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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Dusty Chipura‏ @dustychipura 29 Dec 2020
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      So I just learned that the basis of wifi, bluetooth and some miltary technologies was invented by actress Hedy Lamar, who also advised Howard Hughes on how to make better airplane wings. She was not compensated for her patent/invention.

      15 replies 73 retweets 410 likes
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    2. whitequark‏ @whitequark 30 Dec 2020
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      Replying to @dustychipura

      WiFi does not use FHSS; please ensure technical accuracy.

      3 replies 0 retweets 15 likes
    3. Andrew Zonenberg‏ @azonenberg 30 Dec 2020
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      Replying to @whitequark @dustychipura

      My understanding was that the original 802.11-1997 used FHSS. Everything more recent is DSSS or OFDM I believe.

      1 reply 0 retweets 7 likes
    4. Paul David‏ @daulpavid 30 Dec 2020
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      Replying to @azonenberg @whitequark @dustychipura

      FHSS is definitely in a 802.11 standard I was reading through at one point. Wasn't sure if it was used, though.

      1 reply 0 retweets 0 likes
    5. Andrew Zonenberg‏ @azonenberg 30 Dec 2020
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      Replying to @daulpavid @whitequark @dustychipura

      https://en.wikipedia.org/wiki/IEEE_802.11_(legacy_mode) … Ran at 1-2 Mbps over either IR (in the spec but never used), FHSS, or DSSS.

      1 reply 0 retweets 2 likes
      Hector Martin‏ @marcan42 30 Dec 2020
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      Replying to @azonenberg @daulpavid and

      Huh, TIL. Apparently that early standard was such a non-interoperable mess that it prompted 802.11b and the Wi-Fi trademark/certification, which were intended to fix it (and dropped FHSS in the process).

      10:27 PM - 30 Dec 2020
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      • whitequark Kean Maizels
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