Or rather she was part of a team, with her husband and one more, that patented that idea, never really got it to work in real torpedos, and the technology was forgotten until someone referred to it in a later patent. Then her role as background got expanded to take the role of other more influential women, maybe because she had a nicer picture.
And then we should remember that the patent is on the way of getting the synchronisation, not frequency hoping as such an already know technology. And the connection to Bluetooth and Wifi get down to almost 0.