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WO/2019/246156A1 |
Digital step attenuator (DSA) and digital phase shifter (DPS) multi-stage circuit architectures that provide for high resolution. Embodiments use a dithering approach to weight bit positions to provide a much finer resolution than the lo...
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WO/2019/234484A1 |
A system and method for generating a waveform having a burst modulated ultrasound sweep carrier wave with encapsulated sonic artefacts is disclosed. The system includes a transducer; and a microcontroller operatively connected to the tra...
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WO/2019/228982A1 |
The invention pertains to a method for determining a displacement of at least one reference point (5) of an object (1) during an event, an event being defined by the fact that the acceleration of the reference point (5) of the object (1)...
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WO/2019/229774A1 |
Embodiments of the present disclosure are related to a receiver and a method for receiving signal. The method comprises estimating, by a receiver, channel for each of a plurality of antennas using the received signal stream, to produce a...
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WO/2019/219401A1 |
The invention relates to a method for producing a linear-phase digital FIR filter (4) from two sub-filters (6a, b) for an audio signal (AU, AF), in which method the sub-filters (6a, b) are provided as sub-sets (Ta, b) having numbers (Ma,...
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WO/2019/211187A1 |
A method of operating a hearing aid system comprising a hearing aid (300) wherein a digital filter (302) is adapted to be of minimum phase and to provide a frequency dependent target gain.
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WO/2019/211309A1 |
Prism signal processing is a new FIR filtering technique that can offer a fully recursive calculation and elegant filter design. Its low design and computational cost may be particularly suited to the autonomous signal processing require...
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WO/2019/197709A1 |
There are disclosed various methods, apparatuses and computer program products for audio encoding and reproduction. A method comprises determining, in a first device, parameters for at least two reverberator methods for reproducing a rev...
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WO/2019/181734A1 |
Provided is a filter control method comprising: accepting a plurality of parameters which define a frequency response of a filter element used to control a sound signal and which include a parameter defining a central inclined portion be...
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WO/2019/171244A1 |
A method for adjusting the frequency response of a digital filter, particularly for processing digital audio signals, comprising the steps of defining a desired curve of the frequency response of the filter, and calculating the digital f...
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WO/2019/170020A1 |
The present disclosure provides a method and device for updating a finite impulse response filter coefficient vector. The updating method comprises: acquiring a step-size diagonal matrix for the update of a FIR filter coefficient vector;...
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WO/2019/164057A1 |
A server for supporting the maintenance of military equipment comprises: a reception unit for receiving an image of military equipment from a wearable device worn on the body of maintenance personnel; an object recognition unit for recog...
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WO/2019/159979A1 |
An interpolation unit (6) generates up-data series into which interpolation data has been inserted by performing up-sampling on conversion data series outputted from an AD conversion unit (5). A distance calculation unit (7) calculates t...
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WO/2019/153072A1 |
An interference mitigation apparatus, comprising: an adaptive feedforward filtering stage and an adaptive feedback filtering stage configured to produce a plurality of output signals from a plurality of frequency downconverted signals, t...
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WO/2019/156644A1 |
The invention relates to a method that enables to conduct DDC and downsampling processes on hardware components such as FPGA etc. by consuming less DSP resources.
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WO/2019/152101A1 |
Sample rate converter and related methods are provided. A method may include (1) obtaining a pitch value based at least on a relationship between an input sampling rate of input samples of a first audio signal to an output sampling rate ...
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WO/2019/129838A1 |
The material invention shows a filter that is capable of filtering a noisy, periodic measurement signal having oscillations at a variable fundamental frequency and harmonic oscillation components of the fundamental frequency by virtue of...
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WO/2019/132720A1 |
The invention relates to computing and measuring technology and concerns an adaptive digital filtering method and an adaptive digital filter for processing a measuring signal, which can be used for filtering signals in computers and micr...
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WO/2019/127918A1 |
Provided in an embodiment of the present invention are a digital filter and a data processing method, which are used for solving the technical problem in the existing technology wherein the complexity of a digital filter processing digit...
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WO/2019/123682A1 |
An apparatus for controlling a system includes a memory to store a model of the system including a motion model of the system subject to process noise and a measurement model of the system subject to measurement noise, such that one or c...
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WO/2019/119028A1 |
The invention provides a method and apparatus for filtering a temporal signal. A target magnitude frequency response H T (f) is specified (101,201) of frequency f in terms of a column vector l of K weights l k where log H T (f) = l T W(f...
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WO/2019/102785A1 |
The present invention realizes a digital noise filter with which it is possible to reduce jitter. A digital noise filter (11) for removing noise from an input signal, the input signal being an Off signal or an On signal, wherein the digi...
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WO/2019/093165A1 |
An extremum calculation unit (11) detects a maximum sample and a minimum sample in a digital audio signal. A sample number detection unit (12) detects a sample interval between the maximum sample and the minimum sample. A difference calc...
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WO/2019/093580A1 |
The present invention relates to a phase shifter for generating a difference in phase between a first transmission path and a second transmission path, the phase shifter comprising: a phase delay circuit unit which forms the first transm...
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WO/2019/092220A1 |
There are discussed methods and systems for filtering an information input signal (11, 11a, x), divided into different update intervals, according to parameters varying with the update intervals, to obtain a filtered output signal (y, 15...
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WO/2019/089845A1 |
Systems and methods for low latency adaptive noise cancellation include an audio sensor to sense environmental noise and generate a noise signal, an audio processing path to receive an audio signal, process the audio signal through an in...
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WO/2019/062406A1 |
A method and an apparatus for signal processing: implementing step-by-step orthogonal decomposition of an original signal to be inputted; on the basis of the number of layers of orthogonal decomposition and the edge high frequency bandwi...
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WO/2019/051841A1 |
Provided are a method for determining a filter coefficient and device therefor, and a terminal. The method for determining a filter coefficient comprises: determining an estimated output of the filter according to an input signal of the ...
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WO/2019/047134A1 |
A high-degree biological simulation-based voice processing filter, said filter being a nine-stage filter formed by cascading a band pass filter unit (10), a low-pass filter unit (20) and an elliptic low-pass filter unit (30) in sequence,...
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WO/2019/020623A1 |
A device (1) and a method for detecting battery cell states (BZZ) and/or battery cell parameters (BZP), at least one battery cell (BZ) having a dual Kalman filter (2) that has a state estimator (2A) for estimating battery cell states (BZ...
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WO/2019/020620A1 |
The invention relates to a method for monitoring a stable convergence behavior of a Kalman filter (KF), which estimates states and/or parameters of an energy storage system, in particular a battery cell (BZ), wherein a covariance behavio...
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WO/2019/020258A1 |
The invention relates to a device for signal processing comprising a signal input (10) for receiving an input signal, a control input (20) for receiving a control signal, and an nth-order CIC filter for filtering the input signal. The CI...
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WO/2019/000075A1 |
Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Such UWB systems through their receivers may operate in the presenc...
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WO/2018/234618A1 |
A method, apparatus and computer-readable medium are disclosed for using a linear transformation of a far-field audio signal and a linear transformation of a near-field audio signal to determine a room impulse response filter relating to...
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WO/2018/225708A1 |
An equalizer is provided in which a balance between mounting cost and reception quality is achieved in SC-MIMO transmission. The equalizer can connect with N reception antennas that receive single-carrier transmission signals transmitted...
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WO/2018/223416A1 |
A finite rate of innovation (FRI) sparse sampling kernel function construction method and circuit. In the method, a condition that a sampling kernel needs to be satisfied is determined according to characteristics of an analog input sign...
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WO/2018/215334A1 |
A method for wideband generation of IQ signals involves a reference signal initially having its frequency doubled and subsequently being supplied to a master-slave D-type flip-flop (DIV2) in order to obtain an I component and a Q compone...
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WO/2018/193161A1 |
An apparatus for generating a spatially extended audio signal, the apparatus configured to:analyse at least one audio signal to determine spectral content of the at least one audio signal;determine whether to spectrally extend the at lea...
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WO/2018/164060A1 |
A demultiplexing circuit comprising a multi-stage demultiplexing circuit comprising a connection of a plurality of circuits. Each of the plurality of circuits includes a combination of a selector which selects any of input signals in acc...
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WO/2018/159948A1 |
An analog to digital converter according to the present technology comprises: a modulator which over-samples and outputs an input signal; and a filter which conducts, on the output of the modulator, a decimation operation together with a...
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WO/2018/157699A1 |
A globally optimal particle filtering method and a globally optimal particle filter, which relate to the field of signal processing and which overcome the disadvantage wherein existing particle filters cause large deviations between samp...
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WO/2018/129096A1 |
Systems and methods according to one or more embodiments are provided for a hum reduction circuit implemented to provide a ground path between an audio generating device and a powered headset. In one example, a system includes a jack con...
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WO/2018/118737A1 |
A current sensing circuit (100) for use with a Rogowski coil (2) arranged around a conductor having a primary current includes input terminals (102,104) structured to receive an output voltage of the Rogowski coil, an analog to digital c...
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WO/2018/109027A1 |
The invention relates to a method for filtering a dynamically deviating measurement signal (22). The measurement signal (22) is first detected within a defined time period by means of a sensor unit (20) and said measurement signal (22) i...
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WO/2018/103932A1 |
The invention relates to a method for adapting an electronic filter unit (40). At the beginning, a plurality of first input values (31) is captured within a first time period. Subsequently, filtered output values (36) are produced by fil...
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WO/2018/105614A1 |
The purpose of the present invention is to reduce leakage of an output signal in the time axis direction and between band-pass filters. A signal input unit 1 vectorizes an input signal x(n). An extended impulse response matrix generation...
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WO/2018/087914A1 |
The present invention is configured so as to comprise: a high-pass filter (2) that eliminates an offset included in an AC signal Vin input from a signal input terminal (1); and a waveform restoration unit (3) that, using a time constant ...
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WO/2018/052852A1 |
Devices and methods for filtering data include calculating intermediate input values from input elements using a transformation function. The transformation function is based at least in part on a size of the filter and a number of filte...
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WO/2018/031195A1 |
A reconfigurable filter circuit has a first path including a transimpedance amplifier (TIA). The transimpedance amplifier has an input that receives an input current and an output that outputs a voltage. The reconfigurable filter circuit...
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WO/2018/026372A1 |
Frequency band selection for tuning an antenna are disclosed. In one example, one of a Received Signal Strength Indicator (RSSI) value and an echo value of a plurality of frequency bands is obtained. Based on one of the RSSI values or th...
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