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Patent Searching and Data


Matches 301 - 350 out of 13,093

Document Document Title
WO/2009/150949A1
Provided is an FIR filter capable of obtaining predetermined characteristics with a small number of input taps, delay circuits, and multipliers and achieving an improved response and low cost. In a low-pass filter, a band-pass filter, an...  
WO/2009/133948A1
Proposed is an audio processing device and an audio processing method that enable reproduction of discrete data with good sound quality according to user preferences. An audio processing part (2) makes it possible to calculate an interpo...  
WO/2009/092837A4
Method and apparatus for digital filtering of signals that combines linear digital filters with warped linear filters.  
WO/2009/121263A1
A filtering method and filter..The method includes: receiving a first filtered signal processed by low-pass filtering and a second filtered signal processed by high-pass filtering,all-pass filtering a third filtered signal for the phase ...  
WO/2009/120504A1
A method and system of decimating a Pulse Width Modulated (PWM) signal (537) is provided. The method includes computing one or more timestamps (553) of the PWM signal (537), the PWM signal being at a first sample rate (567). The one or m...  
WO/2009/112825A1
A method of generating a desired shelving filter for audio data, the desired shelving filter having a low-corner frequency U and a high-corner frequency f2, wherein the difference between the gain of the frequency response of the desired...  
WO/2009/090135A3
A digital optimal filter having an especially sinusoidal impulse response uses a filter structure with a recursive and a transversal portion. The transversal portion comprises filter coefficients for the representation of the scan result...  
WO/2009/104710A1
A data conversion device is provided with a data conversion means that sequentially converts first data into second data of the number of second bits, wherein an analog signal is quantized into the first data by the number of first bits,...  
WO/2009/104278A1
An input signal to a filter device is allowed to be written into one of a plurality of sequentially connected cells if the input signal is not the zero-valued sample. Each cell receives the input signal and multiplies the input signal by...  
WO/2009/103624A1
The invention relates to the improving of the passband of physical systems. Use is made of a finite impulse response filter which is designed in the following manner, on the basis of the behaviour (observed or known) of the physical syst...  
WO/2009/092837A1
Method and apparatus for digital filtering of signals that combines linear digital filters with warped linear filters.  
WO/2009/090135A2
A digital optimal filter having an especially sinusoidal impulse response uses a filter structure with a recursive and a transversal portion. The transversal portion comprises filter coefficients for the representation of the scan result...  
WO/2009/086060A1
An electronic device is provided for generating or utilizing one or more cycle-swallowed clock signals derived based on one or more first clock signals. The device includes a module configured to receive a first clock signal having a fir...  
WO/2009/081238A1
For subband decomposition of a d-dimensional input signal (S) into a number K of subband components (F1-F4), a filter bank has a filtering module (801) transforming the input signal (S) into 2d components including a low- frequency compo...  
WO/2009/082299A1
The present invention relates to a method and apparatus of a digital filter for noise suppression of a signal representing an acoustic recording. The method comprises determining a desired frequency response ( H(ω) ) of the digital filt...  
WO/2009/082302A1
The present invention relates to a method and a filter design apparatus for designing a digital filter arrangement for noise suppression of a signal representing an acoustic recording. The method comprises determining a desired frequency...  
WO/2009/081188A1
An infinite impulse response (IIR) filter is provided for receiving an input signal and outputting a filtered signal. The filter comprises feedback circuitry for feeding back said filtered signal, the feedback circuitry comprising a firs...  
WO/2009/042683A3
At least some of the arithmetic operations of a filter or other digital process can be performed time sequentially, which may allow the arithmetic elements for the filter or other digital process to be used multiple times for multiple op...  
WO/2009/072197A1
A digital filter and so forth in which the maximum value of LUT data is kept low and a wide range of distortion compensation and a reduction in circuit size are compatible regardless of the distribution pattern of the tap coefficient amp...  
WO/2009/063728A1
A signal processing unit (2) processes a digital signal from an AD conversion unit (1). The signal processing unit (2) includes a filter unit (4) and a memory unit (5) for accumulating filter coefficient data. An FIR filter (40) and an F...  
WO/2009/056158A1
The invention relates to a method for estimating or filtering an alternating voltage or current signal comprising the steps: defining a general signal structure to represent the estimated signal by means of a sinusoidal function having a...  
WO/2008/147980A4
A multimode audio amplifier comprises: a mode controller adapted to provide a control signal; and at least one multimode module, wherein each of the multimode modules has a plurality of operating modes, wherein the operating modes are se...  
WO/2009/010675A3
The invention relates to a control assist method for a vehicle including a power train connected to the drive wheels by a clutch. The invention is characterised in that it involves a clutch curve which connects the position of the clutch...  
WO/2009/010676A3
The invention relates to an assist device for a vehicle including a power train connected to the drive wheels by a clutch, a bus and a power-assist parking brake, said device comprising sensors which transmit signals to the bus and means...  
WO/2009/007663A3
The invention relates to a nonlinear filtering device (10) including a first processing branch comprising, in series, a subtractor module (11) receiving an input signal (E), a fixed gain module (12), an adder module (13), an integrator m...  
WO/2009/041047A1
A sampling filter device (100) includes: a first sampling switch (130); a second sampling switch (131); a first integrator (1500) which integrates charge inputted from the first sampling switch; a second integrator (1501) which integrate...  
WO/2008/133679A8
A method (200) for detecting a periodic signal (141) in a noisy signal (101) is provided. The method can include applying (210) correntropy to the noisy signal to generate a non-linear mapping, and applying (220) a sub-space projection t...  
WO/2009/042683A2
At least some of the arithmetic operations of a filter or other digital process can be performed time sequentially, which may allow the arithmetic elements for the filter or other digital process to be used multiple times for multiple op...  
WO/2007/135928A9
Provided is a digital/analog conversion apparatus for converting a digital signal into an analog signal. The digital/analog conversion apparatus can generate a high-quality analog signal, even when elements configuring the digital/analog...  
WO/2008/147980A3
A multimode audio amplifier comprises: a mode controller adapted to provide a control signal; and at least one multimode module, wherein each of the multimode modules has a plurality of operating modes, wherein the operating modes are se...  
WO/2009/010675A2
The invention relates to a control assist method for a vehicle including a power train connected to the drive wheels by a clutch. The invention is characterised in that it involves a clutch curve which connects the position of the clutch...  
WO/2009/010676A2
The invention relates to an assist device for a vehicle including a power train connected to the drive wheels by a clutch, a bus and a power-assist parking brake, said device comprising sensors which transmit signals to the bus and means...  
WO/2009/009355A2
Systems and methodologies are described that facilitate identifying peers based upon encoded signals during peer discovery in a peer to peer network. For example, direct signaling that partitions a time-frequency resource into a number o...  
WO/2009/007663A2
The invention relates to a nonlinear filtering device (10) including a first processing branch comprising, in series, a subtractor module (11) receiving an input signal (E), a fixed gain module (12), an adder module (13), an integrator m...  
WO/2008/142278A3
In the receive subsystem, the analogue-digital converter (40) works on the output of the low-noise amplifier (33), at a chosen rate (F), which corresponds to a bandwidth sampling. The processing stages comprise a custom circuit (5), with...  
WO/2008/137059A3
Various embodiments of the present invention are directed to adaptive real-time, acoustic echo cancellation methods and systems. One method embodiment of the present invention is directed to reducing acoustic echoes in microphone-digital...  
WO/2008/155725A1
A device for processing 500 is provided, wherein the device comprises an input interface 501, and a data processing unit 502, wherein the input interface 501 is adapted to receive audio data, and wherein the data processing unit 502 is a...  
WO/2008/151442A1
A system and method for filtering a signal comprising: receiving a signal of interest; receiving a signal indicating that a stimulus has been applied; receiving the synchronized stimulus signal and signal of interest; recursively selecti...  
WO/2008/149881A1
A voltage-to-current converter is provided with a converter input terminal, a converter output terminal, a voltage-to-current converting section for converting a voltage inputted to the converter input terminal into a current, and a curr...  
WO/2008/147980A2
A multimode audio amplifier comprises: a mode controller adapted to provide a control signal; and at least one multimode module, wherein each of the multimode modules has a plurality of operating modes, wherein the operating modes are se...  
WO/2008/142979A1
A video conference device having an echo canceller the processing load of which is lightened, in which a loudspeaker, a microphone, and a camera are placed near a monitor. An auxiliary filter section (18) is provided at the previous stag...  
WO/2008/137059A2
Various embodiments of the present invention are directed to adaptive real-time, acoustic echo cancellation methods and systems. One method embodiment of the present invention is directed to reducing acoustic echoes in microphone-digital...  
WO/2008/110867A3
A method for reducing ringing in a signal output from a filter comprising inputting a signal into a filter; filtering a first portion of the input signal to generate a filtered portion of the output signal; analyzing the filtered portion...  
WO/2008/133679A1
A method (200) for detecting a periodic signal (141) in a noisy signal (101) is provided. The method can include applying (210) correntropy to the noisy signal to generate a non-linear mapping, and applying (220) a sub-space projection t...  
WO/2008/125206A1
The invention relates to a method for optimizing a transmission segment having a minimal-phase transmission characteristic (9; 9') from a transmission segment having a non-minimal-phase transmission characteristic (8) upstream of an equa...  
WO/2008/123317A1
If K = 4N, wherein K is a number of divisions and N is a thinning ratio, an analysis filter processing unit (21) is used to perform an analysis filter process for each of N samples of real-valued input data and output real-valued data on...  
WO/2007/110839A3
The present invention comprises a method and system of sample rate conversion in an efficient way in case that out-of-band noise is present. The presented method and system can be used for reducing (decimating) as well as increasing (int...  
WO/2008/117131A1
An apparatus for generating filtered and downsampled data comprises a calculation unit, a polyphase addition unit and a downsampling unit operable in a data decimation phase and a data preserving phase. The calculation unit is arranged t...  
WO/2008/110867A2
A method for reducing ringing in a signal output from a filter comprising inputting a signal into a filter; filtering a first portion of the input signal to generate a filtered portion of the output signal; analyzing the filtered portion...  
WO/2008/068668A3
A high pass filter adapted for use in a signal processing device comprising a sampler adapted to sample a signal and transmit the samples to the high pass filter, the high pass filter comprising a differentiator and an integrator; charac...  

Matches 301 - 350 out of 13,093