Re: The discovery of the R-C circuit.



On Oct 28, 11:38 am, Jerry Wolf <jjwo...@xxxxxxxxxxx> wrote:
On Oct 18, 8:19 pm, HardySpicer <gyansor...@xxxxxxxxx> wrote:

Do you think in the not too distant future some guy at home or at Uni
is going to re-invent the RC first-order filter? After years of study
at Uni and z-transforms,difference equations,c programing and such
like some guy is going ot have a Eureka moment..F*** me I can do all
this with a few external components and an op-amp!!
Way hay...

Hardy

Tom Barnwell, formerly a professor at Georgia Tech, once described DSP
as
“…That discipline which has allowed us to replace a circuit previously
composed of a capacitor and a resistor with two anti-aliasing filters,
an A-to-D and a D-to-A converter, and a general purpose computer (or
array processor) so long as the signal we are interested in does not
vary too quickly.”

Given that the antialiasing filter might itself be a resistor and a
capacitor, does that mean DSP is totally redundant? :-)

Dirk
.



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