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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/2018/234619A3 |
A method, computer-readable medium and apparatus are disclosed for:receiving, via a first track, a near-field audio signal from a near-field microphone;receiving, via a second track, a far-field audio signal from an array comprising one ...
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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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WO/2018/015412A1 |
A digital filter has an assigned filter function with assigned filter coefficients (bk), an input receiving input samples (xk), another input receiving confidence values (ck), and an output (out). Each input sample value (xk) is associat...
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WO/2018/009476A1 |
A system and method for mitigating interference of a radio frequency (RF) signal includes a receiver configured to include: a decomposition module that decomposes a received RF signal into sub-bands via a multi-stage filter, each sub-ban...
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WO/2017/217900A1 |
A radio communication receiver and a method performed by the radio communication receiver for configuring a Notch filter of the radio communication receiver are disclosed. The method (100) comprises retrieving (120) stored and previously...
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WO/2017/211826A1 |
A signal filtering device (10) is provided for filtering a series of values. The signal filtering device includes a first signal transmission branch (110) with a signal filter (115), wherein the signal filter is configured to filter the ...
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WO/2017/207655A1 |
A method of converting a stream of samples at a first sampling rate to a stream of samples at a second sampling rate is disclosed, comprising: measuring the first sampling rate; determining a first upsampling factor from a basis comprisi...
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WO/2017/197797A1 |
A digital filter, comprising: a time-delay unit (10), a first control unit (20), a second control unit (30), an output control unit (40), and a clock logic unit (50). The time-delay unit (10) delays a clock signal input to the digital fi...
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WO/2017/189271A1 |
Embodiments of the present disclosure provide mechanisms that enable designing an FIR filter that would have a guaranteed globally optimal magnitude response in terms of the minimax optimality criterion given a desired weight on the erro...
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WO/2017/183405A1 |
An acoustic processing device (1) comprises: a first filter coefficient calculation unit (31) that calculates a first filter coefficient while associating the first filter coefficient with a first gain inputted and set in each band by a ...
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WO/2017/179539A1 |
The speaker drive device according to one embodiment of the present invention comprises: a setting unit that sets, as a first parameter, at least one parameter that defines an equivalent circuit for a first speaker unit; a first computat...
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WO/2017/179538A1 |
The speaker drive device according to one embodiment of the present invention comprises: a setting unit that sets, as a first parameter, at least one parameter that defines an equivalent circuit for a first speaker unit; a first computat...
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WO/2017/180171A1 |
The behavior of a NOS DAC and an analog filter may be emulated by electronic components of an integrated circuit (IC) by upsampling data and applying a digital filter to the upsampled data. For example, the IC may include a zero-order-ho...
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WO/2017/180172A1 |
Droop caused by a filter may be compensated by applying a pre-filter to the audio signal that cancels out, at least in part, the droop caused by the filter. The pre-filter may implement magnitude compensation that causes an approximately...
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WO/2017/173461A1 |
A method for signal transmission using precoded symbol information involves estimating a two-dimensional model of a communication channel in a delay-Doppler domain. A perturbation vector is determined in a delay-time domain wherein the d...
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WO/2017/154350A1 |
A parallel transfer rate converter (4) synchronizes first parallel data, the sample number of which is S1 samples, with a first clock, inputs the same, synchronizes second parallel data, the sample number of which is S2, which equals S1Ã...
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WO/2017/154351A1 |
A FIR filter (7) convolves sampling data, which is obtained by sampling a received signal, with a tap coefficient. A phase difference detection unit (8) detects the phase difference between the synchronization timing of a signal waveform...
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WO/2017/151220A1 |
A reconfigurable discrete time analog signal processor includes a finite impulse response (FIR) filter configured to receive a portion of an RF transmit signal, to receive FIR coefficients, and to generate a leakage cancellation signal b...
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WO/2017/132856A1 |
A filter circuit (100, 200, 310, 420), a radio-frequency (RF) anti-interference circuit and an RF signal generating circuit are provided. The filter circuit (100, 200, 310, 420) includes at least one filter module (1, 2, 110, 120, 130, 1...
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WO/2017/134097A1 |
A variable output data rate converter circuit preferably meets performance requirements while keeping the circuit complexity low. In some embodiments, the converter circuit may include an oversampling sigma delta modulator circuit to qua...
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WO/2017/135012A1 |
An active vibration and noise control device robust against outside disturbances, and an active vibration and noise control circuit are provided. An adaptive control circuit (50) of this active vibration and noise control device (24) has...
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WO/2017/124007A1 |
Example embodiments disclosed herein relate to audio signal processing with low latency. A method of processing an audio signal is disclosed. The method includes obtaining frequency parameters of a current frame of the audio signal. The ...
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WO/2017/122419A1 |
A signal output device (5, 105, 205, 305, 405, 505) is provided in a communication appliance (2) which communicates with another communication appliance (3) using a single wire (4). A signal output unit (6, 106, 206, 306, 406, 506) outpu...
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