Qian, CA
Dong Qian, Amherstburg CA
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20130263871 | METHODS AND DEVICES FOR HAIR WEAVE AND HAIR PIECE ATTACHMENT - Methods and devices for attaching hair weaves to a wearer's existing hair are described. A hair extension/weave portion (e.g., a system comprised of a plurality of natural and/or synthetic hair strands) may be attached to an attachment strip member via a base member with a suture, such as a thread or stitch. The attachment strip member may be formed of a flexible material, such that it can conform to the contours of the wearer's head/scalp. Holes may be provided on the attachment strip member so to allow the attachment of one or more clip members thereto. The clip members, having the attachment strip member and hair extension portion attached thereto, may then be inserted into the wearer's existing hair so as to secure the hair extension system thereto. The clip members, and thus the hair extension system, may then be easily removed from the wearer's existing hair when desired. | 10-10-2013 |
Jason Sen Qian, Mississauga CA
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20100131610 | Master Nodes and Slave Nodes for a Communication Network, and Methods Thereof - Illustrative methods, apparatuses and software are described for searching for an ID of a slave node within a communication network, such as a single-wire communication network. Also, illustrative embodiments of a master node and a slave node are described. | 05-27-2010 |
Jiping Qian, Oakville CA
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20100183763 | Injection Molding Apparatus - An injection molding apparatus includes an inlet component, a plurality of nozzles, and a plurality of hoses, each of which is not heated. The hoses are connected between outlets of the inlet component and respective molding material inlets of the nozzles for conveying molding material from the inlet component to the nozzles. Hoses may also be connected between a rail plate and the nozzles for delivering cooling fluid or actuation fluid for an actuator to and from the nozzles. The nozzles may be fastened to a mold plate of the injection molding apparatus, such as by a threaded bushing. A heated insert may at least partially define the mold cavity to heat molding material in the mold cavity. | 07-22-2010 |
Li Qian, Toronto CA
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20090097036 | System and Method to Determine Chromatic Dispersion in Short Lengths of Waveguides Using a Common Path Interferometer - The present invention relates to a system and method to determine chromatic dispersion in short lengths of waveguides using a two wave interference pattern and a common path interferometer. Specifically the invention comprises a radiation source operable to emit radiation connected to a means for separating incident and reflected waves; the means for separating incident and reflected waves possessing an output arm adjacent to a first end of the waveguide; and the means for separating incident and reflected waves further connected to an optical detector operable to record an interference pattern generated by a reflected test emission from the radiation source. The interference pattern consists of two waves: one reflected from a first facet of a waveguide and the second reflected from a second facet of the same waveguide. | 04-16-2009 |
20090257715 | DYNAMIC WAVEFORM SHAPING IN A CONTINUOUS FIBER - A system for dynamic waveform shaping in an optical fiber comprising: the optical fiber receiving an optical waveform, the optical waveform having individual spectral lines; a plurality of fiber bragg gratings in-line on the optical fiber, each having a reflectivity wavelength corresponding to one of the spectral lines; a plurality of polarization controllers in-line on the optical fiber, each polarization controller receiving the optical waveform from a respective fiber bragg grating; a circulator for directing the optical waveform as input to the plurality of fiber bragg gratings and receiving the optical waveform as output from the plurality of fiber bragg gratings; and a polarizer in-line on the optical fiber receiving the optical waveform from the fiber bragg gratings and the polarization controllers. | 10-15-2009 |
20100296102 | SYSTEM AND METHOD TO DETERMINE CHROMATIC DISPERSION IN SHORT LENGTHS OF WAVEGUIDES USING A 3-WAVE INTERFERENCE PATTERN AND A SINGLE-ARM INTERFEROMETER - The present invention relates to a system and method to determine chromatic dispersion in short lengths of waveguides using a three wave interference pattern and a single-arm interferometer. Specifically the invention comprises a radiation source operable to emit radiation connected to a means for separating incident and reflected waves; the means for separating incident and reflected waves having an output arm adjacent to a first end of the waveguide; the means for separating incident and reflected waves connected to a detector; a collimating means positioned at a second end of the waveguide; and a reflecting means positioned at a balanced distance from the collimating means operable to reflect a test emission from the radiation source back through the collimating means, the waveguide, and the means for separating incident and reflected waves thereby generating an interference pattern that is recorded by the detector. | 11-25-2010 |
20120045053 | RANDOM SIGNAL GENERATOR USING QUANTUM NOISE - Systems and methods for generating a random signal, based on quantum noise in the phase of two or more input signals. The generated output random signal has random variation in its intensity based on the quantum noise in the phases of the input signals. | 02-23-2012 |
Shen-En Qian, Quebec CA
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20140043505 | METHOD AND SYSTEM OF INCREASING SPATIAL RESOLUTION OF MULTI-DIMENSIONAL OPTICAL IMAGERY USING SENSOR'S INTRINSIC KEYSTONE - A method and system for creating a high spatial resolution image from a multidimensional imagery is disclosed. The technique exploits an intrinsic spatial distortion of the sensor that acquired the imagery and uses it as additional information to increase spatial resolution of the imagery. The method comprises obtaining a baseline image from the multidimensional imagery; deriving n×m−1 sub-pixel shifted images from the multidimensional imagery, where n and m are spatial resolution increase factors in x and y directions respectively, integers and greater than 1; organizing the baseline image and the n×m−1 sub-pixel shifted images from the multidimensional imagery; fusing the organized images using iterative back projection (IBP) to generate a high resolution image; and outputting the generated high resolution image. | 02-13-2014 |
Shen-En Qian, Brossard CA
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20090279805 | Method of coding a continuous data flow using vector quantization - Methods and systems for compressing a continuous data flow for numerous applications where it is necessary to process large data sets such as hyper-spectral data cubes in real-time. A predetermined number of 2D focal plane frames in a boundary area of a previous regional data cube close to a current regional data cube are included in a training set used for codevector training for the current region. Therefore, no artificial boundary occurs between the two adjacent regions when codevectors trained in this way are used for codebook generation and encoding of the spectral vectors of the current regional data cube. This process substantially reduces image artifacts between adjacent regions. A remedy for the single bit error problem is also provided. Full redundancy of compressed data for a regional data cube is obtained by combining a previous regional data cube and the current regional data cube for codebook training. In order to obtain redundancy for the index map, the codebook is used to encode the current regional data cube as well as the previous regional data cube producing a baseline index map for the current regional data cube and a redundant index map for the previous regional data cube. Therefore, full redundancy for a regional data cube is provided allowing restoration of a regional data cube even if its codebook and/or index map are corrupted or lost due to single bit errors. | 11-12-2009 |
20110170796 | Method And System For Increasing Signal-To-Noise Ratio - Methods and systems for increasing the signal-to-noise ratio for satellite sensor data or signals, such as hyperspectral imageries (also referred to as datacubes due to their 3-dimensional nature). This is done by reducing the noise in the data or signals by first elevating the noise level temporarily for effective denoising. The denoising process is then performed in this condition and the noise level is then reversibly de-elevated after denoising. The denoising process comprises noise removal in both the spectral and the spatial domains. Once the denoising process is complete, the data is converted back from the spectral and spatial domains. Since this reconstruction process introduces errors, these errors are compensated for using the components from both the original data and denoised data filtered by the low pass filters. | 07-14-2011 |
Wei Qian, Markham CA
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20130197891 | SUBSURFACE HYDROGEOLOGIC SYSTEM MODELING - A method of modeling a subsurface hydrogeologic system within a study area can include applying an electric current directly to the subsurface hydrogeologic system and monitoring a magnetic field generated by the electric current in the subsurface hydrogeologic system. An electric current distribution can be identified within the study area by an inversion process based on the magnetic field. A model of the electric current distribution can be created. | 08-01-2013 |
Wei Qian, Toronto CA
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20080221471 | APPARATUS FOR COLLECTION OF AIRWAY GASES - The invention relates to an apparatus for collection of airway gases from a subject comprising a first means for producing closure of the velum of the subject, and a second means for collection of the airway gases, wherein the first and second means need not be integral with each other. | 09-11-2008 |
Weiman Qian, Vancouver CA
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20120119591 | Novel Pulsed Power Supply For Plasma Electrolytic Deposition And Other Processes - The invention disclosed is a pulsed power supply for plasma electrolytic deposition (PED) for generating pulsed direct current for controlled interruption of the arcing process of PED, comprising a power distribution and relay logic (PDRL) module; a positive AC/DC (alternating current/direct current) power module; a negative AC/DC power module; a power pulse output module; and a computer control and data acquisition module, wherein the power pulse output module further comprises a pulse controller and an insulated-gate bipolar transistor (IGBT) power switch, and wherein the PDRL module is operatively coupled to both the positive and negative AC/DC power modules and the respective positive and negative power modules are then operatively coupled to both the power pulse output module and the computer control and data acquisition module, and wherein the computer control and data acquisition module controls both the respective positive and negative power modules and the power pulse output module to generate pulsed DC for controlled interruption of the arcing process. | 05-17-2012 |
Xiaofeng Qian, Toronto CA
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20090024589 | METHODS AND SYSTEMS FOR ACCESSING DATA - Some embodiments of the invention provide a user interface that allows a user to specify one or more attributes that should be included in a master reference data set, and identify which of these attributes should serve as enterprise specified identifiers that can be used to identify the particular master reference data set in an enterprise data storage. Some embodiments of the invention provide a method that allows the master reference data set to be accessed and updated in the data storage through the use of the enterprise specified identifiers. | 01-22-2009 |
Xiaofeng Qian, Burnaby CA
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20110165681 | Light-Activated Proton Pumps and Applications Thereof - In a method for adjusting the voltage potential or pH of, or cause proton release from, cells, subcellular regions, or extracellular regions, a gene encoding for a light-driven proton pump is incorporated into at least one target cell or region, the proton pump operating in response to a specific wavelength of light. Expression of the gene is caused by exposing the target cell or region to the specific wavelength of light in a manner designed to cause the voltage potential adjustment, pH adjustment, or proton release. The proton pump may be a microbial rhodopsin, in particular derived from the | 07-07-2011 |
Xiaoyan Qian, Aurora CA
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20090216709 | OPTIMIZED COLLECTION OF JUST-IN-TIME STATISTICS FOR DATABASE QUERY OPTIMIZATION - A system and method are provided for updating database statistics for use in generating query execution plans. A first query for a database is received, for example by a compiler, and the compiler accesses statistics associated with the first query for optimizing a query execution plan for the first query. The statistics may be accessed from a first cache. If the statistics retrieved from the first cache are determined to be stale, the system obtains updated statistics and may store them in a temporary cache. The stale statistics in the first cache are marked as invalid. Existing queries using the first cache may continue to use the first cache, while new queries may be provided with updated statistics. | 08-27-2009 |
Xing Qian, Waterloo CA
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20090187380 | ROOT MEDIAN SQUARE POWER MEASUREMENT - A handheld computing device comprises a data processor configured to allocate a set of measurements of a wireless signal amongst partitions of a hierarchical multi-level partition space. Each level has a plurality of the partitions. Each partition has a respective numerical range, and the value of each allocated measurement is within one of the ranges. One of the measurements allocated to one of the partitions has a desired rank. This partition encompasses the range of all the partitions in the immediately lower level. Each partition in the immediately lower level has a desired resolution for the allocated measurements. The data processor sums the number of measurements allocated to each respective partition in the immediately lower level until the desired rank is obtained. The numerical range of the partition in this lower level that is associated with the desired rank comprises an estimate of a characteristic of the wireless signal. | 07-23-2009 |
Xing Qian, Conestogo CA
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20130205176 | METHOD AND APPARATUS FOR REDUCING FALSE DETECTION OF CONTROL INFORMATION - A control channel may be used to transmit control information, such as Downlink Control Information (DCI), to a mobile device from a network component, such as a base station or a base node. The mobile device may use a blind decoding scheme to detect DCIs. A DCI may be falsely detected by the mobile device. According to some embodiments, data that has been decoded by a blind decoder, from buffer data for a candidate control channel, is re-encoded. The re-encoded data is compared to buffer data for the control channel. The decoded data is treated as control information dependent on the comparison of the re-encoded data with the buffer data. In some embodiments, comparing the re-encoded data to the buffer data includes generating a metric as a function of a degree of similarity between the re-encoded data and the buffer data. The metric may be compared to a threshold. | 08-08-2013 |
20130301428 | POWER BASED GAIN CONTROL ADJUSTMENT - Method and devices for use in a wireless device are described herein. A signal is received over a plurality of time segments, the signal over each time segment including a plurality of resource element blocks. For each time segment, at least one resource element block is selected from the plurality of resource element blocks of the time segment based on information determined about the time segment. For each time segment, a power value associated with the at least one resource element block of the time segment is determined. For each time segment, a gain adjustment value to adjust the gain of the time segment or one or more subsequent time segments of the signal is determined based upon the power value associated with the at least one resource element block. | 11-14-2013 |
20130315288 | SYSTEM AND METHOD FOR TRANSMITTING DATA THROUGH A DIGITAL INTERFACE - There are disclosed systems and methods that dynamically vary the word length of data being transmitted through a digital interface. In one embodiment, the method comprises: (i) obtaining at least one parameter indicative of a quality of a signal; (ii) if the at least one parameter indicates that the quality of the signal is above a threshold, then transmitting the data as a number of digital words at a first predetermined word length; (ii) if the at least one parameter indicates that the quality of the signal is below the threshold, then transmitting the data as a number of digital words at a second predetermined word length. The second predetermined word length is different from the first predetermined word length. | 11-28-2013 |
Yasheng Qian, Verdun CA
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20100228543 | METHOD AND APPARATUS FOR EXTENDING THE BANDWIDTH OF A SPEECH SIGNAL - A bandwidth extension module, and an associated method and computer-readable medium, suitable for use in artificially extending the bandwidth of a lowband speech signal. The bandwidth extension module comprises a band-pass filter configured to produce a band-pass signal from the lowband speech signal; at least one carrier frequency modulator, each carrier frequency modulator configured to pitch-synchronously modulate the band-pass signal about a respective carrier frequency, the at least one carrier frequency modulator collectively producing a highband speech signal component; a synthesis filter configured to determine a highband speech signal based on the highband speech signal component; and a summation module configured to combine the lowband speech signal with the highband speech signal to obtain a bandwidth-extended speech signal. | 09-09-2010 |
Ying Qian, Kanata CA
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20130316710 | System and Method for Configuring a Communications Network - A method for partitioning a communications network includes selecting, by a controller, a starting communications controller for a first region in the communications network according to an interference level. The method also includes including, by the controller, a first neighboring communications controller in the first region if an average inter-cell interference level of the starting communications controller and the first neighboring communications controller exceeds a first threshold and closing the first region if the average inter-cell interference level of the starting communications controller and the first neighboring communications controller fails to exceed the first threshold. The method further includes storing information about the first region in a memory. | 11-28-2013 |
20140086072 | SELF ADAPTIVE MULTI-LEVEL DOWNLINK POWER CONTROL FOR NOISE-LIMITED WIRELESS CELLULAR NETWORKS - The invention provides a self-adaptive downlink power control scheme for OFDMA-based wireless cellular networks suitable for noise-limited environments. Downlink power levels are assigned in a distributed manner in the absence of any requirement for coordination or cooperation between cells. Distributed assignment allows for more optimal usage of the available transmit power at the base stations and more complete exploitation of the flexibility of frequency domain scheduling. In one embodiment, base stations in a cellular network service mobile user equipment within the respective base station coverage areas, and categorize the user equipment in a plurality of power levels according to certain criteria in accordance with such factors as channel experience and quality. A load-balancing self-adjustment mechanism allows automatic balancing of the load between different power levels. | 03-27-2014 |
Ying Qian, Ottawa CA
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20120120893 | Methods and Apparatus for Inter-cell Interference Coordination Self-Organized Network - A method of resource allocation for use in a wireless network is disclosed. A network coloring decision to assign a plurality of resource blocks to a plurality of cells within the wireless network is triggered upon occurrence of a network event. A network coloring is performed by assigning each cell of the plurality of cells a resource block from the plurality of resource blocks. An effect of interference among adjacent cells with a same resource block assignment is reduced as measured by a network performance metric related to a number of resource block assignment conflicts over the plurality of cells. | 05-17-2012 |