Chang, CA
Corina Chang, Ancaster CA
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20110179995 | AUTOMATED FLUID DISPENSER - An automated fluid dispenser for smoothly applying a viscous fluid onto a component is provided. The automated fluid dispenser can have a nozzle with a nozzle tip and a support. The nozzle can be pivotally attached to the support about a pivot axis. In addition, a tension member can be attached to the nozzle, the tension member applying an anti-pivoting force to the nozzle when it pivots about the pivot axis. | 07-28-2011 |
Felix Chang, North York CA
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20100124876 | AIR DUCT OUTLET - An air duct outlet is disclosed herein. The air duct outlet includes a housing comprising a first wall being substantially planar and a second wall being at least partially convex to the first wall. The first wall and the second wall are disposed in adjacent, spaced-apart relation and defining at least two sides of an air passageway. The air passageway extends along a flow path between an inlet and a flared outlet. The air duct outlet also includes a vane pivotally disposed within the air passageway along the flow path. The vane is movable between a first position wherein the vane substantially blocks the air passageway and a range of other positions that are increasingly substantially parallel to the first wall. An air stream flowing through the air passageway is deflected by the vane an amount that decreases with each position more remote of the first position over the range such that the air stream adheres to the second wall by an amount that increases with each position more remote of the first position over the range. Also, the air stream exits from the air duct outlet in a direction that is increasingly transverse to the first wall as the vane moves away from the first position. | 05-20-2010 |
Hsiu-Wen Chang, Calgary CA
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20150345952 | Method and Apparatus for Improved Navigation for Cycling - A method and apparatus for providing an enhanced navigation solution for cycling applications is described herein. The navigation solution is about a device within a platform, which is a cycling platform such as for example a bicycle, a tricycle, or a unicycle amongst others. The device can be in any orientation with respect to the platform (such as for example in any location or orientation on the body of the cyclist). The device includes a sensor assembly. The sensors in the device may be for example, accelerometers, gyroscopes, magnetometers, barometer among others. The present method and apparatus can work whether in the presence or in the absence of navigational information updates (such as, for example, Global Navigation Satellite System (GNSS) or WiFi positioning). | 12-03-2015 |
20150354951 | Method and Apparatus for Determination of Misalignment Between Device and Pedestrian - The present disclosure relates to a method and apparatus for determining the misalignment between a device and a pedestrian, wherein the pedestrian can carry, hold, or use the device in different orientations in a constrained or unconstrained manner, and wherein the device comprises a sensor assembly. The sensors in the device may be for example, accelerometers, gyroscopes, magnetometers, barometer among others. The sensors have a corresponding frame for the sensors' axes. The misalignment between the device and the pedestrian means the misalignment between the frame of the sensor assembly in the device and the frame of the pedestrian. The present method and apparatus can work whether in the presence or in the absence of absolute navigational information updates (such as, for example, Global Navigation Satellite System (GNSS) or WiFi positioning). | 12-10-2015 |
Ian I. Chang, North Vancouver CA
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20100273630 | SYNTHESIZED HYBRID ROCK COMPOSITION, METHOD, AND ARTICLE FORMED BY THE METHOD - The invention relates to synthetic hybrid rock compositions, articles of manufacture and related processes employing mineral waste starting materials such as mine tailings, mine development rock, ash, slag, quarry fines, and slimes, to produce valuable articles of manufacture and products, which are characterized by superior physical and structural characteristics, including low porosity, low absorption, increased strength and durability, and retained plasticity. The resulting materials are compositionally and chemically distinct from conventional synthetic rock materials as demonstrated by scanning electron microprobe analysis, and are useful in a wide variety of applications, particularly with respect to commercial and residential construction. | 10-28-2010 |
20120235320 | SYNTHESIZED HYBRID ROCK COMPOSITION, METHOD, AND ARTICLE FORMED BY THE METHOD - The invention relates to synthetic hybrid rock compositions, articles of manufacture and related processes employing mineral waste starting materials such as mine tailings, mine development rock, ash, slag, quarry fines, and slimes, to produce valuable articles of manufacture and products, which are characterized by superior physical and structural characteristics, including low porosity, low absorption, increased strength and durability, and retained plasticity. The resulting materials are compositionally and chemically distinct from conventional synthetic rock materials as demonstrated by scanning electron microprobe analysis, and are useful in a wide variety of applications, particularly with respect to commercial and residential construction. | 09-20-2012 |
Jeffery David Chang, Vancouver, Bc CA
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20110134123 | METHOD, APPARATUS, MEDIA, AND SIGNALS FOR APPLYING A SHAPE TRANSFORMATION TO A THREE DIMENSIONAL REPRESENTATION - A method, apparatus, media and signals for applying a shape transformation to at least a portion of a three dimensional representation of an appliance for a living body is disclosed. The representation is defined by an input plurality of coordinates representing a general shape of the appliance. The method involves identifying a coordinate location of a datum plane with respect to the representation of the appliance, the datum plane defining a transform volume within which the shape transformation is to be applied, the transform volume extending outwardly from and normal to a first surface of the datum plane. The method also involves identifying input coordinates in the plurality of input coordinates that are located within the transform volume. The method further involves modifying the identified input coordinates in accordance with the shape transformation to produce a modified representation of the appliance, and storing the modified representation of the appliance in a computer memory. | 06-09-2011 |
Jeffrey David Chang, Vancouver CA
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20120019531 | Method and Apparatus for Applying a Rotational Transform to a Portion of a Three-Dimensional Representation of an Appliance for a Living Body - A method and apparatus for applying a rotational transform to a portion of a three-dimensional representation of an appliance for a living body is disclosed. The representation is defined by an input plurality of coordinates stored in a processor circuit memory, the input plurality of coordinates representing a general shape of the appliance. The method involves applying the rotational transform to the portion of the representation of the appliance within the transform volume to produce an output plurality of coordinates representing a modified shape of the appliance such that the general shape of portions of the appliance outside the transform volume remain un-modified by the rotational transform, and storing the output plurality of coordinates in the processor circuit memory. | 01-26-2012 |
Jen-Shih Chang, Hamilton CA
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20090294276 | METHOD AND APPARATUS OF FORMING DOMAIN INVERSION STRUCTURES IN A NONLINEAR FERROELECTRIC SUBSTRATE - A crystal poling apparatus has as ingle-domain ferroelectric substrate (e.g. MgO doped LiNbO3 substrate), a sample holder, a high voltage source, a corona torch, a gas source, a chamber, and at least one vacuum pump. An electrode with a certain structure (e.g. a periodical pattern) is formed on the first surface of the substrate, and the substrate is set with the electrode facing down on top of the sample holder. The electrode is grounded so that high electric field is formed in the area with electrode due to the formation of charges generated by the corona torch on the second surface of the substrate. The charge distribution on the second surface of the substrate is controlled by the high voltage source and the gas source. To achieve the optimized crystal poling, the temperature of the substrate is set by the temperature controller, and the electrode on the first surface of the substrate is isolated by the vacuum pump. | 12-03-2009 |
Jen-Shin Chang, Hamilton CA
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20100162688 | FUEL INJECTION APPARATUS - A fuel injection apparatus ( | 07-01-2010 |
Jinliang Chang, Toronto CA
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20140343999 | RISK-AWARE PROJECT SCHEDULING TECHNIQUES - A method, system, and computer program product for reducing risk and schedule during workflow scheduling in asset-intensive projects. A subject project schedule comprises a plurality of tasks wherein at least some of the tasks have an initial resource demand. A critical path through the plurality of tasks is identified. Alternate resources deemed to be possible alternatives to the initial resource demand are identified, and the risk of using the alternate resource is assessed by calculating a first path risk value (e.g., corresponding to assigning initial resource demand to the critical path) and calculating a second path risk value (e.g., corresponding to assigning the first alternate resource to the critical path). The impact of selecting one or another risk-assessed resource is assessed, and a resource having a lower risk is selected. Further processing includes adjusting at least one task on the critical path to use the selected lower risk resource. | 11-20-2014 |
Kim Chang, Calgary CA
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20140315148 | DENTAL FORCEPS - Dental forceps include opposing gripping surfaces configured to grip a tooth or crown and a fulcrum pad adjacent the gripping surfaces. The forceps may act as a first class lever with the fulcrum pad to extract the tooth or crown when gripping the tooth or crown. | 10-23-2014 |
Kin Hung Jeffrey Chang, Vancouver CA
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20140069124 | APPARATUS AND METHOD FOR FLUIDIZED BED TREATMENT OF MATERIALS - Apparatus and method for treatment of a particulate material employs a conveyor belt for supporting the particulate material for transport and a source of gas for delivery through the conveyor belt to fluidize the particulate material. A gas distribution system is used for controlling the gas flow to create regions of greater and lesser fluidization. This approach avoids the use of mechanical agitation of the conveyor belt which improves efficiency and reliability. The apparatus and method fmd particular application in the handling of particulate foodstuffs in bulk when treatment such as freezing, heating, or blanching of individual food particles is required. | 03-13-2014 |
Peter Lit Ming Chang, Scarborough CA
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20120093672 | DIRECT CONTROL LINEAR VARIABLE DISPLACEMENT VANE PUMP - A fluid pumping system for a power transmission device includes a variable displacement vane pump having a housing containing a rotor, a plurality of vanes coupled to the rotor and a linearly translatable slide for varying the displacement of the pump. A control system varies the displacement of the pump and provides a fluid output pressure selected from a continuously variable range of output pressures which are independent from the operating speed of the pump. The control system includes a linear actuator for moving the slide between minimum and maximum pump displacement positions. The linear actuator includes an electric stepper motor for bi-directionally translating an actuator shaft acting on the slide. | 04-19-2012 |
Peter Lit Ming Chang, Ontario CA
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20100215537 | Gear Pump With Improved Inlet Port - With a traditional gear pump inlet design it is difficult to fill the pumping chamber when the inlet pressure is low or the operating speed is high A gear pump ( | 08-26-2010 |
Peter R. Chang, Saskatoon CA
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20080299646 | Process For Producing Polysaccharide Gum - The invention provides a process for producing polysaccharide gum comprising extracting a plant material with an aqueous solvent to produce a polysaccharide gum-containing extract; contacting the extract with at least one proteolytic enzyme to at least partially digest proteins in the extract; adding an organic solvent to the extract to precipitate the polysaccharide gum; and collecting the precipitated polysaccharide gum. | 12-04-2008 |
Philip Chang, Toronto CA
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20140261631 | SUNLIGHT CONCENTRATING AND HARVESTING DEVICE - Device for concentrating and harvesting sunlight comprising: A panel having rigid layer having a patterned electrical circuit thereon. An array of sunlight concentrating and harvesting units, each unit being formed by at least one rigid element and a portion of the rigid layer; and including: a rigid optical concentrating element, a photovoltaic cell sandwiched within the panel for converting sunlight into electrical energy, and an electrical conductor. The electrical conductor being the primary heat sink for the photovoltaic cell, the photovoltaic cell being primarily cooled via conduction. The electrical conductor and the optical concentrating element being dimensioned and arranged within the unit such that the electrical conductor does not materially impede transmission of sunlight to the photovoltaic cell. The electrical conductor transmitting electrical and thermal energy received from the photovoltaic cell away from the unit. | 09-18-2014 |
20140268758 | ILLUMINATION DEVICE - Device for providing comprising: A panel having rigid layer having a patterned electrical circuit thereon. An array of illuminating units, each unit being formed by at least one rigid element and a portion of the rigid layer; and including: a rigid optical dispersing element, a light source sandwiched within the panel for generating light from electrical energy, and an electrical conductor. The electrical conductor being the primary heat sink for the light source, the light source being primarily cooled via conduction. The electrical conductor and the optical dispersing element being dimensioned and arranged within the unit such that the electrical conductor does not materially impede transmission of light generated by the light source to the outside of the device. The electrical conductor transmitting electrical and thermal energy received from the light source away from the unit. | 09-18-2014 |
20140283895 | CONCENTRATED PHOTOVOLTAIC PANEL - Concentrated photovoltaic panel comprises: (1) a receiver substrate assembly including: (a) a rigid sheet of light transmissive material having a first surface, a second surface opposite the first surface, and a conductor pattern attached to the first surface; and (b) at least one receiver assembly affixed to the rigid sheet, each receiver assembly including a photovoltaic cell in electrical communication with the conductor pattern; and (2) at least one light-guide optic attached to and supported by the receiver substrate assembly, each light-guide optic in optical communication with the photovoltaic cell of an associated one of the at least one receiver assembly for guiding light received via the receiver substrate assembly toward said photovoltaic cell. | 09-25-2014 |
20140286017 | ILLUMINATION PANEL - Illumination panel comprises: (1) a receiver substrate assembly including: (a) a rigid sheet of light transmissive material having a first surface, a second surface opposite the first surface, and a conductor pattern attached to the first surface; and (b) at least one receiver assembly affixed to the rigid sheet, each receiver assembly including a light source in electrical communication with the conductor pattern; and (2) at least one light-guide optic attached to and supported by the receiver substrate assembly, each light-guide optic in optical communication with the photovoltaic cell of an associated one of the at least one receiver assembly for guiding light for output via the rigid sheet. | 09-25-2014 |
Philip M. Chang, Scarborough CA
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20110011449 | LIGHT-GUIDE SOLAR PANEL AND METHOD OF FABRICATION THEREOF - The present invention is that of a solar energy system that uses a light-guide solar panel (LGSP) to trap light inside a dielectric or other transparent panel and propagates the light to one of the panel edges for harvesting by a solar energy collector such as a photovoltaic cell. This allows for very thin modules whose thickness is comparable to the height of the solar energy collector. This eliminates eliminating the depth requirements inherent in traditional concentrated photovoltaic solar energy systems. A light guide solar panel has a deflecting layer, a light guide layer and a solar cell in optical communication with the light guide layer. The deflecting layer receives light at a first surface and inputs the light into the light guide layer. The light guide layer propagates the light to the solar cell, which is aligned generally parallel to the input surface. | 01-20-2011 |
20130319508 | SELF-BALLASTED APPARATUS FOR SOLAR TRACKING - A frame for mounting a plurality of solar tracking units is provided. The frame comprises a plurality of leg assemblies interconnected by trusses to provide a stable structure that is ballasted by the frame's own weight, rather than relying on external ballast such as concrete blocks. Each leg assembly is provided with a shaft with a mounting end for mounting a solar tracking unit. Each solar tracking unit includes an armature assembly and at least one motor for controlling the orientation and position of a solar panel mounted thereon. Solar tracking assemblies, each comprising the frame and plurality of solar tracking units, can be assembled in an array using connectors spacing the assemblies, thus providing enhanced stability. Each of the assemblies can be provided with a local control unit for controlling each individual solar tracking unit, and a global control unit may be used to control the local control units. | 12-05-2013 |
20140150774 | SOLAR TRACKING APPARATUS AND FIELD ARRANGEMENTS THEREOF - A solar tracker assembly for mounting one or more solar tracking units, which can be adapted for use with various solar energy modules such as photovoltaic modules and heliostat mirrors, is provided. Each assembly comprises a frame of four sides connected at leg assemblies, each leg assembly being adapted for mounting a solar tracking unit. The frame may be configured as an oblique-angled, rhombus or diamond frame with a cross member extending between the closer-spaced leg assemblies. A set of frames may be arranged in the field with adjacent sides of adjacent frames being parallel, with spacing arms of predefined lengths interconnecting adjacent pairs of frames, to provide a desired hexagonal grid spacing. | 06-05-2014 |
20140150845 | SOLAR TRACKING APPARATUS AND FIELD ARRANGEMENTS THEREOF - A solar tracker assembly for mounting one or more solar tracking units, which can be adapted for use with various solar energy modules such as photovoltaic modules and heliostat mirrors, is provided. Each assembly comprises a frame of four sides connected at leg assemblies, each leg assembly being adapted for mounting a solar tracking unit. The frame may be configured as an oblique-angled, rhombus or diamond frame with a cross member extending between the closer-spaced leg assemblies. A set of frames may be arranged in the field with adjacent sides of adjacent frames being parallel, with spacing arms of predefined lengths interconnecting adjacent pairs of frames, to provide a desired staggered spacing. | 06-05-2014 |
20150207453 | SELF-BALLASTED APPARATUS FOR SOLAR TRACKING - A frame for mounting a plurality of solar tracking units is provided. The frame comprises a plurality of leg assemblies interconnected by trusses to provide a stable structure that is ballasted by the frame's own weight, rather than relying on external ballast such as concrete blocks. Each leg assembly is provided with a shaft with a mounting end for mounting a solar tracking unit. Each solar tracking unit includes an armature assembly and at least one motor for controlling the orientation and position of a solar panel mounted thereon. Solar tracking assemblies, each comprising the frame and plurality of solar tracking units, can be assembled in an array using connectors spacing the assemblies, thus providing enhanced stability. Each of the assemblies can be provided with a local control unit for controlling each individual solar tracking unit, and a global control unit may be used to control the local control units. | 07-23-2015 |
20150255658 | LIGHT-GUIDE SOLAR PANEL AND METHOD OF FABRICATION THEREOF - The present invention is that of a solar energy system that uses a light-guide solar panel (LGSP) to trap light inside a dielectric or other transparent panel and propagates the light to one of the panel edges for harvesting by a solar energy collector such as a photovoltaic cell. This allows for very thin modules whose thickness is comparable to the height of the solar energy collector. This eliminates eliminating the depth requirements inherent in traditional concentrated photovoltaic solar energy systems. A light guide solar panel has a deflecting layer, a light guide layer and a solar cell in optical communication with the light guide layer. The deflecting layer receives light at a first surface and inputs the light into the light guide layer. The light guide layer propagates the light to the solar cell, which is aligned generally parallel to the input surface. | 09-10-2015 |
Philip M. Chang, Toronto CA
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20120055552 | LIGHT-GUIDE SOLAR MODULE, METHOD OF FABRICATION THEREOF, AND PANEL MADE THEREFROM - A photovoltaic light guide solar concentration apparatus has a deflecting layer, a light-guide layer optically coupled to the deflecting layer, a secondary optic and a photovoltaic cell. The photovoltaic concentration apparatus has a central optical axis that, in operation, is parallel to incident sunlight. A deflecting layer includes a plurality of focusing elements symmetrically arranged with respect to the central optical axis. The light-guide layer is optically coupled to the plurality of focusing elements of the deflecting layer. The light-guide layer has a reflective surface and a plurality of opposite facets symmetrically arranged with respect to the central axis and focused sunlight from the deflection layer enters the light-guide layer and is directed and trapped by the reflective surface and the opposite facets and guided inside the light-guide layer towards an exit aperture through total internal reflections. A secondary optic is coaxially located with respect to the central optical axis and is coupled to the light guide layer the secondary optic that has at least one reflective surface. The secondary optic redirects the light towards the exit aperture. A photovoltaic cell is located at the exit aperture and on the central axis to receive sunlight from the secondary optic within an acceptance angle relative to the central axis. | 03-08-2012 |
Phillip M. Chang, Scarborough CA
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20110226331 | STIMULATED EMISSION LUMINESCENT LIGHT-GUIDE SOLAR CONCENTRATORS - A solar concentrator comprising: A luminescent layer having luminescent particles capable of becoming excited by absorbing solar light of a first absorption frequency and, once excited, being capable of being stimulated to emit luminescent light at a first emission frequency. A light source for generating a pump light of the first emission frequency for stimulating the excited luminescent particles having absorbed solar light such that when the pump light traveling in a direction of travel stimulates the luminescent particles having absorbed solar light at the first absorption frequency the luminescent particles emit luminescent light at the first emission frequency in the direction of travel of the pump light, intensifying the pump light. A light guide adjacent to and optically coupled with the luminescent layer, the light-guide for assisting in guiding the intensified pump light via total internal reflection to a light collection area. | 09-22-2011 |
Phing Chu Chang, Toronto CA
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20130070772 | COAXIAL CABLE DISTRIBUTION OF CATV AND WIRELESS SIGNALS - A system and method for distributing signals from a first communications network and a second communications network to a location, including a base transceiver station configured to receive a signal from the first communications network and convert the signal into an RF signal for transmission to a mobile terminal, the RF signal having an RF frequency above a threshold frequency, and a coupling module configured to: receive the RF signal from the base transceiver station and receive a data signal from the second communications network, the data signal having an RF frequency below the threshold frequency; combine the RF signal and the data signal into a combined signal with the RF signal and data signal each retaining their respective frequencies; and provide the combined signal over a coaxial cable link to the location. | 03-21-2013 |
20140132477 | VERTICALLY INTERLEAVED DISTRIBUTED ANTENNA SYSTEM - A vertically interleaved in-building distributed antenna system is described. The in-building distributed antenna system includes a multiple-input and multiple-output (MIMO) radio. The MIMO radio includes a first branch connector and a second branch connector. The in-building distributed antenna system further includes a first branch transport medium coupled to the first branch connector and a second branch transport medium coupled to the second branch connector. The in-building distributed antenna system further includes a plurality of antennas. The plurality of antennas includes one or more first branch antennas coupled to the first branch transport medium and one or more second branch antennas coupled to the second branch transport medium. The first branch antennas are vertically interleaved with the second branch antennas in the structure. | 05-15-2014 |
Rudy Chang, Lasalle CA
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20090126764 | METHOD AND SYSTEM FOR COLLECTING PAPER DUST - Methods and systems for collecting dust produced in paper making involve an air inlet passage including an opening to receive dust laden air. The opening to the inlet passage may have a width approximately equal to a width of a paper web in a paper making machine. The air inlet passage is devoid of water injection. The dust collector may include a central vortex chamber and may be defined by an outer wall and an internal guide vane. There may be a water injector mounted in the outer wall and injecting water into the central vortex chamber, and there may be a discharge outlet of the central vortex chamber connectable to a water and air separator. | 05-21-2009 |
20100224340 | APPARATUS AND METHOD FOR STABILIZING A MOVING WEB HAVING TRANSITIONS IN A SURFACE ADJACENT THE WEB - A web stabilizer adapted to stabilize a web moving across a span between two components of a web machine or machines, the stabilizer including: a surface facing and adjacent the moving web, and at least one transition in the surface of the stabilizer, wherein the transition is a protrusion or recess in the surface between a leading edge of the stabilizer facing a direction of web travel and a trailing edge of the stabilizer. | 09-09-2010 |
20110005698 | APPARATUS AND METHOD FOR STABILIZING A MOVING WEB - Devices and methods related to a web stabilizer for stabilizing a moving web with a surface adjacent the moving web and with a supply of moving fluid in a direction parallel to the moving web and a supply of moving fluid in a direction perpendicular to the moving web. | 01-13-2011 |
20120006875 | APPARATUS AND METHOD FOR STABILIZING A MOVING WEB - Devices and methods related to a web stabilizer for stabilizing a moving web with a surface adjacent the moving web and with a supply of moving fluid in a direction parallel to the moving web and a supply of moving fluid in a direction perpendicular to the moving web. | 01-12-2012 |
Sheng Chang, Oakville CA
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20130056412 | MIXED LIQUOR FILTERABILITY TREATMENT IN A MEMBRANE BIOREACTOR - A membrane bioreactor uses a process and apparatus for dosing flux enhancing chemicals (FEC) to respond to temporary periods of operation that cause, or are likely to cause, membrane fouling. An FEC dosing device is provided in communication with a channel separating a process tank and the membrane unit of an MBR. A mixer in the channel rapidly mixes dosed FEC with mixed liquor flowing into the membrane tank. The dosing device is connected to sensors sensing conditions in the channel, the membrane unit or both. FEC is added to the mixed liquor flowing into the membrane unit considering conditions in the mixed liquor flowing to the membrane unit or membrane operating parameters or both. The FEC dosage may be in the range of 0.05 to 10 mg/g MLSS. The process may include steps of initiating dosing, adjusting the dosing concentration, and terminating dosing. | 03-07-2013 |
Shoude Chang, Ottawa CA
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20080198367 | Interferometric System for Complex Image Extraction - The invention provides an interferometric system and method for quadrature detection of optical characteristics of a sample. The system includes a Mach-Zehnder interferometer providing a variable optical delay between light collected from the sample and reference light. The Mach-Zehnder interferometer has an output M×N coupler with N≧3 output ports. Two differential detectors, each having two input ports coupled to a different two of the N output ports of the M×N coupler, produce first and second electrical signals having an interferometric phase shift. A processor is provided for computing real and imaginary parts of a complex refractive index of the sample from the first and second electrical signals by using complex deconvolution. | 08-21-2008 |
20090324943 | Object identification using quantum dots fluorescence allocated on fraunhofer solar spectral lines - An optical based identification system that is easily deployable and can be used in broad daylight. Fluorescent semiconductor nanocrystals (quantum dots) that fluoresce at specific wavelengths are distributed in a suitable polymer. The resulting mixture can then be applied as paint or on an adhesive label for application to a portion of any equipment or member of a friendly unit. The system also has a corresponding detectional processing unit which may be mounted on ordnance or on any other equipment such as aircraft. The detection unit uses a laser, which when active, causes a laser beam to strike the paint or adhesive able applied to the friendly unit. This causes the quantum dots to fluoresce. The fluorescence of the quantum dots can be detected by the sensor portion of the detection/processing unit. The sensor portion then transmits the data generated by the detected fluorescence to a data processing portion detection/processing unit such as a corresponding signal to the equipment operator or, if the unit is mounted on ordnance that has been launched to the warhead to deactivate the warhead. To overcome the effects of broad daylight on an optical system, the quantum dots can be detected by the sensor portions of the detection/processing unit. The sensor portion then transmits the data generated by the detected fluorescence to a data processing portion which decodes the data. If the decoded data indicates a friendly unit, the detection/processing unit sends a corresponding signal to the equipment operator or, if the unit is mounted on ordnance that has been launched to the warhead to deactivate the warhead. To overcome the effects of broad daylight on an optical system, the quantum dots are engineered to fluoresce at wavelengths corresponding to the absorption lines of the solar spectrum, more commonly known as Fraunhofer lines. | 12-31-2009 |
20110257486 | Optical catheter with rotary optical cap - A scanning optical head for a catheter is locally controlled by a motor at an insertion end of the catheter uses a hollow motor through which a longitudinal optical path of the catheter passes. This permits the motor to be positioned between a control base of the catheter and avoids rotating the whole fibre, and therefore makes the beam scanning stable and accurate. In addition, because there is no coupling component, it also eliminates the light reflection between additional surfaces as well as varying fiber birefringence, which becomes a cause of noise when imaging the deep structure. | 10-20-2011 |
Sidney Chang, Waterloo CA
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20160071301 | Method for Scripting Inter-scene Transitions - A method for authoring and displaying a virtual tour of a three-dimensional space which employs transitional effects simulating motion. An authoring tool is provided for interactively defining a series of locations in the space for which two-dimensional images, e.g., panoramas, photographs, etc., are available. A user identifies one or more view directions for a first-person perspective viewer for each location. For pairs of locations in the series, transitional effects are identified to simulate smooth motion between the pair of locations. The authoring tool stores data corresponding to the locations, view directions and transitional effects for playback on a display. When the stored data is accessed, a virtual tour of the space is created that includes transitional effects simulating motion between locations. The virtual tour created can allow a viewer to experience the three-dimensional space in a realistic manner. | 03-10-2016 |
Stephen Chang, Waterloo CA
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20100235225 | AUTOMATIC DETECTION OF SYSTEMATIC SALES PATTERNS USING AUTOCORRELATION TECHNIQUE - A method, based on autocorrelation techniques, for measuring the relative significance of the systematic versus random components of product sales data. The results of this determination can be used to improve product demand forecast and product seasonal profile determinations. When a product's sales variation is primarily due to systematic patterns, the accuracy of demand predictions and forecasts can be improved by understanding and modeling the underlying pattern. On the other hand, when variations in sales are merely random, these variations can be discounted when determining demand forecasts or product seasonal profiles. | 09-16-2010 |
Stephen Szu Chang, Waterloo CA
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20100153179 | AUTOMATIC CALCULATION OF FORECAST RESPONSE FACTOR - A forecast response factor (RF) determines how quickly product demand forecasts should react to recent changes in demand. When a product sales pattern changes (e.g., a sudden increase in product demand), RF is adjusted accordingly to adjust the forecast responsiveness. The present subject matter provides automatic calculation of the RF, based at least in part on the nature of the product sales (autocorrelation) and the status of recent forecasts (bias). | 06-17-2010 |
20100169165 | METHOD FOR UPDATING REGRESSION COEFFICIENTS IN A CAUSAL PRODUCT DEMAND FORECASTING SYSTEM - An improved method for forecasting and modeling product demand for a product. The forecasting methodology employs a causal methodology, based on multiple regression techniques, to model the effects of various factors on product demand, and hence better forecast future patterns and trends, improving the efficiency and reliability of the inventory management systems. A product demand forecast is generated by blending forecast or expected values of the non-redundant causal factors together with corresponding regression coefficients determined through the analysis of historical product demand and factor information. The improved method provides for the saving and updating of previously calculated intermediate regression analysis results and regression coefficients, significantly reducing data transfer time and computational efforts required for additional regression analysis and coefficient determination. | 07-01-2010 |
Sung Jae Chang, Toronto CA
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20130110266 | METHODS AND SYSTEMS FOR CONTROL OF HUMAN LOCOMOTION | 05-02-2013 |
Sunny Lai-Ming Chang, Markham CA
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20080301509 | METHOD AND APPARATUS FOR TESTING INTEGRATED CIRCUITS BY EMPLOYING TEST VECTOR PATTERNS THAT SATISFY PASSBAND REQUIREMENTS IMPOSED BY COMMUNICATION CHANNELS - Embodiments of an apparatus and method for high-speed testing of a device under test are described herein, where the device under test is coupled to a tester via a limited passband communication channel. A plurality of test vector patterns is generated having characteristics such that when a given test vector pattern is transmitted electrically at a transmission rate via the communication channel, the test vector pattern has a frequency content that is less than the frequency content of a high frequency test vector pattern if the high frequency test vector pattern were to be transmitted electrically at the transmission rate via the communication channel, and such that the frequency content of each test vector pattern when transmitted electrically at the transmission rate via the communication channel falls within the passband associated with the communication channel. | 12-04-2008 |
20090115443 | SYSTEM AND METHOD FOR TESTING INTEGRATED CIRCUIT MODULES COMPRISING A PLURALITY OF INTEGRATED CIRCUIT DEVICES - Embodiments of a system and method for testing an integrated circuit module comprising multiple integrated circuit devices, such as a memory module comprising multiple memory devices for example, is disclosed. Embodiments of the method may be employed to test an integrated circuit device of the integrated circuit module that provides a data strobe signal associated with at least one data signal provided by the same integrated circuit device. A determination of a test outcome for the integrated circuit module may be made after identifying data valid windows for each integrated circuit device, without having to both identify a common sampling window defined by an intersection of the identified data valid windows and verify that such common sampling window meets specification requirements, as may be performed by conventional testers. | 05-07-2009 |
20090306925 | SYSTEMS AND METHODS FOR TESTING INTEGRATED CIRCUIT DEVICES - Embodiments described herein relate to systems and methods for testing integrated circuit devices within an environment that is representative of the application environment in which an integrated circuit device will be used. In at least one embodiment, the testing system comprises a controller coupled to at least one coupling between a processor and a first reference integrated circuit device of an application system, wherein the first controller is configured to: tap the first test data transmitted via the at least one coupling; transmit second test data to a second reference integrated circuit device, wherein the second test data comprises at least a portion of the first test data; receive reference response data from the second reference integrated circuit device in response to the second test data transmitted thereto; transmit the second test data to at least one integrated circuit device under test; and transmit the reference response data to at least one comparator coupled to the at least one integrated circuit device under test. | 12-10-2009 |
20110179324 | TESTING APPARATUS AND METHOD FOR ANALYZING A MEMORY MODULE OPERATING WITHIN AN APPLICATION SYSTEM - A testing apparatus for analyzing a memory module under test operating within an application system, wherein the memory module under test is coupled to a processor of the application system, is disclosed herein. In at least one embodiment, the testing apparatus comprises a first interface for coupling to the application system, a second interface for coupling to a reference memory module, a controller coupled to the first and second interfaces, at least one comparator, and a data logging unit. The data logging unit is configured to receive logging data from the controller and at least one test result from the at least one comparator, and to record, in a memory, at least a subset of the logging data, such that more specific details of memory errors revealed during behavioral testing of memory modules may be identified, examined, and stored for subsequent analysis. | 07-21-2011 |
20120047411 | DETERMINING DATA VALID WINDOWS IN A SYSTEM AND METHOD FOR TESTING AN INTEGRATED CIRCUIT DEVICE - Embodiments of a system and method for testing an integrated circuit device are described herein. Testing is complemented by a determination of characteristics of a data valid window that identifies components of a response data signal from a device under test where the data signal can always be expected to be stable. In at least one embodiment, the method comprises: for each individual data bit region of one or more data bit regions of a second data signal, sampling the second data signal at a plurality of points of the individual data bit region to produce a plurality of sampled values for the second data signal; for each sampled value of the plurality of sampled values, determining whether the sampled value matches an expected bit pattern value corresponding to the sampled value; determining one or more characteristics of the data valid window that defines conditions under which a valid sample can be expected to be taken; and outputting a test outcome based on one or more characteristics of the data valid window. In some embodiments, the second data signal may be sampled at the plurality of points of the individual data bit region concurrently. In some embodiments, the determination of whether each sampled value of the plurality of sampled values matches the expected bit pattern value may be performed concurrently for all of the plurality of sampled values. | 02-23-2012 |
20130058178 | SYSTEM AND METHOD FOR TESTING INTEGRATED CIRCUITS BY DETERMINING THE SOLID TIMING WINDOW - Systems and methods are provided to determine a solid operating timing window for an integrated circuit device, the solid timing window used to determine a key timing index. The key timing index provides an indication of the quality of an integrated circuit over a range of operating conditions. In at least one embodiment a method is provided, the method comprising generating a plurality of combinations of operating parameters, for each of the plurality of combinations of operating parameters setting the respective combination of operating parameters, operating the integrated circuit under the set respective combination of operating parameters, and determining a data valid window for the integrated circuit. The solid operating timing window for the integrated circuit is then determined using the data valid windows for the plurality of combinations of operating parameters, where the solid operating timing window is the logical intersection of the determined data valid windows. | 03-07-2013 |
20140068360 | SYSTEMS AND METHODS FOR TESTING MEMORY - Embodiments of systems and methods for testing memory are disclosed, where memory errors are detected, and, in at least one embodiment, memory units containing errors are prevented from being accessed by applications on a computing system. | 03-06-2014 |
20140211580 | SYSTEMS AND METHODS FOR TESTING AND ASSEMBLING MEMORY MODULES - Embodiments described herein relate to systems and methods for testing and assembling memory modules. In at least one embodiment, the method comprises: assembling a memory module, the memory module comprising at least one memory device having one or more defective memory locations; wherein the assembling comprises storing the data that identifies the one or more defective memory locations on the memory device in a persistent store on the memory module, wherein the memory module comprises a microprocessor and persistent memory associated with the microprocessor, and wherein the persistent store on the memory module comprises the persistent memory associated with the microprocessor. | 07-31-2014 |
20150363309 | SYSTEM AND METHOD OF INCREASING RELIABILITY OF NON-VOLATILE MEMORY STORAGE - Various embodiments are described herein for a system and a method for increasing reliability of a secondary storage device used with a computing system where the secondary storage device contains a memory buffer, a controller, and non-volatile memory. The method may comprise initializing a test of the memory buffer; testing at least one memory block of the memory buffer; discontinuing use of a given memory block of the memory buffer if a defective memory location is detected for the given memory block; and storing test results for the memory buffer. | 12-17-2015 |
Tung Jung Chang, Surrey CA
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20100031583 | WIND DRIVEN DEVICE FOR PREVENTING THE CLOGGING OF A DOWNSPOUT - A wind driven device for preventing the accumulation of debris in a gutter at a mouth of a downspout comprises a drive shaft coupled to the impeller and a bit is disposed at a distal end of the drive shaft. Means for mounting the device on the gutter ensures that the bit is disposed above and spaced-apart from the mouth of the downspout. | 02-11-2010 |
Weilun Chang, North York CA
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20080228253 | Surface modifying macromolecules with high degradation temperatures and uses thereof - The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties. | 09-18-2008 |
20110271961 | SURFACE MODIFYING MACROMOLECULES WITH HIGH DEGRADATION TEMPERATURES AND USES THEREOF - The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties. | 11-10-2011 |
20120220724 | SURFACE MODIFYING MACROMOLECULES WITH HIGH DEGRADATION TEMPERATURES AND USES THEREOF - The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties. | 08-30-2012 |
Weilun Chang, Toronto CA
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20110009799 | ANTITHROMBOGENIC HOLLOW FIBER MEMBRANES AND FILTERS - The invention relates to extracorporeal blood circuits, and components thereof (e.g., hollow fiber membranes, potted bundles, and blood tubing), including 0.005% to 10% (w/w) surface modifying macromolecule. The extracorporeal blood circuits have an antithrombogenic surface and can be used in hemofiltration, hemodialysis, hemodiafiltration, hemoconcentration, blood oxygenation, and related uses. | 01-13-2011 |
20110207893 | THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF - The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties. | 08-25-2011 |
20120148774 | THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF - The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties. | 06-14-2012 |
20150025198 | THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF - The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties. | 01-22-2015 |
Wing Y. Chang, Toronto CA
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20100298406 | Method of suppressing tumour growth - A method of suppressing undesirable cell proliferation, such as tumour growth, is provided comprising the step of increasing the level of PCL2 in target cells. | 11-25-2010 |
Xianglong Chang, Burnaby CA
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20130021323 | Displaying Three-Dimensional Image Data - Systems, methods, apparatus, and computer program products are provided for displaying three-dimensional image data. For example, the position of one or more markers can be tracked. Then, image may be displayed based at least in part on the position of the one or more markers. | 01-24-2013 |
Xue Feng Chang, Burnaby CA
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20110303372 | PROCESS FOR REDUCING SPECIFIC ENERGY DEMAND DURING REFINING OF THERMOMECHANICAL AND CHEMI-THERMOMECHANICAL PULP - A method for producing thermomechanical or chemi-thermomechanical pulp is provided. The process is characterized as having a reduced specific energy demand during refining. The process involves processing a pretreated wood material using one or more high consistency refining steps to produce a first pulp, optionally applying a chelating agent to the first pulp during HC refining to produce a stabilized pulp and treating the first or stabilized pulp with an alkaline-peroxide liquor to produce a treated pulp. The treated pulp is then processed by one or more second low consistency refining steps. Alternatively, the first pulp or stabilized pulp may be divided into a primary and secondary stream. The primary stream is treated with alkaline-peroxide liquor to produce a treated pulp. The secondary stream is processed using a secondary HC refining step to produce a partially refined pulp, and removing latency of the partially refined pulp and the treated pulp is removed in a common location. The treated pulp and the partially treated pulp is processed by one or more than one second low consistency refining step to produce a final pulp. The methods utilize less energy when compared with a method for producing pulp that requires both primary and secondary high consistency refining stages. | 12-15-2011 |
Yee Kang Chang, Markham CA
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20140033177 | MULTI-PLATFORM TEST AUTOMATION ENHANCEMENT - Embodiments of the present invention address deficiencies of the art in respect to host platform configuration for software testing and provide a novel and non-obvious method, system and computer program product for multi-platform test automation. In an embodiment of the invention, a multi-platform test automation data processing system can include a test automation controller enabled for coupling to multiple, different designated host computing platforms. Each of the different designated host computing platforms can host the execution of an application under test. The test automation controller can include a configuration for dispatching test commands to the different designated host computing platforms based upon provided test case documents, topology data and a general function file. In this way, tests can be constructed from a set of test commands without regard to the underlying details of different, target host computing platforms. | 01-30-2014 |
Yi-Chen Chang, Mississauga CA
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20130072283 | Method of Adapting a Class II Game to Provide the Play Characteristics of a Class III Game - Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award. | 03-21-2013 |
20130303255 | METHOD OF ADAPTING A CLASS II GAME TO PROVIDE THE PLAY CHARACTERISTICS OF A CLASS III GAME - Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award. | 11-14-2013 |
20140120998 | METHOD OF ADAPTING A CLASS II GAME TO PROVIDE THE PLAY CHARACTERISTICS OF A CLASS III GAME - Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award. | 05-01-2014 |
Yi-Lu Chang, Toronto CA
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20150060776 | ORGANIC ELECTROLUMINESCENT DEVICE WITH ENERGY HARVESTING - Provided herein is an organic light-emitting device and a method of construction thereof. The organic light-emitting device comprises an anode, a cathode, and at least two light-emitting layers located between the anode and the cathode. At least one of the light-emitting layers comprises a host compound having distributed therein a first compound capable of phosphorescent emission at room temperature and a second compound capable of phosphorescent emission at room temperature that has a peak emission wavelength at least 10 nm higher than the first compound. | 03-05-2015 |
Young Ki Chang, Nova Scotia CA
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20120195496 | VARIABLE RATE SPRAYER SYSTEM AND METHOD OF VARIABLY APPLYING AGROCHEMICALS - Systems, methods and computer-readable media are provided for controlling a variable-rate sprayer for precision agriculture. Highly efficient digital image processing enables rapid and reliable control of the variable rate sprayer. In one embodiment, image processing uses only a subset of luminance, hue, saturation and intensity textural features to provide rapid image recognition. In another embodiment, an image is decomposed into RGB components and a G is ratio determined. For example, the textural method is useful in growing season where colour differentiation is difficult. The G ratio method is useful in early spring and late fall where colour differentiation is possible. These rapid computationally light methods enable a mobile sprayer system to identify crop or field conditions in real-time and to dispense an appropriate amount of agrochemical in a specific section of the sprayer boom where the target has been detected as the mobile sprayer advances. | 08-02-2012 |
Yuen Yuen Chang, York CA
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20100154979 | PANEL OF A BALL FOR A BALL GAME, A BALL, AND METHODS OF MAKING THE SAME - The present invention provides a panel of the ball for ball game, said panel has the folding portion and the opposite folding portion on its periphery, which are opposite to each other and made of the same continuous material. The folding portion and the opposite folding portion of said leather panels have the good engaging property and difficult to separate with each other during usage because they are made of the same material. The panel has simple manufacturing process and low production cost, making the ball for ball game comprising above panels have good using properties, simple manufacturing process and low production cost. | 06-24-2010 |
20100160096 | PANEL OF A BALL FOR A BALL GAME, A BALL, AND METHODS OF MAKING THE SAME - The present invention provides a panel of the ball for ball game, said panel has the folding portion and the opposite folding portion on its periphery, which are opposite to each other and made of the same continuous material. The folding portion and the opposite folding portion of said leather panels have the good engaging property and difficult to separate with each other during usage because they are made of the same material. The panel has simple manufacturing process and low production cost, making the ball for ball game comprising above panels have good using properties, simple manufacturing process and low production cost. | 06-24-2010 |