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Measurement of dc offsets in iq modulators

Method of synchronizing a communication system

Date/App# patent app List of recent Polynomial-related patents
08/28/14
20140245101
 Semiconductor memory patent thumbnailnew patent Semiconductor memory
According to one embodiment, a semiconductor memory includes a memory cell unit, an encoding circuit that generates a first parity and a second parity for data, and a decoding circuit that performs error correction by using the data, the first parity, and the second parity, the first parity is generated by using a first generation polynomial for the data, the second parity is generated by using a second generation polynomial for the input data and the first parity, the second generation polynomial is selected based on the first generation polynomial, the data and the first parity is output to the outside, and the second parity is not output to the outside.. .
08/28/14
20140245099
 Memory controller, storage device and memory control method patent thumbnailnew patent Memory controller, storage device and memory control method
According to one embodiment, a memory controller includes an encoding unit that executes an error correction coding process on input-data and generates a code word, a calculation control unit that controls whether to execute a multiplication calculation of a multiplication circuit, and a memory interface unit that controls writing of the code word to the memory and reading of the code word from the memory, and the encoding unit includes a remainder circuit that performs a remainder calculation on the input-data using a first generator polynomial and generates a first code word having a first error correction capability and a first multiplication circuit that performs a multiplication calculation on the first code word using a second generator polynomial and performs a multiplication calculation of generating a second code word having a second error correction capability.. .
08/28/14
20140241407
 Measurement of dc offsets in iq modulators patent thumbnailnew patent Measurement of dc offsets in iq modulators
Described are systems and methods of determining dc offset voltages in iq modulators. First, two different dc test voltages are selected for one of the inputs to the iq modulator.
08/28/14
20140241384
 Method of synchronizing a communication system patent thumbnailnew patent Method of synchronizing a communication system
A method of synchronizing a time division duplex (tdd) multi-line, multi-carrier data communication system is provided. Synchronization is established using unique pseudo-random bit sequences (prbs) from a common generator polynomial having different seed values.
08/14/14
20140229807
 Instruction-set architecture for programmable cyclic redundancy check (crc) computations patent thumbnailInstruction-set architecture for programmable cyclic redundancy check (crc) computations
A method and apparatus to perform cyclic redundancy check (crc) operations on a data block using a plurality of different n-bit polynomials is provided. A flexible crc instruction performs a crc operation using a programmable n-bit polynomial.
08/14/14
20140229789
 Ldpc design for high parallelism, low error floor, and simple encoding patent thumbnailLdpc design for high parallelism, low error floor, and simple encoding
A method of data encoding is disclosed. An encoder receives a set of information bits and performs an ldpc encoding operation on the set of information bits to produce a codeword based on a matched lifted ldpc code.
08/14/14
20140229741
 Dual composite field advanced encryption standard memory encryption engine patent thumbnailDual composite field advanced encryption standard memory encryption engine
A different set of polynomials may be selected for encryption and decryption accelerators. That is, different sets of polynomials are used for encryption and decryption, each set being chosen to use less area and deliver more power for a memory encryption engine.
08/14/14
20140229517
 Automatic computer program obfuscation system patent thumbnailAutomatic computer program obfuscation system
A computer program obfuscating system including a processor to provide a computer program including at least one computer program variable, and add an opaque predicate to the computer program to obfuscate the computer program so that the opaque predicate added to the computer program comprises at least one polynomial including a polynomial p, during execution of the obfuscated computer program, the polynomial p is evaluated yielding at least one result including a first result r1, and during execution of the obfuscated computer program, the opaque predicate is evaluated based on the at least one result r1 such that a decision as to whether or not to perform the first command is dependent upon comparing the first result r1 to at least one value in accordance with a predetermined mathematical relationship. Related apparatus and methods are also included..
08/14/14
20140226788
 Method for the radiological investigation of an object patent thumbnailMethod for the radiological investigation of an object
A method of identifying the material content of an object comprises: providing a radiation source and a radiation detector; irradiating a test object with radiation from the source; collecting at the detector system intensity data for radiation emergent from the test object; resolving the intensity data spectroscopically between a plural set of energy bands; numerically processing the spectroscopically resolved intensity data via the following steps: considering a material attenuation coefficient as a plural set of energy dependent polynomial equations in atomic number with a set of energy dependent coefficients across the said plural set of energy bands; determining a measured attenuation coefficient at each said energy band; calculating therefrom one or more orders of compound proton number and/or effective mass thickness and/or density and for example a compound proton number set comprising plural order powers and preferably plural higher order powers of weighted compound atomic number.. .
08/14/14
20140226231
 Adaptive soft-output detector for magnetic tape read channels patent thumbnailAdaptive soft-output detector for magnetic tape read channels
In one embodiment, a method includes passing a signal through an adaptive noise whitening filter, wherein one or more noise whitening coefficients used in the noise whitening filter are updated using a noise whitening filter coefficient updater, wherein the noise whitening filter is configured to process the signal according to a transfer polynomial: w(d)=1−(p1d+ . .
08/14/14
20140226230
Adaptive soft-output detector for magnetic tape read channels
In one embodiment, a method includes passing a signal through a noise whitening filter, passing the signal through a soft detector to calculate first soft information, passing the signal through the soft decoder to calculate second soft information based on the first soft information, and sending the second soft information to the soft detector, wherein the noise whitening filter is configured to process the signal according to the following transfer polynomial: w(d)=1−(p1d+ . .
08/07/14
20140223193
Signature verification apparatus, signature verification method, program, and recording medium
A signature verification apparatus including a signature acquisition unit configured to acquire a digital signature including first information generated based on a pair of multi-order multivariate polynomials f=(f1, . .
08/07/14
20140222883
Math circuit for estimating a transcendental function
A math circuit for computing an estimate of a transcendental function is described. A lookup table storage circuit has stored therein several groups of binary values, where each group of values represents a respective coefficient of a first polynomial that estimates the function to a high precision.
08/07/14
20140219653
Modified orthogonal polynomials based hybrid coded-modulation for multi-tb/second optical transport
A system and method for transmitting data, including one or more low density parity check (ldpc) encoders configured to encode one or more streams of input data; a signal constellation generation module configured to generate one or more signal constellations; one or more modulators configured to generate one or more signals using hybrid multidimensional coded modulation; a modified orthogonal polynomial generation module configured to generate modified orthogonal polynomials for use as electrical basis functions; and one or more mode-multiplexers and transmitters configured to mode-multiplex and transmit one or more ldpc-coded data streams over a transmission medium.. .
08/07/14
20140218704
High na (numerical aperture) rectangular field euv catoptric projection optics using tilted and decentered zernike polynomial mirror surfaces
A catoptric system for euv lithography includes six freeform reflective surfaces that are specified based on fringe zernike polynomials. Each of the surfaces is tilted and/or decentered in a meridian plane and with respect to a common axis so that image and object planes are parallel.
07/31/14
20140215293
Transmission apparatus and transmission method
An encoding method and encoder of a time-varying ldpc-cc with high error correction performance are provided. In an encoding method of performing low density parity check convolutional coding (ldpc-cc) of a time varying period of q using a parity check polynomial of a coding rate of (n−1)/n (where n is an integer equal to or greater than 2), the time varying period of q is a prime number greater than 3, the method receiving an information sequence as input and encoding the information sequence using equation 1 as a g-th (g=0, 1, .
07/31/14
20140215222
Information processing apparatus, information processing method, and program
Provided an information processing apparatus including a number generation unit configured to generate numbers used in coefficients of terms included in a pair of multi-order multivariate polynomials f=(f1, . .
07/24/14
20140208110
Information processing apparatus, signature generation apparatus, signature verification apparatus, information processing method, signature generation method, and signature verification method
Provided is an information processing apparatus including a message generation unit configured to generate a message based on a pair of quadratic multivariate polynomials f=(f1, . .
07/24/14
20140205088
Information processing apparatus and information processing method
Provided is an information processing apparatus including a message generating unit that generates a message based on a multi-order multivariate polynomial set f=(f1, . .
07/24/14
20140205087
Information processing apparatus, information processing method, program, and recording medium
Provided is an information processing apparatus including a message generating unit that generates messages of n times (where n≧2) based on a multi-order multivariate polynomial set f=(f1, . .
07/24/14
20140204082
Systems and methods for 3d data based navigation using a watershed method
Systems and methods for 3d data based navigation using a watershed method are provided. In at least one embodiment, a method for segmenting three-dimensional frames of data comprises acquiring at least one frame from at least one sensor, wherein the at least one frame provides a three-dimensional description of an environment containing the at least one sensor; and identifying a surface in the at least one frame.
07/17/14
20140198864
Polynomial phases for multi-carrier modulation schemes with time domain windowing
In one aspect, a method includes performing a mapping on bits to form a complex data symbol, applying a frequency rotation mask to the complex data symbol based on a polynomial phase, performing an inverse discrete fourier transform (idft) after applying the frequency rotation mask, applying a time domain window after performing the idft, converting digital data to analog data after applying the time window and transmitting the analog data as an analog signal.. .
07/10/14
20140195881
Bose-chaudhuri-hocquenghem (bch) decoder
A decoder for decoding a set of bits encoded using a bose-chaudhuri-hocquenghem (bch) error-correcting code (ecc) includes a syndrome generator, a key equation solver, and an error bit locator. The syndrome generator receives the set of encoded bits and generates a set of syndromes.
07/10/14
20140195242
Prosody generation using syllable-centered polynomial representation of pitch contours
The present invention discloses a parametrical representation of prosody based on polynomial expansion coefficients of the pitch contour near the center of each syllable. The said syllable pitch expansion coefficients are generated from a recorded speech database, read from a number of sentences by a reference speaker.
07/10/14
20140195193
Displacement detecting device and scale
A scale has marks whose pitch interval changes along a measurement direction in a manner that can be approximated to a quadratic or higher-order polynomial. A comparing unit calculates a difference between first relative position information and second relative position information per unit displacement in a position where a first displacement detecting unit is arranged.
07/10/14
20140192981
Information processing apparatus, signature generation apparatus, information processing method, signature generation method, and program
Provided is an information processing apparatus including a random number generation unit configured to generate a pair of random numbers from a seed, a message generation unit configured to generate a message based on a pair of multi-order multivariate polynomials f=(f1, . .
07/10/14
20140191894
Three-dimensional positioning method
A three-dimensional positioning method includes establishing the geometric model of optical and radar sensors, obtaining rational function conversion coefficient, refining the rational function model and positioning the three-dimensional coordinates. Most of the radar satellite companies and part of the optical satellite only provide satellite ephemeris data, rather than the rational function model.
07/03/14
20140189361
Nformation processing apparatus, signature generation apparatus, information processing method, signature generation method, and program
Provided is an information processing apparatus including a message generation unit that generates a message based on a pair of multi-order multivariate polynomials f=(f1, . .
07/03/14
20140188818
Optimizing a partition in data deduplication
For optimizing a partition of a data block into matching and non-matching segments in data deduplication using a processor device in a computing environment, an optimal calculation operation is applied in polynomial time to the matching segments for selecting a globally optimal subset of a set of matching segments according to overhead considerations for minimizing an overall size of a deduplicated file by determining a trade off between a time complexity and a space complexity.. .
07/03/14
20140185794
Encryption processing apparatus and method
A device that uses homomorphic encryption is disclosed. The device obtains a first encrypted polynomial, a second encrypted polynomial, a first encrypted weight, and a second encrypted weight by respectively encrypting a first polynomial, a second polynomial, a first weight, and a second weight by using a homomorphic encryption scheme, and obtains an encrypted secure distance corresponding to encryption of a secure distance..
06/26/14
20140176955
Inspection methods, inspection apparatuses, and lithographic apparatuses
A method for determining overlay error includes measuring asymmetry of radiation reflected from each of a plurality of targets on a substrate. The plurality of targets include a predetermined overlay offset.
06/26/14
20140174674
Method for controlling a screen, and actuator suitable for such a method
A screen (1) includes a load bar (2), a flexible element (3) supporting the load bar, and a controlled member (4) for winding the flexible member, wherein the member is controlled according to a method that includes controlling the angular movement of the winding member (4) with a temporal set value (θ(t)) of the instantaneous angular position of the winding member, the temporal set value being predetermined from a profile representative of the desired instantaneous axial position for the load bar upon a movement between the first and second positions, using a polynomial function of a degree higher than or equal to 2, which approximates the relation between a value of the instantaneous axial position (h(t)) of the load bar and an instantaneous angular position (γ(t)) of the winding member (4).. .
06/19/14
20140168005
Pulse radar ranging apparatus and ranging algorithm thereof
A pulse radar ranging apparatus and a ranging algorithm thereof are provided. The pulse radar ranging apparatus includes a radio frequency pulse generator, a radio frequency filter, a radio frequency switch and a transceiver aerial.
06/12/14
20140164884
High-performance ecc decoder
Methods for error correction code (ecc) decoding include producing syndromes from a set of bits, which represent data that has been encoded with the ecc. An error locator polynomial (elp) is generated based on the syndromes.
06/12/14
20140164780
Information processing apparatus, signature providing method, signature verifying method, program, and recording medium
An information processing apparatus including a message generating unit that generates n sets of messages based on a multi-order multivariate polynomial set f=(f1, . .
06/12/14
20140160451
Substrate reference image creation method, substrate defect inspection method, substrate reference image creation apparatus, substrate defect inspection unit and non-transitory computer storage medium
In the present invention, a planar distribution of pixel values in a picked-up substrate image is decomposed into a plurality of pixel value distribution components through use of a zernike polynomial for each of substrate images; zernike coefficients of the pixel value distribution components decomposed through use of the zernike polynomial are calculated; a median value and values deviated from the median value by a predetermined value or more are extracted for every zernike coefficients having a same couple of degrees from the calculated zernike coefficients; substrate images having the extracted values are specified; and a substrate image being a defect inspection reference is created by combining the specified substrate images.. .
06/05/14
20140153717
Information processing apparatus, information processing method, program, and recording medium
Provided an information processing apparatus including a message generation unit that generates a message based on a pair of multi-order multivariate polynomials f=(f1, . .
06/05/14
20140152967
Source-collector module wth gic mirror and lpp euv light source
A source-collector module for an extreme ultraviolet (euv) lithography system, the module including a laser-produced plasma (lpp) that generates euv radiation and a grazing-incidence collector (gic) mirror arranged relative thereto and having an input end and an output end. The lpp is formed using an lpp target system wherein a pulsed laser beam travels on-axis through the gic and is incident upon solid, moveable lpp target.
06/05/14
20140152476
Data encoding methods, data decoding methods, data reconstruction methods, data encoding devices, data decoding devices, and data reconstruction devices
In an embodiment, a data encoding method may be provided. The data encoding method may include: inputting data to be encoded; determining a polynomial so that an evaluation of the polynomial at a sum of a first supporting point of the polynomial and a second supporting point of the polynomial corresponds to the sum of an evaluation of the polynomial at the first supporting point and an evaluation of the polynomial at the second supporting point, wherein coefficients of the polynomial are determined based on the data to be encoded; and generating a plurality of encoded data items by evaluating the polynomial at a plurality of supporting points..
05/29/14
20140148078
Interactive talking toy
A method and system for wireless communication are disclosed. The method comprises: the master device generates a sequence code through a specific encoder and transmits the sequence code to each slave device continuously within a preset period according to the communication demand, wherein the specific encoder is a feedback shift register constructed by a specific polynomial, of which the coefficients and the order are in correlation with the communication demand while all of the coefficients and initial values are not equal to 0 at the same time; the preset period is greater than or equal to the sum of a sleeping period and a detecting period of the slave device, which constitutes a sleeping-and-waking cycle; the slave device receives a continuous section of the sequence code in the detecting period, decodes the sequence code through a decoder corresponding to the encoder, and performs corresponding operation according to the decoding result..
05/15/14
20140136931
Error-correcting decoder
Provided is an error-correcting decoder including: a syndrome generation unit for calculating, as a syndrome, coefficients of a residual polynomial that are obtained by dividing received data by a generator polynomial; information bit error pattern generation unit for generating all error patterns of information bits; a check bit error pattern generation unit for calculating, for each of the error patterns of the information bits, an error pattern of check bits based on the syndrome value; and an error correction unit for correcting the error pattern generated for a combination of codes having a weight of the error patterns of the information bits and the check bits smaller than a threshold value.. .
05/15/14
20140136921
Encoding method, decoding method
An encoding method generates an encoded sequence by performing encoding of a given coding rate according to a predetermined parity check matrix. The predetermined parity check matrix is a first parity check matrix or a second parity check matrix.
05/15/14
20140136843
Information processing apparatus and information processing method
Provided is an information processing apparatus including a message generating unit that generates a message based on a multi-order multivariate polynomial set f=(f1, . .
05/15/14
20140135972
Control module for deposition of optical thin films
The deposition controller controls a coating machine used in the deposition of the thin film coatings. The deposition controller is particularly useful for the deposition of multiple layers or co-deposition of multiple materials.
05/15/14
20140135919
Free-form progressive multifocal refractive lens for cataract and refractive surgery
A new type of multi-focal lens that has a free-form progressive multifocal front surface consisting of a 16th order polynomial superimposed on a standard conic base surface is described. The center region of the lens is optimized for distance vision, while simultaneously optimizing the rest of the lens for near vision.
05/15/14
20140132960
Near-null compensator and figure metrology apparatus for measuring aspheric surfaces by subaperture stitching and measuring method thereof
A variable near-null compensator for measuring aspheric surfaces by subaperture stitching includes a pair of counter-rotating cgh phase plates, each of the phase plates having a phase function including two terms z5 and z7 of zernike polynomials. The phase plates are mounted on a pair of precision rotary center-through tables, wherein rotational axes of the pair of precision rotary center-through tables coincide with the optical axes of the phase plates.
05/08/14
20140126328
Methods and systems for improving microseismic event detection and location
Methods and systems for location and/or direction of a hypocenter. The methods may involve one or more of: a) computing a joint probability density function (pdf) which includes polarization pdf and onset time pdf or a time integral of product of detection transforms to estimate the location and/or direction of a hypocenter, where the polarization pdf is generated using a weighted average of differences between measured and computed polarizations; b) computing a time integral of product of modified detection transforms associated with onset times from received data in coalescence microsesimic mapping where modified detection transform is defined as (ε, fd(t)−1); c) resolving 180 degree ambiguities in polarization estimated according to hodogram; d) using polynomial interpolation to tune the location of a hypocenter; and e) computing an integration time interval of 4-d (t,x,y,z) pdf or product of modified detection transform and the restriction on grid nodes..
05/08/14
20140125519
Methods for encoding and recovering gnss ephemeris for over-the-air transmission
A method and apparatus for processing and transmitting precise orbit predictions of satellites in a global navigation satellite system such as navstar-gps which employs curve fitting techniques and a polynomial and sinusoidal model to encode ephemerides, and particularly ephemerides of durations 6 hours or longer, in order to minimize bandwidth requirements over-the-air and nvram storage requirements. The methods also apply to gnss constellations such as galileo or glonass.
05/01/14
20140122552
Flexible prbs architecture for a transceiver
An apparatus is provided. The apparatus comprises a polynomial register having a plurality of bits, a first bus, a second bus, and a transceiver that is coupled to the first bus, the second bus, and the polynomial register.
05/01/14
20140119413
Flexible scrambler/descrambler architecture for a transceiver
An apparatus is provided. A polynomial register having a plurality of bits is provided, where the polynomial register is configured to store a user-defined polynomial.
05/01/14
20140118704
Mobile device, case and attachment with retractable optic
A retractable optic conditionally redirects an image from a scanning laser projector. The retractable optic may be coupled to a mobile device, a mobile device case, or may be part of an attachment.
05/01/14
20140118171
Coordinate compression using polynomials
A method for compressing a plurality of coordinates includes obtaining a plurality of approximately-zero polynomials of dimension dim for a plurality of coordinate parameters. The method further includes selecting dim+1 non-approximately-zero polynomials, and providing a compressed data set that includes the approximately-zero polynomials, the dim+1 non-approximately-zero polynomials, and evaluations of the selected dim+1 non-approximately-zero polynomials based on the coordinates..
04/24/14
20140115429
Method and apparatus for convolutional coding to support multiplexing in a wideband communications system
An approach for encoding a physical layer (pl) header of a pl data frame is provided. The pl header comprises sixteen information bits ui, (i=0, 1, 2, .
04/24/14
20140112340
Source, relay, and destination executing cooperation transmission and method for controlling each thereof
A method for controlling a first node transmitting a transmission message to a plurality of second nodes may be provided. The method includes dividing the transmission message into at least one sub-message, encoding the at least one sub-message to a data stream, determining a first transmission direction of the data stream toward at least one of the plurality of second nodes, based on a polynomial of a channel gain between the first node and the at least one of the plurality of second nodes, and transmitting the data stream to the at least one of the plurality of second nodes, based on the determined first transmission direction..
04/24/14
20140111836
Color uniformity correction using a scanner
Techniques for correcting the color uniformity of a laser printer of a digital press or other device are provided. A process for correcting the color uniformity of a laser printer may include scanning a test page by an inline scanner of a digital press, determining scanner signal data from the test page, determining a scanner polynomial fitted to the scanner signal data, and determining a non-uniform coverage polynomial from the scanner polynomial.
04/17/14
20140108895
Error correction code circuit and memory device including the same
The ecc circuit includes a chien search unit configured to determine whether there is an error in each bit of a data sequence. The chien search unit selects a coefficient of a nonlinear term from among terms of an error locator polynomial as a nonlinear coefficient, separates the error locator polynomial into a first location equation including only linear terms and a second location equation including only nonlinear terms, determines a third location equation by dividing the first location equation by the nonlinear coefficient, determines a fourth location equation by dividing the second location equation by the nonlinear coefficient, and determines whether there is an error for each of the bits by performing an xor operation on a result of the third location equation using the substitution value and a result of the fourth location equation using an arbitrary element of the error locator polynomial as a substitution value..
04/17/14
20140107980
Light emission analyzing device
The light emission analyzing device includes: a first light intensity calculation unit that performs polynomial approximation on a spectroscopic spectrum indicating a light intensity for each wavelength in a container as measured by a spectrometer so as to calculate the light intensity; a second light intensity calculation unit that subtracts, for each wavelength, the light intensity calculated by the first light intensity calculation unit from the light intensity indicated by the spectroscopic spectrum measured by the spectrometer so as to calculate a light intensity corresponding to a bright-line spectrum of a molecule; and a ratio calculation unit that calculates, by using the light intensity calculated by the second light intensity calculation unit, a ratio between (a) a peak value of a molecular spectrum of a first molecule and (b) a peak value of a molecular spectrum of a second molecule.. .
04/17/14
20140105419
Asymmetric polynomial psychoacoustic bass enhancement
Psychoacoustic bass audio signal enhancement can be accomplished using a monotonic, asymmetric polynomial distortion. A non-linear process applies a monotonic, asymmetric polynomial distortion function that has continuous first and second derivatives to generate even and odd harmonics of missing fundamental frequencies.
04/17/14
20140105386
Computing genus-2 curves using general isogenies
An igusa class polynomial over rational numbers is computed from a set of igusa class polynomials modulo a set of small primes. The set of igusa class polynomials modulo a set of small primes is computed by finding all of the maximal curves in the isogeny class for each of the small primes.
04/10/14
20140101513
Method of operating cyclic redundancy check in memory system and memory controller using the same
A method of performing a cyclic redundancy check (crc) operation in a memory system, and a memory controller that uses the same. The method includes initializing a linear feed-back shift register (lfsr) circuit in a crc polynomial, generating crc parity information with respect to input data to be stored in a memory device by using the lfsr circuit, and generating a crc code with respect to the input data based on the crc parity information, such that the initialization of the lfsr circuit is set such that a register initial value of the lfsr circuit is determined to satisfy a condition that, when data input to the lfsr circuit is first state information, the crc parity information generated from the lfsr circuit is second state information..
04/10/14
20140100787
Assay analysis, tracking and reporting system (aatr)
The assay analysis, tracking and reporting (aatr) is a software system to acquire and analyse enzyme-linked immunosorbant assays (elisa) assays for the purspose of antibody screening, detection, concentration, tracking, dose respone, adsorption analysis and reporting using second/third/fourth degree polynomial, 4 and 5 parameter logistics best curve fitting regression analysis. Aatr provides mechanism and capabilities to acquire data directly from microplate reader devices including batch mode and allows for import/export of elisa data and sample ids for the tray.
04/03/14
20140095960
Fully parallel encoding method and fully parallel decoding method of memory system
A memory system, a fully parallel encoding method, and a fully parallel decoding method are disclosed. The encoding method utilizes a plurality of minimal polynomials that constitute a generator polynomial to derive a plurality of roots from the minimal polynomials.
04/03/14
20140095572
Multiply and accumulate feedback
A method and apparatus may be used to evaluate a polynomial by initializing a multiply and accumulate feedback apparatus (260) comprising a multiplier stage (264) having an output coupled to an input of an accumulator stage (267) having an accumulator feedback output (269) selectively coupled to an input of the multiplier stage over a plurality of clock cycles; iteratively calculating a final working loop variable over an additional plurality of clock cycles; multiplying the final working loop variable z and a complex input vector x to compute a final multiplier value; and adding a least significant complex polynomial coefficient to the final multiplier value using the multiplier stage of the multiply and accumulate feedback apparatus to yield a result of the polynomial evaluation.. .
03/27/14
20140089633
Method and apparatus for encoding data address
The present invention relates to the field of communication technologies and discloses a method and an apparatus for encoding a data address, so that attacks can be effectively prevented and resources and costs required to handle a bank conflict are reduced. In solutions provided by embodiments of the present invention, an exclusive-or operation is performed on one or more bits of a received uncoded address by using multiple preset transform polynomials; and an encoded address is obtained according to a result of the exclusive-or operation.
03/27/14
20140089364
Acceleration of multidimensional scaling by vector extrapolation techniques
A method for multidimensional scaling (mds) of a data set comprising a plurality of data elements is provided, wherein each data element is identified by its coordinates, the method comprising the steps of: (i) applying an iterative optimization technique, such as smacof, a predetermined amount of times on a coordinates vector, said coordinates vector representing the coordinates of a plurality of said data elements, and obtaining a modified coordinates vector; (ii) applying a vector extrapolation technique, such as minimal polynomial extrapolation (mpe) or reduced rank extrapolation (rre) on said modified coordinates vector obtaining a further modified coordinates vector; and (iii) repeating steps (i) and (ii) until one or more predefined conditions are met.. .
03/27/14
20140088936
Catalytic zones in continuous catalytic reactors
A method including converting a predetermined number of catalytic zones into a number of finite elements, where the number of finite elements include a number of collocation points represented by a number of mathematical roots in an algebraic system, modeling a catalyst volume including a length of a continuous reactor to have the predetermined number of catalytic zones, representing the first ordinary differential equation, second ordinary differential equation, and third ordinary differential equations in the algebraic system, and performing orthogonal collocation on the number of finite elements in the algebraic system while simultaneously varying at least one of the first number of polynomials and simultaneously varying a percentage of active catalyst and a length of each of the predetermined number of catalytic zones in the second number of polynomials to obtain the mass flow rate of the product for the given chemical reactions.. .
03/20/14
20140082368
Biometric authentication method and computer system
A biometric authentication method for a computer system, the computer system comprising: a computer; and an authentication server, the biometric authentication method including steps of: extracting a first feature from the captured biometric information; generating a template polynomial for enrollment; extracting a second feature from the captured biometric information; generating a template polynomial for authentication; generating a correlation function for calculating a correlation between the template polynomial for authentication and the enrolled template polynomial; calculating a correlation value between the template polynomial for authentication and the enrolled template polynomial by using the generated correlation function, and determining based on the calculated correlation value whether or not the biometric information at the time of authentication coincides with the biometric information enrolled.. .
03/20/14
20140081574
Method to determine local variations of the earth's magnetic field and location of the source thereof
A method to determine the earth's magnetic field vector along a sub-surface wellpath having unknown and possibly changing azimuth, in the presence of a magnetic disturbance caused by a magnetic source external to the wellpath includes estimating the three components of the earth field along the three axes of a magnetic sensor package by a polynomial function of measured depth along the wellpath. Upon removal of the earth's magnetic field from the measurements, the resultant magnetic field of the disturbance is determined and can be used to determine the position and orientation of the source of the disturbance..
03/13/14
20140075162
Digital processor having instruction set with complex exponential non-linear function
A digital processor is provided having an instruction set with a complex exponential function. The digital processor evaluates a complex exponential function for an input value, x, by obtaining a complex exponential software instruction having the input value, x, as an input; and in response to the complex exponential software instruction: invoking at least one complex exponential functional unit that implements complex exponential software instructions to apply the complex exponential function to the input value, x; and generating an output corresponding to the complex exponential of the input value, x.


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Polynomial topics: Polynomial, Error Correction, Microscope, Optical Microscope, Calibration, Polynomial Time, Electronic Device, Square Function, Wireless Communication Device, Redundancy, Cyclic Error, Infinite Impulse Response, Finite Impulse Response, Memory Cells, Memory Cell

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