Article View: comp.robotics
Article #478Re: Wireless Computer Communication
From: Kent Hoult
Date: Fri, 25 May 1990 13:36
Date: Fri, 25 May 1990 13:36
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A few years ago there was a terminal interconnect that used LED "Floodlights" on the ceiling, and smaller ones on the terminals. The floodlights consisted of about a dozen hefty LED's in a clump aimed in various directions. There was also a phototransistor in the clump to receive. I think the idea was that you didn't even have to have direct line of sight, white walls would reflect enough light to keep the link going. If your robot is going to stay in one room, then something like this might work. (PS - I seem to recall this thing was used for IBM 3270 terminals at around 1.5 MBit/sec) Kent Hoult TEL: (617) 873-4385 ARPA: khoult@bbn.com
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!snorkelwacker!usc!bbn.com!khoult From: khoult@bbn.com (Kent Hoult) Newsgroups: comp.robotics Subject: Re: Wireless Computer Communication Message-ID: <56646@bbn.BBN.COM> Date: 25 May 90 13:36:01 GMT References: <9352@pt.cs.cmu.edu> <18150@well.sf.ca.us> Sender: news@bbn.com Reply-To: khoult@BBN.COM (Kent Hoult) Organization: Bolt Beranek and Newman Inc., Cambridge MA Lines: 18