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Class Information
Number: 341/143
Name: Coded data generation or conversion > Analog to or from digital conversion > Differential encoder and/or decoder (e.g., delta modulation, differential pulse code modulation)
Description: Subject matter wherein the analog signal which is to be encoded or decoded depends on the difference between a given analog signal and the analog signal previously encoded or decoded.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7545303 |
Sigma-delta difference-of-squares RMS-to-DC converter with forward and feedback paths signal squaring |
Jun. 9, 2009 |
| 7545302 |
Sigma-delta difference-of-squares RMS-to-DC converter with forward path multiplier |
Jun. 9, 2009 |
| 7545301 |
Multi-bit delta-sigma modulator |
Jun. 9, 2009 |
| 7545300 |
Column-parallel sigma-delta analog-to-digital conversion with gain and offset control |
Jun. 9, 2009 |
| 7541964 |
Analogue/digital converter microelectronic device for equalising charges |
Jun. 2, 2009 |
| 7538706 |
Mash modulator and frequency synthesizer using the same |
May. 26, 2009 |
| 7538705 |
Offset cancellation and reduced source induced 1/f noise of voltage reference by using bit stream from over-sampling analog-to-digital converter |
May. 26, 2009 |
| 7538704 |
Direct RF D-to-A conversion |
May. 26, 2009 |
| 7538703 |
Sigma-delta modulation with minimized noise and fractional-N phase-locked loop including the same |
May. 26, 2009 |
| 7538702 |
Quantizing circuits with variable parameters |
May. 26, 2009 |
| 7538701 |
System and method for improving dynamic performance of a circuit |
May. 26, 2009 |
| 7535398 |
Correlated double-sampling circuit and cyclic analog-to-digital converter including the same |
May. 19, 2009 |
| 7535393 |
Sampling error reduction in PWM-MASH converters |
May. 19, 2009 |
| 7535392 |
Delta sigma modulator and method for compensating delta sigma modulators for loop delay |
May. 19, 2009 |
| 7532141 |
Pulse width modulation method and digital analogue converter using the same |
May. 12, 2009 |
| 7532138 |
Delta-sigma modulator and DA converter apparatus including delta-sigma modulator changing order of filter |
May. 12, 2009 |
| 7532137 |
Filter with capacitive forward coupling with a quantizer operating in scanning and conversion phases |
May. 12, 2009 |
| 7528755 |
Sigma-delta modulator for operating sensors |
May. 5, 2009 |
| 7528754 |
Finite impulse response digital to analog converter |
May. 5, 2009 |
| 7526055 |
Sigma-delta modulator and fractional-N frequency synthesizer comprising same |
Apr. 28, 2009 |
| 7526032 |
Sync signal insertion that breaks a maximum bit-run and has a particular detection distance between two or more sync patterns |
Apr. 28, 2009 |
| 7525465 |
Reconfigurable and adaptive continuous time-sigma delta data converter |
Apr. 28, 2009 |
| 7525464 |
Sigma-delta modulator with DAC resolution less than ADC resolution |
Apr. 28, 2009 |
| 7525463 |
Compression rate control system and method with variable subband processing |
Apr. 28, 2009 |
| 7522080 |
A/D converter, signal processor, and receiving device |
Apr. 21, 2009 |
| 7522079 |
Sigma-delta modulator with DAC resolution less than ADC resolution and increased tolerance of non-ideal integrators |
Apr. 21, 2009 |
| 7515080 |
A/D converter |
Apr. 7, 2009 |
| 7515079 |
Method of controlling delta-sigma modulator and delta-sigma modulator |
Apr. 7, 2009 |
| 7515078 |
Programmable sample rate analog to digital converter and method for use therewith |
Apr. 7, 2009 |
| 7511648 |
Integrating/SAR ADC and method with low integrator swing and low complexity |
Mar. 31, 2009 |
| 7511647 |
Dynamic element matching method and device |
Mar. 31, 2009 |
| 7508333 |
Method and apparatus to quantize and dequantize input signal, and method and apparatus to encode and decode input signal |
Mar. 24, 2009 |
| 7508331 |
Digital-to-analog converter with dynamic element matching to minimize mismatch error |
Mar. 24, 2009 |
| 7508330 |
Apparatus and method for improving performance of sigma-delta modulators having non-ideal components |
Mar. 24, 2009 |
| 7504977 |
Hybrid delta-sigma/SAR analog to digital converter and methods for using such |
Mar. 17, 2009 |
| 7504976 |
Direct radio frequency generation using power digital-to-analog conversion |
Mar. 17, 2009 |
| 7501969 |
Method and apparatus for an image canceling digital-to-analog converter (DAC) |
Mar. 10, 2009 |
| 7501968 |
Integrated multi-mode sensor |
Mar. 10, 2009 |
| 7495595 |
Analog-to-digital converter, receiver arrangement, filter arrangement and signal processing method |
Feb. 24, 2009 |
| 7495593 |
Sigma-delta modulator capable of compensating a time delay |
Feb. 24, 2009 |
| 7492296 |
Discrete-time programmable-gain analog-to-digital converter (ADC) input circuit with input signal and common-mode current nulling |
Feb. 17, 2009 |
| 7492289 |
Signal processing method and device |
Feb. 17, 2009 |
| 7489791 |
A/D converter with integrated biasing for a microphone |
Feb. 10, 2009 |
| 7486217 |
A/D converter |
Feb. 3, 2009 |
| 7486215 |
Apparatus, method, and circuit for baseline loop analog cancellation |
Feb. 3, 2009 |
| 7486214 |
Tuning methods for loop-filters of continuous-time sigma-delta modulators |
Feb. 3, 2009 |
| 7486213 |
Method and system for increasing resolution and accuracy of an analog to digital converter |
Feb. 3, 2009 |
| 7483067 |
Column-parallel sigma-delta analog-to-digital conversion for imagers |
Jan. 27, 2009 |
| 7482953 |
Sample selector time domain interpolation |
Jan. 27, 2009 |
| 7479911 |
Multiple input multiple output analog-to-digital converter |
Jan. 20, 2009 |
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