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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 |
| 6924756 |
Method and system for processing a digital signal |
Aug. 2, 2005 |
| 6924757 |
Sigma-delta modulator with reduced switching rate for use in class-D amplification |
Aug. 2, 2005 |
| 6924759 |
Multi-channel integrated circuit comprising a plurality of DACs, and a method for monitoring the output of the DACs |
Aug. 2, 2005 |
| 6925372 |
Control apparatus, control method, and engine control unit |
Aug. 2, 2005 |
| 6922161 |
Delta-Sigma modulator for reducing quantization noise and oversampling ratio (OSR) |
Jul. 26, 2005 |
| 6919699 |
Motor control apparatus |
Jul. 19, 2005 |
| 6919832 |
Methods and systems for high speed quantizers |
Jul. 19, 2005 |
| 6920182 |
Delta-sigma modulator system and method |
Jul. 19, 2005 |
| 6917317 |
Signal processing device, signal processing method, delta-sigma modulation type fractional division PLL frequency synthesizer, radio communication device, delta-sigma modulation type D/A conve |
Jul. 12, 2005 |
| 6917320 |
Method and device for use in DC parametric tests |
Jul. 12, 2005 |
| 6917324 |
Signal processor and apparatus and method for testing same |
Jul. 12, 2005 |
| 6914546 |
Device and method of digital gain programming using sigma-delta modulator |
Jul. 5, 2005 |
| 6914549 |
Reconfigurable analog-to-digital converter |
Jul. 5, 2005 |
| 6911927 |
Over-sampling digital-to-analog converter with variable sampling frequencies |
Jun. 28, 2005 |
| 6911928 |
Bandpass sigma-delta modulator and uses of the sigma delta modulator for conversion, detection and production of signals |
Jun. 28, 2005 |
| 6909388 |
Fractal sequencing schemes for offset cancellation in sampled data acquisition systems |
Jun. 21, 2005 |
| 6909390 |
Digital-to-analog converter switching circuitry |
Jun. 21, 2005 |
| 6903672 |
Apparatus for and method of performing an analog to digital conversion |
Jun. 7, 2005 |
| 6900750 |
Signal conditioning system with adjustable gain and offset mismatches |
May. 31, 2005 |
| 6897795 |
Audio digital to analog converter with harmonic suppression |
May. 24, 2005 |
| 6897796 |
Sigma-delta converter arrangement |
May. 24, 2005 |
| 6894632 |
Programmable analog-to-digital converter |
May. 17, 2005 |
| 6891488 |
Sigma-delta conversion with analog, nonvolatile trimmed quantized feedback |
May. 10, 2005 |
| 6888484 |
Stable high-order delta-sigma error feedback modulators, and noise transfer functions for use in such modulators |
May. 3, 2005 |
| 6885326 |
Accumulator for adaptive .SIGMA.-.DELTA. modulation |
Apr. 26, 2005 |
| 6885327 |
Adaptive sigma-delta modulation |
Apr. 26, 2005 |
| 6880262 |
Continuous time .DELTA..SIGMA. ADC with dithering |
Apr. 19, 2005 |
| 6879273 |
Oversampling in analog/digital and digital/analog converters |
Apr. 12, 2005 |
| 6879275 |
Signal processing with a look-ahead modulator having time weighted error values |
Apr. 12, 2005 |
| 6876319 |
Integrated modulator and demodulator configuration |
Apr. 5, 2005 |
| 6876698 |
Tunable narrow-band filter including sigma-delta modulator |
Apr. 5, 2005 |
| 6873274 |
Digital-to-analog converter with sampling frequency detector |
Mar. 29, 2005 |
| 6873275 |
Digital signal conversion apparatus, digital signal conversion method, and computer-readable recording medium in which digital signal conversion program is recorded |
Mar. 29, 2005 |
| 6873276 |
Delta-sigma modulators with improved noise performance |
Mar. 29, 2005 |
| 6873277 |
Multi-phase measurement system with synchronized sigma delta converters |
Mar. 29, 2005 |
| 6873280 |
Conversion employing delta-sigma modulation |
Mar. 29, 2005 |
| 6873281 |
Interleaved digital correction for MASH delta-sigma ADC |
Mar. 29, 2005 |
| 6869216 |
Digitizing temperature measurement system |
Mar. 22, 2005 |
| 6870494 |
System of multi-channel shared resistor-string digital-to-analog converters and method of the same |
Mar. 22, 2005 |
| 6867720 |
Beamformed ultrasonic imager with delta-sigma feedback control |
Mar. 15, 2005 |
| 6864815 |
Method and apparatus for efficient mixed signal processing in a digital amplifier |
Mar. 8, 2005 |
| 6864818 |
Programmable bandpass analog to digital converter based on error feedback architecture |
Mar. 8, 2005 |
| 6864819 |
State delayed technique and system to remove tones of dynamic element matching |
Mar. 8, 2005 |
| 6864822 |
Reconfigurable analog-to-digital converter |
Mar. 8, 2005 |
| 6865230 |
Filter system with reduced switch thermal noise and a .SIGMA..DELTA. modulator using such a filter |
Mar. 8, 2005 |
| 6861968 |
Signal processing system with baseband noise modulation and noise filtering |
Mar. 1, 2005 |
| 6859159 |
Switched-capacitor structures with enhanced isolation |
Feb. 22, 2005 |
| 6856266 |
Multi-rate analog-to-digital converter |
Feb. 15, 2005 |
| 6856267 |
Method and system for a multi-rate analog finite impulse response filter |
Feb. 15, 2005 |
| 6856268 |
CONTROL SYSTEMS HAVING AN ANALOG CONTROL UNIT THAT GENERATES AN ANALOG VALUE RESPONSIVE TO A DIGITAL VALUE AND HAVING TWICE THE RESOLUTION OF THE LEAST SIGNIFICANT BIT OF THE DIGITAL VALUE AND |
Feb. 15, 2005 |
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