DAC distortion compensation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 4, 1993
Grant Date -
N/A
app pub date -
Apr 10, 1992
filing date -
Apr 10, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is directed to compensating the sin (x)/x response attendant the output signals from a Digital-To-Analog converter in systems consisting of the cascade connection of a digital processor having a non-uniform frequency response h(nT) and a Digital-To-Analog converter. This is accomplished by altering the processor to provide a frequency response of h(nT)*g(nT), where h(nT) is the impulse response of the processor, g(nT) is the impulse response of the reciprocal of the frequency response of the DAC, and the asterisk represents convolution. Alternatively, if the Fourier transform of the frequency response of the processor is given by F(.omega.), and the DAC exhibits a frequency response S(.omega.), which is the frequency transform of the time response of the DAC sample and hold type output, then the processor is substituted with one having a frequency response defined by the inverse Fourier transform IF(F(.omega.)/S(.omega.))) over the frequency band of interest.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully