[sdiy] improved dynamic range diffpair-vca

[Aaron Lanterman]

On Thu, 26 Apr 2007, HOSHUYAMA wrote:

> Actually, what I saw the circuit topology was a patent application (In 
> Japan, almost all the patent applications becomes public after one and a 
> half years.) not a filed patent.
>
> A couple of years ago, I saw the same structure in a Japanese 
> electronics book published in 80's. I guess, the structure was not 
> patented.

Interesting! Thanks!

- Aaron

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