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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 |
| 7034728 |
Bandpass delta-sigma modulator with distributed feedforward paths |
Apr. 25, 2006 |
| 7034729 |
Adding circuit suitable for sigma-delta modulator circuits |
Apr. 25, 2006 |
| 7034730 |
Pipelined delta sigma modulator analog to digital converter |
Apr. 25, 2006 |
| 7034731 |
A/D converter apparatus and D/A converter apparatus including a digital filter |
Apr. 25, 2006 |
| 7030792 |
Suppressing digital-to-analog converter (DAC) error |
Apr. 18, 2006 |
| 7030797 |
Broadband sigma-delta modulator |
Apr. 18, 2006 |
| 7030798 |
State-delayed technique and system to remove tones of dynamic element matching |
Apr. 18, 2006 |
| 7026970 |
Method and system for a multi-rate analog finite impulse response filter |
Apr. 11, 2006 |
| 7023369 |
Multiplexed-input-separated sigma-delta analog-to-digital converter design for pixel-level analog-to-digital conversion |
Apr. 4, 2006 |
| 7023371 |
Method and apparatus for an image canceling digital-to-analog converter (DAC) |
Apr. 4, 2006 |
| 7019675 |
System and method for minimizing crosstalk between signals of photoconductive elements |
Mar. 28, 2006 |
| 7015843 |
Sigma-delta converter with noise suppression |
Mar. 21, 2006 |
| 7015844 |
Minimized SAR-type column-wide ADC for image sensors |
Mar. 21, 2006 |
| 7015850 |
Bandwidth limited sampling circuit of high linearity |
Mar. 21, 2006 |
| 7016421 |
Time-interleaved delta sigma analog to digital modulator |
Mar. 21, 2006 |
| 7009539 |
Modulator providing only quantization error component to delta sigma modulator |
Mar. 7, 2006 |
| 7009540 |
Method for designing a noise shaper with a single loop distributed feedback delta-sigma modulator |
Mar. 7, 2006 |
| 7009541 |
Input common-mode voltage feedback circuit for continuous-time sigma-delta analog-to-digital converter |
Mar. 7, 2006 |
| 7009542 |
System and method for spectral shaping of dither signals |
Mar. 7, 2006 |
| 7009543 |
Multiple non-monotonic quantizer regions for noise shaping |
Mar. 7, 2006 |
| 7006022 |
System and method for enhancing data correction capability using error information obtained from demodulation procedures |
Feb. 28, 2006 |
| 7006023 |
Sigma-delta modulator with passive bandpass loop filter |
Feb. 28, 2006 |
| 7006024 |
Variable modulus interpolator, and a variable frequency synthesiser incorporating the variable modulus interpolator |
Feb. 28, 2006 |
| 7002497 |
Methods and systems for digital dither |
Feb. 21, 2006 |
| 7002501 |
Analog-to-digital converter having parametric configurablity |
Feb. 21, 2006 |
| 7003023 |
Digital isolation system with ADC offset calibration |
Feb. 21, 2006 |
| 6998910 |
Amplifier using delta-sigma modulation |
Feb. 14, 2006 |
| 6999014 |
Incremental-delta analogue-to-digital conversion |
Feb. 14, 2006 |
| 6999015 |
Electronic device, a digital-to-analog converter, and a method of using the electronic device |
Feb. 14, 2006 |
| 6992606 |
Method and circuit for multi-standard sigma-delta modulator |
Jan. 31, 2006 |
| 6989778 |
Semi-conductor circuit arrangement |
Jan. 24, 2006 |
| 6990152 |
Digital signal processing device and a method and a .DELTA.-.sigma. sigma modulator using the same method |
Jan. 24, 2006 |
| 6987473 |
Digital signal-rate converter and systems incorporating same |
Jan. 17, 2006 |
| 6987474 |
Beamformed ultrasonic imager with delta-sigma feedback control |
Jan. 17, 2006 |
| 6987475 |
Audio digital to analog converter with harmonic suppression |
Jan. 17, 2006 |
| 6985531 |
Dual domain differential encoder/decoder |
Jan. 10, 2006 |
| 6982662 |
Method and apparatus for efficient conversion of signals using look-up table |
Jan. 3, 2006 |
| 6983011 |
Filter circuit |
Jan. 3, 2006 |
| 6980143 |
Scalable encoder and decoder for scaled stream |
Dec. 27, 2005 |
| 6980144 |
Method for reducing DAC resolution in multi-bit sigma delta analog-to digital converter (ADC) |
Dec. 27, 2005 |
| 6980145 |
System and method for noise cancellation in a signal processing circuit |
Dec. 27, 2005 |
| 6977601 |
Low power current input delta-sigma ADC using injection FET reference |
Dec. 20, 2005 |
| 6975255 |
Random interleaving dither for sigma-delta analog-to-digital converters |
Dec. 13, 2005 |
| 6975257 |
Sigma-delta modulation |
Dec. 13, 2005 |
| 6975258 |
Circuit for direct digital delta-sigma conversion of variable electrical capacitance |
Dec. 13, 2005 |
| 6975259 |
Continuous-time delta-sigma ADC with programmable input range |
Dec. 13, 2005 |
| 6972704 |
Sigma-delta modulator with PWM output |
Dec. 6, 2005 |
| 6972705 |
Signal processing system having an ADC delta-sigma modulator with single-ended input and feedback signal inputs |
Dec. 6, 2005 |
| 6970123 |
Inductorless architecture for a switching amplifier |
Nov. 29, 2005 |
| 6970126 |
Variable capacitance switched capacitor input system and method |
Nov. 29, 2005 |
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