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Most cables that adapt signals from one format to another are 'active' (that is, contain a microcontroller). c.f.: https://en.wikipedia.org/wiki/Active_cable ht

Most cables that adapt signals from one format to another are 'active' (that is, contain a microcontroller). c.f.: https://en.wikipedia.org/wiki/Active_cable https://en.wikipedia.org/wiki/Active_cable

wmf 14y ago
But there's a big difference between demuxing (e.g. DisplayPort to HDMI) and decompressing video.
ykl 14y ago
I think what makes this particular dongle odd is that unlike most active cables, which contain just a encoder/decoder chip, Apple has put a full ARM SoC.