baber/WOPTO huggingface dataset:
Patent CA-2266939-A1 (CA)
Inventor: HAMABE KOJIRO
IPC: H04J1/00
Filed: 1999-03-25
Abstract: In a frequency carrier arrangement method, first and second frequency bands to which frequency carriers used for uplink and downlink communications between the first and second base stations and the mobile stations are arranged such that frequencies do not overlap. A first frequency carrier group constituted by at least one frequency carrier and a second frequency carrier group constituted by at least one frequency carrier different from the first frequency carrier group are arranged in the first frequency band.      A third frequency carrier group constituted by at least one frequency carrier and a fourth frequency carrier group constituted by at least one frequency carrier different from the third frequency carrier group are arranged in the second frequency band. Uplink and downlink communications are performed by using frequency carriers belonging to the second and third frequency carrier groups at the first base station. Uplink and downlink communications are performed by using frequency carriers belonging to the fourth and first frequency carrier groups at the second base station. A cellular system is also disclosed.
Patent CA-2270463-A1 (CA)
Inventor: ENEROTH GOERAN
IPC: H04W28/04
Filed: 1997-10-14
Abstract: In a telecommunication system that employs Asynchronous Transfer Mode (ATM) and minicells to transport communication data, accurate minicell header information dramatically improves the ability to align the minicells at a receiving station. More accurate minicell header information can be achieved by deriving a single header integrity check code (e.g., a cyclic redundancy code) for each ATM cell based upon minicell headers that have been inserted into contiguous locations in the ATM cell. By inserting the headers in contiguous locations, the receiving station can extract each header without having to rely upon the length indicator codes in each header, which may contain one or more bit errors. This, in turn, allows the receiving station to recompute the header integrity check code with far fewer errors, thus substantially increasing the probability of detecting and correcting the aforementioned errors and, ultimately, the ability to align the minicells.
Patent CA-2270996-A1 (CA)
Inventor: BARRON MICHAEL SEAN
IPC: A63C1/32
Filed: 1998-09-09
Abstract: An ice skate has a support member (1), for attachment to a boot (2) of the wearer, and a blade (3), connected to the support member (1) by a strut (4).  The strut (4) is a generally rigid block and incorporates a forward, upwardly curved, face (5) of the blade. The rearward portion (6) of the blade extends freely from the strut (4) and is able to flex to a certain extent. Thus, when the skater is negotiating a curve the rearward portion (6) of the blade can flex into a curved state so as to maintain the rear part (7) of the ice bearing surface substantially in contact with the ice during that manoeuvre. A  boss (8), projecting upwardly from the free end of the blade portion (6), and a filler plate (9) help to reduce the danger of the free end of the blade portion creating a potential danger to other skaters.
Patent CA-2273119-A1 (CA)
Title: Compensation of the differential floating capacitance between dual microelectrodes
Inventor: GANGULY UDAYA
IPC: A61B5/296
Filed: 1999-05-26
Abstract: A circuit and a method for compensating the floating differential capacitance appearing between two recording microelectrodes is presented. It is shown how this floating capacitance can be neutralized so that current in any microelectrode can be injected without any significant cross-talk picked up by the other. It is a fully symmetrical compensation.
Patent CA-2274634-A1 (CA)
Inventor: HAUDRECHY PASCALE
IPC: C22C38/42
Filed: 1999-06-08
Abstract: The steel contains (in wt.%): 0.01-0.08 carbon, 0.1-1 silicon, 5-11 manganese, 15-17.5 chromium, 1-4 nickel, 1-4 copper, 1 x 10<-4>-20 x 10<-4> sulfur, 1 x 10<-4>-50 x 10<-4> calcium, 0-0.003 aluminum, 0.005-0.1 phosphorus, 5 x 10<-4> boron, 0.01 oxygen, and iron and unavoidable impurities the remainder. Preferably, the steel contains (in wt.%): 0.01-0.05 carbon, 0.1-1 silicon, 5-11 manganese, 15-17.5 chromium, 1-2 nickel, 2-4 copper, 1 x 10<-4>-10 x 10<-4> sulfur, 1 x 10<-4>-10 x 10<-4> calcium, 0-0.001 aluminum, 0.005-0.1 phosphorus, less than 0.01 oxygen, and iron and unavoidable impurities the remainder. The steel may also include 0.01-2% Mo.
Patent CA-2276371-A1 (CA)
Inventor: GERARD ERIC-JACK
IPC: C08G18/32
Filed: 1998-01-05
Abstract: L'invention concerne une composition d'adhésif sensible à la pression contenant un polyuréthane thermoplastique et une résine collante, ce polyuréthane étant dérivé d'un diisocyanate aromatique ou d'un diisocyanate cycloaliphatique, d'un allongeur de chaîne, d'un diol polymère ou d'un diol de polydiène hydrogéné et d'un mono-ol de polydiène hydrogéné, la valence fonctionnelle moyenne en nombre du diol et du mono-ol étant située dans une plage de 1,2 à 1,8. Elle concerne, de plus, un polyuréthane thermoplastique conçu pour être utilisé dans des adhésifs sensibles à la pression, ainsi que des articles contenant ces adhésifs.
Patent CA-2279029-A1 (CA)
Title: Tamper-evident container with integrally moulded handle
Inventor: STURK RONALD J
IPC: B65D43/10
Filed: 1994-11-14
Abstract: A container (10) comprising a main body portion (14) having a top rim (20), at leaf one side wall (14) and a bottom wall (16), a carrying handle (22) integrally molded to the side wall (14), the carrying handle (22) being adapted to bend adjacent the side wall (14) to permit flexing of the handle (22) between a first substantially horizontal position and a second substantially vertical position, and a tamper evident connection of lid (12) to the container (10) comprising a channel (54) within a skirt (18) projecting outwardly from the side wall (14) below the top rim (20), a gripping portion (56, 58) of the lid (12) for receiving the top rim (20) and thereby securing said lid (12) to said container (10), wherein the gripping portion (56, 58) has a distal end (16) thereof adapted to be received within the channel (54), thereby tendering difficult access to the distal end (60), and a breakable and removable portion (64) of the skirt (18) for facilitating access to the distal end (60) of the gripping portion (56, 58) upon breaking the breakable and removable portion (64).
Patent CA-2284335-A1 (CA)
Inventor: AHRENS KENNETH A
IPC: E04H3/12
Filed: 1999-09-29
Abstract: A deployable telescopic seating structure employs a backstop arrangement to prevent users and operators from coming into contact with structure that may cause injury, such as interengaging metal elements that limit the extent of deployment. The backstop portions are arrangement in the aisle region of the telescopic seating structure and have an overall height that is responsive to the height of one seating level above another, or in another embodiment, to the difference between such height and an intermediate step. The backstop arrangement has an engagement portion with an edge portion that precludes a discontinuity on the walking surface of the seating structure. Structural integrity and strength of the riser portion is enhanced by forming same as a multi-fascia structure having a reinforcing corrugation therebetween. A curved back portion along the lowermost edge serves as a termination and additionally adds strength to the backstop arrangement. The backstop arrangement can be formed by bending sheet material or as a continuous extrusion of a polymeric material, such as vinyl, which is fire retardant and which provides injury reducing resilience in the event of impact by a player,
Patent CA-2285869-A1 (CA)
Inventor: DODD JOHN
IPC: C22C38/00
Filed: 1999-10-15
Abstract: A refiner disk (26) or disk segment (42) cast from a stainless steel alloy having a composition of 0.2 percent to 0.6 percent carbon, 0.5 to 1.5 percent manganese, 0.5 percent to 1.5 percent silicon, a maximum of 0.05 percent sulfur, a maximum of 0.05 percent phosphorus, 14 percent to 18 percent chromium, 2 percent to 5 percent nickel, 2 percent to 4 percent copper, a maximum of 1 percent molybdenum, 1.5 percent to 5.0 percent niobium, a maximum of 1.5 percent vanadium, and a maximum of 0.5 percent total of at least one element selected from either rare earth metals and/or magnesium, the balance being iron. The niobium and vanadium form discrete carbides at high temperatures during the melting process. The rare earth metals and/or magnesium enhances the toughness of the disk by helping to shape the carbides and control them as discrete particles. Upon cooling, the carbides are preferably distributed evenly throughout the structure. This resultant alloy provides toughness and corrosion resistance like a lower carbon alloy plus increased wear resistance due to the carbide formation. The alloy utilizes chromium to impart corrosion resistance, the process of tying up carbon as discrete, non-chromium carbides increases the amount of chromium present to provide corrosion resistance.
Patent CA-2286827-A1 (CA)
Inventor: JUNG THOMAS
IPC: B65C9/22
Filed: 1999-10-18
Abstract: The invention relates to an apparatus and a method for applying glue to banderoles, more particularly banderoles for cigarette packs, comprising a glue supply, a nozzle device (7, 9, 12), a guide for the banderoles to be glued and a means for controlling glue delivery, whereby the nozzle device (7, 9, 12) comprises a glue distributor (7) which applies the glue in two streaks to the banderole by a continual contact process.
Patent CA-2287123-A1 (CA)
Title: Enhancing well production using sonic energy
Inventor: WEGENER DENNIS C
IPC: E21B28/00
Filed: 1999-10-19
Abstract: The present invention provides methods and apparatus for enhancing the production of liquid hydrocarbons from a subterranean formation penetrated by a well bore. The methods basically comprise placing one or more electric powered sonic energy transducers actuated by magnetostrictive actuators which preferably have drive rods formed of terfenol alloy in the well bore, and causing sonic energy to be emitted from the transducers in the form of pressure waves through the liquid hydrocarbons in the well bore and/or in the formation thereby causing the liquid hydrocarbons to flow into the well bore and to the surface more freely.
Patent CA-2289499-A1 (CA)
Title: Somatostatin and somatostatin agonists for treating insulin insensitivity and syndrome x
Inventor: LIU YONG-LING
IPC: A61K38/08
Filed: 1998-05-13
Abstract: The present invention relates to a method of treating insulin resistance or Syndrome X. The method includes the step of administering a therapeutically effective amount of a somatostatin or a somatostatin agonist to said patient. The invention also includes pharmaceutical compositions comprising a somatostatin or somatostatin agonist and the use of such products in the preparation of such compositions.
Patent CA-2289528-A1 (CA)
Title: Emballage pour articles a fumer
Inventor: LUTON COLIN DENNIS
IPC: A24F15/00
Filed: 1998-05-01
Abstract: L'invention concerne un emballage (13) destiné à des articles à fumer allongés placés dans une enveloppe intérieure, l'emballage comprenant un étui extérieur en carton possédant un fond généralement rectangulaire (14), quatre parois latérales reliées par des charnières (15-20) et s'élevant à partir de ce fond, et un dispositif de panneau supérieur (22) fermant au moins partiellement le sommet de l'emballage. Les parois latérales (15-20) sont sensiblement de la même hauteur que les articles à fumer et sont fixes par rapport au fond. On accède aux articles à fumer par le dispositif de panneau supérieur (22).
Patent CA-2292039-A1 (CA)
Title: Nucleic acid diagnostics based on mass spectrometry or mass separation and base specific cleavage
Inventor: FOOTE SIMON
IPC: C12Q1/68
Filed: 1998-05-28
Abstract: A method of detecting a mutation or a difference of one or more nucleotides between a nucleic acid molecule to be tested and a reference nucleic acid molecule, said method comprising subjecting the test nucleic acid molecule to base specific cleavage to generate oligonucleotide fragments, separating the resulting oligonucleotide fragments based on mass by MALDI-ATOF MS and/or other equivalent procedure to produce a fingerprint of then oligonucleotide fragments comprising one or more peaks wherein a peak represents the mass of each fragment and identifying an altered peak relative to a reference nucleic acid molecule subjected to the same procedure wherein the presence of an altered peak is indicative of a difference of one or more nucleotides in said tested nucleic acid molecule.
Patent CA-2293344-A1 (CA)
Title: Method of forming automotive trim strip from extruded thermoplastic materials
Inventor: ZOHAR AVI
IPC: B29C48/06
Filed: 1998-06-25
Abstract: A process for forming a specific length of extruded thermoplastics material trim strip for automobiles includes the step of extruding the strip directly onto an endless carrier belt (24) moving at a speed matching the emergence speed of the extrudate (22). The extrudate (22), therefore, is less subject to stresses causing unpredictable length changes on cooling. It is therefore possible to predetermine the cooled, matured, final lengths of strip and to provide moulded end portions on-line.
Patent CA-2293826-A1 (CA)
Title: Attenuated recombinant mycobacteria useful as immunogens or as vaccine components
Inventor: GICQUEL BRIGITTE
IPC: A61P37/04
Filed: 1998-06-11
Abstract: The present invention relates to a recombinant mycobacterium strain of pathogenic origin capable of replicating in a macrophage of a host, said strain containing in its chromosome or on a plasmid a counterpart to a gene in the wild type mycobacterium coding for a protein necessary for the biosynthesis of a purine or a pyrimidine base, wherein said counterpart gene in the recombinant mycobacterium has been inactivated and to vector containing a conditional lethal counter-selective marker gene, particularly the SacB gene and a nucleotide sequence consisting of an inactivated gene coding for a protein necessary for the biosynthesis of a purine or a pyrimidine base. The invention further relates to methods for producing said recombinant mycobacterium strain, and to immunogenic, vaccines and immunotherapeutic compositions comprising said alive or dead recombinant mycobacterium strain, for the prevention or the treatment of tuberculosis.
Patent CA-2295340-A1 (CA)
Inventor: ROY RADHIKA R
IPC: H04N7/173
Filed: 2000-01-06
Abstract: A network performance specifying device that specifies guaranteed, controlled or unspecified service classes for multipoint, multimedia communication services.  The network performance specifying device permits an end-user to differentiated multimedia communication services (e.g., high quality to low quality and high cost to low cost) as may be specified via a standard set of parameters to instruct underlying transport layers to provide corresponding services that result in guaranteed quality of service for the end-user. This standard set of parameters allows end-users to select service classes for each type of media which guarantee a predetermined level of quality.
Patent CA-2296345-A1 (CA)
Inventor: KEWITSCH ANTHONY S
IPC: G02B6/14
Filed: 1998-08-04
Abstract: L'invention concerne un filtre d'insertion-extraction (10) d'énergie d'ondes optiques comprenant un réseau de Bragg (27) dans une région de ceinture très étroite (12) définie par des longueurs combinées de fibres optiques allongées (30, 31, 34, 35). De la lumière est propagée dans la région de ceinture via des fibres à transition progressive adiabatique (20, 21, 24, 25), cette lumière étant transformée à partir de deux fibres longitudinalement contiguës en deux modes orthogonaux dans le guide d'ondes air-verre de la ceinture, puis réfléchie hors du réseau de diffraction d'une fibre dans l'autre. La géométrie de la région de ceinture (12) est telle que la longueur d'onde d'extraction réfléchie est indépendante d'une polarisation, sans crêtes à pertes dans la bande de longueur d'onde intéressante. Des signaux de fond sont extraits par décalage de la bande de longueur d'onde intéressante. Des réseaux de diffraction haute résistance sont écrits par photosensibilisation des fibres de la région de ceinture. Des réseaux de diffraction à largeur de bande de spectre étroite sont apodisés par des variations ca et cc dans des faisceaux de lecture. Un dispositif de couplage faisant appel à ces derniers est précisément monté dans une structure de support produisant une compensation de température.<u> </u>
Patent CA-2299735-A1 (CA)
Inventor: HAYWARD JOHN
IPC: F04D29/22
Filed: 2000-02-29
Abstract: A centrifugal pump has an impeller rotatable by means of a drive shaft. The impeller has a plurality of radially extending vanes connected to a hub and a partial back shroud with sharpened leading edges. The pump has a pump casing with a back plate adjacent to the back side of the impeller. Spiral grooves on the back plate interact with the sharpened edges on the back shroud to aid in protecting the area between the back plate and the impeller by cutting of solids and expulsion of solids through an output port. Cutting bars on the front plate of the casing project into the pump intake and interact with front edges of the vanes to cut incoming solids in a liquid mixture. A preferred form of impeller has vanes with sharpened leading edges that extend in a generally radial plane. These vanes sweep backwardly from their leading edges and each vane is given a double twist between the leading edge and its trailing edge.    This form of impeller has both an effective slicing action and an efficient transmission of kinetic energy to the fluid.
Patent CA-2302188-A1 (CA)
Title: A method and apparatus for generating and displaying a broadcast system program guide
Inventor: LEGRAND LUDOVIC
IPC: H04N5/44
Filed: 1998-08-25
Abstract: A method and apparatus for generating an on-screen guide by which a user may select channels to view in a multiple channel broadcasting system are provided. According to one aspect of the invention, a program guide is generated comprising a number of still video pictures that represent current programming on a number of channels. The program guide is generated by the system tuning sequentially to each one of a number of channels. A visually usable video frame is captured from one of the number of channels.      The visually usable video frame is then decimated. Each of the steps of tuning, capturing, and decimating are then repeated for each of a selected number of channels. Following generation, the program guide is displayed on a screen or display. A system pointer is displayed on the screen along with the program guide, and the system pointer is manipulated in response to input by the user. A channel is selected for viewing by manipulating the system pointer to an area associated with the still video picture of the corresponding channel.
Patent CA-2303102-A1 (CA)
Inventor: RAGHAVAN CHIDAMBARAM
IPC: F04B53/00
Filed: 1998-09-17
Abstract: A coupling for a high pressure fluid pump assembly is shown and described. The plunger (14) has a rounded convex engagement surface. A second engagement portion of the extension rod (28) has a substantially flat second engagement surface engaging the first engagement surface of the plunger (14). The interface between the first and second engagement surfaces aligns motion of the plunger along the first axis with motion of the extension rod along the second axis, reducing their tendency to bend and to move laterally relative to their respective longitudinal axis.
Patent CA-2304228-A1 (CA)
Inventor: AUGENBRAUN JOSEPH E
IPC: H04H20/76
Filed: 1998-09-15
Abstract: An access system (10) and method provide interactive access to an information source, such as the Internet, through a networked distribution system, such as a television distribution system (11). Each user in the television distribution system can access the Internet through an associated terminal (54) by sending commands through an upstream channel (22) to a headend server (38) which is interfaced between a television network headend (34) and an Internet Service Provider (ISP) (60). The headend server manages all Internet information requests from the terminals by forwarding the requests to the ISP  and receiving the requested information therefrom. An Internet Protocol (IP) address is assigned only to the headend server which keeps track of the terminals requesting information by means of terminal identification numbers or codes associated with each request. The headend server also maintains a plurality of Internet browser applications (75) active at all times to insure that a terminal requesting Internet access can be immediately interfaced to the ISP through one of the active browser applications. Each of the downstream television signals includes a vertical synchronization signal that is preferably employed to generate a framing signal for synchronizing upstream transmission of the data packets comprising the information requests from the terminals.
Patent CA-2304409-A1 (CA)
Inventor: WEBER HENRIETTE
IPC: C11D17/00
Filed: 2000-04-03
Abstract: Detergent tablets distinguished by high hardness and, at the same time, a short disintegration time can be obtained through the presence in the tablet of two surfactant granule types of which the first is produced by mixer granulation and the second by press agglomeration, the ratio by weight of the mixer granules to the press granules being between 9:1 and 4:6.
Patent CA-2305515-A1 (CA)
Title: Optical disc and apparatus for scanning the optical disc
Inventor: VAN DEN ENDEN GIJSBERT J
IPC: G11B7/007
Filed: 1999-07-26
Abstract: An optical disc is described for recording data, which disc has a recording area for recording data encoded in optical marks at a recording density. The recording area has circular or spiral tracks provided with a servopattern comprising headers alternating with track portions. The headers contain position information encoded in preformed marks. The track portions comprise periodic characteristics, e.g. a wobble, to synchronise the data writing and reading operations. For reliably detecting the headers the phase of the periodic characteristics comprises a phase jump at a predetermined distance before each header.
Patent CA-2305650-A1 (CA)
Title: An apparatus and method for reducing delay for voice over atm using co-located switches
Inventor: AKHTAR HASEEB
IPC: H04L12/56
Filed: 1998-07-10
Abstract: The instant invention allows control of voice transmission from end user to end user by common channel signaling without the repeated conversion delays encountered by entering and exiting the standard voice network and an ATM network. The control is accomplished in parallel over the standard public switch telephone network while the voice "data" is transported over an ATM "data" network. Each ATM node has with it a co-located PSTN voice switch. A pair of control links is used to communicate between the two co-located ATM and TDM switches.