H - Electricity – 03 – M
Patent
H - Electricity
03
M
354/97
H03M 1/08 (2006.01) H03M 1/06 (2006.01) H03M 1/68 (2006.01)
Patent
CA 2019237
METHOD AND APPARATUS FOR LINEARIZING THE OUTPUT OF A DIGITAL-TO-ANALOG CONVERTER Abstract of the Disclosure Distortion in a digital-to-analog converter (DAC) is eliminated by adding a digital random number to each sample of the digital signal, converting the sum into analog form, and subtracting from this analog sum the analog counterpart of the digital random number. The result is the analog counterpart to the input digital signal. The conversion of the summed digital signal and the random number into analog form can be performed by two conventional DACs. For any digital input sample, the output of each DAC is equally likely to contain any of the possible distortion errors produced by that DAC. (An exception is the most significant output bit of the DAC that processes the summed signal, an exception that may be handled by stripping off the most significant bit and applying it to a one bit DAC.) The error signal at the output of each of the two DACs is thus a random sequence (i.e. noise) of DAC distortion errors. The time average of this noise signal is a small offset error which, if desired, can be removed by subsequent processing stages.
Agilent Technologies Inc.
Sim & Mcburney
LandOfFree
Method and apparatus for linearizing the output of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for linearizing the output of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for linearizing the output of a... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1813381