baber/WOPTO huggingface dataset:
Patent CA-2290868-A1 (CA)
Inventor: CHIN HOU-GING
IPC: G02B3/06
Filed: 1999-11-24
Abstract: A wide-angle line generating lens constructed by bi-index rod lens that comprise a light transparent outer cylindrical lens inside the outer cylindrical lens integrates a least one inner rod lens parallel in orientation. Inner rod lens provides extra boundary surface for reflection and refraction which further diverse the propagation of an incident light compare with that of conventional simple cylindrical rod lens and therefore a wide-angle projection line is formed. A wide-angle line generator projects line images on opposite walls of a house indicating a cross sectional reference line. Geometric shape, position, and optical characteristics of inner rod lens are adopted to arrange the projection angle and the light distribution is the main feature of present invention.
Patent CA-2291915-A1 (CA)
Inventor: UEMATSU AKIRA
IPC: H04L29/08
Filed: 1999-12-07
Abstract: To achieve high throughput by using random reservation scheme, when traffic is heavy in multiple access communication system. Further, to suppress signal delay by using both random reservation scheme and random access scheme, when the traffic is low. Scheduling means holds a flag which indicates that there is no allocation of transmission bandwidth for a long packet reservation information stored in long packet reservation queue. The flag is checked, after the allocation of data transmission bandwidth is started. When the flags are set, bandwidths are allocated firstly for long packets, and secondly for short packets. On the other hand, when the flag is not set, bandwidths are allocated firstly for short packets, and secondly for long packets.
Patent CA-2292087-A1 (CA)
Inventor: BOWLING BRUCE A
IPC: F16L39/00
Filed: 1999-12-13
Abstract: A fluid coupling is provided having improved mounting or locating capabilities, for in a mounting aperture. A substantially cylindrically symmetric exterior is capable of being inserted into the mounting aperture. Retaining capability is provided to engage symmetric retaining features and features of the mount, to prevent unwanted removal of the fitting from the mounting aperture.
Patent CA-2294877-A1 (CA)
Inventor: LOPATA FRANCES G
IPC: C06B41/02
Filed: 1997-07-07
Abstract: Electrically ignitable conductive primer mixture comprising aluminum and carbon black and having reduced tetrazene, the mixture also containing lead styphnate, antimony sulfide and barium nitrate.
Patent CA-2294906-A1 (CA)
Title: Rear view mirror apparatus and method for vehicle lane changing
Inventor: VALENTINO JOSEPH A
IPC: B60R1/02
Filed: 1998-06-26
Abstract: An apparatus and method in a tractor-trailer type vehicle for insuring the ability to change lanes without colliding with other vehicles traveling in lanes adjacent the lanes adjacent the lane in which the vehicle is traveling. The side rear view mirror is motorized to encompass fields of view that include both adjacent and non-adjacent lanes without attention on the part of the operator: The minor is rotated at a minimum rate of speed to prevent confusion on the part of the operator during travel of the mirror between the two positions. The normal home position setpoint and the outer or scanned position setpoint are adjustable. The activation switch may be on the gear shift lever, the turn signal, or the control box for the motor.
Patent CA-2296765-A1 (CA)
Inventor: THALLEY BRUCE S
IPC: A61K39/00
Filed: 1997-08-28
Abstract: The present invention includes recombinant proteins derived from Clostridium botulinum toxins. In particular, soluble recombinant Clostridium botulinum type A, type B and type E toxin proteins are provided. Methods which allow for the isolation of recombinant proteins free of significant endotoxin contamination are provided. The soluble, endotoxin-free recombinant proteins are used as immunogens for the production of vaccines and antitoxins. These vaccines and antitoxins are useful in the treatment of humans and other animals at risk of intoxication with clostridial toxin.
Patent CA-2297100-A1 (CA)
Title: Ink-jet printing apparatus and ink cartridge therefor
Inventor: MATSUZAKI MAKOTO
IPC: B41J2/175
Filed: 1999-05-18
Abstract: An ink jet type printing apparatus in which an ink supply needle is located near one side in a direction perpendicular to the reciprocated directions of a carriage, a circuit board is mounted on a wall of an ink cartridge in the vicinity of the side on which an ink supply port is formed and plural contacts for connecting to external control means are formed on the exposed surface of the circuit board.
Patent CA-2297296-A1 (CA)
Title: Multi-dump metering valve
Inventor: BROOKE PETER LEIGHTON
IPC: B64D1/16
Filed: 2000-01-27
Abstract: In one aspect, the invention is directed towards a helicopter-carried firefighting device including a valve. The valve has an outer assembly and an inner assembly in which the outer assembly has a reduced surface area on those surfaces which are disposed normally to a direction of movement. The outer assembly therefore may be less affected by hydrostatic and hydrodynamic forces directed so as to oppose its movement. The valve may be located in a reservoir of fluid, and controlled by a control head operated remotely from the helicopter so as to release fluid from the reservoir over a fire. The valve may be symmetrical about a longitudinal axis of the valve, such that transversely directed fluid flows through the valve may be cancelled, producing a coherent, longitudinal fluid flow. The valve may be opened partially so as to operate as a metering valve. The valve may be closed relatively rapidly to retain fluid in the reservoir so as to permit multiple dumps from a single reservoir if so desired.
Patent CA-2297590-A1 (CA)
Inventor: NAHEIRI TARIK
IPC: B01D53/053
Filed: 2000-02-02
Abstract: A PSA process and system utilizes a combination of cyclic feed, evacuation, purge, and repressurization steps to provide a final gas product enriched in one of the feed components. The process is carried out in a simple system which utilizes a single two-way four-port valve for controlling gas flow between an adsorber vessel and a blower, and the blower is used for the introduction of feed gas into the adsorber and the evacuation of gas from the adsorber. The control of gas flow in either direction between the adsorber vessel and a product gas storage tank is accomplished by two check valves installed in parallel between the vessel and the tank.
Patent CA-2298573-A1 (CA)
Inventor: LAL PREETI
IPC: A61K48/00
Filed: 1998-07-28
Abstract: The invention provides a human synaptojanin isoform (NSYN-1) and polynucleotides which identify and encode NSYN-1. The invention also provides expression vectors, host cells, agonists, antibodies and antagonists. The invention also provides methods for treating disorders associated with expression of NSYN-1.
Patent CA-2300239-A1 (CA)
Title: A content-indexing search system and method providing search results consistent with content filtering and blocking policies implemented in a blocking engine
Inventor: MASSARANI LEONARDO C
IPC: G06F17/30
Filed: 2000-03-08
Abstract: A content-indexing search system and method provides search results consistent with content filtering and blocking policies. The search system comprises a content-indexing search engine including a database coupled to an information network. A user provides search queries to the search engine through a gateway serving as a proxy server and cache and blocking engine. The blocking engine implements content filtering and blocking policies with respect to the search results.  Alternative embodiments provide consistency between the results of the user content searches and the content filtering/blocking policies. One embodiment modifies the search engine to implement the same content blocking policy as the caching and filtering engine. Another embodiment modifies the search engine to build an indexing database by searching the caching and engine content. A third embodiment modifies the search engine to go through the cache and filter engine as the search engine builds its indexing database. A fourth embodiment modifies a search engine to go through a caching and filtering engine as it builds an indexing database.
Patent CA-2300568-A1 (CA)
Inventor: CASTOLDI ANDREA
IPC: H04N7/22
Filed: 2000-03-13
Abstract: A dual output electro-optical modulator (100) for modulating an optical signal by an electrical signal (285), comprising a Mach-Zehnder interferometer with an input path (102), two arms (103, 104) and a directional coupler (105), wherein the directional coupler comprise, two waveguides on a planar substrate (101) defining two inputs, two outputs anal a coupling region between the inputs and the outputs where the waveguides are in close proximity to each other so as to cause coupling between them. The coupling region of the directional coupler comprises a strong coupling region and in that the length of parallel sections of optical waveguides in the coupling region is less than 35% of the length of the strong coupling region.
Patent CA-2301341-A1 (CA)
Inventor: YU BEE YUN
IPC: H04M3/42
Filed: 2000-03-17
Abstract: A method of providing prepaid service to subscribers of a communication system where the subscribers need not enter any code prior to using the system. The subscribers can use the services provided by the system once registered into the system and as long as they have prepaid the system provider.
Patent CA-2301798-A1 (CA)
Title: Apparatus for continuous vacuum forming
Inventor: BOSLER ROBERT
IPC: B29C51/24
Filed: 1998-08-19
Abstract: An apparatus for continuous vacuum forming a material having a flexible patterned belt (14) continuously rotatable with a flat support belt (16) over a vacuum manifold (24). The flexible patterned belt (14) includes apertures (34) therein and the support belt (16) includes perforations (46) therein for drawing air therethrough. The material is drawn onto the flexible patterned belt (14) for vacuum forming the material. The flat support belt (16) provides improved stability of the flexible patterned belt (14) and improved vacuum characteristics between the belts.
Patent CA-2302345-A1 (CA)
Inventor: BECKMANN FRIEDHELM
IPC: B29C44/04
Filed: 1998-06-29
Abstract: L'invention concerne un procédé pour produire des structures plates au moyen d'un matériau moussant et de fibres présentant un degré élevé de finesse. Le matériau moussant est expansé lors du filage ou ultérieurement, entièrement ou en partie, dans la structure plate par apport d'énergie. Selon ce procédé, on utilise des fibres présentant un degré de finesse supérieur à 50. L'utilisation de fibres expansées ou pouvant être expansées ultérieurement permet d'agrandir largement la surface active. Il en résulte une diminution de la consommation en liant et en fibre de liage ainsi qu'une réduction de l'épaisseur. Les valeurs d'isolation sont améliorées et le taux d'émission est réduit.
Patent CA-2302937-A1 (CA)
Title: Method for producing (hetero)aromatic hydroxylamines
Inventor: HEILIG MANFRED
IPC: C07C239/10
Filed: 1998-08-21
Abstract: The invention relates to a method for producing N-acylated (hetero)aromatic hydroxylamine derivatives of formula (I), wherein the substituents, the ring atom and the index have the meanings given in the Description, by hydrogenating a (hetero)aromatic nitro-compound of general formula (II) in the presence of a hydrogenation catalyst.
Patent CA-2303597-A1 (CA)
Inventor: BRODOWICH JOSEPH BRUCE
IPC: A63F13/28
Filed: 2000-04-03
Abstract: The present invention for providing a sensory effect to a user, where the user is interacting with a video game, in response to a force feedback signal produced following a video game force feedback signal producing event, includes both means for communicating a force feedback signal, generated by the video game, to a first processor, and a plurality of switched power outlets cooperating with the first processor so as to be selectively biased on or off by the first processor. The plurality of switched power outlets electrically operate a corresponding plurality of sensory stimulators, which without intending to be limiting may form part of the device of the present invention, when the sensory stimulators are electrically connected to the plurality of switched power outlets. Also without intending to be limiting the device of the present invention may include means for producing a force feedback signal in response to a video game force feedback signal producing event.
Patent CA-2304887-A1 (CA)
Title: Communication system
Inventor: DAVIS LAWRENCE E
IPC: G06Q30/06
Filed: 2000-04-07
Abstract: A communication system having a telephone and a bar code reading integral therewith or connected thereto. A customer can use the bar code reader to scan bar codes associated with a merchant's goods and the information can then be sent to they merchant's facility as an order to be assembled for that customer.
Patent CA-2305631-A1 (CA)
Inventor: BOTHMANN HENDRICK
IPC: C12Q1/6811
Filed: 1998-10-23
Abstract: La présente invention concerne un procédé permettant d'obtenir des séquences nucléotidiques codant pour des polypeptides qui augmentent les rendements d'expression des protéines périplasmiques fonctionnelles par la coexpression desdits polypeptides et desdites protéines périplasmiques. L'invention se rapporte également à un procédé d'identification des polypeptides, ainsi qu'à un procédé permettant d'augmenter les rendements d'expression des protéines périplasmiques fonctionnelles par coexpression des polypeptides, par exemple de Skp, de FkpA, ou d'un homologue de Skp ou de FkpA dans des bactéries.
Patent CA-2305917-A1 (CA)
Inventor: JORDON IAN
IPC: G09B17/02
Filed: 2000-04-17
Abstract: A visual tracking device (10) comprises a light screening member (12) having a relatively high light transmission region (50) and a relatively low light transmission region (52) substantially surrounding the relatively high light transmission region (50). By means of this arrangement, text, symbols or other markings underlying the high light transmission region (50) are readily discernible and text, symbols and other markings underlying the low light transmission region (52) are less readily discernable.
Patent CA-2306307-A1 (CA)
Title: Sheet fixing device
Inventor: HIROTA YOSHINARI
IPC: A01G9/14
Filed: 2000-04-20
Abstract: A sheet fixing device in a vinyl house as a greenhouse is disclosed which not only can prevent wrinkling and rupture of a sheet but also can remarkably improve the efficiency of the work for installing and removing a pressing frame.      The sheet fixing device comprises an elongated support frame 1 having a narrow opening portion, a pressing frame 3 fitted in the elongated support frame 1 to hold a sheet 2 grippingly in cooperation with the elongated support frame, and an urging member 6 fitted in the pressing frame 3 to urge the pressing frame against an inner wall of the elongated support frame 1. The pressing frame 3 is prevented from being bent or warped.
Patent CA-2311586-A1 (CA)
Title: Amplitude mask, and apparatus and method for manufacturing long period grating filter using the same
Inventor: JANG JOO-NYUNG
IPC: G03F1/68
Filed: 1998-12-08
Abstract: An amplitude mask, and an apparatus and method for manufacturing a long period grating filter using the same, are provided. When a long period grating is manufactured by selectively passing laser light to an optical fiber, the amplitude mask periodically passes laser light to the optical fiber. The amplitude mask includes two masks (300) having periodically alternating pass areas (308) for passing the laser light and nonpass areas for preventing passing of the laser light, wherein the two masks (300) are continuously rotated in opposite directions. The period of the pass area (308) thus continuously changes. In this mask, two masks (300) each having a predetermined period are rotated in opposite directions, to thus provide an amplitude mask period depending on the angle of rotation (.alpha.). Thus, the period of the amplitude mask can be continuously changed.
Patent CA-2312388-A1 (CA)
Title: Vacuum gripping apparatus
Inventor: LINDBERG TEPPO
IPC: B66C1/02
Filed: 1999-10-22
Abstract: The invention relates to a vacuum gripping apparatus for moving roll-like loads, the loads being piled on top of each other and resting on their even end faces, the vacuum gripping apparatus comprising a suction plate (3) to be arranged against the end face of a load, the outer circumference (12) of the suction plate being provided with corner portions (19), side edges (21) that connect the corners of the portions being curved inward, and that the outer circumference (12) of the suction plate (3) determines the maximum lateral dimensions of the structure above the suction plate.
Patent CA-2315756-A1 (CA)
Title: Device and method for locating a mobile station in a mobile communication system
Inventor: KONG SEUNG-HYUN
IPC: H04B1/707
Filed: 1999-12-17
Abstract: A device and method for locating a mobile station (MS) in a mobile communication system. In the MS locating device, a first antenna and a second antenna of a base station (BS) are spaced from each other by a distance equivalent to a wavelength of an MS transmission channel multiplied by a predetermined coefficient, such as one half. A first frequency downconverter and a second frequency downconverter convert signals received from the first and second antennas to baseband signals and digitize the baseband signals to chip sample data. A first channel demodulator and a second channel demodulator recover the chip sample data received from the first and second frequency downconverters and output information about the symbol start and PN code of a specific MS signal. A controller outputs a PN code for identifying the specific MS and finger position information based on the symbol start and PN  code information received from the first and second demodulators. In addition, the controller may be supplied with orthogonal code information from the demodulator; in this case, the controller will output information concerning the specific Walsh code. A symbol data extractor extracts two symbols of the specific MS from the chip sample data received from the first and second frequency downconverters based on the PN code and finger position information.  An incident angle estimator estimates the incident angle of the received signal from the phase difference between the extracted two symbols. A location estimator estimates the location of the specific MS based on the estimated incident angle and the round trip delay (RTD) measured for the MS.
Patent CA-2317509-A1 (CA)
Inventor: WOLF BODO
IPC: C21B5/00
Filed: 1998-12-10
Abstract: L'invention concerne un procédé de production de fonte brute à l'aide de hauts fourneaux ou autres dispositifs appropriés dans lesquels des matériaux contenant du fer sont réduits et fondus en présence de combustibles. Le coke métallurgique peut, fselon l'invention, être acheminé par des combustibles organiques d'échange meilleur marché à l'aide de la combinaison d'un processus à plusieurs étapes de gazéification des combustibles d'échange permettant d'obtenir un gaz de réduction et du coke, et d'un processus haut fourneau auquel les produits du processus de gazéification peuvent être acheminés ensemble ou séparément à hauteur des tuyères ou au-dessus de ces dernières dans une chaude. Le processus de gazéification est également utilisé pour le préréduction d'oxydes de fer, de fines de minerai et de concentrés d'enrichissage.
Patent CA-2318272-A1 (CA)
Title: Method and apparatus for advanced television signal encoding and decoding
Inventor: HU YENDO
IPC: H04N7/26
Filed: 1999-01-21
Abstract: The specification discloses a method and apparatus for encoding and decoding advanced television signals using standard MPEG-2 compression engines while maintaining the compression efficiency of such compression engines. The architecture provides parallel processing using standard MPEG-2 compression engines in an overlapping arrangement that does not sacrifice compression performance. A video encoder includes plural regional processors for encoding an input stream of video images. Each video image is divided into regions that have overlapping portions, with each processor encoding a particular region of a current video image in the stream. The regional processors each store a reference frame in a local memory based on a prior video image in the stream for use in the motion compensation of the encoding process. A reference frame processor coupled to the plural local memories updates each reference frame with information from reference frames stored in adjacent local memories. The encoded video images are made up of macroblocks and each regional processor includes means for removing certain macroblocks from the encoded video images that correspond to the overlap portions and concatenating the resulting encoded video images with that of other regional processors to provide an output video stream.
Patent CA-2320174-A1 (CA)
Inventor: WANG SHU-SHAW PETER
IPC: G01S5/12
Filed: 1999-01-26
Abstract: At a receiver location in a wireless communication system service area (22), a set of characteristics that describe a received ray of a subscriber signal is measured (26). In a model of the wireless communication system service area, a propagation path of a model ray launched from a location in the model of the wireless communication system service area that corresponds to the receiver location in the wireless communication system service area is determined (34), wherein the ray has model signal characteristics based upon the set of characteristics that describe the received ray of the subscriber signal. Thereafter, a subscriber location in the wireless communication system service area is estimated in response to the propagation path of the model ray.
Patent CA-2320529-A1 (CA)
Title: Process for producing spheroidized hard material powder
Inventor: HORN RUDI
IPC: C01B32/949
Filed: 2000-09-22
Abstract: The spheroidized hard material powders are produced by introducing a finely ground basic mixture of hard material into a thermal, inductively coupled high-frequency plasma so that at the same time a chemical conversion reaction to form an alloy and/or chemical reaction and spheroidization of the particles in the plasma take place. The hard material mixture may be powder, granules, or a suspension or any combination thereof. Hence, a mixture consisting of Me x M y, wherein Me is a metal and M is a metalloid so that different metals and metalloids may be combined in the required metal-metalloid ratio is injected axially into an inductively coupled, high-frequency plasma with the aid of a carrier gas stream. The spheroidized hard material powder has excellent suitability for protection against wear.
Patent CA-2321112-A1 (CA)
Title: Information retrieval and speech recognition based on language models
Inventor: HUANG XUEDONG D
IPC: G10L15/183
Filed: 1999-02-09
Abstract: A language model (70) is used in a speech recognition system (60) which has access to a first, smaller data store (72) and a second, larger data store (74). The language model (70) is adapted by formulating an information retrieval query based on information contained in the first data store (72) and querying the second data store (74), Information retrieved from the second data store (74) is used in adapting the language model (70). Also, language models are used in retrieving information from the second data store (74).      Language models are built based on information in the first data store (72), and based on information in the second data store (74). The perplexity of a document in the second data store (74) is determined, given the first language model, and given the second language model. Relevancy of the document is determined based upon the first and second perplexities. Documents are retrieved which have a relevancy measure that exceeds a threshold level.