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Patent Searching and Data


Matches 301 - 350 out of 13,150

Document Document Title
WO/2010/045720A1
Methods and apparatus are described herein that make use of complex tuning, the inherently repetitive nature of sampled signals, and programmable digital filtering to create a flexible digital up-conversion system that utilizes a digital...  
WO/2010/041381A1
A signal processing circuit has an IIR filter (11) and an FIR filter (12) that always have equivalent transmission functions, where, when in an adjusting mode for adjusting to any given transmission function, the configuration is set in ...  
WO/2010/038278A1
Provided are a digital signal processing circuit which attains digital control corresponding to analog PID control by combining a first filter which conducts moving average processing and so on and a second filter circuit which conducts ...  
WO/2010/037413A1
The present invention relates to the method and a device for constructing new sample values to be used in a Finite Impulse Response, denoted FIR, algorithm, wherein a sampled analog signal contains at least a periodic fundamental compone...  
WO/2010/035359A1
An analog complex filter (101) synthesizes a common-mode signal (I0) and an orthogonal signal (Q0) and outputs analog signals (I1, Q1). Analog/digital converters (102i, 102q) convert the analog signals (I1, Q1) to digital signals (I2, Q2...  
WO/2010/007326A3
The present invention relates to a device (5) for signal processing comprising M parallel processing pathways, each pathway processing a frequency sub-band of the frequency band of the signal and comprising: an analogue filter (10i) work...  
WO/2010/025564A1
A method and system for fractionally converting sample rates. Fractional rate conversion for a transmit path of a transceiver is achieved by upsampling an input signal having a first sample rate by a first integer factor, removing aliasi...  
WO/2010/026064A1
The invention relates to a filtering device with a DFSH hierarchical structure for carrying out linear filtering functions with finite impulse response (FIR) and with infinite impulse response (IIR), which can be combined with one or mor...  
WO/2010/020149A1
An obtaining filter method and a filter which is used in a visual surround sound system are provided. The method comprises: obtaining the filter functions in the visual surround sound system, the filter functions being represented by the...  
WO/2010/021280A1
A vector synthesis type phase shifter comprises a 90º phase shifter (1) which produces an in-phase signal (VINI) and an orthogonal signal (VINQ) from an input signal (VIN), a four-quadrant multiplier (2I) which changes the amplitude of ...  
WO/2010/014087A1
A method for optimizing processor operation in a processing system including one or more digital filters is provided according to the invention. The method includes generating initial filter coefficients for the one or more digital filte...  
WO/2010/007326A2
The present invention relates to a device (5) for signal processing comprising M parallel processing pathways, each pathway processing a frequency sub-band of the frequency band of the signal and comprising: an analogue filter (10i) work...  
WO/2010/001562A1
Disclosed is a technology for changing the number of taps used in a filtering process without requiring a branching process. A filter processing device (151) comprises a computing unit that performs arithmetic processing for filtering, a...  
WO/2010/000338A1
The present invention relates to a sample point adjustment unit adapted to be used for the merging of a plurality of asynchronous baseband unit signals, and to a radio base system comprising such a unit. The invention further relates to ...  
WO/2009/155696A1
A system and method for processing a signal with a filter employing FIR and/or IIR elements. The required controller function is decomposed into primary FIR and/or IIR elements and a compensation filter is provided to address the latency...  
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...  

Matches 301 - 350 out of 13,150