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JP2016009915A |
To reduce the number of errors in symbol determination, even if the statistical trend is different from symbol to symbol.A digital filter 10 is used for demodulation of a signal subjected to multilevel phase modulation. The digital filte...
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JP2016500847A |
A voice analysis system uses one or more digital processors to reconstruct a voice signal by accurately extracting the voice formants from a digitized version of the voice signal. The system extracts formants by determining in real time ...
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JP2016500967A |
Systems and methods for defining and parameterizing signals or system responses using finite innovation rate (FRI) signal processing are described herein. Delta-sigma modulators are used at low sampling rates to digitize analog signals f...
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JP5839022B2 |
A digital filter for removing a PWM noise from a sampling data includes: an averaging filter. The sampling data is obtained by sampling a control amount of a control object, which is driven at a driving frequency in a PWM control manner,...
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JP5835508B1 |
To easily evaluate filtering characteristics for each LPF produced in a manufacturing process. A method for evaluating an LPF including steps 1 to 6, wherein the first step (S1) has a cutoff frequency f based on the attenuation character...
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JP5837667B2 |
The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502),...
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JP5829829B2 |
A filter circuit includes a plurality of shifting units configured to each store an initial value, receive at least one input signal, and shift the stored value to a next shifting unit in sequence from among the shifting units in respons...
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JP5825953B2 |
Presented is a system and method for controlling an actuator in a multirate control system using an integrated upsampler and filter, comprising an incremental command limiter for changing a command from a first control system into a limi...
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JP2015213133A |
To provide a non-contact transmission device capable of broadband transmission.The non-contact transmission device includes: a pair of transmission coils 10 including a first coil 31 and a second coil 32, the inductance of which is diffe...
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JP5818608B2 |
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JP5813324B2 |
The present invention relates to a method of processing a signal which is received by a receiver, comprising, obtaining an analog signal (yt) based on another signal (xt) and noise; defining a sampling kernel based on the noise; and usin...
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JP5812774B2 |
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JP2015201867A |
To provide passive switched-capacitor (PSC) filters that occupy smaller area and consume less power.A PSC filter 1000 implements a second-order infinite impulse response (IIR) filter with two complex first-order IIR sections. Each comple...
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JP5809645B2 |
A signal processor for providing a processed version of an input signal in dependence on the input signal comprises a windower configured to window a portion of the input signal, or of a pre-processed version thereof, in dependence on a ...
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JP5808895B2 |
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JP5802184B2 |
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JP5801428B2 |
The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502),...
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JP5797135B2 |
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JP5790933B2 |
To provide a noise removal device that effectively removes noise in a small circuit scale mainly comprising an IIR filter and effectively suppresses image spreading and blurring.The noise removal device includes a filter section 30, and ...
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JP5790956B2 |
A digital filter circuit that implements a filtering process for a plurality of channels having different sampling rates with a small circuit complexity includes a delay circuit divided into first to mth groups of delay devices, processi...
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JP5787608B2 |
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JP5778925B2 |
A motor-drive circuit includes: a filter circuit to attenuate a frequency band including a resonance frequency of an actuator in a target-current signal, the target-current signal corresponding to a digital signal indicative of a target ...
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JP5774475B2 |
Provided are a device and a method for sampling frequency rate conversion (SRC), which is capable of high-speed, high-precision data conversion. When a discrete impulse response function ?(Pr,n) is extracted from an impulse response func...
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JP5768819B2 |
[Objective] To provide a digital filter circuit and a digital filter control method which are capable of reducing circuit scale and power consumption for filter processing in a frequency domain such as an overlap FDE method. [Solution] A...
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JP2015137077A |
To provide a tire position registration system which can correctly judge a tire position.A tire valve 4 includes a filter part 12 for eliminating other components than gravity in a gravity detection signal Sgr of a gravity detection part...
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JP5751471B2 |
The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502),...
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JP5752431B2 |
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JP5742366B2 |
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JP5724161B2 |
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JP5711645B2 |
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JP5715595B2 |
An audio system with at least one audio channel is disclosed. The audio system includes a digital audio processor in which at least one digital filter is implemented for each channel. The digital filter of each channel comprises: an anal...
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JP5712559B2 |
A signal processing apparatus includes a signal processing unit configured to carry out signal processing on a single-carrier signal and a multi-carrier signal by making use of a plurality of common filters shared by the single-carrier s...
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JP5708693B2 |
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JP5708150B2 |
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JP5709849B2 |
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JP5689820B2 |
The document relates to modulated sub-sampled digital filter banks, as well as to methods and systems for the design of such filter banks. In particular, the present document proposes a method and apparatus for the improvement of low del...
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JP5686752B2 |
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JP5685908B2 |
A loop filter include: a register that stores a result of arithmetic operation performed on a complex signal and outputs the stored complex signal; a first multiplier that multiplies the complex signal output from the register and a pred...
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JP5687010B2 |
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JP5683307B2 |
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JP5680259B2 |
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JP2015039196A |
To provide passive switched-capacitor (PSC) filters that filter received signals and occupy a small area and consume low power in many applications.A PSC filter 1000 implements a second-order infinite impulse response (IIR) filter with t...
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JP2015039197A |
To provide filters that occupy a small area and consume low power.A passive switched-capacitor (PSC) filter 1000 implements a second-order infinite impulse response (IIR) filter with two complex first-order IIR sections. Each complex fir...
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JP5676951B2 |
Multi-dimensional finite impulse response filters are disclosed in hybrid and transpose forms. Multi-dimensional signals can be expressed in a vector (or matrix) form to allow multi-dimensional signals to be processed collectively. Known...
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JP5665770B2 |
A signal generation device includes: filter banks (2-0 to 2-(L-1)) that perform sampling frequency conversion with respect to an input signal of a predetermined sampling frequency, and generate a signal obtained after the sampling freque...
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JP5657580B2 |
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JP5638787B2 |
An apparatus for subband processing of an audio signal is presented that comprises an analysis filter bank, signal processors and a synthesis filter bank. The analysis filter bank includes two signal branches for establishing two subband...
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JP2014228926A |
To provide smoothing processing while preserving edges at a low cost.A cyclic digital filter introduces level adaptation processing of input signals to perform smoothing processing while preserving edge areas, which are steep change of t...
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JP5631628B2 |
An RF generator is provided for use in an RF plasma system. The RF generator includes: a power source that is operable to generate RF power signals at a tuned frequency; a sensor unit that is adapted to detect the RF power signals and op...
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JP5624701B2 |
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