baber/WOPTO huggingface dataset:
Patent CA-2211347-A1 (CA)
Title: An encoding method and apparatus using a control circuit switching between two backward adaptive encoders for transmission
Inventor: HOFMANN RUDI
IPC: G10L19/18
Filed: 1996-02-02
Abstract: A speech encoder (100) receives speech signals (S) which are encoded and transmitted on a communication channel (120). Silence in the speech is utilized by a data encoder (101) to transmit data on the speech frequency band via the channel (120). A signal classifier (103) switches between the encoders (100, 101). The speech encoder has synthesis filter (115) with state variables in a delay line, predictor adaptor (116), gain predictor (113, 114) and excitation codebook (112). The data encoder (101) has delay line with state variables stored and updated in a buffer (192). On switching (103, 102, 193) from data to speech, the buffer state variables are fed into the synthesis filter delay line via an input (144) for smooth transition in the speech encoding.  Coefficient values in the synthesis filter (115) and an excitation signal (ET(1...5)) are generated. Thereby a buffer in the gain predictor (113, 114) is preset and its predictor coefficients and gain are generated. The incoming speech signal (S) newly detected is encoded (CW) by the values generated in the speech encoder (100), which is successively adapted. The receiver side has corresponding speech and data decoders.
Patent CA-2211456-A1 (CA)
Inventor: HOGAN HOWARD D
IPC: A61L9/12
Filed: 1997-07-25
Abstract: An air freshener device in which an insert provides shape to article of clothing so that the air freshener device assumes the shape of the article of clothing.   The insert preferably formed so that assembly of the air freshener device inherently shapes the article of clothing.  The air freshener device also includes a pouch formed in the article of clothing to receive scented beads or other aromatic material.  The pouch and the air freshener device provides air flow over the scented material so that the scented material properly disseminates the scent in order to freshen the environment.
Patent CA-2211483-A1 (CA)
Title: Anti-theft lamp adapter
Inventor: NEWMAN WALTER
IPC: H01R33/08
Filed: 1997-07-25
Abstract: An adapter for lamps and other electrical devices to be installed in standard lampsockets which prevents unauthorized removal of such lamps or other electrical devices. A screwshell means is placed upon a body member such that relative rotation between them is possible. A tool or key placed in aligned slots or keyways prevents relative rotation so that the adapter can be installed or removed from a lampsocket. The tool or key is then removed permitting relative rotation again, whereby the lamp or other electrical device cannot be removed from the lampsocket. Use of the tool or key fixes the two components with respect to one another and the adapter can be removed.
Patent CA-2211800-A1 (CA)
Title: Method and catalyst for catalytically oxidising a low concentration of h2s in a gas to give sulphur
Inventor: PHILIPPE ANDRE
IPC: B01J37/20
Filed: 1995-11-20
Abstract: PCT No. PCT/FR95/01524 Sec. 371 Date Nov. 19, 1997 Sec. 102(e) Date Nov. 19, 1997 PCT Filed Nov. 20, 1995 PCT Pub. No. WO97/19019 PCT Pub. Date May 29, 1997A process for catalytically oxidizing the H2S present at low concentration in a gas to sulphur wherein the gas together with a gas containing free oxygen in a quantity to provide and O2 to H2S mole ratio ranging from 0.05 to 10 are contacted with a catalyst for selectively oxidizing H2S to sulphur, the catalyst comprising a support based on silicon carbide associated with a catalytic active phase containing at least one transition metal such as Fe, Ni, Cr, Co, Cu, Ag, Mn, Mo, Ti, W or V, in a form of a metal compound and/or in the elemental state. Prior to treating the gas, the oxidation catalyst is subjected to an activation treatment which loads the active phase of the catalyst to provide maximum sulphurization of the metal of the catalyst. In an alternate embodiment, the oxidation of the H2S is performed below the dew point of the sulphur. In another embodiment, the oxidation is performed at a temperature above the dew point of sulphur and in particular between 200 DEG  C. and 500 DEG  C. Also disclosed is a catalyst for selectively oxidizing H2S to sulphur which comprises a catalytically active phase based on at least one transition metal such as indicated above in combination with a silicon carbide support.
Patent CA-2213803-A1 (CA)
Title: Face shield for helmet
Inventor: PARK SOO AN
IPC: A42B3/24
Filed: 1997-08-25
Abstract: A face shield for a helmet. The face shield having a weather lens and a face lens spaced from the weather lens so as to form an air gap, is characterized in that an electroconductive film is attached to the air gap of the weather lens, in that upper and lower electrodes are printed on upper and lower sides of the electroconductive film, receptively, and in that the weather lens is made from a material such as a polycarbonate, butyrate, or an acrylic, and the face lens from an anti-fog sheet.
Patent CA-2214069-A1 (CA)
Title: Shaving system
Inventor: CARSON WILLIAM C III
IPC: B26B21/06
Filed: 1993-09-27
Abstract: A shaving system includes  a platform member with a support surface that has a plurality of apertures therein and guard structure integral therewith and disposed forwardly of the support surface,  a cap member with a plurality of post elements for disposition in the apertures in the support structure, a primary blade member having a planar body and a cutting edge, a secondary blade member having a planar body and a cutting edge, each blade member having a plurality of apertures and at least two of the apertures  having  spaced  locating  surfaces  for  positioning engagement with the post elements, and a plurality of discrete spacer members disposed on the post elements and between the primary and secondary blade members.   The post elements extend through the apertures in the blade members, the spacers and the platform member and preferably are mechanically deformed to secure the primary and secondary blade members with their cutting edges in spaced parallel relation in a fixed shaving geometry.   The spacer members maintain predetermined vertical spacing between the cutting edges of the primary and secondary blade members and the post elements maintain predetermined lateral spacing of the blade edges of the primary and secondary blade members relative to the guard structure.
Patent CA-2214891-A1 (CA)
Title: Apparatus for exciting an electrodeless lamp with microwave radiation
Inventor: KAMAREHI MOHAMMAD
IPC: H05B41/24
Filed: 1996-03-11
Abstract: Apparatus for exciting an electrodeless lamp to produce visible light. A  source of microwave energy (22) is coupled to a cylindrical cavity (10) which encloses an electrodeless lamp (11). The cylindrical cavity (10) includes a sidewall and end wall (10a) which is made from a metallic mesh which passes light produced from the electrodeless lamp (11). The electric field intensity within the cylindrical cavity (10) is increased in the region (11a) above the lamp center (11b). The increased electric field intensity produces more uniform temperature across the bulb surface, thereby increasing the rate of plasma heating of gas molecules within the lamp (11).
Patent CA-2215337-A1 (CA)
Inventor: TONCELLI MARCELLO
IPC: C04B28/02
Filed: 1997-01-27
Abstract: Cementitious products in form of either single-layer tiles or slabs or of blocks to be subsequently sawed in form of said slabs are prepared from a mixture of a granulated stone material having a selected particle size, and from a binding mix formed by cement, a quantity of between 0.25 and 0.36 parts by weight of water relative to the weight of cement, and a plasticizer for cementitious slurries, in which the quantity of binding mix added is slightly in excess of the quantity corresponding to the void fraction of the granulated material, by a method and apparatus which provide for the forming mould, containing a layer of predetermined thickness of the mixture, to be subjected to a first very short deaeration step under the effect of a very high vacuum and to a subsequent vibration step under a lower vacuum, after which the mould goes on to setting and hardening steps.
Patent CA-2217597-A1 (CA)
Inventor: KUSLEIKA RICHARD S
IPC: A61F2/958
Filed: 1997-10-08
Abstract: An improved catheter (10) having at least one lumen (16) with a nonlinear inflation lumen flow portion that may be used with a balloon (18) or in a guide catheter (24). Additionally disclosed is a catheter assembly (20) having a nonlinear flow portion for contrast media delivery. The nonlinear flow portions facilitate hydraulic and mechanical characteristics relating to deflation of a balloon (18), the flow rate of fluid, contrast media or the like, and relative performance.
Patent CA-2219320-A1 (CA)
Inventor: BYON SUNG KWANG
IPC: B60R21/26
Filed: 1995-12-22
Abstract: A pyrotechnic inflator (52) using a thermoelectric device (100) decreases the temperature and pressure of a gas generated when the explosive (55) of the inflator (52) is detonated to simplify the structure thereof. The inflator includes the thermoelectric device (100) for receiving a power from an electronic control unit (53) to cool an inflator housing (56) in a predetermined temperature, and a linear flow passage (150) therein. A metal filter (66) is installed to one side of the flow passage (150) for eliminating minute particles included in the gas generated during the detonation of the explosive (55) and lowering the temperature of the gas. Upon the power supply to the inflator, the inflator housing (56) is cooled to reduce the temperature of the gas generated when the explosive (55) of the inflator is detonated and to decrease the peak explosion pressure, thereby simplifying the structure and facilitating the manufacturing of the inflator.
Patent CA-2225798-A1 (CA)
Title: Liquid medium extraction purification method
Inventor: TAKHIM MOHAMED
IPC: C01B17/90
Filed: 1996-06-21
Abstract: PCT No. PCT/BE96/00066 Sec. 371 Date Feb. 5, 1998 Sec. 102(e) Date Feb. 5, 1998 PCT Filed Jun. 21, 1996 PCT Pub. No. WO97/00714 PCT Pub. Date Jan. 9, 1997Method of purification by extraction of at least one substance to be isolated from a liquid medium, comprising an addition to the latter of an organic compound, entrainable by a vapor, which has a molecule with an acidic-basic character in the Lewis sense due to at least one atom of N, O and/or S forming one or more active sites provided with a free electron pair, this pair or these pairs being in resonance with at least one other pair carried by the molecule, this addition being carried out in a quantity sufficient to give rise to a product of an equilibrium reaction between the organic compound and the said at least one substance to be isolated, and sufficient to cause a precipitation of this equilibrium reaction product, a filtration of the precipitate and an entrainment by vapor of the organic compound from the precipitate, with a yield of the substance to be isolated in purified form.
Patent CA-2226871-A1 (CA)
Inventor: BERGE ROLF
IPC: A61K31/22
Filed: 1995-10-25
Abstract: La présente invention se rapporte à des composés de formule générale (I) alkyle-X-CH¿2? COOR, dans laquelle alkyle représente un hydrocarbure saturé ou insaturé de 8-26 atomes de carbone, X représente un atome de soufre ou un atome de sélénium et R représente hydrogène ou alkyle C¿1?-C¿4?. Lesdits composés sont utilisés pour la fabrication de médicaments destinés au traitement des pathologies hyperlipidiques, (maladie artérioscléreuse), la maladie des artères coronaires et pour diminuer la concentration de lipides dans le sang des mammifères, pour inhiber la modification oxydative de LDL, et pour diminuer la prolifération des cellules cancéreuses. L'invention concerne également des procédés de préparation des composés.
Patent CA-2227199-A1 (CA)
Title: Air-liquid system for cleaning vehicle headlight lens and similar surfaces
Inventor: PARTLOW DENNIS R
IPC: B60S1/46
Filed: 1996-07-29
Abstract: Liquid and air outlet nozzle assemblies are capable of mounting on a vehicle adjacent the headlights (28) and are positioned such that liquid and air jets (106a, 110a) from the nozzles intersect prior to engaging the headlight (28) to form a spray mixture (112) that cleans the headlight (28). The nozzle assemblies are associated with a control valve (34) capable of connection in a pressurized air system (24) on the vehicle and in the pressurized washer system (16) for the windshield wipers (14) and also capable of automatically directing liquid from the vehicle washer system (16) and pressurized air on the vehicle to the liquid and air nozzles (106, 110) to form a headlight cleaning function upon manual activation of the pressurized windshield washer system of the vehicle. An embodiment of the nozzle assembly has an extension and retraction piston (122) for extending nozzle openings (168, 172) toward the headlight (28) in operation condition of the assembly.
Patent CA-2229902-A1 (CA)
IPC: C11D17/04
Filed: 1997-06-19
Abstract: A no scrub/no wipe method for cleaning exterior windows without filming or spotting includes spraying a cleaning composition onto the window surface, preparing purified rinse water by passing rinse water through an ion exchange resin and rinsing the window surface with the purified rinse water. A spray gun (12) comprising separate chambers for the cleaning composition (14) and the ion exchange resin (16) is disclosed.
Patent CA-2230433-A1 (CA)
Inventor: ANDERSON RALPH L
IPC: B31F1/12
Filed: 1998-04-01
Abstract: The present invention is generally directed to facial tissues having great softness and strength. The facial tissues are made from a multi-layered paper web containing a middle layer of eucalyptus fibers either alone or in combination with polyester fibers.  The paper web is made with a debonding agent for producing a web having reduced levels of fiber bonding.  Once formed, the paper web is treated on each side with a bonding agent in a preselected pattern.  Both sides of the paper web are also creped. In order to create a smooth low friction surface, the paper web is fed through a calendering machine and treated with a friction reducing composition and subsequently dried.
Patent CA-2233733-A1 (CA)
Title: Compressed representation of a data base that permits ad hoc querying
Inventor: KORN PHILIP RUSSELL
IPC: G06F17/30
Filed: 1998-03-31
Abstract: A method and system for compressing a data base that permits queries on the compressed representation of the data base. Another feature is that an approximation of the values of the data base are derivable directly from the compressed representation of the data base. Yet another feature is correction of poor approximations of the reconstructed data. Still another feature is the capability of performing aggregate queries of the compressed representation of the data base.
Patent CA-2234132-A1 (CA)
Title: Process to chloroketoamines using carbamates
Inventor: ABDESAKEN FEREYDON
IPC: C07B61/00
Filed: 1998-04-01
Abstract: The present invention relates to a process for preparing 5-methylene cyclic carbamates either by cyclization of an alkynyl amine with carbon dioxide in the presence of a copper catalyst or by forming an isocyanate from a substituted acetoacetamide followed by hydrolysis. The 5-methylene cyclic carbamates by either method are converted to 5-(chloromethylene) cyclic carbamates, using trichloroisocyanuric acid, followed by hydrolysis to a chloroketoamine. The chloroketoamine from the process of this invention additionally can be reacted with an organic acid chloride to form an amide compound which is useful as a fungicide.
Patent CA-2234178-A1 (CA)
Title: Infrared motion detection signal sampler
Inventor: SHPATER PINHAS
IPC: G08B13/19
Filed: 1998-04-07
Abstract: The digital sampler circuit processes an output signal from a high gain analog amplifier having as input an infrared motion detector output signal and a negative low pass filtered feedback signal. The amplifier output signal is a substantially square pulse signal having an irregular frequency and duty cycle and has an average duty cycle indicative of a DC level and a slow change in the DC level of the detector output signal. The sampler circuit includes a detector circuit for detecting the amplifier output signal and discriminating at regular intervals a high/low state of the output signal, and generates a high/low feedback signal corresponding to the high/low state of the output signal detected. The high/low state of the output signal is analyzed over a predetermined number of the intervals to obtain a ratio value for producing an output digital signal sample value. The digital sample value is a measure of the DC level and the change in the DC level of the detector output signal. The digital sample is accurate and requires a single comparator and relatively simple circuitry.
Patent CA-2235208-A1 (CA)
Title: Method for treating contaminated water
Inventor: O'HANNESIN STEPHANIE FRANCES
IPC: B09C1/00
Filed: 1996-10-18
Abstract: Groundwater, or other water contaminated with chlorinated organic contaminants, is passed through a permeable body of iron particles. The particles are coated with nickel, but the coating is incomplete, in that, in patches, the iron is directly exposed. The contaminants break down under prolonged proximity to the iron, the nickel enhancing the catalytic effect. The rate of breakdown is much faster than when bare iron particles were used. When the nickel is alloyed with phosphorus, or boron, even more rapid breakdown rates are achieved.
Patent CA-2236556-A1 (CA)
Inventor: LIANG SHIH-HUEI
IPC: B29C48/21
Filed: 1998-05-04
Abstract: A process for the manufacture of an environmental friendly paper from about 56% to about 80% by weight of inorganic mineral powders, about 43% to 18% by weight of polyethylene, and about 1% to 2% by weight of additives is disclosed. A composition for the manufacture of an environmental friendly paper, comprising about 56% to 80% by weight of inorganic mineral powders, about 43% to 18% by weight of polyethylene, and about 1 % to 2% weight by additives is also disclosed.
Patent CA-2236814-A1 (CA)
Inventor: COLLIS ALAN JOHN
IPC: C07D491/052
Filed: 1996-12-05
Abstract: The invention provides compounds of formula (I), wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 represents H  or C1-6 alkoxy optionally substituted by one or more fluorine atoms; R3 represents one or more groups independently selected from H, halogen, C1-4 alkoxy and CF3; in addition, R2 and one R3 group may together represent -OCH2-, the methylene group being attached to the ortho-position of the pendant phenyl ring; R4 represents a 4-, 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent or represents a cyclic group or an open chain group; and pharmaceutically acceptable salts thereof. The compounds of formula (I) are useful in the treatment of inter alia benign prostatic hyperplasia.
Patent CA-2239252-A1 (CA)
Inventor: ESTOP PASCAL
IPC: H05K7/20
Filed: 1997-10-16
Abstract: The invention concerns an electronic power module comprising electronic power components (1) with at least one contact surface (2), control connections (4) for connecting the components to a control module, power connections (5) for transmitting power between components and/or to other modules, and at least one metal heat exchanger (6) for evacuating power dissipation by Joule effect from said power electronic components (1). The invention is characterised in that the contact surfaces (2) of said electronic power components (1) are directly mounted on the metal heat exchanger (6), the metal heat exchanger (6) being at the same tension as the contact surfaces (2) of the electronic power components (1).
Patent CA-2245785-A1 (CA)
Title: Dry food product of fermented soybeans
Inventor: KUROSAKI SHINYA
IPC: A23L11/00
Filed: 1998-08-27
Abstract: A dry food product of fermented soybeans, which is prepared by frying fermented soybeans in an oil and removing skins, and which has an average Bacillus natto survival ratio of 1.0 × 10 8 to 7.0 × 10 8 microorganisms/g when 10 g thereof is milled and measured by an agar plate culture method, the dry food product being almost free of an odor characteristic of fermented soybeans, being storable for a long period of time with maintaining a commercial value and being suitable for being had like cookies.
Patent CA-2245895-A1 (CA)
Inventor: DREVET JEAN-BAPTISTE
IPC: F04B43/00
Filed: 1997-02-11
Abstract: A vibrating membrane fluid circulator comprising an internal hydraulic circuit made up in succession of an admission orifice (1), a pump body (2), and a delivery orifice (3), the pump body (2) defining, in operation, a space (4, 18, 30) having rigid walls (5, 6) between which a deformable membrane (9) is placed having means for coupling its end (11) adjacent to the admission orifice to a motor member (39) generating a periodic excitation force substantially normally to the surface thereof, said membrane (9) being associated with means for creating tension parallel to the fluid circulation direction, said membrane constituting the medium for waves travelling from the end subjected to the excitation force towards its opposite end situated adjacent to the delivery orifice, said displacement being accompanied by forced damping due to the shape of the rigid walls so as to transfer energy from the membrane to the fluid giving rise to a pressure gradient and to fluid flow related to the dimensions of the pump body and of the membrane, the shape and the spacing of the rigid walls, the mechanical characteristics of the membrane, and the characteristics of its excitation and its tension state.
Patent CA-2246053-A1 (CA)
Inventor: NEWTON STEVEN R
IPC: B60T13/66
Filed: 1998-09-28
Abstract: An electropneumatic brake controller of the present invention including a main reservoir, pneumatic brake pipe relay and first and second restrictions connected in series with the main reservoir, the brake pipe relay and brake pipe and first electropneumatic valve connected in parallel to the second restriction.  The second restriction is smaller than the first restriction.  The first electropneumatic valve is responsive to an electric release signal to cut out the second restriction. When the two restrictions are in series, this is the running mode whereas when the second restriction is cut out, this is the release mode.  A control unit controls the electropneumatic valves to produce an overcharge cycle in response to a release brake signal.   This cycle includes overcharging the brake pipe, holding the overcharged condition for a fixed period of time and bleeding to a normal release brake pipe pressure.
Patent CA-2246089-A1 (CA)
Title: Method for producing copper in hydrometallurgical process
Inventor: H M L INEN MATTI
IPC: C22B15/00
Filed: 1998-08-28
Abstract: The invention relates to a method for producing copper in a hydrometallurgical process from copper-bearing raw materials, such as sulfidic concentrates. The concentrate is leached in a leaching stage of several steps into a chloride-based solution. The copper-bearing solution obtained from this leaching is subjected to reduction and solution purification, whereafter the copper contained in the solution is precipitated as copper oxidule by means of alkali hydroxide. The alkali chloride solution formed in the production of copper oxidule is fed into chloride alkali electrolysis, where it is regenerated back into alkali hydroxide. The hydrogen generated in the electrolysis is used in the reduction of copper oxidule and in other reduction stages of the process. The formed chlorine is used in the leaching of the raw material. When necessary, the reduced copper that is in a granular or pulverous form is further subjected to melting and casting in order to produce commercial-grade copper.