baber/WOPTO huggingface dataset:
Patent CA-2194491-A1 (CA)
Title: Character recognition system identification of scanned and real time handwritten characters
Inventor: KADASHEVICH A JULIE
IPC: G06V30/182
Filed: 1996-03-27
Abstract: A handwritten character recognition system that includes a document scanner for generating scanned images of a previously created document containing handwritten characters, and a pen and digitizing tablet for real time entry of handwritten characters by a user. The handwritten character recognition system includes an image processor connected from the document scanner for receiving the scanned image of a previously created document and generating one or more ordered cluster arrays. The ordered cluster arrays contain spatially ordered coordinate arrays of skeletal image ares representing and corresponding to the strokes of the handwritten characters wherein the spatial order represents an induced time ordered sequence of creation of the strokes of the handwritten characters that emulates the sequence of creation of the character strokes. A low level recognition processor is connected from the time order in-duction processor for receiving the ordered cluster arrays and generating a sequential character array wherein the sequential character array contains a character list for each ordered cluster array and wherein each character list contains at least one character identification representing a possible interpretation of the corresponding ordered cluster array. A linguistic post processor may be connected from the low level recognition processor for receiving the sequential character array and generating an output string representing the most probable interpretation of the handwritten characters of the document.
Patent CA-2195242-A1 (CA)
Title: The use of heterocyclic compounds
Inventor: HELLENDAHL BEATE
IPC: A61K31/33
Filed: 1995-07-14
Abstract: The present invention relates to the use of heterocyclic compounds of formula (I) Het - A - B - Ar in which Het A, B and Ar have the meanings given in the description. The compounds of the invention have a high affinity for the dopamine-D3-receptor and are therefore usable for the treatment of diseases responding to dopamine-D3-ligands.
Patent CA-2195625-A1 (CA)
Inventor: GARBARINO JOAN
IPC: C07K19/00
Filed: 1995-07-24
Abstract: Stabilized ubiquitin-lytic peptide fusion polypeptides and a method of making the same by sub-cloning nucleic acid sequences coding for lytic peptides into a plasmid vector comprising a promoter and ubiquitin polypeptide coding sequence, wherein the ubiquitin polypeptide sequence is linked to the 5' end of the lytic peptide nucleic acid sequence and is translated as a fusion polypeptide.
Patent CA-2195837-A1 (CA)
Title: Adjusting contrast in anti-aliasing
Inventor: ARNOLD R DAVID
IPC: G06K15/02
Filed: 1997-01-23
Abstract: A method and apparatus for processing a character for anti-aliased display on a raster output device. A set of density values is computed for a set of raster positions to represent the character and the density values of the set are scaled to extend their range upward toward a maximum density value, whereby generally at least one of the density values of the set becomes the maximum density value. In one embodiment, the set of density values is computed from a rendering of the character at resolution higher than the resolution of the output device. In another embodiment, the character is created by a font having font metrics including a reference dimension, and the density values are scaled by computing adjusted values as a non-decreasing function of the original values, the function being defined to compute a maximum adjusted density value for at least one non-maximum density value.
Patent CA-2196363-A1 (CA)
Title: Ventilation system for an ac machine having overhanging salient poles with juxtaposed shrouds
Inventor: VAN DUYN MARTIN
IPC: H02K9/06
Filed: 1997-01-30
Abstract: A method of improving the airflow through a low to medium speed salient pole dynamoelectric machine DEM is disclosed. The rotor rim on which the salient poles are mounted is shortened in comparison to prior art structures so that the ends of the salient poles (and the rotor windings) protrude a substantial distance beyond the edge of the rim. A stationary or rotating shield is placed in juxtaposed relationship with the rotating ends of the salient poles to provide an enclosure so that the protruding ends of the salient poles can function as a crude radial fan.
Patent CA-2196808-A1 (CA)
Title: Fluidized bed reactor for the heat treatment of waste material
Inventor: MORIN JEAN-XAVIER
IPC: F23G5/30
Filed: 1996-06-05
Abstract: Fluidized bed reactor for the heat treatment of waste material and the heat exchange between circulating solids and a heat exchange member such as a steam overheater, the reactor being of the type comprising an axial circulating fluidized bed (18-18') and at least a first (28) and a second (48) fluidized dense side beds set respectively along first (11) and second (12) walls of the reactor envelop, characterized in that the supply of waste material is carried out on at least one point of said first wall (11) over said first bed (28), said reactor comprising also at least one conduit for the extraction of heavy non-fluidizable elements, said extraction conduit being located at the base of said first fluidizing bed.
Patent CA-2197435-A1 (CA)
Inventor: GABOURY LOUIS
IPC: A61K41/00
Filed: 1995-08-16
Abstract: L'invention concerne de nouveaux dérivés de rhodamine photo-activables destinés à accroître la production à haut rendement quantique et la production d'oxygène singulet lors d'une irradiation avec une lumière alors qu'une rétention différentielle souhaitable de rhodamine est maintenue entre des cellules normales et cancéreuses. Ces dérivés sont choisis dans le groupe consistant en 4,5-dibromorhodamine 123 (2-(4,5-dibromo-6-amino-3-imino-3H-xanthèn-9-yle)-hydrochlorure d'ester de méthyle d'acide benzoïque); 4, 5-dibromorhodamine 123 (2-(4,5-dibromo-6-amino-3-imino-3H-xanthèn-9-yle)-hydrochlorure d'ester d'éthyle d'acide benzoïque); 4, 5-dibromorhodamine 123 (2-(4,5-dibromo-6-amino-3-imino-3H-xanthène-9-yle)-hydrochlorure d'ester d'octhyle d'acide benzoïque); 4,5-dibromorhodamine 110 n-butyl ester (2-(4,5-dibromo-6-amino-3-imino-3H-xanthèn-9-yle)-hydrochlorure de n-butyle ester d'acide benzoïque); Rhodamine B n-butyle ester (2-(6-éthylamino-3-éthylimino-3H-xanthèn-9-yle)-hydrochlorure de n-butyle ester d'acide benzoïque; et leurs dérivés photo-activables. La photo-activation de ces dérivés induit la mort cellulaire tandis que ces dérivés non activés sont sensiblement non toxiques pour les cellules. L'invention concerne aussi l'utilisation des dérivés photo-activables décrits, pour la thérapie photodynamique d'un cancéreux par destruction des cellules cancéreuses humaines, où on obtient des niveaux intracellulaires appropriés de ces dérivés puis on les irradie avec une lumière d'une longueur d'onde appropriée. L'invention concerne aussi un procédé de thérapie photodynamique concernant un patient soufrant de leucémies ou de myélomes ou lymphomes multiples disséminés.
Patent CA-2199467-A1 (CA)
Title: Guide system for an automotive vehicle with separate, mobile transmitter unit and method of controlling the vehicle
Inventor: BAIL GUENTHER
IPC: A63B55/60
Filed: 1995-09-06
Abstract: The invention concerns a golf buggy and a mobile transmitter unit which is carried by the golfer. The buggy and the transmitter unit each comprise a receiver and evaluating unit provided with a computer for a satellite-controlled positioning system. The two receiver and evaluating units calculate the respective position of the golfer and the buggy from the signals received cyclically from the satellite system. The mobile transmitter unit is provided with a high-frequency hand-held transmitter by means of which the positions of the golfer can likewise be transmitted cyclically to the buggy. In each case the buggy computer calculates the direction and distance of the golfer and stores these data until it travels the stored path in response to a signal. The buggy remains at a predetermined distance from the golfer. If a stationary reference transmitter, which corrects the golfer and buggy position data received from the satellite system, is also used, given areas of the golf course can be blocked off as areas in which the buggy may not travel.
Patent CA-2200109-A1 (CA)
Inventor: JACOBSEN STEPHEN C
IPC: G08C21/00
Filed: 1990-10-03
Abstract: Displacement measuring apparatus for measuring the displacement and movement of an object includes a sensor having an operative surface and circuitry for producing an electrical output signal whose value is dependent upon the area of the operative surface covered by an electrical/magnetic field producing member.  The apparatus also includes an elongate, flexible band capable of producing an electric/magnetic field, where the band is attached at one end to the sensor to roll over and cover or unroll from over and uncover the operative surface as the object whose displacement is to be measured is moved.  The value of the electrical output signal produced by the circuitry is thus dependent upon the area of the operative surface covered by the band and thus by the position and movement of the object.
Patent CA-2201538-A1 (CA)
Title: Laser device with piercing tip for myocardial revascularization procedures
Inventor: HARMAN STUART D
IPC: A61B17/00
Filed: 1997-04-02
Abstract: The  method   for   combined  mechanical/laser  myocardial revascularization of a human heart includes: inserting a mechanical piercing device and an elongated flexible lasing apparatus into the chest cavity of a patient; mechanically piercing, micro-tearing or spreading the epicardium of the heart; and then lasing from beneath the epicardium through the myocardium.  The apparatus is guided to an area exterior to a ventricle of the patient's heart, and the distal end of the optical fiber apparatus is placed internal to the exterior wall of the heart through an opening which has been created by mechanically piercing, micro-tearing or spreading the epicardium,  so that the myocardium and not the epicardium is irradiated with laser energy to allow passage of said optical fiber distal end or said laser energy into the left ventricular cavity without causing a laser irradiation of the epicardium which might be a cause of operative bleeding and for better allowing the sealing of the epicardium after the apparatus is removed.   The apparatus includes a hand-held device controllable by the surgeon having a removable distal head end with a replaceable piercing member and utilizing a vacuum source to provide a suction force at the head end.
Patent CA-2202809-A1 (CA)
Title: Gas cylinder thermal relief valve
Inventor: SHALKEVICH MARK
IPC: F16K17/38
Filed: 1997-04-16
Abstract: A thermal relief valve for a gas cylinder has a body with an inner wall defining a passageway for flow of fluid between inlet and outlet.  A piston within the bore moves between a first position arresting flow from inlet to outlet, and a second position permitting flow from inlet to outlet.  A restricting assembly for arresting movement of the piston towards the second position includes a thermal sensitive element of suitable eutectic material at the bore inner wall, with protrusions defining a first camming surface, and two or more restricting elements defining a second camming surface positioned to engage the first camming surface.  The thermal sensitive element, at lower temperatures, maintains the second camming surface for engagement with the first camming surface, thereby to arrest movement of the piston, and, at higher temperatures, permits movement of the restricting elements into a position with the second camming surface spaced from engagement with the first camming surface, thereby to permit movement of the piston to release fluid.
Patent CA-2208508-A1 (CA)
Inventor: TAMURA KAZUHIKO
IPC: A61K31/427
Filed: 1995-12-22
Abstract: Cette invention concerne un composé, lequel peut être représenté de manière générale par la formule suivante (I), ainsi que les stéréo-isomères, isomères optiques et sels pharmaceutiquement acceptables dudit composé, où: R>1<, R>2<, R>3< et R>4< sont chacun de l'hydrogène, etc.; R>6< et R>7< représentent chacun un alkyle inférieur éventuellement substitué; A représente un groupe dont la formule générale est la suivante (II), où R>5< représente de l'hydrogène, etc.; et n est un nombre entier entre 2 et 6. Ces composés sont capables d'arrêter la formation d'oxygène actif ainsi que l'augmentation de calcium intracellulaire, et peuvent donc être employés comme médicaments contre les maladies ischémiques.
Patent CA-2212768-A1 (CA)
Title: Apparatus and method for morselating and removing tissue from a patient
Inventor: HOOVEN MICHAEL D
IPC: A61M1/00
Filed: 1996-02-06
Abstract: This invention is a method for morselating and removing the morselated tissue (14) through a small incision (10) comprising in general inserting a tissue container (12) into the body cavity of a patient through an incision (10), placing resected tissue (14) in the vessel (12), inserting a morselator (16) having a rotatable electrode thereon through the incision (10) and into the vessel (12), morcelating the tissue and removing the tissue from the containment vessel (12) and the body. An apparatus (16) for morselating and removing tissue through a small incision (10) within the body cavity of a patient is also disclosed and may comprise a tissue container (12) having an inner chamber for containing resected tissue (14), and a morselator (16) having a proximal end (21) and a distal end (17) carrying an electrode (36) wherein the distal end (17) is insertable into the body cavity and containment vessel (12) for morselating resected tissue (14).
Patent CA-2213370-A1 (CA)
Title: Achievement plaque and method of making same
Inventor: BANMAN JOHN
IPC: B44C5/04
Filed: 1997-08-19
Abstract: An achievement award including a novel, substantially transparent, injection molded acrylic plaque and a supporting base therefor.  The display plaque is provided with ornamental designs comprising either or both a fossil-like, three-dimensional decorative design or image which appears to be embedded in the central body portion of the plaque and an upstanding ornamental design which extends outwardly from the front face of the plaque.  The display plaque uniquely includes strategically located bevels that give the plaque the appearance of expensive cut glass and, at the same time, functions to optically mask the mold lines which are formed during the injection molding process.  The mold of the invention for use in injection molding the plaque with the fossil-like design includes several different types of mold inserts that can be positioned within the mold cavity so as to produce fossil-like designs within the body of the plaque of various shapes such as the shape of a golfer, a bowler, a basketball player and other types of athletic figures.
Patent CA-2213642-A1 (CA)
Title: Method and apparatus for cutting superposed webs
Inventor: WIERSCHKE LARRY D
IPC: B26D5/20
Filed: 1996-02-27
Abstract: A method of cutting an elongated multi-ply flat surfaced ribbon of web material (19) which includes advancing the ribbon along a linear path while rotating a pair of cantilever-mounted drums (29, 29') on opposite sides of the path to flank the ribbon flat surfaces, the drums each having a plurality of axially extending slots in the periphery thereof. A saw blade (23) is adjacent the path and orbits through the path so as to have the blade orbit intersect the drum slot orbits to transversely cut the ribbon while the saw is advancing parallel to the linear path.
Patent CA-2215446-A1 (CA)
Title: Driveshaft assembly having a noise reduction structure
Inventor: BREESE DOUGLAS E
IPC: F16C3/02
Filed: 1997-09-15
Abstract: A noise reduction structure for an aluminum-based driveshaft tube includes a generally cylindrical member having a predetermined length. The noise reduction structure is disposed within a driveshaft tube in a press fit relationship with the inner surface of the tube. In general, the noise reduction structure is positioned within the driveshaft tube at a location where the amplitude of a standing wave caused by the reflection of the sound waves back and forth along the driveshaft tube is at its maximum value. The length of the noise reduction structure may be about 10% or less of the value of the length of the driveshaft tube. In a first embodiment, the noise reduction structure is formed from a polymeric foam material having a density of less than about 10 lb/ft3. Preferably, the material has a density in the range of about 2 lb/ft3 to 10 lb/ft3, and more preferably, in the range of about 3 lb/ft3 to 7 lb/ft3. One type of material which is particularly well suited for this invention is a polymeric cushioning foam having a density of about 5 lb/ft3. In a second embodiment, the noise reduction structure is foamed from a plurality of relative long cylindrical members that are press fit within the driveshaft tube and are located equidistantly from one another. Each of these cylindrical members is preferably foamed from a polyether material having density of at least 1.4 lb/ft3, and most desirably are formed having a density of 1.5 lb/ft3. In a third embodiment, the noise reduction structure is formed from a single elongated cylindrical member that is press fit within the driveshaft tube and is preferably formed from a polyether material having density of at least 1.4 lb/ft3, and more desirably is formed having a density of 1.5 lb/ft3. One or both of the end portions of the driveshaft tube may be formed having a reduced diameter.
Patent CA-2217142-A1 (CA)
Inventor: TELLER DAVID FRANKLYN
IPC: B22D11/06
Filed: 1996-04-23
Abstract: Substrat de trempe permettant la solidification rapide d'un alliage en fusion en une bande à structure microcristalline ou amorphe. Le substrat est composé d'un alliage conducteur thermiquement et sa structure est sensiblement homogène.
Patent CA-2217662-A1 (CA)
Title: Seamless fluid flow control system
Inventor: DAY GORD M
IPC: A61C1/00
Filed: 1997-10-07
Abstract: This invention relates to a seamless system for controlling the flow of fluids, such as liquids or compressed air, through a non-fragmented length of flexible tubing. It incorporates into a single system a number of functions currently performed with separate valves within conventional dental handpiece fluid flow control units. The invention can be fitted to an existing flexible fluid supply line, within a dental delivery system without destructive insertion or removal of any intermediary parts and without contact with the fluid medium itself. The invention is conceived to accommodate from the outside, three contiguous portions (a first, an intermediate and a second portion) of a non-fragmented length of flexible tubing. It comprises a tube holder for securing the first tubing portion, a tube guide for guiding the movement of the second tubing portion relative to the first portion thereby providing selectively a folding or unfolding action to the intermediate tubing portion, so as to prevent fluid flow in said tubing by folding the intermediate portion into a closed position, or to permit flow by unfolding the intermediate portion into an open position. It further comprises actuation means for moving back and forth the second tubing portion along the tube guide.
Patent CA-2218014-A1 (CA)
Title: Sculling compensation in strapdown inertial navigation systems
Inventor: MARK JOHN G
IPC: G01C21/16
Filed: 1997-10-10
Abstract: The invention is a method and apparatus for compensating for sculling in a strapdown inertial navigation system. The method operates on a sequence of inputs .DELTA.V B(n) derived at times n.DELTA.t from the outputs of one or more accelerometers. Separately compensated quantities .DELTA.V Bc(m,p) calculated at times (pJ+1/2).DELTA.t for M values of m are obtained by summing A(m,k).DELTA.V B(pJ-j-k) over k from 0 to K-1 and over j from 0 to J-1 where the constants A(m,k) are chosen to minimize sculling error in the individual .DELTA.V Nc(m,p) quantities where d .DELTA.V Nc(m,p) is the representation of .DELTA.V Bc(m,p) in the navigation frame of reference. The final compensated quantity .DELTA.V Bc(p) is obtained by summing B(m).DELTA.V Bc(mp) over m where the constants B(m) are chosen to minimize sculling error in .DELTA.V Nc(p) where .DELTA.V Nc(p) is the representation of .DELTA.V Bc(p) in the navigation frame of reference.
Patent CA-2219350-A1 (CA)
Title: Heat-seal splicing assembly and method
Inventor: SEARLES TIMOTHY J
IPC: B29C65/74
Filed: 1996-05-02
Abstract: A method and web splicing assembly (12) for heat-seal splicing together a trailing end of running first, two-sided plastic material web (28) and a leading end of a second, two-sided plastic material web (34), and then for heat-seal splicing together a leading end of third, two-side plastic material web (42) and the trailing of the then running, second web (34). The web splicing assembly (12) includes first and second splicing subassemblies (14, 16). Both sub-assemblies (14, 16) have relatively movable slide bars (112) and relatively fixed nip bars (84). The subassemblies are each movable between a first position and a second position. Each slide bar (112) carries a heated wire (146) that heat-severs the clamped web portions along a localized area that extends across the web portion and heat-seals parts of the clamped web portions together adjacent to the area.
Patent CA-2219381-A1 (CA)
Title: Modulated backscatter sensor system
Inventor: PIDWERBETSKY ALEX
IPC: A61B5/024
Filed: 1997-10-27
Abstract: In accordance with the present invention, a radio communication system includes an Interrogator for generating and transmitting a radio signal. One or more Tags contained within the radio communication system receive the radio signal. ABackscatter Modulator modulates reflection  of the radio signal using  a subcarrier signal, thereby forming a reflected modulated signal. The Interrogator receives and demodulates the reflected modulated signal. Based upon the characteristics of the demodulated signal the Interrogator can determine the identity of the Tag, and the relative velocity of the Tag with  respect to the Interrogator. The Interrogator can also determine if motion exists in the vicinity of the Interrogator, even no Tag is present, without the need for a separate motion detection system. The characteristics of the demodulated signal, can also be used to determine the characteristics of motion of the Tag, such as the vibrational frequency. Alternate embodiments allow the Interrogator to transmit a first information signal to one or more tags, specifying which Tags should respond using Backscatter Modulator means, so that the characteristics  of only particular Tags can be determined. Further alternate embodiments allow the Tag to input analog data, and perform analog to digital conversion of that data. This data may be then transmitted  to the Interrogator using Modulated Backscatter. Alternately, this data may be used as input to calculations performed in the Tag in order to analyze the frequency characteristics of the analog input. The Tag can also, based. upon the results of these calculations, identify an abnormal condition and notify the Interrogator of the existence of such a condition.
Patent CA-2219586-A1 (CA)
Title: Hitch mountable bicycle carrier
Inventor: BRUNGARDT KERVIN
IPC: B60R9/10
Filed: 1997-10-28
Abstract: A bicycle rack adapted to be detachably mounted to vehicle via a standard trailer hitch receiver with the bicycle rack having a vertical support pivotally connected at its lower end to a base assembly with a bicycle carrier assembly connected to the upper end of the vertical support. The bicycle carrier assembly includes two generally rectangular plates detachably connected together adapted to receive the crossbars of bicycles. A pin releasably locks the vertical support in an upright position. Upon removal of the pin the vertical support pivots rearwardly away from the vehicle. Tail lights are mounted on the carrier assembly.