Matches 1 - 50 out of 247 1 2 3 4 5 >


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US20110181452 Usage of Speaker Microphone for Sound Enhancement  
The method and system use a speaker available in an audio end device when not in use as a microphone. The speaker is utilized for enhancing the sound quality received by the person or device at...
US20110210876 Plug-in power line conditioner  
A plug-in power line conditioner is configured to receive an AC voltage from a circuit and insert a correction signal onto the circuit.
US20120133535 Interleaved Pipelined Binary Search A/D Converter  
The present invention is related to a pipelined analog-to-digital converter, ADC, for converting an analog input signal into a digital signal comprising—a plurality of comparing means having...
US20110260898 MISMATCH COMPENSATORS AND METHODS FOR MISMATCH COMPENSATION  
In a compensator for compensating mismatches, and in methods for such compensation, the compensator compensates for mismatches in output signals of a system with mismatches during normal operation...
US20120146819 SIGMA-DELTA DIFFERENCE-OF-SQUARES LOG-RMS TO DC CONVERTER WITH FORWARD PATH MULTIPLIER AND CHOPPER STABILIZATION  
A sigma-delta (ΣΔ) difference-of-squares LOG-RMS to digital converter for true RMS detection by merging a ΣΔ modulator with an analog LOG-RMS to DC converter based on a difference-of-squares....
US20110254715 CONTROLLER TO CONTROL ELECTRICAL POWER OF LOAD IN CONSTANT  
A heater controller for controlling a heater precisely in the equi-power mode is disclosed. The controller includes a current source, a voltage monitor to detect a voltage drop caused in the...
US20120161991 Offset Cancellation For Analog To Digital Converters  
An offset cancellation circuit for canceling an offset voltage in an amplifier is provided herein. The offset cancellation circuit includes a current source configured to provide an offset...
US20120256772 Hardware Efficient On-Chip Digital Temperature Coefficient Voltage Generator and Method  
An on-chip DC voltage generator and hardware efficient method provide for generating linear DC voltages with a programmable negative temperature coefficient. A temperature-dependent DC voltage is...
US20120075128 SUCCESSIVE APPROXIMATION A/D CONVERTER  
A successive approximation A/D converter, has a main DAC having a capacitive element group coupled to a top node and a switch group; a comparator comparing voltage of the top node with comparison...
US20120056766 NON-LINEARITY CORRECTION THAT IS INDEPENDENT OF INPUT COMMON MODE, TEMPERATURE VARIATION, AND PROCESS VARIATION  
In pipeline analog-to-digital converters (ADCs) the third harmonic can degrade the performance of the ADC, and conventional circuits that attempt to cancel this third harmonic are oftentimes...
US20120026023 SUCCESSIVE APPROXIMATION AD CONVERSION CIRCUIT  
A successive approximation AD conversion circuit has improved conversion accuracy without prolonging the time necessary for conversion. The successive approximation AD conversion circuit includes...
US20130009796 CLOCK GENERATOR CIRCUIT FOR SUCCESSIVE APPROXIMATIOM ANALOG TO-DIGITAL CONVERTER  
A sampling clock generator generates a sampling clock based on a reference clock and an internal clock. An internal clock generator causes, during a period in which the sampling clock is at a...
US20110199244 Pipelined ADC Calibration  
A method of calibrating a pipelined analog to digital converter (400) having a plurality of DAC elements (410) and an additional calibration DAC element (420), in which a combination of positive,...
US20140062737 Adaptive Ternary A/D Converter for Use in an Ultra-Wideband Communication System  
In an ultra-wideband communication system, a 1-trit ternary analog-to-digital converter (“ADC”) having dynamic threshold adaption and providing an output in ternary form [+1, 0, −1]. The ternary...
US20110227766 Adaptive Ternary A/D Converter for Use in an Ultra-Wideband Communication System  
In an ultra-wideband communication system, a 1-trit ternary analog-to-digital converter (“ADC”) having dynamic threshold adaption and providing an output in ternary form [+1, 0, −1]. The ternary...
US20150035689 Multi-stage parallel super-high-speed ADC and DAC of logarithmic companding law  
Multi-stage parallel super-high-speed ADC and DAC of a logarithmic companding law has a voltage follower switch having zero voltage drop, and also has a lossless threshold switch group, wherein a...
US20130113638 METHOD AND APPARATUS FOR EVALUATING WEIGHTING OF ELEMENTS OF DAC AND SAR ADC USING THE SAME  
A method and an apparatus for evaluating weighting of elements of a DAC and a SAR ADC using the same are provided. An equivalent weighting of each composed element is obtained by adding a...
US20100045375 DEVICE FOR THE LOW-DISTORTION TRANSFORMATION, PARTICULARLY AMPLIFICATION OF SIGNALS  
The invention describes a device for the low-distortion conversion, especially amplification, of signals. In one embodiment, the device comprises a digital-to-analog converter having adjustable...
US20120161990 INTEGRATOR AND OVERSAMPLING A/D CONVERTER HAVING THE SAME  
A high order integrator is configured using an operational amplifier, a first filter connected between an input terminal of the integrator and an inverted input terminal of the operational...
US20140009316 Complementary Switched Capacitor Amplifier for Pipelined ADCs and Other Applications  
The present disclosure is directed to a switched capacitor amplifier that includes a switched capacitor network and a complementary push-pull amplifier. The switched capacitor amplifier of the...
US20120280841 Zero-power sampling SAR ADC circuit and method  
A switched-capacitor circuit (10, 32 or 32A) samples a first signal (VIN+) onto a first capacitor (C1 or CIN1) by switching a top plate thereof via a summing conductor (13) to a first reference...
US20130120171 REDUCING THE EFFECT OF NON-LINEAR KICK-BACK IN SWITCHED CAPACITOR NETWORKS  
A method and device involve a circuit having a switched capacitor network that is switchably connected to an input signal. A randomly determined amount of dither is injected into a circuit having...
US20140247169 Multi-Level Sigma-Delta ADC With Reduced Quantization Levels  
A multi-level sigma-delta Analog to Digital converter provides multi-level outputs using a quantizer with reduced quantization levels. The converter comprises a direct path comprising a...
US20110175759 OPERATIONAL AMPLIFIER AND PIPELINE AD CONVERTER  
A differential voltage interconnect (W101a) electrically connects the gate electrode of a transistor to be used among differential transistors (T101a, T101a, . . . ) to an input node receiving an...
US20090195423 Analog to digital converters  
An analog to digital converter (ADC) converts an analog signal to a digital signal. The ADC includes an input channel, a sampling circuit coupled to the input channel, an integrator coupled to the...
US20120119929 INTEGRATORS FOR DELTA-SIGMA MODULATORS  
Methods, systems and devices are disclosed. Among the disclosed devices is an electronic device that, in certain embodiments, includes a plurality of memory elements or imaging elements connected...
US20120001781 Digital Background Calibration System and Method for Successive Approximation (SAR) Analogue to Digital Converter  
The invention provides a digital background calibration system and method for a successive approximation analog-to-digital converter comprising a digital to analog converter (DAC) having a...
US20110309959 METHOD FOR IMPROVING THE RESOLUTION AND FOR CORRECTING DISTORTIONS IN A SIGMA-DELTA MODULATOR, AND SIGMA-DELTA MODULATOR IMPLEMENTING SAID METHOD  
In a method for improving resolution and for correcting distortions for a sigma-delta modulator, a modulator converts an analog input signal into a secondary output digital signal sampled at a...
US20120112936 QUANTIZATION CIRCUIT HAVING VCO-BASED QUANTIZER COMPENSATED IN PHASE DOMAIN AND RELATED QUANTIZATION METHOD AND CONTINUOUS-TIME DELTA-SIGMA ANALOG-TO-DIGITAL CONVERTER  
A quantization circuit includes a quantizer and a compensation circuit. The quantizer includes a voltage-to-phase converter and a phase difference digitization block. The voltage-to-phase...
US20110267210 Shaping Inter-Symbol-Interference in Sigma Delta Converter  
A signal converting system is described that has a multi-segment digital to analog converter coupled to one or more error shaping loops. Each error shaping loop includes a quantizer with a...
US20100026535 SEGMENTED OPTICS CIRCUIT DRIVE FOR CLOSED LOOP FIBER OPTIC SENSORS  
Systems and methods for improving output resolution of an optical drive circuit in an optical sensor. The optical sensor circuit includes an optics circuit that generates analog measurement data,...
US20140167988 DIGITAL-TO-ANALOG CONVERTER (DAC) CIRCUIT AND WEIGHT ERROR ESTIMATION/CALIBRATION METHOD THEREOF  
The present invention discloses a DAC circuit and a weight error estimation/calibration method thereof. In the method, an output switching circuit dynamically selects several conversion cells (at...
US20090267814 CIRCUIT ARRANGEMENT, L[OCAL] I[NTERCONNECTED] NE[TWORK] COMPRISING SUCH CIRCUIT ARRANGEMENT AS WELL AS METHOD FOR PROCESSING INPUT SIGNALS OF THE LIN  
Circuit arrangement, L[ocal]I[nterconnected]N[etwork] comprising such circuit arrangement as well as method for processing input signals of the LIN In order to further develop a circuit...
US20130141260 PIPELINE ANALOG-TO-DIGITAL CONVERTER  
A pipelined ADC includes a first, second, and third pairs of comparators. The first pair of comparators compare an input voltage to a first positive reference voltage and to a first negative...
US20130088374 SUCCESSIVE APPROXIMATION ANALOG TO DIGITAL CONVERTER WITH COMPARATOR INPUT TOGGLING  
A successive approximation analog-to-digital converter (SA-ADC) includes a reference generator configured to output a first voltage and a second voltage; a comparator, the comparator having a...
US20100328120 Comparator Based Asynchronous Binary Search A/D Conveter  
The present invention is related to an analog-to-digital converter circuit (1) wherein a comparator based asynchronous binary search is used. The architecture comprises a self-clocked...
US20100013684 AD converter and AD conversion method  
An exemplary object of the present invention is to achieve both of high-speed operation by parallel processing and a simple configuration by sequential comparison processing, so as to realize high...
US20130127647 SUCCESSIVE APPROXIMATION REGISTER ADC AND METHOD OF LINEARITY CALIBRATION THEREIN  
A successive approximation register analog to digital converter (SAR ADC) and a method of linearity calibration therein are provided. Each composed element Ei in a part of the composed elements...
US20110285562 Continuous-time delta-sigma ADC with compact structure  
A continuous-time delta-sigma Analog to Digital Converter (ADC) includes: a loop filter, for receiving and noise-shaping an analog input signal, and outputting a first loop voltage; a first...
US20140197971 SYSTEMS AND METHODS FOR PROVIDING A PIPELINED ANALOG-TO-DIGITAL CONVERTER  
Systems comprising: a first MDAC stage comprising: a sub-ADC that outputs a value based on an input signal; at least two reference capacitors that are charged to a Vref; at least two sampling...
US20110200152 Continuous Time Analogue/Digital Converter  
Continuous time analogue/digital converter, comprising a sigma delta modulator (MSD1) configured to receive an analogue input signal (x(t)) and comprising high-pass filtering means (MF) the...
US20050253744 Configurable output circuit and method  
A configurable output circuit is disclosed. The output circuit comprises an analog output circuit capable of producing an analog output signal usable to control the output device, a binary output...
US20130321184 SAR Assisted Pipelined ADC and Method for Operating the Same  
A method for operating a SAR assisted pipelined ADC includes enabling a SAR ADC in a current stage circuit for converting an input analog voltage into a digital code during a first time interval,...
US20090066547 ANALOG-TO-DIGITAL AND DIGITAL-TO-ANALOG CONVERSION WINDOW ADJUSTMENT BASED ON REFERENCE CELLS IN A MEMORY DEVICE  
An analog-to-digital conversion window is defined by reference voltages stored in reference memory cells of a memory device. A first reference voltage is read to define an upper limit of the...
US20120280842 System and Method For Supporting Different Types of Oscillator Circuits  
In accordance with some embodiments of the present disclosure, an oscillator circuit comprises, a first pad associated with a first terminal of an oscillator and a second pad associated with a...
US20120056765 METHOD FOR CONTROLLING THE LOOP DELAY IN A SIGMA-DELTA MODULATOR, AND SIGMA-DELTA MODULATOR IMPLEMENTING SAID METHOD  
In a method for controlling the loop delay in a sigma-delta modulator having a loop including an integrator, an analog-to-digital converter, a digital-to-analog converter, and an adder-subtractor,...
US20090289821 PIPELINE ANALOG-TO-DIGITAL CONVERTER HAVING OPERATIONAL AMPLIFIER SHARED BY SAMPLE AND HOLD CIRCUIT AND LEADING MULTIPLYING DIGITAL-TO-ANALOG CONVERTER  
A pipeline analog-to-digital converter includes a sample and hold circuit; a plurality of multiplying digital-to-analog converters having a leading MDAC coupled to the sample and hold circuit; and...
US20130057417 COMPARATOR OFFSET CANCELLATION IN A SUCCESSIVE APPROXIMATION ANALOG-TO-DIGITAL CONVERTER  
A successive approximation analog-to-digital converter (ADC) includes an adjustable voltage source that applies an adjustable voltage to an input of a comparator of the ADC to cancel an offset of...
US20130285843 MULTI-BIT PER CYCLE SUCCESSIVE APPROXIMATION REGISTER ADC  
A main digital-to-analog converter (DAC) receives at least one input and generates an adjusted input. A SAR unit generates a code for controlling the main DAC based on a comparison output of a...
US20090303090 ISOLATION UNIT FOR A CONVENTIONAL 2-CONDUCTOR COMMUNICATION CONNECTION INCLUDING A SENSOR, A MEASUREMENT TRANSMITTER AND A CONTROL UNIT  
For a conventional 2-conductor communication connection, which includes a sensor, a measurement transmitter and a control unit, an isolation unit is provided, which serves for transmission of...

Matches 1 - 50 out of 247 1 2 3 4 5 >