baber/WOPTO huggingface dataset:
Patent CA-2217985-A1 (CA)
Title: Adaptive equalizer
Inventor: CANDAGE ANTHONY B
IPC: H03H21/00
Filed: 1997-10-09
Abstract: An equalizer comprising a pair of high pass filters for receiving an input signal, each filter having gain, a first of the filters having gain which is substantially flat within its passband, a second of the filters having gain over a range of its passband which is controlled by an error signal, a differential amplifier for generating the error signal, having an output applied to a control input of the second filter, a pair of broadband amplitude peak detectors each for receiving an output signal of a respective one of the filters, apparatus for applying loop signals derived from outputs of the filters and passing though the peak detectors to corresponding inputs of the differential amplifier, apparatus for providing an offset to a loop signal derived from the output of the first filter, and apparatus for providing an output signal from the output of the second filter.
Patent CA-2225451-A1 (CA)
Inventor: FOWLER DWIGHT P
IPC: B29C65/18
Filed: 1996-06-21
Abstract: A reclosable bag (100) includes a detachable reclosure tie (110) having a tail portion (120) formed by a series of spaced elongated seals (116, 117) and a closed loop (121). Apparatus for forming the reclosure tie with a bag includes first and second sealing jaws (150) with external (153, 155) and internal grippers (162L, 162R, 163L, 163R) for holding web material (151). The first sealing jaw carries cutting and perforating knives (157, 160) and a cooling block (165L) that directs cooling air onto the knives to prevent the knife temperature from rising to the melting temperature of the web material. Each sealing jaw contains a heating block (164L, 164R) with complementary sealing surfaces (104R, 105R) for forming various seals including the seals that form the tail portion of the reclosure tie.
Patent CA-2228778-A1 (CA)
Inventor: JATCKO JOSEPH D
IPC: B66C19/00
Filed: 1998-02-05
Abstract: A device for connecting to, lifting at a first location load support surface, moving, inverting and releasing at a second load support surface individual heavy loads. The device includes a support frame for carrying heavy loads. The frame carries a mechanism for selective and controlled connection to and selective and controlled detachment from individual heavy loads, such as concrete molds with or without concrete in the molds. A lifting mechanism for providing selective and controlled vertical upward and downward movement to the connection mechanism and to any individual heavy load carried by the connection mechanism is associated with the connection mechanism. A mechanism for providing selective and controlled rotational movement of at least about 180° to the connection mechanism and to any individual heavy load carried by the connection mechanism is also associated with the connection mechanism. Finally, the device includes a mechanism for moving the support frame and any individual heavy load carried by the support frame in a selective and controlled direction. The resulting device is capable of selective and controlled connection and attachment to individual heavy loads located at a first location, the lifting of such loads vertically upward, the moving of such loads, the rotation of such loads by at least about 180°, the lowering of such loads vertically downward at a second location, and detaching of the connection mechanism from the individual heavy loads to deposit them at that second location.
Patent CA-2230516-A1 (CA)
Title: Pyrimidine derivatives
Inventor: SHIRATSUCHI MASAMI
IPC: A61P9/12
Filed: 1996-09-04
Abstract: The present invention is directed to a pyrimidine derivative of the following formula (1) or a salt of the derivative:       [wherein R1 represents a hydroxyl group, a lower alkoxy group, a phenyloxy group which may have a substituent, an aralkyloxy group which may have a substituent, or -NR2R3; X  represents an oxygen atom or N-R4; m is 2 or 3; and n is 1 or 2 (wherein each of R2 and R3, which are identical to or different from each other, represents a hydrogen atom, a hydroxyl group, a lower alkyl group which may have a substituent, a phenyl group which may have a substituent, an aralkyl group which may have a substituent, or a heterocyclic group which may have a substituent; R4 represents a lower alkyl group, a phenyl group, a formyl group, or a lower alkoxycarbonyl group)], as well as to a medicine containing the derivative or salt as the active ingredient. The compounds exhibit strong binding inhibitory activity against endothelin having potent vasoconstrictive effect. Therefore, the compounds are effective as remedies for various diseases including circulatory diseases.
Patent CA-2230782-A1 (CA)
Title: Preparation and use of biocidal solutions
Inventor: PARKINSON TIMOTHY JOHN
IPC: A01N59/00
Filed: 1996-09-02
Abstract: A solution for generating chlorine dioxide is disclosed. The solution comprises a chlorite, a chlorine donor, an alkali and water. The chlorine dioxide is released by adding an acid to the solution. Also disclosed are methods for preparing and using the solution.
Patent CA-2231049-A1 (CA)
Title: Eas system employing central and local stations with shared functions
Inventor: ACCOLLA WILLIAM R
IPC: G08B13/24
Filed: 1996-10-29
Abstract: An EAS system (1) employing a central station (6) having a central processing unit (7) and a local station (8) having a microcontroller (9) and in which the functions necessary for detecting the EAS tag (5) signals and generating alarms (13) are shared by the central station and the local station. A switch (14A-14D) is further provided at the local station for automatically reconfiguring the receiver antennas (3A-3H) based on antenna configuration instructions generated at the central station responsive to certain conditions at the location (2) being monitored.
Patent CA-2233850-A1 (CA)
Title: Protecting device for car air conditioner
Inventor: BIAO SUN
IPC: F04C29/00
Filed: 1998-03-31
Abstract: A protecting device for a car air conditioner includes a timer for timing a period of the rise in the level of a rotation signal delivered from a rotation sensor for detecting a rotational speed of a compressor with the signal being distinguished from noise.  On the basis of the obtained period, a judgment is made as to whether rotation of the compressor is in an abnormal state.     An electromagnetic clutch between the compressor and a car engine is controlled on the basis of the judgment.  The protecting device is mounted on a housing of the compressor with the rotation sensor so that wiring is executed only in an engine room.  The protecting device includes a state holding device for memorizing the abnormal state of the rotation of the compressor.  The air conditioner can re-start on condition that a conscious operation is performed to reset the state holding device.
Patent CA-2236902-A1 (CA)
Title: Process for the transport of molten sulphur and transport apparatus therefor
Inventor: HOBLER ALOIS
IPC: F16L53/32
Filed: 1998-05-07
Abstract: An apparatus and process are provided for the transport of molten sulphur in pipelines having mantle heating by means of a liquid medium heated to a temperature above the melting point of sulphur, which reduce transport costs and technology and energy expenditures. Petroleum from an associated pipeline is used as the heating medium. The sulphur pipeline (10) is laid in the area of the petroleum pipeline (1). The pipeline has at least one in-line pump station (7, 8, 9) for the increase of the transport pressure of the petroleum, and the petroleum used as the heating medium is reheated and brought to a higher pressure in one of these pump stations. The molten sulphur (23) is again brought up to a sufficient transport pressure in the at least one pump station (7, 8, 9).
Patent CA-2237273-A1 (CA)
Inventor: WILLEMS MARC
IPC: A61K31/50
Filed: 1997-01-14
Abstract: This invention concerns compounds of formula (I), the N-oxide forms, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof, wherein X is CH or N; m is 2 or 3 and n is 1, 2 or 3; wherein 1 or 2 C-atoms of the CH2 groups of the (a) moiety, which may also contain one double bond, may be substituted with C1-6alkyl, amino, aminocarbonyl, mono- or di(C1-6alkyl)amino, C1-6alkyloxycarbonyl, C1-6alkylcarbonylamino, hydroxy or C1-6alkyloxy; and/or 2 C-atoms of said CH2 groups may be bridged with C2-4alkanediyl; R1 is hydrogen, C1-6alkyl, C1-6alkyloxy, C1-6alkylthio, amino, mono- or di(C1-6alkyl)amino, Ar, ArNH-, C3-6cycloalkyl, hydroxymethyl or benzyloxymethyl; R2 and R3 are hydrogen, or taken together may form a bivalent radical of the formula -CH=CH-CH=CH-; in case X represents CH then L is a radical L1, L2 or L3; or in case X  represents N then L is a radical L2 or L3; L1 is Ar-C1-6alkyloxy, Ar-oxy, Ar-thio, Ar-carbonylamino, di-Ar-methyloxy-, N-Ar-piperazinyl, N-Ar-homopiperazinyl, 2-benzimidazolinonyl, Ar-NR4-, Ar-Alk-NR4-, Ar-NR4-Alk-NR5- or Het-NR4-; L2 is Ar, Ar-carbonyl, Ar-CH=CH-CH2-, naphtalenyl or Het; L3 is C1-6alkyl substituted with one or two radicals selected from Ar, Ar-oxy, or Ar-thio, further optionally substituted with cyano or hydroxy; 2,2-dimethyl-1,2,3,4-tetrahydro-naphtalenyl; 2,2-dimethyl-1H-2,3-dihydroindenyl; Ar-piperidinyl or Ar-NR4-Alk-; R4 and R5 are each independently selected from hydrogen or C1-6alkyl; Alk is C1-6alkanediyl; their preparation, compositions containing them and their use as a medicine.
Patent CA-2237885-A1 (CA)
Inventor: MAHE YANNICK
IPC: A23L29/20
Filed: 1998-06-19
Abstract: Cooking aid of the coarse-grained type which is in the form of  a combination of  agglomerates  and comprises 8-50% by weight of visual components, 15-35% of binding agent and 20-70% of flavouring ingredients, provided in dose portion packets.
Patent CA-2238876-A1 (CA)
Title: Diaphragm with perimeter edging on structural panels
Inventor: COMMINS ALFRED D
IPC: E04B1/10
Filed: 1998-05-26
Abstract: The present invention relates to horizontal, vertical or angularly disposed diaphragms which resist structural forces.      Specifically, the present invention relates to an improved mechanical connection between a structural panel and the framing members that support the structural panel forming a diaphragm. The connection includes: a structural panel having a distal side, a proximal side, and a plurality of edge faces; a frame consisting of a plurality of framing members disposed in registration with the proximal side of the structural panel near the edge faces; a plurality of perimeter fasteners connecting the structural panel to the framing members; and clips or perimeter edging members for reducing bending of the perimeter fasteners attached to a substantial number of the perimeter fasteners. The clips or perimeter edging members for reducing bending of the perimeter fasteners act when lateral forces are imposed on the building structure of which the diaphragm is a part.
Patent CA-2239787-A1 (CA)
Inventor: HACK CORNELIS ERIK
IPC: A61K38/57
Filed: 1996-12-18
Abstract: Dextran sulphate is used to potentiate C1-esterase inhibitor selectively with respect to inhibition of complement and coagulation, but not with respect to inhibition of the contact and fibrinolytic systems. The C1-esterase inhibitor to be potentiated by the dextran sulphate may be endogenous C1-esterase inhibitor, or exogenous C1-esterase inhibitor which is to be administered together with or separate from the dextran sulphate. Use of the dextran sulphate, alone or together with C1-esterase inhibitor, in prophylactic or therapeutic treatment of inflammatory conditions, such as sepsis and myocardial infarction.
Patent CA-2242286-A1 (CA)
Title: Method and apparatus for laying a stack of wood veneer sheets
Inventor: EEROLA MATTI
IPC: B65G57/06
Filed: 1998-07-02
Abstract: The present invention relates to a method of forming a layup of wood veneer sheets and an apparatus suited for implementing said method. In the method, each of the sheets (1) is first taken separately into a forward-feed position on a level situated above the layup (2). Next, the sheet is lowered with its tailing edge first onto an intermediate platform located above the desired laying point in the layup, and further therefrom, the sheet is lowered with its leading edge first onto the layup. The apparatus includes a conveyor (6) arranged to run as an endless loop. The conveyor is adapted to perform a continuous loop travel during the entire cycle of the sheet-laying sequence. The conveyor bars supporting the sheet are omitted from a given section of the conveyor loop thus facilitating a stepwise lowering of the sheet onto said intermediate platform, and therefrom, further onto the layup. The alignment of the sheet is accomplished by means of a tailing edge stop (4).
Patent CA-2243187-A1 (CA)
Inventor: CONRAD ROBERT GEORGE
IPC: A63B53/12
Filed: 1998-07-14
Abstract: There is provided a novel coupling apparatus for use in a hollow shaft of a golf club in which the shaft is divided into an upper portion comprising a grip and a lower portion comprising a head. The apparatus comprises a male part adapted to be inserted and secured into either the upper or lower portion of the shaft. The male part comprises a threaded member, wherein when the male part is in place within the shaft, the threaded member extends axially outwardly from the shaft. The apparatus further comprises a female part adapted to be inserted and secured into the other one of the upper or lower portion of the shaft,. The female part comprises a body member, wherein when the female part is in place within the shaft, the body member extends axially partially into the shaft. The top portion of the body member is tapped to receive the threaded member in threaded engagement to couple the upper and lower portions in an operable orientation.
Patent CA-2244413-A1 (CA)
Inventor: ALLEN ROBERT H
IPC: E04H4/14
Filed: 1998-08-04
Abstract: A seat arrangement for use in a swimming pool, having a main central support removably attachable to a fitting at the side of the swimming pool above the water line and with outwardly and downwardly extending portions, the arrangement also including a lateral seat support with its center attached to the central support and with outer ends spaced on opposite sides of the central support. The seat support has stool-type seats carried by its outer ends and which are normally positioned below the water line. A spacer is provided for spacing the lateral support from a sidewall of the pool below the water line, the spacer holding the seats spaced from the sidewall so that users can sit with their legs between the seats and the sidewall.
Patent CA-2246254-A1 (CA)
Title: High-temperature fuel cell and high-temperature fuel cell stack with metallic composite conducting structures
Inventor: GREINER HORST
IPC: H01M8/1213
Filed: 1997-01-30
Abstract: The invention relates to a high-temperature fuel cell (2) in which two electrodes (8, 12) are arranged between composite conducting structures (4, 16; 22, 20, 24) which remove the current produced in the high temperature fuel cell (2) and supply the electrodes (8, 12) with an operating means. At least one composite conducting structure (4, 16; 22, 20, 24) consists at least partially of an alloy based on Fe with a Cr content of between 17 and 30 % by weight which has an average coefficient of thermal expansion in the temperature range of room temperature to 900 ~C. Said coefficient of thermal expansion is adapted to the coefficient of thermal expansion of the electrolyte (10) and is 13 to 14x10-6/K, thereby reducing material costs for the composite conducting structures (4, 16; 22, 20, 24) by a factor of 10 to 20 in comparison with prior art composite conducting structures.
Patent CA-2247951-A1 (CA)
Title: A control architecture using an embedded signal status protocol
Inventor: DIETZ PHILIP SIDNEY
IPC: H04L69/40
Filed: 1998-09-23
Abstract: A network element with a centralized switch fabric is able to support multiple switching functions while meeting established performance requirements by using a control system based on an embedded signal status protocol. Generally, each input signal within a transmission path is monitored to derive signal status information, which is then individually encoded and embedded within the input signal. The embedded signal status can be decoded and provided as input to control logic forprocessing at any point within the transmission path, as necessary. In the case of a centralized switch fabric, the control logic resolves an address of a single input signal based on the embedded signal status and provides this resolved address to the switch fabric so that the appropriate input signal can be selected. In the present invention, the control logic may be configured to support any given application, e.g., "path-in-line" protection switching, whereby each configuration of control logic constitutes anapplication control set that supports the performance requirements of that givenapplication.
Patent CA-2248891-A1 (CA)
Inventor: EKUDDEN ERIK
IPC: G10L19/005
Filed: 1997-04-03
Abstract: The present invention relates to a method and an arrangement for reconstruction of a received speech signal (r), which has been transmitted over a radio channel that has been subjected to disturbances, such as e.g.  noise, interference or fading. A speech signal (rrec), where the effects from these disturbances are minimised, is generated by an estimated speech signal (r), corresponding to expected future values of the received speech signal (r), being produced according to a linear predictive reconstruction model in a signal modelling circuit (500). The received speech signal (r) and the estimated speech signal (r) are combined in a signal combination circuit (600) according to a variable ratio, which is determined by a quality parameter (q).  The quality parameter (q) may be based on measured power level of a received radio signal, an estimate of a received power level of the desired radio signal in proportion to an interfering radio signal or a bit error rate signal or bad frame indicator alternatively, which has been calculated from a data signal that has been transmitted via a certain radio channel and which represents the received speech signal.
Patent CA-2249865-A1 (CA)
Title: Method for bandwidth sharing in a multiple access system for communications networks
Inventor: CHUAH MOOI CHOO
IPC: H04L69/14
Filed: 1998-10-08
Abstract: A method for data transmission in a wireless communication network utilizes an on-demand multiple access method with a fair queuing service discipline for efficient utilization of the limited bandwidth available in the network by sharing bandwidth among the remote hosts. In one embodiment, the base station broadcaststhe system virtual time and the assigned shares of service classes to each of the wireless a Each remote host computes its own service tag and reports it to the base station, which assigns transmit permits based on the service tag values and the available data slots. If a packet is lost or in error, the sending remote recomputes the service tag values of all its queued packets, including the packet whose transmission failed. Alternatively, the remote informs the base station of its queue size and the base station computes service tags for each remote based on the service shares of the remote and the available data slots. If a packet is lost or in error, the base station recomputes the service tag values for that remote host based on the current system virtual time. In an alternate embodiment, the a or wireless node maintains a packet queue and a head-of-line tag. If a packet is lost, only the head-of-line tag needs to be changed. Once the head-of-line packet has been transmitted successfully, the rest of the queued packets will automatically receive the correct tag, the recomputed head-of-line tag plus appropriate increments. For half-duplex, both the uplink and downlink queues at the access points are managed as if there is only one system virtual time. For full-duplex, separate system virtual times for the uplink and the downlink traffic may be used. Remotes may also be divided into one or more separate groups, with each group having a different priority and receiving a different system virtual time. Service tags of all other remotes remain unaffected by the retransmission of a packet from any particular remote, meaning that the QoS experienced by the other remotes does not suffer.
Patent CA-2250189-A1 (CA)
Inventor: SCHINDLER JEFFREY
IPC: H04H20/00
Filed: 1997-03-18
Abstract: A home entertainment and information system is provided which assigns and transmits audio programming to audio output devices. Digital and analog signals from a variety of program sources are received by the home entertainment and information system. The system assigns and transmits to an audio output device a program that is distinct from programs assigned and transmitted to other audio output devices within the same system, and thus where two users are viewing different programs visually displayed on the same or different monitors, they hear the audio portion of the respective program they are viewing through individual audio output devices. An audio output device is also assignable to a remote control device such that when a program is selected using the remote control device, the audio portion of the program is transmitted to the assigned audio output device.
Patent CA-2252433-A1 (CA)
Title: Glittering cube-corner retroreflective sheeting
Inventor: ATKINSON MATTHEW R C
IPC: G02B5/124
Filed: 1997-04-03
Abstract: A cube-corner retroreflective sheeting (60) includes an array of cube-corner elements (30) that are defined by three sets of intersecting parallel grooves (45, 46, 47). The cube-corner elements (30) are arranged in the array such that the sheeting (60) glitters when exposed to light. The glitter is in the form of many discrete points of light (68) that tend to blink on and off when viewed by the nacked eye. The array may be configured such that a dihedral angle a varies between adjacent cube faces (31) of adjacent cube-corner elements (30) in each groove in one of the groove sets (45, 46 or 47) and such that base planes (36) are not parallel to each other when the sheeting (60) is laid flat. Preferably, the dihedral angle .alpha. between faces (31) of adjacent cube-corner elements (30) varies in essentially all of the grooves such that the cube-corner elements are randomly tilted throughout the array. The sheeting glitters very well under daytime viewing conditions and also to some extent under nighttime or retroreflective conditions. The glittering effect can enhance the sheeting's conspicuity, and hence highlight a person's presence to give them improved safety and security.
Patent CA-2253853-A1 (CA)
Inventor: MALIS ANDREW G
IPC: H04L12/46
Filed: 1997-05-09
Abstract: Method and apparatus for extending lower-layer flow control end-to-end, transparent to network host systems (A, B, C, D), between network hosts (A, B, C, D) attached to legacy networks without requiring any changes to the host networks or hosts themselves. a source host (c) and a destination host (D), each residing on a respective LAN, communicate via an intermediate network supporting the lower-level flow control. A higher-layer, end-to-end flow control protocol existing between the hosts (C, D). The lower-layer flow control protocol accounts for loss of bandwidth between each hop within the intermediate network. No modifications to the legacy network or hosts is required, and the extension of flow control is transparent to the legacy networks.