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7612699 A/D converter circuit and A/D conversion method  
An A/D converter circuit uses first and second ring delay lines. The first and second ring delay lines are supplied with input signals, which increase/decrease oppositely from each other with...
7605355 System and method for a high dynamic range sensitive sensor element array  
A high dynamic range sensitive sensor array is described which uses a combination of pixel structures, some of which incorporating phase domain integration techniques to accurately capture high and...
7576673 Increasing the dynamic range of pulse width modulation in analog to digital converters  
This disclosure relates to adjusting a limit cycle frequency of a pulse width modulation in an analog to digital converter as a function of an input signal level to increase dynamic range.
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...
7532145 High resolution and wide dynamic range integrator  
Integrators are electronic components used to condition received analog signals, for example prior to Analog to Digital Conversion. Wide dynamic range, high gain and fine resolution are required of...
7528664 Method of and apparatus for improving the signal-to-noise ratio for a digital conversion circuit  
The signal-to-noise ratio for a digital conversion circuit is improved by taking a source signal and generating N signals that are each phase-shifted relative to each other, thereby generating N...
7525471 Wide-input windowed nonlinear analog-to-digital converter for high-frequency digitally controlled SMPS  
In embodiments, a new analog-to-digital converter (ADC) architecture can be used with switch-mode power supplies (SMPS) operating at switching frequencies higher than 10 MHz. Analog-to-digital...
7522084 Cycle time to digital converter  
A cycle time to digital converter includes a dual delay lock loop, multi phase sampling detector and VDL sampling detector. The dual delay lock loop generates the first voltage corresponding to the...
7515084 Analog to digital converter using asynchronous pulse technology  
A digital to analog converter includes a time encoder that converts an analog input signal into a asynchronous pulse sequence, a pulse asynchronous DeMUX circuit that converts the asynchronous...
RE40650 Infrared motion detection signal sampler  
The digital sampler circuit processes an output signal from a high gain analog amplifier having as input an infrared motion detector output signal and a negative low pass filtered feedback signal....
7498966 Method and system for receiving distance measurement equipment channels in an undersampled broadband receiver  
A method to receive channels in an undersampled broadband receiver comprising mixing bands of assigned channels with an oscillator to generate downconverted bands, wherein each assigned channel has...
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...
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,...
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...
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...
7388534 Adaptive data acquisition for an imaging system  
An adaptive data acquisition circuit ( 26 ) includes an amplifier ( 14 ) for amplifying electrical pulses generated by a detector ( 12 ) responsive to energy incident at the detector. The adaptive...
7388530 A/D-converter  
The invention relates to at least one self-oscillating loop (SOL) comprising at least one forward path (FP), at least one feedback path (FBP) wherein said at least one forward path (FP) comprises...
7376349 Analog to digital converter systems and methods  
Systems and methods are disclosed herein to provide analog-to-digital converter techniques. For example, in accordance with an embodiment of the present invention, an analog-to-digital converter...
7355544 TAD A/D converter in which pulse delay circuit is initialized prior to each conversion operation for deriving an output digital value  
In a TAD (Time Analog-to-Digital) type of A/D converter in which delay units of a pulse delay circuit successively transfer a pulse signal during each of successive measurement intervals, with each...
7345614 Analog to digital converter with a series of inverting elements  
An A/D converter has inverting elements and delay elements alternately disposed in series. Each inverting element receives an analog voltage signal as a power source and converts a pulse signal in...
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...
7321731 Optical pulse position modulation discriminator  
Systems and methods are disclosed herein to provide various optical techniques. For example, in accordance with an embodiment of the present invention, a pulse position modulation discriminator...
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...
7312738 Apparatus and method for sigma delta signal treatment  
A sigma delta signal treating apparatus includes: (a) a low pass filtered signal path including at least one low pass filter; and (b) a quantization noise filtered signal path coupled with the low...
7292176 Delay line, analog-to-digital converting device and load-sensing circuit using the same  
A delay line, an analog-to-digital converting device and a load-sensing circuit using the same are provided. The delay line comprises a delay-control terminal, a reset terminal, and n delay cells...
7292175 Method of testing A/D converter circuit and A/D converter circuit  
For testing an A/D converter circuit including a pulse delay circuit constituted by a plurality of cascade-connected delay units, and an encoding circuit configured to count the number of the delay...
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...
7265700 Method and apparatus for extracting individual pulses from an input signal  
Digital samples corresponding to a pulsed input signal are provided from an ADC to a memory for storage and to a pulse extraction circuit. The pulse extraction circuit detects the leading and...
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...
7242341 Analog-to-digital converter and analog-to-digital conversion method  
The analog-to-digital converter directly acquires a supplied clock signal, generates a current control signal depending on the sampling frequency of the clock signal, so as to control a current...
7196651 Analog-to-digital converter (ADC)  
The present invention shows a high speed ADC which can be implemented easily and with low cost into a pure digital integrated circuit. This is realized by converting the analog input voltage into a...
7152010 Calibrating an analog-to-digital converter using a test signal with a precise DC voltage  
A self-calibrating sigma-delta converter (SCADC) functions in a calibration mode and in an operational mode. In the calibration mode, a test circuit of the SCADC generates test signals that are...
7106239 Rail-to-rail delay line for time analog-to-digital converters  
A time-analog-to-digital converter (TAD) utilizes a time-to-digital approach for analog-to-digital conversion. The TAD includes two voltage-to-delay converters (VDCs), e.g., CMOS inverter chains,...
7095353 Frequency to digital conversion  
A technique of processing an input signal having an input signal phase is disclosed. The technique includes determining a number of transitions of the input signal within a period having a start...
7084802 Signal processing circuit  
A signal processing circuit can obtain a ratiometric output with high precision and high responsiveness in a relatively easy and simple way. A pulse generation circuit generates a pulse signal...
7030803 Analog-to-digital converter and method of analog-to-digital conversion  
The A/D converter has first and second PPDC circuits (pulse-phase-difference coding circuits). The first PPDC circuit performs A/D conversions on the reference voltage and on the voltage signal...
6940443 Analog to digital converter with a pulse delay circuit  
An A/D converter has a pulse delay circuit including a plurality of inverting circuits to each of which an analog voltage signal is inputted through a first pair of power supply lines. Each of the...
6831585 Distributed averaging analog to digital converter topology  
An analog to digital converter includes a first amplifier array connected to taps from a reference ladder, a second amplifier array, wherein each amplifier in the first amplifier array is connected...
6809676 Method and system for VCO-based analog-to-digital conversion (ADC)  
A VCO ( 110 ) can be configured to convert an analog input signal ( 105 ) to a digital output signal ( 125 ). In accordance with the inventive arrangements, the VCO can convert the analog input...
6798372 Switched-capacitor frequency-to-current converter  
A frequency-to-current converter operative to convert a clock frequency to an output current is described; the frequency-to-current converter ensures that the output current increases linearly with...
6788230 Multi-channel A/D converter and system using the same  
A multi-channel analog/digital (A/D) converter and a system includes a programmable memory on which a channel selection order is recorded, a channel selection unit which selects one of multiple...
6775304 Multi-channel implementation approach for superconducting digital router/signal processor  
A multi-channel superconducting digital router/signal processor ( 28 ) for processing and conditioning an analog input signal ( 12 ) and converting it to a digital output signal ( 26 ). The digital...
6731763 Audio A/D converter using frequency modulation  
According to the exemplary embodiments, a voltage or current-controlled oscillator is controlled in frequency by the signal (i.e., voltage or current) from a microphone. The frequency modulated...
6661365 Circuit architectures and methods for A/D conversion  
An array of transistor circuits is fabricated so that each transistor circuit in an array of transistor circuits has a switching threshold determined by intrinsic switching thresholds of at least...
6661364 Semiconductor device for inverter controlling  
In a semiconductor device for inverter controlling that includes an AD converter and controls a pulse width of a multi-phase PWM signal on the basis of a digital value obtained by the AD converter,...
6650268 Method and apparatus for a pulse decoding communication system using multiple receivers  
A multiple receiver approach is disclosed for a pulse decoding communication system, which can enhance system robustness and increase information carrying capacity. Two or more receivers are used...
6639528 Apparatus for multi-channel signal processing and communication terminal using the same  
A signal processing apparatus includes a first signal processor which processes a first channel of signal; and a second signal processor which processes a second channel of signal independently...
6630897 Method and apparatus for signal detection in ultra wide-band communications  
Methods and apparatus for detecting ultra wide-band signals using circuitry having nonlinear dynamics characteristics are disclosed. The receiver circuit can be implemented using a simple tunnel...
6611223 Method and apparatus for ultra wide-band communication system using multiple detectors  
A method and apparatus for detecting ultra wide-band (UWB) signals using multiple detectors having dynamic transfer characteristics. A receiver circuit is implemented using devices such as op-amps...
Matches 1 - 50 out of 353 1 2 3 4 5 6 7 8 >