baber/WOPTO huggingface dataset:
Patent CA-2013246-A1 (CA)
IPC: H04B10/118
Filed: 1990-03-28
Abstract: Abstract of the Disclosure This invention is a mobile. short range, high data rate, high availability atmospheric optical communication link which can be used to temporarily bridge a break in an optical fiber network. Briefly, the invention comprises two transceivers, one at each end of a break, to bridge a severed optical fiber via an atmospheric optical transmission path which can extend for a distance of roughly 5 miles. A special light source is not required. The light transmitted through the atmosphere is the low power light emitted from the end of an optical fiber and generated by an optical regenerator normally used to generate light only for transmission through an optical fiber. The light is first expanded and collimated for atmospheric transmission and then transmitted to a receiver. At the receiver, the diameter of the received beam is optically reduced by focusing it onto the end of an optical fiber for coupling the light into the fiber. The optics for the transmitter and receiver can be mounted on a platform that adjusts in real time to optimize the signal received. Optical alignment can be automatically maintained by computer controlled transmitter steering and receiver tracking The transmitters and receivers require no communication other than the incoming beam to maintain optical alignment and does not require additional bits in the data stream for telemetry.
Patent CA-2013653-A1 (CA)
Inventor: LEE HYUN-SIK
IPC: A01K89/00
Filed: 1990-04-02
Abstract: Abstract of the invention A  free revolution stabilizing device for a fishing  reel  spool, which is characterized in that an extended portion is formed on a revolution plate of a spool, an outer wheel rim is provided so as for  it  to correspond with an outer wheel of a  housing,  and  a stabilizing wheel is provided on a supporting shaft of the  outer end of a clutch lever so as for the stabilizing wheel to contact-revolve with the outer wheel rim of the spool.   According to the present  invention, one touch operation for the clutch lever  has only to be exercised to stabilize the free revolution motions  of the  spool, the fishing string can be smoothly  released  without being entanglingly wound around the revolution shaft, the winding amount  of  the fishing string can be increased and  the  fishing reel can be miniaturized.     ( 10 - 10 )
Patent CA-2014433-A1 (CA)
Title: Method and apparatus for lining a canal
Inventor: GIROUX D WILLIAM
IPC: E02B5/02
Filed: 1990-04-11
Abstract: Abstract of the Disclosure An apparatus for lining a canal is described as well as the method  for lining the canal.   The apparatus comprises an elongated frame which extends transversely across the canal and which is propelled the length thereof.   A concrete paver is supported on the frame and is designed to lay concrete on one of the sides of the canal and at least a portion of the bottom of the canal as the frame is moved along the length of the canal.          A flexible sheet material is positioned on the canal sides and bottom just prior to the concrete being positioned thereon.  The PVC is positioned on the canal in a substantially wrinkle-free and untensioned condition.   The method of lining the canal is also described.
Patent CA-2016420-A1 (CA)
Title: Solenoid valve
Inventor: TACKETT WENDELL D
IPC: F16K31/06
Filed: 1990-05-09
Abstract: ABSTRACT OF THE DISCLOSURE The  solenoid  valve  (10)  is  received within  a cavity (12)  of a modulator body  (14).   The valve  (10) includes a first opening (22) for fluid received from a master cylinder or pump, and a top part (40) has second (44)  and third  (46)  openings.   The second opening  (44) communicates fluid with  a  brake  circuit  and  the  third opening (46) communicates fluid with a sump circuit.  An end member  (20)  includes  the  first  opening  (22)  which extends transversely therethrough and communicates with a longitudinal  opening  (24)  that  communicates  the  first opening  (22) with a chamber  (50)  contained in an upper body member (30).  Disposed within the chamber (50) is a movable  armature  (60)  having at one end a first valve (62) which may sealingly engage a seat (26) of the longi-tudinal opening (24) and at a second end a second valve (64) which may sealingly engage a seat (45) of the third opening (46).  The armature (60) includes a pair of paral-lel  axial  passages  (63)  permitting  fluid  flow  there-through.  A wave washer (70) disposed between the end mem-ber (20) and armature  (60)  biases the armature  (60)  so that the second valve (62) normally closes the seat (45) of the third opening  (46).   An electrical coil  (80)  is disposed about the end member (20) and armature (60) and when energized causes the armature (60) to be displaced so that the first valve (62) closes the seat (26) of the longitudinal opening (24) and the second valve (64) opens the  seat  (45)  of  the  third  opening  (46).  Subsequent energization of the electrical coil (80) and fluid pres-sure received from the pump via the first opening (22) results in modulation of the armature (60).
Patent CA-2018189-A1 (CA)
Inventor: HUNT ROBERT N
IPC: G01J3/10
Filed: 1990-06-04
Abstract: An infrared source suitable for use as a remote source for infrared interferometer spectrometers. This device is composed of a heat source, a black body radiating element and a concave reflector. A support to maintain the heat source and black body radiating element in proper position is also preferably included. The device of the present invention enhances the accuracy and sensitivity of gas sensing devices based upon measurement of background infrared radiation, and allows the remote infrared source to be used in locations in which ignitable materials may be present.
Patent CA-2021449-A1 (CA)
Title: Imaging lidar system
Inventor: ULICH BOBBY L
IPC: G01S17/18
Filed: 1990-07-18
Abstract: IMAGING LIDAR SYSTEM          Abstract of the Invention:    A novel timing control method is utilized in conjunction with an imaging lidar system of the type disclosed in U.S. Patent 4,862,257.  This novel timing control is employed in applications wherein the lidar system is mounted on an airborne platform.  The timing control method of this invention completely eliminates the glint detector with associated signal conditioner used in the system of U.S. Patent 4,862,257, and instead, relies upon a signal derived from the aircraft altimeter to continually provide platform altitude status.  Since the entire system is under the control of a computer, the altimeter signal can be interpreted and used to adjust total delay so as to automatically track changing platform altitude.  It is now possible to initiate all timing from the occurrence of the laser "lamp fire" signal.  The total delay to camera "gate on" is now the "lamp-to-laser" delay, plus round trip platform altitude delay (computed from the altimeter signal), plus desired water depth delay, less system delays.
Patent CA-2021450-A1 (CA)
Title: Method for measuring optical path difference of an imbalanced interferometer in a system
Inventor: LU ZHUO-JUN
IPC: G01B9/02
Filed: 1990-07-18
Abstract: METHOD FOR MEASURING OPTICAL PATH DIFFERENCE            OF AN IMBALANCED INTERFEROMETER                      IN A SYSTEM               Abstract of the Disclosure A characteristic matrix S(j,i) of the system is preformed such that each row j is preformed at a predetermined constant optical path difference.   Light from  a  laser is  transmitted through  the system at n different laser wavelengths   , and a different datum is obtained at each wavelength whereby to obtain a set of n different data.  A vector is formed from the n different data, and the characteristic matrix is multiplied by the vector to obtain a correlation vector.    The maximum amplitude element of the correlation vector points to the row of a matrix which has the greatest correlation with  the  obtained  data,   so  that  the  predetermined optical path difference of that row indicates the phase of the interferometer of  the system.    In a separate embodiment,    the  data  vector  is  divided  by  the characteristic matrix to obtain a second matrix, and the second matrix is used to form an absolute deviation.  In this method,  the minimum value of the vector points to the row of the characteristic matrix which has least absolute deviation from the obtained data than any other one of the rows so that the predetermined optical path difference of this row is indicative of the phase of the interferometer.  In a third embodiments two sets of data are obtained at two different wavelengths whereby to obtain the optical path difference of the interferometer without ambiguity.
Patent CA-2021612-A1 (CA)
Inventor: DALTON WILLIAM F
IPC: G03F7/20
Filed: 1990-07-24
Abstract: CONTACT PRINTING PROCESS            Abstract Disclosed is a method for increasing the resolution in contact printing operations by ensuring an intimate contact between the mask and photoresist. A flow of air is directed at the underside of the workpiece being printed while the mask is in place to provide pressure for the necessary contact.
Patent CA-2022219-A1 (CA)
IPC: G11B27/036
Filed: 1990-07-30
Abstract: Recording/reproducing system for use in a digital audio tape recorder using a memory function which are capable of storing reproduced aural signals in a memory bank, and reading and recording the stored aural signals with no use of additional DAT system.  The system has a memory section for storing signals that are inputted to a D/A converter from a digital signal processing section, and a memory controlling section for storing signals that are inputted to the D/A converter to the memory section, and for reading and applying the signals stored in the memory section to the digital signal processing section. The system for recording/reproducing can duplicate a tape with one DAT by storing reproduced signals in memory when the DAT is in a reproducing mode and reading and recording the stored signals on a tape.  A recording/reproducing method for a digital radio tape recorder using a memory function is also described.
Patent CA-2022393-A1 (CA)
Inventor: HWA CHIH M
IPC: C23F11/167
Filed: 1990-07-31
Abstract: This invention relates to novel organic phosphonate compounds, and more particularly to ethoxylated N,N-bis-phosphonomethyl 2-(hydroxy) ethylamine N-oxides and their water soluble salts. These novel organic phosphonates are useful as water treatment agents which can be employed for the control of scale and/or corrosion.
Patent CA-2023551-A1 (CA)
Inventor: KURABAYASHI KEN
IPC: H01G9/00
Filed: 1990-08-17
Abstract: ABSTRACT OF THE DISCLOSURE An electric double layer capacitor has two polar-ized electrodes each comprising a porous sintered body, and two current collectors each made of an electrically conduc-tive material composed of a base and electrically conductive fine particles mixed in the base.  The current collectors are held in contact with surfaces of the polarized elec-trodes and enter pores of the polarized electrodes.
Patent CA-2024856-A1 (CA)
Title: Method for passing a cable or a wire through a passage
Inventor: HORII KIYOSHI
IPC: B65H51/16
Filed: 1990-09-07
Abstract: In  a  method  of  passing  a  wire,  cable, optical fiber or the like through a passage, a coanda spiral  flow  unit  is  connected  to  the  passage,  a pressure release port is provided along the length from the coanda spiral flow unit to the end of the passage, compressed gas is supplied from a portable-type compressed gas supply through a coanda slit of said coanda spiral flow unit, a conductor or a guide is inserted through an end introducing port of said coanda  spiral  flow  unit  and  passed  through  the passage.  Smooth passing operations can be conducted at high speeds, even through a long and thin passage with many bends.
Patent CA-2027193-A1 (CA)
Title: Spray booth for applying coatings to a substrate and control device therefore
Inventor: MOSSER MARK F
IPC: B05B15/12
Filed: 1990-10-09
Abstract: A spray booth for applying a coating to a substrate includes an outer chamber (12) containing a fluid therein having a predetermined first temperature and/or humidity and an inner chamber (14) in fluid communication with the outer chamber (12).      The inner chamber (14) contains the fluid therein at a higher predetermined second humidity and/or temperature. The inner chamber (14) includes a fan (42) for recirculating a flow of the fluid at the second predetermined temperature and/or humidity therethrough and filters (34,36,44,46) for removing airborne contaminants. A temperature and/or humidity control device (58) exhausts a predetermined amount of the fluid from the inner chamber (14) out of the inner (14) and outer chambers (12) said exhausted fluid being essentially free of toxic contaminants, the exhaust of the fluid drawing fluid from the outer chamber (12) into the inner chamber (14) to lower the temperature and/or humidity in the inner chamber (14).
Patent CA-2027337-A1 (CA)
Inventor: HAFERL PETER E
IPC: H04N9/69
Filed: 1990-10-11
Abstract: A nonlinear video signal processing system provides gamma correction to improve rendition of picture details near black.      In addition, picture brilliance is improved using a brightness and frequency dependent enhancement circuit providing increased detail signal contrast in bright picture areas. In each color channel, the respective color signal is gradually separated into a low level amplitude signal portion and a higher level amplitude signal portion.  The higher level amplitude portion is high-pass frequency filtered.      The low level signal portion and the high-pass filtered higher amplitude signal portion are added to the original, linear video signal for producing a combined signal coupled to the kinescope. The low level signal portion is DC coupled to the linear signal and the high level signal portion is AC coupled to the linear signal.
Patent CA-2028447-A1 (CA)
Inventor: RICKETTS JONATHAN E
IPC: A01F7/06
Filed: 1990-10-24
Abstract: ABSTRACT OF THE DISCLOSURE         An axial-flow combine with an improved rotor assembly which is configured to be less sensitive to crop material conditions.  The rotor assembly includes a rotor casing with a rotor rotatably arranged therewithin.  At its forward end, the rotor casing is provided with a transition section having a forward crop receiving end and an aft end. The rotor is provided with an impeller section which leads in a downstream direction to a threshing section.  The impeller section of the rotor includes a plurality of impeller blades arranged within the transition section of the rotor assembly.  A rearward end of each blade terminates upstream of the aft end of the transition section whereby allowing threshing instrumentalities on the threshing section of the rotor to extend into the transition section thereby extending the threshing area of the rotor thus enhancing crop material flow through the rotor assembly.
Patent CA-2031055-A1 (CA)
Inventor: MCKNIGHT RICHARD R
IPC: H04J3/00
Filed: 1990-11-28
Abstract: PROGRAMMABLE MULTIPLEXING TECHNIQUES FOR MAPPING A    CAPACITY DOMAIN INTO A TIME DOMAIN WITHIN A FRAME Abstract Method and apparatus are disclosed for a programmable multiplexer for converting each of one or more input data signals, with individual data rates, into a second higher data rate signal by mapping contiguously arbitrarily assigned Capacity Time Slots (CTSs) in a capacity domain frame to Time Slots in a Time Domain frame (TDTSs) so the TDTSs for each input signal are substantially uniformly spread throughout the TD frame. The programmable multiplexer receives separate input data rate signals which are clock synchronized to the multiplexer clock from separate synchronizers, and maps the capacity domain of the input signals to the lime domain frame format using a 2-step or 3-step digit reverse technique. Both techniques decompose the capacity domain address into predetermined digits from predetermined number bases and then combine the digits to perform a similar computation using the number bases in reverse order. The 3-step technique uses an intermediate step of translating the initially determined values for each the predetermined digits using a bit reversal technique.
Patent CA-2033419-A1 (CA)
Inventor: TOKITOH YASUO
IPC: C07C29/36
Filed: 1990-12-28
Abstract: An improved process for producing octa-2,7-dien-1-of by reacting butadiene with water is provided. The butadiene/ water reaction is carried out in an aqueous sulfolane solution containing a carbonate and/or bicarbonate of a monodentate tertiary amine having a basicity constant (pKa) of at least 7 in the presence of a palladium compound and a phosphonium salt, while maintaining the mole ratio of butadiene to octa-2,7-dien-1-01 at at least 0.6, to synthesize octa-2,7-dien-1-01.  The octa-2,7-dien-1-of is extracted and part of the extraction residue containing catalyst is returned to the synthesis step. The extract containing octa-2,7-dien-1-01 is washed with an aqueous sulfolane solution in the presence of a water-soluble phosphine and separating the mixture into the aqueous sulfolane solution layer and the washed extract layer and part of the aqueous sulfolane solution layer obtained during washing is returned to the extraction step. The washed extract layer is washed to obtain the final product.
Patent CA-2034490-A1 (CA)
Inventor: JOHNSON ROBERT M JR
IPC: H01M10/42
Filed: 1990-06-08
Abstract: A battery charging system including a battery of one chemistry type and a battery charger for a different battery type is dis-closed. If a battery over-discharge condition or if an electrochemical cell (201, 202, 203, 204) imbalance is detected within the bat-tery, the battery prevents charging by the battery charger by means of a resettable switch (226, 227, 228, 229, 217).
Patent CA-2037012-A1 (CA)
Inventor: NEAR CHRISTOPHER D
IPC: H04L7/00
Filed: 1991-02-25
Abstract: Optimized synchronization planning and clock distribution for a network of interconnected digital equipment is achieved by designating a networknode at the highest stratum level as the master clock node, forming a group of all unassigned nodes connected to the assigned node or nodes, selecting subgroup of all nodes from the group wherein the subgroup includes all nodes having the highest stratum level of the group, limiting the subgroup to the nodes which have a desired characteristic when such nodes are included in the subgroup, determining the synchronization performance of each node in the subgroup according to a predetermined criterion, assigning one node from the subgroup as a clock timing receiver wherein the one node exhibits the best performance for nodes in the subgroup, and iterating the method at the forming step. In order to obtain an optimum synchronization plan, it is desirable to repeat the entire method described above for the complete set of nodes which are capable of being designated as a master clock node. When more than one node is capable of being considered as a master clock node, the synchronization planning method is then completed by computing the network synchronization performance for each synchronization plan related to a different designated master clock node and choosing the synchronization plan which offers the best network synchronization performance as computed above.
Patent CA-2038317-A1 (CA)
Title: Pyridine and related aza heterocycle derivatives as cardiovascular agents
Inventor: TOMCUFCIK ANDREW S
IPC: A61K31/4409
Filed: 1991-03-14
Abstract: 31,191-00 PYRIDINE AND RELATED AZA HETEROCYCLE DERIVATIVES AS CARDIOVASCULAR AGENTS                      Abstract of the Disclosure Novel pharmaceutical compounds and compositions having nitrogen containing ring systems which may be represented by the following structural formula:                                 wherein R1 or R3 is a moiety of the formula:                                     ;   wherein R6 is selected from either hydrogen or acetyl; R7 is selected from 2, 3 or 4-pyridyl or 1-imidazolyl and Q is - (CH2)n, where n is an integer from 1 to 5 and R1 and R2, R2 and  R3, R3 and R4 or R4 and R5 taken together may be -CH=CH-CH=CH-. The compounds and compositions are useful as inhibitors of thromboxane synthetase and in the treatment of hypertension and arrytbmia in mammals.
Patent CA-2040122-A1 (CA)
Title: Electrical or electronical motor control
Inventor: DESRANLEAU REJEAN
IPC: H01R27/00
Filed: 1991-04-10
Abstract: ELECTRICAL OR ELECTRONICAL MOTOR CONTROL         ABSTRACT     An electrical or electronical motor control composed of a switch and of an electromechanical component, each chosen from a group of different types of respectively switches and electromechanical components.  A switch and an electromechanical component together form  a  control  box.     In  a  preferred  embodiment,   the electromechanical  component  includes  a universal multiple pin connector whereas the switch is provided with a complementary multiple pin connector and the connection between those connectors is such that only the appropriate pins required to produce the appropriate result  for a particular switch/  electromechanical component combination are activated.
Patent CA-2042566-A1 (CA)
Title: Shock-resistant graft vinylaromatic copolymer endowed with improved mechanical properties
Inventor: ROSSI ANNA G
IPC: C08F255/02
Filed: 1991-05-14
Abstract: "SHOCK-RESISTANT GRAFT VINYLAROMATIC COPOLYMER ENDOWED WITH          IMPROVED MECHANICAL PROPERTIES"                         ABSTRACT          Shock-resistant graft vinyl-aromatic copolymer endowed with improved  mechanical  properties  comprising  a  copolymer consisting of a vinyl-aromatic monomer and an ethylenically unsaturated acrylic monomer;  this copolymer should be at least partially grafted on an olefinic elastomer containing less than 0.4% by weight, with respect to said copolymer, of an ethylenically unsaturated compound having a carboxylic group or one of its derivatives.
Patent CA-2045534-A1 (CA)
Title: Day-night rear view mirror
Inventor: TAYLOR BRANDT G
IPC: B60R1/04
Filed: 1990-01-10
Abstract: (16) ABSTRACT OF THE DISCLOSURE      A day-night mirror assembly for a motor vehicle having a housing with a front opening, a first sheet of transparent material at the opening and second sheet which is located behind the first sheet and which has a first light reflective surface which faces the opening. A third sheet having a second light reflecting surface which differs in light reflectivity from the first light reflective surface is located within the housing for movement between an inactive position to an active position in which the third sheet is located between the first and second sheets and a second light reflective surface faces the opening in the housing. The third sheet is selectively positioned in either the active position or the inactive position by means of an actuator which is manually operated from outside of the housing.
Patent CA-2046551-A1 (CA)
Title: Guide sleeve, guide post and modified ball bearing assembly
Inventor: HANAWAY RONALD L
IPC: B30B15/04
Filed: 1991-07-09
Abstract: ABSTRACT           In combination, a guide post having a longitudinal slot and a ball bearing cage adjustably receiving the post and adapted for relative longitudinal and rotary movements there being an internal annular recess in said cage inwardly of one end.  A truncated roller bearing with opposed hemispherical  surfaces  and  opposed  flat  sides  is  guidably  positioned within  the  slot  with  the  roller  bearing maintaining  a  rolling  point contact with the bottom wall of the slot and with the roller flat sides loosely and slidably registerable with the side walls of the slot.  One of the hemispherical surfaces of the bearing being positioned and retained within an internal annular recess within the ball cage.  A fastener within the profile of the guide post adjacent one end of the longitudinal slot traps the roller within the longitudinal slot and ball cage.