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The uBeam FAQ
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PaulReynolds:
Interesting tweet from a former uBeam employee:

https://twitter.com/alexwhittemore/status/1441824887367032837

"The biggest annoyance at uBeam was if the demo units were running when you took a call. The other side was always like "what the HELL is going on over there?" "Oh yeah sorry I'll go in the other room." The ultrasound down-mixes in the MEMS mic."

This is interesting as I've not heard similar issues from other groups operating in this frequency range, or heard it myself. If true, I wonder if that was disclosed to investors or customers? Seems pretty important for general use and especially public spaces.

PaulReynolds:
For those of you who remember the IEEE Spectrum article on uBeam - Lee Gomes, the author, recently passed away. I'd gotten to know Lee and he was a great guy and journalist, sad to see him gone.

https://spectrum.ieee.org/experts-still-think-ubeamrsquos-throughtheair-charging-tech-is-unlik

https://www.legacy.com/us/obituaries/sfgate/name/lee-gomes-obituary?id=23371687
langwadt:

--- Quote from: PaulReynolds on October 17, 2021, 10:07:36 pm ---Interesting tweet from a former uBeam employee:

https://twitter.com/alexwhittemore/status/1441824887367032837

"The biggest annoyance at uBeam was if the demo units were running when you took a call. The other side was always like "what the HELL is going on over there?" "Oh yeah sorry I'll go in the other room." The ultrasound down-mixes in the MEMS mic."

This is interesting as I've not heard similar issues from other groups operating in this frequency range, or heard it myself. If true, I wonder if that was disclosed to investors or customers? Seems pretty important for general use and especially public spaces.

--- End quote ---


disclose something bad? lol
PaulReynolds:

--- Quote from: langwadt on October 17, 2021, 10:50:52 pm ---
disclose something bad? lol

--- End quote ---

I should have put that in sarcasm quotes
EEVblog:

--- Quote from: PaulReynolds on October 17, 2021, 10:07:36 pm ---Interesting tweet from a former uBeam employee:

https://twitter.com/alexwhittemore/status/1441824887367032837

"The biggest annoyance at uBeam was if the demo units were running when you took a call. The other side was always like "what the HELL is going on over there?" "Oh yeah sorry I'll go in the other room." The ultrasound down-mixes in the MEMS mic."

This is interesting as I've not heard similar issues from other groups operating in this frequency range, or heard it myself. If true, I wonder if that was disclosed to investors or customers? Seems pretty important for general use and especially public spaces.

--- End quote ---

https://www.eevblog.com/forum/chat/the-ubeam-faq/?action=dlattach;attach=1300850;image

Downmixing into the very thing it was designed to power! :-DD
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