baber/WOPTO huggingface dataset:
Patent CA-2016449-C (CA)
Inventor: HILLENIUS STEVEN J
IPC: H01L29/73
Filed: 1990-05-10
Granted: 1996-06-25
Abstract: Through the use of a specifically configured buried dielectric region, devices with strict design rules, e.g., design rules of 0.9 micrometers and less, are significantly improved. In particular, the recessed dielectric region, e.g., field oxide, separating device areas in an integrated circuit, either has a buried conducting shield surrounding the periphery of the oxide or has a configuration such that the upper surface of the dielectric is no more than 20 nm below the upper surface of the silicon forming the device active region. By insuring a suitable configuration, parasitic capacitance resulting in slower operation is considerably reduced while leakage currents are maintained at an acceptable level.
Patent CA-2026291-C (CA)
Title: Fixture for fastening a stripping, a blank separating or a similar tool
Inventor: YERLY MARCEL
IPC: B26D7/18
Filed: 1990-09-26
Granted: 1994-09-06
Abstract: The invention concerns a device for fastening a stripping, a blank separating or a similar tool, on the adjustable crossbars of a waste stripping or a blank separating station within a sheet processing machine.  The device includes a tie bar (6) provided with a headed end (13) and carrying a freely shifting support (4) for the tool parts (5, 26), a clamp (1) and a jaw (2), each of which provided, firstly, with a supporting surface (1a, 2a respectively) destined to enter into contact with a crossbar (3) of the stripping station, and, secondly, with the supporting surfaces (1e, 2e respectively) destined to enter into contact with one another.  The second end of the tie bar (6) carries tightening means (10) destined to push the various components against one another towards the headed end (13) of the tie bar (6) in such a way as to enable one of the following operations, ie fitting and dismantling, shifting or locking the various components among themselves and with regard to the crossbar (3).  The tightening means (10) include the three positions A, B and C each corresponding to one of the three operations.
Patent CA-2026358-C (CA)
Inventor: CHESTERFIELD MICHAEL P
IPC: A61L17/14
Filed: 1990-09-27
Granted: 1995-06-20
Abstract: A heat tipping method and apparatus for surgical sutures to facilitate inserting the sutures into the barrel ends of surgical needles.  The method comprises tensioning the suture, heating a portion of the suture to be heat tipped by blowing a current of hot air across the portion of the suture, and releasing the tension and cutting the portion of the suture to create heat tipped ends.  The apparatus comprises a cylindrical drum around which the suture is wound, a concave channel in the drum for delimiting a portion of the suture to be heated, and hot air blowers for heating the delimited portions of the suture to a heat tipping temperature.
Patent CA-2028511-C (CA)
Title: Sucralose sweetened chewing gum
Inventor: CHERUKURI SUBRAMAN RAO
IPC: A23G4/10
Filed: 1990-10-25
Granted: 1995-10-31
Abstract: A sucrose-sweetened chewing gum composition having a moisture content below about 2% by weight, wherein the sucrose is released from said composition at a rate of  15  to 50 sucrose equivalents within the initial 30 seconds of chewing.
Patent CA-2030818-C (CA)
Inventor: POPESCU ALINA
IPC: G06T7/60
Filed: 1990-11-26
Granted: 1993-12-14
Abstract: Abstract.  This  invention  develops  a  method  for  absolute quantitation in  computer  assisted  tomograph  systems.  This includes the definition of the dimension and the position of a tumour, as well as  the  evaluation  of  the  amount  of  drug delivered to a target volume and to surrounding tissues,  from the image.  The defined objectives can be achieved  using  the calibrated FWHM  (Full Width at Half Maximum)  values  of  the distribution of events versus distance in the tumour images to determine the dimension and the position of  the  tumour.  The activity  concentration   in   a   target   volume   and   the target - to - nontarget activity ratios can be  obtained  from the image using a new modified filter  in  the  reconstruction of the image and  the  calibration  of  the  system  for  this filter. The filter was tested on Positron Emission  Tomograph (PET)  images.    The  obtained  images   reflect  the   real distribution of activity used in a phantom. Using this filter, the colour scale of the image can  be  expressed  in  absolute units (µCi/ml) and the activity concentration can be evaluated in each pixel of the image or in each volume  element  of  the body.
Patent CA-2033880-C (CA)
Title: Billing system for telephone signaling network
Inventor: OLSEN STEVEN A
IPC: H04Q3/00
Filed: 1991-01-09
Granted: 1992-11-24
Abstract: BILLING SYSTEM FOR TELEPHONE      SIGNALING NETWORK Abstract of the Invention A billing system for use in a telephone signaling network. The network comprises offices through which telephone calls can be routed, each office beingowned by a telephone company that participates in the network. Each office includes a signaling point (SP) that includes means for formulating message signaling units (MSUs). An MSU may comprise a query requesting call data pertinent to a particular call, for example, for verifying the validity of a credit card number. The network also includes signal transfer points (STPs) for receiving and routing the MSUs, and a plurality of service control points (SCPs), each SCPbeing linked to one of the STPs. Each SCP comprises a database that includes call data provided by one or more of the participating telephone companies. The billing system of the invention includes means for capturing at least a portion of the MSUs received by one or more STPs. The billing system processes the MSUs to produce usage data that indicates service recipients and service providers. The service recipient is the telephone company that owns the SP that formulated the MSU, and the service provider is the telephone company that provided the call data for the MSU, or that transported the MSU. The usage data may then be used to produce invoice data for accurately assigning costs among the telephone companies.
Patent CA-2045012-C (CA)
Title: Detection of poor metabolizers of drugs
Inventor: MEYER URS A
IPC: C12Q1/68
Filed: 1991-06-19
Granted: 2005-10-18
Abstract: A method for the detection of poor metabolizers of drugs using PCR technology as described comprising a) optionally amplifying a gene coding for an enzyme known to be responsible for the metabolization of drugs, thereby separating it from possible closely related pseudogens, b) amplifying different allelic forms of the gene of step a) and c) detecting the product of step b). Primers for amplification of genes coding for drug metabolizing enzymes, especially genes coding for enzymes responsible for the debrisoquine or acetylation phenotype, are also disclosed.
Patent CA-2048675-C (CA)
Title: Fermi threshold field effect transistor
IPC: H01L29/78
Filed: 1990-03-01
Granted: 1999-02-16
Abstract: A field effect transistor (FET) operates in the enhancement mode without requiring inversion by setting the device's threshold voltage to twice the Fermi potential of the semiconductor material. The FET, referred to as a Fermi Threshold FET or Fermi-FET, has a threshold voltage which is independent of oxide thickness, channel length, drain voltage and substrate doping.  The vertical electric field in the channel becomes zero, thereby maximizing carrier mobility, and minimizing hot electron effects.  A high speed device, substantially independent of device dimensions is thereby provided, which may be manufactured using relaxed groundrules, to provide low cost, high yield devices.          Temperature dependence of threshold voltage may also be eliminated by providing a semiconductor gate contact which neutralizes the effect of substrate contact potential.  Source and drain subdiffusion regions may be provided to simultaneously maximize the punch-through and impact ionization voltages of the devices, so that short channel devices do not require scaled-down power supply voltages.  Multi gate devices may be provided.  An accelerator gate, adjacent the drain, may further improve performance.          The Fermi-FET criteria may be maintained, while allowing for a deep channel by providing a substrate contact for the Fermi-FET and applying a substrate bias to this contact.  Substrate enhancement pocket regions adjacent the source and drain regions may be provided to produce a continuous depletion region under the source, drain and channel regions to thereby minimize punch-through effects.
Patent CA-2049080-C (CA)
Title: Assembly for flow regulation and for opening a flow-through conduit for liquids under pressure
Inventor: RAAB ALFRED
IPC: B67D1/14
Filed: 1991-08-13
Granted: 1996-07-09
Abstract: An assembly for regulating the flow of liquid includes a housing made of a first, second and third housing part. The housing parts being placed immediately following one another in the flow direction.  The second of three housing parts constitutes a component of a discharge shutoff valve and a component of a flow regulating valve into which a flow-through conduit is integrated between the discharge shutoff valve and the flow regulating valve immediately following it in the flow direction.   The assembly includes no freely moving parts and is distinguished by a compact construction.
Patent CA-2050692-C (CA)
Title: Fair access of multi-priority traffic to distributed-queue dual-bus networks
Inventor: HAHNE ELLEN LOUISE
IPC: H04L12/28
Filed: 1991-09-05
Granted: 1998-12-08
Abstract: Bandwidth balancing is accomplished in Distributed-Queue Dual-Bus (DQDB) networks that handle multi-priority traffic by causing each node to throttle its own rate of transmission in accordance with the priority of the data that the node transmits. In accordance with one approach, each node limits its throughput to the product of a bandwidth balancing factor (which is a fraction that varries according to the priority level of data) and the unused bus capacity. When parcels of different priorities are received within each node, the parcels are processed in priority order. In accordance with another approach, all active parcels within a node are handled concurrently and receive some bandwidth. The throughput of each parcel in a node is limited to the product of the bandwidth balancing factor and the unused bus capacity. In accordance with still another approach, each traffic parcel limits its throughput to the product of the bandwidth balancing factor and the bus capacity unused by parcels of equal or higher priority. This scheme allocates bandwidth first to the higher-priority parcels, then allocates the leftovers to the lower-priority parcels. Lower-priority parcels have no effect on the steady-state throughputs of higher-priority parcels.
Patent CA-2051204-C (CA)
Title: Position and function input system for a large area display
Inventor: ELROD SCOTT A
IPC: G06F3/038
Filed: 1991-09-12
Granted: 1999-04-20
Abstract: An input device for simultaneously entering position and function information into an electronic system having a viewing surface upon which is displayed information generated by the electronic system. A light pen is provided for projecting a light spot onto the viewing surface for indicating the position of a location marker thereon and for indicating a function to be performed. The optical output of the light pen is modified to represent the selected function. A sensor receives the light spot and, in conjunction with discrimination electronics, determines the location of the centroid of the light spot relative to the viewing surface, and determines the function to be performed.
Patent CA-2051325-C (CA)
Inventor: WATANABE SHIGEKI
IPC: H04B10/572
Filed: 1991-09-13
Granted: 1999-06-29
Abstract: At a  transmitting end,  transmission signals corresponding to more than one channel are allocated different microwave frequencies and carriers of the microwave frequencies are modulated with the transmission signals in modulators.   A filter is placed in the preceding or succeeding stage of a respective modulator to band-limit a corresponding transmission signal before or after modulation.   The band-limited and modulated transmission signals are combined to produce a microwave frequency-division multiplexed signal.  The multiplexed signal modulates an optical frequency modulator to produce an optical modulated signal. The optical modulated signal is transmitted to the receiving end.   At the receiving end, the optical signal transmitted from the transmitting end is detected and converted to an electrical signal.   The channel components are extracted from the electrical signal by bandpass filters and then demodulated.
Patent CA-2052881-C (CA)
Inventor: OVSHINSKY STANFORD R
IPC: G11C11/56
Filed: 1991-10-07
Granted: 2001-07-17
Abstract: A parallel distributed processor comprises matrices of unit cells arranged in a stacked configuration.      Each unit cell includes a chalcogenide body which may be set and reset to a plurality of values of a given physical property. Interconnections between the unit cells are established via the chalcogenide materials and the pattern and strength of the interconnections is determined by the set values of the chalcogenide. The processor is readily adapted to the construction of neural network computing systems.
Patent CA-2054994-C (CA)
Title: Portable back support
Inventor: JOHNSON DAVID G
IPC: A61F5/01
Filed: 1991-11-05
Granted: 1998-11-03
Abstract: A portable back support comprises a base plate and a cushion layer attached to the base plate.  The cushion layer has an upper portion and a lower portion, the lower portion having a pair of laterally spaced extremities.  The base plate has an arcuate shape in transverse section thereby enabling the extremities to provide lateral support.  The lower portion further includes an inflatable bladder enabling the contour of the cushion to be varied.  The bladder is movably connected to the base plate.  The rear surface of the bladder is supported by the base plate.  The vertical position of the bladder can be adjusted by a suitable device such as two straps connected to the bladder.
Patent CA-2055558-C (CA)
Title: Ball valve for fluids with seatings comprising laminated rings
Inventor: BONETTI GIULIO
IPC: F16K5/06
Filed: 1991-11-14
Granted: 2003-02-04
Abstract: Ball valve for fluids, with sealing seatings comprising rings, disposed between the spherical surface of the valve and the interior of the valve body, composed of rings formed of superimposed layers of plates of pure graphite alternating with plates of stainless steel sheet, the whole being contained in a casing of metal sheet covering the outer sides of the seating, except that in contact with the spherical sealing surface.
Patent CA-2057588-C (CA)
Title: A process to obtain zeolite 4a starting from bauxite
Inventor: ARTIGAL PUERTO RAMON
IPC: C01B39/14
Filed: 1991-12-13
Granted: 2000-03-28
Abstract: The invention purpose is a process to obtain gel to elaborate Zeolite 4A, to be used in detergents due to its capacity for calcium absortion; the process lies on the obtention of an alkaline aluminium solution starting from bauxite provided by tank 3 which is attacked in digestor 1 with sodium hydroxide provided by tank 4, with a concentration of 11% minimum, with a filtration of the reacting mass and a purification 13 before the gel formation step in whose reactor 14 is also introduced an alkaline solution of SiO2 to obtain by agitation and temperature a gel which is treated in a crystallizer 15, cooling and concentrating the crystalline mass in 16, filtered in 17, and passed to a dryer 20 from where the product Zeolite 4A passes to storage 21. Bauxite residues are attacked with boiling sulphuric acid in reactor 9, filtering the resulting mass in 11 to recycle the silica and to recover the metal sulphates in solution for using them in water treatments.
Patent CA-2058771-C (CA)
Title: Method of suppressing appetite by administration of tetrahydro-beta-carboline derivatives
Inventor: BARCHAS JACK D
IPC: A61K31/44
Filed: 1990-06-07
Granted: 1995-12-26
Abstract: Compounds  of  formula  I  are  useful  for  suppressing appetite, and for altering macronutrient preferences,   (I) wherein R2,  R3,  R6,  R7,  and R9 are chosen such that the predicted activity,  measured in terms of IC50, as calculated by the quantitative structure activity relationship 1n(1/IC50) = 0.058P2 + 0.908(? + .sigma.I) - 2.647 is greater than about -2.5, where P is the octanol/water partition coefficient as deter-mined using the fragment method, .sigma. is the sum of the Hammet parameters for the R6 and R7 substituents, .sigma.I is the sum of the Inductive parameters for the R3 and R2 substituents.
Patent CA-2067922-C (CA)
Title: Method for forming element-free spaces in slide fastener chain
Inventor: MATSUMOTO MASAO
IPC: A44B19/58
Filed: 1992-05-01
Granted: 1995-10-03
Abstract: A method for forming element-free space sections in a slide fastener chain is provided that coupling elements can be efficiently removed by a small force without damaging fastener tapes The method for forming element-free space sections in the slide fastener chain comprises the steps of, cutting heads of interengaged discrete coupling elements of space-forming sections at one leg of forked legs of the individual coupling element, pushing up the heads of the coupling elements in the direction orthogonal to the fastener tape faces from the cutting side, and gripping the remaining cut legs by grippers to be drawn-out and removed in the direction orthogonal to the fastener tape faces.
Patent CA-2068519-C (CA)
Inventor: LASH GLEN R
IPC: A61F13/15
Filed: 1991-01-14
Granted: 1997-12-02
Abstract: Structures absorbantes (100) comprenant une couche d'acquisition-distribution d'un fluide (10) thermoliée comprenant d'environ 10 % à environ 50 % d'un liant thermoplastique et d'environ 50 % à environ 90 % de fibres cellulosiques raidies chimiquement et, sous ladite couche d'acquisition-distribution du fluide, une couche de rétention de fluide (106) comprenant au moins environ 15 % en poids d'une matière superabsorbante. La couche d'acquisition-distribution du fluide thermoliée est un réseau comprenant les fibres cellulosiques raidies chimiquement et le liant thermoplastique; on fabrique cette couche en mélangeant les fibres durcies avec le liant thermoplastique à l'état fibreux, en formant le réseau, en chauffant le réseau pour faire fondre la matière fibreuse thermoplastique et en refroidissant le réseau.
Patent CA-2076039-C (CA)
Title: Process and device for beat recovery
Inventor: VOLEJNIK WILHELM
IPC: H04L7/033
Filed: 1990-12-04
Granted: 2001-01-30
Abstract: In the bytewise stopping of synchronous signals in the synchronous-digital-multiplex hierarchy, fitter with phase jumps of 8 U~ occurs which renders beat recovery difficult. Means are therefore sought for converting fitter into drift. This is achieved with a phase regulating loop (PLL) in which a phase jump compensator (7) is inserted between the output (4) of a phase discriminator (3) and the input (5) of an oscillator (b). This converts an input correction value (14) into an output correction value (Ka). If there is no stop, the input correction value (K ~) leaves the phase jump compensator (7) unchanged (a1, b1). If a positive stop is made (+St), the pulses of the input correction value (K~) thus lengthened are first shortened to the normal duration (x1) and then lengthened stepwise (c1, d1) to the original duration. On negative stopping (-St) the thus shortened pulses of the input correction value (K~) are first lengthened to the normal duration and then reshortened step-wise (e1, f1).
Patent CA-2076765-C (CA)
Title: Esv readings of toner test patches for adjusting ird readings of developed test patches
Inventor: SCHEUER MARK A
IPC: G03G15/08
Filed: 1992-08-25
Granted: 1999-08-31
Abstract: In a single pass tri-level imaging apparatus, a pair of Electrostatic Voltmeters (ESV) are utilized to monitor various control patch voltages to allow for feedback control of Infra-Red Densitometer (IRD) readings.      The ESV readings are used to adjust the IRD readings of each toner patch. For the black toner patch, readings of an ESV positioned between two developer housing structures are used to monitor the patch voltage. If the voltage is above target (high development field) the IRD reading is increased by an amount proportional to the voltage error. For the color toner patch, readings using an ESV positioned upstream of the developer housing structures and the dark decay projection to the color housing are used to make a similar correction to the color toner patch IRD readings (but opposite in sign because) for color, a lower voltage results in a higher development field).
Patent CA-2077454-C (CA)
Title: Azeotropic composition of 1-chloro-1, 2,2,2-tetrafluoroethane and dimethyl ether
Inventor: BARTLETT PHILIP L
IPC: C08J9/14
Filed: 1991-02-05
Granted: 2002-07-16
Abstract: The azeotrope of 1-chloro-1,2,2,2-tetrafluoroethane and dimethyl ether is useful as a refrigerant, aerosol propellant and po-lymer foam blowing agent.
Patent CA-2079260-C (CA)
Inventor: FARDEAU MICHEL
IPC: H04B17/00
Filed: 1992-09-28
Granted: 2004-02-24
Abstract: A method and apparatus for automatically identifying a program broadcast by a radio station or by a television channel, or recorded on a medium, by adding an inaudible encoded message to the sound signal of the program, the message identifying the broadcasting channel or station, the program, and/or the exact date. In one embodiment the sound signal is transmitted via an analog-to-digital converter to a data processor enabling frequency components to be split up, enabling the energy in some of the frequency components to be altered in a predetermined manner to form an encoded identification message, and with the output from the data processor being connected via a digital-to-analog converter to an audio output for broadcasting or recording the sound signal. In another embodiment, an analog bandpass filter is employed to separate a band of frequencies from the sound signal so that energy in the separated band may be thus altered to encode the sound signal. The invention is particularly applicable to measuring the audiences of programs that are broadcast by radio or television, or that are recorded.
Patent CA-2079628-C (CA)
Title: Process of cleaning metal surfaces
Inventor: WITTEL KLAUS
IPC: C23G1/24
Filed: 1992-10-01
Granted: 2001-12-11
Abstract: In a process of cleaning metal surfaces with aqueous alkaline cleaning solutions, which contain sili-cates and surfactants and are recycled after ultrafil-tration, a solution is employed which contains silicate only as a sodium silicate and/or potassium silicate of the general formula Na2 0.2SiO2.xH2O and/or K2 0.2SiO2.xH2O.      The cleaning solution is preferably adjusted to a pH value between 7 and 12 and to a concentration (ex-pressed as SiO2) of 0.1 to 20, particularly 0.5 to 10 g, silicate per liter.