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Class 341/159 - Parallel type


Subclass of Class 341 - Coded data generation or conversion
Definition: Subject matter where an analog value is simultaneously compared
No. of applications: 52
Last issue date: 02/23/2012


1    
Application No.Application TitleIssue Date
20120044103PARALLEL INTERPOLATION A/D CONVERTER AND DIGITAL EQUALIZER
A parallel interpolation A/D converter includes a reference voltage generation circuit configured to generate (m+1) different reference voltages VR1-VRm+1, where m is a positive integer, and VR1<VR2, . . . , <VRm
02/23/2012
20110291868Method for detecting errors of an A/D converter
A method for detecting errors of an A/D converter which is designed for converting an analog input signal into a digital output signal. The digital output signal represents a number z which results from an input value of the analog input signal when an A/D conversion is...
12/01/2011
20110285569A/D Converter with Compressed Full-Scale Range
An embodiment of an analog-to-digital converter system is described wherein an analog voltage signal Vin(t) is provided by an input amplifier. The analog signal Vin(t) has a predetermined full-scale range that is less wide than a reference voltage (Vref) range used by a...
11/24/2011
20110248876ANALOG-TO-DIGITAL CONVERTER
A parallel successive-approximation analog-to-digital converter (PSA-ADC, 10) comprises a reference-voltage generation unit and a plurality of sub ADCs, (ADC-1, . . . , ADC-M) arranged for successive-approximation operation in a time-interleaved manner. Ea...
10/13/2011
20110181454FOLDING ANALOG-TO-DIGITAL CONVERTER
A folding analog-to-digital converter (ADC) is disclosed. The folding ADC includes a reference voltage generating unit generating a plurality of reference voltages, a low power analog pre-processing unit including a plurality of folders, each of which compares a voltage...
07/28/2011
20110115662High Speed Low Voltage Flash
An analog-to-digital converter comprising: first and second sets of ordered nodes, each first node having a corresponding second node; for each first node, a respective first resistor and current source pair, the resistor of each pair being connected to a first converte...
05/19/2011
20110018752FLASH A/D CONVERTER, FLASH A/D CONVERSION MODULE, AND DELTA-SIGMA A/D CONVERTER
In a flash A/D converter, a predictor predicts next analog input data based on a digital output signal from an A/D converter, and outputs prediction data. Based on the prediction data from the predictor, a controller turns on comparators having reference voltages near t...
01/27/2011
20110012765COMPARATOR FOR A PIPELINED ANALOG-TO-DIGITAL CONVERTER AND RELATED SIGNAL SAMPLING METHOD
A comparator for a pipelined ADC includes a sampling circuit coupled to a plurality of differential input voltages and a plurality of differential reference voltages, for sampling the plurality of differential input voltages according to a first clock signal and samplin...
01/20/2011
20110012771FLASH ANALOG-TO-DIGITAL CONVERTER
An analog-to-digital converter comprises a signal input (6) for receiving an analog input signal and a set of comparators (4). Each comparator (4) has a first input (21) connected to the signal input (6) and a second input (22) ...
01/20/2011
20110001039A/D CONVERTER CIRCUIT AND SOLID-STATE IMAGING DEVICE
Provided are a solid-state imaging device and A/D converter circuit comprising: series-connected capacitative elements; a voltage comparator circuit comparing the output of the capacitative element C1 with a threshold voltage; a first input circuit inputting an a...
01/06/2011
20100328120Comparator 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 (asynchronous) hierarchical binary tree of comparators, each arranged for being...
12/30/2010
20100328129PIPELINE ANALOG-TO-DIGITAL CONVERTER WITH PROGRAMMABLE GAIN FUNCTION
A pipeline analog-to-digital converter (ADC) comprises a plurality of pipeline stages is disclosed. The first pipeline stage has programmable gain function. The first pipeline stage includes a sub-analog-to-digital converter (sub-ADC) and a multiplying digital-to-analog...
12/30/2010
20100321547A/D CONVERSION APPARATUS, SOLID-STATE IMAGE CAPTURING APPARATUS AND ELECTRONIC INFORMATION DEVICE
An A/D conversion apparatus according to the present invention for comparing a reference signal with an analog signal, and when the reference signal matches with the analog signal, outputting a corresponding digital value, is provided, and the A/D conversion apparatus i...
12/23/2010
20100271249INTERPOLATING A/D CONVERTER
Provided is an interpolating A/D converter including a reference voltage generation circuit, an analog signal input circuit, a preamplifier group including a plurality of preamplifiers, and an interpolation circuit including a plurality of resistors. Reference voltages ...
10/28/2010
20100265115AD converter
Disclosed herein is an AD converter, including, a reference voltage generator, a plurality of amplifiers, a plurality of averaging resistance elements, and a plurality of first averaging auxiliary circuits each including a first amplifier and a first resistance element....
10/21/2010
20100194620ANALOG/DIGITAL CONVERTER
An A/D converter includes a plurality of comparators that performs sampling of a plurality of reference voltages and analog input signals during a sampling time, and compares each of the plurality of reference voltages with each of the plurality of analog signals during...
08/05/2010
20100194619ADC WITH LOW-POWER SAMPLING
An apparatus for analog-to-digital conversion using successive approximation is provided, which is adapted to be supplied with a single ended supply voltage. The device includes: a first analog-to-digital conversion stage including a first set of capacitors coupled with...
08/05/2010
20100194618ANALOG-TO-DIGITAL CONVERTER, OPTICAL DISK REPRODUCTION DEVICE, AND RECEIVER DEVICE
A plurality of comparators (CMP1, CMP2, . . . ) respectively correspond to a plurality of reference voltages (V1, V2, . . . ), and each compares a reference voltage corresponding to the comparator-with a signal level of an analog signal (Sin)...
08/05/2010
20100182185ANALOG-TO-DIGITAL CONVERSION CIRCUIT
An analog-to-digital conversion circuit includes a plurality of comparators and an averaging circuit. The averaging circuit is configured so that a length of a metal routing connected between output terminals of two comparators arranged on a leftmost side from among the...
07/22/2010
20100176983ANALOG-TO-DIGITAL CONVERTER CIRCUIT
An analog-to-digital converter circuit includes: a capacitor array including a plurality of first capacitors, each having a first terminal connecting to a common node and having a capacitance represented by the nth power of 2 (2n) on the basis of the smallest...
07/15/2010
20100134337ANALOG-DIGITAL CONVERSION CELL AND ANALOG-DIGITAL CONVERTER
There is provided an analog-digital conversion cell being an analog-digital conversion cell that performs an N-bit analog-digital conversion (where N is a natural number) and including: a comparison circuit (202) comparing an analog input signal VI based on a plu...
06/03/2010
20100127911ANALOG 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 voltage selectors; a sampling unit grounded at one end thereof; a plurali...
05/27/2010
20100117879A/D CONVERTER AND A/D CONVERSION METHOD
An A/D converter which converts an analog input signal into a digital output signal by performing time-divisional parallel processings on the analog input signal using first and second pipeline type unit A/D converters (121,122), has a function of setting plural ...
05/13/2010
20100097260ANALOG-TO-DIGITAL CONVERTER
An analog-to-digital converter includes a first preamplifier receiving a first reference voltage and an input signal, a second preamplifier receiving a second reference voltage and the input signal, a first preamplifier calibrator placed for the first preamplifier and a...
04/22/2010
20100085232PARALLEL ANALOG-DIGITAL CONVERTER WITH DUAL STATIC LADDER
The invention relates to fast, high resolution, analog digital converters, and more particularly those which possess at least one conversion stage of “flash” type. The converter according to the invention uses N differential amplifiers with four inputs. The amplifie...
04/08/2010
20100060502A/D CONVERTER
There is provided an A/D converter capable of changing specification and function of the A/D converter with the use of a programmable circuit by combining comparators with the programmable circuit. The A/D converter comprises a parallel-connected comparison circuit incl...
03/11/2010
20100060501RAIL TO RAIL FLASH
An analogue to digital converter comprising: a first set comprising nodes defined by circuitry such that each node is at a respective voltage, the voltages on the nodes being in an orderly progression between the voltage of a first current source and the voltage of a fi...
03/11/2010
20100013684AD 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 accuracy of AD conversion processing. An AD converter according to the pr...
01/21/2010
20100007542PIPELINED TYPE A/D CONVERTER
The present invention aims to provide a pipeline type A/D converter capable of realizing low power consumption while preventing a reduction in feedback factor of an amplifier. One embodiment of the present invention is of a pipeline type A/D converter which converts an ...
01/14/2010
20090309777ANALOG SIGNAL PROCESSING DEVICE
An analog signal processing device including a voltage selector selecting a given comparison reference voltage from plural comparison reference voltages, an arithmetic unit arithmetically processing the given comparison reference voltage and an analog input signal, a co...
12/17/2009
20090273502Fast, efficient reference networks for providing low-impedance reference signals to signal converter systems
Reference network embodiments are provided for use in pipelined signal converter systems. The network embodiments are fast and power efficient and they generate low-impedance reference signals through the use of a complimentary common-drain output stage, an output curre...
11/05/2009
20090267821Analog-to-Digital Converter
An ADC circuit includes multiple comparators and a controller coupled to the comparators. Each of the comparators is operative to generate an output indicative of a difference between a first signal representative of an input signal applied to the ADC circuit and a corr...
10/29/2009
20090237286FLASH ADC
An analog to digital converter (ADC) includes a resistance ladder including N resistances arranged in series. Connection nodes are arranged between adjacent ones of the N resistances and at each end of the resistance ladder. An input signal is received at a selected con...
09/24/2009
20090207065ANALOG TO DIGITAL CONVERTER USING SUCCESSIVE APPROXIMATION
Disclosed is a flash analog to digital converter (ADC) capable of reducing area requirements and using successive approximation. The ADC includes a reference voltage generating unit receiving an external voltage and outputting M reference voltages. A reference voltage s...
08/20/2009
20090153387ANALOG/DIGITAL CONVERTER AND INFORMATION RECORDING AND REPRODUCING APPARATUS
The present invention provides an A/D converter includes: a plurality of comparators for comparing a plurality of respective standard voltages with an analog input value for a magnitude thereof, the comparators being arranged depending on magnitudes of the standard volt...
06/18/2009
20090153386FLASH CONVERTER DIFFERENTIAL REFERENCE LADDER AUTO-ZERO CIRCUIT
A differential reference ladder with an auto zero circuit that can be used as part of a flash analog to digital converter. The auto zero operation is performed relative to a common mode voltage of the ladder. The resistive ladder is disconnected from the rest of the cir...
06/18/2009
20090146859FLASH CONVERTER DIFFERENTIAL REFERENCE LADDER ADJUSTMENT WITH STABLE COMMON MODE VOLTAGE
An adjustment circuit for use with a resistive reference ladder that establishes nominal reference steps and a common mode voltage for a plurality of comparators, such as used in a flash converter. An “H” arrangement of current sources injects current at a first nod...
06/11/2009
20090109073PIPELINED ANALOG TO DIGITAL CONVERTER WITHOUT INPUT SAMPLE/HOLD
The first stage of a plurality of stages in a pipelined analog to digital converter couples its input analog signal to both a first and second sample and hold (S/H). The first S/H output is coupled to the input of a multiplying digital to analog converter (MDAC) of the ...
04/30/2009
20090073020Parallel type analog-to-digital conversion circuit, sampling circuit and comparison amplification circuit
A parallel type analog-to-digital conversion circuit, including a reference signal generating portion and a comparison amplification portion, the comparison amplification portion including a plurality of amplifiers, input resetting switches, first sampling capacitors, s...
03/19/2009
20080309541Flash 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 the analog input signal with the reference voltages. A set of switches are...
12/18/2008
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