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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 |
| 7145492 |
Data management method |
Dec. 5, 2006 |
| 7145491 |
Time-interleaved band-pass delta-sigma modulator |
Dec. 5, 2006 |
| 7142819 |
Circuits and methods for controlling switching noise in switched-mode circuits |
Nov. 28, 2006 |
| 7142606 |
Method and apparatus for shared processing a plurality of signals |
Nov. 28, 2006 |
| 7142144 |
Low power sigma delta modulator |
Nov. 28, 2006 |
| 7142143 |
Time-continuous sigma/delta analog-to-digital converter |
Nov. 28, 2006 |
| 7142142 |
Multi-bit ADC with sigma-delta modulation |
Nov. 28, 2006 |
| 7142070 |
Two-point modulator arrangement |
Nov. 28, 2006 |
| 7138935 |
Low noise digital to signal interval converter with audio applications |
Nov. 21, 2006 |
| 7138934 |
Pattern biasing for look-ahead delta sigma modulators |
Nov. 21, 2006 |
| 7138932 |
Signal converting apparatus for integrating analog-to-digital converter and digital-to-analog converter and integration unit |
Nov. 21, 2006 |
| 7136001 |
Continuous-time integrating filter with minimum phase variation, and bandpass .SIGMA..DELTA. modulator using such a filter |
Nov. 14, 2006 |
| 7132968 |
Hardware-efficient implementation of dynamic element matching in sigma-delta DAC's |
Nov. 7, 2006 |
| 7132967 |
Modulation system |
Nov. 7, 2006 |
| 7130327 |
Digital frequency synthesis |
Oct. 31, 2006 |
| 7129876 |
Digital-analog converter |
Oct. 31, 2006 |
| 7129875 |
Tracking reference system for analog-to-digital converter systems |
Oct. 31, 2006 |
| 7129874 |
Method and apparatus for operating a pipelined ADC circuit |
Oct. 31, 2006 |
| 7129873 |
Variable-order delta sigma modulator and DA converter |
Oct. 31, 2006 |
| 7129866 |
Method and apparatus for operating a delta sigma ADC circuit |
Oct. 31, 2006 |
| 7127644 |
Method and arrangement for concealing errors |
Oct. 24, 2006 |
| 7127221 |
Receiver circuit, particularly for mobile radio |
Oct. 24, 2006 |
| 7127003 |
Method and apparatus for communicating information using different signaling types |
Oct. 24, 2006 |
| 7126517 |
Delta-sigma modulator and delta-sigma modulation method |
Oct. 24, 2006 |
| 7126516 |
Bandpass delta-sigma analog-to-digital converters |
Oct. 24, 2006 |
| 7126436 |
Frequency synthesizer having a more versatile and efficient fractional-N control circuit and method |
Oct. 24, 2006 |
| 7123178 |
Digital encoder and digital-to-analog converter using same |
Oct. 17, 2006 |
| 7123177 |
System and method for stabilizing high order sigma delta modulators |
Oct. 17, 2006 |
| 7123101 |
Phase locked loop comprising a .SIGMA..DELTA. modulator |
Oct. 17, 2006 |
| 7119730 |
Analog-to-digital converter for programmable logic |
Oct. 10, 2006 |
| 7119726 |
Error feedback structure for delta-sigma modulators with improved stability |
Oct. 10, 2006 |
| 7119725 |
Sigma-delta modulator, D/A conversion system and dynamic element matching method |
Oct. 10, 2006 |
| 7119630 |
Frequency synthesizer having a more versatile and efficient fractional-N control circuit and method using vector values |
Oct. 10, 2006 |
| 7119608 |
Forward-amplifying filter circuit |
Oct. 10, 2006 |
| 7116721 |
Delta-sigma modulators with integral digital low-pass filtering |
Oct. 3, 2006 |
| 7116257 |
Low noise digital to analog converter with audio applications |
Oct. 3, 2006 |
| 7116254 |
Complex type sigma-delta analog to digital conversion unit and receiver |
Oct. 3, 2006 |
| 7113122 |
Current sensing analog to digital converter and method of use |
Sep. 26, 2006 |
| 7113120 |
Charge transfer system and method |
Sep. 26, 2006 |
| 7113119 |
Electronic circuit with a sigma delta A/D converter |
Sep. 26, 2006 |
| 7113118 |
Digital signal encoding apparatus and method, digital signal decoding apparatus and method, and digital signal transmission system |
Sep. 26, 2006 |
| 7110460 |
Delta-sigma modulators with integral digital low-pass filtering |
Sep. 19, 2006 |
| 7109805 |
Direct modulator for shift keying modulation |
Sep. 19, 2006 |
| 7107033 |
Smart radio incorporating Parascan.RTM. varactors embodied within an intelligent adaptive RF front end |
Sep. 12, 2006 |
| 7107212 |
Bitstream data reduction coding by applying prediction |
Sep. 12, 2006 |
| 7102557 |
Switched capacitor DAC |
Sep. 5, 2006 |
| 7102558 |
Five-level feed-back digital-to-analog converter for a switched capacitor sigma-delta analog-to-digital converter |
Sep. 5, 2006 |
| 7098823 |
Reduced chop rate analog to digital converter system and method |
Aug. 29, 2006 |
| 7098827 |
Integrator circuit |
Aug. 29, 2006 |
| 7098828 |
Complex band-pass .DELTA..SIGMA. AD modulator for use in AD converter circuit |
Aug. 29, 2006 |
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