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Patent Searching and Data


Matches 351 - 400 out of 13,091

Document Document Title
WO/2008/095996A1
The invention provides a particular construction for digital filters in which, instead of multiplying various ones of the digital samples by weights and adding the results together, one or more of the digital samples is inspected by a ra...  
WO/2008/090897A1
Provided is a filter for adjusting sound qualities for various purposes. A filter (1) is so configured as to have a sound signal input and output the sound signal by shifting the phase of the sound signal in a prescribed frequency range ...  
WO/2008/073183A3
A method and apparatus for a multi-mode and multi-rate telemetry transmitter (1) includes a digital baseband lineup (3), a digital-to-analog converter ("DAC") (4), and an analog reconstruction filter (5). The digital baseband lineup (3) ...  
WO/2008/090822A1
It is possible to provide a technique which can easily modify the filter characteristic of a digital filter. In order to achieve the object, a weight measuring device includes a filter coefficient calculation unit (6) which uses a predet...  
WO/2008/090899A1
A sound adjusting device is provided for making it possible to easily adjust sound quality in response to a listener's taste or various applications. The sound adjusting device is comprised of an FIR filter (11) for carrying out filter p...  
WO/2008/090896A1
Provided is an acoustic adjustment method which can easily adjust sound quality in accordance with various preferences of users or applications. The acoustic adjustment method subjects an audio signal to a predetermined adjustment before...  
WO/2008/085448A1
In some embodiments common mode equalization is performed on a received differential signal to produce a voltage signal that is proportional to a common mode voltage of the differential signal. A command signal is provided in response to...  
WO/2008/037876A3
The present invention relates to the correction of the time distortions of electrocardiographic signals. The invention essentially relates to a system, a method, a computer software product and the use of a filter for correcting electric...  
WO/2008/030736A3
A real-time sample rate converter having a non-polynomial convolution kernel provides reduction in die area and power for performing sample rate conversion in real-time. A non- polynomial convolution kernel, which may be a gaussian opera...  
WO/2008/075268A1
The present invention relates to magnetic resonance imaging system and to a direct digital receiver (18) for an RF coil (D1, D2), in particular of a magnetic resonance imaging system. To obtain that the sampling frequency of an analog-to...  
WO/2008/072701A1
When a decoding audio signal is to be acquired by pitch-filtering a combined signal of a sub-frame length, a decoding audio signal is continuously changed at the boundary between sub-frames. The post filter includes: a first filter coeff...  
WO/2008/073183A2
A method and apparatus for a multi-mode and multi-rate telemetry transmitter (1) includes a digital baseband lineup (3), a digital-to-analog converter ("DAC") (4), and an analog reconstruction filter (5). The digital baseband lineup (3) ...  
WO/2008/073528A1
A method and apparatus for detecting the presence of a signal in a frequency band using non-uniform sampling includes an analog to digital converter (ADC) (110) for sampling an analog input signal (105) to create discrete signal samples ...  
WO/2008/068668A2
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...  
WO2008005151A8  
WO/2008/045713A3
A self-contained DAC that is especially suitable for use as an IP core, particularly for SOC (System on Chip) implementation. Techniques are applied to employ certain circuits (such as arithmetic element 302) to perform multiple function...  
WO/2008/049590A1
An embodiment of an apparatus (100) for generating audio subband values in audio subband channels comprises an analysis windower (110) for windowing a frame (120) of time-domain audio input samples being in a time sequence extending from...  
WO/2008/047139A1
A digital signal processor for interpolating a gain(coef f icient) to be applied to a digital signal, the processor including: first memory means (12) for storing a target gain coefficient; second memory means (14) for storing a current ...  
WO/2008/041322A1
A filter bank comprises a DFT part (11) that subjects a digital input signal (X) to a discrete Fourier transformation (DFT), thereby decomposing the digital input signal (X) into a plurality of first signals (S1-S16) present in the respe...  
WO/2008/032763A1
[PROBLEMS] To realize a CMOS low-noise amplification circuit which can reduce a chip area and design time and can be easily digital-controlled from outside. [MEANS FOR SOLVING PROBLEMS] The amplification circuit includes: an amplificatio...  
WO/2008/030736A2
A real-time sample rate converter having a non-polynomial convolution kernel provides reduction in die area and power for performing sample rate conversion in real-time. A non- polynomial convolution kernel, which may be a gaussian opera...  
WO/2007/146599A3
In general, this disclosure describes techniques for changing a sampling frequency of a digital signal. In particular, the techniques provide a more accurate way to determining a relative timing between a desired output sample and a corr...  
WO/2008/001318A3
A device (1) for producing spectrally shaped noise comprises a filter unit (13) for filtering input noise samples using filter coefficients representing a spectral envelope. The filter coefficients are determined for use at a first sampl...  
WO/2008/018197A1
In an IIR digital filter, for instance, a multiple-input multiplier and adder circuit is used in place of a plurality of multipliers and a plurality of adders as a structural element. With this structure, since a plurality of multipliers...  
WO/2007/084259A3
A method is provided for decimating a digital signal by a factor of M and matching it to a desired channel bandwidth. The method applies the digital signal input samples to a (M-I) stage tapped delay line, downsamples the input samples a...  
WO/2008/008012A1
The present invention relates to an apparatus (100) for reducing peak power in a transmitter for use in telecommunications systems. The invention also relates to a method for reducing peak power in a transmitter for use in telecommunicat...  
WO/2008/007328A1
The invention relates to an RF signal sampling apparatus for a wireless receiver, comprising a first transconductor circuit (Gmi), for converting received RF voltage signals into current signals, a first HR filter, for down-sampling and ...  
WO/2008/003467A1
A filter unit (102) for generating new subband filter impulse responses from input subband filter impulse responses comprises a processor (820) for examining the input filter impulse responses from at least two input subband filter input...  
WO/2008/005902A1
According to some embodiments, an input symbol may be received, and a hard symbol may be generated from the input symbol. A probability associated with the hard symbol may be calculated along with a probability associated with a previous...  
WO/2007/110750A3
A filtering method and system for a subband-domain is provided. A first analysis filter bank is configured to divide an input signal into a plurality of subbands. A second analysis filter bank divides one or more of the subbands into a s...  
WO/2008/005151A2  
WO/2005/101959A3
This invention describes a method for adjusting loudness and spectral content of digital audio signals in a real-time using warped spectral filtering. A warped processing module modifies a spectral content of a digital audio signal with ...  
WO/2007/148241A1
The invention relates to a method for processing a digital input signal (x(i)) in a digital domain, comprising: - sampling a wideband of input frequencies of said digital input signal (x(i)) with a sampling frequency (fs), which decimate...  
WO/2007/149297A1
A communication system includes a channel shortening filter to reduce intersymbol interference and facilitate recovery of communications. The channel shortening filter preferably includes a energy concentration filter that optimizes SNR ...  
WO/2007/146599A2
In general, this disclosure describes techniques for changing a sampling frequency of a digital signal. In particular, the techniques provide a more accurate way to determining a relative timing between a desired output sample and a corr...  
WO/2007/136010A1
Disclosed is a digital signal demultiplexing device for multi/demultiplexing reception signals which have been frequency-multiplexed and outputting the signals. The digital signal demultiplexing device includes: demultiplexing filter ban...  
WO/2007/135928A1
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/2007/096663A3
A digital filter, the filter comprising: an input to receive complex-valued input samples; an up-sampler coupled to said input to provide an up-sampled output comprising an increased number of said input samples; a filter coupled to said...  
WO/2007/027616A3
A method of filtering one or more input signals, includes receiving one or more input signals, each having an input signal value. The method includes storing at least two instructions in a program memory to filter one or more of the inpu...  
WO/2007/095624A3
Techniques are described for sampling rate conversion in the digital domain by up-sampling and down-sampling a digital signal according to a selected intermediate sampling frequency. A prototype anti-aliasing filter that has a bandwidth ...  
WO/2005/107083A3
A multiple stage matched filter for a wireless receiver comprises a receiver configured to develop a received signal, the received signal comprising a bit stream of signal samples, and a multiple stage matched filter configured to parall...  
WO/2007/110839A2
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/2007/112378A2
A method of balancing the voltage of DC links in a cascaded multi-level converter (CMC) semiconductor circuit, including the steps of providing a plurality of H-bridge converters per phase in the CMC circuit and utilizing a three phase d...  
WO/2007/102611A1
An interpolation function generation circuit is formed by longitudinally connecting a first FIR filter (10) having a numerical value string composed of a ratio "-α, α, β, β, α, -α"(α is an emphasis coefficient and β is a fixed va...  
WO/2007/096663A2
A digital filter, the filter comprising: an input to receive complex-valued input samples; an up-sampler coupled to said input to provide an up-sampled output comprising an increased number of said input samples; a filter coupled to said...  
WO/2007/095664A1
Adaptively processing an input signal, such as an input signal of a hearing aid. The input signal is passed through an adaptive time domain filter to produce an output signal. At least one of the input signal and the output signal is use...  
WO/2007/079097A3
A digital to analog converter (DAC) includes a first continuous-time stage that receives an input signal associated with a digital signal and performs continuous-time digital-to-analog conversion operations on the input signal. The first...  
WO/2007/095624A2
Techniques are described for sampling rate conversion in the digital domain by up-sampling and down-sampling a digital signal according to a selected intermediate sampling frequency. A prototype anti-aliasing filter that has a bandwidth ...  
WO2007069652B1
Provided is a digital filter for radio communication processing capable of dynamically modifying the characteristic and simultaneously processing a plurality of systems. In the digital filter, calculation core groups (1010-1017) capable ...  
WO/2007/085275A1
A filter apparatus for filtering a time domain input signal to obtain a time domain output signal, which is a representation of the time domain input signal filtered using a filter characteristic having an non-uniform amplitude/frequency...  

Matches 351 - 400 out of 13,091