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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 |
| 7425910 |
Transmitter digital-to-analog converter with noise shaping |
Sep. 16, 2008 |
| 7423573 |
Architecture combining a continuous-time stage with a switched-capacitor stage for digital-to-analog converters and low-pass filters |
Sep. 9, 2008 |
| 7423568 |
Sigma delta modulator |
Sep. 9, 2008 |
| 7423567 |
Analog-to-digital converter (ADC) having a reduced number of quantizer output levels |
Sep. 9, 2008 |
| 7423566 |
Sigma-delta modulator using a passive filter |
Sep. 9, 2008 |
| 7420494 |
Mismatch shaping .DELTA.-.SIGMA. analog to digital converter system |
Sep. 2, 2008 |
| 7420493 |
Extended range delta-sigma modulator and delta-sigma power converter |
Sep. 2, 2008 |
| 7420491 |
Analog signal sampling system and method having reduced average input current |
Sep. 2, 2008 |
| 7420488 |
Apparatus and method for setting filter coefficient, and recording medium having a program recorded thereon |
Sep. 2, 2008 |
| 7420485 |
Sigma-delta modulator and method for sigma-delta modulation |
Sep. 2, 2008 |
| 7417573 |
Sigma-delta circuit and related method with time sharing architecture |
Aug. 26, 2008 |
| 7414557 |
Method and apparatus for feedback signal generation in sigma-delta analog-to-digital converters |
Aug. 19, 2008 |
| 7413342 |
DRAM temperature measurement system |
Aug. 19, 2008 |
| 7411534 |
Analog-to-digital converter (ADC) having integrator dither injection and quantizer output compensation |
Aug. 12, 2008 |
| 7408494 |
Continuous-time delta-sigma analog digital converter |
Aug. 5, 2008 |
| 7408492 |
A/D converter for wideband digital communication |
Aug. 5, 2008 |
| 7405687 |
Continuous-time delta-sigma analog digital converter |
Jul. 29, 2008 |
| 7405686 |
Methods and apparatus for implementing and/or using amplifiers and/or for performing various amplification related operations |
Jul. 29, 2008 |
| 7405685 |
Negative contributive offset compensation in a transmit buffer utilizing inverse clocking |
Jul. 29, 2008 |
| 7405682 |
Delta-sigma analog digital converter with offset compensation |
Jul. 29, 2008 |
| 7405629 |
Frequency modulator, circuit, and method that uses multiple vector accumulation to achieve fractional-N frequency synthesis |
Jul. 29, 2008 |
| 7403151 |
Switch control circuit, .DELTA..SIGMA. modulation circuit, and .DELTA..SIGMA. modulation AD converter |
Jul. 22, 2008 |
| 7403144 |
Pulse domain encoder and filter circuits |
Jul. 22, 2008 |
| 7400284 |
Low noise data conversion circuits and methods and systems using the same |
Jul. 15, 2008 |
| 7398450 |
Parallel precoder circuit |
Jul. 8, 2008 |
| 7397406 |
A/D Conversion circuit with carrier frequency removing feature |
Jul. 8, 2008 |
| 7397405 |
Audio device arrangement structure for a motorcycle, and motorcycle incorporating same |
Jul. 8, 2008 |
| 7397291 |
Clock jitter minimization in a continuous time sigma delta analog-to-digital converter |
Jul. 8, 2008 |
| 7394418 |
Apparatus comprising a sigma-delta modulator and method of generating a quantized signal-delta modulator |
Jul. 1, 2008 |
| 7391351 |
Bitstream controlled reference signal generation for a sigma-delta modulator |
Jun. 24, 2008 |
| 7391350 |
Adaptive multi-bit delta and sigma-delta modulation |
Jun. 24, 2008 |
| 7388533 |
Multi-bit sigma-delta modulator and digital-to-analog converter with one digital-to-analog capacitor |
Jun. 17, 2008 |
| 7388530 |
A/D-converter |
Jun. 17, 2008 |
| 7388438 |
.SIGMA..DELTA. modulator for PLL circuit |
Jun. 17, 2008 |
| 7385540 |
Method for mixing signals with an analog-to-digital converter |
Jun. 10, 2008 |
| 7385539 |
All-digital phase locked loop (ADPLL) system |
Jun. 10, 2008 |
| 7385538 |
Delta sigma modulator with multiple filters |
Jun. 10, 2008 |
| 7385537 |
Linear feedback shift register first-order noise generator |
Jun. 10, 2008 |
| 7382300 |
System-on-chip (SoC) integrated circuit including interleaved delta-sigma analog-to-digital converter (ADC) |
Jun. 3, 2008 |
| 7379002 |
Methods and apparatus for a multi-mode analog-to-digital converter |
May. 27, 2008 |
| 7379001 |
Self-oscillating A/D-converter |
May. 27, 2008 |
| 7379000 |
Floating gate digital-to-analog converter |
May. 27, 2008 |
| 7378997 |
Method of reducing inter-symbol interference, a sigma-delta converter for performing this method and a storage medium conveying information generated by this method |
May. 27, 2008 |
| 7375666 |
Feedback topology delta-sigma modulator having an AC-coupled feedback path |
May. 20, 2008 |
| 7375659 |
Multi-rate network transmission circuit |
May. 20, 2008 |
| 7372385 |
A/D converter, signal processor, and receiving device |
May. 13, 2008 |
| 7372384 |
High-speed, high-resolution, low-power analog-to-digital converter |
May. 13, 2008 |
| 7372383 |
Method for calibrating a digital/analog converter and digital/analog converter |
May. 13, 2008 |
| 7369071 |
Analog and digital signal mixer |
May. 6, 2008 |
| 7369001 |
Frequency synthesizer having variable frequency resolution, and fractional-N frequency synthesizing method using sigma-delta modulation of frequency control pulses |
May. 6, 2008 |
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