baber/WOPTO huggingface dataset:
Patent CA-2366136-A1 (CA)
Inventor: MELLONI ANDREA
IPC: G02F1/01
Filed: 2001-12-21
Abstract: An optical intensity modulator for high-speed RZ and NRZ data modulation based on a balanced three-arm Mach-Zehnder interferometer. The three arms are joined at the input and output sides of the device by three-way couplers. The input coupler is structured to couple approximately equal powers into the first and third arms and no more than 50% power into the second arm. In the straight sections of the arms, there is arranged an AC electrode structure for applying an RF  modulation signal and a DC electrode structure for biasing the device at a working point. The AC electrode structure is arranged so that an applied modulation signal induces a negative phase shift (-.DELTA..PHI.) in the first arm in relation to the second arm and a positive phase shift (+.DELTA..PHI.) in the third arm in relation to the second arm. Large notch widths of up to 12 times the notch width of a conventional two-arm Mach-Zehnder modulator are achievable. The device is characterized by high tolerance to variations in the RF modulating signal and the power splitting ratio into the interferometer arms. The intensity transfer function for a 25:50:25 power split between the arms is comparable to that of two cascaded balanced two-arm Mach-Zehnder interferometers, but has the advantage of being a one stage device, which is shorter and requires only one RF drive circuit.
Patent CA-2366338-A1 (CA)
Title: Management of user-defined routine libraries in database environments
Inventor: WILSON GEORGE M
IPC: G06F9/40
Filed: 2001-12-21
Abstract: Library management for libraries of user-defined routines in a database system. Libraries are stored in a long-term storage device and loaded into working memory in t he database system when routines in the libraries are to be executed. An unload thread is defin ed to carry out the process of unloading libraries from the working memory when such libraries are inactive. The unload thread becomes active on a defined timing interval. The unload thread accesses a ha sh table and a most recently used list to determine which of the loaded libraries is inactive an d which of the libraries ought to be unloaded. The hash table maintains information as to which libraries have been accessed in the most recent past defined timing interval. The size of the most recent ly used list can be defined such that all libraries associated with the list are retained in working memory.
Patent CA-2366505-A1 (CA)
Title: Measuring and controlling the flow of flowable materials
Inventor: ANDREWS EVAN WILLIAM
IPC: G01F1/76
Filed: 2000-03-24
Abstract: A method of determining an inlet flow rate (F inlet) of a flowable material including passing an inlet stream of flowable material through a chamber (20) having an outlet aperture (100); measuring a first rate of change of quantity of material in the chamber (20) when the material is entering at said inlet flow rate; measuring a second rate of change of quantity of material in the chamber (20) when no material is entering the chamber (20); and calculating the inlet flow rate (F inlet) from said first and second rates, wherein both rate measurements are made while the whole of the outlet aperture (100) of the chamber (20) is occupied by the flowable material.
Patent CA-2366773-A1 (CA)
Title: Adjustable spinal tether
Inventor: SHERMAN MICHAEL C
IPC: A61B17/00
Filed: 2000-03-22
Abstract: An improved apparatus is provided to allow for an adjustable length tether (10) for use in the spine and other parts of the body. The tether (10) comprises an artificial strand (11) with an eyelet (23) formed in one end (13), the other end (15) being looped through the eyelet (23). The other end (15) is then secured with respect to the eyelet (23) by a crimp (50), the excess length being cut off after the length of the tether (10) has been given an appropriate tension. Alternatively, the eyelet end (13) may be formed around a grommet (123). The crimp (50) may be separate from the grommet (123) or a part of the grommet (123). The mechanism by which the length is adjusted in some cases will take advantage of the shape memory properties of alloys such as nickel-titanium.
Patent CA-2366849-A1 (CA)
Title: Portable electronic apparatus
Inventor: PHILLIPPS JOHN QUENTIN
IPC: H04N1/00
Filed: 2000-01-25
Abstract: A charge coupled device camera (7) is incorporated into one wing (2) of a portable personal computer (1). A document (16), such as a business card, is  placed on the other wing (3), secured by means of clips (15a, 15b, 15c, 15d)  or transparent ribbons (125a, 125b, 125c, 125d) and photographed. Blurring o f the captured image is reduced because the camera and the document are mounte d to the same substrate. Also, optimal positioning of the document is achieved  more quickly and easily using this arrangement than using a separate stand t o mount the document.
Patent CA-2368588-A1 (CA)
Inventor: LIN LIZ
IPC: B62B3/12
Filed: 2002-01-18
Abstract: A folding element for a golf cart front wheel includes a pair of parallel connecting parts, a positioning member and a pulled button.      The connecting parts stick out from a supporting base at a lower end of the cart frame. One of the connecting parts has a pivotal hole and several holes spaced out around the pivotal hole in a circular pattern.      The positioning member is connected to a support fork of the front wheel and has a through hole lengthwise formed therein and holes spaced out around the through hole to correspond to the circularly-arranged holes. The positioning member is turnably positioned between the connecting parts with a pivotal rod being connected to the connecting parts and passing through the through hole of the positioning member. The pulled button has fixing poles and a spring biasing the same toward the positioning member for the fixing poles to engage the circularly-arranged holes. The pulled button can be pulled against the spring for the fixing poles to separate from the circularly-arranged holes of the positioning member so that the positioning member combined with the front wheel can be turned about the pivotal rod between a stretched in-use position and a folded not-in-use one where the golf cart has reduced size.
Patent CA-2368749-A1 (CA)
Inventor: BECKER MICHAEL HEINRICH
IPC: B01J37/00
Filed: 2000-03-10
Abstract: The present invention relates to a method for determining the enantioselectivity of kinetic racemate resolutions and of asymmetrical reactions of prochiral compounds carrying enantiotopic groups. According to the inventive method, isotopic substrates are used in such a way that an isotope-specific detection system, e.g. an ESI mass spectrometer, can determine the quantity of the reaction products. The method can be combined to an automated sampling and can thus be used for high throughput screening. The enantioselective material conversions relevant in the process can be induced by chiral homogeneous or heterogeneous catalysts, biocatalysts or stoichiometric quantities of optically active agents.
Patent CA-2369474-A1 (CA)
Title: Natural gas barbecue tank
Inventor: AGARSKY STEVE
IPC: F17C1/00
Filed: 2002-02-04
Abstract: My invention is a natural gas tank for barbecue.      The sizes would vary to size of barbecue.      Gas stations have refill for cars, and the barbecue tank would have the same fittin~ for refill.
Patent CA-2369806-A1 (CA)
Title: Process for making calcium chlorides
Inventor: COCHRAN KEITH D
IPC: C01F11/24
Filed: 2002-01-31
Abstract: A new process for producing calcium chloride and other metal halides from the carbonates, bicarbonates, oxides of these metals. The process utilizes the discovery that hydrogen halides, when used in a true or conventional fluidizing medium in shallow beds of the aforementioned solids at moderately elevated temperatures in a continuous counter current process results in the conversion of the metal carbonates, bicarbonates, and oxides, into metal halides and carbon dioxide gas and/or water vapor. The process is carried out in a series of true or conventional fluidized beds preferable but not necessarily arranged in a vertical configuration so that the solids flow downward due to the fluidized process and the hydrogen halides flow counter currently in an upward direction producing metal halides at the bottom and pure carbon dioxide gas and/or water vapor at the top.
Patent CA-2370163-A1 (CA)
Title: Dispositif de raccordement et d'accrochage de surete pour elements tubulaires, notamment pour civiere
Inventor: CARLETTI ENRICO
IPC: F16B7/22
Filed: 2000-04-28
Abstract: Ce dispositif de raccordement et d'accrochage de sûreté pour deux éléments tubulaires (2a, 2b), notamment pour civière, qui comprend un élément femelle (3) dont une extrémité est raccordée au premier élément tubulaire (2a) et dont l'autre extrémité libre comporte un siège (5), traversé transversalement par un pivot d'accrochage (4), et un élément mâle (6) dont une extrémité est raccordée au second élément tubulaire (2b) et dont l'autre extrémité libre comporte une patte de fixation (7) pouvant s'insérer détachable dans le siège (5) de l'élément femelle (3), la tête de cette patte de fixation (7) comportant un évidement (8) prévu pour loger partiellement le pivot d'accrochage (4), comprend aussi un crochet (10) s'articulant sur l'élément mâle (6) pouvant s'insérer détachable, dans le cas d'une opération d'accrochage (A) des éléments tubulaires (2a, 2b), dans une encoche (9) ménagée longitudinalement dans la patte de fixation (7) et ce, afin de fermer partiellement la partie d'ouverture de ladite patte (7) autour du pivot d'accrochage (4). Le dispositif comprend également un crochet de sûreté (15) venant s'articuler sur l'élément femelle (3) et dont l'extrémité accrochante est conçue pour entrer dans un creux (11) de la patte de fixation (7) lors de l'opération d'accrochage (A).
Patent CA-2370242-A1 (CA)
Inventor: HILKER DIETER H
IPC: B26F3/00
Filed: 2002-01-31
Abstract: A movable water jet edge trimmer has an integral trim chute attached to a cutting support plate for the trimmer. The support plate has a cutting aperture and a series of suction apertures located inboard of the outside edge of the travelling web for supporting the web against the support plate as a water jet passes out through the cutting aperture away from the support plate and through the web. The support plate has a curved surface located downstream and outboard of the cutting aperture which curves into a trim chute opening of a trim chute. Negative pressure is applied from the trim chute to the trim chute opening to draw any strip of material cut from the edge of the web over the curved surface and into the trim chute. The trim chute opening has a first edge that extends substantially parallel to the direction of the travel of the web and is substantially aligned and slightly inboard of the cutting aperture whereby the trim chute passes into the trim chute opening and a small portion of the edge of the web passes over the opening in the trim chute. In applications where the web comprises a paper of a lighter basis weight, an additional second support plate is utilized spaced from the first support plate on the opposite side of the web from the first support plate so as to sandwich the web between the two support plates.
Patent CA-2370923-A1 (CA)
Title: A method for extracting copper from an aqueous solution
Inventor: NYMAN BROR
IPC: B01D11/04
Filed: 2000-05-04
Abstract: The invention relates to a method for extracting copper in liquid-liquid solvent extraction from aqueous solution with a high sulphate content, by raising the viscosity of the extraction solution and by dispersing the aqueous solution into drops, achieving a dense drop aggregation. The viscosity of the extraction solution may be raised either by increasing the content of the actual extractant, the extraction reagent, in the extraction solution or by using a diluting agent with a higher viscosity than that of the diluting agent normally used. By raising the viscosity of the extraction solution the mixing durability of the extraction dispersion can be increased and resulting of that the amount of residual drops is decreased. Other advantages are that the extraction solution flow of the extraction process decreases in relation to the flow of the aqueous solution acting as the copper source and that the size of the extraction equipment needed is reduced.
Patent CA-2373520-A1 (CA)
Title: Reduction of quantization-induced block-discontinuities in an audio coder
Inventor: MANTEGNA JOHN
IPC: G10L19/02
Filed: 2000-05-25
Abstract: A method and system for reduction of quantization-induced block-discontinuities arising from lossy compression and decompression of continuous signals, especially audio signals. One embodiment encompasses a general purpose, ultra-low latency, efficient audio codec algorithm. More particularly, the invention includes a method and apparatus for compression and decompression of audio signals using a novel boundary analysis and synthesis framework to substantially reduce quantization-induced frame or block-discontinuity; a novel adaptive cosine packet transform (ACPT) as the transform of choice to effectively capture the input audio characteristics; a signal-residue classifier to separate the strong signal clusters from the noise and weak signal components (collectively called residue); an adaptive sparse vector quantization (ASVQ) algorithm for signal components; a stochastic noise model for the residue; and an associated rate control algorithm. The invention further includes corresponding computer program implementations of these and other algorithms.
Patent CA-2376045-A1 (CA)
Title: Proteases variantes de la subtilisine par substitutions acide amine dans des regions definies de l'epitope
Inventor: RUBINGH DONN NELTON
IPC: C12N15/57
Filed: 2000-07-11
Abstract: La présente invention concerne des variantes de protéases ressemblant à la subtilisine et présentant une immunogénicité inférieure à celles des protéases correspondantes de type sauvage. L'invention concerne plus particulièrement des variantes comportant une séquence d'acide aminé modifiée remplaçant une séquence d'acide aminé de type sauvage, laquelle séquence modifiée comporte une substitution d'au moins une région de l'épitope. L'invention concerne également, d'une part des gènes mutants codant de telles variantes, et d'autre part des compositions de produits d'hygiène domestique est d'hygiène corporelle comprenant de telles variantes.
Patent CA-2377192-A1 (CA)
Title: Hops acid antibacterial compositions
Inventor: KING WILLIAM
IPC: A01N65/00
Filed: 2000-07-27
Abstract: An antibacterial composition of matter comprising: a) one or more hops acid or hops acid derivatives or hops resin or hops resin derivatives; and b) one or  more food grade surfactants, surface active agents, chelating agents, antioxidants, and/or organic acids is provided.
Patent CA-2377244-A1 (CA)
Inventor: CASSET FLORENCE
IPC: G06F17/50
Filed: 2000-08-02
Abstract: L'invention concerne des méthodes de conception et de synthèse d'une molécule capable de reproduire l'activité d'une molécule parente. Lesdites méthodes consistent notamment à identifier, grâce à l'outil informatique, des groupes chimiques d'une molécule parente en vue de leur inclusion dans un mimétique ; à concevoir un mimétique en tenant compte de la structure de pliage du parent ; à concevoir un mimétique sur la base d'une relation géométrique existant entre les groupes chimiques de la molécule parente ; à concevoir un mimétique sur la base d'une simulation de dynamique moléculaire dudit mimétique ; et à procéder au criblage de mimétiques potentiels sur la base de cette simulation de dynamique moléculaire.
Patent CA-2377396-A1 (CA)
Inventor: COHEN THOMAS S
IPC: H01R13/658
Filed: 2000-06-21
Abstract: A modular connector system for interconnecting printed circuit boards includes a first connector having an insulative housing supporting an array of blade-shaped contacts and a second connector having a complementary array of beam-shaped contacts. Preferably, each beam-shaped contact includes substantially independent coplanar beams which, in use, contact a common surface of a respective blade-shaped contact to provide multiple points of contact. The second connector includes a plurality of modules stacked in parallel. Each module includes a shield plate having an insulative receptacle attached at one end and a row of signal conductors, each having a beam-shaped contact at one end. Each insulative receptacle has a first side in which cavities are provided to receive the beam-shaped contacts of the signal conductor. Each insulative receptacle further includes a second, opposite side in which holes are formed in substantial alignment with the cavities for receiving the blade-shaped contacts of the first connector.
Patent CA-2377762-A1 (CA)
Title: Sulfonamidomethyl phosphonate inhibitors of .beta.-lactamase
Inventor: DELORME DANIEL
IPC: A61P31/04
Filed: 2000-07-05
Abstract: The intention relates to bacterial antibiotic resistance and, in particular, to compositions and methods for overcoming bacterial antibiotic resistance. The invention provides novel .beta.-lactamase inhibitors, which are structurally unrelated to the natural product and semi-synthetic .beta.-lactamase inhibitors presently available, and which do not require a .beta.-lactam pharmacophore. The invention also provides pharmaceutical compositions and methods for inhibiting bacterial growth.
Patent CA-2379480-A1 (CA)
Inventor: NAGHI DAVID
IPC: F21V33/00
Filed: 2000-06-02
Abstract: An illumination device for illumination of a portable electronic device in a flexible arm, plugs into and is powered through a utility power jack of a portable electronic device in a manner that power is derived from the port of the portable electronic device to power the illumination device. The illumination device includes a housing, a reflector, a diffuser or a magnifier, and a dimer to control the light intensity given off by the device.
Patent CA-2379694-A1 (CA)
Title: Extending synchronous busses by arbitrary lengths using native bus protocol
Inventor: TRUEBENBACH ERIC L
IPC: G01R31/317
Filed: 2000-07-10
Abstract: A bus extender for extending synchronous busses of limited length provides convenient access to bus cards in ATE systems. The bus extender plugs into a synchronous bus, for example, a PCI  bus, and a cable carries bus signals to a remote location, where a remote card is engaged. The bus extender supports both initiator (master) and target (slave) modes of the remote card, and communicates with the remote card in the native protocol of the bus. The bus extender operates without requiring separate control from the bus. For example, the bus extender does not require its own device driver. The bus extender includes a bus snooper circuit that monitors bus transactions with the remote card and stores configuration data. The bus snooper circuit responds locally on behalf of the remote card to bus requests that require rapid responses. The bus extender further includes a state machine that copies the stored configuration data to the remote card to reset the remote card without requiring a reset of the bus. A hold-off circuit is also included within the bus extender, which determines a hold-off interval required for return signals from the remote card to settle. The hold-off circuit receives the return signals applies them to the bus after the hold-off interval elapses.
Patent CA-2380255-A1 (CA)
Inventor: MCANULTY NICHOLAS PAUL
IPC: G09F3/20
Filed: 2002-04-04
Abstract: A message holder is disclosed comprising a sheet of pliant material whose front surface comprises a first portion at one end, a second portion at the other end, and an intermediate portion, and whose rear surface comprises a first portion at one and a second portion at the other end. With the exception of the second portion of the front surface which is reserved far displaying a desired message, the various portions of the holder are attachable to one another in various ways with all or at least a portion of the holder wrapped around a pipe, cable or other elongated structure. Differing configurations permitting a message to be displayed are possible and users are able to choose the configuration they prefer or the configuration that is best suited for a given task. As well, two or more of such holders may be connected with each other to display two or more messages in close proxity.
Patent CA-2381674-A1 (CA)
Title: Method and apparatus for determining positioning of mobile machines relative to utility lines
Inventor: TUCKER LAYNE DANIEL
IPC: G01C15/00
Filed: 2002-04-12
Abstract: A method for determining positioning of mobile machines relative to utility lines. A first step involves mounting on a mobile machine a global positioning apparatus. A second step involves mounting on the mobile machine a processing unit with a display. The processing unit has stored in memory at least one geographical map depicting positioning of at least one utility line. A third step involves transferring data received from the global positioning apparatus to the processing unit and displaying on the display the positioning of the mobile machine relative to the at least one utility line on the at least one geographical map.
Patent CA-2382213-A1 (CA)
Title: Round ice confectionery products and method for making same
Inventor: MARCHON JEAN-MICHEL
IPC: A23G9/00
Filed: 2000-07-06
Abstract: The invention concerns a round ice confectionery product having uniform roundness, with complete spherical shape, substantially having no peak, angle or traces of forming tool, in particularly ball-shaped with an appearance similar to a ball home-made with a spoon, produced by cold process extrusion-forming.
Patent CA-2383508-A1 (CA)
Inventor: GROTHE HORST
IPC: B22D11/053
Filed: 2000-08-11
Abstract: The invention relates to a device for the continuous casting of metal that consists of a lifting platform (3a, 3b) that is driven by a drive aggregate (4a, 4b) so as to oscillate, and that further comprises a die for continuous casting that is received by the lifting platform and a stationary supporting structure (2a, 2b) that is provided with guide elements for receiving the lifting platform. The aim of the invention is to improve the guide elements of the supporting structure. To this end, the guide elements are configured as an elastic spring system (61a to 64a, 61b to 64b). Said spring system consists of two spring legs (201, 202; 301, 302) that are at angles with respect to each other and that extend in a direction perpendicular to the direction of oscillation. The two spring legs are bifurcated and the overlapping upper and lower ends (211a, 211b, 212a, 212b; 311a, 311b, 312a, 312b) of the two spring legs represent the support surface for the elevated platform (3a, 3b) or the connecting surface with the stationary supporting structure (2a, 2b). The spring system, in addition to the force in the direction of oscillation, also compensates interfering forces in the direction perpendicular to the direction of oscillation in order to establish a load balance.
Patent CA-2384870-A1 (CA)
Title: Cover for aerobic treatment of biodegradable matter
Inventor: HOCHREIN KILIAN PETER
IPC: B32B5/18
Filed: 2000-09-21
Abstract: A cover for the contained aerobic treatment of biodegradable matter, especially for box composting of organic wastes, is described. The cover is a laminate of a porous polymeric layer adhered to a woven or knit or nonwoven fabric, in which the laminate has a specific air permeability and resistance to water vapor transmission (RET).