Reminds me of Clinkle (https://en.wikipedia.org/wiki/Clinkle) which hoped to use sound to transmit payments.
Ultrasonic Payments
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Re: Ultrasonic Payments
#12will it cause issues with receiver when multiple senders try to send at the same time? Wont it cause chaos in the sound waves ?
Seems like you could just use algorithms used in other wireless communications.
Re: Ultrasonic Payments
#13will it cause issues with receiver when multiple senders try to send at the same time? Wont it cause chaos in the sound waves ?
This is a problem with any kind of other radio spectrum emission -- the way they solve this is by multiplexing, in various ways. Here's a quick google intro:
https://www.intechopen.com/chapters/66562
Some packets may get lost, but thanks to checksums we can detect and try some other clear channels/methods/etc.
Re: Ultrasonic Payments
#14Guide dogs seem like a non-starter.
Re: Ultrasonic Payments
#15Guide dogs seem like a non-starter.
Is this actually a problem? The length of sound is most likely pretty short as it's sending a short spurt of data (like a link). The speaker on the phone is also not very powerful so this would be akin to having someone playing music on their phone (for a very short period of time).
Re: Ultrasonic Payments
#16Reminds me of Clinkle ( https://en.wikipedia.org/wiki/Clinkle ) which hoped to use sound to transmit payments.
Key difference, this one has demonstrated it working!
Jokes aside, I'm sure Clinkle had something working in a demo form but obviously the problem is sound as a digital communication medium is terrible outside of specific use cases (air gap attacks?).
Clinkle is up there in the who's who of blow ups.
Re: Ultrasonic Payments
#17I'm reminded of Google Tone[0], which beamed URLs audibly to nearby browsers in an Airdrop-style experience. A neat trick, but ultimately useless given that most devices have less obtrusive ways of sharing data P2P. The ultrasonic aspect of this experiment makes the technology a lot more useful.
Tone also came with the unfortunate side effect of Google software having constant access to your microphone.
0: https://chrome.google.com/webstore/detail/google-tone/nnckeh...
Re: Ultrasonic Payments
#18I'm reminded of Google Tone[0], which beamed URLs audibly to nearby browsers in an Airdrop-style experience. A neat trick, but ultimately useless given that most devices have less obtrusive ways of sharing data P2P. The ultrasonic aspect of this experiment makes the technology a lot more useful. Tone also came with the unfortunate side effect of Google software having constant access to your microphone. 0: https://ch…
IIRC, Webex Teams used to do something like this if you walked into a conference room that had a Webex teleconference setup. I haven't used it in a few years, though.
Re: Ultrasonic Payments
#19This makes me think of of the Amazon Dash button which had a microphone [0] that would listen for ultrasound emitted from your phone to configure wifi credentials.
Re: Ultrasonic Payments
#20I'm reminded of Google Tone[0], which beamed URLs audibly to nearby browsers in an Airdrop-style experience. A neat trick, but ultimately useless given that most devices have less obtrusive ways of sharing data P2P. The ultrasonic aspect of this experiment makes the technology a lot more useful. Tone also came with the unfortunate side effect of Google software having constant access to your microphone. 0: https://ch…
IIRC, Webex Teams used to do something like this if you walked into a conference room that had a Webex teleconference setup. I haven't used it in a few years, though.
Same thing with zoom rooms - https://support.zoom.us/hc/en-us/articles/214629303-Direct-s...