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PICList Thread
'Rolling codes gather no moss...'
1999\01\08@054629 by Tjaart van der Walt

Ian Rozowsky wrote:
> Keeloq's encryption is not technically rolling code, but rather code
> hopping. The rolling code algorithms supposedly originated in the US,
> whereas code hopping was developed in S.A.

I know Mchip calls it 'code hopping' in the same way
they call EEPROM PICs 'flash'.

It is also like some of these new RF chipsets that claim
to be 'spread spectrum'. Technically it can be defended
(a few rf channels), but then FSK could also be called
'spread spectrum'.

The South African company who developed it, is Nanoteq

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