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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
8712709 Delta-sigma AD converter circuit and battery pack Apr. 29, 2014
8711020 Analogue-to-digital converter Apr. 29, 2014
8711013 Coding circuitry for difference-based data transformation Apr. 29, 2014
8704690 Method and system for minimizing the accumulated offset error for an analog to digital converter Apr. 22, 2014
8692700 Sigma-delta digital-to-analog converter Apr. 8, 2014
8681030 Resonator schemes in RF continuous-time bandpass delta-sigma modulators Mar. 25, 2014
8681029 Chopper-stabilization method and apparatus for sigma delta modulators Mar. 25, 2014
8674864 Integrator and oversampling A/D converter having the same Mar. 18, 2014
8665129 Complex second-order integrator and oversampling A/D converter having the same Mar. 4, 2014
8665128 Sigma-delta difference-of-squares log-RMS to DC converter with forward path multiplier and chopper stabilization Mar. 4, 2014
8665127 .SIGMA.-.DELTA. difference-of-squares RMS to DC converter with multiple feedback paths Mar. 4, 2014
8659455 System and method for operating an analog to digital converter Feb. 25, 2014
8653997 Modulator Feb. 18, 2014
8653996 Stability correction for a shuffler of a .SIGMA.-delta ADC Feb. 18, 2014
8643529 SAR assisted pipelined ADC and method for operating the same Feb. 4, 2014
8643528 Analog-to-digital converter Feb. 4, 2014
8643524 Feed-forward analog-to-digital converter (ADC) with a reduced number of amplifiers and feed-forward signal paths Feb. 4, 2014
8643518 Calibration of time constants in a continuous-time delta-sigma converter Feb. 4, 2014
8638251 Delay compensation for sigma delta modulator Jan. 28, 2014
8638250 Amplifier, fully-differential amplifier and delta-sigma modulator Jan. 28, 2014
8634500 Direct feedback equalization with dynamic referencing Jan. 21, 2014
8633843 System and method for chopping oversampled data converters Jan. 21, 2014
8633842 Methods and apparatus for direct synthesis of RF signals using delta-sigma modulator Jan. 21, 2014
8629795 Micro-electro-mechanical systems (MEMS), systems, and operating methods thereof Jan. 14, 2014
8629793 Continuous-time delta-sigma ADC with compact structure Jan. 14, 2014
8625726 Low power radio frequency to digital receiver Jan. 7, 2014
8624767 Electronic device and method for analog to digital conversion according to delta-sigma modulation using double sampling Jan. 7, 2014
8619882 Data modulation circuit Dec. 31, 2013
8619840 Apparatus and methods for sampling rate conversion for wireless transceivers Dec. 31, 2013
8618967 Systems, circuits, and methods for a sigma-delta based time to digital converter Dec. 31, 2013
8614635 Method for correcting amplitude and phase offsets in a sigma-delta modulator and sigma-delta modulator implementing said method Dec. 24, 2013
8611551 Low latency active noise cancellation system Dec. 17, 2013
8610611 Analog-to-digital converter for biomedical signals Dec. 17, 2013
8610610 System for calibrating a time constant of an integrated circuit, and integrated circuit provided with such a system Dec. 17, 2013
8604957 Sampling/quantization converters Dec. 10, 2013
8604956 Resonator and oversampling A/D converter Dec. 10, 2013
8604955 Filter, and transmitter and receiver having the same Dec. 10, 2013
8599055 Digital-to-analog converter Dec. 3, 2013
8599054 Method for using a sensor system having a single-bit quantizer and a multi-bit feedback loop Dec. 3, 2013
8599053 Switched-capacitance gain amplifier with improved input impedance Dec. 3, 2013
8593323 A/D conversion device Nov. 26, 2013
8593319 Image sensors and image processing systems Nov. 26, 2013
8593318 Continuous time .DELTA..SIGMA. analog-to-digital converter with a mitigation bit shifting multiplex array Nov. 26, 2013
8593316 Combined digital output system Nov. 26, 2013
8587698 Image sensor and method for operating the same Nov. 19, 2013
8587463 Signal statistics and compression-based analog-to-digital converters Nov. 19, 2013
8581768 Linear to discrete quantization conversion with reduced sampling variation errors Nov. 12, 2013
8581767 Correction signal generator and analog-to-digital converter Nov. 12, 2013
8581764 Delta-sigma modulator and signal processing system Nov. 12, 2013
8581763 Delta-sigma modulator and signal processing system Nov. 12, 2013











 
 
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