Bizarre Patents
Nicotine Containing Dental Floss
Keep away cavities and cancer at the same time.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8108453 | System and method for filter response switching A system and method are provided for efficiently switching a loop bandwidth using stored values in a digital filter of a phase-locked loop system. In a first timeslice, an input signal is digitally filtered using base coefficients multiplied by stored filter output ... | 01/31/2012 |
| 8082286 | Method and system for soft-weighting a reiterative adaptive signal processor This invention is an improvement upon the basic adaptive signal processors, the Multi-Stage Wiener Filter and the cascaded canceller. The invention combines the concepts of soft weighting the adaptive weights of either type of processor disclosed herein with reitera... | 12/20/2011 |
| 8069198 | Integrated circuit having a filter circuit A filter circuit arrangement comprising a circuit configuration having non-linear transmission characteristics for equalizing an input signal is disclosed. In one embodiment, the circuit configuration having the non-linear transmission characteristics is provided in... | 11/29/2011 |
| 8041757 | Low power and low complexity adaptive self-linearization A method of signal processing comprises receiving an unknown input signal that includes a distorted component and an undistorted component, the unknown input signal having a sampling rate of R; and performing self-linearization based at least in part on the unknown ... | 10/18/2011 |
| 8005882 | System and method for determining application of adaptive filter A system for determining application of an adaptive filter includes a signal sensor to sense a detection signal; an adaptive filter to filter the sensed signal adaptively; and a module for determining application of an adaptive filter to analyze the sensed signal an... | 08/23/2011 |
| 7979484 | Method and system for accelerating the computation of adaptive weights using matrix inverse calculations A system and method is provided for performing matrix inverse functions, for example, for use within Space-Time Adaptive Processing (STAP). The methods use parallelism of a Forward/Backward substitution algorithm in two dimensions to increase a speed of execution of... | 07/12/2011 |
| 7917563 | Read channel processor Adapting a read channel processor is disclosed. Adapting includes determining a target output for input data from a variable target function, determining a filter output corresponding to the input data from a programmable filter having programmable filter coefficien... | 03/29/2011 |
| 7917562 | Method and system for estimating and applying a step size value for LMS echo cancellers Disclosed is an improved method and apparatus for estimating and applying a step size value for a least mean squares echo canceller. A power estimate of an excitation signal is compared to a reference power level to determine a shift adjustment. The shift adjustment... | 03/29/2011 |
| 7844651 | Equalizer, group delay compensation circuit for the equalizer and method of compensating for group delay in the equalizer An equalizer, group delay compensation circuit for the equalizer and method of compensating for group delay may improve group delay characteristics in the equalizer. The equalizer circuit may include a first low pass filter configured to filter a received input sign... | 11/30/2010 |
| 7774396 | Method and device for low delay processing Adaptive processing of an input signal is achieved by offline analysis, with inline processing comprising an adaptive filter. The method comprises passing the input signal through an adaptive time domain filter to produce an output signal. The input signal and/or ou... | 08/10/2010 |
| 7739320 | Waveform equalizer, waveform equalization method, and integrated circuit A waveform equalizer includes a filter unit, an error estimation unit, a tap coefficient storage unit, and an update amount calculation unit which includes an intermediate calculation unit and an update amount setting unit. Coefficient update amount ΔCi(... | 06/15/2010 |
| 7739321 | Method and adaptive filter for processing a sequence of input data An adaptive filter that processes a sequence of input data includes a backward-looking predictive filter, which responsive to the input data and predictive filters the input data using a first set of filter tap weights and provides first predictive filtered data ind... | 06/15/2010 |
| 7702711 | Reduced complexity recursive least square lattice structure adaptive filter by means of estimating the backward and forward error prediction squares using binomial expansion A method for reducing a computational complexity of an m-stage adaptive filter is provided by expanding a weighted sum of forward prediction error squares into a corresponding binomial expansion series, expanding a weighted sum of backward prediction error squares i... | 04/20/2010 |
| 7689637 | Adaptive filtering method and related device An input signal is filtered for creating an output signal using an adaptive filter. An error signal is derived from the output signal. The adaptive filter has coefficient whose value can be modified. A value of a coefficient is modified using a derived updating amou... | 03/30/2010 |
| 7631028 | Statistical control of adaptive ocular filter stability An electroencephalograph system and method for controlling the stability of an adaptive filter during high noise spikes in ocular sensor channels. The method comprises receiving a signal from at least one sensor and determining when an adaptive filter algorithm is s... | 12/08/2009 |
| 7552158 | Digital filter and digital broadcasting receiver having the same The present invention relates to a digital filter capable of computing a tap without output delay due to the filter operation in a symbol time, and a digital broadcasting receiver having the same. Particularly, filter output is obtained within a clock period, one mu... | 06/23/2009 |
| 7533140 | Method and apparatus for enhancing processing speed for performing a least mean square operation by parallel processing The present invention is related to a method and apparatus for enhancing processing speed for performing a least mean square operation by parallel processing. The input data are subdivided into a plurality of groups and processed by a plurality of adaptive filters i... | 05/12/2009 |
| 7472151 | System and method for accelerating arithmetic decoding of video data Presented herein is a system and apparatus for accelerating arithmetic decoding of encoded data. In one embodiment, there is presented a symbol interpreter for decoding CABAC coded data. The symbol interpreter comprises a first memory, a CABAC decoding loop, and a s... | 12/30/2008 |
| 7436968 | Adaptive noise reduction method and device An adaptive noise reduction method and apparatus capable of reducing efficiently variable period noise from a main input is provided. The pitch of a noise waveform to be reduced can be variable with a change in a period of motor noise occurring when the revolution p... | 10/14/2008 |
| 7433908 | Selective-partial-update proportionate normalized least-mean-square adaptive filtering for network echo cancellation A reduced-complexity, fast converging adaptive filter may be used for network echo cancellation applications, including applications having sparse echo paths. The new filter, referred to as a selective-partial-update proportionate NLMS filter, may be based on a prop... | 10/07/2008 |
| 7424407 | Removing electrical noise in systems with ADCs Signal processing systems and methods are described that include a multi-analog receiver front end with adaptive filtering. The multi-analog receiver front end uses two or more analog-to-digital converters (ADCs) to remove additive electrical noise present in the an... | 09/09/2008 |
| 7421021 | Adaptive signal equalizer with adaptive error timing and precursor/postcursor configuration control An adaptive signal equalizer with a feedforward filter in which the feedback error signal and corresponding incoming data signal are dynamically aligned in time using signal interpolation, and further, to control the precursor/postcursor filter taps configuration, t... | 09/02/2008 |
| 7421022 | Method for robust and stable convergence of blind LMS based adaptation of coefficients for a continuous time FFE-DFE A continuous time electronic dispersion compensation architecture using feed forward equalization and a non-linear decision feedback equalization forms an output signal by a linear combination of successively delayed versions of the input signal and the sliced outpu... | 09/02/2008 |
| 7415065 | Adaptive filtering in the presence of multipath Adaptively analyzing an observed signal to estimate that part of the signal that best corresponds to a steering vector. Modifying the steering vector by convolution of the steering vector with a vector estimating the effect of multipath on the observed signal. ... | 08/19/2008 |
| 7412472 | Apparatus and method for filtering a signal A method, system, and computer program are provided for filtering a signal. The method, system, and computer program receive a sample of a signal being filtered and identify a bias associated with the sample. The bias includes a cushion and an increment. The method,... | 08/12/2008 |
| 7406122 | Equalizer and method of setting initial value for same An equalizer is provided which is capable of making a filter factor to be set in the equalizer having an equalizing filter converge rapidly and a method is provided for setting an initial value for the rapid convergence of the filter factor. In the equalizer having ... | 07/29/2008 |
| 7400694 | Method and apparatus for eye-opening based optimization An eye opening measurement technique, that does not interrupt a receiver's normal operation, is used as a metric for optimizing any selected parameters of the receiver's operation. If eye opening size decreases, as a result of a change to a receiver parameter, the p... | 07/15/2008 |
| 7386044 | Computation of decision feedback equalizer coefficients with constrained feedback tap energy A Decision Feedback Equalizer (DFE) system includes a DFE and a DFE coefficients processor. The DFE receives an uncompensated signal and operates upon the uncompensated input using DFE coefficients to produce an equalized output. The DFE coefficients processor formu... | 06/10/2008 |
| 7382827 | Computation of decision feedback equalizer coefficients with constrained feedback tap energy Directly computing Feed Forward Equalizer (FFE) coefficients and Feed Back Equalizer (FBE) coefficients of a Decision Feedback Equalizer (DFE) from a channel estimate. The FBE coefficients have an energy constraint. A recursive least squares problem is formulated ba... | 06/03/2008 |
| 7372927 | Digital filter for software-defined radio system, digital intermediate frequency signal processing apparatus having the digital filter, and method thereof Disclosed is a receiver digital filter for a digital IF signal processor suitable for the specification of each communication standard in a communication system that supports at least one communication standard. The filter for each standard is constructed as one blo... | 05/13/2008 |
| 7365660 | Method and device for decoding syntax element in CABAC decoder A method and a device for decoding a syntax element in a context-based adaptive binary arithmetic coding (CABAC) decoder perform a binary arithmetic coding (BAD) process and a binarization matching (BM) process in parallel. The method includes determining an expecte... | 04/29/2008 |
| 7359135 | Dynamically adapting a magnetic tape read channel equalizer A read channel equalizer of a magnetic tape drive which equalizes digitally sampled magnetic signals detected by a read head is dynamically adapted. A detector of equalizer dynamic adaptation logic compares equalizer output signals to desired values that are based o... | 04/15/2008 |
| 7359521 | Aliasing cancellation in audio effects algorithms A method for effecting aliasing cancellation in an audio effects algorithm using a delay modulated signal, derived from interpolation of a delay modulator at an instantaneous sampling frequency, including: determining the instantaneous sampling frequency 1/Tisf... | 04/15/2008 |
| 7358798 | Nonlinear filter A system and a method are disclosed for converting analog signal to digital. An analog to digital converter system comprises an analog to digital converter (ADC) and an adaptive filter coupled to the ADC, wherein the adaptive filter is coupled to the ADC in a feedfo... | 04/15/2008 |
| 7353245 | Adaptive filter coefficient determination Operation of an adaptive filter includes determining a first filter coefficient and determining a second filter coefficient based on the first filter coefficient, in one embodiment, and in another embodiment includes comparing pseudo-error counts generated for each ... | 04/01/2008 |
| 7342983 | Apparatus and method for digitally filtering spurious transitions on a digital signal A digital filtering apparatus and method for digitally filtering out undesirable or invalid data from data signal lines. The digital filtering apparatus includes a digital delay element having one or more outputs, a comparator connected to the outputs of the digital... | 03/11/2008 |
| 7340218 | Pulsed signal device characterization employing adaptive nulling and IF gating A receiver channel, test system and method employ adaptive nulling to filter a targeted frequency component from a pulsed signal to produce a filtered pulsed signal. The filtered pulsed signal facilitates measuring pulsed performance parameters of a device under tes... | 03/04/2008 |
| 7340064 | Active noise control system An active noise control system is provided which cancels a noise using a secondary noise from a speaker that is operated in accordance with an output from an adaptive controller. The system is configured such that microphone monitor interrupts a switch to thereby st... | 03/04/2008 |
| 7339987 | Device for correcting a receiving signal The invention relates to a device for correcting a receiver signal which is associated with an emission signal transmitted in a distorted transmission system. The emission signal comprises periods which can be determined by analyzing the received signal wherein dete... | 03/04/2008 |
| 7340063 | Feedback cancellation with low frequency input The invention relates to a method for canceling feedback in an acoustic system comprising a microphone, a signal path, a speaker and means for detecting presence of feedback between the speaker and the microphone, the method comprising providing a LMS algorithm for ... | 03/04/2008 |
