Roberts, CA
Bruce Roberts, Calgary CA
Patent application number | Description | Published |
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20120318512 | THERMALLY ASSISTED GRAVITY DRAINAGE (TAGD) - A system and method for producing bitumen or heavy oil from a clastic or carbonate reservoir. The mobility of the bitumen or heavy oil is increased by conductive heating to reduce the viscosity. The bitumen or heavy oil is heated to temperatures below the thermal cracking temperature of the bitumen or heavy oil. As the bitumen or heavy oil is produced, evolved gases or evaporated connate water or both form a gas chamber to at least partially the voids left by the produced bitumen or heavy oil. | 12-20-2012 |
20150047833 | THERMALLY ASSISTED GRAVITY DRAINAGE (TAGD) - A method for producing bitumen or heavy oil from a reservoir, the method comprising: defining at least one lateral section of the reservoir for placement of patterns of heater wells above a producer well; placing the producer well at a substantially centered location at or adjacent to the bottom of the reservoir within each of the lateral sections; placing a triangular pattern of heater wells above the producer well; placing a regular or non-regular pentagonal pattern of heater wells, or a portion thereof, at or above the triangular pattern of heater wells; heating the reservoir with the triangular and pentagonal patterns of heater wells to conductively heat the reservoir and reduce the viscosity of the bitumen or heavy oil; and producing bitumen or heavy oil with the producer well. | 02-19-2015 |
Bruce Edmunds Roberts, Alberta CA
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20140190691 | METHOD OF SELECTING A PRODUCTION WELL LOCATION IN A HYDROCARBON SUBSURFACE FORMATION - An in situ process for treating a hydrocarbon containing formation is provided. A method for treating a tar sands formation includes providing heat from one or more heaters to a hydrocarbon containing layer in the formation such that at least some hydrocarbons in the layer are mobilized; and producing at least some of the hydrocarbons through one or more production wells located in the hydrocarbon containing layer. At least one of the production wells is located at a selected depth in the hydrocarbon containing layer so that hydrocarbons of a selected quality are produced from a part of the hydrocarbon containing layer. | 07-10-2014 |
Bruce Edmunds Roberts, Calgary CA
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20100126727 | IN SITU RECOVERY FROM A HYDROCARBON CONTAINING FORMATION - An in situ process for treating a hydrocarbon containing formation is provided. The process may include providing heat from one or more heaters to at least a portion of the formation. The heat may be allowed to transfer from the one or more heaters to a part of the formation such that heat from the one or more heat sources pyrolyzes at least some hydrocarbons within the part. Hydrocarbons may be produced from the formation. | 05-27-2010 |
Byron Roberts, Prince George CA
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20150035664 | AIR SUSPENSION PRESSURE DISPLAY - A system for displaying the relative air pressure in an air suspension system for a vehicle comprises an intake line connecting from the air suspension system to a manifold. One or more pressure switches are connected to the manifold. A corresponding light is attached to each of the pressure switches. When the pressure within the manifold reaches preconfigured levels, one of the pressure switches is closed, and a corresponding light is illuminated. The lights are located on the side of the vehicle such that they can be easily seen. | 02-05-2015 |
Colin Roberts, Naughton CA
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20130161167 | Switching Device with Auto-Correction of Switching Member - Switching devices for controlling a load from multiple locations each monitor the position of the device's switch member, and generate signals in response to a change of the member from the ‘on’ position to the ‘off’ position, and vice versa. Upon detecting such a change, an ‘on’ or ‘off’ signal is sent to each other switching device, which automatically updates the position of its switching member to match that which was manually actuated by the user. A load connected to at least one of the switching devices is accordingly switched between an energized and non-energized state by making or breaking continuity in the load circuit at that switching device. By automatically updating the switching member positions among all the devices, a user can visually make an accurate determination of the load circuit status at any given time based on the current position of any switching member among the devices. | 06-27-2013 |
Colin Roberts, Ottawa CA
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20100193534 | COMPOST COLLECTION BIN - A sealable bin for collecting waste biomass in a household kitchen comprising a container for receiving biomass, a sealable lid for placement over the container, venting means for circulating air within the waste biomass, and a handle. Venting means is contained in the lid. The inside surfaces of the container have a series of parallel features comprising either channels or projections in order create pathways into and out of the container for aeration of the biomass and dehumidifying of the biomass so as to deter anaerobic decomposition and odours. | 08-05-2010 |
Colin Peter Roberts, Ottawa CA
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20130235576 | UNIFORM LIGHTING SYSTEM - A light bar for illuminating a surface that is substantially perpendicular to the light bar includes an elongated housing extending along an edge of the surface to be illuminated. The housing has a wall adjacent the surface to be illuminated, and at least portions of that wall are transparent. A series of light emitting diodes (LEDs) are mounted within the housing and spaced along the length of the housing for illuminating the surface, and a connector couples the LEDs to an electrical power source for energizing the LEDs to produce light that illuminates the surface. | 09-12-2013 |
Craig Roberts, Vernon CA
Patent application number | Description | Published |
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20090114408 | Method and apparatus for vertical preloading using containers for fluid - The present invention is an apparatus for compacting ground using fluids stored in containers placed on the ground. The fluid containers may include a closely packed array of vertically aligned tubes arranged parallel to one another. Their base ends may be sealed and rest on the ground surface to be compacted. Their opposite upper ends may be either open or have a form of removable apertured lid or cap thereon to assist in filling of fluid into the containers. The closely packed array of tubes may be interlocked to one another for support and stability. | 05-07-2009 |
Danielle V. Roberts, Calgary CA
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20090107730 | DRILL BITS AND TOOLS FOR SUBTERRANEAN DRILLING - A drill bit having a bit body includes a blade face surface on at least one blade extending longitudinally and radially outward over a face of the bit body. The blade face surface of the at least one blade includes a contact zone and a sweep zone. The sweep zone rotationally trails the contact zone with respect to a direction of intended bit rotation about a longitudinal axis of the bit body provides reduce rubbing contact when engaging with a subterranean formation. | 04-30-2009 |
20100012392 | SHANK STRUCTURE FOR ROTARY DRILL BITS - A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed. | 01-21-2010 |
Deborah Roberts, Kelowna CA
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20130045893 | APPARATUSES FOR DETERMINING WHETHER A SUBSTANCE IS CARRIED IN A FLUID - Apparatuses for determining whether a substance is carried in a fluid are disclosed. One such apparatus includes a body having: a plurality of spaced-apart capture surfaces configured to contact the fluid and capture the substance from the fluid; and a plurality of fluid guiding surfaces spaced apart by a predetermined distance from respective at least portions of respective ones of the plurality of capture surfaces. Another such apparatus includes: a fluid conduit to direct flow of the fluid; and at least one element removably positioned in the fluid conduit and having at least one capture surface configured to contact the fluid and capture the substance from the fluid. | 02-21-2013 |
Diane E. Roberts, Winnipeg CA
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20080226653 | Inhibition of Platelet Aggregation - The present invention relates generally to the field of hyperglycemia-induced complications. More particularly, it concerns methods and compositions for the treatment and prevention of microvascular complications associated with diabetes. In one embodiment, the present invention provides a method of inhibiting hyperglycemia-induced platelet activation in a subject by administering to the subject an effective amount of a TRPC6 inhibitor. | 09-18-2008 |
Douglas Gordon Roberts, Richmond CA
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20090080400 | RADIO GATEWAY SYSTEM AND METHOD FOR INTERFACING A RADIO SYSTEM AND AN IP NETWORK - A radio gateway system and method for interfacing one or more radio systems and a packet network. The system comprises a plurality of gateways, each gateway including a radio interface port, a protocol converter and packet interface. The gateways convert audio and signaling from the radio system into packet signals in a generic protocol. The gateways also convert packet signals in the generic protocol into audio and signaling in a protocol understandable by a respective radio system. | 03-26-2009 |
20090168685 | INTERNET PROTOCOL RADIO DISPATCH SYSTEM AND METHOD - A method and system for dispatching calls using a packet network is disclosed. The use of distributed call management modules, enables various communication systems, such as RF and PSTN systems, to communicate with each other over the IP network. Audio devices from the various communication systems are each assigned an IP multicast group. Distributed call management modules convert signals from the audio devices into IP packets and transmit the IP packets to designated IP multicast groups over the IP network. | 07-02-2009 |
20100165924 | RADIO INTEROPERABILITY SYSTEM AND METHOD - A method, system and memory are provided for enabling interoperability. A communication session between different communication systems, such as radio systems, operating using different protocols is initiated by receiving a scenario identifier from one of the user devices. An interoperability server receives the scenario identifier and accesses interoperability data to obtain the connection information corresponding the scenario matching the scenario identifier. The data includes scenarios for communication sessions and the connections required for each scenario. Once the interoperability server obtains the connection information, the communication session is initiated. | 07-01-2010 |
20120218126 | Systems and Method for Controlling Preemption of a Traffic Signal - A priority control unit is provided for use with light-based and GPS-based traffic control priority systems. The priority control unit includes a light emitter subsystem that is configured to emit pulses of light. The pulses of light encode a priority request for activating preemption of a traffic signal by a light-based traffic control priority system. The priority control unit also includes a GPS-based subsystem that is configured to transmit a priority request by radio waves. The priority request from the GPS-based subsystem is for activating preemption of a traffic signal by a GPS-based traffic control priority system. A switch is coupled to the light emitter subsystem and to the GPS-based subsystem. The switch simultaneously activates both the light emitter subsystem and the GPS-based subsystem for transmitting priority requests in response to user control. In another embodiment, the priority control unit further includes a broadcast based subsystem for transmitting priority requests. | 08-30-2012 |
20130114493 | INTERNET PROTOCOL RADIO DISPATCH SYSTEM AND METHOD - A method and system for dispatching calls using a packet network is disclosed. The use of distributed call management modules, enables various communication systems, such as RF and PSTN systems, to communicate with each other over the IP network. Audio devices from the various communication systems are each assigned an IP multicast group. Distributed call management modules covert signals from the audio devices into IP packets and transmit the IP packets to designated IP multicast groups over the IP network. | 05-09-2013 |
Drew Roberts, Baden CA
Patent application number | Description | Published |
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20130198364 | METHOD OF DETERMINING HTTP PROCESS INFORMATION - A method of determining http process information while executing a secure web application which redirects to a separate an unsecure web application to determine the information and redirect the information back to the secure web application. An example method includes redirecting the web browser software to an unsecure web application for obtaining the information by the computer during execution of the secure application, executing the unsecure web application using the web browser software by the computer to obtain the information about the http process, and redirecting the web browser software to provide the information from the unsecure web application to the secure web application by the computer. | 08-01-2013 |
20150278793 | Electronic Payments - A template version of check information is obtained and an image of a check produced from the template for a transaction of a payor. The image is transmitted to a payee and the payee uses the image to electronically deposit the image for payment with the payee's financial institution as if the image came from a physical check obtained from the payor. | 10-01-2015 |
Edward P.l. Roberts, Calgary CA
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20140231355 | TREATMENT OF CONTAMINATED LIQUIDS - Apparatus and method for the treatment of a contaminated liquid to remove contaminants from said liquid. The apparatus comprises a bed of a carbon based adsorbent material capable of electrochemical regeneration, at least one pair of electrodes operable to pass an electric current through said bed to regenerate the adsorbent material, and means to admit contaminated liquid into said bed to contact said adsorbent material at a flow rate which is sufficiently high to pass the liquid through the bed but below the flow rate required to fluidise the bed of adsorbent material. | 08-21-2014 |
Gary Roberts, Greely CA
Patent application number | Description | Published |
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20090096572 | BREACH CONTROL BARRIER SYSTEM - This invention relates to the field of personnel access control and more particularly, to deployable/stowable fabric-based barriers for controlling or restricting access of individuals to specific physical areas. This allows security personnel at a screening station, for example, to quickly react to an “intruder” who is bypassing the screening area by quickly and safely closing the passageway and/or walkways between a screening area and a sterile area. Recognizing that different facilities and different applications place more emphasis on some design requirements than others, three barrier systems were designed to increase overall suitability for different facilities: Drop Down BCBS, Pop Across BCBS, and Pop Up BCBC. | 04-16-2009 |
Gordon Roberts, Montreal CA
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20130300483 | METHODS AND DEVICES RELATING TO TIME-VARIABLE SIGNAL PROCESSING - Time-Mode Signal Processing (TMSP) offers a means for offsetting some of the challenges for analog circuit designs when exploiting CMOS circuit processes designed for digital applications. It would therefore be beneficial to provide a digital method for the storage, addition and subtraction of Time-Mode variables as these offer significant benefit to providing TMSP techniques and expanding their exploitation within devices, systems, and applications. Whilst driven by CMOS process challenges the TM circuits outlined may exploit essentially any digital circuit technology since they are based upon delay. The inventors present an approach to TM variables wherein a switched delay unit is exploited and adopted such that the instantaneous phase difference between two rising signal edges can be latched and used to perform various arithmetic operations. Beneficially, the technique allows analog sampled-data signal processing to be implemented within digital circuitry. | 11-14-2013 |
Gordon Roberts, Montreal West CA
Patent application number | Description | Published |
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20120288044 | PHASE / FREQUENCY SYNTHESIS USING PERIODIC SIGMA-DELTA MODULATED BIT-STREAM TECHNIQUES - A method and a circuit are provided for providing phase or frequency synthesis using sigma-delta modulation bit-stream techniques in which data is encoded utilizing sigma-delta modulation and then digital-to-time conversion (DTC) or digital-to-frequency conversion (DFC). In some embodiments this encoded data stream is further subjected to phase or frequency domain filtering, which in some embodiments is carried out by a higher-order phase-locked loop (PLL). | 11-15-2012 |
20160084705 | SENSOR SYSTEMS AND METHODS FOR ANALYTE DETECTION - Systems for analyte detection are disclosed. The system includes absorption channels positioned along a surface of an object. The absorption channels are configured to trap an analyte. The system further includes a sensor embedded in the object and configured to detect the presence of the analyte. The sensor includes a light source configured to transmit light and a detector configured to detect a change in an intensity of light transmitted by the light source. The sensor further includes a cable configured to connect the light source to the detector, wherein the cable comprises detection regions, and wherein the detection regions include a portion of the cable exposed to the analyte in the absorption channel. | 03-24-2016 |
20160084810 | SYSTEMS FOR DETECTING TARGET CHEMICALS AND METHODS FOR THEIR PREPARATION AND USE - Systems and methods for detecting target chemicals are disclosed. A system includes a chemical sensor configured to filter light. The chemical sensor includes a referencing arm configured to output light at a first intensity level and a sensing arm sensitive to a target chemical. The sensing arm is configured to output light at a second intensity level. A difference between the first intensity level and the second intensity level indicates a presence of the target chemical. | 03-24-2016 |
Gordon W. Roberts, Montreal-West CA
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20090121749 | Generation of an Analog Gaussian Noise Signal Having Predetermined Characteristics - The present invention relates to a method and system for providing an analog Gaussian noise signal having the predetermined probability distribution function, bandwidth and center frequency. A band-limited digital noise signal indicative of a Gaussian noise signal having a predetermined Gaussian probability distribution function is ΣΔ modulated generating a pulse-density modulated 1-bit sequence representing a Gaussian noise signal having a predetermined probability distribution function, bandwidth and center frequency. Using an analog low-pass filter the pulse-density modulated 1-bit sequence is then converted into a respective analog Gaussian noise signal having the predetermined probability distribution function, bandwidth and center frequency. The method and system are successfully employed in numerous applications such as in histogram testing and probabilistic digitization. | 05-14-2009 |
20090220240 | HIGH-SPEED BANDPASS SERIAL DATA LINK - The present invention relates to a method and system for high-speed bandpass serial data communication. A driver receives at least one data signal and generates a bandpass data signal for transmission through a bandpass waveguide interconnect. The bandpass data signal is launched into the bandpass waveguide interconnect using a first adaptor and extracted therefrom after transmission using a second adaptor. A receiver connected to the second adaptor recovers the at least one data signal from the extracted bandpass data signal. A dispersion compensation circuit receives one of the at least one data signal and the bandpass data signal and information indicative of a phase response of the bandpass waveguide interconnect and dispersion compensates the one of the at least one data signal and the bandpass data signal by compensating the phase response of the bandpass waveguide interconnect. | 09-03-2009 |
Isabelle Roberts, Orono CA
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20130174683 | Robot Arm - There is provided a robot arm link comprising a base, a first section rotably coupled to the base, a second section pivotably coupled to the first section and a third section attached to the second section and having a fixed portion and a movable portion, the movable portion coupled to the fixed portion for movement between first and second portions, the movable portion having an attachment plate for attachment to another robot arm link. The links can be used to construct an arm with multiples of three degrees of movement. For example, three links are joined together and mounted on a rotation base and terminated with a pivot or wrist joint to provide a total of 11 degrees of movement. | 07-11-2013 |
Ivor John Roberts, Rockwood CA
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20140154053 | CARBON SEAL ASSEMBLY - A carbon seal assembly comprises an annular member adapted to be secured to a structure. An annular seal runner is sealingly mounted to a shaft to rotate therewith, with the seal runner being made of a material complementary to that of the annular member for magnetic attraction therebetween. An annular carbon seal element is mounted to the annular seal runner to rotate therewith and positioned in a gap between the annular member and the annular seal runner, the annular carbon seal element having an annular wear surface abutting against a face of the annular member. A cross-sectional area of the annular carbon seal element increases as the axial dimension of the annular seal runner decreases for at least a part of the seal. | 06-05-2014 |
Joy Roberts, Coquitlam CA
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20120328967 | FUEL CELL WITH SELECTIVELY CONDUCTING ANODE COMPONENT - By incorporating a selectively conducting component in electrical series with the anode components in a solid polymer fuel cell, degradation during startup and shutdown can be reduced. As a result, the startup and shutdown procedures can be simplified and consequently certain system apparatus may be omitted. The anode does not need to be rapidly purged with hydrogen on startup or with air on shutdown. Additionally, the auxiliary load usually employed during such purging is not required. | 12-27-2012 |
20130017471 | FUEL CELL WITH SELECTIVELY CONDUCTING ANODE COMPONENT - To reduce degradation of a solid polymer fuel cell during startup and shutdown, a selectively conducting component is incorporated in electrical series with the anode components in the fuel cell. The component is characterized by a low electrical resistance in the presence of hydrogen or fuel and a high resistance in the presence of air. High cathode potentials can be prevented by integrating such a component into the fuel cell. A suitable selectively conducting component can comprise a layer of selectively conducting material, such as a metal oxide. | 01-17-2013 |
20130236807 | DURABLE FUEL CELL WITH PLATINUM COBALT ALLOY CATHODE CATALYST AND SELECTIVELY CONDUCTING ANODE - The degradation associated with repeated startup and shutdown of solid polymer electrolyte fuel cells comprising PtCo alloy cathode catalysts can be particularly poor. However, a marked and unexpected improvement in durability is observed as a result of incorporating a selectively conducting component in electrical series with the anode components in the fuel cell. | 09-12-2013 |
20130236812 | DURABLE FUEL CELL WITH PLATINUM COBALT ALLOY CATHODE CATALYST AND SELECTIVELY CONDUCTING ANODE - The degradation associated with repeated startup and shutdown of solid polymer electrolyte fuel cells comprising PtCo alloy cathode catalysts can be particularly poor. However, a marked and unexpected improvement in durability is observed as a result of incorporating a selectively conducting component in electrical series with the anode components in the fuel cell. | 09-12-2013 |
20140030625 | VOLTAGE REVERSAL TOLERANT FUEL CELL WITH SELECTIVELY CONDUCTING ANODE - Use of a selectively conducting anode component in solid polymer electrolyte fuel cells can reduce the degradation associated with repeated startup and shutdown, but unfortunately can also adversely affect a cell's tolerance to voltage reversal. Use of a carbon sublayer in such cells can improve the tolerance to voltage reversal, but can adversely affect cell performance. However, employing an appropriate selection of selectively conducting material and carbon sublayer, in which the carbon sublayer is in contact with the side of the anode opposite the solid polymer electrolyte, can provide for cells that exhibit acceptable behaviour in every regard. A suitable selectively conducting material comprises platinum deposited on tin oxide. | 01-30-2014 |
20140038075 | METHOD FOR OPERATING FUEL CELLS WITH PASSIVE REACTANT SUPPLY - A method for operating a passive, air-breathing fuel cell system is described. In one embodiment, the system comprises one or more fuel cells, and a closed fuel plenum connected to a fuel supply. In some embodiments of the method, the fuel cell cathodes are exposed to ambient air, and the fuel is supplied to the anodes via the fuel plenum at a pressure greater than that of the ambient air. | 02-06-2014 |
20150325859 | FUEL CELL WITH SELECTIVELY CONDUCTING ANODE - Use of a selectively conducting anode component in solid polymer electrolyte fuel cells can reduce the degradation associated with repeated startup and shutdown, but can also adversely affect a cell's tolerance to voltage reversal along with its performance. It was shown that these adverse affects can be mitigated against in certain ways. However, improved results can be obtained by employing a selectively conducting component which comprises a mixed layer of a selectively conducting material and carbon. The mixed layer contacts the side of the anode opposite the solid polymer electrolyte. | 11-12-2015 |
Joy A. Roberts, Coquitlam CA
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20110070511 | COOLING SUBSYSTEM FOR AN ELECTROCHEMICAL FUEL CELL SYSTEM - Improvements in startup time for an electrochemical fuel cell system from freezing and sub-freezing temperatures may be observed by minimizing the coolant volume in the coolant subsystem. In particular, this may be accomplished by having a two pump—dual loop cooling subsystem. During startup, one pump directs coolant through a startup coolant loop and after either the fuel cell stack or the coolant temperature reaches a predetermined threshold value, coolant from a main or standard coolant loop is then directed to the fuel cell stack. In an embodiment, coolant from the standard loop mixes with coolant in the startup loop after the predetermined threshold temperature is reached. | 03-24-2011 |
Kim Roberts, Nepean CA
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20080226305 | INTEGRATED OPTICAL WAVEFORM MODULATOR - A method of modulating an optical carrier. A target carrier modulation is computed based on an input data signal. An effective length of an optical modulator is then controlled based on the target carrier modulation. | 09-18-2008 |
20090148164 | SIGNAL EQUALIZER IN A COHERENT OPTICAL RECEIVER - A signal equalizer for compensating impairments of an optical signal received through a link of a high speed optical communications network. At least one set of compensation vectors are computed for compensating at least two distinct types of impairments. A frequency domain processor is coupled to receive respective raw multi-bit in-phase (I) and quadrature (Q) sample streams of each received polarization of the optical signal. The frequency domain processor operates to digitally process the multi-bit sample streams, using the compensation vectors, to generate multi-bit estimates of symbols modulated onto each transmitted polarization of the optical signal. The frequency domain processor exhibits respective different responses to each one of the at least two distinct types of impairments. | 06-11-2009 |
20090304391 | OPTICAL COMMUNICATIONS SYSTEM HAVING CHROMATIC DISPERSION AND POLARIZATION MODE DISPERSION COMPENSATION - Described are an optical communications system and a method that allow for compensation of chromatic dispersion and polarization mode dispersion imparted to a communications signal propagating through an optical link. The system is based on a cost-effective optical transport architecture that accommodates baud rates exceeding 15 Gbaud and eliminates the need for costly optical dispersion compensators. Compensation for polarization mode dispersion is performed at the receiver using nonlinear processing. Advantageously, direct detection modulation using inexpensive electro-optic system components can be used in place of more costly and complex coherent and differential modulation formats. Digital filtering can be performed at the transmitter and the input signal can be inverted based on the nonlinearity of the transmitter electro-optic components. Consequently, the bandwidth and linearity requirements for the transmitter electro-optic components are relaxed, and cost reductions are realized. | 12-10-2009 |
20110243573 | SIGNAL EQUALIZER IN A COHERENT RECEIVER - A signal equalizer for compensating impairments of an optical signal received through a link of a high speed optical communications network. At least one set of compensation vectors are computed for compensating at least two distinct types of impairments. A frequency domain processor is coupled to receive respective raw multi-bit in-phase (I) and quadrature (Q) sample streams of each received polarization of the optical signal. The frequency domain processor operates to digitally process the multi-bit sample streams, using the compensation vectors, to generate multi-bit estimates of symbols modulated onto each transmitted polarization of the optical signal. The frequency domain processor exhibits respective different responses to each one of the at least two distinct types of impairments. | 10-06-2011 |
Kim B. Roberts, Ottawa CA
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20130089341 | MINIMUM VARIANCE CARRIER RECOVERY - Accordingly, an aspect of the present invention provides a method of data symbol recovery. A respective probabilistic phase error is calculated for each of a plurality of data symbol estimates. A phase rotation is calculated based on the probabilistic phase error estimates, using a filter function, and the phase rotation applied to at least one data symbol estimate to generate a corresponding rotated symbol estimate. Each rotated symbol estimate is processed to generate corresponding decision values of each data symbol. | 04-11-2013 |
20130089342 | MINIMUM VARIANCE CARRIER RECOVERY WITH INCREASED PHASE NOISE TOLERANCE - A method of data symbol recovery. An optical signal is modulated by a transmitter using a modulation scheme comprising a symbol constellation having a predetermined asymmetry and detected at a receiver. Phase error estimates corresponding to data symbol estimates detected from the received optical signal are calculated. A phase rotation is calculated based on the phase error estimates, using a filter function, and the phase rotation applied to at least one data symbol estimate to generate a corresponding rotated symbol estimate. The phase error estimates model the asymmetry of the symbol constellation, such that the computed phase rotation can compensate phase noise that is greater than one decision region of the symbol constellation. | 04-11-2013 |
20130259493 | SIGNAL FRAMING IN A COHERENT OPTICAL RECEIVER - A method and system for a estimating a most likely location of a periodic SYNC burst within an optical signal received through an optical communications system. A cross-correlation is calculated between a multi-bit digital signal derived from the optical signal and a known symbol sequence of the SYNC burst. The cross-correlation is processed in at least one sub-block to identify a candidate sub-block in which the SYNC burst is most likely located. The candidate sub-block is then further analysed to estimate a location of the SYCN burst. | 10-03-2013 |
20140133865 | OPTICAL MODULATION SCHEMES HAVING REDUCED NONLINEAR OPTICAL TRANSMISSION IMPAIRMENTS - A method of transmitting a data signal using an optical transmitter of an optical communications system. The optical transmitter is configured to modulate an optical carrier in successive signalling intervals to generate an optical signal. A modulation scheme is provided which comprises a multi-dimensional symbol constellation. The modulation scheme is designed such that an average degree of polarization of a modulated optical signal output from the optical transmitter has a first value when averaged across a first signalling interval, and has a second value when averaged across more than one and fewer than 100 signalling intervals. The second value is less than 10 percent of the first value. During run-time, an encoder of the optical transmitter encoding a data signal to be transmitted as symbols of the constellation, and a modulator of the optical transmitter modulating available dimensions of the optical carrier in accordance with the symbols. | 05-15-2014 |
20140169793 | FREQUENCY DOMAIN MULTIPLEX OPTICAL TRANSMISSION - A method of transmitting a data signal in an optical communications system. The method includes processing the data signal to generate an analog drive signal, wherein the processing comprises applying a first non-linear operation such that frequency components of the drive signal lay in at least two separated spectral bands. An optical carrier light is modulated using the analog drive signal. | 06-19-2014 |
20140369680 | VARIABLE SPECTRAL EFFICIENCY OPTICAL MODULATION SCHEMES - A method of transmitting a data signal using an optical transmitter of an optical communications system. A first encoder processes an N-bit input vector in accordance with a first mapping to generate a corresponding M-bit data stream. A Forward Error Correction encoder processes the M-bit data stream in accordance with a predetermined FEC encoding scheme to generate an encoded signal. A constellation mapper maps the encoded signal to symbol values in accordance with a predetermined modulation scheme to generate a corresponding symbol stream. A modulator modulates a carrier light in accordance with the encoded symbol stream to generate an optical signal for transmission through the optical communications system. The first mapping can be adjusted to maximize performance of the optical communications system. | 12-18-2014 |
20150033092 | CHAIN ENCODING AND DECODING OF HIGH SPEED SIGNALS - A method of recovering a value of a symbol received through an optical communications system. A multi-bit estimate of the symbol is subdivided into a first part and a second part, each part including at least one respective bit of the estimate. A most likely value of the first part is detected. The most likely value of the first part is processed using a Forward Error Correction (FEC) decoder to generate a corrected first part value, which is used to detect a most likely value of the second part. The most likely value of the second part is then processed by the FEC decoder to generate a corrected second part, which is combined with the corrected first part to recover the value of the symbol. | 01-29-2015 |
Lloyd Roberts, Vernon CA
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20090114408 | Method and apparatus for vertical preloading using containers for fluid - The present invention is an apparatus for compacting ground using fluids stored in containers placed on the ground. The fluid containers may include a closely packed array of vertically aligned tubes arranged parallel to one another. Their base ends may be sealed and rest on the ground surface to be compacted. Their opposite upper ends may be either open or have a form of removable apertured lid or cap thereon to assist in filling of fluid into the containers. The closely packed array of tubes may be interlocked to one another for support and stability. | 05-07-2009 |
Matthew J.h. Roberts, Haliburton CA
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20120043052 | Geothermal Energy Transfer System - An energy transfer unit for a geothermal system includes an outer housing. A heat exchanger is located within the housing. An inlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid to the heat exchanger and an outlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid from the heat exchanger. | 02-23-2012 |
20130075067 | ENERGY TRANSFER UNIT - An energy transfer wilt suitable for a geothermal heating system is formed from a plurality of modules. Each module has a frusto conical baffle overlying a heat exchange core to direct fluid radial across the core. A chimney is provided centrally in the baffle to promote radial flow. The modules may be located within a housing and ports are provide to allow flow in to the housing adjacent each of the cores. | 03-28-2013 |
20150233608 | Geothermal Energy Transfer System - An energy transfer unit for a geothermal system includes an outer housing. A heat exchanger is located within the housing. An inlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid to the heat exchanger and an outlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid from the heat exchanger. | 08-20-2015 |
Michael Albert Roberts, Toronto CA
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20120060032 | SYSTEM, METHOD AND COMPUTER PRODUCT FOR SENDING ENCRYPTED MESSAGES TO RECIPIENTS WHERE THE SENDER DOES NOT POSSESS THE CREDENTIALS OF THE RECIPIENT - A system for encrypting and decrypting messages using a browser in either a web or wireless device or secure message client software for transmission to or from a web server on the Internet connected to an email server or message server for the situation where the sender does not possess the credentials and public key of the recipients. The encryption and decryption is conducted using a standard web browser on a personal computer or a mini browser on a wireless device, or message client software on either a personal computer or wireless devices such that messages transmitted to the web or wireless browser or message client software can be completed and encrypted and signed by the user such that encrypted and signed data does not require credentials and public key of the recipients. A method for delivering and using private keys to ensure that such keys are destroyed after use is also provided. A method of transmitting encrypted messages to a web or wireless browser or message client and decrypting and verifying such messages by recipients who do not possess or who are not enrolled in a PKI and do not have private keys. A method for authenticating the sender/user of the browser, and a method for accessing or generating public and private keys for encrypting and decrypting messages for recipients who are not enrolled in a public key infrastructure. | 03-08-2012 |
Michael Patrick Roberts, St. Jacob'S CA
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20080263227 | Background synchronization - Systems, methods and computer program products for determining a schedule for synchronizing a server and a client are described herein. The method operates by tracking user usage of the client to develop usage patterns. A sync schedule is generated using the usage patterns, where the sync schedule enhances at least one of sync usefulness and sync transparency. The server and client are synchronized according to the sync schedule. More particularly, a sync fitness measure for an interval t is determined. The sync fitness measure is based on at least one of (a) sync transparency; and (b) sync usefulness. It is determined whether the sync fitness measure satisfies a threshold. If the sync fitness measure satisfies the threshold, then the server and client are synchronized during interval t. | 10-23-2008 |
20120131182 | Background synchronization - Systems, methods and computer program products for determining a schedule for synchronizing a server and a client are described herein. The method operates by tracking user usage of the client to develop usage patterns. A sync schedule is generated using the usage patterns, where the sync schedule enhances at least one of sync usefulness and sync transparency. The server and client are synchronized according to the sync schedule. More particularly, a sync fitness measure for an interval t is determined. The sync fitness measure is based on at least one of (a) sync transparency; and (b) sync usefulness. It is determined whether the sync fitness measure satisfies a threshold. If the sync fitness measure satisfies the threshold, then the server and client are synchronized during interval t. | 05-24-2012 |
Mike Roberts, Calgary CA
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20110074780 | Level set segmentation of volume data - A method for segmenting a volume dataset is provided. During initialization a level set field within a volume dataset is initialized and an initial set of active voxels is determined in dependence upon the initialized level set field. In an iteration process the level set field for the set of active voxels is updated followed by updating of the set of active voxels. The iteration is continued until the number of active voxels is less than a predetermined threshold. Level set segmentation data are then determined in dependence upon the level set field and provided for, for example, graphical display or storage. | 03-31-2011 |
20110299745 | PARALLEL PROCESS FOR LEVEL SET SEGMENTATION OF VOLUME DATA - A parallelized sparse field method for segmenting a volume dataset is provided. Using a processor a level set field within a multi-dimensional dataset comprising a plurality of voxels is initialized in parallel operation. The multi-dimensional dataset is indicative of an object. An initial set of active voxels is then generated in parallel operation in dependence upon the initialized level set field. New active voxels are determined in parallel operation. Duplicate active voxels are then removed in parallel operation, followed by compacting the active voxels in parallel operation. The process is repeated until a quantitative stopping criterion is met and level set segmentation data indicative of a feature of the object are determined in dependence upon the level set field. | 12-08-2011 |
Patrick James Roberts, Chilliwack CA
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20110010909 | PIN PULLER - A pin puller includes a coupler to connect a pull rod to an end of a pin. A follower attaches to a tail end of the pin. The coupler may comprise a pair of mating shells having features to engage the pin and pull rod. An actuator is configured to apply tension to the pull rod. The pin puller may be used to remove and install pins and associated bushings in truck suspensions and other applications. | 01-20-2011 |
Phillip Roberts, Waterloo CA
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20130007247 | METHOD OF CUSTOMIZING A STANDARDIZED IT POLICY - A system and method are described herein for standardizing an IT policy that is used to configure devices operating on a network. An IT policy can be generated that applies to a group of users or to one or more special users without having to define and store a new IT policy for each special user. This can be achieved by specifying global and per-user IT policy rules and merging these rules as needed to produce IT policy data. | 01-03-2013 |
20140215554 | METHOD OF CUSTOMIZING A STANDARDIZED IT POLICY - A system and method are described herein for standardizing an IT policy that is used to configure devices operating on a network. An IT policy can be generated that applies to a group of users or to one or more special users without having to define and store a new IT policy for each special user. This can be achieved by specifying global and per-user IT policy rules and merging these rules as needed to produce IT policy data. | 07-31-2014 |
Phillip John Roberts, Selkirk CA
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20110131920 | Fascia Board Support Device for Roofing - A fascia board support device features a rafter bracket having a side member for placement against one vertical side of the rafter, and a movable member pivotally coupled to the side member for movement into and out of a deployed position in which at least a portion of the movable member depends downward on an opposing side of the roof rafter. A clamping mechanism forces the depending portion against this opposing side of the roof rafter to clamp the device thereon, at which point a fascia board support projecting from the front end of the rafter bracket can seat a fascia board. After fastening of the fascia board to the rafter, the device is easily removed by releasing the clamp, flipping the movable member over to same side of the rafter as the side member and lowering the device to withdraw the support from beneath the fastened fascia board. | 06-09-2011 |
Quinton James Roberts, Wyevale CA
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20160132613 | SYSTEM, METHOD AND ARCHITECTURE FOR A DOCUMENT AS A NODE ON A SOCIAL GRAPH - A content management system may instantiate, from the same super class defined in a database schema, principal objects representing users and groups and content objects representing documents and folders. The principal objects and the content objects share the same social interaction functions. When a content object is modified, the system can create a message in which the content object identifies itself as a first person, update a message table such that any follower of the content object is notified of the message, and update a profile or feed associated with the content object. At least because content objects can “socialize” like principal objects, the system can generate a social graph containing content objects as nodes, map relationships among principal objects and content objects, and make recommendations to perhaps change/enhance such relationships. | 05-12-2016 |
Robbie Roberts, Calgary CA
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20130168086 | PRESSURE BALANCING PROPPANT ADDITION METHOD AND APPARATUS - A method and apparatus is disclosed for controlling the flow of proppant into frac fluid during a frac. A first pressure source pressurizes fluid within a proppant addition unit. Process piping receives proppant through a proppant supply passage for supply to a frac pressure pump. A second pressure source pressurizes fluid within the process piping. A first sensor senses pressure on a first side of the proppant supply passage and outputs a first signal. A second sensor senses pressure on the process piping on a second side of the proppant supply passage and outputs a second signal. A processor receives the first signal and the second signal, and outputs a control signal to at least one of the first pressure source and the second pressure source in response to the first signal and the second signal to control proppant flow into the process piping. | 07-04-2013 |
Robbie Gordon Roberts, Port Moody CA
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20150371566 | DISPLAY HOLDER SYSTEM - A system for forming display holders, such as name badges, identification badges, name plates, signs and the like, from modular, interchangeable components. In one embodiment a display holder is provided comprising a display subassembly having a cover and a backer plate releasably connectable to the cover, the plate having a first connector located on a rear surface of the plate. The display holder also includes a second connector releasably connectable to the first connector for positioning the display subassembly relative to a support surface. | 12-24-2015 |
Russell Roberts, Fort St. John CA
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20130090215 | Thumb Fitness Device - An exercise device for improving thumb strength in a user of a thumb-driven throttle machine is provided. The exercise device comprises a shaft component, a grip component, and the throttle component, and generally resembles a right side of a handle of a vehicle having a hand throttle mechanism. The exercise device allows a user to exercise a thumb by moving a throttle component from a relaxed position to a position under tension. | 04-11-2013 |
Stephen Keir Roberts, Ottawa CA
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20080236588 | SUPPORT DEVICE FOR RESPIRATORY INTERFACE - A patient interface support that supports a patient interface of a PAP device and generates a pre-selected engagement pressure at the patient interface to create a seal between the patient interface and the patient's airflow passages when the interface support is in use while alleviating the strain on the patient's head. The patient interface support comprises a base for attachment to a support surface; and, a support extension having a joint; a patient interface mount; and, biasing means. The joint movably connects the support extension to the base, the patient interface mount supports the patient interface, and the biasing means generates a pre-selected engagement pressure at the patient interface to create a seal between said patient interface and the patient's airflow passages when said interface support is in use. | 10-02-2008 |
Stephen P. Roberts, Mississauga CA
Wallace Martin Roberts, Conception Bay South CA
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20120073489 | Modular Boat Hull Molds and Method of Making Boat Hulls Using Same - The present invention generally provides mold modules for constructing boat hulls, methods of constructing boat hulls using the mold modules, and hulls constructed using the mold modules. The modules may be adjustable, and may be included in a kit for building the hull of many boats of different dimensions but generally the same shape. Each mold module generally comprises a mold in a shape complementary to that of a portion of a boat hull, and an edge mold to form the edge of the hull part formed by that mold module. A mold module according to the present invention may also comprise one or more mold adjustment areas, and calibrators for selecting the boat hull dimensions. Methods for using the aforementioned mold modules generally comprise steps of molding hull parts, removing them from the mold modules, aligning them and finally attaching them together. | 03-29-2012 |
Wallace Martin Roberts, St. Joseph'S Sal CA
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20150210358 | Modular Boat Hull Molds and Method of Making Boat Hulls Using Same - The present invention generally provides mold modules for constructing boat hulls, methods of constructing boat hulls using the mold modules, and hulls constructed using the mold modules. The modules may be adjustable, and may be included in a kit for building the hull of many boats of different dimensions but generally the same shape. Each mold module generally comprises a mold in a shape complementary to that of a portion of a boat hull, and an edge mold to form the edge of the hull part formed by that mold module. A mold module according to the present invention may also comprise one or more mold adjustment areas, and calibrators for selecting the boat hull dimensions. Methods for using the aforementioned mold modules generally comprise steps of molding hull parts, removing them from the mold modules, aligning them and finally attaching them together. | 07-30-2015 |