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Patent Searching and Data


Matches 901 - 950 out of 13,158

Document Document Title
WO/1999/044286A2
A digital filter (1) has a filter cell (4a) for generating processed data. The digital filter cell includes plurality of coefficient registers (14) which are arranged to circulate a plurality of coefficient values that correspond to a pl...  
WO1999027522A3
In an audio processing arrangement (2) input signals from a plurality of input sources (4, 6) are weighted by weighting factors x and y using weighting elements (10, 12). The weighted input signals are combined to a combined signal by an...  
WO/1999/039440A2
The device for processing a digital signal comprises an input (10) for receiving the digital signal and an output (18) for supplying an output signal. The device further comprises filter means (14) coupled to the output (18) for deriving...  
WO/1999/038155A1
The invention relates to the coding of speech at a variable bit rate, whereby the bit rates can vary from frame to frame, and more specifically to the methods and filters used for improving the quality of the decoded speech. In the solut...  
WO1999022451A3
The invention makes it possible to combine a scaleable audio coder with TNS technology. According to the inventive method for encoding time signals (x1) sampled in a first sampling rate, second time signals (x2) with a sampling rate smal...  
WO/1999/038257A2
A decimating time discrete filter comprises transform means (2) for transforming a real valued input signal (i) into a complex signal (u) represented by its real part Re{u} and its imaginary part Im{u}. The output signal (u) is down samp...  
WO/1999/035009A1
A vehicle computer system has an audio entertainment system implemented in a logic unit and audio digital signal processor (DSP) independent from the host CPU. The audio entertainment system employs a set of ping/pong buffers and direct ...  
WO/1999/034519A1
A decimation filtering apparatus using interpolated second order polynomials compensates for a droop caused by a CIC (Cascaded Integrator-Comb) filter (51). The decimation filter includes a CIC decimation filter (51) for decimation filte...  
WO/1999/033175A1
A number of consecutive samples in unit distance code (here Gray code) are effectively stacked and supplied to respective sum and threshold devices (20) corresponding to each bit position, to determine the bulk property or 'generic resul...  
WO/1999/033234A1
Group delay equalizer (6) including at least two transmission lines (5, 5') on which the signal to be equalized in digital form and the same signal, 90° phase shifted, are respectively transmitted, in which one or more real filtering ce...  
WO/1999/030413A1
A polyphase quadrature digital tuner system which converts input signals to baseband inphase and quadrature signal components. The system includes a signal receiver which receives the input signals having a frequency centered around a pr...  
WO/1999/027522A2
In an audio processing arrangement (2) input signals from a plurality of input sources (4, 6) are weighted by weighting factors x and y using weighting elements (10, 12). The weighted input signals are combined to a combined signal by an...  
WO1999009695A3
The invention concerns a method for eliminating interference in a bipolar signal on important line lengths. The signal is routed into a corrector for coarse tuning and fine tuning, and up o a level detector (12) mounted downstream and is...  
WO/1999/023758A1
A processor (30) and integrated filter and detection process (20) having reduced signal processing requirements. The integrated filter and detection process and processor has a first pass filter (12a) that filters input data comprising a...  
WO/1999/022451A2
The invention makes it possible to combine a scaleable audio coder with TNS technology. According to the inventive method for encoding time signals (x¿1?) sampled in a first sampling rate, second time signals (x¿2?) with a sampling rat...  
WO/1999/020985A1
The invention concerns a device for filtering electric signals, in particular signals generated by motor vehicle fuel tank level sensors, comprising a main filter (20), sensing means (30) for detecting crossings between the input signal ...  
WO/1999/021185A1
Several audio signal processing techniques may be used in various combinations to improve the quality of audio represented by an information stream formed by splice editing two or more other information streams. The techniques are partic...  
WO/1999/021187A1
Several audio signal processing techniques may be used in various combinations to improve the quality of audio represented by an information stream formed by splice editing two or more other information streams. The techniques are partic...  
WO/1999/019812A1
A reconfigurable infinite impulse response low-pass filter (20) is described in which the frequency response can be changed by changing a single parameter (22) while the filter gain of the filter remains constant, preferably, unity. The ...  
WO/1999/018666A1
A new signal processing method and a signal processing engine which can achieve extremely fast responsiveness to instantaneous changes in the behavior of the signal, and maintain the accuracy of standard harmonic methods. The signal proc...  
WO/1999/017446A1
A filter for filtering n data sequences in time multiplexing, whereby n is a whole number > 1, comprising a plurality of registers (3¿0?, 3¿1?, 3¿2?, 3¿3?) for intermediate storage of signal sequence signal values or values derived t...  
WO/1999/017290A1
A sample rate converter for non-audio AES data channels is presented. Channel status (C) information is transferred in 192-bit blocks. Access to received C channel data blocks is allowed, before the blocks are re-transmitted at the outpu...  
WO/1999/016169A1
The invention relates to a comb filter consisting of integrators (I1, I2, I3) connected in series, to which a digital data flow with high scanning rate is fed in order to supply a digital data flow with a lower scanning rate. The most si...  
WO/1999/010979A1
A receiver and channelizer for processing a wideband signal is disclosed. The channelizer consists of a receiver for receiving a wideband signal. The received wideband signal is processed by a subsampled DFT-channelizer to extract a sele...  
WO/1999/010980A1
A channelizer for processing a wideband signal to extract a plurality of narrowband signals is disclosed. The channelizer is capable of processing a received wideband signal to extract a plurality of regularly spaced narrowband signals t...  
WO/1999/009648A2
An audio processing system is used to process digital audio signals that represent sound emanating from a source that is moving through three dimensional space. The audio processing system has a filter unit that employs infinite impulse ...  
WO/1999/009695A2
The invention concerns a method for eliminating interference in a bipolar signal on important line lengths. The signal is routed into a corrector for coarse tuning and fine tuning, and up o a level detector (12) mounted downstream and is...  
WO/1999/006922A1
The power consumption of a digital matched filter for finding the value of the correlation between 6-bit digital signals (I¿0?) synchronized with a clock and an inverse spectrum spread code sequence composed of eight inverse spectrum sp...  
WO/1999/007071A1
An adaptive filter is provided which has fixed point or floating point data stored in a data RAM (74) and block scale floating point coefficients stored in a coefficient RAM (84). The data and coefficients are utilized in a filter algori...  
WO1998047313A3  
WO/1999/000901A1
The invention relates to a method for synchronizing a clock pulse with events taking place in a fixed time slot system corresponding to said clock pulse, according to which the events are detected and a counter (23, 24) is controlled by ...  
WO/1999/000893A1
The invention relates to a digital FM demodulator for preparing a frequency modulated signal for the purpose of analysing a signal content, especially for use with radio signals having a DARC codification. Said demodulator comprises at l...  
WO/1999/000898A1
A system and method for providing a dc accurate multi-rate digital filter with common coefficient set and dc gain correction utilizes at least one common coefficient set and at least one dc gain correction factor to provide a variable, d...  
WO/1998/059422A1
A method and system for providing a filter having an increased speed and decreased settling time are disclosed. The method and system comprise summing means (210, 220) for adding and subtracting. The method and system further comprise me...  
WO1998043349A3  
WO/1998/057469A1
A receiver for independent sideband (ISB) signals comprises means (30 to 54) for producing digitised quadrature related zero IF versions of the received signal which are applied to a complex FIR filter structure (56) comprising respectiv...  
WO1998042082A3  
WO1998032223A3  
WO/1998/049775A1
A digital finite impulse response bandpass filter is described. Analog to digital conversion (A/D) of an input signal uses a Sigma-Delta ($g(S)-$g(D)) converter, resulting in a digital sequence representation of the input signal. A low-p...  
WO/1998/047313A2
A filterbank structure is provided which provides a flexible compromise between the conflicting goals of processing delay, filter sharpness, memory usage and band interaction. The filterbank has an adjustable number of bands and a stacki...  
WO/1998/047227A1
A dual-processing interference cancelling system and method for processing a broadband input in a computationally efficient manner. Dual processing divides the input into higher and lower frequency bands and applies adaptive filter proce...  
WO/1998/045960A1
A spread spectrum communication system is provided in which a receiver is adapted to despread multi-bit digital signals transmitted with a fixed chipping rate using two or more different spreading code lengths. As a result, a longer spre...  
WO/1998/044629A1
The invention concerns a device for processing digital signals carried between a common port (C) and M particular ports (P�1?,....., P�M?) comprising a linear processing module (T�1?,....., T�M?) and comprising particular filters...  
WO1998025343A3  
WO/1998/043369A1
A combined, parallel adaptive equalizer/echo canceller is disclosed. The equalizer/canceller receives at least one input signal which is split into n taps. The n taps are multiplied by corresponding n tap coefficients to produce n tap ou...  
WO/1998/043237A1
A recognition system (10) incorporates a filterbank analyser (16) producing successive data vectors of energy values for twenty-six frequency intervals in a speech signal. A unit (18) compensates for spectral distortion in each vector. C...  
WO/1998/043349A2
In a digital receiver (2), an input signal is processed by a tuner (4), a filter (6) and a demodulator (8) which derives quadrature signals I and Q. The quadrature signals I and Q are sampled with a fixed sample rate f�SAMPLE?. The sam...  
WO/1998/042082A2
The invention relates to a method and arrangement for forming an address, the arrangement being used for forming a corrector table (130) address employed in signal predistortion that is used for compensating for signal distortions. The d...  
WO/1998/039946A1
A speech processor which continuously uses the impulse response used by the preceding frame when a speech signal is included in the microphone input signal or the currently updated impulse response when no speech signal is included in th...  
WO/1998/038766A1
A sample rate converter (200) is described for converting an input data stream including a plurality of input samples (X) at one sample rate to an output data stream including a plurality of output samples (Y) at another sample rate. The...  

Matches 901 - 950 out of 13,158