baber/WOPTO huggingface dataset:
Patent CA-2201516-C (CA)
Title: Method and system for a user to manually alter the quality of previously encoded video frames
Inventor: COOKSON CHRISTOPHER J
IPC: H04N7/30
Filed: 1996-04-19
Granted: 2003-06-10
Abstract: A method and system in which a user manually changes the quality of portions of video frames after the frames have been previously encoded. Regions of one or more frames of video are selected to have an increased quality, a decreased quality, or a quality which should not be altered (174). After the regions are defined by a user, the frames of video is digitally re-encoded and inserted into the digitally encoded data stream in place of the previously encoded data (182 and 190). In order to easily remove a previously encoded frame from the data stream and replace it with a newly encoded frame having regions of quality defined by the user, it is preferable to have the newly encoded frame consume the same number of bits as the previously encoded frame.
Patent CA-2211172-C (CA)
Title: Head rest assembly for spas and whirlpools
Inventor: CLARKE THOMAS W
IPC: A61H23/04
Filed: 1996-01-03
Granted: 2007-10-09
Abstract: A head rest assembly is provided for use in conjunction with a bathing fixture such as a hydro-massage whirlpool. A  pillow is provided which can be easily connected and supported by the jet nozzle assembly. A support bracket is partially enclosed in the pillow for connection with the nozzle assembly. The nozzle assembly has a living hinge feature which allows adaptation to various curvatures of the tub wall. A magnet can be connected to a bracket and a reed switch is connected to the nozzle assembly which serves as a safety feature.
Patent CA-2215332-C (CA)
Inventor: FREUND MICHAEL S
IPC: G01N33/497
Filed: 1996-03-26
Granted: 2006-11-21
Abstract: L'invention concerne des capteurs chimiques capables de déceler les échantillons à analyser dans des fluides et comprenant des éléments conducteurs de premier rang et de second rang (par exemple fils électriques) électriquement reliés et séparés par une résistance chimio-sensitive, faisant office de trajet électrique entre les éléments conducteurs. La résistance comprend une alternance de régions non conductrices (grâce à un polymère organique non conducteur) et de régions conductrices (grâce à un matériau conducteur) positionnées transversalement par rapport au trajet électrique. La résistance crée une différence de résistivité entre les éléments conducteurs au contact d'un fluide contenant un échantillon à analyser dans une certaine concentration et les éléments conducteurs en contact avec un fluide contenant l'échantillon à analyser dans une autre concentration. Ces mosaïques de capteurs comportent au minimum deux capteurs équipés de résistances chimio-sensitives n'offrant pas la même résistivité. On fait varier la sensibilité chimique des capteurs en faisant varier de façon qualitative ou quantitative la composition de la région conductrice ou de la région non conductrice. On peut construire un capteur électronique capable de déceler dans un fluide l'échantillon à analyser en utilisant ces mosaïques parallèlement à un instrument de mesure électrique relié électriquement aux éléments conducteurs de chaque capteur.
Patent CA-2216484-C (CA)
Inventor: MURPHY RICHARD F
IPC: B61H13/26
Filed: 1997-09-25
Granted: 2001-11-27
Abstract: A brake beam wear plate for mounting in brake beam guide brackets of railroad car truck side frames having side walls of varying thicknesses to define a slideway for the brake beam lugs providing a sloppy fit and a path of movement to obtain the ideal clasping angle and alignment for the brake shoes with the wheels, and thereby produce better train handling during braking, and uniform wearing ofthe shoes to enhance shoe life and reduce maintenance.
Patent CA-2225250-C (CA)
Title: Bicyclic amino derivatives and pgd2 antagonist containing the same
Inventor: OHTANI MITSUAKI
IPC: C07D277/56
Filed: 1996-06-19
Granted: 2005-03-22
Abstract: The present invention is directed to a compound of the formula (I) <IMG> wherein <IMGS> for example, a compound below: <IMG> wherein R1 is CH3, H or Na; and X1-X2-X3 is <IMG> or its salt or a hydrate thereof. Such a compound is useful as PGD2 antagonist and can be used as a drug for treating diseases in which mast cell dysfunction is involved, for example, systemic mastocytosis and disorders of systemic mast cell activation, and also tracheal contraction, asthma, allergic rhinitis, allergic conjunctivitis, urticaria, injury due to ischemic reperfusion, and as an anti-inflammatory agent. It is particularly useful in the treatment of nasal occlusion.
Patent CA-2225978-C (CA)
Inventor: CHECKETTS JED H
IPC: C06D5/00
Filed: 1997-12-29
Granted: 2001-03-20
Abstract: Embodiments of hydrogen generation system of the present invention are all demand systems that are operated to replenish hydrogen gas to a low pressure storage tank or vessel as hydrogen is drawn therefrom, providing a system that is suitable for use as a portable system.  The invention employs electrical and mechanical arrangements that provide for opening an outer coating that has been formed over a reactive material, such as sodium, so as to expose that reactive material to water, generating hydrogen from a chemical reaction therebetween. The electrical system employs a bank of cells, with each cell electrically connected through a controller to a power source and contains a measured volume of a light salt and water solution and a sodium pellet that is coated with aluminum, or other appropriate metal, and provides for passing a current to a select cell to break down the pellet aluminum coating and expose the pellet reactive material to the water to generate hydrogen.   With, in the mechanical system embodiments, sodium pellets are coated with a soft plastic, or the like, and are maintained in water and include a static pressure source to operate, when the hydrogen gas pressure falls below the pressure of that static source, a piston to move a selected pellet into a blade, or the like, to open that pellet to the water to chemical react and generate hydrogen gas to restore the system pressure to a pressure that is greater than that of the static source.
Patent CA-2226774-C (CA)
Inventor: SUETAKE KAZUYUKI
IPC: B60K17/35
Filed: 1998-01-13
Granted: 2001-02-27
Abstract: In a power transmitting system, a clutch drive shaft driven through bevel gears and by an input shaft is laterally extensive and left and right electromagnetic clutches are disposed between opposite ends of the clutch drive shaft and left and right output shafts, respectively. A clutch body heated during the transmission of a power is disposed at a laterally outer location of the system to provide enhanced heat-radiatability, and an annular solenoid is disposed inside the clutch body. A bearing for supporting each of the opposite ends of the clutch drive shaft is disposed radially inside the solenoid. Thus, the lateral dimension of the power transmitting system is reduced.
Patent CA-2227367-C (CA)
Title: Monitoring of a packet telephony device via a control device
Inventor: BUHLER GERHARD
IPC: H04M1/24
Filed: 1998-01-19
Granted: 2002-05-07
Abstract: A control device attached to both a primary packet device (such as a PC-based packet phone) and a network (e.g., telephone network or packet network) provides improved reliability for packet telephony and network maintenance.  The control device may have its own network address separate from that of the packet telephony device.  The control device enables monitoring of the operation of the packet telephony device and basic maintenance, such as re-booting of that device if it is no longer responding to input commands.
Patent CA-2230666-C (CA)
Title: Method and apparatus for frequency planning in a multi-system cellular communications network
Inventor: UDDENFELDT JAN ERIK
IPC: H04J3/00
Filed: 1996-09-06
Granted: 2008-03-25
Abstract: A method and apparatus for frequency planning in a multi-system (A, B, C) cellular communications network is disclosed in which a plurality of systems operate over a frequency range comprising a plurality of frequency bands. The systems (A, B, C) each provide communications services to a plurality of subscribers (660) located within substantially the same geographic region. Each of the systems (A, B, C) is assigned one or more of the network frequency bands for use as control channels (700, 730). The systems then share the unassigned frequency bands to provide communications service (710, 720). The systems may share the frequency bands without coordination or synchronization or, as an alternative, the sharing may be controlled by a processor.
Patent CA-2232261-C (CA)
Inventor: DREYER JOHN F
IPC: F21S2/00
Filed: 1996-10-17
Granted: 2003-05-13
Abstract: Un conduit lumineux (10) cylindrique creux, servant à transporter de la lumière dans une direction sensiblement longitudinale à l'intérieur et à la distribuer le long de son parcours, comprend une paroi cylindrique faite d'une matière transparente. Cette paroi a une surface cylindrique intérieure lisse (14) et une surface cylindrique extérieure (12) qui présente un relief constitué par un système de prismes isocèles placés côte à côte. Les faces de prismes voisins sont dans la direction longitudinale le long de la paroi cylindrique, et elles sont alignées les unes par rapport aux autres sous le même angle de prisme désiré. Les performances de transport de la lumière du conduit, obtenues par la réflexion totale intérieure, et ses performances de distribution de la lumière, en particulier en ce qui concerne les rayons lumineux longitudinaux à fort angle d'incidence, alignés radialement, dans des plans parallèles ou presque parallèles aux prismes, sont rendues optimales en tant que fonction de l'angle .beta. désiré du prisme entre les faces de prismes voisins.
Patent CA-2235341-C (CA)
Title: Producing well artificial lift system control
Inventor: HERSHBERGER MICHAEL D
IPC: E21B47/04
Filed: 1996-11-01
Granted: 2005-04-05
Abstract: A method of producing gas through liquid level detection in an oil or gas well uses various types of artificial lift systems (10) that include subsurface gas lift, beam pumps, progressive cavity pump and submersible pumps. The artificial lift systems (10) are controlled in response to a known liquid level (34) within the wellbore to prevent the well from pumping off and damaging the artificial lift system (10) or from reducing the liquid level (34) in the wellbore to an unnecessarily low level to thereby increase the energy required by the artifical lift system (10) to remove the liquid (32) from the wellbore. The liquid level detection method includes the detection of at least the pressure on a side string tube in the wellbore to determine the level of liquid in the wellbore for automated control of liquid removal from the wellbore to be removed to the surface through a production tube to allow improved gas or oil production, increase artificial lift efficiency and to allow for control of the artificial lift system to prevent damage to the system. Another method measures production from the well in conjuction with automated liquid level control to maximize liquid level in the wellbore without interfering with production. A timing method allows for control of the quantity of gas injected during the gas injection cycle of a subsurface gas lift artificial lift system.
Patent CA-2237035-C (CA)
Inventor: MEYER WOLFGANG
IPC: A61F13/15
Filed: 1996-10-22
Granted: 2002-05-28
Abstract: L'invention concerne un article absorbant jetable comprenant une feuille de support, une feuille supérieure, une zone de répartition/recueil des fluides et au moins une zone de stockage de fluides. Cet article présente une capacité de recueil des fluides de plus de 3,75 ml/sec lors du premier jet, et de plus de 0,5 ml dans le quatrième jet. Sa hauteur, pliée dans le sac d'emballage, est inférieure à 9,9 mm. Cet article se caractérise en ce que la feuille supérieure permet de ne retenir que 0,25 g de fluides, selon les résultats du tests d'humidité et de recueil des fluides réalisés sur la feuille supérieure. En outre, cette zone de recueil/répartition présente une capacité d'égouttage d'au moins 5,0 grammes de fluides par gramme de matière.
Patent CA-2240857-C (CA)
Title: Procede de filtrage du bruit dans des donnees sismiques
Inventor: OZBEK ALI
IPC: G01V1/36
Filed: 1997-01-08
Granted: 2006-09-05
Abstract: La présente invention concerne un procédé de filtrage du bruit dans les signaux sismiques distincts présentant du bruit pendant une durée déterminée ([1, ..., T]). Le procédé consiste à utiliser les signaux sismiques présentant un bruit pour déterminer, pendant la durée considérée, au moins un canal de référence (x(t)) servant de valeur estimée du bruit considéré; à déterminer des coefficients pour M filtres locaux dans le domaine temporel (w(i,t)), ces filtres formant un ensemble de filtres, et M étant un nombre égal ou supérieur à deux, la détermination se faisant en minimisant une fonction de coût (J(t)) représentant une mesure de l'erreur de la sortie de l'ensemble de filtres considéré; et à appliquer à l'ensemble de filtres considéré au moins une valeur estimée (x(t)) afin de déterminer M valeurs estimées filtrées dans le bruit. Les valeurs estimées filtrées sont ensuite multipliées par des fenêtres du domaine temporel (h(i,t)).
Patent CA-2243534-C (CA)
Title: Process for the preparation of d-threo-(r,r)-methylphenidate and recycling of undesired enantiomers by epimerisation
Inventor: LANGSTON MARIANNE
IPC: C07D211/34
Filed: 1997-01-31
Granted: 2003-08-26
Abstract: A process for obtaining a single enantiomer, d or l, of threo-methylphenidat e, comprises resolution of a mixture of the enantiomers; racemisation of the unwanted enantiomer, to give a mixture of all four stereoisomers; and separation of the erythro stereoisomers, to leave the said mixture of enantiomers for resolution.
Patent CA-2249352-C (CA)
Title: Immunoliposomes that optimize internalization into target cells
Inventor: BENZ CHRISTOPHER C
IPC: A61K51/12
Filed: 1997-04-01
Granted: 2012-06-05
Abstract: The present invention provides for immunoliposomes that optimizes internalization of a drug into target cells bearing a characteristic cell surface marker. The immunoliposomes comprise a Fab' domain of an antibody that specifically binds the characteristic marker, an amphipathic vesicle-forming lipid, and a polyethylene glycol derivatized lipid. The invention also provides for growth-inhibiting immunoliposomes that lack growth-inhibiting therapeutic agents and yet are capable of inhibiting the growth and proliferation of target cells.
Patent CA-2251718-C (CA)
Inventor: FELDMAN CHARLES L
IPC: A61N1/362
Filed: 1997-04-22
Granted: 2001-07-10
Abstract: In a process (10) for monitoring patients with chronic congestive heart failure, a high frequency current is passed between electrodes (20) applied to two limbs of a patient. The current, voltage and phase angle between the measured current and voltage are measured (18) to enable the calculation of congestive heart failure (CHF) indicia values. The calculated CHF indicia values are then compared with baseline values established when the patient is in a known, stable condition. Intervention is initiated if the differences between the calculated CHF indicia values and the baseline values are outside of established tolerances. The CHF indicia values may include resistance, reactance, impedance, total body water and extracellular water. Moreover, the indicia values may include a figure of merit indicative of the hydration status of the patient.
Patent CA-2255069-C (CA)
Title: Shock absorbing locking disconnect latch for ball bearing slides
Inventor: HASHEMI DAVID
IPC: A47B88/49
Filed: 1997-05-15
Granted: 2002-11-12
Abstract: A shock absorbing locking disconnect latch (100) comprises a lever (122) having a generally upwardly sloping front surface, a detent (104) for positively arresting the longitudinal travel of a slide member (14) during extension, and at least one vertical slot (106, 108) to enable flexing of th e disconnect latch (100) for removal or retraction of the slide member (14) fr om a longitudinal channel. The front sliding surface leading to the detent (104 ) allows the lever (122) to flex until the detent (104) has been reached and engaged by a guide post (48) in the longitudinal channel which engages the detent (104) and locks the slide member (14) in a working position preventin g unintentional retraction of the slide member (14) or extension of the slide member (14). When the longitudinal channel is stopped by the detent (104) of  the disconnect latch (100), the shock energy is absorbed using the slot (106 , 108) by deflection of the disconnect latch (100).
Patent CA-2260109-C (CA)
Inventor: GAUMONT CLAUDE
IPC: B26D7/26
Filed: 1999-01-19
Granted: 2002-01-01
Abstract: A blade holder for a floor stripping machine and a floor stripping machine equipped with such a blade holder. The blade holder includes a first member and a second member. The first member has a blade positioning seat. The second member is movable toward the blade positioning seat to a blade clamping position and away from the blade positioning seat to a blade release position, thereby permitting insertion or removable of a scraping blade. A hydraulic actuator is provided for moving the second member into the blade clamping position.
Patent CA-2265380-C (CA)
Inventor: WANG LIEN-SHENG
IPC: H01H19/28
Filed: 1999-03-12
Granted: 2004-06-08
Abstract: An inline switch apparatus for use with a power cord having first and second conductors. The second conductor is severed and the first and second conductors have respective first and second electrical conductors therein. The inline switch apparatus includes a lower housing having first and second opposite internal sides and the first internal side has a holder for holding the first conductor of the power cord. The second internal side has first and second opposed deflectors defining a passage therebetween for receiving opposite ends of the severed second conductor therethrough. The second internal side further includes first and second receptacles adjacent the first and second deflectors respectively. The opposite ends of the severed second conductor are operable to extend around the first and second deflectors respectively for receipt in the first and second receptacles respectively. The apparatus further includes an upper housing operable to mate with the lower housing to cover the opposite ends of the severed second conductor and further includes a switch actuator operable to be supported for rotation between the upper and lower housings and includes a switching conductor operable to cooperate with the switch actuator such that the switch actuator is operable to move the switching conductor. First and second switch contacts are provided on the upper housing and are operable to make electrical contact with the electrical conductors in the opposite ends of the severed second conductor of the power cord and are operable to make and break electrical contact with the switching conductor when the switch actuator is rotated, to selectively electrically connect and disconnect the electrical conductors in the opposite ends of the severed second conductor.
Patent CA-2267218-C (CA)
Inventor: PRAMONO WASI TRI
IPC: E02B3/12
Filed: 1997-09-23
Granted: 2002-03-19
Abstract: An erosion control system is useful for coastlines, riverbeds, and the like from soil erosion caused by a wavefront. The system typically includes an integrated armored layer mounted upon and covering an embankment adjacent to the shoreline. The armored layer comprises a plurality of blocks (30) affixed together in a chainlike configuration (24). The blocks (30) are secured together by adjoining members (40) disposed between neighboring blocks (30). Each chain (24) is linearly aligned in a direction abutting the wavefront, and each chain (24) abuts neighboring chains, but not affixed in any manner thereto.< /SDOAB>
Patent CA-2268922-C (CA)
Title: Methods of treating or preventing cardiac arrhythmia
Inventor: LYNCH JOSEPH J JR
IPC: A61K31/664
Filed: 1997-10-29
Granted: 2004-12-28
Abstract: A method of treating or preventing supraventricular tachyarrhythmias is disclosed which comprises the use of a compound which selectively blocks the ultra-rapidly-activating delayed rectifier K+ current (I Kur) of the human atrium.
Patent CA-2272539-C (CA)
Title: Process for the stereoselective production of nitro-enamine compounds
Inventor: OLIVER-SHAFFER PATRICIA A
IPC: C07D317/60
Filed: 1997-12-12
Granted: 2006-06-13
Abstract: The present invention relates to an asymmetric Michael Addition reaction to produce nitro ketone diasteroisomers with enhanced stereoselectivity.
Patent CA-2280186-C (CA)
Title: Method for identifying a plurality of transponders, analysing device and transponders for implementing said method
Inventor: PAGNOL FREDERIC
IPC: G07C9/00
Filed: 1998-12-10
Granted: 2004-06-22
Abstract: The invention concerns a method for identifying a set of transponders located in an analysing device field, each transponder having in memory a different identification code. The analysing device (3) transmits data. Each transponder (1) still unidentified compares said data with a part of its identification code selected by the analysing device, then transmits in a time window selected on the basis of the result of the comparison and the part of the identification code concerned by the comparison. The analysing device (3) receives the data transmitted by the transponders (1) and when these do not enable to determine at least partially their identification code, transmits modified data so as to obtain, after a finite number of iterations, the transmission by the transponders of data enabling to determine their identification code.
Patent CA-2283007-C (CA)
Inventor: CRAN JAMES A
IPC: F17C5/06
Filed: 1999-09-22
Granted: 2008-08-12
Abstract: A marine gas storage and transport system formed of small diameter steel pipe, which is coiled and stacked in a specific manner. The system is suitable for use on top of a barge or inside the holds of a ship, when contained within a secondary containment system. The specific manner in which the pipe is coiled is such that about 97%  of the total length of pipe coiled may be described by constant curvature or pure circles.  Additionally these circles lie directly on top of one another about 94% of the time and vertical stacking stresses are minimized. Only about 6% of the pipe is involved in crossover geometry. This method, of about 97% circular coiling, combined with about 3% transitional coiling results in a continuous length of pipe that nests easily, provides greatly reduced contact stresses and is very economic to construct due to its ease of nesting and it's long lengths of constant curvature. Descriptions of the marine transport system or the coil containment system are not included since they are described in related patents.