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7436347 Quantiser providing adaptive quantisation steps with cyclic storage  
In one exemplary embodiment, an adaptive quantiser includes: an input; a memory configured to store a representation of the distribution of the quantiser output for an expected input signal; a data...
7436344 Pipeline A/D converter  
The present invention provides a pipeline A/D converter having resolution, allowable conversion processing rate and power consumption satisfying the requests of a system incorporating the pipeline...
7436338 Current mode sigma-delta modulator  
Exemplary sigma-delta modulators include a summing block configured to receive an input signal, a noise shaping unit configured to process an output signal of the summing block, a quantizer...
7436336 Analog digital converter (ADC) having improved stability and signal to noise ratio (SNR)  
A sigma delta (ΣΔ) analog to digital converter (ADC) that compensates for the adverse effects associated with the time delay introduced by delay circuitry of the feedback loop. This ΣΔ ADC...
7432843 Compressive sampling and signal inference  
A signal is temporally compressively sampled. A plurality of analog to digital converters are assembled to sample the signal. Each analog to digital converter of the plurality of analog to digital...
7432841 Delta-sigma analog-to-digital converter with pipelined multi-bit quantization  
A cascaded analog-to-digital converter includes a first stage delta-sigma modulator to quantize an input signal and produce a first quantization error signal. A second, coupled multi-stage...
7432840 Multi-bit sigma/delta converter  
A multi-bit sigma/delta converter for converting an analog input signal into a digital output signal comprises a filter device for filtering the analog input signal which is added to a feedback...
7430239 Bit-detection arrangement and apparatus for reproducing information  
A preprocessing unit converts an analog signal to a processed signal at a sample rate controlled by a first clock signal. A digital phase locked loop locks on the processed signal and outputs a...
7429944 Converter systems having reduced-jitter, selectively-skewed interleaved clocks  
Converter systems are provided that use particular combinations of fixed and variable clock skewers to generate interleaved clock signals for the systems. These combinations have been found...
7429943 Analog to digital (A/D) conversion circuit have a low dynamic range A/D converter  
A low-power, high-dynamic range, analog-to-digital (A/D) conversion circuit for converting an analog signal to a digital signal having a controllable amplifier for amplifying the analog log signal...
7429942 Radio communication device  
A digital signal processor for handling, as a digital signal, data to be transmitted or received and a analog signal processor for handling the data as an analog signal are so arranged as to be...
7429941 Stabilization of sigma-delta converters  
This disclosure relates to monitoring the output of one or more amplifying structures and providing an auxiliary input signal under certain conditions.
7429939 Signal analysis using dual converters and cross spectrum  
A technique for examining the frequency content of an analog signal includes sampling the analog signal using two analog-to-digital converters clocked at the same rate but offset with respect to...
7429938 Method of compressing waveform data with differential entropy based compression  
Waveforms are digitally sampled and compressed for storage in memory. The compression of the data includes generating a truncated entropy encoding map and using the values within the map to obtain...
7427940 Time-to-digital converter with non-inverting buffers, transmission gates and non-linearity corrector, SOC including such converter and method of phase detection for use in synthesizing a clock signal  
A time-to-digital converter (TDC), a system-on-chip including a TDC, a method of phase detection for use in synthesizing a clock signal and a non-linearity corrector for a TDC. In one embodiment,...
7427939 Parallel processed electronic dispersion control  
An apparatus, system and method for providing electronic dispersion compensation. In one embodiment an apparatus may include an analog-to-digital converter and a plurality of adaptive filters...
7427938 Receiver and method thereof  
A receiver and method thereof. The example receiver may include an analog-to-digital (ADC) converter for performing an over-sampling operation on a received signal to generate output data, the...
7427936 A/D converter device and electronic control apparatus including same  
The A/D converter device includes a comparing section and an abnormality judging section. The comparing section compares a voltage of its signal transfer line connected between its input...
7427935 Apparatus and method of generating reference voltage of semiconductor integrated circuit  
An apparatus for generating a reference voltage of a semiconductor integrated circuit includes a resistance control unit that adjusts at least one an adjustment code such that at least one set of...
7427932 Compressive sampling and signal inference  
An optical signal is copressively sampled using an imaging system. The imaging system is created from a plurality of subimaging systems. Each subimaging system comprises a subaperture and a...
7425994 Video decoder with different signal types processed by common analog-to-digital converter  
A video decoder ( 14 ). The decoder comprises an interface ( 30 ) for receiving a set of an integer number S of analog input signals at a same time. The decoder also comprises circuitry for...
7425915 Frequency modulation based flash ADC  
An analog-to-digital converter converts a frequency-modulated signal into a digital signal. The frequency-modulated signal is supplied to multiple comparators, such as low-pass filters, which...
7425914 Integrated circuit having a signal converter  
A method for operating a signal converter, and to an integrated circuit having a signal converter, in particular an analog-digital converter is disclosed. One embodiment includes a plurality of...
7425911 Signal-to-noise ratio when using fewer bits than the number of output bits of an analog to digital converter  
Improving signal-to-noise ratio (SNR) when using fewer bits than the number of output bits of an ADC as digital representation of the strength of the samples of an input signal. In an embodiment,...
7425908 Method of generating a digital signal that is representative of match errors in an analog digital conversion system with the time interleaving, and an analog digital converter with time interleaving using same  
A method for generating a digital signal representative of the pairing error between the channels of an analog digital conversion system with time interleaving, and a method for suppressing the...
7424275 Method and system for sampling a signal  
A system includes a digital circuit that may be clocked by a digital clock signal having an associated clock period. The system also includes a sample clock generation circuit coupled to a sampling...
7424064 Polar transmitter with digital to RF converter  
A polar transmitter, operable in linear mode or switched mode, uses a conversion module to convert baseband signals into amplitude data and phase data. The phase data is used to phase modulate a...
7423574 Analog-to-digital converter with pulse delay circuit  
In a semiconductor-integrated A/D converter, a pulse delay circuit is provided with a plurality of delay units. The plurality of delay units each includes at least one logic gate and operates based...
7423568 Sigma delta modulator  
A circuit for converting the capacitive signal change of a differential capacitor into digital signals, the circuit including a sigma delta modulator. The differential capacitor is a component of...
7423567 Analog-to-digital converter (ADC) having a reduced number of quantizer output levels  
An analog-to-digital converter (ADC) having a reduced number of quantizer output levels provides for reduced complexity and power consumption along with improved linearity. The analog-to-digital...
7423565 Apparatus and method for comparison of a plurality of analog signals with selected signals  
In response to a selected analog applied to the input terminal of an analog-to-digital converter, the digitized output signal is stored in a buffer/register. In making a comparison with a...
7423563 Serial data transfer in a numerically controlled control system to update an output value of the control system  
The invention relates to a serial data transfer in a numerically controlled control system to update an output value of the control system. A variable write depth shift register is used to update...
7423259 Mass spectrometer and method for enhancing dynamic range  
A mass spectrometer comprises an ion detector, a first amplifier, a second amplifier, and a spectra combiner. The ion detector is configured to generate an analog signal indicative of ions detected...
7421376 Comparison of data signals using characteristic electronic thumbprints  
A characteristic thumbprint is extracted from a data signal, the thumbprint based on statistics relating to the data signal. The data signal can be compared indirectly by matching this thumbprint...
7420499 Analog-to-digital converter and threshold-value correcting method  
An analog-to-digital converter includes a track-and-hold circuit, a constant-voltage source, a threshold voltage selection circuit, a first comparator to a seventh comparator, an encoder, and a...
7420498 Signal converter performing a role  
A system with signal converter devices, in particular, ADCs (analog-to-digital converters), a device for use in a signal converter system, and a method for operating a signal converter system is...
7420497 Low offset flash analog-to-digital converter  
A quantizer is described for use in a flash analog to digital converter (ADC), which may be implemented as part of an integrated wireless transceiver or other highly integrated electrical circuit....
7420494 Mismatch shaping Δ-Σ analog to digital converter system  
A mismatch shaping ΔΣ analog to digital converter system includes a plurality of internal ΔΣ analog to digital submodulators to provide an output; a feedback circuit including a feedback...
7420493 Extended range delta-sigma modulator and delta-sigma power converter  
Devices, systems, and methods for providing delta-sigma modulation in conjunction with analog-to-digital or digital-to-analog signal conversion are disclosed. The delta-sigma modulator and...
7420491 Analog signal sampling system and method having reduced average input current  
A novel sampling system having a sampling device responsive to an analog input signal and a reference signal for providing corresponding charges. A switching circuit is provided to supply the input...
7420490 Pre-charge systems and methods for ADC input sampling  
The invention provides methods and systems useful for quickly and accurately sampling a switched capacitive load. Systems are disclosed in which the methods are implemented using an operational...
7420488 Apparatus and method for setting filter coefficient, and recording medium having a program recorded thereon  
Echo preventing circuit includes first and second FIR filters. The outputs of the first and second FIR filters are converted into first and second analog signals. An input/output terminal outputs...
7420485 Sigma-delta modulator and method for sigma-delta modulation  
A sigma-delta modulator is supplied with a data word and includes a first and at least one further modulation stage, each having at least two adders. The adders in the first modulation stage...
7417576 Method and apparatus for detecting an edge  
A detector comprises an analog-to-digital converter. The analog-to-digital converter comprises an input for an analog receive signal and an output for a digital signal. The detector further...
7417575 High-bandwidth high-gain amplifier  
A pipelined analog to digital converter comprises a first stage that receives an input voltage, that generates a first sampled digital value and a first residue voltage, and that includes a first...
7417574 Efficient amplifier sharing in a multi-stage analog to digital converter  
An analog to digital converter (ADC) containing an operational amplifier having a first pair of input terminals and a second pair of input terminals, wherein the output varies if the input signals...
7417569 Sampling rate converter with no timing drift and bounded amplitude error  
Aspects of a sampling rate converter with no timing drift and with bounded amplitude error are presented. Aspects of the method may include computing an intermediate sum by adding a numerator...
7414565 Efficient approach for reducing image transfer time in wireless portable x-ray detectors  
Certain embodiments of the present invention provide for an imaging system including an index value source, a transmitter, a receiver, and an image processing component. The index value source is...
7414564 Enhanced-accuracy converter stages for pipelined signal converter systems  
Converter systems are provided which complement sample capacitors in at least one converter stage with replica capacitors. The replica capacitors are switched to receive replica charges from the...
7414563 Analog-to-digital converter with a plurality of conversions  
An A-D converter includes an A-D converter circuit, a D-A converter circuit, a subtraction circuit, a second amplifier circuit, a reference voltage control circuit, a timing control circuit 18 ,...
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