As far as I am aware, there is no such thing as a broken time signature.
There are odd time signatures, sure, and you can mix them up, say go from 4/4 to 3/4 and then back to 4/4, but the term "broken time signature" is not something I have encountered in music theory.
There are compound time signatures which can be very complex, and it is extremely rare to find them within techno, and then going further into the more complex you have, complex, assymetric and irregular time signatures.
none of these however can be called "broken time signatures".
I now take off my nerd specs, and go back to boshing out beats in the studio.