Shuangquan
Shuangquan Min, Singapore SG
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20100067138 | VARIABLE SPINDLE SPEED FOR RAMP UNLOAD - In a particular embodiment, a controller is adapted to control a spindle motor that controls rotation of at least one rotatable disc of a storage device. The controller is adapted to increase a spindle speed associated with the spindle motor to an unload spindle speed that is greater than an operating spindle speed during a ramp unload operation. | 03-18-2010 |
Shuangquan Wang, Kearny, NJ US
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20090231028 | TWO-STAGE LOW-COMPLEXITY MAX-LOG BIT-LEVEL LLR CALCULATOR AND METHOD - A demodulator and demodulation method includes a bit/symbol hard demodulator configured to obtain hard bit or symbol information from a received signal. At least one lookup table is configured to reference coefficients for computation of log-likelihood ratios (LLRs) from the hard bit or symbol information. A log-likelihood ratio calculation module is configured to compute bit-level LLRs from the coefficients and the received signal. | 09-17-2009 |
20090262872 | RECEIVER WITH PREFILTERING FOR DISCRETE FOURIER TRANSFORM-SPREAD-ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (DFT-S-OFDM) BASED SYSTEMS - A receiver for discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) based systems, including a prefilter for received signal codeword(s); and a log-likelihood ratio LLR module responsive to the prefilter; wherein the prefilter includes a pairing and whitening module that based on channel estimates and data rate enables the LLR module to perform either a Serial-In-Serial-Out (SISO) based log likelihood ratio processing of an output from the paring and whitening module or a two-symbol max-log soft output demodulator (MLSD) based log likelihood ratio processing of an output from the pairing and whitening module. | 10-22-2009 |
Shuangquan Wang, Morganville, NJ US
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20110075708 | METHOD AND SYSTEM FOR PER-CELL INTERFERENCE ESTIMATION FOR INTERFERENCE SUPPRESSION - A wireless system may receive a plurality of multipath signals from a plurality of transmitters and allocate per-cell modules for generating an interference suppressed signal from the multipath signals. Data symbols may be sequentially processed in the received multipath signals utilizing the per-cell modules and subtracting the processed symbols from a residual buffer storing the received multipath signals. Desired information received from one or more of the transmitters may be recovered utilizing the interference suppressed signal. Timing of the data symbols may be correlated utilizing a cell chip combiner. The data symbols may be descrambled utilizing conjugated scrambling codes associated with one of the plurality of transmitters. Orthogonal variable spreading factor (OVSF) codes may be generated utilizing a Walsh transform on the data symbols. Power levels of the OVSF codes may be estimated and estimated signals may be generated based on the OVSF codes and the estimated power levels. | 03-31-2011 |
20110103530 | METHOD AND SYSTEM FOR COMPENSATION OF INTERFERENCE CANCELLATION DELAY - Aspects of a method and system for compensation of interference cancellation delay are provided. In this regard, a wireless communication device may receive one or more signals and may be operable to select, whether dynamically or statically, a processing path for processing the one or more received signals. The selected processing path may comprise one of an interference cancellation processing path and a pass-through processing path. A delay introduced by the pass-through processing path may be approximately equal to a processing delay introduced by the interference cancellation processing path. The one or more received signals may comprise HSDPA signals. The selection of processing path may be based on a measure of interference present in the one or more received signals. | 05-05-2011 |
20120263030 | Method and System for a Programmable Interference Suppression Module - Aspects of a method and system for a programmable interference suppression module may include receiving a communication signal comprising one or more desired signal, and one or more undesired signals. The communication signal may be utilized to generate estimated channel state information. The estimated channel state information may be formatted for use in interference suppression. A reduced interference signal may be generated from a delayed version of said communications signal and the estimated channel state information, wherein the one or more undesired signals may be attenuated. The reduced interference signal may be formatted for post-processing. The desired signals may comprise WCDMA and/or HSDPA signals, and the undesired signals may be inter-cell and/or intra-cell interference. Further processing may comprise HSDPA processing and/or RAKE finger processing. The communication signal may be a Universal Mobile Telecommunication System (UMTS) compliant signal. | 10-18-2012 |
20130260695 | MOBILE DEVICE SEARCHING USING MULTIPLE ANTENNAS - Disclosed are various embodiments providing selecting various schemes for combining antenna signals for synchronization. For example, processing circuitry determines a first weight for a first antenna based on a signal strength metric of the first antenna and a second weight for a second antenna based on a signal strength metric of the second antenna. The processing circuitry receives a synchronization signal via the first antenna and the second antenna. Then the processing circuitry may weight the synchronization signal received via the first antenna according to the first weight to generate a first weighted synchronization signal and weight the synchronization signal received via the second antenna according to the second weight to generate a second weighted synchronization signal. The processing circuitry further combines the first weighted synchronization signal and the second weighted synchronization signal to generate a combined synchronization signal. | 10-03-2013 |
Shuangquan Wen, Nanjing CN
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20140169154 | METHOD, ROUTING DEVICE, AND SYSTEM FOR NETWORK DEVICE REDUNDANCY BACKUP - A method for network device redundancy backup includes performing communication and exchanging a VRRP message directly between VRRP master and backup routers to negotiate a master and backup relationship and sending, by the VRRP master device using an interface connected to an access device, a gratuitous ARP packet to the access device, so as to instruct the access device to direct user traffic to the VRRP master router. According to this method, the VRRP master and backup routers communicate and exchange a VRRP message directly, and the VRRP master router sends a gratuitous ARP packet to an access device through an interface connected to the access device. | 06-19-2014 |
Shuangquan Wu, Shenzhen CN
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20140027678 | METHOD FOR PREPARING CARBON NANOTUBE OR CARBON MICROTUBE - A method for preparing a carbon nanotube, including: a) preparing an LPAN solution, stirring the LPAN solution at between 100 and 200° C. for between 100 and 200 hours to yield a cyclized LPAN solution; b) heating the cyclized LPAN solution at between 200 and 300° C. for between 1 and 10 hours to yield an OPAN; c) grinding, screening, and drying at room temperature the OPAN to yield a thermal oxidative precursor; d) calcining the thermal oxidative precursor at between 400 and 1000° C. for between 1 and 24 h in the presence of inert gas having a flow rate of between 10 and 500 mL/min to yield a carbonated precursor; and e) calcining the carbonated precursor at between 1000 and 1500° C. for between 1 and 10 hours in the presence of the inert gas having a flow rate of between 10 and 500 mL/min to yield a carbon nanotube material. | 01-30-2014 |
Shuangquan Yu, Shenzhen CN
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20140099930 | CONTACT INFORMATION SYNCHRONIZATION SYSTEM AND METHOD - A method for synchronizing between a first address book on a user terminal and a second address book on an SNS network includes determining a synchronization target and, when the synchronization target is determined as the first address book, downloading contact information from the second address book to the user terminal. The method also includes, when the synchronization target is determined as the second address book, uploading contact information from the first address book to the SNS network, and matching the contact information in the first address book against the contact information in the second address book. Further, the method includes identifying a contact person having same contact information based on the matching and synchronizing information of the contact person in the first address book and information of the contact person in the second address book. | 04-10-2014 |
Shuangquan Zhu, Wuhan CN
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20080227012 | CHARGE CONTROL AGENT AND TONER COMPRISING THE SAME - Taught herein is a charge control agent comprising a specific type of gallic acid metal complex represented by the following Chemical Formula (1) or Chemical Formula (2): | 09-18-2008 |
20100015547 | METHOD FOR PRODUCING ELECTROSTATIC IMAGE DEVELOPING TONER - Provided is a method for producing an electrostatic image developing toner comprising: agglutinating wax and resin particles in aqueous medium; manufacturing a toner composed of wax and resin for developing an electrostatic image, wherein the wax is inside colorants. The method solves the problems of existing toner for developing an electrostatic image, such as low dispersion and easy detachment of colorants, low image density, the contamination of carriers and developing sleeves and low durability. The toner of the invention has high roll viscosity resistance and durability, and the colorants will not detach. | 01-21-2010 |