Geoffrey S. Mendelson wrote in message
...
N Cook wrote:
Starting with a normal IR R/C with its original crystal and normal
pulsed
output of 25uS per pulse and 20 pulses per bit of data. Would that
produce a
resolvable video stream that could be sent via internet and assuming a
wide
enough acceptance spectrum of the receiving phototransistor/diode of a
learner type universal r/c straight off a pc monitor in a dark room.

I did that in the 1980's with an IR photodiode, an LM324 op amp and an
IR LED. Another thing I should of patented.

Geoff.

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Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
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Thinking of worthy patentable devices
I wonder if anyone makes this sort of truly unirversal r/c for those
annoying situations of one or more key functions missing from the one you
want.

2 stages
1/ Just the recognition code going through all possible permutations
to find the basic power on/off repeated sequence.
Lock that down in memory
2/ and then after that specific code, all operational bit sequences until
that does a function on the TV etc and lock that to a button on the r/c.

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Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
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