Patent application number | Description | Published |
20080298417 | OPTICAL SPECTRAL FILTERING AND DISPERSION COMPENSATION USING SEMICONDUCTOR OPTICAL AMPLIFIERS - The invention provides a device and a method for extending the bandwidth of short wavelength and long wavelength fiber optic lengths. The invention provides for an optical transmitter package device comprising: a laser diode; and a semiconductor optical amplifier connected directly after and in close proximity to the laser diode, wherein the semiconductor optical amplifier is adapted to operate in a frequency domain such that the semiconductor optical amplifier filters and reshapes optical wavelengths from the laser diode, and wherein the semiconductor optical amplifier is biased below an amplification threshold for the semiconductor optical amplifier. The device may also comprises a feedback circuit which comprises an optical splitter, wherein the feedback circuit samples reshaped optical output from the semiconductor optical amplifier and dynamically adjusts one or both of the semiconductor optical amplifier and the laser diode. In the case of a multimode fiber, the present invention provides the additional ability to provide a controlled offset launch into the fiber and the ability to control modal noise devoid of a specialized optical connector. | 12-04-2008 |
20090022181 | OPTICAL SPECTRAL FILTERING AND DISPERSION CONTROL FOR WAVELENGTH MULTIPLEXED LASER SOURCES USING FIBER BRAGG GRATINGS - The embodiments of the invention provide an apparatus for optical spectral filtering and dispersion control for wavelength multiplexed laser sources using fiber Bragg gratings. More specifically, the apparatus includes a laser diode having a first end and a second end opposite the first end. The first end of the laser diode has a first semi-transparent portion; and, the second end of the laser diode has a second semi-transparent portion. The apparatus further includes an optical fiber connected to the second end of the laser diode. The optical fiber has a first end and a second end opposite the first end, wherein the first end of the optical fiber is connected to the second end of the laser diode. The laser diode comprises a laser cavity; and, the optical fiber comprises an extension of the laser cavity. Moreover, the second end of the optical fiber has a reflective surface. | 01-22-2009 |
20090285525 | METHOD FOR REDUCING BANDWIDTH LOSS IN DATA CENTER APPLICATIONS WITH MULTILPLE FIBER TYPE CONNECTIVITY - A communications coupling for a low bandwidth fiber optic cable and a high bandwidth fiber optic cable, includes: a guiding ferrule adapted for coupling to a surrogate fiber optic cable comprised of one of the low bandwidth fiber optic cable and the high bandwidth fiber optic cable, the guiding ferrule including at least one mounting feature for aligning the guiding ferrule with an optical axis of the surrogate cable; the guiding ferrule further including at least one guiding feature for aligning the optical axis of the surrogate fiber optic cable with an optical axis of a connecting fiber optic cable, the connecting fiber optic cable comprised of the other one of the low bandwidth fiber optic cable and the high bandwidth fiber optic cable. A method and a communications infrastructure are provided. | 11-19-2009 |
20110149385 | SYSTEM TO CONTROL AN OPTICAL SIGNAL - A system to control an optical signal may include a semiconductor laser diode. The system may also include an optical amplifier to receive an optical signal from the semiconductor laser diode. The optical amplifier may be configured to spectrally filter the optical signal. | 06-23-2011 |
20110274440 | OPTICAL SPECTRAL FILTERING AND DISPERSION COMPENSATION USING SEMICONDUCTOR OPTICAL AMPLIFIERS - The embodiments herein provide a device and a method for extending the bandwidth of short wavelength and long wavelength fiber optic lengths. The embodiments herein provide for an optical transmitter package device comprising: a laser diode; and a semiconductor optical amplifier connected directly after and in close proximity to the laser diode, wherein the semiconductor optical amplifier is adapted to operate in a frequency domain such that the semiconductor optical amplifier filters and reshapes optical wavelengths from the laser diode, and wherein the semiconductor optical amplifier is biased below an amplification threshold for the semiconductor optical amplifier. The device may also comprises a feedback circuit which comprises an optical splitter, wherein the feedback circuit samples reshaped optical output from the semiconductor optical amplifier and dynamically adjusts one or both of the semiconductor optical amplifier and the laser diode. | 11-10-2011 |
Patent application number | Description | Published |
20140112259 | Signaling for Random Access in Time Division Duplexed (TDD) Systems with Traffic Adaptation - A next-generation base station can update an uplink-downlink (UL/DL) configuration of a cell more frequently than legacy user equipments (UEs) are configured to recognize UL/DL updates while preventing non-compliant uplink transmissions in downlink subframes. For instance, a next-generation base station can restrict updates to the uplink-downlink configuration such that uplink timeslots previously allocated for random access channel (RACH) transmission opportunities by legacy UEs remain configured for uplink transmission. Alternatively, the next-generation base station can restrict the allocation of RACH transmission opportunities of legacy UEs to timeslots that are statically configured for uplink transmission. Notably, such a restriction may be selectively applied to legacy UEs, so as to not limit the performance of next-generation UEs. | 04-24-2014 |
20140169296 | Systems and Methods for Channel Measurements and Reporting - Embodiments are provided for configuring channel measurements and reporting by a user equipment (UE). The embodiments avoid unnecessary cell measurements and resulting reporting transmissions by the UE in network scenarios with restricted downlink transmissions from serving cells. A method by a network component includes sending, to the UE, a data transmission pattern for transmissions on downlinks from multiple cells serving the UE. The data transmission pattern indicates a plurality of subframes including one or more restricted subframes where transmissions from one of the cells are restricted. The method further includes sending, to the UE, a measurement pattern allocating measurements and reports for a cell from the UE to the cells at corresponding designated subframes of the subframes in the data transmission pattern. The UE transmits measurement reports to an assisting serving cell during the one or more restricted subframes. | 06-19-2014 |
20140177558 | System and Methods for Almost Blank Subframe (ABS) Density and Range Extension Optimization in Heterogeneous Networks - Embodiments are provided for optimizing the Almost Blank Subframe (ABS) pattern in heterogeneous network (HetNet) deployments with multiple small cells. One ABS pattern is used for all small cells. Different small cells can have different downlink loads from user equipments (UEs). An embodiment method includes transmitting a pilot signal in a small cell, and determining downlink load (DLL) information according to a pair of measurements from each UE served by the small cell. The pair of measurements includes a first measurement of the pilot signal and a second measurement of a second pilot signal from a macro cell. The method further includes determining a number of ABSs according to the DLL information, and reporting the DLL information and the number of ABSs to a network entity for selecting ABS density and range extension for the small cell and the macro cell. | 06-26-2014 |
20140269558 | System and Method for Time-Power-Frequency Hopping for D2D Discovery - Embodiments are provided to implement a time/power/frequency hopping scheme for device-to-device (D2D) discovery. The embodiments improve the UE detection of D2D discovery signals from neighboring UEs and account for large number of UEs' discovery signals. This is achieved by having neighboring UEs transmitting at different time instances and at different power levels. Further, neighboring UEs can be configured to transmit on different frequencies. This is achieved by assigning different time/power/frequency sequences to different UEs. An embodiment method includes transmitting, to a UE, parameters a hopping pattern of a first sequence of resources for transmitting a discovery signal by the UE and of a second sequence of resources for receiving a second discovery signal by the UE. The first sequence of resources comprises at least one of a sequence of time instances and a sequence of power levels. The second sequence of resources comprises time instances. | 09-18-2014 |
20140314000 | Systems and Methods for Adaptive Transmissions in Wireless Network - A method for cell adaptation includes receiving, by a user equipment (UE), one or more transmission parameters for a transition reference signal (TRS). One or more cells is transitioned between a reduced activity mode and an active transmission and reception mode in accordance with the TRS. The method further includes the UE determining whether or not to transmit the TRS in accordance with one or more TRS transmission criteria, and the UE transmitting the TRS in accordance with the one or more transmission parameters. | 10-23-2014 |
20140334320 | Systems and Methods for Network Adaptation Support in Wireless Network - Embodiments are provided for implementing network adaptation schemes, including small cell on/off adaptation and transmission power control. In an embodiment method for supporting network adaptation, a network component receives a discovery reference signal (DRS) from a network controller that is in a switch-off transmission mode. The network component then performs measurements according to the DRS, and reports the measurements to a network associated with the network controller. In return, the network component receives a radio resource control (RRC) signaling from the network. The RRC signaling includes configuration information allowing a connection between the network component and the network controller. The network component then connects with the network controller in accordance with the configuration information. | 11-13-2014 |
20150043483 | System and Method for Resource Allocation for Open Discovery in Device-to-Device Communications - A method for performing open discovery in a communications system includes determining, by a device-to-device (D2D) device, resource allocation information for a discovery cycle including discovery resources allocated for transmission of discovery signals by D2D devices. The method also includes selecting, by the D2D device, a first discovery resource of the discovery cycle in accordance with the resource allocation information, and transmitting, by the D2D device, a discovery signal in the selected first discovery resource. | 02-12-2015 |
20150045050 | System and Method for Resource Allocation Device-to-Device for Open Discovery - A method for operating a mobile device adapted for device-to-device (D2D) communications includes determining a utilization measure for discovery resources (DRs) allocated for D2D discovery in a communications system, and sending a utilization measure report to an evolved NodeB (eNB) when a reporting criterion is satisfied, wherein the utilization measure report is configured to prompt an adjustment to a number of DRs allocated for D2D discovery when an adjustment condition is met. | 02-12-2015 |
20150098422 | METHOD FOR AVOIDING COLLISIONS BETWEEN OPEN DISCOVERY AND CELLULAR RESOURCE - A device is configured to perform a method of wireless communication in a wireless communication network. The method includes receiving, from a communications controller, a device-to-device (D2D) subframe configuration to communicate with one or more second wireless devices, the subframe configuration indicating one or more subframes in which to transmit a D2D signal or receive one or more D2D signals. The method also includes receiving, from the communications controller, scheduling information to transmit a first signal to the communications controller on a subframe indicated by the D2D subframe configuration. The method further includes prioritizing the transmission of the first signal over a transmission of the D2D signal or a reception of the one or more D2D signals, and transmitting the first signal. | 04-09-2015 |
20150099514 | OPERATING STATES FOR D2D DISCOVERY - A device is configured to perform a method of device-to-device (D2D) communication in a wireless communication network in accordance with a Long Term Evolution (LTE) standard. The method includes entering an RRC-Idle state or an RRC-Connected state. The method also includes transmitting, in the RRC-Idle state or RRC-Connected state, a D2D discovery signal for receipt by at least one second device in the network. The method further includes receiving, in the RRC-Idle state or RRC-Connected state, at least one D2D discovery signal from the at least one second device in the network. | 04-09-2015 |
Patent application number | Description | Published |
20110288902 | COLLABORATION BASED CAPACITY PLANNING IN A MODULAR BUSINESS SETTING - A computer implemented method, system, and/or computer program product collaboratively reallocate resources across business modules. A collaboration vector, which describes primary and second abilities for each of multiple resources, is defined. A decision matrix is created from multiple collaboration vectors, and a pipeline for transferring the multiple resources among multiple business modules is defined based on the decision matrix. A recurring time interval to measure an effectiveness of the multiple business modules is defined, and the multiple resources are reallocated according to a measured effectiveness of the multiple business modules. The collaborative matrix is optimized to reflect reallocation of the multiple resources. | 11-24-2011 |
20120008134 | METHOD TO MATCH EXPOSURE TOOLS USING A PROGRAMMABLE ILLUMINATOR - Programmable illuminators in exposure tools are employed to increase the degree of freedom in tool matching. A tool matching methodology is provided that utilizes the fine adjustment of the individual source pixel intensity based on a linear programming (LP) problem subjected to user-specific constraints to minimize the difference of the lithographic wafer data between two tools. The lithographic data can be critical dimension differences from multiple targets and multiple process conditions. This LP problem can be modified to include a binary variable for matching sources using multi-scan exposure. The method can be applied to scenarios that the reference tool is a physical tool or a virtual ideal tool. In addition, this method can match different lithography systems, each including a tool and a mask. | 01-12-2012 |
20120017194 | METHOD FOR FAST ESTIMATION OF LITHOGRAPHIC BINDING PATTERNS IN AN INTEGRATED CIRCUIT LAYOUT - The present invention provides a lithographic difficulty metric that is a function of an energy ratio factor that includes a ratio of hard-to-print energy to easy-to-print energy of the diffraction orders along an angular coordinate θ | 01-19-2012 |
20120047471 | DYNAMIC PROVISIONAL DECOMPOSITION OF LITHOGRAPHIC PATTERNS HAVING DIFFERENT INTERACTION RANGES - A method for obtaining mask and source patterns for printing integrated circuit patterns includes providing initial representations of a plurality of mask and source patterns. The method identifies long-range and short-range factors in the representations of the plurality of mask and source patterns, and provides a plurality of clips including a specified number of mask patterns. Short-range factors having overlapping ranges for each of the clips are specified. The method includes determining an initial processing priority for the plurality of clips, and determining a patterning relationship between integrated circuit patterns and the mask and source patterns. A primary objective is determined which expresses the printability of the integrated circuit patterns in terms of the patterning relationship. The method defines and iteratively solves a master problem employing the primary objective to generate values for the long-range factors, and solves subproblems employing a second objective for generating values for the short-range factors. | 02-23-2012 |
20120077130 | METHOD FOR GENERATING A PLURALITY OF OPTIMIZED WAVEFRONTS FOR A MULTIPLE EXPOSURE LITHOGRAPHIC PROCESS - A simplified version of a multiexpose mask optimization problem is solved in order to find a compressed space in which to search for the solution to the full problem formulation. The simplification is to reduce the full problem to an unconstrained formulation. The full problem of minimizing dark region intensity while maintaining intensity above threshold at each bright point can be converted to the unconstrained problem of minimizing average dark region intensity per unit of average intensity in the bright regions. The extrema solutions to the simplified problem can be obtained for each source. This set of extrema solutions is then assessed to determine which features are predominantly printed by which source. A minimal set of extrema solutions serves as a space of reduced dimensionality within which to maximize the primary objective under constraints. The space typically has reduced dimensionality through selection of highest quality extrema solutions. | 03-29-2012 |
20120095800 | PREDICTING FINANCIAL STATUS OF A PROJECT - A computer implemented method, system, and/or computer program product predicts the profitability of a current project. Historical data from the current project represents profit data points at predetermined intervals of time during the current project. If a linear regression model of the historical data does not adequately describe the historical data, then a polynomial regression model to describe the historical data is generated. If the polynomial model does not adequately describe the historical data, then another project that is similar to the current project is located. This other project has its own set of historical data. If the historical data from the other project fits the polynomial regression model created from the historical data of the current project, then the polynomial regression model is trusted to accurately predict the profitability of the current project, even though the current project's historical data did not adequately fit the polynomial regression model. | 04-19-2012 |
20120136690 | Delivery Management Effort Allocation - Techniques for estimating future health of a project are provided. The techniques include defining a set of financial health metrics that represent a proximity of a current state of a project to that of a goal project, defining a parametric evolution model comprising parameters, wherein the parametric evolution model governs a relationship between current data of the set of financial health metrics and current project health in relation to past data of the set of financial health metrics, determining a value of each of the parameters of the parametric evolution model using an optimization problem, and using the value of each of the parameters of the parametric evolution model and the current data of the set of financial health metrics and current project health in relation to past data of the set of financial health metrics to estimate the future health of the project. | 05-31-2012 |
20120136694 | TRANSITION PHASE TROUBLE DETECTION IN SERVICES DELIVERY MANAGEMENT - A method, system, and/or computer program product predicts trouble during a transition phase of a current project. Past operational data and past trouble data for past healthy projects and past troubled projects before transition phases is collected. A trouble correlation between the past operational data and the past trouble data is then determined. A set of key metrics that describes a current health of a current project before transitioning from a current phase to a future phase is defined, and values of the set of key metrics for the current project are identified. Identified values of the set of key metrics for the current project are compared to the past operational data for past healthy and troubled projects in order to generate a pattern comparison. This pattern comparison, along with the trouble correlation, is used to generate a predicted quality of transition for the current project. | 05-31-2012 |
20120136695 | Determining Maturity of an Information Technology Maintenance Project During a Transition Phase - Techniques for determining maturity of a delivery process in an information technology maintenance project are provided. The techniques include collecting information during a delivery process, wherein the information comprises operational data, aggregating the collected information for each delivery dimension into one or more aggregate delivery measures, wherein the one or more aggregate delivery measures comprise one or more delivery dimensions, comparing the one or more delivery dimensions against a threshold to determine a level of maturity for each delivery dimension, and determining an overall level of maturity of the delivery process by combining the level of maturity for each delivery dimension. | 05-31-2012 |
20120284073 | OPTIMIZED COLLABORATION BETWEEN DISTRIBUTED CENTERS OF GLOBAL SERVICE DELIVERY SYSTEMS - A computer implemented method, system, and/or computer program product facilitate optimal collaboration between cells from different service centers for delivering a service to a customer. A cost of collaboration between two cells in different service centers is defined. Each of the two cells is a group of resources capable of executing a same task, and the cost is a 3-Tuple that consists of a monetary cost, a makespan cost, and a skill misalignment cost associated with the collaboration. After establishing acceptable cost ranges for the 3-Tuple based on constraints defined by an enterprise policy, a processor creates multiple collaboration matrices based on different permutations of the 3-Tuple. Once an optimal collaboration function derived from the multiple collaboration matrices is identified, the task is assigned to two optimal cells identified in the optimal collaboration function. | 11-08-2012 |
20120284076 | OPTIMIZING SERVICE DELIVERY SYSTEMS - A computer implemented method, system and/or computer program product optimizes a service delivery system. A processor receives a first set of inputs that describes a current state of a service delivery system and a second set of inputs that describes a cost overhead for the service delivery system. The processor then optimizes the service delivery system in order to derive an optimized service delivery system. | 11-08-2012 |
20120284078 | TOOL FOR MANAGER ASSISTANCE - A computer implemented method, system, and/or computer program product generate an optimal training policy and an optimal promotion policy to accommodate an upcoming project. Required new job positions are identified for an upcoming project. A skillset matrix, which describes a current skill level of each worker in a work unit, and a promotion matrix, which describes historical evaluations of how well each worker achieved predefined goals of past projects, are generated. The skillset matrix is utilized to create an optimal training policy that identifies which workers are in need of additional training in order to qualify for one or more of the identified new job positions, and the promotion matrix is utilized create an optimal promotion policy that identifies which workers will be candidates for being promoted into one or more of the identified said new job positions. | 11-08-2012 |
20120291007 | MANAGEMENT OF TEMPLATE VERSIONS - A computer implemented method, system, and/or computer program product modifies a master template for an executable document. A version architecture comprises a master template for a master document, a new variation document that describes what changes are to be made to the master template for a specific context, and a resulting modified template based on the master template and rule-based instructions found in the new variation document. A processor defines an executable master document from the master template that, when executed, produces a final product. Specific rules set out conditions for modifying the master template for the specific context. These specific rules are used to define a new variation document, which is applied against the master template to generate a context-specific modified template. The context-specific modified template is then used to generate a context-specific executable document that, when executed, generates a final context-specific product. | 11-15-2012 |
20120316912 | OPTIMIZING A SHARED SERVICE DELIVERY SYSTEM - A computer implemented method, system, and/or computer program product optimize a shared service delivery system. A model of an existing shared service delivery system is created. Capacity of the existing shared service delivery system is defined according to required resources for existing projects, new projects, and proposed projects. Existing cells of practitioners in the existing shared service delivery system are identified, and any gaps or gluts of capacity in the existing cells of practitioners are identified according to a general predetermined resource requirement for the shared service delivery system. | 12-13-2012 |
20130185045 | ANALYZING A PATTERNING PROCESS USING A MODEL OF YIELD - Techniques are presented that include accessing results of forward simulations of circuit yield, the results including at least circuit yield results including simulated device shapes. Using the circuit yield results, high-level traits of at least the simulated device shapes are determined. Based on the determined high-level traits and using the circuit yield results, a compact model for predicted yield is constructed, the compact model including a plurality of adjustable parameters, and the constructing the compact model for predicted yield including adjusting the adjustable parameters until at least one first predetermined criterion is met. An optimization problem is constructed including at least the compact model for yield, an objective, and a plurality of constraints. Using the optimization problem, the objective is modified subject to the plurality of constraints until at least one second predetermined criterion is met. | 07-18-2013 |
20130185046 | Analyzing A Patterning Process Using A Model Of Yield - Techniques are presented that include accessing results of forward simulations of circuit yield, the results including at least circuit yield results including simulated device shapes. Using the circuit yield results, high-level traits of at least the simulated device shapes are determined. Based on the determined high-level traits and using the circuit yield results, a compact model for predicted yield is constructed, the compact model including a plurality of adjustable parameters, and the constructing the compact model for predicted yield including adjusting the adjustable parameters until at least one first predetermined criterion is met. An optimization problem is constructed including at least the compact model for yield, an objective, and a plurality of constraints. Using the optimization problem, the objective is modified subject to the plurality of constraints until at least one second predetermined criterion is met. | 07-18-2013 |
20140258977 | METHOD AND SYSTEM FOR SELECTING SOFTWARE COMPONENTS BASED ON A DEGREE OF COHERENCE - Disclosed is a novel system and method to select software components. A set of available software components are accessed. Next, one or more dimensions are defined. Each dimension is an attribute to the set of available software components. A set of coherence distances between each pair of the available software components in the set of available software components is calculated for each of the dimensions that have been defined. Each of the coherence distances are combined between each pair of the available software components that has been calculated in the set of the coherence distances into an overall coherence degree for each of the available software components. Using the overall coherence degree, one or more software components are selected to be included in a software bundle. | 09-11-2014 |
20140258980 | SYSTEM FOR SELECTING SOFTWARE COMPONENTS BASED ON A DEGREE OF COHERENCE - Disclosed is a novel system and method to select software components. A set of available software components are accessed. Next, one or more dimensions are defined. Each dimension is an attribute to the set of available software components. A set of coherence distances between each pair of the available software components in the set of available software components is calculated for each of the dimensions that have been defined. Each of the coherence distances are combined between each pair of the available software components that has been calculated in the set of the coherence distances into an overall coherence degree for each of the available software components. Using the overall coherence degree, one or more software components are selected to be included in a software bundle. | 09-11-2014 |
Patent application number | Description | Published |
20110052200 | MULTI-MODE MULTIPLEXING USING STAGED COUPLING AND QUASI-PHASE-MATCHING - A mode-selective add/drop unit for a mode division de/multiplexing device includes an optical ADU waveguide adapted for coupling to an input optical waveguide. The optical ADU waveguide includes at least one region providing optical signal coupling between the ADU waveguide and a multi-mode waveguide; and, one or more phase matching regions for controlling a relative or absolute phase difference between an electromagnetic wave (EMW) carried in the ADU waveguide and the multi-mode waveguide. The mode-selective add/drop unit may further include a transition region connecting the coupling region and a phase matching region, wherein a shape of a transition region is governed by a polynomial function, exponential function, logarithmic function, trigonometric function or, any combination of these functions. | 03-03-2011 |
20110096313 | Constrained Optimization Of Lithographic Source Intensities Under Contingent Requirements - A method for illuminating a mask to project a desired image pattern into a photoactive material is described. The method includes receiving an image pattern. Determining a relationship between source pixels in a set of source pixels to desired intensities at one or more points in the image pattern is performed. Linear constraints are imposed on a set of intensity values based on one or more contingent intensity condition. The contingent intensity conditions include integer variables specifying contingent constraints. The method includes determining values of the set of intensity values in accordance with the linear constraints, using a constrained optimization algorithm. The set of intensity values represents intensities of a set of source pixels. The set of intensity values are output. Apparatus and computer readable storage media are also described. | 04-28-2011 |
20110231803 | Wavefront engineering of mask data for semiconductor device design - Optical wave data for a semiconductor device design is divided into regions. First wavefront engineering is performed on the wave data of each region, accounting for just the wave data of each region and not accounting for the wave data of neighboring regions of each region. The optical wave data of each region is normalized based on results of the first wavefront engineering. Second wavefront engineering is performed on the wave data of each region, based at least on the wave data of each region as has been normalized. The second wavefront engineering takes into account the wave data of each region and a guard band around each region that includes the wave data of the neighboring regions of each region. The second wavefront engineering can be sequentially performed by organizing the regions into groups, and sequentially performing the second wavefront engineering on the regions of each group in parallel. | 09-22-2011 |
20120330625 | MULTI-MODE MULTIPLEXING USING STAGED COUPLING AND QUASI-PHASE-MATCHING - A mode-selective add/drop unit for a mode division de/multiplexing device includes an optical ADU waveguide adapted for coupling to an input optical waveguide. The optical ADU waveguide includes at least one region providing optical signal coupling between the ADU waveguide and a multi-mode waveguide; and, one or more phase matching regions for controlling a relative or absolute phase difference between an electromagnetic wave (EMW) carried in the ADU waveguide and the multi-mode waveguide. The mode-selective add/drop unit may further include a transition region connecting the coupling region and a phase matching region, wherein a shape of a transition region is governed by a polynomial function, exponential function, logarithmic function, trigonometric function or, any combination of these functions. | 12-27-2012 |
Patent application number | Description | Published |
20100317550 | Drilling Fluid And Process of Making The Same - This invention relates to drilling fluids and processes for making drilling fluids, such as for use in environmentally sensitive areas. The environmentally friendly drilling fluid includes a first fluid component having between about 5 weight percent to about 95 weight percent of olefins with a chain length in a range of between about C12 and about C48. The first fluid component includes at least about 50 weight percent trisubstituted olefin functionality. The environmentally friendly drilling fluid includes a second fluid component. | 12-16-2010 |
20110039743 | LOW VISCOSITY OLIGOMER OIL PRODUCT , PROCESS AND COMPOSITION - The present invention relates to a low viscosity lubricant process, product, and composition characterized by low Noack volatility, low pour point, useful low temperature viscometrics, and high viscosity index and more particularly concerns a PAO composition having a kinetic viscosity at 100° C. in the range of about 4 cSt. | 02-17-2011 |
20130225459 | LOW VISCOSITY OLIGOMER OIL PRODUCT, PROCESS AND COMPOSITION - The present invention relates to a low viscosity lubricant process, product, and composition characterized by low Noack volatility, low pour point, useful low temperature viscometrics, and high viscosity index and more particularly concerns a PAO composition having a kinetic viscosity at 100° C. in the range of about 4 cSt. | 08-29-2013 |
20150322324 | DRILLING FLUID AND PROCESS OF MAKING THE SAME - Drilling fluids and processes for making drilling fluids for use in environmentally sensitive areas are provided. The environmentally friendly drilling fluid includes a linear olefin portion that includes linear alpha olefins and/or linear internal olefins with carbon numbers of about 6 carbons to about 30 carbons; and an oligomer portion comprising dimers, trimers, tetramers, and/or heavier oligomers of olefins, wherein the olefins have a carbon number of between about 4 carbons and about 24 carbons, and the oligomer portion includes at least about 50 mole percent of trisubstituted olefin. The drilling fluid has a pour point of about −10° C. or lower, a biodegradation ratio of about 1.0 or less, a toxicity ratio of about 1.0 or less, a Marine Bodis of at least about 60%, a flash point of about 110° C. or higher, a viscosity less than about 4 cSt at 40° C., a density of about 0.78 to about 0.83 gram/ml, and a log Pow of greater than about 3. | 11-12-2015 |