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| Number | Title | Issue Date |
| 8184850 | System and/or method for image tamper detection The subject matter disclosed herein relates to techniques for detecting tampering of digital image data. ... | 05/22/2012 |
| 8184627 | Point-to-multipoint (P2MP) network resource management Techniques for managing resources in a point-to-multipoint (P2MP) network are disclosed. In some examples, a root station is adapted to transmit and receive network packets and leaf stations are adapted to transmit and receive the network packets from the root stati... | 05/22/2012 |
| 8182783 | Rapid microwave process for purification of nanocarbon preparations A novel microwave-assisted process is described for the rapid removal of catalytic metal and non-desirable carbon impurities in fullerene, single wall, and multiple wall carbon nanotube preparations. The purification process is carried out at various programmed pres... | 05/22/2012 |
| 8175324 | Reversible data hiding Methods for reversible data hiding are disclosed herein. These methods may be applied to images for reversible image data hiding. In one embodiment, a method for reversible data hiding comprises identifying carrier data having a plurality of components and establish... | 05/08/2012 |
| 8167143 | Desalination devices and systems using porous hydrophobic hollow fibers and hydrophobic porous coatings DCMD and VMD systems and methods for use in desalination applications are provided. The DCMD and VMD systems employ coated porous hydrophobic hollow fiber membranes. The coatings advantageously function to essentially eliminate pore wetting of the membrane, while pe... | 05/01/2012 |
| 8163114 | Netshape manufacturing processes and compositions Techniques and processes that combine particulate coating processes with particulate handling steps resulting in the formation of free-flowing particulates for introduction into energetic product vessels to affect an in-situ, net-shape manufactured product. The proc... | 04/24/2012 |
| 8159952 | Data packet traffic scheduling Techniques of scheduling data packets are disclosed. For example, such data packet scheduling techniques may be employed to schedule data packets on wired and/or wireless networks. An example embodiment includes techniques for scheduling voice-over-Internet protocol... | 04/17/2012 |
| 8155229 | Apparatus and method for transmitting/receiving a signal in a communication system An apparatus is provided for transmitting a signal in a communication system. Upon receipt of an information vector, the apparatus includes converting the information vector into a plurality of sub-information vectors; performing coding and modulation on each of the... | 04/10/2012 |
| 8144723 | Method and system for stable throughput of cognitive radio In one embodiment, a cognitive radio system includes a first transmitter in communication with a first receiver via a wireless channel. The first transmitter receives a plurality of first packets, and transmits the first packets to the first receiver via the channel... | 03/27/2012 |
| 8130846 | System and method for single-carrier space-frequency block coded transmission over frequency selective and fast fading channels A single carrier transmission scheme which utilizes space-frequency block coding and frequency domain equalization (SF-SCFDE) is proposed for frequency selective and fast fading channel. It is shown that employing this technique in slow fading environment depicts th... | 03/06/2012 |
| 8126103 | Frame synchronization using correlation between permuted sequences A permuted sequences combination uses a frame structure in which two sync words, each comprising M complex symbols, are appended at the frame start. One benefit is the reduction of the large variance of the timing estimation error in the conventional correlation met... | 02/28/2012 |
| 8121119 | Point-to multipoint (P2MP) network resource management Techniques for managing resources in a point-to-multipoint (P2MP) network are disclosed. In some examples, a root station is adapted to transmit and receive network packets and leaf stations are adapted to transmit and receive the network packets from the root stati... | 02/21/2012 |
| 8118243 | Fluidized bed systems and methods including micro-jet flow Methods and systems for enhancing fluidization of nanoparticle and/or nanoagglomerates are provided. A fluidization chamber is provided with a fluidizing medium directed in a first fluidizing direction, e.g., upward into and through a bed containing a volume of nano... | 02/21/2012 |
| 8112095 | Sum rate of broadcast channels with outdated 1-bit feedback A single-input single-output (SISO) downlink channel with K users is analyzed in the presence of Rayleigh flat fading. A limited channel state information (CSI) feedback scheme is included, where only an outdated 1-bit feedback per user is available at the base stat... | 02/07/2012 |
| 8103054 | Method for identifying marked images using statistical moments based at least in part on a JPEG array Briefly, embodiments of a method of identifying marked images, in which higher order statistical moments based at least in part on a JPEG array are employed, is described. ... | 01/24/2012 |
| 8095006 | Configuration of passive optical networks including cascaded array waveguide gratings Techniques for partitioning and/or combining at least a portion of an optical network tree including one or more array waveguide gratings (“AWGs”) and fibers in wavelength division multiplexing (“WDM”) passive optical networks (“PON”) with cascaded AWGs ... | 01/10/2012 |
| 8091132 | Behavior-based traffic differentiation (BTD) for defending against distributed denial of service (DDoS) attacks Embodiments are directed toward a method for Behavior-based Traffic Differentiation (BTD) that initially receives incoming packets and performs traffic classification to determine the protocol of the incoming packets. In addition, BTD performs bandwidth division/all... | 01/03/2012 |
| 8088091 | No clog shunt using a compact fluid drag path The present invention is an improved shunt system for draining CSF. The system includes a removable sheath for reduction of catheter clogging during shunt insertion, a catheter with relatively large holes, an extracranial filter to allow non-invasive filter replacem... | 01/03/2012 |
| 8081318 | Non-periodic wavefront dividing interferometer A non-periodic reflection beamsplitter or reflector for use in an interferometer. The interferometer employs non-periodic reflectors or a non-periodic beamsplitter in order to produce interference patterns to analyze. The non-periodic reflectors or beamsplitters may... | 12/20/2011 |
| 8064428 | Method and apparatus for ordering retransmissions in an NxM MIMO system A method is provided for ordering retransmissions in a Multi-Input Multi-Output (MIMO) system using N×M antennas. A transmitter splits a coded data stream into N sub-packets, and transmits the N sub-packets to a receiver via N transmission antennas. The receiver re... | 11/22/2011 |
| 8041124 | Identifying computer graphics from digital photographs Computer graphics may be detected in digital images by extracting a first set of features from an input digital image, extracting a second set of features from a prediction-error image derived from the input digital image, and applying a classification algorithm to ... | 10/18/2011 |
| 8040787 | Method and/or system for reduction of PAPR Methods and/or systems for reducing peak-to-average-power ratio (PAPR) may utilize rotation among transmit channels and/or inversion of polyphase sequences of sub-blocks of an orthogonal frequency-division multiplex (OFDM) sequence in a multi-input multi-output (MIM... | 10/18/2011 |
| 8036738 | Iontophoretic transdermal drug delivery system based on conductive polyaniline membrane An iontophoretic transdermal drug delivery system that utilizes a porous conductive polyaniline membrane as one of two electrodes, with both electrodes in contact with an aqueous solution of the ingredient in ionic and nonionic form, and the membrane additionally in... | 10/11/2011 |
| 8023747 | Method and apparatus for a natural image model based approach to image/splicing/tampering detection Embodiments of the invention are directed toward methods for an effective blind, passive, splicing/tampering detection. The methods of the various embodiments of the invention use a natural image model to detect image splicing/tampering with a model that is based on... | 09/20/2011 |
| 8023583 | Method and/or system for estimating phase noise error Embodiments of methods and/or systems for estimating phase error noise are disclosed. ... | 09/20/2011 |
| 8014809 | Method and system for decentralized power control of a multi-antenna access point using game theory Power control for uplink channels with non-cooperative and rational mobile stations (MS) provided using game theory. As a game leader, a multi-antenna access point (AP) determines the network parameters (bandwidth and the number of receiving antennas) for the power ... | 09/06/2011 |
| 7991185 | Method and apparatus for image splicing/tampering detection using moments of wavelet characteristic functions and statistics of 2-D phase congruency arrays Embodiments of the invention are a novel splicing detection scheme that detects the spliced images by distinguishing image features that are extracted by exploiting both magnitude and phase information of a given image. The image features include the statistical mom... | 08/02/2011 |
| 7986413 | Methods and apparatus for rapid scanning continuous wave terahertz spectroscopy and imaging Methods and apparatus are provided employing rapid scanning continuous wave terahertz spectroscopy and imaging for the non-destructive evaluation of materials such as animal hides and natural cork, and explosive detection, concealed weapon detection, and drug detect... | 07/26/2011 |
| 7983233 | Apparatus for phase noise suppression for OFDM based WLANS Orthogonal frequency division multiplexing (OFDM) has been specified by IEEE 802.11a standard as the transmission technique for high-rate wireless local area networks (WLANs). Performance of an OFDM system, however, is heavily degraded by random Wiener phase noise, ... | 07/19/2011 |
| 7983144 | Clipping distortion canceller for OFDM signals Methods and apparatus are provided for reducing clipping noise from an OFDM signal, the methods and apparatus are operable to carry out actions including: (a) transforming a received orthogonal frequency division multiplexed (OFDM) signal from a transmission channel... | 07/19/2011 |
| 7974477 | Apparatus and method for reversible data hiding for JPEG images Embodiments of the invention are directed toward reversible/invertible and lossless, image data hiding that can imperceptibly hide data into digital images and can reconstruct the original image without any distortion after the hidden data have been extracted in var... | 07/05/2011 |
| 7964143 | Nanotube device and method of fabrication A nanotube device and a method of depositing nanotubes for device fabrication are disclosed. The method relates to electrophoretic deposition of nanotubes, and allows a control of the number of deposited nanotubes and positioning within a defined region. ... | 06/21/2011 |
| 7948881 | Distributed bandwidth allocation for resilient packet ring networks Methods and apparatus provide for allocating bandwidth in a resilient packet ring (RPR), including: determining a relationship between an arrival rate A(n) as a function of a fairness rate Fk(n) of a kth node of the RPR over time; computing an estimate of... | 05/24/2011 |
| 7947785 | Polyoxazolidones derived from bisanhydrohexitols Disclosed is a method for preparing polyoxazolidones wherein an ether of a bisanhydrohexitol is reacted with a diisocyanate under conditions which form polyoxazolidones. Preferred bisanhydrohexitols include isoidide, isomannide and isosorbide. The polyoxazolidones a... | 05/24/2011 |
| 7940989 | Apparatus and method for a generalized benford's law analysis of DCT and JPEG coefficients A method and apparatus for a novel statistical model based on Benford's law for the probability distributions of the first digits of the block-DCT and quantized JPEG coefficients. A parametric logarithmic law, the generalized Benford's law, is formulated. Furthermor... | 05/10/2011 |
| 7929563 | System and/or method for channel estimation in communication systems Embodiments of methods, devices and/or systems for estimating channel state information are described. ... | 04/19/2011 |
| 7925080 | Method for identifying marked images based at least in part on frequency domain coefficient differences Briefly, in accordance with one embodiment, a method of identifying marked images based at least in part on frequency domain coefficient differences is disclosed. ... | 04/12/2011 |
| 7915587 | Methods of rapid phase modulation of THz radiation for high speed THz imaging, spectroscopy, and communications devices and systems Rapid, voltage controlled phase modulation of continuous wave THz radiation is demonstrated. By transmitting an infrared laser beam through a phase modulator, the phase of the THz radiation which is generated by the photomixing of two infrared beams can be directly ... | 03/29/2011 |
| 7908654 | Accomodating fragmentation with deterministic packet marking The deterministic packet marking (DPM) method is based on marking packets with the partial address information of ingress interface only. The attack victim is able to recover the complete address(es) information after receiving several packets from a particular atta... | 03/15/2011 |
| 7906975 | Methods and apparatus for the non-destructive detection of variations in a sample Non-invasive THz spectroscopic apparatus and methods are provided for detecting and/or identifying constituents such as variations in a structural entity where chemical or biological entities can reside. Position dependent scattering of THz radiation is employed to ... | 03/15/2011 |
