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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 |
| 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 |
| 7365669 |
Low-delay signal processing based on highly oversampled digital processing |
Apr. 29, 2008 |
| 7365668 |
Continuous-time delta-sigma analog digital converter having operational amplifiers |
Apr. 29, 2008 |
| 7365667 |
Delta-sigma analog-to-digital converter (ADC) having an intermittent power-down state between conversion cycles |
Apr. 29, 2008 |
| 7362252 |
Bandwidth tunable sigma-delta ADC modulator |
Apr. 22, 2008 |
| 7362251 |
Method and system for digital to analog conversion for power amplifier driver amplitude modulation |
Apr. 22, 2008 |
| 7362250 |
Dynamic dither for sigma-delta converters |
Apr. 22, 2008 |
| 7362247 |
Digital correction of nonlinearity errors of multibit delta-sigma digital to analog converters |
Apr. 22, 2008 |
| 7359522 |
Coding of stereo signals |
Apr. 15, 2008 |
| 7358885 |
Mixing DAC architectures for a radio frequency receiver |
Apr. 15, 2008 |
| 7358884 |
Methods and systems for implementing a Digital-to-Analog Converter |
Apr. 15, 2008 |
| 7358881 |
Quantizer overload prevention for feed-back type delta-sigma modulators |
Apr. 15, 2008 |
| 7358880 |
Magnetic field feedback delta-sigma modulator sensor circuit |
Apr. 15, 2008 |
| 7358879 |
.DELTA..SIGMA. modulator system with start up transient suppression |
Apr. 15, 2008 |
| 7358869 |
Power efficient, high bandwidth communication using multi-signal-differential channels |
Apr. 15, 2008 |
| 7356186 |
Digital representation of audio waveforms using peak shifting to provide increased dynamic range |
Apr. 8, 2008 |
| 7355540 |
Multi stage noise shaping quantizer |
Apr. 8, 2008 |
| 7355539 |
Multi-bit ADC with sigma-delta modulation |
Apr. 8, 2008 |
| 7355538 |
Binary delta-sigma modulator |
Apr. 8, 2008 |
| 7352311 |
Continuous time noise shaping analog-to-digital converter |
Apr. 1, 2008 |
| 7352262 |
Insulation of anti-resonance in resonators |
Apr. 1, 2008 |
| 7345608 |
Delta-Sigma DAC |
Mar. 18, 2008 |
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