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7623057 |
Analog digital converter
In one aspect, provided is an A/D converter including: a plurality of capacitor networks each including a first switch group a capacitor group; a second switch group; and a plurality of reference...
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7623053 |
Implantable medical device with low power delta-sigma analog-to-digital converter
In general, this disclosure describes techniques for reducing power consumption within an implantable medical device (IMD). An IMD implanted within a patient may have finite power resources that...
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7623051 |
Metastability error reduction in signal converter systems
Signal converter systems are provided which reduce degradation of system bit error rate that is caused by metastable conversion errors which generally occur when analog input signals are near...
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7623050 |
Digital calibration loop for an analog to digital converter
A method and apparatus to counter effects of an offset voltage by calibrating an analog-to-digital converter (ADC). A digital calibration loop minimizes the effects of offset voltage to improve ADC...
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7619551 |
Audio codec, digital device and voice processing method
An audio codec is provided, comprising an analog to digital converter (ADC) operable to receive an analog input signal for producing a first digital signal, and a first decimator down samples the...
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7619550 |
Delta-sigma AD converter apparatus using delta-sigma modulator circuit provided with reset circuit resetting integrator
In a delta-sigma modulator circuit, an integrator integrates an input signal, and a quantization circuit quantizes the integrated signal with a predetermined quantization number, and outputs a...
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7616147 |
Analog-to-digital converter
An analog-to-digital converter (ADC) is presented. The ADC includes an error amplifier, a ramp generator, and a counting circuit. The error amplifier is used for receiving an output voltage and a...
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7616146 |
A/D conversion circuit, control method thereof, solid-state imaging device, and imaging apparatus
An A/D conversion circuit includes: an input capacitance to which an input signal and a reference signal are sequentially applied; an operational amplifier; a first switch connected between the...
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7616145 |
Reference circuits for sampled-data circuits
A switched capacitor circuit includes a first level-crossing detector to generate a level-crossing detection signal when an input signal crosses a first predetermined level. A first waveform...
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7616143 |
Reconfigurable delta sigma analog-to-digital converter and customized digital filters with embedded flash FPGA and flash memory
An integrated circuit includes at least one analog input. A sample/hold circuit is coupled to the at least one analog input. A reconfigurable delta-sigma ADC is coupled to the sample/hold circuit....
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7616142 |
Sigma-delta modulated analog-to-digital converter having a changeable coefficient
A sigma-delta modulated analog-to-digital converter having an integrator with a first changeable coefficient and/or having an excess loop-delay circuit also having a second changeable coefficient....
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7616140 |
A/D converter preventing results of A/D conversion from being overwritten
An A/D converter capable of generating an interrupt for requesting a control circuit to read the results of A/D conversion, in desired timing. Analog signals input from channels selected by a...
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7616139 |
Analog-to-digital conversion (ADC) based on current flow between paired probes and electrodes
An analog-to-digital converter (ADC) is provided to determine a digital output value according to whether electric current flows between a plurality of probes, to which an input voltage is applied,...
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7612702 |
Analog to digital converter having a non-linear ramp voltage
An analog to digital converter (ADC) includes a digital ramp generator, an analog voltage comparator, a digital to analog converter (DAC) and a data storage device. The digital ramp generator...
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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...
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7609194 |
Clock signal generating device and analog-digital conversion device
A first Delayed Flip Flop includes a first D input terminal, a first clock input terminal, a first output terminal outputting a signal inputted to the first D input terminal based on the clock...
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7609193 |
Method and system for a configurable communications interface
An electronic device having a receiver generating an analog signal from collected image data, a digitizer generating a digital signal from the analog signal and a micro-controller receiving the...
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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...
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7609189 |
Interface for hybrid sigma-delta data converter
A hybrid sigma-delta converter that includes a continuous-time circuit that processes an input signal and generates a first output signal, an interface circuit that receives the first output signal...
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7609187 |
ΔΣ modulator and ΔΣ analog-digital converter
The present invention provides a ΔΣ modulator of a frequency modulation system that can lessen the requirement of linearity for an oscillator. A ΔΣ modulator comprises an oscillating apparatus...
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7605740 |
Flash analog-to-digital converter
A flash analog-to-digital converter comprises a resistive string powered by a reference voltage source for providing a set of equidistant reference voltages and a set of comparators for comparing...
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7605739 |
Differential flash ADC with dual resistance ladder legs receiving amplified inputs
A differential analog to digital converter (ADC) comprises a first resistance ladder leg including two resistances having first ends that communicate with a middle node. A second resistance ladder...
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7605738 |
A-D converter and A-D convert method
There is provided an A/D converter that outputs a digital output signal obtained by digitalizing an analog input signal. The A/D converter includes a bit selecting section that selects a conversion...
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7605737 |
Data encoding in a clocked data interface
One embodiment of the present invention includes a data transmission system. The system comprises a data transmitter that provides a plurality of data bits over at least one data line. The data...
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7605736 |
A/D converter and duty control method of sampling clock
An A/D converter comprises a sample and hold circuit receiving a signal and operating based on a sampling clock, an A/D converting circuit converting an output signal of the sample and hold circuit...
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7605732 |
Systems and methods for kickback reduction in an ADC
Various systems and methods for analog to digital conversion are disclosed. For example, some embodiments of the present invention provide analog to digital conversion systems. The analog to...
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7605731 |
Signal processor with a signal strength detection circuit that is coupled to a loop of an analog to digital converter
A signal processing circuit has an analog to digital converter ( 31 ) for providing a digital signal to a processor ( 15 ) from an analog input signal that is susceptible to variations in signal...
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7605730 |
Analog-digital converting apparatus and radio communication terminal
An analog-digital converting apparatus includes: an analog-digital converting unit that performs a conversion from an analog input signal into a digital output signal; a buffer unit that temporary...
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7605729 |
Apparatus and method for converting analog signal into digital signal taking average value of analog signal for sample period
Provided is an apparatus and method to convert an analog signal into a digital signal, more particularly, an apparatus and method for converting an analog signal into a digital signal, the...
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7602328 |
Data conversion diagnostic bit in a data converter
A data converter ( 10 ) for digitizing an analog input signal and providing digital output data at one or more conversion cycles includes a logic circuit ( 28 ) for generating a data conversion...
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7602325 |
Sigma delta analog to digital converter with internal synchronous demodulation
A sigma-delta (ΣΔ) analog to digital converter with internal synchronous demodulation responsive to a sample clock, reference clock and conversion clock including a sample switching circuit...
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7602322 |
Analog-to-digital conversion controller, optical receiving device, optical receiving method, and waveform-distortion compensating device
An optical receiving device of the present invention receives optical signals from an optical transmitting device which uses a modulation format wherein an optical intensity waveform of each symbol...
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7602321 |
Adaptive composite analog to digital converter
A distortion correcting analog to digital converter (ADC) system includes a plurality of ADCs configured to convert an analog signal to a plurality of digital ADC outputs, wherein the plurality of...
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7602320 |
Systems and methods for companding ADC-DSP-DAC combinations
Systems and methods for resizing a signal for use with a fixed-point DSP are provided. More specifically, a process called companding is used in conjunction with fixed-point devices to resize a...
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7598896 |
A/D converter with noise cancel function
An A/D converter comprises capacitors C 1 , C 2 , C 3 , C 4 , and C 5 coupled via a plurality of switches to a differential input/differential output amplifier 1 . The capacitor C 5 determines a...
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7596189 |
Quadrature receiver sampling architecture
Quadrature receiver sampling architecture. A signal ADC performs analog to digital conversion for both I and Q streams. An analog MUX selects the appropriate I and the Q baseband analog input...
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7595824 |
Signal processor, data processor, and solid state image sensor
Random pollution of output signals with logic noise caused by video signal processing is prevented and a high quality image video signal with reduced random noise is output. A signal processor...
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7592942 |
Circuit and method for A/D conversion processing and demodulation device
An A/D conversion processing circuit includes: a switch sequentially switching over multiple inputs to select each thereof according to input bandwidth of the multiple inputs or fixedly selecting a...
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7592941 |
Signal processing apparatus and signal processing method
Disclosed herein is a signal processing apparatus including: analog-to-digital conversion means for performing delta sigma modulation of generating a digital signal having a predetermined sampling...
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7592939 |
Digital domain to pulse domain time encoder
A system and method for making a digital encoder. The digital encoder has a digital-to-analog converter having multiple inputs and an output. The encoder also has an integrator having an input and...
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7592932 |
Method and device for interpolating or decimating a signal
A method and a device for interpolating or decimating a signal is provided, the signal being processed by a plurality of signal processing means connected in series, which at least comprise means...
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7589795 |
Automatic clamping analog-to-digital converter
An automatic clamping analog-to-digital converter (A/D converter) is provided, which includes an A/D converter, a switch, a comparator, a bidirectional counter, and a digital-to-analog converter...
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7589659 |
Successive approximation analog to digital converter
A successive approximation analog to digital converter comprising a plurality of capacitors which during a successive approximation conversion are selectively connectable to a first reference or a...
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7589658 |
Analog-to-digital converter with variable gain and method thereof
An analog-to-digital converter (ADC) device includes an input terminal to receive an analog signal, an analog component, and control logic. The analog component includes an amplifier having an...
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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...
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7589656 |
Crankshaft-synchronous detection of analog signals
Synchronization of the angle position of the crankshaft of a motor vehicle with the internal clock of a engine control device is often imprecise and complicated and is often fraught with...
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7589651 |
Flexible signal detect for programmable logic device serial interface
A serial interface for a programmable logic device (PLD) uses an analog-to-digital converter (ADC) in place of conventional signal detect and receiver detect circuitry. A separate ADC can be used...
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7589649 |
Apparatus, method, and system for correction of baseline wander
Apparatuses, methods, and systems for compensating baseline offset in a read channel of an analog storage device. The apparatus generally includes an AC-coupling circuit configured to transfer an...
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7586432 |
A/D converter
An A/D converter compares one or more analog voltages to be converted with a reference voltage given by a voltage change value of ramp voltage whose voltage value changes monotonically for a...
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7586430 |
Integrated circuit comprising a mixed signal single-wire interface and method for operating the same
The invention relates to an integrated circuit ( 1 ) which comprises a novel bidirectional mixed signal single-wire interface ( 6 ) via which the circuit receives command information from a host...
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