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7629915 High resolution time-to-digital converter and method thereof  
A time-to-digital converter (TDC) is disclosed, the TDC comprising: a plurality of parallel circuits for receiving a common first clock and for generating a plurality of delayed clocks; a plurality...
7629916 Multiple output time-to-digital converter  
A multiple output time-to-digital converter (TDC) and an Analog-to-Digital Converter (ADC) incorporating the multiple output TDC is disclosed.
7609192 Control of analog to digital conversion for analog I/O boards  
A system and method for converting analog signals to digital signals minimize the latency of the analog to digital conversion for real-time systems. The conversion system and method implements the...
7589657 Analog to digital converter with interference rejection capability  
An analog to digital converter (ADC) with interference rejection capability and method thereof are disclosed. The ADC includes a threshold generator, a comparator circuit, a counter and an...
7583218 Comparator and A-D converter  
A comparator is provided that outputs a comparison result obtained by comparing two signals. The comparator includes a positive buffer that converts a positive comparison signal, which has a level...
7573409 Variable sized aperture window of an analog-to-digital converter  
An improvement in sampling a high frequency input analog signal and converting it to a digital output signal is disclosed. This is accomplished by using a multitude of analog-to-digital converters...
7570190 Method and system for operating a comparator  
A method and system for operating a comparator ( 602 ) is provided. The method includes analyzing an output ( 612 ) of the comparator ( 602 ) based on one or more of a transition of the output,...
7557746 Time domain interpolation scheme for flash A/D converters  
An analog-to-digital converter circuit comprises a first voltage comparator coupled to a first reference voltage and a signal voltage, the first voltage comparator having first negative and first...
7528760 Class D analog-to-digital converter  
A new analog-to-digital (ADC) circuit and architecture and the corresponding method of implementation are provided. The analog input signal is converted into a modulated pulse stream such as by a...
7525472 Integration type and converter and device including same  
An integration type A/D converter in which a dynamic range is enlarged while keeping a simple circuit configuration is provided. Offset potential of an integrator is to be variable. Specifically,...
7501973 High-resolution time-to-digital converter  
A time-to-digital converter includes a first delay line, a second delay line, comparators, and an encoder. The first delay line includes first resistors coupled in series and receives a first...
7461973 System and method for monitoring environmental conditions  
A system and method are disclosed for monitoring environmental conditions of a perishable product. The system includes an environmental sensor configured to sense one or more environmental...
7460441 Measuring a long time period  
A time period of an event is determined by charging a known value capacitor from a constant current source during the event. The resultant voltage on the capacitor is proportional to the event time...
7450049 Digitization apparatus  
The digitization apparatus includes, as a main scale, a pulse delay circuit constituted by a plurality of delay units connected in series or in ring form, a latch/encoder, a circulation number...
7436342 Numerical full well capacity extension for photo sensors with an integration capacitor in the readout circuit using two and four phase charge subtraction  
A detector circuit having an integration capacitor coupled to an amplifier via a switch matrix and a comparator coupled to the amplifier, the integration capacitor operable in two or more phases,...
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...
7336213 Polarity independent precision measurement of an input voltage signal  
Polarity independent precision measurement of an input voltage signal is accomplished using a voltage integrating circuit that receives a first positive reference voltage and the input voltage...
7330144 Analog-to-digital conversion method and analog to digital converter  
In an analog-to-digital converter, a generating unit executes analog-to-digital conversion of a first input signal and a second input signal based on an analog-to-digital conversion characteristic...
7324035 Amplifier with pulse coded output and remote signal reconstruction from the pulse output  
An amplifier-based system having pulsed output includes an amplifier for amplifying a time varying voltage signal to produce an output voltage signal. A voltage-to-current (V-I) converter converts...
7319425 Comparator-based switched capacitor circuit for scaled semiconductor fabrication processes  
Described is a switched capacitor circuit for performing an analog circuit function. Unlike conventional switched capacitor circuits employing operational amplifiers, the switched capacitor circuit...
7317415 System, method, and product for scanning of biological materials employing dual analog integrators  
In one embodiment, a system is described for reducing a dark period between successive data acquisition periods associated with the detection of one or more target molecules hybridized to at least...
7315270 Differential delay-line analog-to-digital converter  
Differential delay-line analog-to-digital (A/D) converters for use in current and power sensing applications are provided. These A/D converters are well suited for a wide range of electronic...
7268719 Analogue to digital conversion device operable on different sampling clocks  
In an A/D conversion device, each delay unit in a pulse delay circuit has inverters INV of m×n stages (m, n are positive integers), a clock generator has m-delay lines, and each delay line has...
7248200 Analog to digital conversion method using track/hold circuit and time interval analyzer, and an apparatus using the method  
An analog signal is sampled; a reference signal synchronized to the sampling is generated; the sampling result is compared to said reference signal; the time interval from the sampling point to the...
7248197 A/D converter that is implemented using only digital circuit components and digital signal processing  
A TAD (time analog/digital) type of A/D converter has plural series-connected delay units each producing a delay in accordance with the level of a converter input voltage, with a first-stage delay...
7205924 Circuit for high-resolution phase detection in a digital RF processor  
A novel time-to-digital converter (TDC) used as a phase/frequency detector and charge pump replacement in an all-digital PLL within a digital radio processor. The TDC core is based on a...
7142140 Auto scanning ADC for DPWM  
A system for monitoring interrupts to a processor includes a multiplexer having a plurality of inputs connected to receive various analog inputs. The multiplexer further has an output which is...
7136005 Accurate low noise analog to digital converter system  
An accurate, low noise conditionally resetting integrator circuit in an analog to digital system samples, with an analog to digital converter, the output of an integrating circuit a number of times...
7119610 Circuit arrangement  
Circuit arrangement for demodulating a voltage which is ASK modulated by alternating the amplitude between a low and a high level. Respective charging voltages are produced on first and second...
7113886 Circuit and method for distributing events in an event stream  
A circuit and related method for distributing events in an event stream (i.e., an electronic signal having a plurality of rising edge transitions and falling edge transitions). The circuit...
7038610 Integration type A/D converter, and battery charger utilizing such converter  
An integration type A/D converter has two sets of integration type A/D converter sections which can be periodically switched over at a predetermined period, with one converter section integrating...
7027498 Data adaptive ramp in a digital filter  
A system and method for improving the performance of digital filters. The data bandwidth and spectral control are improved by adaptively selecting ramp-up and ramp-down symbols based on the actual...
6975251 System for digitizing transient signals with waveform accumulator  
An apparatus for capturing and digitizing a signal derived from an event has a memory for storing a sequence of analog samples from the signal derived from the event in a sampling operation...
6956518 Method and apparatus for subclocking a SAR analog-to-digital converter  
Method and apparatus for subclocking a SAR analog-to-digital converter. A method is disclosed for clocking the operation of a SAR analog-to-digital converter (ADC). A low frequency clock and a high...
6949903 Method and apparatus for digitizing a voltage  
When digitizing a voltage, a capacitor is charged, through an impedance, to a voltage value (Um) dependent on the voltage to be digitized. The limits of that one of a plurality of voltage ranges in...
6940442 Analog-to-digital conversion of a radiocommunication signal  
A method for analog/digital conversion of a radiocommunication signal using an analog analog/digital converter preceded by variable gain amplifier, wherein the frequency band of the converted...
6873282 Differential time-to-threshold A/D conversion in digital imaging arrays  
Differential measurements allow correction of fixed-pattern noise errors in digital imaging arrays which use time-to-threshold A/D conversion techniques. Two time-to-threshold measurements are made...
6819281 A/D conversion circuit and solid imaging device  
An A/D conversion circuit 20 comprises a coupling capacitor C 201 , feedback capacitor C 202 , switch SW 202 , amplifier 201 , comparison portion 202 , capacitance control portion 203 , and...
6816102 System for digitizing transient signals  
An apparatus for capturing and digitizing at least one analog signal derived from an event with a signal duration that is short compared to the interval between consecutive analog signals has two...
6809678 Data processor controlled DC to DC converter system and method of operation  
A flexible, reliable and economical DC to DC power converter system includes a plurality of DC to DC converter units, a pulse width modulation current share bus interconnecting the DC to DC...
6762706 Reduced power analog-to-digital converter and method thereof  
A reduced power analog-to-digital (A/D) converter is disclosed herein. Reference current to an op-amp used in an A/D converter is reduced during later conversion cycles in an A/D conversion...
6750796 Low noise correlated double sampling modulation system  
A charge balancing modulation system for digitizing the output of a variable impedance sensor utilizes synchronous excitation of the input sensor and AC coupling of the analog input signal. The...
6720895 Method of calibrating an analog-to-digital converter and a circuit implementing the same  
A method of calibrating a high-speed analog to digital converter and an ADC that implements the method. Multiple linear regression analysis is used to calibrate the stages of a pipeline ADC to...
6653962 Superconducting dual function digitizer  
A dual function superconducting digitizer circuit which can selectively function either as an analog-to-digital converter (ADC) or as a time-to-digital converter (TDC). Superconducting ADCs and...
6559788 Parallel and shared parallel analog-to-digital conversion for digital imaging  
A machine used for acquisition of digital images. A counter tracks the elapsed time since the beginning of image acquisition. When an analog sensor output changes by a pre-set amount, the count is...
6525675 Position encoder for determining the angle or position and the total angle on distance moved  
An angular position/position encoder is provided for determining the position of a moving part through evaluation of the direction-specific changes in the measured values recorded and for serial...
6522982 Energy-to-pulse converter systems, devices, and methods wherein the output frequency is greater than the calculation frequency and having output phasing  
An energy-to-pulse (E2P) converter for converting analog voltage and current measurements into digital power consumption readout that has an improved output frequency range and can eliminate the...
6501399 System for creating and amplifying three dimensional sound employing phase distribution and duty cycle modulation of a high frequency digital signal  
A method of presenting audio information where changes in amplitude and changes in frequency in two channels (stereo) have the additional parameter of phase information added to re-create the...
6498572 Method and apparatus for delta modulator and sigma delta modulator  
According to the invention, oscillating signals are generated from analog signals by providing an analog signal having a variable slope or amplitude to a circuit with a variable operating point and...
Matches 1 - 50 out of 266 1 2 3 4 5 6 >