Am 13.10.2015 um 15:37 schrieb Pszemol:
> "J.F." <j...@p...onet.pl> wrote in message
> news:561d021d$0$27528$65785112@news.neostrada.pl...
>> Użytkownik "Pszemol" napisał w wiadomości grup
>> dyskusyjnych:mvir3m$inr$...@d...me...
>> "P03" <p...@b...invalid.org> wrote in message
>> news:mvijg6$nug$1@dont-email.me...

>>> Na wideo prezentują pomysł jak by był łatwy do zainstalowania
>>> w typowych "żarówkach" LED do oświetlania pomieszczeń,
>>> a nie cuda na laserach i soczewkowaniu - poza tym, to ma
>>
>> Czyli chyba zasilaniem.
>
> Ciekawe jaką modulację wybiorą...

[z wiki]

The standard defines three PHY layers with different rates:
The PHY I was established for outdoor application and works from 11.67
kbit/s to 267.6 kbit/s.
The PHY II layer permits reaching data rates from 1.25 Mbit/s to 96 Mbit/s.
The PHY III is used for many emissions sources with a particular
modulation method called color shift keying (CSK).
PHY III can deliver rates from 12 Mbit/s to 96 Mbit/s.[31]

The modulation formats recognized for PHY I and PHY II are on-off keying
(OOK) and variable pulse position modulation (VPPM).
The Manchester coding used for the PHY I and PHY II layers includes the
clock inside the transmitted data by representing a
logic 0 with an OOK symbol "01" and a logic 1 with an OOK symbol "10",
all with a DC component. The DC component avoids light
extinction in case of an extended run of logic 0's

Waldek