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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 6904179 | Method for minimal-logic non-linear filter implementation A method for implementing a filter on a signal is disclosed wherein interval membership information is computed and stored in such a manner so as to use a minimal amount of memory thereby allowing filter computation by a small number of deterministic sequence of tab... | 06/07/2005 |
| 6898214 | Technique for monitoring SONET signal A technique for performance-monitoring of a standard SONET signal involves first converting the optical signal to an electrical signal, removing in the framing signal time slot the framing signal for leaving only the framing signal noise in such time slot, and separ... | 05/24/2005 |
| 6877021 | Calculation method and apparatus A method of reducing the amount of computer memory utilized in calculating a formula on a collection of a plurality of series of data values, the method including the steps of: (a) for each data value member of at least one series of the collection, determining the ... | 04/05/2005 |
| 6868431 | Circuit and method for processing data A Finite Impulse Response (FIR) filter circuit (60) includes delay elements (63, 64, 66), multipliers (71, 72, 73, 74), a summing device (78), and a digital integrator (69) at the output of the FIR filter circuit (60). A met... | 03/15/2005 |
| 6862558 | Empirical mode decomposition for analyzing acoustical signals The present invention discloses a computer implemented signal analysis method through the Hilbert-Huang Transformation (HHT) for analyzing acoustical signals, which are assumed to be nonlinear and nonstationary. The Empirical Decomposition Method (EMD) and the Hilbe... | 03/01/2005 |
| 6857002 | Integrated circuit with a mode control selecting settled and unsettled output from a filter In a signal processing integrated circuit having an analog to digital converter and a digital filter having a plurality of taps separated in time, when starting a conversion after a reset or a change of input channel, the filter will have an incomplete set of input ... | 02/15/2005 |
| 6823017 | Systems, methods and computer program products for filtering glitches from measured values in a sequence of code points Glitch filters, methods, and computer program products that utilize the generally monotonically increasing characteristics of the expected levels of code points to detect and remove noise spikes by replacing values in the code point sequence with new values based on... | 11/23/2004 |
| 6822227 | Time-of-flight mass spectrometry utilizing finite impulse response filters to improve resolution and reduce noise A mass spectrometer having an ion accelerator and an ion detector utilizing a finite impulse response filter is disclosed. The ion accelerator generates an ion pulse in response to a start signal. A clock increments a register that indicates the time that has elapse... | 11/23/2004 |
| 6816621 | Method for generating shift-invariant filters A novel method is presented for implementing a filter for processing a discrete signal having the steps of first obtaining a plurality of sample values from the discrete signal; then using each sample value to retrieve a bit vector from a plurality of tables. Afterw... | 11/09/2004 |
| 6809777 | Pixel calculating device A pixel calculating device for performing vertical filtering that includes 16 pixel processing units 1 to 16 and an input buffer group 22 storing 16 pieces of pixel data and filter coefficients. Each of the pixel processing units performs operations using the... | 10/26/2004 |
| 6792444 | Filter devices and methods A filtering method is proposed wherein first several filtering steps (I-III, IV-VI) are made. Each step (I-III,IV-VI) includes: generating a filtered signal (I,IV), rounding this filtered signal (II,V) to a certain accuracy and combining (III,VI) the rounded signal ... | 09/14/2004 |
| 6782297 | Methods and apparatus for data smoothing A method and apparatus for smoothing data comprises adjusting data according to a first smoothing technique and selectively adjusting the data according to a second smoothing technique. The method and apparatus applies a first smoothing technique to a selected datum... | 08/24/2004 |
| 6782404 | Jitter tolerance improvement by phase filtration in feed-foward data recovery systems Over-sampled timing signal jitter tolerance is improved in a q-times over-sampled architecture by phase-sampling the timing signal to produce a plurality of input phase samples φin, where φinε{φ1, φ2, . . . , φq... | 08/24/2004 |
| 6778710 | Method for generating increasing shift-invariant filters A novel method for implementing a filter for processing discrete signal image is presented having the steps of first obtaining a plurality of sample values from said discrete signal image and then using each sample value to retrieve a bit vector from a plurality of ... | 08/17/2004 |
| 6778111 | Multi-dimensional deglitch filter for high speed digital signals A system and method provide deglitch filtering. The system has a voltage-based deglitching filter and timing-based deglitching filter. The voltage-based deglitching filter connects with the timing-based deglitch filter, such that the output of the voltage-based degl... | 08/17/2004 |
| 6775684 | Digital matched filter A digital matched filter has a serial-to-parallel conversion circuit that converts input data fed thereto in serial form into n sets of parallel data and a plurality of delay circuits that each output serial data fed thereto with a delay corresponding to n sets of d... | 08/10/2004 |
| 6768607 | Adaptive dual-frequency notch filter A disk drive comprises an actuator servo control system including at least one disk, an actuator structure comprising at least transducer head for writing and/or reading data from the disk and providing a transducer head position error signal (PES), and a servo comp... | 07/27/2004 |
| 6763323 | Resolution filter for a spectrum analyzer A spectrum analyzer comprises a mixer, which mixes complex conjugate input signal v*(t) into a base band signal x(t) and a resolution filter, which filters the base band signal for narrow band. In accordance with two aspects of the invention, the resolution filter h... | 07/13/2004 |
| 6760740 | Method of calculating line spectral frequencies In a method of encoding a source signal by determining Line Spectral Frequencies (LSFs) for representing Linear Predictive Coding (LPC) filter coefficients, real zeros are determined in associated polynomials P″ and Q″ in cos(mω), with each polynomial being a s... | 07/06/2004 |
| 6760372 | Adaptive signal processor using an eye-diagram metric The invention is embodied in an adaptive filtering system for processing a received signal, including a signal processor having plural states to generate a processed signal from the received signal in accordance with a selected one of the states. A slicer produces f... | 07/06/2004 |
| 6757569 | Filtering process for stable and accurate estimation A filtering process is adapted for eliminating the need of prediscretizing a continuous-time differential model into a discrete-time difference model. It provides a universal robust solution to the most general formulation, in the sense that the system dynamics are ... | 06/29/2004 |
| 6757343 | Discrete wavelet transform system architecture design using filterbank factorization Techniques to overlap states for efficient multilevel wavelet decompositions to reduce memory and delay in discrete wavelet transform in a block-by-block fashion. The input data is segmented into blocks and each block is processed separately, either sequentially or ... | 06/29/2004 |
| 6754805 | Method and apparatus for configurable multi-cell digital signal processing employing global parallel configuration An improved mechanism for performing different types of digital signal processing functions, including correlation, sorting, and filtering operations. The mechanism includes a plurality of computational cells which can be dynamically configured (and reconfigured) in... | 06/22/2004 |
| 6751277 | Filtering device The invention relates, in the field of subband decomposition, to the design of filter banks adapted to the input signal statistics. In most cases, two channel filter banks are iteratively applied over several levels of decomposition, the signals in the resulting sub... | 06/15/2004 |
| 6751640 | Method and apparatus for multiply-accumulate two-dimensional separable symmetric filtering An architecture for a multiply and accumulate two-dimensional separable symmetric filter. The architecture includes a binary tree adder producing sums of samples of an incoming signal. A multiplier then multiplies sums from the binary tree adder with filter coeffici... | 06/15/2004 |
| 6744835 | Methods and apparatus for implementing an interpolation finite impulse response (FIR) filter for use in timing recovery A finite impulse response (FIR) filter employing hybrid coefficients for use in analog-to-digital and digital-to-analog conversion. Clock jitter introduced by the transmission medium may be compensated for by calculating an early interpolated data value and a late i... | 06/01/2004 |
| 6738734 | Empirical mode decomposition apparatus, method and article of manufacture for analyzing biological signals and performing curve fitting A computer implemented physical signal analysis method includes four basic steps and the associated presentation techniques of the results. The first step is a computer implemented Empirical Mode Decomposition that extracts a collection of Intrinsic Mode Functions (... | 05/18/2004 |
| 6721770 | Recursive state estimation by matrix factorization A filter is disclosed for recursive state estimation of a process by matrix factorization. The filter preferably takes the general form of P=XY, where P is a matrix of previous state and/or current observations, Y is a matrix of functions that are used to model the ... | 04/13/2004 |
| 6711598 | Method and system for design and implementation of fixed-point filters for control and signal processing A method and system is disclosed for design and implementation of fixed-point filters from floating-point filters. A design sequence for designing a fixed-point filter for a system is selected. A low-order floating-point filter and a first set of parameters associat... | 03/23/2004 |
| 6701335 | Digital frequency response compensator and arbitrary response generator system A digital signal processing system capable of compensating for frequency response variations and generating a response characteristic that complies with a provided specification. The system automatically generates digital filters to provide this compensat... | 03/02/2004 |
| 6680644 | Digital interpolation window filter for phase-locked loop operation with randomly jittered reference clock A system and method for filtering a jittered clock is disclosed. The filter of the present invention may check if a reference clock is received at a point in time within a pre-defined window of time. If the clock is received at a point in time within the ... | 01/20/2004 |
| 6680476 | Summed time-of-flight mass spectrometry utilizing thresholding to reduce noise A summed TOFMS having a filter for identifying detector outputs that are likely the result of noise rather than ions striking the ion detector. The TOFMS stores a plurality of data values at locations specified by a register that counts clock pulses. The ... | 01/20/2004 |
| 6668087 | Filter arithmetic device A filter operation apparatus according to the present invention involves a vertical and horizontal half-pixel motion compensation and vertical and horizontal intra-loop filtering means 100 comprising a first pixel delay means 200, a second pixel delay mea... | 12/23/2003 |
| 6668013 | Digital filter A digital filter of the present invention is an FIR type digital filter arranged such that an input data converting circuit samples input data at a rate N times as fast as a sampling frequency fs, and outputs the input data for a 1/N period of a sign inte... | 12/23/2003 |
| 6658440 | Multi channel filtering device and method A filter comprising of an internal memory for storing data and coefficients; an address generation unit, for generating memory addresses; a multiply and accumulate unit (i.e.--MAC unit), for performing multiply and accumulate functions. The filter can ope... | 12/02/2003 |
| 6643323 | Digital filtering method A method of implementing a digital filter utilizes a fast and accurate reciprocal estimate function to generate and recharacterize the digital filter on the fly. The reciprocal estimate function operates to synthesize a digital filter rapidly and efficien... | 11/04/2003 |
| 6643674 | Digital filtering method and device and sound image localizing device A series of digital data to be filtered is divided into a plurality of frames, and f samples of the digital data of each of the frames are burst-transmitted via a computer bus. In transferring the digital data of any one of the frames, n samples of the di... | 11/04/2003 |
| 6639948 | Fractional delay digital filter A device is presented for processing digital signals conveyed between a common port and many particular ports. The device includes a linear processing module. The module includes filters, which simultaneously apply a phase-shift and a chosen amplitude emp... | 10/28/2003 |
| 6633894 | Signal processing arrangement including variable length adaptive filter and method therefor A signal processor includes an adaptive filter that generates an output signal as a function of an input signal and of weighting coefficients stored in a memory. An error detector generates an error signal as a function of the output signal. The error sig... | 10/14/2003 |
| 6631273 | Method and apparatus for filter selection from a frequency synthesizer data Modern portable communications units, and in particular cellular telephones, can contain several frequency bands for receiving and several frequency bands for transmitting signals. Typically these units contain a baseband unit and a frequency synthesizer ... | 10/07/2003 |
