Hello,

     I'm doing some R&D about learning remote controls and I'm intrigued 
with how do they *learn*.

     1) They recognize the IR protocol used (RC5, Hitachi, Sony etc) and 
put the kind/address/command (for each programmed key) values on a table?

     2) Or do they record the pulses/spaces duration and just replay it 
when the "learned" key is pressed?

     The first method uses very little (flash/ram) memory but it's hard 
to implement. Also, it does have the disavantage of on't working when 
one uses a remote control that uses a protocol different from the ones 
implemented.

     The second method is simple to implement, but would use a lot of 
memory for recording all the learned codes.

     Best regards,

     Brusque
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Edson Brusque                     C.I.Tronics Lighting Designers Ltda
Research and Development                  Joinville  -  SC  -  Brazil
http://www.suporte.ind.br/ryan/netiqueta.htm     www.citronics.com.br
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