baber/WOPTO huggingface dataset:
Patent CA-2232446-A1 (CA)
Title: Coding and decoding system for speech and musical sound
Inventor: SERIZAWA MASAHIRO
IPC: G10L19/09
Filed: 1998-03-17
Abstract: A coding and decoding system includes first filter means for representing an input signal with first linear prediction coefficients indicative of a coarse spectral distribution of the input signal, second filter means for representing the input signal with second linear prediction coefficients indicative of a fine spectral distribution of the input signal and third filter means connected in series with or parallel to the second filter means for representing the input signal with third linear prediction coefficients indicative of a periodic component of the input signal. A coding and decoding of the input signal is performed on the basis of parameters of the input signal which is produced on the basis of a residual signal between the input signal and a reproduced signal obtained through the first, second and third filter means.
Patent CA-2237782-A1 (CA)
Inventor: BOUVIER WAYNE L
IPC: A01D34/00
Filed: 1998-05-15
Abstract: An air pervious disposable liner for use with a lawn mower is described. The liner is inserted into the grass catching receptacle of the lawn mower such that grass clippings generated by the lawn mower flow into the grass catching receptacle and fill the liner. As a result of this arrangement, debris discharged by the lawn mower, such as stones or rocks, that would pierce the liner alone are retained by the grass catcher receptacle and therefore will not injure the user. Once the liner is full, the grass catching receptacle is disconnected from the lawn mower and the liner is removed from the grass catching receptacle and discarded.
Patent CA-2239826-A1 (CA)
Inventor: PENKLER DAVID
IPC: H04L29/12
Filed: 1996-12-11
Abstract: Traditional IN (Intelligent Network) services in a PSTN use service logic and data that is accessible for use only by the PSTN, though provision may be made for users to change certain controlled parameters of the services. The present system has the service logic and data placed on a server (51) accessible over the Internet (50). This permits anyone to access useful telephone data such a time-of-day routing or diversion number information of a user. Thus a calling party (A) can determine before placing a call over the PSTN the best number to call by accessing the phone page (49) of the intended called party (B). This phone page (49) would remain accessible to the PSTN for service provision. In a preferred embodiment, the service logic and data is maintained by the user (B) independently of the PSTN on a server (51) of the user's choice; in this case, the PSTN would also access the user's service logic and data over the Internet (50).
Patent CA-2241470-A1 (CA)
Title: Diamond detection using coherent anti-stokes raman spectroscopy
Inventor: DRIVER HARRY STEPHEN THACKWRAY
IPC: G01N21/87
Filed: 1998-06-23
Abstract: The invention concerns a method and apparatus for detecting diamonds. In the method, particles (32) undergoing analysis are irradiated by a beam (30) of laser light formed by focusing multiple laser beams (12, 14). At least two of these beams have frequencies differing from one another by a value characteristic of diamond so that, in the focused beam, at least some components of the laser beams are coherently phase-matched. The scattered signal emitted by each particle is then collected and a determination is made as to whether such signal is a CARS signal characteristic of diamond.
Patent CA-2243265-A1 (CA)
Title: Pentaerythritol derivatives and their use as lube additives
Inventor: FRANCISCO MANUEL A
IPC: B01J31/02
Filed: 1998-09-01
Abstract: The present invention is for the use of certain oil soluble anti-oxidants, particularly certain derivatives of pentaerithrytol having sufficiently oil solubility and active C-S bonds, i.e., those containing a sulfur bonded to a carbon having a tertiary hydrogen and an electron withdrawing group, to enhance the oxidation resistance of lubricating oils and fuels, and to the novelformulated compositions containing these additives. Typically, a minor amount of additive, from about 0.05 to about 20 wt% is used. The additive has utility in a variety of different types of oils as an antioxidant.
Patent CA-2244501-A1 (CA)
Title: Arylsulfonylamino hydroxamic acid derivatives
Inventor: ROBINSON RALPH PELTON
IPC: A61P35/00
Filed: 1998-08-06
Abstract: Disclosed is a compound of the formula:     (see fig. I) (wherein n is 1-6; X is hydroxyl, alkoxy or optionally substituted amino; R3 and R4 are each hydrogen, alkyl aryl or the like; and Ar is aryl-aryl), which inhibits matrix metalloproteinase and production of TNF and is useful in the treatment of a condition selected from the group consisting of arthritis, cancer, tissue ulceration, restenosis, periodontal disease, epidermolysis bullosa, scleritis, bone resorption, loosening of artificial joint implants, atherosclerosis, multiple sclerosis, occular angiogenisis and other diseases characterized by matrix metalloproteinase activity, AIDS, sepsis, septic shock and other diseases involving the production of TNF.
Patent CA-2245418-A1 (CA)
Title: Hybrid optical waveguide and manufacturing method thereof
Inventor: YOU BYONG-GWON
IPC: G02B6/122
Filed: 1998-08-24
Abstract: A hybrid optical waveguide and a fabrication method thereof are provided. The hybrid optical waveguide having linear and curved sections through which optical signals pass, includes a planar substrate layer, a lower cladding layer formed of a material having optical transparency in the optical communication wavelengths, on the planar substrate layer, a core layer formed on the lower cladding layer, where an optical waveguide constituted of a linear section formed of a first optical polymer having a higher refractive index than the lower cladding layer and a curved section formed of a second optical polymer having a higher refractive index than the first optical polymer is formed, and an upper claddinglayer formed of a material having a lower refractive index than the first and the second optical polymers, surrounding the waveguide core layer. Thus, the opticalwaveguide having the linear and curved sections can reduce traveling loss and optical fiber coupling loss, and minimize the size of the waveguide cross-section.
Patent CA-2246806-A1 (CA)
Title: An improved optical switching apparatus for use in the construction mode testing of fibers in an optical cable
Inventor: PIMPINELLA RICHARD JOSEPH
IPC: H04B10/2581
Filed: 1998-09-08
Abstract: An optical switch device for switching test signals to the terminated ends of a predetermined number of optical fibers in an optical fiber cable. The optical switch device contains a first optical port for receiving the test signals. A plurality of optical second ports are provided, wherein the number of second optical ports is less than the number of optical fibers in the cable to be tested. The optical connector ports are connected to the terminated ends of optical fibers in the optical cable by a plurality of detachable adapters. Each of the adapters has a base connector that selectively engages one of the second optical ports on the optical switch device. A plurality of optical leads extends from the base connector of the adaptor. The optical leads terminate with a plurality of plugs that are adapted to selectively engage some of the terminated ends of the optical fibers in the optical cable. The plugs at one end of the adapters are first connected to the optical fibers in the optical cable. The base connectors coupled to the plugs are fewer in number than optical fibers by a ratio of at least 1:2. The base connectors are then connected to the optical switch, thereby allowing for a connection operation that is more time efficient and space efficient than was previously available.
Patent CA-2247263-A1 (CA)
Title: Pochette pour photographie du type dit "avance"
Inventor: WERNER RICHARD S
IPC: G03D15/00
Filed: 1997-02-21
Abstract: L'invention concerne une pochette (10) pour photographies et pour une boîte d'expédition/rangement de cartouches de films du type utilisé en photographie dite "avancée". Cette pochette comprend des premier et second éléments couvrants (12, 14) en forme de feuille.
Patent CA-2248339-A1 (CA)
Title: Procede et appareil de generation d'une transformee
Inventor: BRANDIN CHRISTOPHER
IPC: H03M13/01
Filed: 1997-03-04
Abstract: Le générateur de transformée (20) de la présente invention comporte un port d'entrées/sorties (22) auquel est couplé un contrôleur (24), le port d'entrées/sorties (22) recevant les transformées et les chaînes d'entrées et restituant en sortie de nouvelles transformées. Une mémoire de consultation (26) couplée au contrôleur (24) permet de déterminer les nouvelles transformées. Un module à décalage (28) et un combinateur (30) également couplés au contrôleur permettent, en combinaison avec la mémoire (26), de déterminer une nouvelle transformée.
Patent CA-2250062-A1 (CA)
Title: Method for obtaining pure enantiomers of a pyridazinone derivative
Inventor: LEHTONEN JORMA
IPC: C07B53/00
Filed: 1997-03-27
Abstract: A method for preparing optically substantially pure (-)-[[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]hydrazono]propanedinitrile from racemic 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone intermediate is described. The end product is useful as a cardiotonic agent. A  novel crystalline polymorphic form of the end product is also described.
Patent CA-2250571-A1 (CA)
Inventor: ROSSIER CLAIRE
IPC: G02C7/06
Filed: 1998-10-15
Abstract: A multifocal ophthalmic lens comprising a far vision region, a near vision region and an intermediate vision region is provided having a high near vision region and a wide vision field in the near vision region, the intermediate vision region and in the far vision region. Progression is gentle although the distance between a mounting center on the lens and the point where power addition is 85% higher than power addition at a far vision control point is less than 16 mm, while simultaneously maximum cylinder inside a 20 mm radius circle centered on a geometrical center of the lens is kept at a low value.
Patent CA-2251313-A1 (CA)
Title: Inhomogeneous connections
Inventor: ANDERSSON STAFFAN
IPC: H04Q3/66
Filed: 1997-04-14
Abstract: In a call and connection separated network (10) that comprises a number of domains (14-17) the network has a layered structure that comprises a connection layer and a service layer. In each connection domain there is a connection control process for controlling hardware. In accordance with the invention an external network (11) is used to carry a transmission channel that originates from or terminates in the call and connection separated network. Such calls are referred to as inhomogeneous calls. A connection control process at the originating side of an inhomogeneous call uses a routing number to route said transmission channel through the external network. The routing number is administered by a service used by the control process at the terminating point of the call. The routing number, in a manner known per se, follows the signalling protocol of the external network.
Patent CA-2253958-A1 (CA)
Inventor: MOETTELI JOHN B
IPC: G08G1/054
Filed: 1998-10-22
Abstract: A traffic law enforcement system having two or more enforcement and at least one central computer connected via network devices. The enforcement units are spaced apart a given distance and each has a license plate reader. The central computer receives inputs from the enforcement units, including license plate numbers of passing vehicles. The enforcement units and the central computer cooperate to calculate an average velocity of a vehicle which passes between enforcement units by using the inputs of a) minimum-travel-time-drivable distance between enforcement units which transmitted license plate numbers, b) posted speed limit data between enforcement units which transmitted matching license plate numbers, and c) time lapsed between the transmission of the matching license plate numbers to the central computer.
Patent CA-2255178-A1 (CA)
Inventor: RENNER JOHN S
IPC: G06T11/20
Filed: 1998-12-03
Abstract: A multiple master typeface can generate and display kanji characters.  The graphical elements of the characters in the typeface are classified into shape types, and a glyph set is provided for each shape type.  Each glyph set contains base glyphs which represent the variations in the shape type.  To generate the character, the shape type of and position of each element in the character is identified.  For each element in the character, a weighting factor is determined for each base glyph in the glyph set for the shape type of that element.  A composite element is created from the base glyphs in the glyph set for the shape type of that element.  The relative contribution of each base glyph to the composite element is determined by the weighting factors determined for that element and that base glyph.  To display the character, the composite elements are placed in the identified positions.  An instance of a character may be generated from the master characters by interpolating between the master characters on an element by element basis.
Patent CA-2255556-A1 (CA)
Inventor: BEAUREGARD GHISLAIN
IPC: E04B9/04
Filed: 1998-12-14
Abstract: A foam core panel having closed edges is provided.  An inner foam core is surrounded by a mixture of resin and fiberglass which is cured to a rigid consistency.  The sealed surface panel is impermeable to moisture, chemicals and microbial contamination.  The sealed panel can achieve up to a 40 pound uniform load capacity.
Patent CA-2256463-A1 (CA)
Inventor: OSWALD WOLFGANG
IPC: B65D81/05
Filed: 1998-05-14
Abstract: The invention relates to flexible packaging for objects, consisting of an inflatable hollow body (4) which forms a double-walled, tubular-shaped body, the packaged object (7) being fixed in said hollow body after it has been inflated. The shape of the hollow body (4) can be altered as required using folding and joining techniques, so that the invention provides not only transport packaging for objects with a geometrically simple or complex shape, but also a flexible and effective protective covering for individual objects which are in danger of being damaged, including stationary objects. The inventive packaging is characterized in that it is easy to handle, takes up little storage space before and after use, is light and is easy to recycle since no composite materials are formed.
Patent CA-2258192-A1 (CA)
Inventor: MAHMUD KHALED
IPC: C09D11/00
Filed: 1997-06-05
Abstract: Ink and coating compositions are disclosed comprising a silicon-treated carbon black. The silicon-treated carbon black may have at least one attached organic group, and the ink and coating compositions may comprise a combination of silicon-treated carbon black products, with and/or without at least one attached organic group, and untreated carbon black. Methods are disclosed for improving the jetness, improving the blue tone, improving the platewear, reducing the premix residue, modifying rheological properties, or improving waterfastness, of ink and coating compositions by incorporating therein silicon-treated carbon black.
Patent CA-2258280-A1 (CA)
Inventor: BAHRMANN HELMUT
IPC: B01J31/22
Filed: 1997-06-18
Abstract: The invention relates to a catalyst containing rhodium and a compound of the general formula (I), in which R1, R2 and R3 are identical or different and independently of each other are hydrogen, an alkyl group or alkoxy group with 1 to 4 carbon atoms, an alkenyl group with 2 to 4 carbon atoms, or R1 and R2 including the carbon atoms connected therewith in each case form a ring with 6 carbon atoms, m and n independently of each other are 0 or 1, and (m+n) is equal to 1 or 2, and R is an unsubstituted phenyl radical or naphthyl radical or a phenyl radical or naphthyl radical substituted by an alkyl group with 1 to 4 carbon atoms, an amino group or dialkyl amino group with a total of 2 to 8 carbon atoms. The invention also relates to a process for preparation of aldehydes by reaction of an olefinic compound having 2 to 20 carbon atoms with carbon monoxide and hydrogen in the presence of said catalyst.
Patent CA-2259787-A1 (CA)
Title: Smart card reader and transaction system
Inventor: FORTIER STEPHANE
IPC: G07F7/10
Filed: 1999-01-19
Abstract: A smart card reader and transaction system which uses the voice path of a switched telephone network to effect smart card transactions are described. The smart card reader may be used with either a regular telephone or an ADSI telephone. If the telephone is not a handsfree set, the smart card reader is preferably connected between the base set and the handset. If the telephone is a handsfree model, the card reader is positioned between the base set and the switched telephone network. A smart card application server controls the smart card reader and switches it between a user mode and a card communications mode. Most applications software resides on the application server so that the smart card reader is simple to construct and inexpensive to manufacture. The advantage is a simple, portable, inexpensive yet reliable system adapted to be owned and used by the general public.
Patent CA-2261933-A1 (CA)
Inventor: KIM JONG C
IPC: H04N7/173
Filed: 1997-07-24
Abstract: An asymmetric network system manages bandwidth allocation and configuration of remote devices (22) in a broadband network (20). A modular architecture of the system permits independent scalability of upstream and downstream capacity separately for each of the upstream and downstream physical paths. Allocation of downstream bandwidth to requesting devices is made according to bandwidth utilization by other devices, bandwidth demand by the requesting remote device (22), class or grade of service by the requesting remote device (22) or bandwidth guaranteed to other remote devices (22). Configuration parameters remotely managed by the network include device addresses (global and local) transmission credit values, upstream channel assignment and upstream transmit power level. Further, management of device configuration profiles and bandwidth allocation occurs through control and response packets respectively generated by the network and the remote devices (22) according to network operating software located at both ends.
Patent CA-2262107-A1 (CA)
Title: Detachable pulley cover structure
Inventor: KUHN JOHN BOYD
IPC: A01D34/76
Filed: 1999-02-25
Abstract: A detachable pulley cover structure is provided for use with a rotary mower.  The structure includes a generally circularly shaped composite cover member adapted to fit flush with the top of a mower deck and shield the pulley drive area, headed pin means fixed to the mower deck are received in slotted openings which are radially spaced about the cover member to permit the cover member to be quickly and easily attached to the deck. An upstanding pin is also attached to the mower deck and receivable in an opening in the cover member. A locking ring is then received in an opening in the upstanding pin to secure the cover member in place on the deck. Several alternate embodiments of the detachable pulley cover structure are disclosed and each provide various deck mounted attaching forms and cover member openings that permit the cover member to be quickly and easily attached or removed without the need for tools. The simple shape and form of the cover member and its attaching structures allow it to be used with a variety of deck configurations and sizes.
Patent CA-2263054-A1 (CA)
Title: Adapter for mounting a fluid handling device on a catheter tubing
Inventor: STROWE ROBERT J
IPC: A61M39/00
Filed: 1999-02-26
Abstract: An adapter of the present invention useful for attaching a fluid handling device to a catheter includes a body having a proximal end, a distal end and an open passageway therethrough. The passageway includes a seat to receive the catheter and a cavity distal to the catheter seat. There is a gasket disposed in the cavity to form a substantially fluid tight seal about the catheter when the catheter is positioned on the catheter seat. The adapter further includes a retainer, disposed on the distal end of the body over the gasket with an opening therethrough that is substantially aligned with the passageway. The opening is sufficient to allow the catheter to pass through into the passageway to engage the gasket and the catheter seat. The retainer has a plurality of flexible projections into the opening that are sized and shaped to engage the catheter and be proximally deflected by the placement of the catheter on the catheter seat. There is a rotatable collar disposed over the retainer on the proximal end of the body, with an open port therethrough that is substantially aligned with the passageway to allow placement of the catheter into the passageway. The collar has a plurality of proximal protuberances disposed to engage the flexible projections and to prevent distal flexion of the flexible projections on the retainer when the collar is in a first position with respect to the body thus to retaining the catheter in the adapter for attachment to a fluid handling device. Additionally, the protuberances are disposed not to engage the flexible projections when the collar is rotated to a second position with respect to the body thereby to allow a distal flexion of the projections and a withdrawal of the catheter from the adapter.
Patent CA-2265695-A1 (CA)
Inventor: THOMASSON FRED Y
IPC: F22B37/42
Filed: 1997-09-15
Abstract: A method and system are disclosed for detecting an occurrence of an event in a target system having at least one operational variable that provides an indication of one or more conditions of the target system which change in response to the event. The method comprises the steps of: (a) periodically calculating short and long term averages of sequentially recorded values of the operational variable, the long term average including values in addition to those included in the short term average; (b) calculating the difference between the short and long term averages; and (c) determining the occurrence of an event based upon the difference by performing a statistical evaluation selected from the group consisting of determining the significance of the difference, monitoring a particular pattern of differences, monitoring change in the differences, and combinations of two or more thereof.
Patent CA-2267810-A1 (CA)
Inventor: DECKER OWEN H
IPC: C08K3/22
Filed: 1999-03-31
Abstract: A silicone resin for forming a coating powder has organic substitutents selected from the group consisting of phenyl, methyl, C2 through C6 alkyl and mixtures thereof; a viscosity of between about 500 and about 10,000 cps at 150°C; a condensable hydroxyl content of between about 2.0 and about 4.5 wt%; a glass transition temperature of about 55°C or above; and about 0.2% or less of organic solvent.