new series parallel bandpass

mhtplsh · 13th May 2009, 01:43 AM

I found this new bandpass patent info.
United States Patent 7136498
It is combination of series & parallel tuned 6th order bandpass.

I think we can make one for ourselves.
Anybody have idea of designing this?

aznboi3644 · 13th May 2009, 05:42 AM

I have an idea on this enclosure. I may build an experimental enclosure for an EHQS 12 or old RF 10" sub.

mhtplsh · 13th May 2009, 11:43 AM

it will be better if u can share the info about design.
We can also then try to do experiment.
Waiting for ur results of ur experimental enclosure.

aznboi3644 · 14th May 2009, 01:03 AM

Well I have built some aperiodic bi-chamber enclosures before and this type might be similar in some ways.

Patrick Bateman · 14th May 2009, 05:31 PM

Is it just me, or does it seem like the patent author is just trying to come up with a way to circumnavigate the Bose patent?

In other words, you can't sell a bandpass subwoofer with dual vents without paying Bose a royalty, so he came up with a design that uses three.

(AFAIK, Bose owns the patents on reflex boxes that look like this and this.)

Rademakers · 14th May 2009, 05:33 PM

Isn't the Bose patend expired or going to be expired very soon?

Regards Johan

mhtplsh · 14th May 2009, 06:24 PM

Quote:

Isn't the Bose patend expired or going to be expired very soon?

Bose patent already expired.

13th May 2009, 01:43 AM	#1
mhtplsh diyAudio Member Join Date: Aug 2007	new series parallel bandpass I found this new bandpass patent info. United States Patent 7136498 It is combination of series & parallel tuned 6th order bandpass. I think we can make one for ourselves. Anybody have idea of designing this?

14th May 2009, 05:33 PM	#6
Rademakers diyAudio Member Join Date: Jan 2005 Location: Rotterdam, NL	Isn't the Bose patend expired or going to be expired very soon? Regards Johan __________________ Impossibilities we do immediatly, miracles take slightly longer.

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13th May 2009, 05:42 AM	#2
aznboi3644 diyAudio Member Join Date: Dec 2007	I have an idea on this enclosure. I may build an experimental enclosure for an EHQS 12 or old RF 10" sub.

13th May 2009, 11:43 AM	#3
mhtplsh diyAudio Member Join Date: Aug 2007	it will be better if u can share the info about design. We can also then try to do experiment. Waiting for ur results of ur experimental enclosure.

14th May 2009, 01:03 AM	#4
aznboi3644 diyAudio Member Join Date: Dec 2007	Well I have built some aperiodic bi-chamber enclosures before and this type might be similar in some ways.

14th May 2009, 05:31 PM	#5
Patrick Bateman diyAudio Member Join Date: Oct 2006	Is it just me, or does it seem like the patent author is just trying to come up with a way to circumnavigate the Bose patent? In other words, you can't sell a bandpass subwoofer with dual vents without paying Bose a royalty, so he came up with a design that uses three. (AFAIK, Bose owns the patents on reflex boxes that look like this and this.)

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