baber/WOPTO huggingface dataset:
Patent CA-2191403-A1 (CA)
Title: Method and apparatus for performing data compression
Inventor: BARBIR ABBULKADER OMAR
IPC: H03M7/30
Filed: 1996-11-27
Abstract: A method and apparatus are disclosed for performing data compression on raw uncompressed data. The method develops a semi-adaptive modeler that sub-divides the length of an input data file into blocks of fixed size. The blocks are then sub-divided into sub-blocks in which the frequencies of the symbols are mapped to occupy the whole frequency space. The modeler is then used to develop a reduced complexity implementation of arithmetic coding, whereby, the time consuming divide operation used in computing the symbols true probabilities is replaced by a simple shift operation. The reduced complexity arithmetic coder is referred to as approximate arithmetic coder. The modeler and the approximate arithmetic coder are then used in a multi-step data compression system that employs a ZL coder. The multi-step method results in high efficiency data compression systems that are ideal for real time operations and are better suited for network communications or data storage systems. The method overcomes many of the difficulties found in the prior art and generally achieves better compression ratios.
Patent CA-2191557-A1 (CA)
Title: Materials handling system
Inventor: SRIDHAR SIDNEY
IPC: B63B27/22
Filed: 1996-04-01
Abstract: A materials handling system for controlling the gravity discharge of material through a discharge opening (33) onto a conveyor (34) comprises a gate (40) extending across the discharge opening (33) and having at least one but preferably a plurality of outlet openings (40.4) therein for the through flow of material from the discharge opening and a feeder deck (60) below the gate (40) having a surface for receiving material discharged from the discharge opening (33) through the gate (40). The feeder deck surface is movable transversely of the discharge opening (33) for controlling the flow of material through the gate (40) and for discharging the material onto the conveyor (34). The materials handling system can be employed for controlling the gravity discharge of material from a plurality of in-line domes (100) or from a plurality of holds (112) of a self-unloading ship (110).
Patent CA-2195312-A1 (CA)
Title: Novel hepatitis c e1 and e2 truncated polypeptides and methods of obtaining the same
Inventor: SELBY MARK
IPC: C12N5/10
Filed: 1995-07-26
Abstract: Novel Hepatitis C E1 and E2 truncated polypeptides and complexes comprising these polypeptides, are disclosed. The polypeptides are C-termally truncated to remove all or a portion of their membrane spanning domains. Hence, the polypeptides are capable of secretion when expressed recombinantly.
Patent CA-2195924-A1 (CA)
Inventor: MACKENZIE ALEXANDER RODERICK
IPC: A61P15/00
Filed: 1997-01-24
Abstract: Compounds of the formula: <CHEM>  wherein: X is O, NH or NR<1>; R<1> is C1-C6 alkyl, C3-C7 cycloalkyl, C3-C7 cycloalkyl(C1-C4)alkyl, aryl or aryl (C1-C4)alkyl; wherein the C1-C6 alkyl group is optionally substituted by fluorine and the C3-C7 cycloalkyl or C3-C7 cycloalkyl(C1-C4)alkyl group is optionally substituted in the cycloalkyl ring by up to two substituents each independently selected from halo, C1-C4 alkoxy or halo(C1-C4)alkoxy; R<2> is phenyl optionally substituted with one or two halo substituents, indolyl or thienyl; R<3> is NH2, -NR<4> SO2(C1-C6 alkyl), -NR<4>SO2 aryl, -NR<4>CO(C1-C6 alkyl), -NR<4>CO aryl or a 5 to 7-membered N-linked cyclic group incorporating W in the ring wherein W is O, NR<5>, CH(OH), CHCO2H, CHN(R<4>)2, CHF, CF2, C = O or CH2; R<4> is H or C1-C6 alkyl; R<5> is H, C1-C6 alkyl, C3-C7 cycloalkyl, C3-C7 cycloalkyl(C1-C6)alkyl, C2-C6 alkanoyl, C4-C8 cycloalkanoyl, C3-C7 cycloalkyl(C2-C6)alkanoyl, aryl CO-, C1-C6 alkyl SO2-, C3-C7 cycloalkyl SO2-, C3-C7 cycloalkyl(C1-C6)alkyl SO2-, aryl-SO2- or (R<6>)2NSO2-, wherein each R<6> is independently H or C1-C4 alkyl or the two groups may be joined to form with the nitrogen atom to which they are attached, a pyrrolidinyl, piperidino, morphlino or piperazinyl group; m is O, 1 or 2 with the proviso that m is not O when W is NR<5>, C=O, or O; and n is an integer of from 1 to 4; are neurokinin receptor antagonists of utility in the treatment of a variety of medical conditions including urinary incontinence, asthma and related conditions.
Patent CA-2196285-A1 (CA)
Title: Contraceptive vaccine
Inventor: DUNBAR BONITA S
IPC: C12P21/08
Filed: 1995-07-31
Abstract: Recombinant zona pellucida proteins having altered, nonnative glycosylation patterns are able to elicit the production of antibodies to natural zona pellucida proteins. Such recombinant proteins and the elicited antibodies can therefore be used in a contraceptive vaccine to prevent pregnancy in humans and animals.
Patent CA-2199087-A1 (CA)
Title: Fiber optic hydrophone having rigid mandrel
Inventor: CAPPI JOHN F
IPC: G02B6/36
Filed: 1997-03-04
Abstract: A fiber optic interferometric sensor for use in a hydrophone system at high pressures includes a reference fiber wrapped around a rigid inner cylinder. A solid layer of compliant material is applied over the reference fiber. The sensing arm of the interferometer is wound over the layer of material applied over the reference fiber. The outer material is sufficiently compliant to provide acoustic sensitivity comparable to that of air-backed hydrophones.
Patent CA-2199369-A1 (CA)
Title: A Unit Packaged Detergent
Inventor: TACK JORIS JOSEF GUSTAAF
IPC: C11D17/04
Filed: 1995-09-01
Abstract: The present invention provides a detergent for automatic dish washing packaged in a film. Said film is made of a water dissolvable material. This material is completely dissolved only after reaching the main wash of the wash cycle.  Therefore, said material prevents that the detergent is precociously dissolved and wasted during the initial rinse cycle of a dish washing machine.
Patent CA-2200390-A1 (CA)
Title: Component
Inventor: SCHWELLINGER PIUS
IPC: B21D26/02
Filed: 1997-03-19
Abstract: An alloy suitable for manufacturing components out of a hollow body by high internal pressure forming contains, in wt. %, Silicon        0.3 to         1.6 Magnesium          0.3 to         1.3 Iron          max. 0.5 Copper        max. 0.9 Manganese     max. 0.5 Vanadium           0.05 to        0.3 Cobalt        max. 0.3 Chromium      max. 0.3 Nickel        max. 0.8 Zirconium     max. 0.3 and other alloying elements, individually at most 0.05, in total at most 0.15, the remainder aluminium.
Patent CA-2200924-A1 (CA)
Title: Interactive data exploration apparatus and methods
Inventor: SRIVASTAVA DIVESH
IPC: G06F17/30
Filed: 1997-03-25
Abstract: A data exploration tool which has a graphical user interface that employs directed graphs to provide histories of the data exploration operations. Nodes in the directed graphs represent operations on data; the edges represent relationships between the operations. One type of the directed graphs is the derivation graph, in which the root of the graph is a node representing a data set and an edge leading from a first node to a second node indicates that the operation represented by the second node is performed on the result of the operation represented by the first node. Operations include query, segmentation, aggregation, and data view operations. A user may edit the derivation graph and may select a node for execution. When that is done, all of the operations represented by the nodes between the root node and the selected node are performed as indicated in the graph. The operations are performed using techniques of lazy evaluation and encachement of results with the nodes. Anothertype of the directed graphs is the subsumption graph, in which an edge leading from a first node to a second node indicates that the second node stands in a subsumption relationship to the first node. If a result of the operation represented by the first node has been computed, the result is available to calculate the result of the operation represented by the second node.
Patent CA-2203405-A1 (CA)
Title: Impedance imaging devices and multi-element probe
Inventor: PEARLMAN ANDREW L
IPC: A61B10/02
Filed: 1995-05-19
Abstract: A multi-element probe for providing an electrical connection to a tissue surface comprising: a plurality of individual conductive sensing elements (62), each having a front portion suitable for contact with the tissue surface, a plurality of conductive elements (51, 52) providing an electrical connection to the respective individual sensing elements and a partition or spacing separating the individual sensing elements such that when the individual probes contact the tissue surface they are substantially isolated from each other.
Patent CA-2204642-A1 (CA)
Title: Paint drying oven with radiant energy floor
Inventor: CROMPTON DAVID W
IPC: B05C9/14
Filed: 1995-11-06
Abstract: An improved paint drying oven (20) for vehicles includes a"hold" zone (15) with a radiant energy generating floor (28). The floor preferably is defined by an inner wall (30) and an outer wall (34) spaced beneath the inner wall. Heated air is passed into the space (60) between the inner and outer walls, and heats the inner wall to a temperature such that it emits radiant energy into the oven (20). The other walls of the oven do not include any heat generating structure, and thus the vehicle (18) is dried entirely by the radiant energy generating floor (28). This invention maintains a relatively constant temperature at the vehicle body (18), thus achieving the main goals of the "hold" zone (15).
Patent CA-2205177-A1 (CA)
Inventor: HANSEN MICHAEL W
IPC: H04N21/854
Filed: 1995-11-14
Abstract: A system (100) for automatically generating a mosaic from a plurality of input images. The system sequentially executes an image alignment process, an editing process, and a combining process such that, from a sequence of images (902), the system automaticallyproduces a seamless mosaic (904) for various applications. Illustrative applications for the mosaic include a mosaic based display system (104) including an image printing system, a surveillance system (108) and a mosaic based compression system (110). The mosaic based display system (104) permits a system user to display, manipulate and alter a mosaic.  The mosaic based compression system(110) exploits the temporal and spatial redundancy in image sequences and efficiently compresses the image information. The compression system (110) can be used for compressing image information for storage in a storage device or can be used for compressing image information for transmission through a band-limited transmission channel. The surveillance system (108) combines the mosaic construction system, the compression system and the display system into a comprehensive system for remote motion detection.
Patent CA-2208251-A1 (CA)
Title: New silicon compounds with sterically hindered cyclic amine functions useful for the light and heat stabilization of polymers
Inventor: KARRER PHILIPPE
IPC: C08L101/00
Filed: 1995-12-08
Abstract: This invention concerns linear, cyclic or branched polyorganosiloxanes with at least three siloxyl units per molecule, including at least one (I) formula functional unit in which: R1 stands for an alkyl radical in C1 to C4 or phenyl; X is a monovalent group containing one (or several) amines, formula (II), where R is a hydrocarbonic group, U = -0 or -NR' - with R' being H or a hydrocarbonic group, Z is a tetra alkyl group -2,2,6,6 piperidinyl, x = 0 and 1; y = 0, 1 and 2; z = 1, 2 and 3; y + z = 3; and a is 0, 1 and 2.  This invention also concerns the use of similar polyorganosiloxanes in polymers to improve their photostabilization.
Patent CA-2208846-A1 (CA)
Title: Preparation of flexible, flame-bondable polyurethane polyether foams having improved adhesion
Inventor: WAGNER KLAUS
IPC: C08G18/40
Filed: 1997-06-20
Abstract: A flexible, flame-bondable polyurethane-polyether block foam is prepared by a process in which at least one diol is added to the block foam.
Patent CA-2211500-A1 (CA)
Inventor: BOISTURE THOMAS B
IPC: B08B3/02
Filed: 1997-07-24
Abstract: A high pressure spraying system is provided using an electromechanical actuator that slowly throttles up a high pressure supply, but quickly dumps pressure should the system be deactivated.  The system is activated and deactivated through triggers in a spray gun, which are coupled through an isolated switching amplifier, through a tie-down circuit, and to an actuator control module which controls the actuator.
Patent CA-2212189-A1 (CA)
Title: Method of preparation of chocolate crumb
Inventor: MILLER VAN
IPC: A23G1/00
Filed: 1996-12-23
Abstract: Chocolate crumb is prepared to be used later in the manufacture of milk chocolate. The present invention provides a process whereby only a portion of the sugar constituent of the chocolate crumb is first caramelized by being hydrated with a portion of the milk which is to be utilized in the process.  That hydrated sugar with the milk is heated so as to caramelize the sugar and so as to substantially drive off the water constituent of that first portion of the milk. The temperature and the length of time for which the heating continues will govern the degree of caramelization. The then caramelized slurry batch is added to the remainder of the milk to be used, and dried so as to drive off the remaining water carried into the mix by the additional milk.  That dried mix is thereafter mixed with anhydrous cocoa butter and anhydrous cocoa liquor in the proper amounts so as to form the chocolate crumb. This process provides a more economical way to produce chocolate crumb, since there is less requirement for large and expensive caramelization and heat exchange equipment, and the process is easier to control.
Patent CA-2212422-A1 (CA)
Inventor: HARTZ WOLFGANG
IPC: B65B5/02
Filed: 1996-02-08
Abstract: Cette invention concerne un sac plastique souple (10) destiné à recevoir plusieurs articles absorbants compressibles (54), lesquels sont disposés parallèlement les uns à côté des autres. Le sac (10) possède une base approximativement rectangulaire (12), un côté avant (14), un côté arrière (16), deux côtés étroits (18, 20) et un côté supérieur (22), ledit sac étant fermé sur tous ses côtés. Ce sac comporte également une ligne de faiblesse (30) délimitant une ouverture permettant de retirer un à un les articles (54). La hauteur du sac (10) est supérieure à sa profondeur et la ligne de faiblesse (30) s'étend sur le milieu du sac (10), en partant du centre de la ligne médiane longitudinale du côté supérieur (22) vers la base (12), et sur environ la moitié du côté avant (14) du sac (10). La base (12) est, quant à elle, dotée d'une bande de support (32) orientée vers le bas. La pression qu'exercent les articles absorbants (54) sur les côtés (12, 14, 16, 18, 20, 22) du sac (10) qui les contient n'est pas suffisante pour entraîner l'écartement de l'ouverture. L'ouverture se forme lorsque l'on plie le sac de manière à ouvrir la ligne de faiblesse, et se referme quand on remet le sac sur son côté de support après en avoir retiré des articles. Ce sac permet ainsi d'assurer un stockage très hygiénique d'articles absorbants.
Patent CA-2214218-A1 (CA)
Title: Handle for a carton box
Inventor: GOMES JEAN-MANUEL
IPC: B65D5/468
Filed: 1996-03-01
Abstract: A carton having a base panel (13), two side panels (14), a first top panel (15), a second top panel (16) and end panels (17, 18, 19). The first top panel (15) has a strap handle portion (21) defined by a cut (20) which extends the length of the first top panel and a distance into the adjacent end panels (18). The second top panel (16) overlies the first top panel and is adhered thereto. The second top panel provides access means comprising a central grip portion (29, 31) which is adhered to the underlying strap handle (21).
Patent CA-2214863-A1 (CA)
Inventor: BLACKHAM GEOFFREY HOWARD
IPC: H04N5/74
Filed: 1997-09-08
Abstract: Image display apparatus comprising projector means, a first modulator and a second modulator, the first and the second modulators being such as to modulate picture elements in an image whereby finite minimum image brightness above true black is reduced, and whereby the contrast range of the projected image is extended.
Patent CA-2218601-A1 (CA)
Inventor: PADHYE NISHA V
IPC: C07K14/245
Filed: 1996-03-25
Abstract: L'invention concerne des méthodes de production d'une antitoxine neutralisante dirigée contre les vérotoxines. Plus particulièrement, on produit l'antitoxine dirigée contre ces toxines dans des espèces aviaires en utilisant des protéines de vérotoxines recombinées solubles. Cette antitoxine aviaire est destinée à être administrée en doses thérapeutiques et peut se présenter sous quelle que forme que ce soit, sous forme solide ou dans une solution aqueuse. Ces antitoxines sont utiles dans le traitement d'humains et d'autres animaux intoxiqués par au moins une toxine bactérienne ainsi que pour des méthodes diagnostiques pour la détection de la présence d'une toxine dans un échantillon.
Patent CA-2220185-A1 (CA)
Inventor: ADAMS DAVID J
IPC: E04F15/02
Filed: 1997-11-04
Abstract: A structure of tiles comprising numerous tiles which together form a surface covering, wherein at least part of each tile rests on a piece of underlay that lays between the surface covered and the tile.  The piece of underlay had previously been fixed to the tile (having pressure-sensitive adhesive).  In the embodiments of this invention, the underlay, optionally and preferably, is still attached to the tile forming an underlay which is permanently fixed to the tile.  The surface covering of the present invention comprises tiles, each tile being square or rectangular, and having two opposed surfaces, wherein the tile has edges A, B, C, and D, between the surfaces and further has a coating of a pressure-sensitive adhesive and an underlay fixed to the surface having the coating of pressure-sensitive adhesive.  The underlay extends beyond the surface a certain distance over adjacent edges C and D, wherein the underlay has an L-shaped release strip which can optionally be removed from the tile to expose the pressure-sensitive adhesive coating.  Removal of the L-shaped strip exposes the coating on the tile in an area along adjacent edges A and B of the tile.  After the removal of the L-shaped strip, the area of exposed surface extends a distance across the tile from edges A and B, wherein the distance across the tile is equal to or greater than the distance that the underlay extends beyond the surface over edges C and D.
Patent CA-2221018-A1 (CA)
Inventor: YAO JAMES JING
IPC: E21B17/042
Filed: 1997-12-05
Abstract: A drill rod for a drill string has a thread at each end and is connected to an adjacent rod by a sleeve. The threads on the sleeve and rod are configured to reduce stress concentrations and provide sacrificial wear on the sleeve. The thread has a single start with a part circular root and the wear volume on the sleeve is less than that on the rod. The outer diameter of the rod is at least twice that of the inner bore.
Patent CA-2225457-A1 (CA)
Inventor: CORAL NEVIO
IPC: B01J19/08
Filed: 1996-06-27
Abstract: The method includes a step of creating a flow of the mixture, a step of generating an electron discharge at a velocity such as to create a zone in which the mixture is ionised and a step of directing a series of electron beams so as to intercept the flow of the mixture whereby the peripheral electron bonds of the polluting molecules and/or cells are broken by collision with the ions formed in the mixture. The apparatus includes an ionisation cell (10) having an anode (12) and an emitting cathode (13) excited at a negative voltage of the order of 50,000 volts. The cathode (13) has a series of pointed elements for emitting electron beams (30) which intersect in a zone (11) of interception of the mixture.
Patent CA-2228250-A1 (CA)
Inventor: SHIPLEY GALE
IPC: D21F7/08
Filed: 1998-02-27
Abstract: A  papermaking  fabric  comprised  of  modular  panels secured to one  another by hook and loop tape  fastener material or similar fastening means.  The fabric can be repaired by removing therefrom a section encumbering the damage and securing in its place in overlapping relationship with the existing panels a replacement panel section which bonds to the existing fabric base by similar fastening type means.  Alternatively, the fastening means may be used to join the ends of a fabric.
Patent CA-2231668-A1 (CA)
Title: Blade cooling air supplying system of gas turbine
Inventor: SUENAGA KIYOSHI
IPC: F01D9/02
Filed: 1998-03-10
Abstract: In the present invention, an air pipe extends through a stationary blade between outer and inner shrouds.  Further, an air passage is directed to a lower portion of the stationary blade and is communicated with the air pipe so that a serpentine cooling passage is formed.  The air enters a cavity from the air passage and is discharged to a gas passage through an air hole, a passage and a seal.  Thus, the cavity is sealed at a high pressure.  Cooling air is supplied from the air passage to a rotating blade through a cooling air hole, a cooling air chamber, a radial hole and a lower portion of a platform.  The stationary blade is cooled by the air through the air passage.  The cooling air can be supplied to the rotating blade at a low temperature and a high pressure as they are. Accordingly, the air can be also supplied to the rotating blade when a rotor is cooled by vapor.
Patent CA-2232542-A1 (CA)
Inventor: MILLER PHILIP
IPC: C07K14/415
Filed: 1996-10-03
Abstract: Amino acid and nucleotide sequences relating to the glutamate dehydrogenase (GDH) enzyme are described. The GDH enzymes described herein were discovered in the alga Chlorella sorokiniana in the form of seven different inducible isoenzymes. These isoenzymes are found in the algae as chloroplast-localized hexamers composed of alpha-and beta-subunits. Plants transformed with nucleotide sequences encoding the alpha- or beta-subunits of the enzyme show improved properties, for example, increased growth and improved stress tolerance. A heterohexamer having both .alpha.- and .beta.-subunits can have higher aminating:deaminating activity ratio than .alpha.-homohexamers or .beta.-homohexamers.
Patent CA-2234454-A1 (CA)
Inventor: FELDBAU OFRA
IPC: H04L9/32
Filed: 1996-08-27
Abstract: Apparatus and method for authenticating that a sender has sent certain information via a dispatcher to a recipient is disclosed. The method includes the steps of: (a) providing a set A comprising a plurality of information elements al, ..., an, said information element al comprising the contents of said dispatched information, and said one or more information elements a2, ..., an comprising dispatch-related information and comprise at least the following elements: a2 - a time indication associated with said dispatch; and a3 - information describing the destination of said dispatch, and wherein at least one of said information elements is provided in a manner that is resistant or indicative of tamper attempts by said sender; (b) associating said dispatch-related information with said element a1 by generating authentication-information, in particular comprising a representation of at least said elements a1, a2 and a3, said representation comprising a set of one or more elements, each comprising a representation of one or more elements of said set A; (c) securing at least part of said authentication-information against undetected tamper attempts of at least said sender. The dispatch relates either to transmission or to manual delivery. The apparatus implements the operations of the method.