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Discussion Groups | Comp.DSP | Who are Butterworth filters named after ?

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Who are Butterworth filters named after ? - Robert Rozman - 15:44 28-11-04

Hi,

I'm trying to dig some more info about Butterworth guy, that certaing group
of IIR filters are named after. There are a lot of Butterworths in the
history, so I'm curious which one is right...

Thanks in advance,

regards,

Robert.

Re: Who are Butterworth filters named after ? - Mark Borgerding - 15:54 28-11-04

Robert Rozman wrote:
> Hi,
> 
> I'm trying to dig some more info about Butterworth guy, that certaing group
> of IIR filters are named after. There are a lot of Butterworths in the
> history, so I'm curious which one is right...
> 
> Thanks in advance,
> 
> regards,
> 
> Robert.
> 
> 

wikipedia says:

... first described by the British engineer S. Butterworth, (who 
specifically refused to publish his first name; it is thought to be 
Stephen) in his paper "On the Theory of Filter Amplifiers", Wireless 
Engineer (also called Experimental Wireless and the Radio Engineer), 
vol. 7, 1930, pp. 536-541.

Re: Who are Butterworth filters named after ? - 16:19 28-11-04

"Robert Rozman" <r...@fri.uni-lj.si> writes:
> I'm trying to dig some more info about Butterworth guy, that certaing group
> of IIR filters are named after. There are a lot of Butterworths in the
> history, so I'm curious which one is right...

According to http://en.wikipedia.org/wiki/Butterworth_filter his name
might have been Stephen.

-- 
Lars

Re: Who are Butterworth filters named after ? - Stephan M. Bernsee - 04:44 29-11-04

On 2004-11-28 21:54:08 +0100, Mark Borgerding <m...@borgerding.net> said:

> wikipedia says:
> 
> 
> ... first described by the British engineer S. Butterworth, (who 
> specifically refused to publish his first name; it is thought to be 
> Stephen) in his paper "On the Theory of Filter Amplifiers", Wireless 
> Engineer (also called Experimental Wireless and the Radio Engineer), 
> vol. 7, 1930, pp. 536-541.

Hm, if his name was really Stephen, why not publish it? My guess is it 
was something more exotic (or maybe female?)

:-)
-- 
Stephan M. Bernsee
http://www.dspdimension.com

Re: Who are Butterworth filters named after ? - Steve Underwood - 04:52 29-11-04

Stephan M. Bernsee wrote:

> On 2004-11-28 21:54:08 +0100, Mark Borgerding <m...@borgerding.net> said:
>
>> wikipedia says:
>>
>>
>> ... first described by the British engineer S. Butterworth, (who 
>> specifically refused to publish his first name; it is thought to be 
>> Stephen) in his paper "On the Theory of Filter Amplifiers", Wireless 
>> Engineer (also called Experimental Wireless and the Radio Engineer), 
>> vol. 7, 1930, pp. 536-541.
>
>
> Hm, if his name was really Stephen, why not publish it? My guess is it 
> was something more exotic (or maybe female?)
>
> :-)

Maybe he just liked to foster an air of mystery. Also, not every Stephen 
particularly likes being Stephen.

Regards,
Steve (and definitely not Stephen :-) )

Re: Who are Butterworth filters named after ? - Stephan M. Bernsee - 05:23 29-11-04

On 2004-11-29 10:52:51 +0100, Steve Underwood <s...@dis.org> said:

> Maybe he just liked to foster an air of mystery. Also, not every 
> Stephen particularly likes being Stephen.
> 
> Regards,
> Steve (and definitely not Stephen :-) )

Yeah maybe :-)

Regards,
Stephan (also definitely not Stephen)!
-- 
Stephan M. Bernsee
http://www.dspdimension.com