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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 |
| 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 |
| 7345607 |
Implantable medical device with adjustable sigma-delta analog-to-digital conversion clock rate |
Mar. 18, 2008 |
| 7345606 |
DA-converter system and a method for converting a multi-bit digital signal to an analog signal |
Mar. 18, 2008 |
| 7345605 |
Pulse amplitude-modulated signal processing |
Mar. 18, 2008 |
| 7342525 |
Sample rate conversion combined with DSM |
Mar. 11, 2008 |
| 7339510 |
Accumulator for adaptive sigma-delta modulation |
Mar. 4, 2008 |
| 7336713 |
Method and apparatus for encoding and decoding data |
Feb. 26, 2008 |
| 7333041 |
System for analog-to-digital conversion |
Feb. 19, 2008 |
| 7330142 |
Sigma-delta modulator with a quantizer/gain element |
Feb. 12, 2008 |
| 7330138 |
Asynchronous sample rate correction by time domain interpolation |
Feb. 12, 2008 |
| 7327296 |
Signal processing system with modified delta sigma modulator quantizer output signals to spread harmonic frequencies of pulse width modulator output signals |
Feb. 5, 2008 |
| 7327295 |
Constant edge-rate ternary output consecutive-edge modulator (CEM) method and apparatus |
Feb. 5, 2008 |
| 7327166 |
Reference buffer with improved drift |
Feb. 5, 2008 |
| 7324036 |
Adaptive, intelligent transform-based analog to information converter method and system |
Jan. 29, 2008 |
| 7324030 |
Multiple stage delta sigma modulators |
Jan. 29, 2008 |
| 7324029 |
Capacitance-to-digital interface circuit for differential pressure sensor |
Jan. 29, 2008 |
| 7324028 |
Self-calibrating continuous-time delta-sigma modulator |
Jan. 29, 2008 |
| 7321325 |
Background calibration of continuous-time delta-sigma modulator |
Jan. 22, 2008 |
| 7321324 |
Unconditionally stable analog-to-digital converter |
Jan. 22, 2008 |
| 7319421 |
Foldback free capacitance-to-digital modulator |
Jan. 15, 2008 |
| 7319420 |
Cascade-type variable-order delta-sigma modulator |
Jan. 15, 2008 |
| 7317411 |
Delta-sigma modulator having quantizer code pattern detection controlled dither |
Jan. 8, 2008 |
| 7317410 |
System and method for spectral shaping of dither signals |
Jan. 8, 2008 |
| 7315269 |
Continuous time .DELTA..SIGMA. modulator system with automatic timing adjustment |
Jan. 1, 2008 |
| 7315264 |
Systems and methods for controlling transient response in the output of a noise shaper |
Jan. 1, 2008 |
| 7312739 |
Communication driver |
Dec. 25, 2007 |
| 7312738 |
Apparatus and method for sigma delta signal treatment |
Dec. 25, 2007 |
| 7310584 |
Enhanced sonde recognition |
Dec. 18, 2007 |
| 7310382 |
Linearized switch-based power amplifier |
Dec. 18, 2007 |
| 7310056 |
Method and system for adjustable sample rate conversion |
Dec. 18, 2007 |
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