baber/WOPTO huggingface dataset:
Patent CA-2084034-A1 (CA)
Inventor: USHIROKAWA AKIHISA
IPC: H04L1/00
Filed: 1992-11-27
Abstract: An  adaptive  receiver  apparatus  comprises demodulating means for demodulating a reception signal, adaptive equalization means for equalizing a demodulated output to output an equalized signal, an difference signal upon equalization and a channel impulse response estimate estimated upon equalization, noise level detecting means for detecting a noise level based on the difference signal upon equalization,  channel  impulse response variation magnitude  detecting  means  for  detecting  a  variation magnitude of the channel impulse response estimate at a predetermined interval, and coefficient control means for adjusting a coefficient determining a tracking property of an adaptive algorithm of the adaptive equalization means depending upon the variation magnitude of the channel impulse response estimate detected by the channel impulse response variation magnitude detecting means and the noise level detected by the noise level detecting means.
Patent CA-2084915-A1 (CA)
Title: Pleated screen device based on wire tension system
Inventor: HOSHIYAMA YASUO
IPC: E06B9/52
Filed: 1992-12-09
Abstract: A sliding bar (5) slidable in an opening-closing direction of a pleated screen device has a plurality of direction changing means (6a), (6b), (7a) and (7b) provided therein.  A wire member has at least a secured end and is composed of two wire members (15) and (16), for example.  These two wire members (15) and (16) are stretched between a pair of frame members (3) and (4), turned back by said a plurality of direction changing means provided in said sliding bar, cross over each other in the sliding bar, and each is inserted into each of frame members (1) and (2) disposed in said opening-closing direction of the pleated screen device.  A pleated screen member (13) having a plurality of pleats (12) is foldably and spreadably provided between said sliding bar (5) and said frame member (3) opposed to the sliding bar.  The pleated screen member is supported in the opening-closing direction of the pleated screen device by said wire members (15) and (16).
Patent CA-2085039-A1 (CA)
Title: Piezo valve
Inventor: FRISCH HERBERT
IPC: F16K31/00
Filed: 1992-12-10
Abstract: In order to balance out the effects of the electrical and mechanical relaxation of a piezo-electric bending element which has a control area that moves in response to an applied control voltage against an elastically applied counterforce, the counterforce is applied by way of a separate external loading system. In addition, the bending element can be pre-tensioned elastically against the action of the counterforce by means of a clamped end.
Patent CA-2085385-A1 (CA)
Inventor: NAMIKI HIDEO
IPC: H02J7/00
Filed: 1992-12-15
Abstract: A charging device capable of charging a portable telephone in the same period of time with no regard to the ON/OFF state of a power source incorporated in the telephone.  When the connection of the telephone to the charging device is detected, whether or not a power source incorporated in the telephone is in an ON state is determined.  A charging current to the telephone is changed depending on the ON/OFF state of the power source of the telephone.
Patent CA-2089506-A1 (CA)
Title: Menyonga stroller
Inventor: MENYONGA VICTOR T
IPC: B62B9/02
Filed: 1993-11-12
Abstract: ABSTRACT    Strollers used  for transporting children have  two back and front wheels  that enable the  stroller to be  able to role  on a flat  surface when  pushed or  pulled.  The MENYONGA  Stroller in addition  to  these has  the  MENYONGA  attachment  that  can  be operated  manually  to enable  the stroller  to  be able  to role smoothly up or down a stair case.
Patent CA-2091367-A1 (CA)
Inventor: BACON RAYMOND
IPC: G01F11/00
Filed: 1991-11-29
Abstract: A metered dose inhaler for use with a pressurised aerosol container which is preferably breath-actuated.  A preload (80) is applied to the internal aerosol valve by an amount sufficient to result in a dose release, but this is prevented by the application of a pneumatic resisting force (130).  The inhaler comprises a release device (110) which, upon actuation, releases the resisting force and allows the preload to actuate the aerosol valve (135).  A metered dose of medicament is then released for inhalation by the patient.
Patent CA-2092783-A1 (CA)
Title: Cyclic carbonate compounds, method for producing the same and positive photoresist composition using the same
Inventor: UEDA YUJI
IPC: G03F7/039
Filed: 1993-03-26
Abstract: ABSTRACT OF THE DISCLOSURE          This invention provides a process for produc-ing a cyclic carbonate compound represented by the following formula (5):     (5)   or the like which is useful as a dissolution inhibitor for use in a chemically amplified positive photoresist, as well as a positive photoresist composition comprising said cyclic carbonate compound, an alkali-soluble resin and a photo-induced acid precursor.  This composition gives a positive photoresist excellent in performances such as resolution, profile, sensitivity, etc.
Patent CA-2095064-A1 (CA)
Title: Sealing mechanism for surgical trocar
Inventor: FAILLA STEPHEN J
IPC: A61M5/158
Filed: 1993-04-28
Abstract: ABSTRACT       A trocar  seal  is provided which has a  plurality  of gasketing mechanisms placed across its seal housing inner diameter.  These gasketing mechanisms are positioned in angular relationship to one another so that they cover the entire seal  housing  opening;  however,  the  gasketing mechanisms are resilient and act as both a seal and as a valving mechanism for use within the trocar.  They allow surgical instruments of varying dimensions to be placed within the cannula, either singly or simultaneously.
Patent CA-2100215-A1 (CA)
Inventor: TODD PATRICIA R
IPC: C10N10/06
Filed: 1993-07-09
Abstract: Improved grease compositions comprise a major amount of an oil based simple metal soap thickened base grease, an overbased metal salt of an organic acid, at least one sulfur and phosphorus containing composition and a hydrocarbyl phosphite, together in amounts sufficient to increase the dropping point of the base grease, as measured by ASTM Procedure D-2265 by at least 50°C, the phosphorus and sulfur compound being described in detail herein.
Patent CA-2102562-A1 (CA)
Inventor: MARRS GEVAN R
IPC: B65G65/40
Filed: 1993-11-05
Abstract: The system includes a variable speed motor (13) which controls the operation of a disk screen (14) which is part of a gyratory screen/disk screening system for wood chips and the like. Wood chips are fed at a variable rate to a storage bin (34), which includes a level sensor (36). The level sensor (36) controls the operation of a star feeder (42) to maintain the level of input in the bin (34) between two set points, thereby providing a varying amount of input material to the upstream end of gyratory screen (12). The speed of the motor (46) driving the star feeder valve (42) is used to develop a control signal for the disk screen motor (13), to ensure a uniform flow rate off the disk screen.
Patent CA-2102950-A1 (CA)
Inventor: MCGAFFIGAN THOMAS H
IPC: H05B6/36
Filed: 1993-11-12
Abstract: Solenoid coils are provided that produce relatively low irradiation of electromagnetic fields with intense fields internally thereof for purposes of heating a metallic element, preferably a ferromagnetic element having a Curie temperature selected for the purpose for which the coil structure is to be employed, the coil structure in one embodiment comprising two coaxial coils of substantially equal diameter interconnected to produce in response to an alternating current being applied thereto out of phase magnetic fields that do not substantially interfere with one another as a result of the spacing between the coils.  In a second embodiment the two coils are located between two additional coils that buck axial fields thereby together with fall off of the fields as the cube of the distance from the main coils provide a structure with low external radiation.          The method of forming the first coil structure includes winding a pancake coil in the form of a spiral, rotating out of the plane of the coil the innermost leg of the spiral to provide the desired spacing of the coils, forming the pancake into a cylindrical shape with the cross members of the pancake being laid one over the other to provide cancellation of the fields produced by these members.
Patent CA-2104753-A1 (CA)
Title: Bandwidth Allocation, Transmission Scheduling, and Congestion Avoidance in Broadband ATM Networks
Inventor: SRIRAM KOTIKALAPUDI
IPC: H04N21/434
Filed: 1993-08-24
Abstract: A wide variety of call traffic is effectively integrated in a single broadband communications network. Calls having widely differing bandwidth requirements and sensitivities to delay are handled by the network with efficient, effective, and fair bandwidth allocation and transmission scheduling. This is accomplished by classifying each call in accordance with certain signal characteristics, such as required bandwidth and sensitivity to delay. Each call class is directed to a separate queuing circuit. Some calls in certain classes, such as those associated with high-bandwidth constant bit rate services, are each directed to their own individual queuing circuits. Other calls within a class are statistically multiplexed into a single queuing circuit for that class. A multiplexing circuit operates in accordance with a dynamic time slice scheme which involves defining a service cycle time period during which the multiplexer withdraws a predetermined number of information packets from each of a plurality of queuing circuits containing information packets and places those predetermined numbers of packets onto an output link. The multiplexer breaks up the cycle time period into a plurality of time slices, each of which determines how many information packets are transmitted from each queuing circuit during the cycle time period. Efficient resource usage and congestion avoidance are further achieved by using one of a number of alternative scheduling techniques for delay insensitivetraffic.
Patent CA-2105668-A1 (CA)
Inventor: BROOKE KENNETH R
IPC: G03B21/00
Filed: 1993-02-24
Abstract: TUNNEL VISION VIDEO DISPLAY SYSTEM                        ABSTRACT A video display system that provides a low cost means by which a high volume of participants may be processed through an interactive video system in an rapidmanner. The system is comprised of a darkened serpentine tunnel constructed of flat faceted rear projectors screens, formed as a series of multi-screen sections. Video imagery is projected onto the screens from video projectors using reflecting mirrors disposed on the back side of the screens. The screen sections are mated together to form the complete tunnel. Participants traverse through the darkened tunnel riding in vehicles that are guided in a manner analogous to automobiles processed through a car wash or a factory assembly line. As each vehicle progresses down the tunnel, theprojection screens currently surrounding the vehicle are illuminated, together with the preceding and succeeding screen sections. As the vehicle transitions from the current section to the forward section, the rearward section is extinguished and the next forward section is illuminated. The image intensity of the forward section is gradually increased as the vehicle approaches, by virtue of the gain characteristics of the projec-don screens, thus making the transition nearly undetectable. The video display system thus provides the means by which an operator of an amusement park ride or training system may quickly and efficiently process a large number of participants through them. The video display system allows an interactive video system designer to break up participant batch size into much smaller groups, thus minimizing intergroup waiting time and greatly increasing throughput.
Patent CA-2106883-A1 (CA)
Inventor: ERWIN MICHAEL S
IPC: B66C13/40
Filed: 1993-09-24
Abstract: A tubular warning sleeve for surrounding a pendant cord above a control station of an apparatus having a pendant control, the warning sleeve comprising a sheet of flexible material having opposite ends, the sheet including an outer surface having thereon warning information, the sheet being rolled up so that the ends overlap, and the ends being secured together by fasteners to form the sleeve, each of the ends of the sheet being provided with apertures for the fasteners, one of the ends of the sheet being provided with at least two sets of apertures for the fasteners such that the diameter of the sleeve is adjustable.
Patent CA-2107373-A1 (CA)
Title: Self-propelling transport equipment for persons
Inventor: MUELLER WOLFGANG
IPC: B66B9/02
Filed: 1993-09-30
Abstract: SUMMARY   Abstract Vertically and  horizontally self-propelling transport equipment for persons, with friction wheels (9) which are mounted and driven at the  equipment  and which are pressed against the running bed by a passive  force,  which  produces  the  necessary  friction  and  is influenced by cage and load weight,  and additionally by an active regulated force by means  of  setting elements  (11).   The friction wheels (9) with friction wheel  drives (8)  are mounted underneath a lifting carriage (2) at fulcra (6) by means of guide arms (7), and the necessary contact pressure for a low-slip drive is produced at a defined angle to the horizontal of the straight line between fulcrum (6) and contact point (x) of the friction wheels (9) in guide grooves or on guide rails  (12)  in the shaft (5).   There are, for example, four friction wheel drives provided below a cableless cage (1).  The cage (1) is carried by the lifting carriage (2) by way of vibration dampers (2).  A safety device according to regulations is attached to the  lifting  carriage  (2).    For  heavier  cages  (1)  an  additional carriage is provided  as pulling carriage  (15) with a guide device (15.1).
Patent CA-2107543-A1 (CA)
Title: Perforated Plate Fluid Distributor and Its Associated Fixed Bed Vessel
Inventor: NOWOBILSKI JEFFERT J
IPC: B01D53/04
Filed: 1993-10-01
Abstract: The present invention relates, in general, to apparatus for providing uniform fluid flow in vessels having packing materials or particulates and, in particular, to apparatus for providing uniform gas flow in pressure swing adsorbent vessels.
Patent CA-2108668-A1 (CA)
Title: Condensateur de puissance
Inventor: GOTHELF NATAN
IPC: H01G2/14
Filed: 1992-02-28
Abstract: Condensateur de puissance (30, 40), composé d'une multiplicité de rangées (36) d'éléments de condensateurs (33, 43) connectées en parallèle, chaque rangée comprenant une multiplicité d'éléments de condensateurs connectés en série, lesdites rangées parallèles étant interconnectées au niveau de leur point terminal uniquement, et lesdits éléments de condensateurs (33, 43) étant conçus de telle façon qu'en cas de défaillance les électrodes sont soudées ensemble pour effectuer un court-circuit solide de l'élément de condensateur défectueux.
Patent CA-2123540-A1 (CA)
Title: Making condensed sweetened dairy concentrates, and products made
Inventor: GALLOWAY TIMOTHY E
IPC: A23C13/14
Filed: 1994-05-13
Abstract: ABSTRACT OF THE DISCLOSURE          This invention provides methods of making shelf  stable condensed sweetened dairy concentrates that provide a method of preserving  fat  while  retaining  the  flavor  and  texture characteristics of fresh dairy products.  The concentrates are made by mixing together fat and non fat milk solids including a fresh dairy component, and sugar, to make a blend, evaporating the blend to at least 70% total solids,  and recovering the product as the dairy concentrate.   The concentrates so made generally comprise about 15% to about 37% fat, 4% to about 17% non  fat  milk  solids, and  enough  sugar  that  there  is  no deleterious affect related to growth of pathogenic organisms based on activity internal to the concentrate.  Sandiness due to lactose crystallization at above 7% non fat milk solids can be avoided by seeding the evaporated blend with seed crystals.  The concentrate can be used in the food industry in a variety of applications.   For example,  in the frozen dairy desert mix application, the mix is made from the concentrate by adding sugar and non fat milk solids as desired, but typically all the fat is provided by the concentrate, such that no other fat is added in making the mix, which is the formula ultimately consumed by a consumer.
Patent CA-2123699-A1 (CA)
Inventor: KOMAI TAKASHI
IPC: B01J20/24
Filed: 1993-09-22
Abstract: This invention provides a selective cellular fibronectin (cFN) adsorbent utilizing a nonwoven cellulose sulfate fabric and a method for fractional purification of FN which comprises contacting an FN matter containing both plasma fibronectin (pFN) and cellular fibronectin (cFN) with the nonwoven cellulose sulfate fabric to separate pFN and cFN from each other. By the fractional purification method of the invention, cFN and pFN can be fractionated in an expedient manner and with high efficiency and both pFN and cFN can be recovered in high purity and good yield.
Patent CA-2123965-A1 (CA)
Title: Method of manufacturing etched wood products
Inventor: BALENTINE LINDA
IPC: B44C1/22
Filed: 1994-05-19
Abstract: ABSTRACT OF THE DISCLOSURE      Screening techniques are used to form a patterned mask on a surface of a wood article, and particle blasting is used to transfer the pattern of the mask to the wood article.  A screen on procedure that employs a 50-80 mesh material on which a reverse image pattern of 200 microns or thicker of capillary film allows a high definition pattern of masking material to be applied in one pass.  Disruption of the mask from moisture emanating from the wood article is prevented by either painting the surface of the wood article prior to screening on the masking material or by including a water scavenging compound with the masking material.  If paint is to be employed as a moisture barrier, the paint must be able to withstand curing temperatures for the masking material.  Spherical glass beads are preferably used for particle blasting since they leave a better finish for the pattern transferred to the wood article and do not adversely degrade the wood fibers.  Woods, such as Western Red Cedar, Ponderosa Pine, Fir, and Redwood, can be easily patterned by the particle blasting and provide enhanced wood grain definition.
Patent CA-2124033-A1 (CA)
Title: Driveshaft with Closable Maintenance Aperture in Protective Tubes
Inventor: GROSSE-ENTRUP HUBERT
IPC: A01B71/08
Filed: 1994-05-20
Abstract: A driveshaft for driving agricultural machinery has two profiled tubes which are movable one inside the other and serve to transmit torque. Two protective tubes (5, 6) are provided which are also axially movable one inside the other. To be able to lubricate the profiled tubes, a maintenance aperture is provided which, at a certain driveshaft length, is obtained as a result of the overlapping position of two apertures (11, 12) in the protective tubes (5, 6). However, when not used, the aperture (11) in the outer protective tube (6) is covered by a closing sleeve (9). When extending the driveshaft after moving the closing sleeve (9), for the purpose of providing access to the apertures, the closing sleeve (9) is automatically returned into the closed position by a cam (13). This design measure results in a higher degree of safety by ensuring that the apertures are always closed when the driveshaft is in operation.
Patent CA-2124367-A1 (CA)
Title: Fast tuned, injection locked, synthesized oscillator
Inventor: COHEN LEONARD D
IPC: H03L7/24
Filed: 1994-05-26
Abstract: ABSTRACT OF THE DISCLOSURE     A fast tuned, injection locked, synthesized oscillator includes a direct digital synthesizer for generating a digitally synthesized signal at frequency f0, an analog oscillator circuit for generating an analog signal at frequency f1 and a filter coupled to the direct digital synthesizer for filtering the digitally synthesized signal to provide a signal at frequency Nf0.          N may be an integer from 1 to 10.  Also included is a coupler to couple the filtered, digitally synthesized signal into the analog oscillator to lock the frequency of the analog output signal to the frequency of the digitally synthesized signal such that f1 = Nf0.  The coupler also electrically couples the output signal from the analog oscillator circuit to a second filter to filter the analog signal.  An amplifier electrically coupled to the second filter amplifies the analog signal.       The direct digital synthesizer may be used to high-order, sub-harmonically injection lock the analog oscillator circuit thereby providing an output signal reflecting a frequency up-conversion in order to broaden the frequency range of the synthesized analog output signal beyond that of the direct digital synthesizer.
Patent CA-2124854-A1 (CA)
Title: Surgical instrument
Inventor: HART RICKEY D
IPC: A61B17/28
Filed: 1993-10-07
Abstract: An improved surgical tool of the type comprising a handle (2) having a movable tool-operating handle member (10) and a tool head (6) having a first and second tissue engaging members movable between open and closed positions coupled to the movable handle member (10). The improved tool is characterised by an inner shaft (100) secured to a stationary part of the handle (2), and a hollow outer shaft (104) disposed in telescoping relation to the inner shaft (100), with the tool head (6) being secured to the inner shaft (100) and the outer shaft (104) being movable axially relative to the inner shaft (100) by manipulation of the movable tool-operating member (10) to cause opening and closing of the tissue engaging members.
Patent CA-2126825-A1 (CA)
Title: Video signal distribution system
Inventor: RHODES JOHN G L
IPC: H04N7/08
Filed: 1994-06-27
Abstract: ABSTRACT          Video Signal Distribution System In a video signal distribution system in which a plurality of video signals are modulated onto individual carrier signals spaced over a band of frequencies to form a composite signal for transmission over cables of the system, a point-to-point radio link forming part of the distribution system is provided in which the composite signal is transmitted as double side band phase modulation of a single microwave carrier signal.
Patent CA-2128275-A1 (CA)
Title: 12-hetero substituted 6,11-ethano-6,11-dihydrobenzo¬b| quinolizinium salts and compositions and method of use thereof
Inventor: DEHAVEN-HUDKINS DIANE L
IPC: A61P9/10
Filed: 1994-07-18
Abstract: ABSTRACT OF THE DISCLOSURE 12-Hetero substituted 6,11-ethano-6,11-dihydrobenzo[b]-quinolizinium salts, pharmaceutical compositions containing them, and methods for the treatment or prevention of neurodegenerative disorders or neurotoxic injuries utilizing them.
Patent CA-2128322-A1 (CA)
Title: An audiovisual teleservices interface subsystem
Inventor: KOZ MARK C
IPC: G06F3/00
Filed: 1992-11-16
Abstract: AN AUDIOVISUAL TELESERVICES INTERFACE  ACE SUBSYSTEM      ABSTRACT     The technical field of the invention generally concerns systems   for   audiovisual   teleservices   using   digital telecommunication services such as Integrated Services Digital Network ("ISDN") communications.  In the preferred embodiment, an interface subsystem includes an ISDN interface circuit for concurrently exchanging audiovisual information with an ISDN access.  The interface subsystem also includes a host computer interface circuit for exchanging video, audio, high-speed, and low-speed data with a host digital computer.   A computer program executed by a  digital  signal  processing  circuit implements  CCITT's  H.221 and  H.242  Recommendations  for audiovisual teleservices, and provides a computer program at the application layer of the OSI model that is executed by the host digital computer with an interface by which it can exchange video,  audio,  high-speed and low-speed data with another compatible terminal using digital telecommunications.