 |
|
 |
| |
 |
|
Class Information
Number: 341/150
Name: Coded data generation or conversion > Analog to or from digital conversion > Digital to analog conversion > Using charge coupled devices or switched capacitances
Description: Subject matter where there is a digital to analog converter using devices or circuits through which there is a sequential transfer of electric charges.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7403148 |
Methods and apparatus to balance reference settling in switched-capacitor pipelined digital to analog converter |
Jul. 22, 2008 |
| 7403147 |
Precision capacitor array |
Jul. 22, 2008 |
| 7388533 |
Multi-bit sigma-delta modulator and digital-to-analog converter with one digital-to-analog capacitor |
Jun. 17, 2008 |
| 7355542 |
Polarization switching digital to analog converter and method |
Apr. 8, 2008 |
| 7355543 |
Digital-to-analog converter using capacitors and operational amplifier |
Apr. 8, 2008 |
| 7352314 |
Digital-to-analog converter circuit |
Apr. 1, 2008 |
| 7342526 |
Digital-to-analog converter using plural transistors having the same operating characteristics |
Mar. 11, 2008 |
| 7324034 |
Methods and apparatus to balance reference settling in switched-capacitor pipelined digital to analog converter |
Jan. 29, 2008 |
| 7319423 |
Multi-mode ADC and its application to CMOS image sensors |
Jan. 15, 2008 |
| 7319421 |
Foldback free capacitance-to-digital modulator |
Jan. 15, 2008 |
| 7283077 |
Divide-add circuit and high-resolution digital-to-analog converter using the same |
Oct. 16, 2007 |
| 7268718 |
Capacitor-based digital-to-analog converter for low voltage applications |
Sep. 11, 2007 |
| 7250886 |
Sigma-delta modulator |
Jul. 31, 2007 |
| 7242331 |
Error averaging comparator based switch capacitor circuit and method thereof |
Jul. 10, 2007 |
| 7236116 |
Reconfigurable switched-capacitor input circuit with digital-stimulus acceptability for analog tests |
Jun. 26, 2007 |
| 7236113 |
Capacitance-to-digital modulator with sensor failure-mode detection |
Jun. 26, 2007 |
| 7227486 |
Switched capacitor circuit type digital/analog converter capable of suppressing change of setting error |
Jun. 5, 2007 |
| 7218259 |
Analog-to-digital converter with signal-to-noise ratio enhancement |
May. 15, 2007 |
| 7199743 |
Cyclic digital to analog converter |
Apr. 3, 2007 |
| 7199740 |
Method and apparatus for use in switched capacitor systems |
Apr. 3, 2007 |
| 7173554 |
Method and a digital-to-analog converter for converting a time varying digital input signal |
Feb. 6, 2007 |
| 7167119 |
Delta-sigma modulators with double sampling input networks and systems using the same |
Jan. 23, 2007 |
| 7167121 |
Method and apparatus for split reference sampling |
Jan. 23, 2007 |
| 7164377 |
Multiplexed voltage reference strategy for codec |
Jan. 16, 2007 |
| 7129877 |
Digital-to-analog converter with switched capacitor network |
Oct. 31, 2006 |
| 7113120 |
Charge transfer system and method |
Sep. 26, 2006 |
| 7113116 |
Sample and hold apparatus |
Sep. 26, 2006 |
| 7102558 |
Five-level feed-back digital-to-analog converter for a switched capacitor sigma-delta analog-to-digital converter |
Sep. 5, 2006 |
| 7102557 |
Switched capacitor DAC |
Sep. 5, 2006 |
| 7095350 |
DA converter circuit provided with DA converter of segment switched capacitor type |
Aug. 22, 2006 |
| 7095356 |
Providing reference voltage with desired accuracy in a short duration to a dynamically varying load |
Aug. 22, 2006 |
| 7061420 |
Gain control for analog-digital converter |
Jun. 13, 2006 |
| 7061418 |
Digital/analog converter, display driver and display |
Jun. 13, 2006 |
| 7057544 |
Direct charge transfer digital to analog converter having a single reference voltage |
Jun. 6, 2006 |
| 7046178 |
Method and device for the calibration of a weighted network |
May. 16, 2006 |
| 7034737 |
Switched capacitor circuits |
Apr. 25, 2006 |
| 7034733 |
Switching circuitry |
Apr. 25, 2006 |
| 7026966 |
Digital-to-analog converter comprising an integrated test circuit |
Apr. 11, 2006 |
| 6972702 |
1-Of-N A/D converter |
Dec. 6, 2005 |
| 6967609 |
Method and apparatus for dynamically biasing switching elements in current-steering 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 |
| 6958655 |
Variable gain amplifier circuit using variable impedance circuit |
Oct. 25, 2005 |
| 6956515 |
Digital to analog converter augmented with direct charge transfer techniques |
Oct. 18, 2005 |
| 6956519 |
Switched capacitor circuit of a pipeline analog to digital converter and a method for operating the switched capacitor circuit |
Oct. 18, 2005 |
| 6956514 |
Delta-sigma modulators with improved noise performance |
Oct. 18, 2005 |
| 6954166 |
Current generating circuit, electro-optical device, and electronic apparatus |
Oct. 11, 2005 |
| 6952176 |
Digital-to-analogue converter circuits |
Oct. 4, 2005 |
| 6946986 |
Differential sampling circuit for generating a differential input signal DC offset |
Sep. 20, 2005 |
| 6943721 |
Charge-coupled amplifier and converter with matched offsets |
Sep. 13, 2005 |
| 6927720 |
Analog signal outputting circuit and multi-level delta-sigma modulator employing the analog signal outputting circuit |
Aug. 9, 2005 |
|
|
|
 |
|
 |
|
| |
Randomly Featured Patents |
|
