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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 |
| 6970503 |
Apparatus and method for converting analog signal to pulse-width-modulated signal |
Nov. 29, 2005 |
| 6970753 |
Storage and transmission of one-bit data |
Nov. 29, 2005 |
| 6967606 |
Loop filter for a continuous time sigma delta analog to digital converter |
Nov. 22, 2005 |
| 6967607 |
Data converters with digitally filtered pulse width modulation output stages and methods and systems using the same |
Nov. 22, 2005 |
| 6967608 |
Sigma-delta analog-to-digital converter (ADC) with truncation error cancellation in a multi-bit feedback digital-to-analog converter (DAC) |
Nov. 22, 2005 |
| 6965333 |
Circuit for using capacitor voltage divider in a delta-sigma digital-to-analog converter to generate reference voltage |
Nov. 15, 2005 |
| 6965335 |
Methods for output edge-balancing in pulse width modulation systems and data converters using the same |
Nov. 15, 2005 |
| 6965336 |
Systems and methods of bidirectional communication across an isolation barrier |
Nov. 15, 2005 |
| 6965339 |
Method and system for analog to digital conversion using digital pulse width modulation (PWM) |
Nov. 15, 2005 |
| 6962436 |
Digitizing temperature measurement system and method of operation |
Nov. 8, 2005 |
| 6963297 |
Delta-sigma digital-to-analog converter assembly |
Nov. 8, 2005 |
| 6958723 |
Method and apparatus for reducing noise in analog-to-digital converter devices |
Oct. 25, 2005 |
| 6956513 |
Error feedback structure for delta-sigma modulators with improved stability |
Oct. 18, 2005 |
| 6956514 |
Delta-sigma modulators with improved noise performance |
Oct. 18, 2005 |
| 6956516 |
A/D conversion circuit, temperature-sensor circuit, integrated circuit, and method of adjusting the temperature-sensor circuit |
Oct. 18, 2005 |
| 6954159 |
Low distortion band-pass analog to digital converter with feed forward |
Oct. 11, 2005 |
| 6954160 |
Filter for digitally processing an analog input signal with analog feedback |
Oct. 11, 2005 |
| 6954161 |
Cascade delta-sigma modulator |
Oct. 11, 2005 |
| 6954162 |
Low power, high SNR, high order delta sigma modulator stage having integrators with pipelined cross coupled input circuits |
Oct. 11, 2005 |
| 6952176 |
Digital-to-analogue converter circuits |
Oct. 4, 2005 |
| 6950049 |
Computer program product for performing digital-to-analog conversion |
Sep. 27, 2005 |
| 6946983 |
Digital-to-analog converter having error correction |
Sep. 20, 2005 |
| 6943715 |
Bandpass sigma-delta analog-to-digital converter and mash-sigma-delta converter incorporating same |
Sep. 13, 2005 |
| 6943716 |
Variable rate sigma delta modulator |
Sep. 13, 2005 |
| 6943717 |
Sigma delta class D architecture which corrects for power supply, load and H-bridge errors |
Sep. 13, 2005 |
| 6940434 |
Methods and systems for digital dither |
Sep. 6, 2005 |
| 6940435 |
Method and system for adjusting the step clock of a delta-sigma transformer and/or switched capacitor filter |
Sep. 6, 2005 |
| 6940436 |
Analog-to-digital conversion system with second order noise shaping and a single amplifier |
Sep. 6, 2005 |
| 6940437 |
Multibit delta-sigma modulator with variable-level quantizer |
Sep. 6, 2005 |
| 6940438 |
Method and circuit for reducing quantizer input/output swing in a sigma-delta modulator |
Sep. 6, 2005 |
| 6937175 |
Amplifier linearization using delta-sigma predistortion |
Aug. 30, 2005 |
| 6937176 |
Ultrasonic signal acquisition in the digital beamformer |
Aug. 30, 2005 |
| 6933870 |
Method and apparatus for efficient mixed signal processing in a digital amplifier |
Aug. 23, 2005 |
| 6933871 |
Feedback steering delta-sigma modulators and systems using the same |
Aug. 23, 2005 |
| 6933872 |
Digital/analog converter circuit with a device for compensating nonlinear distortions |
Aug. 23, 2005 |
| 6934324 |
Zero value-detecting circuit |
Aug. 23, 2005 |
| 6930624 |
Continuous time fourth order delta sigma analog-to-digital converter |
Aug. 16, 2005 |
| 6930625 |
Multi-thread parallel processing sigma-delta ADC |
Aug. 16, 2005 |
| 6930626 |
Computer program product for mismatched shaping of an oversampled converter |
Aug. 16, 2005 |
| 6930630 |
Analog-to-digital converter |
Aug. 16, 2005 |
| 6927715 |
Device and control structure of multi-level pulse width modulation |
Aug. 9, 2005 |
| 6927716 |
Variable modulus interpolator, and a variable frequency synthesizer incorporating the variable modulus interpolator |
Aug. 9, 2005 |
| 6927717 |
Buffered oversampling analog-to-digital converter with improved DC offset performance |
Aug. 9, 2005 |
| 6927718 |
Circuit arrangement and method for reducing an alignment error in a .SIGMA.-.DELTA. modulator |
Aug. 9, 2005 |
| 6927720 |
Analog signal outputting circuit and multi-level delta-sigma modulator employing the analog signal outputting circuit |
Aug. 9, 2005 |
| 6927722 |
Series capacitive component for switched-capacitor circuits consisting of series-connected capacitors |
Aug. 9, 2005 |
| 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 |
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