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Patent Searching and Data


Matches 551 - 600 out of 13,092

Document Document Title
WO/2004/086609A1
Systems and methods for providing protection from failure events in a digital audio amplification system. One embodiment of the invention comprises a system having a digital amplifier controller, an amplifier output stage (160) coupled t...  
WO2004055983A8
The present invention relates to a converter converting an input digital signal into an output digital signal. Said converter comprises in particular a set of shift registers able to contain samples of the input or output digital signal....  
WO/2004/079905A1
A numerical string consisting of a ratio of “-1, m, -1” or “1, m, 1” is subjected to a predetermined moving average calculation n times. A numerical string thus obtained is used as a filter coefficient of a basic filter and at le...  
WO/2004/079901A2
The invention concerns a digital filter. The filter comprises at least a first and a second 5 delayed summation line, whereby one of the delay lines comprise a warped filter FIR filter and the other line is a FIR filter, whereby: at leas...  
WO/2004/077408A1
A voice band correcting apparatus in which the signal level of limit bands is amplified by a correction filter, the signal level of a correction signal supplied is compared by a level detector to a preset level, and the result of decisio...  
WO/2004/077670A1
A system and method are disclosed for a nonlinear filter having a nonlinear transfer function. The nonlinear filter comprises a plurality of linear filters (202, 204) each having a filter output, a plurality of nonlinear elements (208, 2...  
WO2004008502A3
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...  
WO/2004/066501A2
A digital compression system including a superresonant filter, which adds samples of a digital data signal at a frequency to previous samples. The added samples are parts of sine or cosine waves, not the sum of the waves. The output sign...  
WO/2004/063835A2
In a Digital Pressure Derivative Technique (DPDT) which uses convolution, an input signal including noise is convolved with a wavelet to produce an output signal which is a derivative of the input signal and which is substantially devoid...  
WO/2004/064261A2
Methods and systems for filtering an analog signal sampled at a very high frequency and outputting a digital signal that has a very low sampling frequency to drive a material metering machine. The high frequency digital input signal is i...  
WO/2004/057759A1
A method, filter and a video coder filtering a signal is described. The filter (92) comprises a first set of multipliers (102, 104, 106) filtering samples of the signal with a first phase of filter coefficients (C2, C4, C6), first summin...  
WO2004023781A3
A channelized filter design for partial band reconstruction having high dynamic range requirements. The analysis filter (505) and synthesis filter constraints of the present invention permit high performance signal detection with an alia...  
WO/2004/055983A1
The present invention relates to a converter converting an input digital signal into an output digital signal. Said converter comprises in particular a set of shift registers able to contain samples of the input or output digital signal....  
WO/2004/054103A1
A multirate filter according to the invention comprises, a) an input unit (10) for receiving an input signal (Sin) and for providing a plurality of intermediate signals (IS1, IS2) in response to said input signal, b) a filter unit (20) c...  
WO/2004/051648A1
There are provided an adaptive equalization circuit and an adaptive equalization method capable of performing a preferable signal processing of high calculation accuracy with a small size and improving the reproduction signal quality and...  
WO2004013964A3
A sample rate conversion system developed to implement a rate change of M7N using a very efficient design implementation. The sample rate conversion system of the present invention is implemented as a CIC-based interpolating sample rate ...  
WO2003063346A3
The invention relates to a method of decreasing the dynamic range of a signal comprising the steps of:- determining a property of the signal,- determining a limitation parameter based on the property of the signal, - limiting the signal ...  
WO2003069499A9
A system and method are disclosed for analyzing an input signal (100) into a plurality of frequency components. In one embodiment, the input signal (100) is processed with a first set of low pass filters (102-132) to derive a first set o...  
WO2004013963A3
The invention relates to a data processing system for performing a polyphase filtering. This circuit comprises functional units (304, 305, 306) able to perform polyphase filterings, and a memory device (301, 302, 308) for storing data an...  
WO2004027998A3
The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels dependent on the sign of the channels, as...  
WO/2004/045095A1
In order to protect against adjacent channel interference and the effects of weak signal in AM signal processing, pre- and post- AM demodulation filters (36 and 38) may be used where the bandwidth of both is varied in the same manner by ...  
WO2004034664A3
Apparatus, methods and articles of manufacture are disclosed for modifying electromagnetic waves by reducing noise in those waves. A transfer function for a plurality of segments is derived through identifying a desired output parameter....  
WO/2004/042553A1
The invention is directed to a digital signal processing method and system for digitally processing a discretized in-put signal (12) provided in form of a plurality of discrete input signal values at corresponding discrete input time ins...  
WO/2004/040770A1
An audio signal reproduction device includes: a seven-dimensional delta-sigma modulation circuit for receiving a PCM signal and delta-sigma modulating the PCM signal; a PWM circuit for pulse-width modulating the signal output from the se...  
WO/2004/040757A1
In a method for determining filter coefficients of a digital filter, particularly in UMTS, the predetermined filter coefficients bv are divided by a same scaling factor s and then quantized in that counted from the most significant bit o...  
WO/2004/038600A1
A reconfigurable filter node including an input data memory adapted to store a plurality of input data values, a filter coefficient memory adapted to store a plurality of filter coefficient values, and a plurality of computational units ...  
WO2003107533A3
Disclosed is a method for digitally filtering K input values by means of a non-linear filter, wherein the filter produces an output value, the R biggest value, from the K input values (K >= R >= 1). The inventive method can be used to pr...  
WO/2004/036747A1
A symmetric unit filter (L10”) is designed by combining in series two unit filters (1L10, 2L10) having asymmetric numerical sequences as filter coefficients (H1 to H3 and H4 to H6). Thus, by designing a filter by series connection, it ...  
WO/2004/036746A1
A digital filter is designed by combining unit filters (L10’, H10’) having a predetermined asymmetric numerical sequence as filter coefficients (H1 to H3). Thus, it is possible to automatically obtain a desired digital filter coeffic...  
WO/2004/036450A1
The computer executes a first operation by a first recurrence formula, receiving a filter order (positive integer) of a universal maximally flat FIR filter, the number of zeros at z=-1 (integer equal to or more than zero), and a paramete...  
WO2003063350A3
The invention relates to a digital signal filtering method, a frequency synthesiser and the corresponding computer programs. More specifically, the invention relates to a method of filtering an original digital signal which is represente...  
WO/2004/034664A2
Apparatus, methods and articles of manufacture are disclosed for modifying electromagnetic waves by reducing noise in those waves. A transfer function for a plurality of segments is derived through identifying a desired output parameter....  
WO/2004/034624A2
A digital group delay compensation system comprising a digital allpass filter that is utilized in an implementation phase; and a system that generates coefficients for the allpass filter used in the implementation phase such that the ove...  
WO/2004/034607A1
A wraparound canceller capable of performing adaptive operation to follow a wraparound wave, a parent station wave phase, and temporal level fluctuation at a high speed and with a high accuracy as well as reducing the device size. By lim...  
WO/2004/029825A1
The invention relates to a method for reconstruction of original signals from relative measurements. According to the invention, the amplitude distortion in a measuring system is exactly compensated by a compensation filter, whereby the ...  
WO/2004/027998A2
The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels dependent on the sign of the channels, as...  
WO/2004/027980A1
An integrated demodulator and decimator circuit (700, 800) including a selective digital sign inverter (703, 803) and a decimator (705, 805). The sign inverter negates selected digital samples based on Weaver demodulation and outputs dem...  
WO2002047262A3
A filtering method is proposed wherein first several filtering steps (I-III,IV-VI) are made. Each step (I-III,IV-VI) includes: generating a filtered signal (I,IV), rounding this filtered signal (II,V) to a certain accuracy and combining ...  
WO/2004/023781A2
A channelized filter design for partial band reconstruction having high dynamic range requirements. The analysis filter (505) and synthesis filter constraints of the present invention permit high performance signal detection with an alia...  
WO/2004/023075A1
An apparatus is described which reduces a time delay and a resultant phase shift in a gyroscope motor drive signal (90). The motor drive signal originates from a numerically controlled oscillator (32) whose output (60) is sampled at a pr...  
WO/2004/013964A2
A sample rate conversion system developed to implement a rate change of M7N using a very efficient design implementation. The sample rate conversion system of the present invention is implemented as a CIC-based interpolating sample rate ...  
WO2002067422A9
An N dimensional signal processor using D scale non-uniform sampling is disclosed. The processor includes a multi-resolution sampler (A) for outputting a stream of non-uniformly spaced samples resulting in an overall average sampling rat...  
WO/2004/013963A2
The invention relates to a data processing system for performing a polyphase filtering. This circuit comprises functional units (304, 305, 306) able to perform polyphase filterings, and a memory device (301, 302, 308) for storing data an...  
WO/2004/008637A1
According to a basic unit filter having a predetermined basic numeric string as a filter coefficient, a high-pass unit filter (H15) and a low-pass unit filter (L13) having pass ranges having a common center frequency Fc are created. Thes...  
WO/2004/008502A2
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...  
WO2002080098A3
Embodiments of a pyramid are described.  
WO2002060114A3
A multi-carrier filter for a wireless communications system employing a multi-carrier signal. The multi-carrier filter includes a first mechanism for receiving the multi-carrier signal and extracting carrier signal components A second me...  
WO/2004/006434A1
A frequency separating system is described utilising tuneable frequency shifting complex converters in which the centre frequency of the band extracted and the bandwidth extracted can be varied depending upon the parameters chosen by the...  
WO/2004/004264A1
A detector for detecting a signal to be measured which has been discretized by a predetermined discretization frequency. The detector includes an analysis signal converter for converting the signal to be measured into a an analysis signa...  
WO2003071683A3
Apparatus and methods are disclosed for treating an input set of weightless binary tuples to order the Hamming values thereof. In the general case, the tuples are thermometer coded in a common direction (left or right) and thereafter an ...  

Matches 551 - 600 out of 13,092