Anyone remember those old TV IR remote controls? - absolutely PBA!

Hope this "new" technology is a lot better!

 

 

 

From: Edward Price [mailto:e...@jwjelp.com] 
Sent: 11 December 2017 18:44
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Li-Fi

 

I seem to recall HP was touting some kind of optical link system back in the
90's. (IIRC, it was omni-directional infrared.) I think they were suggesting
it for sharing of a printer within a multi-computer office, or for linking
test equipment into a lab's mini-computer.

 

While I can see some uses where a modulated light source, powerful yet
inexpensive, would be a good data link, I can also see a few problems, the
first of which is bi-directionality and the second is data capacity ahead of
the optical links. As for his hints of vehicular applications, we still
haven't eliminated rain, smoke and fog.

 

Call me cynical, but whenever somebody puts a box on stage and does magic
engineering, I become skeptical. Whaddya mean, you don't want to get into
the details?

 

Altogether, Li-Fi is yet another path. Ubiquitous LED's make it more
attractive, but not quite a standing ovation quality concept.

 

Ed Price
WB6WSN
Chula Vista, CA USA

 

-----Original Message-----
From: Ralph McDiarmid [mailto:ralph.mcdiar...@schneider-electric.com] 
Sent: Monday, December 11, 2017 8:21 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Li-Fi

 

I haven't studied it, but seems to me that one would need to modulate the
light very quickly to get any sort of usable BAUD rate, unless you settle
for transmission of text only.  (like the good old Bell 202 modems over
voice band land lines)

 

Ralph McDiarmid

Product Compliance

Engineering

Solar Business

Schneider Electric

 

 

-----Original Message-----

From: Amund Westin [ <mailto:am...@westin-emission.no>
mailto:am...@westin-emission.no]

Sent: Monday, December 11, 2017 12:51 AM

To:  <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> EMC-PSTC@LISTSERV.IEEE.ORG

Subject: [PSES] Li-Fi

 

I came over this video ....

 
<https://www.ted.com/talks/harald_haas_a_breakthrough_new_kind_of_wireless_i
nternet#t-432451>
https://www.ted.com/talks/harald_haas_a_breakthrough_new_kind_of_wireless_in
ternet#t-432451

 

Anyone who have studied this tech?

 

Cheers,

Amund

 

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