baber/WOPTO huggingface dataset:
Patent CA-2331255-A1 (CA)
Inventor: PILON LARRY L
IPC: A41D25/02
Filed: 2001-01-17
Abstract: A permanently knotted tie having an adjustable neck band is described. The tie comprises a tapered tubular section having a tie front section depending longitudinally therefrom and a tailpiece section depending longitudinally therefrom in the opposite direction to the front section. The tailpiece section is passed around the wearer's neck and the free end thereof is inserted through the tubular section to lie behind the front section, when viewed from the front.  Releasable fastening means are provided to releasably secure the tailpiece section to either the front section or the tubular section.
Patent CA-2332392-A1 (CA)
Inventor: HONCHARENKO WALTER
IPC: H04L12/28
Filed: 2001-01-26
Abstract: A method and apparatus for use in a wireless communications network searches for the best serving access point of a base station as a function of communication link quality and load levels, thereby allowing a subscriber terminal to react to changes in RF conditions and load levels. In one implementation, a wireless modem in a fixed wireless access network initiates an access point searching algorithm in response to a triggering condition, such as initially powering-up the subscriber terminal or degradation of communication link quality or load levels. After detecting beacons for a plurality of neighboring access points, the wireless modem selects the best access point as a function of communication link quality and relative load levels to maintain adequate service quality  and to react to changes in load levels.      After an initial selection, the wireless modem may continually monitor quality/load conditions to determine whether to select a new access point.
Patent CA-2333789-A1 (CA)
Title: Self-expanding stent-graft
Inventor: DAVILA LUIS A
IPC: A61F2/06
Filed: 2001-01-31
Abstract: In accordance with the present invention, there is provided a stent-graft for insertion into target site within a vessel of a patient. The graft has a crimped state for delivery to the target site, and an expanded state for implantation therein. The graft has a self-expanding outer stent, which is a tubular member made from an elastic material. The graft further includes a tubular flexible porous graft member extending along the interior of the outer stent. The graft member has front and back ends which are folded over and bonded to the front and back ends of the outer stent to form cuffs. In addition, the stent-graft has a self-expanding inner stent which also is a tubular member made from an elastic material. The inner stent is disposed within the interior of the graft member such that the inner stent, the graft member and the outer stent are all abutting. 21
Patent CA-2335216-A1 (CA)
Title: Passive thermal compensation of all-fiber mach-zehnder interferometer
Inventor: VILLENEUVE ALAIN
IPC: G02B6/34
Filed: 2001-02-09
Abstract: The invention provides an all-fiber Mach-Zehnder interferometer in which the composition of one of the arms, which connect the couplers, or of a segment of such arm, is doped with dopants, such as GeO2, P2O5, B2O3 and F. The doping is adjusted to obtain a desired thermal dependence of the interferometer within a given temperature range. The segments can further be tapered with an adiabatic taper.
Patent CA-2336780-A1 (CA)
Title: Systeme de projection fonde sur des systemes optiques holographiques pouvant etre reconfigures
Inventor: POPOVICH MILAN M
IPC: G02B5/32
Filed: 1999-07-09
Abstract: L'invention concerne un système de projection (26, 60, 80, 88, 102, 122) et un procédé d'affichage d'une image d'entrée projetée sur un écran de projection (14, 30, 96, 104, 124). Ce système et ce procédé utilisent un ou plusieurs éléments optiques holographiques pouvant être reconfigurés (42, 44, 46, 54, 56 et 58; 64, 66, 68 et 70, 98, 106 et 108, 126 et 128) pour manipuler par voie optique la lumière de propagation dans le système. Ces éléments pouvant être reconfigurés peuvent être configurés pour assurer des fonctions optiques simples qui sont généralement associées à des dispositifs optiques traditionnels, comme des lentilles, des prismes et des miroirs. Toutefois, les éléments optiques pouvant être reconfigurés peuvent également être reconfigurés pour effectuer des manipulations optiques sophistiquées, comme faire varier l'intensité lumineuse vers une direction spécifique et générer des images (holographiques) virtuelles. Chaque élément optique pouvant être reconfiguré comprend un hologramme qui est placé entre deux couches d'électrodes. L'hologramme est un film photopolymère holographique qui a été combiné à des cristaux liquides. L'hologramme présente une propriété optique qui change en réponse à un champ électrique appliqué. Les éléments optiques pouvant être reconfigurés peuvent être inclus dans un filtre couleur (38) du système pour diffracter de manière sélective les lumières trichromatiques vers un panneau d'affichage (40) pour fournir un affichage couleur de l'image d'entrée qui est projeté sur l'écran de projection. Les éléments optiques pouvant être reconfigurés peuvent également être inclus dans une système optique de projection (34, 62) pour amplifier l'image projetée sur l'écran de projection et/ou rediriger l'image projetée pour former une images en mosaïques sur l'écran de projection. En outre, les éléments optiques pouvant être reconfigurés peuvent être utilisés dans l'écran de projection pour modifier l'intensité lumineuse vers des positions de visualisation spécifiques. Dans une application, les éléments optiques pouvant être reconfigurés dans l'écran de projection permettent au système de présenter l'image de visualisation sous une forme stéréoscopique.
Patent CA-2337296-A1 (CA)
Title: Interleaver/deinterleavers causing little or no dispersion of optical signals
Inventor: CHEN JYE-HONG
IPC: G02B6/34
Filed: 2001-02-15
Abstract: The present invention relates to interleaver/deinterleaver devices for combining/separating optical channels. An interleaver/deinterleaver is "folded" when an optical signal follows an optical path that passes through a birefringent assembly multiple times. Double-pass refers to optical signals following a (folded) path through the birefringent assembly twice. Multi-pass refers to optical signals following a (folded) path through the birefringent assembly multiple times. When operating as a deinterleaver, the interleaver/deinterleaver separates an optical signal (e.g., WDM signal) into subsets of optical signals (e.g., even and odd ITU channels). When operating as an interleaver, the interleaver/deinterleaver mixes subsets of optical signals into a multiplexed optical signal. The interleaver/de-interleaver can be used to increase the bandwidth of an optical network. For example, the interleaver/deinterleaver can be used to interface components designed for a first channel spacing (e.g., 100 GHz) to components designed for a second channel spacing (e.g., 200 GHz). Folded interleaver/deinterleavers cause dispersion because the speed at which the ordinary beam of an optical signal passes through the birefringent assembly is different that the speed at which the extraordinary beam of the optical signal passes through the birefringent assembly. In order to reduce or eliminate dispersion, the polarization of the optical signal is reversed for alternating passes through the birefringent crystal. For example, if a signal is horizontally polarized for a first pass through the birefringent crystal, the signal is rotated so that it is vertically polarized for a second pass through the birefringent crystal. For a third pass through the birefringent assembly, the signal is rotated so that it is again horizontally polarized.
Patent CA-2337379-A1 (CA)
Inventor: DUMAS JEROME
IPC: H03G3/30
Filed: 1999-08-31
Abstract: An automatic gain control, AGC, circuit (13) comprises a preferred transition region (63). A gain correction unit (23) is responsive to an attenuate command and amplify command coming from a feedback system monitoring the AGC's output.  The feedback system can individually adjust the delays of both attenuate and amplify commands sent to the gain correction unit (23). Additionally, the present AGC also includes a transition region detector (25) that monitors the input signal applied to the AGC (13) to form a feedforward system. The transition region detector (25) producing a control output to selectively permit the gain correction unit (23) to respond to an attenuate or amplify command. If the magnitude of the input signal is greater than a predetermined value, then it will place a disable signal on its control output to prevent the gain correction unit from altering its gain. However, if the magnitude of the input signal remains greater than the predetermined value for a long time, then a timer (50) will override the transition region detector (25) and enable the gain correction unit (23) to adjust its gain.
Patent CA-2337651-A1 (CA)
Title: Monture de lunettes
Inventor: LIESEGANG JOSE JOAQUIM
IPC: G02C5/08
Filed: 1999-07-14
Abstract: L'invention concerne des lunettes comportant deux verres (1, 2), au moins une surface d'appui (6) pour le nez de l'utilisateur, deux éléments porteurs (7, 8) placés latéralement sur les verres (1, 2) et dont la longueur est telle qu'ils ne dépassent pas les tempes de l'utilisateur. Les éléments porteurs (7, 8) présentent, sur leurs côtés tournés vers la tête de l'utilisateur, des éléments d'appui (16, 17), en particulier au niveau de leurs zones terminales (18) faisant face aux tempes de l'utilisateur. Une articulation (11), placée entre les verres (1, 2), peut être mise dans une position de repos, dans laquelle les verres (1, 2) reposent pratiquement l'un contre l'autre, et dans une position d'utilisation. Ces lunettes se caractérisent par le fait que les éléments porteurs (7, 8) forment chacun avec le verre (1, 2) qui lui est associé un angle fixe qui est, de préférence, compris entre 60· et 120·, et en ce que, dans la zone de l'articulation (11), se trouve un élément (15) faisant ressort. Cet élément (15) faisant ressort presse les éléments porteurs (7, 8) contre la zone des tempes de l'utilisateur, dans la zone des éléments d'appui (16, 17), de telle sorte que lesdits éléments porteurs (7, 8) sont maintenus sur la tête de l'utilisateur par liaison de force.
Patent CA-2338436-A1 (CA)
Title: Combustion of fats and oils
Inventor: MCNEIL JOHN
IPC: F02M25/10
Filed: 1999-07-23
Abstract: The invention relates to a method of combusting tallow, and particularly tallow that may be contaminated with the prion protein considered to be responsible for spreading the Bovine Spongiform Encephalopathy (BSE) infection in cattle, in a standard high-speed compression ignition engine. The invention also extends to combustion of other animal/vegetable-based fats and oils, particularly waste cooking oils which are at risk of contamination by toxic chemicals which may potentially enter the food chain. The heat and power produced by the engine may then be used to generate electricity. In accordance with the invention, the tallow etc. is combusted in an enriched oxygen atmosphere in the combustion chamber of the engine.
Patent CA-2338963-A1 (CA)
Inventor: THOMPSON ROBIN JEFFREY
IPC: H04M3/00
Filed: 2001-02-28
Abstract: The apparatus, method and system embodiments of the present invention provide for maintaining call control at a gateway mobile switching center (MSC), for roaming mobile units, utilizing a packet network or link, such as an ATM link.  The preferred system embodiment includes a gateway MSC, a serving MSC, and a base station having a wireless link with the roaming mobile unit. The gateway MSC includes a protocol handler for voice (PHV). For any given incoming call for the roaming mobile unit or outgoing call from the roaming mobile unit, the gateway MSC designates a specific address (or channel) on the PHV, referred to as a data link connection identifier (DLCI), for use as an address for voice packets to be received from the roaming mobile unit via the base station and serving MSC, and the base station also provides a base station packet address to the gateway MSC, for use as an address for voice packets to be received from the gateway MSC (through the serving MSC) for the roaming mobile unit, thereby creating a full duplex packet link. The packet link serves as a voice path between the base station, the serving MSC, and gateway MSC, with all communication to and from the roaming mobile unit routed through the gateway MSC. The gateway MSC thereby maintains all call control for the roaming mobile unit for the implementation of advanced calling features, such as call waiting and three-way calling. In the preferred embodiment, the DLCI is included as a new parameter for ANSI-41 compatible messages. In addition, new ANSI-41 compatible messages are also utilized, a Gateway Origination Request containing the base station packet address and a Gateway Origination Request Return Result containing the new DLCI parameter.
Patent CA-2342163-A1 (CA)
Title: Optical fiber
Inventor: KAWANISHI SATOKI
IPC: G02B6/02
Filed: 2000-06-30
Abstract: An optical fiber capable of producing white light with a sufficiently wide wavelength band and of stabilizing the polarized state. The optical fiber can produce white light in wavelength bands on both sides of a pumping light pulse inputted by a nonlinear phenomenon. A core (1) of the optical fiber is clad with a first clad (2), which is clad with a second clad (3). The ratio (.DELTA. 2/.DELTA. 1) between the relative refractive-index differences .DELTA. 1, .DELTA. 2 of the core (1) and the first clad (2) with reference to that of the second clad (3) is -0.4 to -0.85. The ratio of the outside diameter of the core (1) to that of the first clad (2) is 0.4 to 0.7. The relative refractive-index difference .DELTA. 1 is 0.6 to 1.2%. The transmission loss of light with a wavelength near 1.4 µm is 10 Db/km or less. Stress imparting parts (4) for imparting stress to the core (1) are provided on both sides of the core (1) in the second clad (3) to make the fiber a constant polarization optical fiber. The shortest distance between the stress imparting parts (4) is 2.3 times or more the mode field diameter of the wavelength of the pumping light pulse.
Patent CA-2342609-A1 (CA)
Title: Adjuvant containing n-formyl methionyl peptides for vaccines
Inventor: ALEXANDER JEANNINE
IPC: A61P37/04
Filed: 1999-12-17
Abstract: The present invention relates to immunological adjuvants comprised of the N-formyl methionyl peptide fMLP. fMLP, when used as an adjuvant in accordance with the present invention, provides for an immune response to suboptimal doses of recombinant antigens.
Patent CA-2342749-A1 (CA)
Title: Elbow canister fuseholder
Inventor: STEPNIAK FRANK
IPC: H01H85/02
Filed: 2001-04-02
Abstract: A new elbow canister fuseholder is provided that includes an electrically insulated and shielded housing for placing a fuse in-line between a cable and an electrical apparatus for underground distribution application. An insulating tube is contained within the housing for easy sliding removal of the fuse through an end plug such that the elbow is reusable when a fuse is replaced.
Patent CA-2343802-A1 (CA)
Title: Load balancing cooperating cache servers
Inventor: YU PHILIP SHI-LUNG
IPC: G06F9/50
Filed: 1999-10-08
Abstract: In a system including a collection of cooperating cache servers, such as proxy cache servers, a request can be forwarded to a cooperating cache server if the requested object cannot be found locally. An overload condition is detected if for example, due to reference skew, some objects are in high demand by all the clients and the cache servers that contain those hot objects become overloaded due to forwarded requests. In response, the load is balanced by shifting some or all of the forwarded requests from an overloaded cache server to a less loaded one. Both centralized and distributed load balancing environments are described.
Patent CA-2349029-A1 (CA)
Title: Integrated optical add-drop multiplexer (oadm) using optical waveguide mirrors and multiplexer/demultiplexer
Inventor: JANZ SIEGFRIED
IPC: H04J14/02
Filed: 2001-05-28
Abstract: An integrated optical arrangement including planar waveguide demultiplexers and waveguide mirrors on a single chip is used to fabricate an optical add-drop multiplexer.
Patent CA-2350417-A1 (CA)
Inventor: WAGNER RICHARD
IPC: C12Q1/68
Filed: 1999-12-02
Abstract: L'invention concerne un procédé permettant de marquer des protéines de manière covalente, ainsi que leurs séquences de codage d'ADN (voir figure). Ces fusions de protéines-ADN peuvent être utilisées dans des techniques d'évolution et de reconnaissance moléculaire.
Patent CA-2351174-A1 (CA)
Title: Communications network and method of routing messages within the network
Inventor: ZOLFAGHARI MAJID
IPC: H04L45/121
Filed: 1999-11-10
Abstract: A communications network for sending messages between a plurality of nodes with unique identities comprises a server unit. Each node (1) is provided with first storing means for storing a list of all nodes neighbouring said node, which are directed to it and second storing means containing a data field (2) which forms an array (4) of cells (5) indexed for all nodes in the network. A  third storing means is provided in the server unit for forming a temporary queue (3). A method of routing messages within the network includes transforming a graph-representation of the network into a tree model with the destination node as root. This tree is the shortest which the graph can be transformed into.
Patent CA-2351799-A1 (CA)
Title: Method for an online multiple player game payment system
Inventor: PETERSON RANDALL STANLEY ERNES
IPC: G06Q20/06
Filed: 2001-06-27
Abstract: An online multiple player game payment system includes one or more game clients, master servers, game hosts, payment gateways and statistics monitors. A game client has software that displays visual game information on a remote computer and allows the computer to send and receive user data to and from the game host utilizing existing communications hardware located in the remote computer. A master server includes software that collects information on currently operating game hosts and receives requests from game clients for this information. A game host includes software that controls game client interaction in various contests of skill and utilizes existing communications hardware to send and receive user data to and from game clients, payment gateways and statistics monitors. A payment gateway is provided by software executing on a computer to receive user data from a game host and verifying that data against an existing database of credit information, in addition to sending user data back to the game host containing the results of the verification. A statistics monitor receives user data from a game host containing information regarding the outcome of the various contests of skill and records this information in a database for the purposes of accounting.
Patent CA-2355220-A1 (CA)
Inventor: PARK SUNG DON
IPC: H05H1/24
Filed: 2001-08-14
Abstract: A discharge device and an apparatus for generating plasma gas employing the same are disclosed. The discharge device enables a discharge phenomenon to occur between a dish-shaped electrode arranged inside an electrical bulb and a plate electrode located outside of the electrical bulb. And the apparatus for generating the plasma gas utilizes the discharge device to efficiently produce the plasma gas. The discharge device for generating discharge between electrodes by applying a predetermined high voltage therebetween, comprises, at least one bulb containing at least one dish-shaped electrode therein; and at least one plate electrode having at least one hole through which the bulb is inserted, and located coplanar with the dish-shaped electrode. In the case that a plurality of dish-shaped electrodes and a plurality of plate electrodes are provided, a sufficient amount of plasma gas which are used in the wastewater treatment system.
Patent CA-2355767-A1 (CA)
Inventor: BEDI DALJIT S
IPC: F16H37/00
Filed: 2001-07-27
Abstract: The mechanical digital gear is a method of converting rotary motion to controllable reciprocating motion, and visa versa. Whereas the gear teeth reciprocate within two blocks 'A'. One block 'A' teeth mesh with the rotary shaft [Mechanical Digital Shaft, Canadian Patent Application #2,355,766]. The reciprocating motion begins in one direction. To change the direction of the reciprocating motion, the said block 'A' teeth breaks contact with the rotary shaft as the said set of teeth retract into its housing. The opposing block 'A' teeth then engage with the rotary shaft changing the direction of travel of the reciprocating motion.   This particular method can be used to replace the conventional "crankshaft and piston" layout of the internal combustion engine or anywhere this type of conversion (from rotary to reciprocating motion) is required. As in the case of industrial grinders, where the length of the reciprocating motion can vary.
Patent CA-2356374-A1 (CA)
Title: Method for preparing a silica suspension in a silicone matrix crosslinkable by polycondensation to form elastomers
Inventor: HOWE FABIENNE
IPC: C08K9/06
Filed: 1999-12-21
Abstract: The invention concerns a method for preparing a silica suspension in a silicone matrix, said suspension capable of being used for producing organopolysiloxanes crosslinkable by polycondensation. The invention aims at seeking a technical compromise between the rheology of said compositions and the mechanical properties of the resulting crosslinked elastomers. As a solution, the invention discloses a method for preparing a silica suspension treated with organosilazane in a silicone material comprising a linear reactive polyorganosiloxane bearing for example at each chain end a hydroxy group. The invention is characterised in that it consists essentially in introducing the organosilozane in the preparation medium: before and/or substantially simultaneously before bringing together at least part of the silicone material and the particulate filler used, said organosilozane introduction being carried out with a fraction of organosilazane corresponding to a proportion ranging between 8 % and 30 % by dry weight relatively to the silica filler, and after bringing together the filler and all or part of the silicone material.
Patent CA-2357797-A1 (CA)
Title: Systeme d'aide au lever a poussee constante sur un fauteuil de confort et mobilite
Inventor: BOUCHARD ANDRE
IPC: A61G5/10
Filed: 2001-09-05
Abstract: La présente invention se rapporte à un système d'aide au lever à poussé e constante sur un fauteuil de confort et mobilité actionné par un ou des cylindres à gaz et contrôlé par un cylindre hydraulique à l'huile ou actionn é et contrôlé par un cylindre motorisé (actuator).