baber/WOPTO huggingface dataset:
Patent CA-2018880-C (CA)
Title: Scanning line number converting device for video signal, and down-converter and picture-in-picture tv receiver using the same
Inventor: YOSHIDA YASUHIRO
IPC: H04N5/44
Filed: 1990-06-13
Granted: 1995-05-30
Abstract: In a scanning line number converting device, a video signal is converted into a digital signal, its scanning lines being thinned out by a thinning-out circuit (5) in the vertical direction to reduce the vertical direction sampling frequency and interpolated so as to form a non-interlace signal.  The non-interlace signal is written in a frame memory (7), under control of a writing control circuit (8).  A field determination circuit (15) determines a field of a video signal used as reference.          According to this determination output, the non-interlace signal is read out of the frame memory while undergoing a conversion into an interlace signal such that its interlace sequence corresponds to that of the reference video signal, resulting in a conversion of the scanning line number.  A down-converter for converting a high-resolution TV signal into an NTS signal is configured using this scanning line number converting device.  Also, a picture-in-picture television is configures using the scanning line number converting device so as to thin out the scanning lines of a video signal of a sub-picture inserted into a main picture.
Patent CA-2026596-C (CA)
Title: Method for transferring, between two switching exchanges for mobile services, the handling of an active connection with a mobile terminal
Inventor: HECKER HUBERTUS P J
IPC: H04W36/12
Filed: 1990-10-01
Granted: 1994-08-30
Abstract: Method for transferring the handling of an active connection made to a mobile terminal, the so-called handover, in a very efficient manner between two switching exchanges equipped for mobile services in a telecommunication system equipped for mobile communication, comprising at least one mobile terminal (MS), a plurality of base stations (BS) equipped for communication via a radio path with the mobile terminal and each having a working area with a limited range, at least two switching exchanges (MSC) equipped for mobile services and each able to interact with a specific group of the plurality of base stations, and a exchange (TX) equipped for fixed telecommunication which is able to interact with the switching exchanges, in which method, to transfer the handling of an active connection made to the mobile terminal which is being handled by a first switching exchange which is connected to the exchange equipped for fixed telecommunication to a base station associated with the other switching exchange, a connection is made between the first switching exchange and the other switching exchange and a connection is made between said other switching exchange and the base station associated therewith, which base station reserves a radio channel for the mobile terminal, after which the communication with the mobile terminal is taken over by said base station, and in which method a connection is also made between the exchange equipped for fixed telecommunication and the other switching exchange and, after the connection to the mobile terminal has been taken over by the base station as-sociated with the other switching exchange, the entire handling of the connection is taken over by the other switching exchange and the connection between the two switching exchanges, and between the first switching exchange, and the exchange equipped for fixed telecommunication, is disconnected.
Patent CA-2028593-C (CA)
Title: Stabilized enzyme compositions
Inventor: BRANDT DOUGLAS R
IPC: C12Q1/26
Filed: 1990-10-25
Granted: 2007-08-21
Abstract: The present invention provides stable, non-lyophilized, enzyme reagent compositions for use in diagnostic assays. A reagent matrix for stabilizing creatine kinase includes at least one enzyme substrate and/or at least one enzyme product combined with the enzyme in a liquid medium. The reagent matrix can also include an enzyme activator chosen from a sulfhydryl compound or a divalent metal ion. The stabilized enzyme reagents of the present invention have an increased applicability to automated instrumentation, as well as, an increased convenience of use in manual assays, without reagent waste due to limited shelf-life.
Patent CA-2034157-C (CA)
Title: Frequency linearization circuit for a microwave vco in ridged waveguide
Inventor: POELKER JOHN N
IPC: H03B1/00
Filed: 1991-01-15
Granted: 1996-02-06
Abstract: A voltage controlled oscillator  having improved frequency linearization charac-teristics. A radial line, (top-hat) disc geometry  in conjunction with a varactor diode are disposed in a broadband, ridged waveguide oscillator circuit to produce a frequency linearized voltage controlled oscillator. A negative resistance device is recessed into the ridged waveguide and coaxially coupled via an impedance transformer to the ridged waveguide cavity. The present invention uses a disc resonator in a ridged waveguide to transform the microwave impedance of a non-RF generating element, a varactor diode, to values which provide improved voltage controlled oscillator tuning linearity. The disc resonator or radial line is located above the varactor diode. The radial line transforms the microwave impedance of the varactor diode to a new value which is then coupled into the ridged waveguide circuit and subsequently to the RF generating diode. The circuit impedance, which is a function of the varactor voltage, acts to linearize the frequency versus voltage characteristic of the diode. A comparison of the operation of the circuit with and without the radial line/tuning disc shows a 13:1 improvement in the frequency linearity. Experimental results show that the circuit configuration of the pre-sent invention is ideal for use in microwave and millimeter-wave voltage controlled oscillators which require inherent frequency versus voltage linearity. Since the voltage cpmtrolled oscillator frequency linearity is a critical factor in phase locked loop perfor-mance, it is especially suited for use in microwave and millimeter-wave radar or com-munication systems which are frequency agile.
Patent CA-2041805-C (CA)
Inventor: CAHLANDER ROBERT L
IPC: A47J37/12
Filed: 1991-05-03
Granted: 2001-10-16
Abstract: A fully automated robotized system and method is provided for cooking food products. The system and method is especially useful for use in a quick service or fast food restaurant and, in one embodiment, is capable of cooking, on a fully automated basis, french fries, chicken nuggets, fish filets and chicken patties. In one embodiment, the system includes a robot, a bulk uncooked food dispensing station, a cooking station and a cooked food storage station. The system can be controlled by a computer operating and control station that controls and directs the robot to obtain bulk food from the dispensing station, place it in cooking position at the cooking station and when cooked, remove the food and deliver it to the storage station, at a rate required to fill anticipated customer orders. In one embodiment, the cooking station is a clamshell grill and the robot deposits on and retrieves from the grill hamburger patties in a predetermined horizontal array with a novel end of arm tool.
Patent CA-2042546-C (CA)
Title: Thyristor converter protection method and apparatus
Inventor: TAKAHASHI TADASHI
IPC: H02H7/12
Filed: 1991-05-14
Granted: 1996-09-03
Abstract: A method and apparatus for protecting thyristors in a power converter from overvoltages.  Voltage detectors determine if the forward voltage of each thyristor has increased in the converter.  If such an overvoltage occurs during a predetermined period after the conduction of the thyristor, forced triggering of all the thyristors prevent damage to the thyristors.
Patent CA-2043596-C (CA)
Title: Optical transceiver
Inventor: KAHARU TAKEO
IPC: H04L12/40
Filed: 1991-05-30
Granted: 1995-10-03
Abstract: First and second optical couplers are inserted in linear bus type first and second data buses for transmission to right and left, respectively, by which each terminal equipment is connected to the first and second data buses.  In the terminal equipment first and second monitor pulses are generated by a monitor pulse generator at different points of time in a low-level period of a frame synchronizing signal of each frame forming data to be transmitted, by which first data to be transmitted, appended with the first monitor pulse, and second data to be transmitted, appended with the second monitor pulse, are formed and are provided to the first and second optical couplers, respectively.  The optical data signals branched from the first and second optical couplers are received by a common photodetector. A monitor pulse detector outputs an error flag when it detects either one of the first and second monitor pulses in the received signal.
Patent CA-2043776-C (CA)
Title: Tyre tread compound
Inventor: STEPHENS PAUL
IPC: B29K105/06
Filed: 1991-06-11
Granted: 2002-12-24
Abstract: A tire tread compound, particularly useful for truck tires, comprises a base polymer of natural or synthetic rubber, a filler at least 50% of which is carbon black and between 2 and 10 parts of epoxy resin per hundred parts of polymer.
Patent CA-2047441-C (CA)
Title: Installation for removing the zinc deposited by electrolysis on aluminium plates
Inventor: MENENDEZ FRANCISCO JAVIER SITG
IPC: C25C7/02
Filed: 1991-07-19
Granted: 1998-02-03
Abstract: Installation  for  removing  zinc  deposited  by electrolysis aluminium plates. The installation includes a storage zone for zinc cathode (1), a zinc scraping zone (2) and a storage zone (3) for zinc free cathodes, the cathodes being displaced consecutively from one zone to another. The scraping zone (2) has a horizontally acting lateral piercer (22) that separates the upper edge of the sheets of deposited zinc from the cathodes,  and a vertically acting scraping device (23) for removing all the zinc sheets.        On one of their vertical sides, the cathodes have an upper zone of lesser thickness to which is fixed coatings (76) of dielectric material, whose surface is coplanar with that of the cathode plate (70).
Patent CA-2050460-C (CA)
Inventor: OTTO WILLIAM F
IPC: H04B10/12
Filed: 1991-08-30
Granted: 1998-05-05
Abstract: A transmitting device for transmitting a plurality of spatial laser beams over a single fiberoptic glass monofilament. for conveying a plurality of signals without multiplexing.  Means are provided for generating a plurality of laser beams, each of which are directed into the core of the fiberoptic monofilament of glass at a different angle to the longitudinal axis of the monofilament.  Each of the beams also exit from the exiting end of the monofilament at different angles.  Those inserted at an angle of the longitudinal axis exit in a conical annulus having the same angle as the angle in which the beam was originally inserted into the monofilament.  Means are provided for intercepting each of said signals as they exit from the exiting end of the monofilament and converting them into electrical energy or extracting data therefrom.
Patent CA-2050799-C (CA)
Title: Shift amount floating-point calculating circuit with a small amount of hardware and rapidly operable
Inventor: ISHIHARA SHINGO
IPC: G06F7/485
Filed: 1991-09-06
Granted: 1994-03-22
Abstract: Abstract of the Disclosure:     In a floating-point arithmetic unit for performing floating-point arithmetic of first and second input data which are represented by a floating-point representation and composed of first and second exponent parts and first and second mantissa parts, a shift amount calculating circuit comprises first and second subtracters (26, 27) supplied with lower (n + 1) bits of the first and the second exponent parts.  The first subtracter subtracts a first lower number (#EA1) from a second lower number (#EB1) to produce a first difference signal (RS1).  The second subtracter subtracts the second lower number (#EB1) from the first lower number (#EA1) to produce a second difference signal (RS1).  Supplied with the first and the second exponent parts, an exponent comparing unit (28) compares the first exponent part with the second exponent part to produce a comparison result signal (CP1, CP2, CP3, CP4).  Responsive to the comparison result signal, a first selector (31) selects one of the first difference signal and first and second value signals ("0", "64") as a first right-shift amount signal (SD1).  Responsive to the comparison result signal, a second selector (32) selects one of the second difference signal and the first and the second value signals as a second right-shift amount signal (SD2).
Patent CA-2052955-C (CA)
Title: Machine for detaching tie anchors
Inventor: THEURER JOSEF
IPC: E01B29/32
Filed: 1991-10-08
Granted: 2002-11-05
Abstract: A machine for detaching tie anchors from the rails of a railroad track comprises a self-propelled machine frame mounted on undercarriages for movement along the track in an operating direction, and two workheads mounted on the machine frame and positioned opposite each other in a direction extending transversely to the machine frame. Each workhead is associated with a respective rail for detaching the tie anchors therefrom and comprises a hammer arranged to press against a field-side tie anchor end, and drives for adjusting the hammer vertically and in a direction extending longitudinally with respect to the machine frame for pressing the hammer against the field-side tie end.
Patent CA-2053053-C (CA)
Inventor: TAYLOR JAMES
IPC: G09F13/04
Filed: 1991-10-09
Granted: 1997-06-03
Abstract: A signalling device is provided having a plurality of differently colored light modules stacked one above the other that function properly regardless of arrangement order of the light modules within the signalling device.    The signalling device includes a signal bus having a plurality of channels that extends through each light module.  Each channel carries a unique status signal to one light module.  Each light module is connected to and identified by a different channel, thus enabling the light modules to be arranged in any order and still function properly.  One or all cover plates on each light module may be removed without requiring any light module to be removed from the signalling device.  This feature enables both the light modules to be serviced while retaining their color identity and the color of the cover plates to be changed without requiring any light modules to be removed from the signalling device in either situation.          The signalling device is quickly assembled with dilating rivets.  A data logger connected to each signalling device records the changing status as indicated by each light module.  All these features enable the signalling device to be quickly and efficiently assembled and maintained.
Patent CA-2054365-C (CA)
Title: Tunable microstrip bandpass filter
Inventor: BABBITT RICHARD W
IPC: H01P1/218
Filed: 1991-10-28
Granted: 1998-09-29
Abstract: A tunable bandpass filter comprises a flat ferrite body having first and second spaced, coextensive microstrip conductive lines on its upper surface.  A winding encircles the ferrite and conductive lines so that a variable d-c current in the winding varies the magnetic permeability of the ferrite and thus the center frequency of the filter.
Patent CA-2055605-C (CA)
Title: Absorbent article comprising at least two superabsorbents
Inventor: ROOS ANDERS
IPC: A61F13/53
Filed: 1990-05-29
Granted: 2000-01-25
Abstract: The present invention relates to a disposable absorbent article, such as a disposable diaper, incontinence guard or sanitary towel. The invention is characterized in that the absorbent pad includes at least two mutually different superabsorbents, the absorption properties of which with respect to their absorption rate and liquid-retention ability respectively differ essentially from one another.
Patent CA-2056271-C (CA)
Inventor: OHGA YUICHI
IPC: C03C3/06
Filed: 1991-11-27
Granted: 1996-07-09
Abstract: The present invention is directed to an ultraviolet (UV) light-permeable optical glass consisting of a fluorine-doped synthetic quartz glass. Glass of this type has long term reliability and is suitable for use as a photomask substrate, as a lens for far UV or UV lasers, as a prism, as a spectroscopy cell, as a window material, as a mirror and the like.
Patent CA-2061506-C (CA)
Title: Hose reel
Inventor: ELEY JOHN H
IPC: B65H75/40
Filed: 1992-02-19
Granted: 2003-12-16
Abstract: A hose reel includes a reel member rotatably mounted on a horizontal portion of an upstanding tube. The upstanding tube extends vertically from the horizontal portion and thence diagonally, to a lower vertical portion aligned generally under the center of the reel member. The lower end of the upstanding tube is rotatably mounted to one end of a support arm so that the reel and upstanding tube member combination will rotate around a vertical axis. The support arm extends a distance permitting complete rotation of the reel and upstanding tube, and has a short depending arm which is slidably mounted within a tubular support. A flexible hose is inserted through the upstanding tube, and has a swivel valve connected to the lower end thereof and a second swivel valve connected to the upper end thereof, to supply fluid to a hose on the reel while permitting full rotation of the reel member as well as rotation of the upstanding tube on the support arm. A generally U-shaped rod member extends parallel to the reel hub and has its legs rotatably connected to the horizontal portion of the upstanding tube so as to rotate around the longitudinal axis of the hub, to act as a hose guide.
Patent CA-2062536-C (CA)
Title: Process for the preparation of halogenated carboxylic acid esters
Inventor: GALLEGRA PASQUALE
IPC: C07C67/287
Filed: 1992-03-09
Granted: 1997-12-23
Abstract: The invention relates to a novel process for the preparation of halogenated carboxylic acid esters of formula I                    (I) wherein R1 is alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or aryl, R2 is hydrogen, alkyl or cycloalkyl, and R3 is halogen having an atomic number of from 9 up to and including 53, which process comprises reacting an acylal of formula II                           (II), with a hydrogen halide of the formula H - R3 (III).
Patent CA-2067760-C (CA)
Title: Automatic closing distributor device for liquid or pasty product container
Inventor: DE LAFORCADE VINCENT
IPC: B65D47/20
Filed: 1991-08-27
Granted: 2001-07-17
Abstract: The dispensing device is comprised of a membrane (M) configured like an outwardly convex dome (5), covering an outlet end (3) of the container, and at least one slot (8) provided towards the top of the dome. A rigid cap (9) is provided to be fixed to the container end (3) fitted with the membrane (M) and to partially cover the dome (5) in a region surrounding the slot (8) which remains uncovered; projecting bearing means (A) are provided on at least one of the two surfaces formed by the internal surface (13) of the cap and the external surface (14) of the membrane. and said internal surface (13) of the cap assumes the shape of the external surface (14) of the membrane, when it is in a free condiiton, except for said bearing means (A). The assembly is such that at the end of the setting in place of the rigid cap (9) on the container (2), the action of the bearing means (M) causes a deformation of the dome (5) of the membrane and a sealing application of the edges (8a, 8b) of the slot against each other.
Patent CA-2069153-C (CA)
Title: Pharmaceutical composition
Inventor: RICHTER FRIEDRICH
IPC: A61K47/32
Filed: 1992-05-21
Granted: 2002-12-17
Abstract: The invention concerns topical formulations such as nail varnishes comprising as the active agent the compound of formula I (See formula I) in free base form or in acid addition salt form, together with a polymeric film former and further excipients as appropriate. It also concerns a process of preparation of such preparations by mixing with an appropriate polymeric film former and conventional further excipients as appropriate, and a method of treatment of onychomycosis.
Patent CA-2069638-C (CA)
Title: Mri image enhancement of bone and related tissue using complexes of paramagnetic cations and polyphosphonate ligands
Inventor: KLEIN JOSEPH Y
IPC: A61K49/00
Filed: 1990-10-17
Granted: 1999-02-09
Abstract: Polyphosphonate ligands containing three or more phosphonate groups, combined with paramagnetic metal cations and adminictered in the form of pharmacologically acceptable salts, are useful as MRI contrast enhancement agents, which tend to localize in bone tissue without being conjugated to bone-specific biomolecules. Triazacyclononanes and tetraazacyclododecanes, with dihydroxyphosphorylmethyl or dihydroxyphosphorylethyl groups, optionally substituted at the methyl or ethyl bridges with alkyl, aryl, hydroxyl or amino groups, are particularly preferred.
Patent CA-2073813-C (CA)
Title: Siloxane copolymers containing alkenyl groups, their preparation and use
Inventor: HERZIG CHRISTIAN
IPC: C08G77/50
Filed: 1992-07-14
Granted: 1997-03-04
Abstract: Siloxane copolymers containing alkenyl groups are prepared by reacting an organic compound (1) containing at least two aliphatic double bonds of the general formula R2(CR3=CH2)x in which R2 is a divalent, trivalent or tetravalent hydrocarbon radical having from 1 to 25 carbon atoms per radical, R3 is a hydrogen atom or an alkyl radical having from 1 to 6 carbon atoms per radical and x is 2, 3 or 4, with an organopolysiloxane (2) having an average of more than one Si-bonded hydrogen atom per molecule, in the presence of a catalyst (3) which promotes the addition of Si-bonded hydrogen to an aliphatic double bond, in which the ratio between the aliphatic double bond in the organic compound (1) and the Si-bonded hydrogen in the organopolysiloxane (2) is such that the alkenyl containing siloxane copolymers thus obtained have an average of more than one alkenyl group per mole-cule of the formula -CR3=CH2, in which R3 is the same as above.
Patent CA-2074493-C (CA)
Title: Treatment of pruritis with esters and amides
Inventor: THORNFELDT CARL RICHARD
IPC: A61K31/60
Filed: 1991-02-11
Granted: 1995-10-03
Abstract: This invention relates to a new topical pharmaceutical composition for the treatment of pruritis, especially psychogenic and senile types, that contains esters and amides of 5 to 19 carbon atom length monocarboxylic acids.  These esters and amides are formulated alone or with other known topical antipruritic agents, much as amine and "caine" anesthetics, alcohols, ketones, antihistamines, corticosteroids, counterirritants and any combination of these.
Patent CA-2075388-C (CA)
Title: Modification of sucrose accumulation in potato tubers
Inventor: BLUNDY KEITH STUART
IPC: A01H5/04
Filed: 1992-08-06
Granted: 2006-10-10
Abstract: A defined gene sequence is used, in sense or antisense orientation to transform potato such that less sugar is stored in the tubers of the transformed plant.
Patent CA-2078626-C (CA)
Title: Method for producing polyamide carpet fibers with improved flame retardancy
Inventor: SHORE GARY W
IPC: C08K3/105
Filed: 1992-09-18
Granted: 1999-04-27
Abstract: A method for producing halogen-free, antimony-free and  phosphorus-free  polyamide  fibers  is  described  by incorporating an additive into the polyamide which comprises a vulcanizable  mixture  of  silicones  and  a  catalyst  in  a thermoplastic  matrix.   The  fibers  have  improved  flame retardancy, and are used for the manufacture of carpets.