Gang Qian
Gang Qian, Shenzhen CN
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20100110885 | METHOD, NETWORK ELEMENT DEVICE AND NETWORK SYSTEM FOR ESTABLISHING CONNECTION BETWEEN MAINTENANCE NODE AND BASE STATION - A method for establishing a connection between a maintenance node and a base station includes the following steps: the base station switches over to a preset standby Operation & Maintenance (OM) channel when an main OM channel fails and sends to the maintenance node via the standby OM channel a notification that the base station has switched over to the standby OM channel; and the maintenance node establishes a connection with the base station over the standby OM channel by using a standby Internet Protocol (IP) address of the base station after receiving the notification. A base station is also provided. | 05-06-2010 |
20110032817 | Method, Apparatus and Communication System for Protecting Signaling Transmission - The present invention discloses a method, an apparatus, and a communication system for protecting signaling transmission, relates to the communication field, and enables end-to-end signaling protection. In an embodiment of the present invention, a primary signaling path and at least one secondary signaling path are created between terminals; the transmission protocol of the primary signaling path is different from the transmission protocol of the secondary signaling path, and the secondary signaling path works instead when the primary signaling path is in an abnormal state. The embodiments of the present invention are primarily applied to communication systems, and in particular, to the communication systems that support multiple transmission modes, for example, WCDMA system that supports IP bearers. | 02-10-2011 |
Gang Qian, Kendall Park, NJ US
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20080200445 | Heterocyclic aspartyl protease inhibitors - Disclosed are compounds of the formula I | 08-21-2008 |
20090258868 | HETEROCYCLIC ASPARTYL PROTEASE INHIBITORS - Disclosed are compounds of the formula I | 10-15-2009 |
20100234603 | Process for Making Substituted Aryl Sulfone Intermediates - The present invention relates to novel substituted aryl sulfone intermediates and processes for preparing the same. An aspect of this invention relates to a process for making substituted aryl sulfone intermediates utilizing a one-pot deacylation-carbon/sulfur bond formation step. The invention also relates to a process for preparing intermediates that are used to make the compounds of formula I. Some of the advantages of the present invention include manufacturing flexibility and efficiency, high yield synthesis using a one pot deacylation and carbon-sulfur bond formation step of a thioester intermediate and the like. This and other aspects of the invention will be realized upon review of the specification as a whole. | 09-16-2010 |
20100234604 | Process for Making Substituted Aryl Sulfone Intermediates - The present invention relates to novel substituted aryl sulfone intermediates and processes for preparing the same. An aspect of this invention relates to a process for making substituted aryl sulfone intermediates utilizing a one-pot deacylation-carbon/sulfur bond formation step. The invention also relates to a process for preparing intermediates that are used to make the compounds of formula I. Some of the advantages of the present invention include manufacturing flexibility and efficiency, high yield synthesis using a one pot deacylation and carbon-sulfur bond formation step of a thioester intermediate and the like. This and other aspects of the invention will be realized upon review of the specification as a whole. | 09-16-2010 |
20110218194 | HETEROCYCLIC ASPARTYL PROTEASE INHIBITORS - Disclosed are compounds of the formula I | 09-08-2011 |
20120231017 | HETEROCYCLIC ASPARTYL PROTEASE INHIBITORS - Disclosed are compounds of the formula I | 09-13-2012 |
20120231018 | HETEROCYCLIC ASPARTYL PROTEASE INHIBITORS - Disclosed are compounds of the formula I | 09-13-2012 |
20120276118 | HETEROCYCLIC ASPARTYL PROTEASE INHIBITORS - Disclosed are compounds of the formula I | 11-01-2012 |
20130018066 | HETEROCYCLIC ASPARTYL PROTEASE INHIBITORS - Disclosed are compounds of the formula I | 01-17-2013 |
20140206715 | PREPARATION AND USE OF COMPOUNDS AS PROTEASE INHIBITORS - Disclosed are compounds of the formula I | 07-24-2014 |
Gang Qian, Leland, NC US
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20100143148 | TURBINE BLADE AND METHOD OF FABRICATING THE SAME - A turbine blade includes at least two blade segments. Each blade segment includes first and second shells joined together, a base region, at least one joint region including a mating face. Each of the first and second shells includes an outer skin, a base spar cap attached to an inner surface of the outer skin in the base region, a joint spar cap attached to the inner surface of the outer skin in the joint region and adjacent to at least a portion of the base spar cap. The joint spar cap includes holes in the mating face of the joint region. The turbine blade further includes fasteners within the holes for securing the at least two blade segments together. | 06-10-2010 |
Gang Qian, Niskayuna, NY US
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20090136355 | SYSTEM AND METHOD FOR JOINING TURBINE BLADES - A blade assembly including an outboard blade segment is provided. The outboard blade segment includes an outboard blade shell, first and second outboard bulkheads situated within the outboard blade shell, and an outer box supported by and aligned by the outboard bulkheads. The blade assembly also includes an inboard blade segment including an inboard blade shell, first and second inboard bulkheads situated within the inboard blade shell, and an inner box supported by and aligned by the inboard bulkheads. Further, the inner and the outer boxes are tapered to facilitate insertion of the inner box into the outer box and coupling of the inner and outer boxes. | 05-28-2009 |
Gang Qian, Hong Kong HK
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20110163803 | Programmable Gain Amplifier and Embedded Filter - There is provided an integrated circuit having a programmable gain amplifier and an embedded filter. The programmable gain amplifier and the filter comprise a gain element having an inverting input for receiving an input and a feedback signal, a non-inverting input coupled to ground, and an output. The gain element also has one or more feedback loops coupling the output of the gain element to the inverting input of the gain element. Each feedback loop has a switch coupled in series with at least one passive component. Each switch has a first state to connect the corresponding feedback loop and a second state to disconnect the corresponding feedback loop. Each switch is programmatically configurable to provide a first gain and a first bandwidth and a second gain and a second bandwidth such that the first bandwidth is substantially equal to the second bandwidth. | 07-07-2011 |
20140176233 | Bandwidth Calibration for Filters - A low power, high accuracy calibration circuit for filter calibration is provided. The calibration circuit includes a chargeable voltage storage element. A first measurement and adjustment circuit determines a charge time required for the voltage of the chargeable voltage storage element to substantially match a reference voltage. The circuit adjusts the voltage storage element to make the charge time approximately equal to a predetermined filter time constant value, the adjustment circuit updating the reference voltage to make the charge time substantially equal to the predetermined filter time constant value and iteratively updating the reference voltage to refine the charge time. A second circuit is configured to have substantially the predetermined filter time constant value based on the adjustment configuration determined by the adjustment of the voltage storage element and the reference voltage of the first circuit. | 06-26-2014 |
20140176238 | DC OFFSET CANCELLATION FOR A MULTI-STAGE AMPLIFIER - This invention provides a multi-stage amplifier incorporating DC offset cancellation. The amplifier has a plurality of series-connected gain stages each of which comprises a differential amplifier unit generating a pair of differential outputs from a pair of differential inputs. In particular, a trailing stage in the plurality of gain stages comprises a digital DC offset cancellation module configured to compensate for a DC offset of the trailing stage's differential amplifier unit. The digital DC offset cancellation module comprises a comparator coupled to the pair of differential outputs of the trailing stage's differential amplifier unit for receiving such differential outputs as inputs for the comparator. Preferably, the comparator has an inherent DC offset that is substantially small. It is preferable that a non-trailing stage of the amplifier comprises an analog DC offset cancellation module for compensating for a DC offset of the non-trailing stage. | 06-26-2014 |
Gang Qian, Shatin HK
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20110165854 | CURRENT-MATCHING INTERMODULATION SUPPRESSION - A circuit is provided for suppression of second-order intermodulation in a double-balanced mixer circuit. The circuit includes a duplicate transconductor element for duplicating AC current in a transconductor pair of the double-balanced mixer circuit. A fundamental cancellation element cancels a fundamental component of an AC current of the duplicate transconductor element, while preserving a second-order intermodulation component. A phase inversion element feeds an output current of the fundamental cancellation element to the transconductor pair of the double-balanced mixer circuit, to substantially remove the second-order intermodulation component from a differential output of the double-balanced mixer circuit. | 07-07-2011 |
Gang Qian, Chandler, AZ US
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20150073707 | SYSTEMS AND METHODS FOR COMPARING RANGE DATA WITH EVIDENCE GRIDS - Systems and methods for comparing range data with evidence grids are provided. In certain embodiments, a system comprises an inertial measurement unit configured to provide inertial measurements; and a sensor configured to provide range detections based on scans of an environment containing the navigation system. The system further comprises a navigation processor configured to provide a navigation solution, wherein the navigation processor is coupled to receive the inertial measurements from the inertial measurement unit and the range measurements from the sensor, wherein computer readable instructions direct the navigation processor to identify a portion of an evidence grid based on the navigation solution; compare the range detections with the portion of the evidence grid; and calculate adjustments to the navigation solution based on the comparison of the range detections with the portion of the evidence grid to compensate for errors in the inertial measurement unit. | 03-12-2015 |
Gang Qian, Plymouth, MN US
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20150199556 | METHOD OF USING IMAGE WARPING FOR GEO-REGISTRATION FEATURE MATCHING IN VISION-AIDED POSITIONING - Systems and methods for using image warping to improve geo-registration feature matching in vision-aided positioning is provided. In at least one embodiment, the method comprises capturing an oblique optical image of an area of interest using an image capturing device. Furthermore, digital elevation data and at least one geo-referenced orthoimage of an area that includes the area of interest are provided. The area of interest in the oblique optical image is then correlated with the digital elevation data to create an image warping matrix. The at least one geo-referenced orthoimage is then warped to the perspective of the oblique optical image using the image warping matrix. And, features in the oblique optical image are matched with features in the at least one warped geo-referenced orthoimage. | 07-16-2015 |
20150286217 | FEATURE SET OPTIMIZATION IN VISION-BASED POSITIONING - In one embodiment, a method for optimizing a set of matched features is provided. The method includes matching features between an optical image and a geo-referenced orthoimage to produce an initial set of matched features. An initial position solution is then determined for the optical image using the initial set of N matched features. The initial set of N matched features are then optimized based on a set of N sub-solutions and the initial position solution, wherein each of the N sub-solutions is a position solution using a different set of (N−1) matched features. A refined position solution is then calculated for the optical image using the optimized set of matched features. | 10-08-2015 |
Gang Qian, Rahway, NJ US
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20150329521 | PROCESS FOR MAKING REVERSE TRANSCRIPTASE INHIBITORS - The present invention is directed to a novel process for synthesizing 3-(substituted phenoxy)-1-[(5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl])-pyridin-2(1H)-one derivatives. The compounds synthesized by the processes of the invention are HIV reverse transcriptase inhibitors useful for inhibiting reverse transcriptase, HIV replication and the treatment of human immunodeficiency virus infection in humans. | 11-19-2015 |
Gang Qian, South Brunswick, NJ US
Patent application number | Description | Published |
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20150329521 | PROCESS FOR MAKING REVERSE TRANSCRIPTASE INHIBITORS - The present invention is directed to a novel process for synthesizing 3-(substituted phenoxy)-1-[(5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl])-pyridin-2(1H)-one derivatives. The compounds synthesized by the processes of the invention are HIV reverse transcriptase inhibitors useful for inhibiting reverse transcriptase, HIV replication and the treatment of human immunodeficiency virus infection in humans. | 11-19-2015 |