IPC: A01G23/14
Filed: 2000-04-24
Abstract: Une méthode de cueillette de sève comprenant les étapes de creuser un canal circulaire à travers l'écorce, installer un anneau d'encrage dans le canal circulaire, l'accrocher par des pointes à l'aubier de l'arbre et prélever la sève à l'intérieur de l'anneau. L'anneau d'ancrage 20 est un corps cylindrique comprenant des pointes acérées 36 pour ancrer à l'aubier 22 et une bague externe 40 comprenant des pointes de bague 46 disposées en circonférence et pour ancrer à l'écorce 24. Un creux circulaire disposé sur la face extérieure 30 retient un crochet à chaudières. Un bout plein 54 peut être rattaché de façon amovible au bout de sortie 34 du corps cylindrique, un trou d'éjection 58 disposé dans la partie supérieure du bout plein pour garder l'entaille mouillée par le niveau d'eau. L'entaille est creusée dans le périmètre de l'anneau et l'ouverture colmatée par un tampon de ouate à l'intérieur. L'anneau d'ancrage peut être connecté à une tubulure par une union rapide 126.</SDOAB >