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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...
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...
7595744 Correcting offset errors associated with a sub-ADC in pipeline analog to digital converters  
An offset correction circuit examines a residue signal of a stage of a pipeline analog to digital converter (ADC) to determine whether a parameter which could cause offset error, needs to be...
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...
7579974 Digitizer for a digital receiver system  
A digitizer for a digital receiver system includes an input terminal to receive a modulated analog input voltage signal, and an output terminal to provide an output voltage signal being a digital...
7579973 Analog-to-digital converter  
An analog-digital (A-D) converter for outputting a digital signal corresponding to an analog input signal includes: an upper bit A-D converting section for conducting A-D conversion of the analog...
7576678 Successive approximation analog/digital converter and associated integrated component and conversion method  
A successive approximation analog/digital converter is provided, which includes a successive approximation register supplying a digital/analog converter, first means of comparing an input signal of...
7573415 Area and power efficient analog to digital converter and methods for using such  
Various different approaches are provided for conversion of analog signals to digital signals. For example, various analog to digital converter circuits capable of converting an input voltage to a...
7573413 Electronic circuit protecting against the effect of injection current and analog to digital conversion circuit  
An electronic circuit includes a transmission circuit transmitting an input signal of a first node as an output signal of a second node in response to a control signal and a discharge circuit...
7567280 Solid-state imaging device, analogue-digital converting method in solid-state imaging device and imaging apparatus  
The present invention provides a solid-state imaging device including: a pixel array block; a row scanning device; and an analogue-digital conversion device, the analogue-digital conversion device...
7564395 Subranging converter for converting an analog signal into an N-bit digital signal  
A subranging analog-to-digital converter is disclosed. The converter includes: a divided voltage generation circuit that equally divides a range of a predetermined voltage, and generates 2 m +1...
7554476 Ad conversion method, apparatus thereof, solid-state imaging device, driving method thereof, and imaging apparatus  
An analog-to-digital conversion method includes the steps of outputting an upper-bit conversion reference signal, obtaining a digital value of upper bits on the basis of a period of time from a set...
7535399 Reference voltage shifting technique for optimizing SNR performance in pipeline ADCs with respect to input signal  
An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a plurality of digital intermediate signals in response to an analog input signal, a...
7535390 Time-interleaved analog-to-digital converter and self-calibration method thereof  
The present invention discloses a time-interleaved analog-to-digital converter (ADC), which includes a first and a second sub-ADC and a calibration module. The calibration module includes a switch...
7532144 AD converter and radio receiver  
Disclosed is an AD converter including: a first conversion stage including a quantizing part to generate m parallel pieces of quantized signals from m pieces of input analog signals representing...
7528756 Analog-to-digital converter system with increased sampling frequency  
An improvement in sampling a high frequency input analog signal and converting it to a digital output signal is accomplished by using a multitude of analog-to-digital converters in conjunction with...
7528753 Codec simultaneously processing multiple analog signals with only one analog-to-digital converter and method thereof  
A coder-decoder simultaneously processing a plurality of first analog signals with only one analog-to-digital converter is provided. In an exemplary embodiment, the coder-decoder comprises a...
7528751 Systems, methods, and apparatuses for a long delay generation technique for spectrum-sensing of cognitive radios  
Embodiments of the invention may provide for a long delay generator for the spectrum sensing of cognitive radio systems. The long delay generator may include an Analog-to-Digital Converter (ADC),...
7525470 Phase control for interleaved analog-to-digital conversion for electronic dispersion compensation  
Embodiments include a system for performing dispersion compensation on an electromagnetic signal received over a communication channel, the electromagnetic signal bearing information at a symbol...
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...
7515083 Analog-to-digital converting system  
A novel analog-to-digital converter (ADC) architecture using subranging successive approximation approach is disclosed. The ADC architecture is capable of achieving high sampling rate, low power...
7504977 Hybrid delta-sigma/SAR analog to digital converter and methods for using such  
Various systems and methods for capturing data are disclosed. For example, some embodiments of the present invention provide methods for performing a first analog to digital conversion using a...
7492302 Analog-to-digital converter with reduced metastable errors  
In an analog-to-digital converter, an analog-to-digital conversion stage comprising a comparator and an analog residual signal generator. The comparator is operable to compare an analog input...
7482965 Digital chirp waveform generator and method  
A chirp waveform generator for producing a chirp waveform ƒ(t)=sin (t 2 modulus m) where modulus m is represented by n submoduli and/or factored submoduli m 1 -m n . Sequence generators generate...
7479914 A-D converter and A-D convert method  
An A-D converter includes a plurality of comparators, each of which compares an analog input signal to analog threshold values; an upper field determination section which, during an upper...
7479913 Configurable analog to digital converter  
A configurable analog to digital converter (ADC) includes a plurality of analog units to integrate an input signal. The analog units are coupled together to generate a plurality of discrete-time...
7477186 Memory systems with column read to an arithmetic operation circuit, pattern detector circuits and methods and computer program products for the same  
Memory systems include an array of storage cells arranged in a row and column arrangement. A plurality of data write lines coupled to the array are configured to supply data into a selected row of...
7477177 A-D converter, A-D convert method, and A-D convert program  
An A-D converter that outputs a digital output signal obtained by digitalizing an analog input signal includes a plurality of comparators that each compare the analog input signal and an analog...
7471229 Analog-to-digital converter with low latency output path  
An analog to digital converter system includes at least one stage for providing a first full precision, full latency output and a second output providing a less than full latency, less than full...
7460049 Power-to-digital converter  
A power-to-digital converter (PDC) converting a signal power to digital code. The PDC comprises a power detector, an analog-to-digital converter (ADC), and a timing and logic control circuit. The...
7456775 Pipeline analog-to-digital converter capable of sharing comparators  
A pipeline analog-to-digital converter including: a first conversion module, a second conversion module, at least a comparator, a first switch module and a second switch module. The first...
7443326 Digital input signals constructor providing analog representation thereof  
A digital to analog waveform converter featuring a DSP, discrete output devices, and Multi Input Multi Output (MIMO) device, wherein the MIMO device includes low accuracy components featuring high...
7429945 Analog to digital converter  
The invention relates to an analog-to-digital converter comprising a reference voltage generating circuit, two coarse/fine comparators and two encoders for encoding the comparison result of the two...
7429944 Converter systems having reduced-jitter, selectively-skewed interleaved clocks  
Converter systems are provided that use particular combinations of fixed and variable clock skewers to generate interleaved clock signals for the systems. These combinations have been found...
7411537 Digitizer arrangement  
A digitizer arrangement for converting an analogue signal into a digital signal, including a first A/D converter, said first A/D converter being arranged to convert said analogue signal into a...
7405689 Predictive analog to digital converters and methods of using  
Methods and devices perform analog to digital signal conversion in shorter time and/or with less power consumption than that of a comparable analog to digital conversion that uses a conventional...
7403149 Folding and interpolating analog-to-digital converter and method of converting analog signal to digital signal  
A folding and interpolating analog,-to-digital converter (ADC) includes a preamp unit, a first folding stage, a second folding stage, a comparison unit and an encoder. The preamp unit receives an...
7400286 Device and method for use in the verification of handwriting  
A device ( 10 ) for use in the verification of handwriting, comprising: a body ( 12 ) having a surface ( 11 ) over which a writing instrument ( 8 ) is moved during the generation of a piece of...
7397410 Input tracking high-level multibit quantizer for delta-sigma ADC  
A quantization circuit includes a plurality of resistors, a plurality of tap points, and a plurality of coarse comparators. Each coarse comparator has a first input coupled to an input voltage and...
7397409 Multi-bit pipeline analog-to-digital converter having shared amplifier structure  
A multi-bit pipeline analog-to-digital converter (ADC) having a shared amplifier structure includes: a sample-and-hold amplifier (SHA) for sampling and holding an input analog voltage and removing...
7397408 System and method for scheduling access to an analog-to-digital converter and a microprocessor  
An analog-to-digital converter (ADC) system is disclosed and includes a programmable control register and a plurality of channels, each channel having an associated request bit within the...
7394421 Fast analogue-to-digital converter  
The invention relates to fast analogue-to-digital converters having differential inputs and a parallel structure, comprising at least one network of N series resistors with value r and one network...
7391353 Analog/digital converter  
An A-D converter utilizing V-F conversion is realized that is capable of performing A-D conversion with high precision without increasing conversion frequency. Two VCOs are provided to find a V-F...
7382306 AD converter and display unit  
An AD converter includes: a reference voltage generator circuit having a plurality of resistors connected in series with predetermined reference voltage applied to both ends thereof, the reference...
7382302 A/D converter with voltage generation circuits  
An A/D converter has a first voltage generation circuit, a second voltage generation circuit, a comparator, first and second switch circuits connected in series between an input terminal of an...
7382299 Method of calibrating digital-to-analog converter input based on analog-to-digital converter output and analog encoding apparatus employing the method  
A method of calibrating an input of a digital-to-analog (D/A) converter based on an output of an analog-to-digital (A/D) converter in an analog encoding apparatus including the D/A converter and...
7379010 Extension of accuracy of a flash ADC by 1-bit through interpolation of comparator outputs  
ADC accuracy is increased by 1 bit by interpolation of comparator outputs in a comparator array, thereby increasing accuracy without significantly increasing power consumption and size....
7369079 Universal input/output module  
A universal input/output module may be tailored to enable or disable a pull-up or pull-down function such that distinct type digital signals reaching the digital signal processor may be changed...
7356588 Circuits and methods for detecting the presence of a powered device in a powered network  
Circuits and methods for detecting the presence of a powered device in a powered network connection and removing power from the powered network connection when no powered device is present are...
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