| Patents for H03H 17 - Networks using digital techniques (9,654) |
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| 12/09/2009 | CN100568724C Sound signal processing system and its related device and method |
| 12/08/2009 | US7631027 Efficient multichannel filtering for CDMA modems |
| 12/03/2009 | DE102008024535A1 Verfahren zum Optimieren einer mehrstufigen Filterbank sowie entsprechende Filterbank und Hörvorrichtung A method for optimizing a multi-stage filter bank and corresponding filter bank and hearing |
| 12/03/2009 | DE102008024534A1 Hörvorrichtung mit einem Entzerrungsfilter im Filterbank-System Hearing by an equalization filter in the filter bank system |
| 12/03/2009 | DE102008024490A1 Filterbanksystem für Hörgeräte Filter bank system for hearing aids |
| 12/02/2009 | EP2127075A2 Method and device for reducing ringing in a filter output signal |
| 12/02/2009 | CN101594159A Method and device for digital front-end filtering |
| 12/02/2009 | CN101594123A Method for establishing equivalent parallel filter, voice transmission method, device and system |
| 12/02/2009 | CN101594122A Finite impulse response filter and method |
| 11/25/2009 | EP2124485A2 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods |
| 11/25/2009 | EP2124335A2 Method for optimising a multi-stage filter bank and corresponding filter bank and hearing aid |
| 11/25/2009 | EP2124334A2 Filter bank system for hearing aids |
| 11/25/2009 | CN101588329A Spread spectrum communication multiphase matching wave filter capture circuit and design method thereof |
| 11/19/2009 | DE102008026518A1 Automatic computer-based digital filter i.e. low pass filter, coefficients determining method for signal processing device, involves uniquely determining coefficients of digital filter from predetermined and non-predetermined input vectors |
| 11/18/2009 | EP2119007A1 Digital filter |
| 11/18/2009 | EP1639703B1 Rational sample rate conversion |
| 11/18/2009 | CN100561863C Filter arrangement for digital recursive filtering |
| 11/11/2009 | CN101577536A Method for realizing improved LMS algorithm |
| 11/11/2009 | CN101577535A Device and method for sample rate conversion |
| 11/11/2009 | CN101577534A Digital filtering frequency self-compensation circuit |
| 11/11/2009 | CN100559713C Reconfigurable digital filter having multiple filtering modes |
| 11/11/2009 | CN100559712C Filter system and method for filtering analog signal |
| 11/10/2009 | US7616720 Multirate digital transceiver |
| 11/05/2009 | WO2009133948A1 Audio processing device and audio processing method |
| 11/04/2009 | CN201341118Y Novel low pass wave filter circuit |
| 11/03/2009 | US7613759 Low-complexity nonlinear filters |
| 11/03/2009 | CA2179871C Method for reducing noise in speech signal |
| 10/28/2009 | CN101569108A Common mode adaptive equalization |
| 10/28/2009 | CN101567676A Wave filtering method |
| 10/28/2009 | CN101567183A Digital camera audio processor |
| 10/28/2009 | CN100555864C A digital filtering method applied on course angle |
| 10/28/2009 | CN100555863C Method and device for implementing bandpass filtering using cascade integration comb filter |
| 10/28/2009 | CN100555862C Aliasing reduction using complex-exponential modulated filterbanks |
| 10/28/2009 | CN100555860C Micro-wave mm wave broadband and low consumption digital analog compatible phase shifter |
| 10/27/2009 | US7609297 Configurable hardware based digital imaging apparatus |
| 10/21/2009 | EP2110676A2 Method for calculating a useful signal |
| 10/21/2009 | CN101563623A MRI system with direct digital receiver using resampling |
| 10/15/2009 | WO2009092837A4 Method and apparatus for digital filtering of signals |
| 10/15/2009 | US20090259479 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 10/14/2009 | EP2109098A2 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples |
| 10/14/2009 | CN101558567A Method and apparatus for detecting the presence of a signal in a frequency band using non-uniform sampling |
| 10/14/2009 | CN100550622C Digital signal filtering apparatus and method having down sampling function |
| 10/13/2009 | US7602875 Sampling rate conversion method and apparatus |
| 10/08/2009 | WO2009121263A1 Filtering method and filter |
| 10/08/2009 | DE102008016997A1 Time-dependent digital signal e.g. suction tube pressure signal, processing method for motor vehicle, involves updating value of size of change of signal as function of value of difference signal formed from time-dependent digital signal |
| 10/07/2009 | EP1221197B1 Digital filter design method and apparatus for noise suppression by spectral substraction |
| 10/07/2009 | CN101553984A Degital filter, its synthesizing device, synthesizing program and synthesizing proram recording medium |
| 10/07/2009 | CN100547922C Drop sampling filtering process and drop sampling filter |
| 10/01/2009 | WO2009120504A1 Method and system for decimating pulse width modulated (pwm) signal |
| 10/01/2009 | US20090244395 N dimensional non-linear, static, adaptive digital filter design using d scale non-uniform sampling |
| 10/01/2009 | DE19711715B4 Signalverarbeitungsvorrichtung zur Umsetzung eines Vielfachbit-Signales, in dem Unterdaten (Sub-Daten) an ein Ein-Bit-Signal angefügt sind A signal processing apparatus for converting a multi-bit signal in the sub data (sub-data) are added to a one-bit signal |
| 10/01/2009 | DE102009013892A1 CIC-Filter, Filtersystem und Satellitensignalempfangsschaltung CIC filter, filter system and satellite signal receiving circuit |
| 09/30/2009 | EP1616461B1 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods |
| 09/30/2009 | EP1195015B1 Method and device for synchronising mobile telephone receivers in a mobile telephone system |
| 09/30/2009 | CN101546993A Method and device for whitening filtration with self-adapting iterations |
| 09/30/2009 | CN101546992A Filtering method and filter |
| 09/23/2009 | EP2102983A2 High pass filter |
| 09/23/2009 | CN101542901A Noise removing device, weight measuring device, noise removing method, and digital filter designing method |
| 09/23/2009 | CN101540595A Multistage mean value digital filter and filtering method |
| 09/23/2009 | CN100544203C Nonlinear filter |
| 09/22/2009 | US7592932 Method and device for interpolating or decimating a signal |
| 09/17/2009 | WO2009112825A1 Audio processing |
| 09/17/2009 | US20090234646 Method for Reduction of Aliasing Introduced by Spectral Envelope Adjustment in Real-Valued Filterbanks |
| 09/17/2009 | DE102004024823B4 Verfahren zur Verringerung eines Rechenaufwands in nichtlinearen Filteranordnungen sowie entsprechende Filteranordnungen A method for reducing computational complexity in a non-linear filter assemblies and filter assemblies corresponding |
| 09/16/2009 | CN100542025C Asynchronous signal input device and sampling frequency conversion device and the method |
| 09/16/2009 | CN100542024C Digital signal processing device and method |
| 09/16/2009 | CN100542023C Time base adjustment method and data processing device |
| 09/15/2009 | US7590675 Digital filter, design method thereof, design device, and digital filter design program |
| 09/15/2009 | US7590543 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 09/11/2009 | WO2009090135A3 Digital optimal filter for periodically alternating signals |
| 09/10/2009 | US20090228615 Vehicle Computer System with Audio Entertainment System |
| 09/10/2009 | DE102005018858B4 Digitales Filter und Verfahren zur Bestimmung seiner Koeffizienten Digital filter and method for determining its coefficients |
| 09/10/2009 | DE102005004371B4 Filterverfahren und Filtervorrichtung mit einer Mehrzahl von Filterzweigen Filtering method and filter device having a plurality of filter branches |
| 09/10/2009 | DE102004060366B4 Digitalfilteranordnung, Verwendung der Digitalfilteranordnung und Verfahren zur Steuerung eines Umschaltzeitpunktes in einem digitalen Filter Digital filter assembly, using the digital filter assembly and method for controlling a switchover time in a digital filter |
| 09/09/2009 | EP2097981A1 Method and apparatus for detecting the presence of a signal in a frequency band using non-uniform sampling |
| 09/09/2009 | EP2097759A2 Method and apparatus for implementing finite impulse response filters without the use of multipliers |
| 09/09/2009 | CN100538694C Wave digital filter and method for filtering signal |
| 09/08/2009 | US7587440 Digital filter and filtering method |
| 09/02/2009 | EP2095505A1 Analogue implementation of a sampled filter with finite impulse response using a controllable-gain transconductance amplifier |
| 09/02/2009 | EP1205015B1 Cvt transient filter |
| 09/02/2009 | CN201303315Y Novel filter programmer |
| 09/02/2009 | CN100536331C Semi-parallelism wave filter and implementing method thereof |
| 09/01/2009 | US7584235 Variable passband autoregressive moving average filter |
| 08/27/2009 | WO2009104710A1 Data conversion device, program and method |
| 08/27/2009 | WO2009104278A1 Filter device |
| 08/27/2009 | WO2009103624A1 Method and device for improving the passband of a physical system |
| 08/26/2009 | CN101515913A Fixed loop control method based on additions and shifts |
| 08/26/2009 | CN100534001C Sound collecting method and sound collecting device |
| 08/26/2009 | CN100534000C Matched filter, judging device and search method |
| 08/26/2009 | CN100533973C Minimum standard deviation self-adapting filter and method for realizing the same |
| 08/26/2009 | CN100533972C High-order filter circuit |
| 08/20/2009 | US20090210158 Systems and methods to determine elastic properties of materials |
| 08/20/2009 | US20090207955 Adaptive Digital Filter, FM Receiver, Signal Processing Method, and Program |
| 08/19/2009 | EP2091149A1 Method and device for downconverting the sampling frequency of a digital signal. |
| 08/19/2009 | CN101512899A Filter unit and method for generating subband filter impulse responses |
| 08/19/2009 | CN101510756A Digital signal down variable frequency processing system based on MIMO real time test platform |
| 08/19/2009 | CN100530960C 滤波装置 Filtering means |
| 08/18/2009 | US7577696 Multirate filter as well as display system and mobile telephone comprising said multirate filter |
| 08/18/2009 | US7577570 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 08/12/2009 | CN101505287A Order adaptive finite impulse response filter and operating method thereof |