Innovative 2° order, 3 base-stages biquad/universal continuous time analog active filters type resonant and, more particulary, active self-compensation techniques to improve the frequency range and the selectivity.
These techniques are the only ones that can (fully) erase the parasitic poles using an additional OpAmplifier that has a functionally filtering output and with very low noise; so in several applications the effective additional manufacturing cost is as if zero.
The efficiency was processed by a computer also with statistics analysis and verified with prototypes.
WebSite:
http://www.ideanextstep.com/ideaspace_active_rc_fully_self-compensated_active_filter.php
**For licensing too, (The Price above is to be intended for all the Patent Family)**
More Information
Development Status: Finished Prototype US Patent Status: US Provisional Patent US Patent Number(s): US2006197587 A1 International Patents: EP1665525 A2, CN1875542 A, ITMI20031566 A1
Hello everyone, I'm Roberto, I've been a privat electronic researcher since 1998. I won 2 invention awards on 1998 and 1999. I worked from 1998 to 2007 to develop my inventions, new electronic active filters, and became them patents/applications.
I discovered a simple algeblical method to project active filters without compensation, and a new claim method to have less indipendent claims without limitations, which I successfully used for 2 patents going to be granted by the USPTO (with 10 indipendent claims) and by the EPO, respectively. I've filed 10 international patent applications and obtained 3 issued patents (Italy and USA) for now.
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