baber/WOPTO huggingface dataset:
Patent CA-2059464-A1 (CA)
Inventor: NAGAMOTO SHUNICHI
IPC: H04L25/49
Filed: 1992-01-16
Abstract: This serial data receiving apparatus is intended to realize the receiving process of serial data having an inferior SN ratio with a simple arrangement and at low cost.  A one-bit length of the serial data is divided into several blocks.  The sampling data is input at multiple points of each block by using a shift register built in a microcomputer.  The data is temporarily held so that the data at the same number block of each block is accumulated for several bits.          The accumulation of the data results in cancelling the noise components and leaving the original signal components.  This overlapping type receiving system makes it possible to clarify the receiving phase of a preamble signal for bit synchronization and to establish the bit synchronization.  Next, the sampling data signals are entered at the multiple points based on the resulting receiving timing and the logic value of the bit is determined according to the ratio of the number of values of "1" to "0" contained in the data.  Further, by using the reversal symmetry of the first half and the second half of the bi-phase codes, it is possible to realize the methods for establishing bit synchronization and determining a logic bit more effectively and accurately.
Patent CA-2060576-A1 (CA)
Inventor: HIRABAYASHI KATSUHIKO
IPC: G02F1/21
Filed: 1992-02-03
Abstract: A tunable wavelength-selective filter including a glass substrate, a transparent electrode layer, a high reflective mirror, an alignment layer, a liquid crystal layer, an alignment layer, a transparent material layer whose refractivity index is substantially equal to that of the liquid crystal layer, a high reflective mirror, a transparent electrode layer, and a glass substrate, which are stacked in this order.  An etalon cavity of the filter includes two layers, the liquid crystal layer and the glass plate as a transparent material layer, which enables to lengthen the cavity length without increasing absorption and scattering of the cavity.  This makes it possible to narrow FWHM, quicken the response time, and increase the transmittance of the filter.  As applications of the filter, a double cavity structure tunable wavelength-selective filter of a wide tunable range, and a photodetector of a simple construction can be realized.
Patent CA-2060616-A1 (CA)
Title: Use of 4-(3-trifluoromethylphenyl)-1,2,3,6-tetrahydropyridine derivatives as free radical scavengers
Inventor: HEAULME MICHEL
IPC: A61P25/28
Filed: 1992-02-04
Abstract: The invention concerns the use of a compound of formula (I) <(see formula I) wherein R and R1, each independently, represent a hydrogen atom or a methyl group, and its pharmaceutically acceptable acid addition salts, as free radical scavengers. The pharmaceutical compositions containing these compounds may be employed in the treatment and/or prevention of pathological processes involving cell damage due to the formation of free radicals: The invention also concerns the compounds of formula (I) wherein at least one of R and R1 is methyl, which are new compounds, as well as the process for the preparation thereof and the pharmaceutical compositions containing them.
Patent CA-2065950-A1 (CA)
Inventor: TREMBLAY REMY
IPC: G01G19/12
Filed: 1992-04-14
Abstract: A weighing apparatus is put forward for weighing a load carried by a load support provided with front and rear wheel assemblies each having at least one member which deforms as a result of the load. The apparatus comprises a plurality of strain  transducers  to  be  affixed  respectively  to  the members.  Each of the transducers includes a pair of spaced apart brackets to be fixedly secured to the corresponding member such that their upper ends come closer to one another when the corresponding member is deformed, and an elongated load cell having opposite ends attached respectively to the upper ends of the brackets. The load cell is provided with strain sensing elements for producing an electrical strain signal indicative of a strain variation substantially along a longitudinal axis of the load cell.  The apparatus also comprises a processing unit having inputs for receiving the strain signals of each of the strain sensing elements, a microcontroller for processing signals  derived from the strain signals and determining thereof the load and parts of the load supported by each of the wheel assemblies, and a display unit connected to the microcontroller for displaying the determined load measures.   Each of the load cells is initially subjected to a predetermined longitudinal strain when the load support is empty. When the load support is loaded, the members deform as a result of the load, bringing closer the upper ends of the pairs of brackets to one another, thereby reducing the longitudinal strain in the corresponding load cells such that the processing unit can determine and display the load and the parts of the load supported by each of the wheel assemblies.
Patent CA-2067899-A1 (CA)
Inventor: RICHMOND ROBERT L
IPC: H04M1/82
Filed: 1992-05-01
Abstract: Device for detecting and identifying call progress tones on telephone lines.  The application discloses a device for converting auditory call progress tones to visual indications and a novel circuit for identifying and distinguishing call progress tones based on their on-off cadence, if any, along with various alternative embodiments including: (1) a device which converts call progress tones to visual indications as for use by the deaf, (2) a device which is programmed to automatically go off-hook at certain times, detect a tone such as a stuttered dial tone indicating a message waiting, and activate a visual indicator, and (3) the use of a capacitor or rechargeable battery which is periodically refreshed by the device automatically going off-hook and which, while the device is on-hook, provides power required by the device.
Patent CA-2068111-A1 (CA)
Title: Compressor stator
Inventor: KOERTGE THOMAS S
IPC: F04D29/64
Filed: 1992-05-07
Abstract: Patent 13DV-10527 ABSTRACT           A compressor stator includes an axial centerline axis and has a unitary annular outer case and a plurality of circumferentially spaced outer hooks extending radially inwardly therefrom.   A circumferentially segmented inner case is disposed radially inwardly within the outer case and includes a plurality of arcuate inner case segments, each including an arcuate shroud and at least one inner hook extending radially outwardly therefrom, with respective ones of the outer and inner hooks being axially slidably joined to each other for radially supporting an inner surface of the shroud at a common radius.
Patent CA-2068583-A1 (CA)
Title: A joint, a laminate, and a method of preparing a nickel-titanium alloy member surface for bonding to another layer of metal
Inventor: HALL TODD A
IPC: B23K1/19
Filed: 1992-05-13
Abstract: A joint and a laminate including a nickel-titanium alloy such as nitinol and a method for preparing the surface of a nickel-titanium alloy member for bonding solder material and, electively, another similar or dissimilar member thereto. The method includes applying an aluminum paste flux to the titanium oxide coated surface of a nickel-titanium alloy member and heating the flux to its activation temperature. The flux removes and suspends the titanium oxide therein along with leaching titanium from the base alloy member surface to form a nickel-rich interface surface. The activated flux also coats the nickel-rich interface layer for protection from further oxidation. A bonding material such as a tin-silver solder is flowed onto the nickel-rich interface surface to displace the activated flux. Electively, another member is applied to the molten solder to form a joint between the two members. The residual flux is cleaned from the joint to prevent further deterioration of the base metal. The solder joint includes the base nickel-titanium alloy metal, the nickel-rich interface surface, and the solder material. Electively, any other member may be applied to this joint in the molten state to form a metallic bond therebetween.
Patent CA-2070026-A1 (CA)
Inventor: YAMAMURA MASAAKI
IPC: G03G5/082
Filed: 1992-05-29
Abstract: An electrophotographic light-receiving member comprises a conductive substrate and a light-receiving layer having a photoconductive layer and a surface layer which are successively layered on the conductive substrate, wherein; the photoconductive layer is comprised of a non-monocrystalline material mainly composed of a silicon atom and containing at least a carbon atom, a hydrogen atom and a fluorine atom; the surface layer is mainly composed of a silicon atom and contains a carbon atom, a hydrogen atom and a halogen atom; the carbon atom in the photoconductive layer is in a non-uniform content in the layer thickness direction and in a higher content on the side of the conductive substrate and in a lower content on the side of the surface layer at every point in the layer thickness direction, and is in a content of from 0.5 atomic % to 50 atomic % at, or in the vicinity of, its surface on the side of the conductive substrate and substantially 0% at, or in the vicinity of, its surface on the side of the surface layer; the fluorine atom in the photoconductive layer is in a content of not more than 95 atomic ppm; and the hydrogen atom in the photoconductive layer is in a content of from 1 to 40 atomic %.
Patent CA-2070210-A1 (CA)
Inventor: FUCHS HARALD
IPC: G11B9/00
Filed: 1992-06-02
Abstract: O.Z. 0050/42487 Abstract of the Disclosure: A process for the selective modification and reversible removal of extremely fine structures having dimensions of down to the nanometer and subnanometer range from the surface of a solid, comprises moving the fine tip of a probe, for example a surface-sensitive scanning probe, which is located at a distance in the .ANG.ngstrom range above the surface or is in contact with the surface, over the structure at essentially the same height and thus causing a change in this structure.
Patent CA-2073918-A1 (CA)
Inventor: PAIK WOO H
IPC: H04B3/06
Filed: 1992-07-15
Abstract: Convergence of a complex adaptive equalizer used in digital communications is substantially improved by updating all coefficients of the equalizer during each filter clock cycle. Complex signal data is passed through a plurality of successive delay stages to provide N sets of delayed complex signal data. The product of each set and a complex error signal is obtained. Each product is concurrently updated with previous product data for the set to provide N sets of updated complex coefficients for selective input to equalizer filters. In an illustrated embodiment, the updated coefficients are truncated and their gain is adjusted prior to input to the filters. The updated coefficients can be multiplexed to provide a clocked stream of coefficient sets for input to the equalizer filters. A VLSI implementation of the equalizer is also disclosed.
Patent CA-2074163-A1 (CA)
Title: Herbicidal sulfonylureas
Inventor: ZIMMERMAN WILLIAM T
IPC: C07D487/04
Filed: 1991-01-09
Abstract: The invention relates to herbicidal sulfonylurea compounds, agriculturally suitable compositions thereof and a method for their use as general or selective preemergent or postemergent herbicides or plant growth regulants.
Patent CA-2077546-A1 (CA)
Title: Human olfactory neuron cultures
Inventor: WOLOZIN BENJAMIN L
IPC: C12Q1/70
Filed: 1991-03-06
Abstract: The present invention relates to a culture of human olfactory neurons. The neurons may display a normal neuronal pathology or a pathology characteristic of a generalized central nervous system disease. The cultured neurons can be used for neurotoxicity tests, screening for therapeutic drugs and anti-viral agents, and diagnosing Alzheimer's disease.
Patent CA-2081098-A1 (CA)
Title: Circular heat exchanger
Inventor: DARRAGH CHARLES T
IPC: F28D9/00
Filed: 1990-08-20
Abstract: Circular heat exchangers have been used to increase the efficiency of engines by absorbing heat from the exhaust gases and transferring a portion of the exhaust heat to the intake air. The present heat exchanger (10) is built-up from a plurality of preformed involute curved cells (30) stacked in a circular array to provide flow passages (32, 34, 36) and (38, 40, 42) for the donor fluid (20) and the recipient fluid (16) respectively. The stacked cells (30) are welded along a portion of their edges to secure them in the stacked circular array. Each of the cells (30) have a plurality of corners with the core (22) presenting corresponding corners after the cells (30) are welded together. In order to reinforce the core (22) against thermal stresses and forces generated by pressures of the fluids (16, 20), circumferential welds (140) are provided at each of the corners.
Patent CA-2082370-A1 (CA)
Inventor: THALER KENNETH
IPC: E04D13/14
Filed: 1992-11-06
Abstract: A clamp for a roof device such as a sleeve for a pipe protruding from a roof having a sealing sheet.  There is a skirt, the underside of which abuts a surface of the roof and which underlies the sealing sheet.  There is a clamping ring and the sheet is sandwiched between the ring and the skirt. The ring has two lower edges having a downwardly directed concavity defined between them such that a first of the edges abuts the sheet so that an upper surface of the ring may be pressed downwardly by a fastener to press the edge against the sheet to localize compressive forces between the edge, sheet and skirt to seal against entry of water between the sheet and skirt.  The device disclosed is a pipe sleeve of spun aluminum.  There is a circular base ring adhesively fastened to the underside of the skirt and the clamping ring is circular and of flexible aluminum, with a crescent-shaped cross-section.  The arrangement is such that the circumferential edges of the clamping ring are coextensive with the circular base ring.  Typically the elements of the device have communicating apertures for insertion of bolts upwardly therethrough and nuts are screwed onto the bolts for fastening of the elements together.
Patent CA-2083322-A1 (CA)
Title: Reversible direction capsule chemistry sample liquid analysis system and method
Inventor: ZABETAKIS GEORGE
IPC: G01N35/08
Filed: 1992-11-19
Abstract: Sample liquid analysis apparatus and method are provided, and comprise the formation and supply to a conduit of a stream of successive sample liquid test packages, and the repeated bi-directional displacement of the sample liquids test package stream in the conduit through one, or a plurality of spaced, sample liquid analysis apparatus which are operatively associated with the sample liquid conduit to provide for repeated, time-spaced analyses in turn of the sample liquids in each of the sample liquid test packages. Each of the sample liquid test packages comprises a first segment of a sample liquid and a first reagent liquid, and a second segment of a second reagent liquid spaced from the first segment by a different fluid in the test package. The conduit includes a portion which is operable to combine the respective first and second segments of each of the sample liquid test packages upon the flow of the same therethrough to commence the sample and reagent liquids reaction for sample liquid analysis; and the, or at least one of the, sample liquid analysis apparatus is disposed upstream in the conduit of this conduit portion to enable independent analyses of the respective first and second segments of the sample liquid test packages in turn prior to the combination thereof. Precisely operable, positive displacement pumping, operatively associated with the conduit inlet, or with both the conduit inlet and outlet and, in that event, precisely coupled to provide for differential pumping, is utilized for the formation and supply of the sample liquid test packages in turn to the conduit to form the sample liquids test package stream therein, and for the repeated bi-directional displacement of that stream in the conduit. An isolation liquid which is immiscible with the sample and reagent liquids, and which preferentially wets the walls of the conduit to the substantial exclusion of those liquids, is introduced to the conduit to minimize the adherence of the sample liquids thereto, thereby minimizing sample liquid carryover, and maximizing sample liquids analyses accuracy.
Patent CA-2083534-A1 (CA)
Title: Indolopyrrolocarbazole derivatives
Inventor: KOJIRI KATSUHISA
IPC: C07D207/04
Filed: 1992-11-23
Abstract: A compound represented by the following general formula and a pharmaceutically acceptable salt thereof (see formula I) wherein R1 and R2 each independently represent a hydro-gen atom, lower alkyl group, lower alkenyl group, lower alkynyl group, aryl group, aralkyl group or heterocyclic group (the alkyl group, lower alkenyl group, lower alkynyl group, aryl group, aralkyl group and heterocyclic group may each have 1 to 5 substituents selected from the group consisting of carboxyl groups, carbamoyl groups, sulfo groups, amino groups, cyano groups, mono-lower alkylamino groups, di-lower alkylamino groups, hydroxyl groups and halogen atoms), or a group of the formula -Y-R3, and therein Y represents a carbonyl group, thio-carbonyl group or sulfonyl group, and R3 represents a hydrogen atom, lower alkyl group, cycloalkyl group, cycloalkylalkyl group, aryl group, aralkyl group, lower alkoxy group, hydrazino group, amino group, arylamino group, carbamoyl group or heterocyclic group (the lower alkyl group, cycloalkyl group, cycloalkylalkyl group, aryl group, aralkyl group and heterocyclic group may each have 1 to 4 substituents selected from the group consisting of halogen atoms, optionally protected hydroxyl groups, amino groups, carboxyl groups, carbamoyl groups, cyano groups, allyl groups and lower alkoxycarbonyl groups, and the amino group and carbamoyl group may each be mono- or di-substituted by lower alkyl group(s) optionally substi-tuted by substituent(s) selected from the group consist-ing of halogen atoms, hydroxyl groups, amino groups, carboxyl groups, carbamoyl groups and lower alkoxycar-bonyl groups); or R1 and R2 combine to represent a lower alkyli-dene group (the lower alkylidene group may have 1 to 4 substituents selected from the group consisting of amino groups, mono-lower alkylamino groups, di-lower alkylamino groups, hydroxyl groups, carboxyl groups and sulfonyl groups); or R1 and R2 combine together with the nitrogen atom to which they bind to form a heterocyclic group (the heterocyclic group may have on the ring lower alkyl group(s) optionally substituted by group(s) selected from the group consisting of amino groups, hydroxyl groups, carboxyl groups and sulfo group), G represents a pentose group or hexose group, and X1 and X2 each independently represent a hydro-gen atom, halogen atom, amino group, mono-lower alkyl-amino group, di-lower alkylamino group, hydroxyl group, lower alkoxy group, aralkoxy group, carboxyl group, lower alkoxycarbonyl group or lower alkyl group.      This compound has an excellent antitumor effect.
Patent CA-2086530-A1 (CA)
Title: Support column
Inventor: MERZ VOLKER
IPC: E21D15/16
Filed: 1992-05-04
Abstract: Abstract Support  column  for underground  mining  and  tunnel construction, composed of a load-bearing outer shell and a core of a substance which is to be introduced in the flowable state and is capable of hardening.  The upper column component can be slid out of the lower column component and is secured against being slid into the lower column component by a ring-shaped spring element.   Active clamping forces can be introduced by means of clamping devices which can be mounted on the outside.
Patent CA-2087454-A1 (CA)
Inventor: CAPUANO FEDERICO
IPC: H01B1/12
Filed: 1993-01-18
Abstract: COMPOSITE POLYMERIC ELECTROLYTE, IN PARTICULAR FOR USE IN LIGHT-WEIGHT ELECTROCHEMICAL ACCUMULATORS            Abstract Composite, ternary, polymeric system formed by intimately mixing a polymeric compund, a metal salt, and a ceramic additive acting both as agent promoting the transport features (conductivity and ion mobility) and as stabilizer of the chemical characteristics (compatibility with the electrode materials) of the polymeric electrolyte.
Patent CA-2090379-A1 (CA)
Title: Communication interface circuit
Inventor: SCHLESINGER BENJAMIN
IPC: H04M1/738
Filed: 1993-02-25
Abstract: Cas 928 RM/sp COMMUNICATION INTERFACE CIRCUIT     ABSTRACT OF THE DISCLOSURE      The invention relates to an interface circuit (5) for use with a communication signal generator and two signal lines  (4a, 4b)  for the transmission of a communication signal thereon, said communication signal having an AC and a DC component, said interface circuit (5) including a DC component setting means (7) for setting the relationship between the voltage and the current of said DC component. The interrface circuit (5) is characterised in that said DC component setting means (7) comprises a current source (9)  connectable between said signal lines  (4a,  4b)  for supplying said DC component with a constant DC current, said current  source  (9)  being responsive to said DC component voltage such that it is operatable only when said DC component voltage exceeds a predetermined value.     The interface circuit  (5) may be used to adapt a telephone  apparatus  to  the  communications  signal requirements of a particular country.
Patent CA-2090615-A1 (CA)
Title: Performance characteristics stabilization in a radial compressor
Inventor: FORSTER ARNO
IPC: F04D29/42
Filed: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE      As a device for stabilizing the performance characteristics, a radial compressor comprises a circulation chamber (31) which makes pressure equalization between the impeller and the intake region possible.  The intake region has an intake ring (10) which makes it possible to influence the flow in the intake region so that the performance characteristics be stabilized without substantial losses.  The compressor may be adapted to customer's requirements by changing the intake ring.
Patent CA-2094129-A1 (CA)
Title: Process and installation for the combined generation of electrical and mechanical energy
Inventor: ANKERSMIT JAN HENDRIK
IPC: H01M8/0612
Filed: 1991-09-30
Abstract: Abstract:      The invention relates to a process for the combined generation of electrical and mechanical energy from the oxidation of fuel, wherein a hydrogen-containing gas is generated by endothermic reaction of hydrocarbon compounds, a portion of the hydrogen-containing gas is burned for generating a combustion gas, an oxygen-containing gas is compressed and introduced into the combustion stage, and the energy is generated by expanding the hot combustion gas in at least one gas turbine.  Further, the expanded combustion gas is used for indirect heating of the endothermic reaction.  According to the invention, at least a part of the generated hydrogen-containing gas is to be guided as anode gas through a fuel cell system for generating electrical energy and the anode exhaust gas is used for generating the combustion gas.            Figure 1
Patent CA-2095615-A1 (CA)
Title: Polyazamacrocyclic compounds for complexation of metal ions
Inventor: SHERRY A DEAN
IPC: C07F9/6515
Filed: 1991-11-12
Abstract: The present invention relates to a new polyazamacrocyclic compound or a salt thereof and its uses. The compound has for-mula (I), where x is 2, 3 or a combination of p 2(s) and q 3(s) where p+q=y; y is 3 or4; R is (CH2)Z P(=0)(R1)(OR2); R1 is R3 or OR3 where R3 is alkyl, cycloalkyl or aryl; R2 is H, alkyl or a where R4 is alkyl, cycloalkyl or aryl; and z is 1 to 3. In one important embodiment, this compound may be complexed with a metal to be a polyazamacrocyclic compound-metal com-plex having formula (II), where r is 2 or 3; and Me is a metal ion. Such complexes are useful for enhancing a magnetic res-onance image of a subject.