baber/WOPTO huggingface dataset:
Patent CA-2101344-A1 (CA)
Title: Method and apparatus for adjusting the impedance of a microstrip transmission line
Inventor: MORTENSEN DUANE L
IPC: H01P1/18
Filed: 1993-07-27
Abstract: The interdigital capacitor (10) including a plurality of conductive and dielectric finger regions. The conductive finger regions are made of the same material type as a microstrip transmission line (12). The conductive finger regions are comprised of individual conductive fingers (14) and the individual conductive fingers (14) provide a predetermined level of impedance to the microstrip transmission line.  The plurality of conductive finger regions are comprised of a first finger region (18) and a second finger region (20).  The first finger region (18) is coupled to the microstrip transmission line (12) and the second conductive finger region (20) is coupled to ground (22).  The individual conductive fingers (14) of the first conductive region (18) are located parallel and interspersed with the individual conductive fingers (14) of the second conductive finger region (20).  Because the individual fingers (14) of the conductive finger region provide a predetermined level of impedance to the interdigital capacitor (10), the value of the interdigital capacitor (10) can be adjusted by a known amount by removing one or more individual conductive fingers (18).  This in turn provides a known response in the phase of a signal travelling on the microstrip transmission line (12).
Patent CA-2102327-A1 (CA)
Inventor: SHEN PAUL
IPC: H04N19/89
Filed: 1993-11-03
Abstract: A method and apparatus are provided for decoding variable length codewords carried in data blocks. A first buffer is loaded with a succession of data blocks. A second buffer is loaded with a first data block from the first buffer during a decoding cycle. The variable length codewords from the first data block in the second buffer are decoded to recover information. The process continues, with the second buffer being loaded with one data block at a time to successively decode new data blocks during successive decoding cycles.
Patent CA-2103333-A1 (CA)
Title: Oo-t-alkyl o-polycaprolactone monoperoxycarbonates
Inventor: MACLEAY RONALD E
IPC: C07C409/40
Filed: 1993-11-17
Abstract: OO-t-ALKYL O-POLYCAPROLACTONE MONOPEROXYCARBONATES     Abstract of The Disclosure Polycaprolactones are capped with OO-t-alkylperoxy carbonate groups useful in the preparation of polycaprolactone block and graft copolymers, processes for their preparation and use and intermediates suitable for use in said processes as well as the use of said copolymers as compatibilizing agents for blends of immiscible polymers are provided.
Patent CA-2103447-A1 (CA)
Title: Use of nano particles as pharmaceutical carriers
Inventor: MOREIN BROR
IPC: A61K47/28
Filed: 1992-06-01
Abstract: The invention refers to the use of an inert, structure-giving, deadjuvanated matrix of a complex of a sterol, such as cholesterol, and one or more saponins as a carrier for the administration at of a pharmaceutically active substance, and a drug carrying particle comprising said inert structure-giving matrix to which has been connected a pharmaceutically active substance. The drug carrying particle, delpha, has an annular basic structure which can form spherical nano particles having a size of 30-50 nm and a narrow size distribution.
Patent CA-2104632-A1 (CA)
Title: Air cycle machine with magnetic bearings
Inventor: ANDRES MICHAEL
IPC: F01D25/16
Filed: 1993-08-23
Abstract: An air cycle machine for producing a supply of cooled air and including a compressor rotor fixed to a shaft which is driven by a turbine rotor, the turbine serving to expand air which is pressurized by the com-pressor. Magnetic bearings support the shaft radially in a housing for rotation about a precisely established axis while a magnetic thrust bearing keeps the shaft in a precisely fixed axial position. The housing and the bearings are constructed as two split sections to permit the housing and the bearings to be separated radially and facilitate repair and/or replacement of the shaft and other internal components.
Patent CA-2105531-A1 (CA)
Title: Optical reproduction system
Inventor: MAST FRED
IPC: G02B17/02
Filed: 1993-09-03
Abstract: Optical Reproduction System Abstract The optical reproduction system comprises an eeven number (e.g., four) of reflecting surfaces for producing an image rotated 90° relative to an object to be produced, on an image plane that is parallel to the plane of the object. The incoming optical axis and the outgoing optical axis rest on the same straight line.                                   (Fig. 1)
Patent CA-2107067-A1 (CA)
Inventor: DUTTA MITRA
IPC: H01L29/12
Filed: 1993-09-27
Abstract: Disclosed generally herein is a quantum wire embedded in another material or a quantum wire which is free standing.  The quantum wire structure is fabricated such that a quantum well semiconductor material, e.g. Gallium Arsenide (GaAS), is embedded in a quantum barrier semiconductor material, e.g. Aluminum Arsenide (AlAs).  Preferably, the entire quantum wire structure is engineered to form multiple subbands and is limited to a low dimensional quantum structure having dimensions around 150x250 .ANG..          This structure has a negative absolute conductance at a predetermined voltage and temperature.  Due to resonant behaviour of the density of states, the rates of electron scattering in the passive region (acoustic phonon and ionized impurity scattering as well as absorption of optical phonons) decrease dramatically as the electron kinetic energy increases.  In operation, an electric field and/or laser pulses inject electrons into the quantum structure; the electrons, then, exhibit transient negative drift velocities.  At injection energies which are a multiple of the optical phonon energy, the electric field forces the electrons from the negative part of the ?-space to the lower energy subbands, excluding them from re-emission.  Electrons from the positive part of the ?-space, however, emit optical phonons and are forced to bottom of the subband.  As a result, electrons with high negative velocity dominate over those electrons with high positive velocity and cause the current flowing against the applied electric field, otherwise known as negative absolute conductance.  This transient process lasts about 1 to 3 picoseconds in the field range of 100 to 500 v/cm.
Patent CA-2110326-A1 (CA)
Title: Refrigerant gas leak detector
Inventor: MARTELL DENNIS
IPC: G01M3/22
Filed: 1993-11-30
Abstract: A refrigerant gas leak detector for detecting the location of leaks of refrigerant gas such as halogen has a sensing tip with a pair of electrodes across which a relatively high voltage is generated to cause a corona current to pass through the electrodes. The voltage applied across the electrodes is varied to maintain the corona current through the electrodes at a substantially constant magnitude. The leak detector includes a gas sensing circuit that detects changes in the concentration of refrigerant gas by sensing the voltage applied to the electrodes. The sensitivity of the gas sensing circuit is automatically varied based on the concentration of refrigerant gas present. The leak detector includes a signal generating circuit that causes a number of audible and visual indications to be generated based on the concentration of refrigerant gas sensed as well as other operating conditions. The leak detector also has a circuit for detecting the presence of an abnormal operating condition, which is assumed to occur when the corona current falls below its substantially constant magnitude.
Patent CA-2113310-A1 (CA)
Inventor: NEUERT RICHARD
IPC: D06M11/38
Filed: 1994-01-12
Abstract: Abstract of the Disclosure A process for maintaining or increasing the tensile strength of fibers of aromatic copolyamides which are built up chiefly from para-monomers and are soluble in organic aprotic and polar solvents in the course of storage in alkaline media is described.  The process comprises the measures: a)   production of fibers from the said aromatic copolyamides by dry or wet spinning processes which are customary per se, b)   after-treatment of the resulting fibers in a manner which is known per se, and c)   storage of the fibers in an aqueous environment which has a pH of at least 10 for at least a period of time and at a temperature such that the tensile strength of the said fibers, based on the tensile strength of the fibers employed in step c), is at least retained or increased.
Patent CA-2115765-A1 (CA)
Title: Ring-to-ring cardiac electrogram
Inventor: ANDERSON RUSSELL E
IPC: A61N1/368
Filed: 1993-06-17
Abstract: A pacemaker having two bipolar leads, one atrial, one ventricular, each with TIP and RING electrodes, configured as for conventional bipolar pacing/sensing in both chambers. Switching circuitry (50-61) in the pacemaker is operable to select from among various possible sensing configurations, including one configuration in which sensing is performed between the ring electrodes of the respective pacing/sensing leads. Pacing is preferably performed in a conventional unipolar configuration in each chamber, from the respective tip electrodes. The "ring-to-ring" EGM signal is applied to filtering and EGM amplifier circuitry (64), and then provided to a telemetry system for transmission to an external receiver.  The ring-to-ring EGM signal possesses the high resolution properties of conventional intracardiac signals, and is relatively unaffected by the after-potentials and tissue polarization effects that arise when the same lead is used for pacing and sensing.  Additionally, the ring-to-ring EGM signal is a composite of atrial and ventricular electrical signals, and thus has an appearance similar to that of suface ECGs.
Patent CA-2116425-A1 (CA)
Inventor: GOLSON J GEOFFREY
IPC: G09B29/02
Filed: 1994-02-24
Abstract: A bound volume of cartographic material that includes a plurality of rectangular leaves of a first height and width, with each of the leaves having a top and a bottom edge and a first and second edge, and a cover.  The cover includes a first panel and a second panel, with the first panel having a first and a second side edge.  The first panel is bound by a metal binding mechanism along the first side edge, and the second panel is hingedly connected to the second side edge of the first panel.  The second panel is proportioned to fold over the first panel and to fold out and lie adjacent the second side edge of the first panel. The second panel, when folded out, displays first, small scale cartographic indicia and key grid indicia, with the key grid indicia including multiple grid sections overlying the first cartographic indicia.  Each of the leaves defines second, large scale cartographic indicia and bears a key grid indicium, with the cartographic indicia on an individual leaf corresponding to the cartographic indicia in one of the grid sections, and the key grid indicium on the individual leaf corresponding to the key grid indicia for one of the grid sections. The second panel and the leaves may be used in juxtaposition to view, coordinate, and compare the large scale and the small scale cartographic indicia in a side-by-side relationship.
Patent CA-2116984-A1 (CA)
Title: Alloyed hot dip galvanized steel sheet
Inventor: ISOBE MAKOTO
IPC: C22C38/14
Filed: 1994-03-04
Abstract: ABSTRACT OF THE DISCLOSURE    An alloyed hot dip galvanized steel plate having high press workability and excellent plating separation resistance.  The alloyed hot dip galvanized steel plate is obtained by forming an alloyed hot dip galvanized layer which contains 9 - 12 weight % of Fe and 0.3 - 1.5 weight % of Al on the surface of a ultra-low-carbon steel plate so that the amount of the adhesion thereof is from 25g/m2 - 70g/m2.
Patent CA-2117054-A1 (CA)
Inventor: UEHIRA SHOJI
IPC: B65D47/34
Filed: 1994-03-04
Abstract: A foam dispensing pump container, for dispensing foam by mixing air pumped from an air cylinder by an air piston having suction holes in its upper wall and a foamable liquid pumped from a liquid cylinder by a liquid piston having an annular projection on its outer wall, provided with an elastic valve member including a cylindrical wall portion, an outer thin annular valve portion extending outwardly from the cylindrical wall portion, and an inner thin annular valve portion extending inwardly from the cylindrical wall portion.      The elastic valve member is arranged such that the cylindrical wall portion is in contact at least partially with an inner surface of the upper wall between the suction holes and an air passage, the outer thin annular valve portion is in contact, at its outer annular rim portion, with an inner surface of the upper wall extending outwardly beyond the suction holes, and the inner thin annular valve portion is in contact, at its inner annular rim portion, with the annular projection of the liquid piston below the air passage.
Patent CA-2117723-A1 (CA)
Title: Method and means for separating leader from film in photographic processing machine
Inventor: SHIMAMURA YASUNOBU
IPC: G03D3/13
Filed: 1994-09-19
Abstract: The leader attached to a web of film is cut from the film while processing the film in a photographic processing machine.  Before feeding the film to the printing unit, the leader is separated from the film.  At a turning point where the film feed direction extending from the film drying unit to the printing unit changes, the film is fed straight ahead and the leader is cut off the film by a cutter.  The film is fed back in a reverse direction and its end is turned up by a guide.  When the printing unit gets vacant, the film without the leader is fed into the printing unit.
Patent CA-2122603-A1 (CA)
Inventor: BITAR ALI A
IPC: G01D5/48
Filed: 1991-12-23
Abstract: 2122603 9313388 PCTABS00024 An apparatus (102) is adapted to detect the linear extension (position), velocity and acceleration of a hydraulic cylinder (108).  The hydraulic cylinder (108) defines a variable lenght coaxial resonant cavity (112). Under the control of a controller (228), an RF transmitting section (114) and an RF receiving section (116) are used to determine the resonant frequency of the cavity. The resonant frequency of the cavity (112) is determined by comparing a received signal with a threshold and detecting slope intercept conditions.
Patent CA-2123616-A1 (CA)
Inventor: BERNARDO RICHARD G
IPC: B60P7/02
Filed: 1994-05-16
Abstract: A position control, latch, and locking apparatus for use with a retractable cover used to securely enclose a pickup truck utility bed.   The latch and lock mechanism is placed in a modified lead slat of the cover for latching to the cover guide tracks and to the tailgate.  A key lockable actuating handle in placed on the slat concealing linkage arms pivotally connected to  the  handle  further  attached  to  a  first  and  second diametrically opposed push rod for simultaneous operation of a four point spring biased latching mechanism.  A flexible scrap is connected to the cover to manually move the cover.   The latching mechanism secures the cover to the sidewalls of the pickup truck as well as locking the tailgate in an upright position.  A tailgate lip cover and attachment device is also disclosed  for securely  fastening the modified slat to the tailgate and provide a planar surface allowing for sealing and concealment of the latching mechanism.
Patent CA-2130761-A1 (CA)
Title: Method for structuring an expert system utilizing one or more neural networks
Inventor: WANG SHAY-PING T
IPC: G06N3/04
Filed: 1994-08-24
Abstract: METHOD FOR STRUCTURING AN EXPERT SYSTEM  UTILIZING ONE OR MORE NEURAL NETWORKS                     Abstract of the Disclosure Neural networks learn expert system rules, for either business or real-time applications, to improve the robustness and speed of execution of the expert system.  One or more neural networks are constructed which incorporate the production rules of one or more expert systems.  Each neural network is constructed of neurons or neuron circuits each having only one significant processing element in the form of a multiplier. Each neural network utilizes a training algorithm which does not require repetitive training and which yields a global minimum to each given set of input vectors.
Patent CA-2130877-A1 (CA)
Inventor: SERIZAWA MASAHIRO
IPC: G10L25/90
Filed: 1994-08-25
Abstract: A plurality of pitch period transition paths are extracted by pitch tracking over a frame, and a path of minimum average prediction gain over the frame is selected from the extracted paths.  A subsequent preliminary pitch selection may be executed in a sub-frame processing to select a plurality of candidates from the neighbourhood of the pitch of the transition path selected for each sub-frame.   The selection uses the inner product of the input speech signal and codebook codevectors.          Finally, a pitch period having a minimum waveform distortion is selected for each sub-frame.
Patent CA-2131104-A1 (CA)
Inventor: TAMAMURA MASAYA
IPC: H03K3/0231
Filed: 1994-08-30
Abstract: A signal processing device includes a first PLL circuit operating in synchronism with a serial input data signal, and a second PLL circuit operating in synchronism with an external reference clock signal. The oscillation frequency of the first PLL circuit is controlled by the second PLL circuit.
Patent CA-2131427-A1 (CA)
Inventor: DAVIS ALAN R
IPC: B60W10/10
Filed: 1994-09-02
Abstract: A control system/method for controlling the shifting of automated mechanical transmission systems (10) is provided. In a preferred embodiment, the control system/method (FIG. 4) defines the window ((OS*GRT) + K >/= ISE >/= (OS*GRT)) for synchronous engagement (for shifts other than compound upshifts) such that jaw clutch (112/114, 116/118) engagement will occur or tend to occur when the input shaft (16) is rotating at speed (IS) equal to or slightly greater than a true synchronous speed (OS*GRT) to provide a "push" sensation upon jaw clutch engagement. <IMAGE>
Patent CA-2132611-A1 (CA)
Inventor: SONDERMEYER JACK C
IPC: H03F1/02
Filed: 1994-09-21
Abstract: An amplifier switchably operative in a plurality of voltage modes depending upon the level of the input signal is disclosed.          A circuit for each voltage mode includes a common driver for each level and a plurality of output devices arranged in parallel.  Each output device is operative at a selected voltage level and is coupled to the common driver for the corresponding voltage mode.          One output device of each level is coupled in series to an output device of the next lower level.   A switching diode circuit is coupled between series connected outputs of each output device.  In one embodiment, paired diodes are coupled to each level in a common terminal of the diodes are coupled to the input.  A regulator is provided for causing the driver and the output devices of each next higher level to turn on prior to the input signal achieving a selected voltage level.  The circuit thus provides smooth switching between levels with reduced distortion.
Patent CA-2134767-A1 (CA)
Inventor: HERZIG CHRISTIAN
IPC: C07F7/08
Filed: 1993-06-11
Abstract: PCT No. PCT/EP93/01487 Sec. 371 Date Oct. 20, 1994 Sec. 102(e) Date Oct. 20, 1994 PCT Filed Jun. 12, 1992 PCT Pub. No. WO93/25559 PCT Pub. Date Dec. 23, 1993.The present invention provides photoactive sulfonium salts which can be employed as photoinitiators for the polymerization of cationically polymerized organic substances and are soluble in these substances.
Patent CA-2135244-A1 (CA)
Inventor: KNIFTON JOHN F
IPC: C07C43/04
Filed: 1994-11-07
Abstract: DIISOPROPYL ETHER/METHYL TERTIARY BUTYL  BUTYL ETHER COGENERATION FROM ACETONE         (D#81,273 -F) Disclosed is a two-step process for the generation of diisopropyl ether from a crude by-product acetone stream which comprises: a)   Hydrogenating said crude acetone over a bulk-metal, nickel rich catalyst to give an isopropanol-rich effluent; b)   Dehydrating said isopropanol-rich intermediate in the presence of a strong acid zeolite catalyst from the group consisting of .beta.-zeolite, optionally modified with one or more metals from Group IB, VB, VIB, VIIB and VIII of the Periodic Table, and a dealuminized Y-zeolite, wherein the dehydration temperature is from about 80°C to 200°C.
Patent CA-2135504-A1 (CA)
Title: Safety and restraining harness
Inventor: ROBERSON LINDA K
IPC: A47D15/00
Filed: 1994-11-09
Abstract: ABSTRACT OF THE DISCLOSURE      This invention relates to a reinforced human safety and restraining harness including a front vest, a pair of criss-crossing back straps, a waist belt, a reinforcing belt, and a tether belt.  The back straps are sized to fit over the back of a person in a criss-crossing fashion from top to bottom and secured to the top of the front vest and releasably secured at the bottom to the waist belt.  The reinforcing belt extends from an adjustable means and is adjustably mounted to reinforce the entire harness and support the person therein.  The tether belt extends from the reinforcing belt and terminates around a guardian's wrist, on a restraining element, or releasably secured around the waist belt.
Patent CA-2135681-A1 (CA)
Inventor: MAKAM SRINIVAS V
IPC: H04N7/173
Filed: 1994-11-14
Abstract: An apparatus that retrieves data from a plurality of long-term memory devices and delivers the data to a packet network over a plurality of channels, wherein each of the channels has a specific bandwidth requirement. The apparatus comprises a storage device adaptor which is connected to the long-term storage devices (such as disk systems, CD ROM, etc.). The adaptor reads data responsive to a selected channel from a storage device to a location in a buffer memory. A  network interface reads data from the location in the buffer memory, formats the data, and sends the data to the packet network. A controller selects the channel in such a way that all channels receive their required bandwidth. The controller includes a table having a plurality of entries, wherein each entry may contain a channel identification. All channels have at least one entry in the table, and channels that require more bandwidth have multiple entries in the table.
Patent CA-2139626-A1 (CA)
Title: Lean-burn internal combustion gas engine
Inventor: LAMBERT JOHN E
IPC: F02B1/04
Filed: 1993-06-24
Abstract: A small bore internal combustion engine having a four-stroke operating cycle which is adapted to function with natural gas and other gaseous fuels which is particularly useful with residential heat pump assemblies with maximum lide expectancy, high thermal efficiency, and low exhaust gas emissions, wherein provision is made for assembling the engine in a compact heat pump system with a low operating noise level and an extended engine maintenance interval.
Patent CA-2140127-A1 (CA)
Title: Cytotoxic T-Lymphocyte Antigen as Cysteine Protease Inhibitor
Inventor: MULLER DANIEL
IPC: C07K14/81
Filed: 1993-07-15
Abstract: PCT No. PCT/US93/06552 Sec. 371 Date May 18, 1995 Sec. 102(e) Date May 18, 1995 PCT Filed Jul. 15, 1993 PCT Pub. No. WO94/02504 PCT Pub. Date Feb. 3, 1994Disclosed are molecules which inhibit the proteolytic activity of cysteine proteases such as Cathepsin H, Cathepsin L and papain, and methods for using molecules which have the biological properties of cytotoxic T-lymphocyte antigen for inhibiting cysteine proteases and inhibiting proteoglycan degradation.
Patent CA-2141878-A1 (CA)
Title: Washing composition
Inventor: SHANA A MAY
IPC: A61K8/00
Filed: 1993-07-31
Abstract: The present invention relates to the washing composition. More particularly, the invention relates to compositions for washing the human body which deliver oily components to the skin or hair. We have now determined that, foaming, mild washing compositions having an oily skin benefit can be formulated with: (a) an oily component; (b) one or more nonionic sugar-based surfactant, said surfactant being present in weight excess over the oily component, and; (c) a water soluble cationic polymer. Generally, the sugar based nonionic is selected from the group comprising aldonamides, alkylpolyglycosides and mixtures thereof.