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8107522 Methods and apparatus for determining receiver filter coefficients for a plurality of phases  
Methods and apparatus are provided for determining receiver filter coefficients for a plurality of phases. One or more coefficients for a receiver filter are determined by determining a first...
8107517 Average-tap energy based thresholding for channel estimation in multi antenna systems  
Techniques to facilitate estimating the frequency response of a wireless channel in an OFDM system are provided. The method and systems allow for combining signal information across multiple...
8103711 Dispersion compensation using digital infinite impulse response filtering  
Methods and systems for novel infinite impulse response filtering system to allow DC using a complex input signal having a real and imaginary part of the complex input signal yr and yi to produce...
8098782 Communications device including a filter for notching wideband receive signals and associated methods  
A communications device includes pre-processing circuitry for processing a received wideband complex signal including an undesired narrowband interference component therein, and for determining a...
8098781 Communications system using adaptive filter with normalization circuit  
A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has a plurality of non-adaptive and adaptive filter taps with weighted coefficients...
8094763 Communications system using adaptive filter with adaptive update gain  
A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has a plurality of non-adaptive and adaptive filter taps with weighted coefficients...
8093990 Far field RFID reader with blocking  
A far field radio frequency identification (RFID) reader includes a baseband processing module, a transmitter section, and a receiver section. The receiver section includes a low noise amplifier...
8081722 Communications system and device using simultaneous wideband and in-band narrowband operation and related method  
A communications device includes a signal input for receiving both wideband and in-band, narrowband communication signals having wideband communications data that is transmitted over a wideband...
8076955 Configurable logic device  
The configurable logic device comprises a plurality of configurable logic cells (2). A configurable logic cell comprises a plurality of multi-bit registers (20a, 20b, 20c, 20d). At least one is...
8077796 Methods and arrangements for communicating in a multiple input multiple output system  
Systems and methods for utilizing new communication standards in wireless local area networks are provided that also support legacy wireless stations. The method can include user equipment...
8078659 Reduction of digital filter delay  
An apparatus for reducing a digital filter delay includes means for determining the magnitude response of a desired filter. Means form the real cepstrum of this magnitude response. Means transform...
8073890 Continuous high-frequency event filter  
A circuit and method for generating an active output signal in response to detecting N events, which are represented by an event signal. A counter circuit is configured to increment and decrement...
8069197 Method and apparatus for periodic noise suppression in transient signals  
A system for cyclical noise removal from a transient signal is employed with a transient sensor for a signal. A signal conditioner is connected to the transient sensor for processing the signal. A...
8059706 Method and system for transmission and/or reception of signals utilizing a delay circuit and DDFS  
Aspects of a method and system for transmission and/or reception of signals utilizing a delay circuit and a DDFS are provided. In this regard, a first signal may be delayed by 90°, via a plurality...
8050405 Shared key encryption using long keypads  
Methods of securely communicating a message from a first terminal to a second terminal include generating a keypad including a random sequence of bits having a length L, encrypting the message at...
8044670 Apparatus and method for determining a resonant frequency of a wind turbine tower  
An apparatus for determining a resonant frequency of a wind turbine tower is provided. The apparatus includes a processing unit configured to receive an acceleration measurement value, the...
RE42809 Method and apparatus for increasing bandwidth in sampled systems  
Systems that sample a continuous analog time-domain signal.The invention is particularly applicable to systems that sample a continuous analog time-domain signal and whose analog components have a...
8031978 Method and apparatus of image processing to detect edges  
An edge detection filter comprising an array of filter coefficients having an odd number of rows and columns, a first set of zero coefficients extending along a direction traversing the array...
8028013 Fast filtering means and filtering and decimation methods  
The invention relates to a hardware implemented filtering method including establishing a representation DIS of the derivative of at least a part of a time-quantized input signal IS, and...
8019803 Method and device for restoring degraded information  
The present invention provides a technology which can perform a precise restoration to a distribution of original information by carrying out an iterative calculation using only a distribution of...
8014469 Pipeline architecture for multi-slot wireless link processing  
A wireless communication device processes N Radio Frequency (RF) bursts contained within N slots of a digital communications time divided frame, wherein N is a positive integer greater than one....
8015368 Processor extensions for accelerating spectral band replication  
Enhancements to hardware architectures (e.g., a RISC processor or a DSP processor) to accelerate spectral band replication (SBR) processing are described. In some embodiments, instruction...
8005671 Systems and methods for dynamic normalization to reduce loss in precision for low-level signals  
A normalization factor for a current frame of a signal may be determined. The normalization factor may depend on an amplitude of the current frame of the signal. The normalization factor may also...
8001169 Spread spectrum method with elimination of sub-bands  
A spread spectrum method for a digital input signal (x(n)), comprising the following steps: coefficients of a reversible digital periodical linear filter are selected in such a way that the...
7991813 Methods and systems for efficient filtering of digital signals  
A method in a signal processor for filtering samples in a digital signal is provided. An approximate filtered sample is generated as a function of four samples of the digital signal. A correction...
7986756 Method and apparatus for filtering noisy estimates to reduce estimation errors  
Techniques for filtering noisy estimates to reduce estimation errors are described. A sequence of input values (e.g., for an initial channel impulse response estimate (CIRE)) is filtered with an...
7979483 Multiplexed proportional-integral-derivative filter architecture (Mux-PID) for control-loop applications  
A multiplexed digital proportional-integral-derivative filter receives error signal samples and operates in different states during sub-cycles of a single system cycle. A single multiplier and a...
7958176 Identifying filter coefficients  
Techniques for identifying coefficients are described. A technique collects sample input values to the filter and identifies desired output values from the filter for the collected sample input...
7953579 Jittery signal generation with discrete-time filtering  
The computer-implementable method allows for the fast creation of a multi-unit interval data signal suitable for simulation. The created signal represents the output of an otherwise ideal Discrete...
7947891 Resonance tone generating apparatus and electronic musical instrument  
A product-sum operation circuit has delay circuits of the first to the (n−1)th stage for delaying musical tone data, multiplying circuits 60-6(n−1) for multiplying the musical signal data or the...
7949520 Adaptive filter pitch extraction  
An enhancement system extracts pitch from a processed speech signal. The system estimates the pitch of voiced speech by deriving filter coefficients of an adaptive filter and using the obtained...
7937428 System and method for generating and using a dynamic bloom filter  
A dynamic Bloom filter comprises a cascaded set of Bloom filters. The system estimates or guesses a cardinality of input items, selects a number of hash functions based on the desired false...
7930334 Gain control coding within proportional-integral-derivative filters for control-loop applications  
Proportional, integral and derivative error gains within a proportional-integral-derivative filter are selected based on a magnitude of the error value and with successively higher gain values...
7917561 Partially complex modulated filter bank  
An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband...
7912885 Method and system for filtering of networked, synchronized measurements  
A system processes discrete digital data according to a function, the discrete digital data including data values and time stamps, the time stamps being at non-uniform time intervals according to...
7912884 Method and apparatus for implementing finite impulse response filters without the use of multipliers  
A finite impulse response filter is implemented as a sum of individual component, running-sum filters. The sum of all of the component filters required for a desired filter response is calculated...
7907690 Interference cancellation system and method using impulse response  
An interference cancellation (IC) system and method for use within a 1553 communication system comprising a data bus carrying primary signals having a 1553 component and a non-1553 component are...
7908103 System and methods for determining masking signals for applying empirical mode decomposition (EMD) and for demodulating intrinsic mode functions obtained from application of EMD  
A computer-implemented method of signal processing is provided. The method includes generating one or more masking signals based upon a computed Fourier transform of a received signal. The method...
7908306 SRC with multiple sets of filter coefficients in memory and a high order coefficient interpolator  
Systems and methods for converting a data stream from a first sample rate to a second sample rate using a sample rate converter that employs selectable filters. In one embodiment, the filters are...
7903768 Method and apparatus for implementing matched filters in a wireless communication system  
The present invention discloses a method and apparatus for implementing matched filter in a system using QPSK modulation. In the present invention, a multiplier is changed as a multiplexer by...
7904496 Method and system for selecting effective tap values for a digital filter  
Systems and methods are provided for determining effective tap values for a digital filter. A first plurality of vectors is generated, wherein each of the first plurality of vectors represents a...
7904495 Repetitive controller to compensate for odd harmonics  
A repetitive controller scheme with negative feedback and feedforward introduces infinitely many poles on the imaginary axis located at the resonant peaks. The feedforward introduces zeros, which...
7904497 Hardware arithmetic engine for lambda rule computations  
A recursive lambda rule engine (114, 302) includes a first multiplier (204) that sequentially multiplies each of series of inputs by a nonlinearity determining parameter and supplies results to a...
7904841 Method and system for optimizing digital filters  
A method and system is described for optimizing a digital filter defined by coefficients that are multiplied by input data and accumulated to generate output data. A factorization set of candidate...
7889823 Timing recovery in a parallel channel communication system  
A parallel channel timing recovery circuit. The parallel timing recovery circuit comprises multiple prefilters receiving parallel channel outputs and providing prefilter outputs. Multiple sampling...
7885421 Method and system for noise measurement with combinable subroutines for the measurement, identification and removal of sinusoidal interference signals in a noise signal  
An approach is provided for measuring, identifying, and removing at least one sinusoidal interference signal (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) in a noise signal (w(t), w(μ·Δt)). A frequency range...
7864905 Interference alleviation equalizing apparatus of multi-carrier communication system and method thereof  
An apparatus and a method for equalizing a received signal to generate an equalized signal are disclosed. The apparatus includes a channel estimator for generating a channel estimation value...
7865347 Finite impulse response (FIR) filter compiler for estimating cost of implementing a filter  
A method, apparatus and a filter compiler system for building a filter is disclosed. The filter compiler system includes a filter resource estimator. The filter resource estimator is configured to...
7864884 Signal detection in OFDM system  
A solution for signal detection in a radio receiver receiving multicarrier signals is disclosed. According to the provided solution, the radio receiver receives a radio signal and converts the...
7860200 Communications system using adaptive filter that is selected based on output power  
A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has an input, a plurality of non-adaptive and adaptive filter taps with weighted...