|
Match
|
Document |
Document Title |
|
|
7609195 |
On die thermal sensor and method for generating thermal code of ODTS
An on die thermal sensor (ODTS) in a memory device includes: a band gap unit for detecting a temperature of the memory device to output a first voltage corresponding to the temperature; and an...
|
|
|
7586428 |
Non-linear processing of signals
In a non-linear processing system, the main non-linear processing and filtering is performed with low precision in a separate branch. A low-precision version ( 22 ) of the input signal ( 14 ) is...
|
|
|
7576674 |
Digital-to-analog converter circuit, data driver, and display device using the digital-to-analog converter circuit
Disclosed is a data driver including a reference voltage generation circuit that generates and outputs a plurality of reference voltages, a decoder circuit that selects from among the reference...
|
|
|
7576669 |
Method and apparatus for calibrating analog-to-digital converters within an imaging device
A method of operating an imaging device, an imaging device, a camera system including an imaging device, and a processing system including an imaging device for calibrating an analog-to-digital...
|
|
|
7570185 |
Data acquisition system for medical imaging
A system and a method for converting an analog signal to a digital signal are provided. The technique involves receiving a sampled analog signal, and selecting one of a plurality of segments of a...
|
|
|
7432838 |
Method and apparatus for reduced power consumption ADC conversion
A method for conversion of signals between analog and digital characterised by; applying a non-linear transfer function to an input signal, such that the relation between the quantisation levels of...
|
|
|
7432839 |
ADC with logarithmic response and methods for controlling RF power levels
Embodiments of an analog-to-digital converter (ADC) and methods for controlling RF power levels are generally described herein. Other embodiments may be described and claimed. In some embodiments,...
|
|
|
7397403 |
Range compression in oversampling analog-to-digital converters using differential input signals
An analog-to-digital converter according to the invention is provided. The analog-to-digital converter preferably includes an analog input signal, a first reference signal, a second reference...
|
|
|
7397404 |
Digital linearizing system
A signal processing system includes a receiving terminal configured to receive a digital signal comprising a plurality of samples associated with a plurality of original sampling times, wherein the...
|
|
|
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...
|
|
|
7369074 |
D/A converter for a digital signal after non-linear A/D conversion, audio signal processing circuit and liquid crystal display device including the same
A D/A converter inputted with non-linear conversion digital data such as a digital signal encoded according to a μ-Law system or the like as it is to convert into an analog signal. A D/A converter...
|
|
|
7333040 |
Flash ADC with sparse codes matched to input noise
An analog-to-digital converter (ADC) architecture to implement a non-linear flash ADC. The apparatus includes a non-linear resistor, a non-linear comparator, and an inverse non-linear encoder. The...
|
|
|
7250884 |
Analog-to-digital converters for control loop applications
An analog-to-digital converter error detector suitable for single-chip control loop applications employs a single comparator determining the difference between an initial input voltage and a...
|
|
|
7239257 |
Hardware efficient digital control loop architecture for a power converter
A power converter including a hardware efficient control loop architecture. Error detection circuitry may generate an error signal based on the difference between a power converter output voltage...
|
|
|
7212592 |
Digitally programmable gain control circuit
A digitally programmable gain control circuit and method of operating the same is disclosed. The gain control circuit includes a programmable gain amplifier having an amplifier structure...
|
|
|
7158061 |
A/D converter for wideband digital communication
Circuitry for providing non-uniform analog-to-digital (“A/D”) signal conversion for wideband signals is provided. The circuitry of the invention is optimized for wideband signals because it...
|
|
|
7154424 |
Digital equalization apparatus
A digital equalization apparatus is provided with an analog low pass filter for removing a high-frequency component from an input analog signal, a non-linear analog to digital (A/D) converter for...
|
|
|
7135999 |
Circuit arrangement for compensation for nonlinearities from analog/digital converters operating with different timing
A circuit arrangement ( 10 ) for compensating for nonlinearities (NL 1 , NL 2 ) from analog/digital converters ( 15, 16 ) operating with different timing, having at least two analog/digital...
|
|
|
7132966 |
Floating point IDAC
Circuits and methods to convert a digital floating-point number into an analog current have been achieved. The conversion is performed directly by using an exponential current digital-to-analog...
|
|
|
7088779 |
Method and apparatus for reducing the word length of a digital input signal and method and apparatus for recovering a digital input signal
A method and signal processing apparatus for reducing the number of bits of a digital input signal (M i ), includes adding a pseudo-random noise signal (N a ) to the digital input signal (M i ) to...
|
|
|
7062159 |
Device for correcting a digital estimate of an electric signal
A device for correcting a digital estimate of an electric signal is described. The device includes a comparator that generates a current proportional to the difference between an analog estimate...
|
|
|
7053806 |
System and method for calibration of autoranging architectures
A method for calibrating a segmented analog to digital signal conversion system is provided. The method includes segmenting a desired relationship between DAC output values and desired ADC input...
|
|
|
7023927 |
Constellation design for PCM upstream modulation
A method for constellation design in a telecommunications network using pulse code modulation to transmit data signals upstream between client and server voice-band modems. The invention selects a...
|
|
|
6999013 |
Built-in real-time digital non-linearity measurement device and method for analog to digital converters
A nonlinearity detection system for an analog to digital converter (ADC) comprises a signal generator that generates a periodic signal that is output to the ADC and that comprises first and second...
|
|
|
6999014 |
Incremental-delta analogue-to-digital conversion
A method of, and a converter for, converting an analogue input signal (X) to a digital output signal (Y) by incremental-delta conversion in which, at clock intervals, a non-uniform quantizer ( 7 )...
|
|
|
6900751 |
Logarithmic digital to analog converter having multipliers coupled to reference voltages
An analog multiplier 11 raises a base reference voltage “Vref 0 ” to the nth power so that a reference voltage “Vref 1 ” is produced. Analog multipliers 12 and 13 sequentially raise...
|
|
|
6674380 |
Digital-phase to digital amplitude translator with first bit off priority coded output for input to unit weighed digital to analog converter
Differential heating is avoided by a digital to analog converter for generating analog cyclical waveforms having a period. The cyclical waveforms are generated by conversion of a sequence of step...
|
|
|
6633247 |
Logarithmic a/d converter, method of logarithmic a/d conversion logarithmic d/a converter, method of logarithmic d/a conversion, and system for measuring physical quantity
An analog multiplier 11 raises a base reference voltage “Vref 0 ” to the nth power so that a reference voltage “Vref 1 ” is produced. Analog multipliers 12 and 13 sequentially raise...
|
|
|
6608579 |
Digital-to-analog converting circuit giving linear relation between digital code and oscillation frequency of oscillator
A digital-to-analog converting circuit of the invention includes p-channel FETs 13 to 16 that compose a current mirror circuit together with p-channel FETs 11, 22 to 24 causing a constant...
|
|
|
6535152 |
Analog-to-digital converter having gamma-corrected reference voltages
An analog-to-digital converter with a gamma correction function includes a gamma correction unit for generating a plurality of reference voltages corrected according to a gamma function and a...
|
|
|
6529149 |
Digital self-calibration of a digital-to-analog converter
A digital-to-analog converter containing one or more ideal stages, a reduced-radix stage coupled with the one or more ideal stages, and a digital calibration logic section to operate on a...
|
|
|
6525683 |
Nonlinearly converting a signal to compensate for non-uniformities and degradations in a display
A digital signal directed to a display (e.g., a plurality of display elements forming an array of display elements) may be converted into an analog signal using a nonlinear relationship. In one...
|
|
|
6501404 |
System and method for encoding an input data stream by utilizing a predictive, look-ahead feature
A method compares an input value of the input signal stream with an output value of an integration function of a previous binary value to generate a new binary value based upon the comparison. The...
|
|
|
6498577 |
Piecewise-linear, non-uniform ADC
A non-uniform analog-to-digital converter (ADC) produces digital output data representing the magnitude of an analog input signal having a non-uniform magnitude probability distribution. The...
|
|
|
6483450 |
Method and device for digital-to-analog conversion of a signal
A method for digital-to-analog conversion of a digital signal (x d (t i )) comprises resolving the signal (x d (t i )) in the time region into intervals and successively transforming these...
|
|
|
6480129 |
Methods and apparatus for correction of higher order delta sigma converters
A technique for correcting higher order delta sigma modulators in audio components, which use mutually nonlinear feedback and feed forward functions. Methods and apparatus are provided to correct...
|
|
|
6466148 |
D/A conversion method and D/A converter
A D/A converter includes a triangular unit weight array. A decoder transforms digital samples into control signals having a linearly weighted binary representation. These control signal are used...
|
|
|
6466149 |
Apparatus and method for digital to analog conversion
The invention includes a segmented digital-to-analog converter (DAC) processing an N-bit input digital signal. A first segment converter processes the most significant bits and subsequent segment...
|
|
|
6445319 |
Analog to digital converter circuit
An analog-to-digital converter (ADC) ( 12 ) having a nonlinear transfer function with a unique mapping. The ADC ( 12 ) is adapted to produce a digital output signal for a plurality of analog input...
|
|
|
6433718 |
D/A conversion method and apparatus
A D/A conversion system includes means for arranging a stream of digital samples into frames, each frame including a guard time period. Means are provided for determining a measure of the overall...
|
|
|
6414613 |
Apparatus for noise shaping a pulse width modulation (PWM) signal and method therefor
A method for preserving phase information during quantization of pulse width modulation (PWM) signals used in power system applications. In one embodiment, a digital audio amplifier ( 12 )...
|
|
|
6392574 |
System and method for exponential digital to analog conversion
The present invention relates to digital to analog conversion. According to an embodiment of the present invention, an exponential transfer characteristic may be produced by adding a fraction of...
|
|
|
6356221 |
Electron beam analog to digital converter including time sampling of the input signal
An electron beam analog to digital converter wherein an input signal to be quantized is applied to the deflection circuitry of an electron beam generation device where the electron beam is made to...
|
|
|
6310568 |
Digital-to-analog conversion circuit
A digital-to-analog conversion circuit includes first and second MOS transistors. The first MOS transistors have different sizes corresponding to bits in received digital data, and apply a weight...
|
|
|
6297758 |
Electrooptical scanning analog-to-digital converter
An electrooptical scanning analog-to-digital converter for converting an analog voltage signal from a source to its corresponding digital equivalent in accordance with the invention includes a...
|
|
|
6275259 |
Digital automatic gain control circuit for image system
The present invention relates to an automatic gain control circuit in which the automatic gain control function is performed entirely in the digital domain. In an illustrative embodiment, the...
|
|
|
6243033 |
Signal value representing method and system
A signal value representing method in which both wide dynamic range and high precision can be realized in combination with a low power source voltage. M+1 signal lines are used of which, M signal...
|
|
|
6208278 |
System and method for logarithmic digital to analog conversion
The present invention relates to digital to analog conversion. According to an embodiment of the present invention, a logarithmic transfer characteristic may be produced by subtracting a fraction...
|
|
|
6195029 |
Analog to digital conversion system that enables high-level signal excursions without clipping
A method and apparatus for combining analog and digital processing techniques to thereby capture a much wider dynamic range of an original input signal than an A/D converter can by itself, to...
|
|
|
6188343 |
Method and structure for providing a digitally controlled voltage gain amplifier with non-linear gain adjustments
A non-linear function of an input voltage is provided by cascading multiplying digital-to-analog converters (mDACs) to provide a polynomial power series to approximate the non-linear function....
|