If smell can be somehow encoded, it can very well be transmitted through an MPEG transport stream. Then set top box or DTV at home should be able to produce the same smell by precision mixing of some chemicals within cartridges like an ink jet printer's The smell maker can be triggered based on the program time lines - indicates when to trigger one particular smell based on the content being shown - the time lines of the programs are already transmitted to STB.
There are error correction mechanisms already employed in digital transmission so the possibility of an error is very minimal.
Since transmitting all known smells is very difficult, (not because of bandwidth, but the encoding and reproduction of all smells) a fixed set of smells can be defined and they can be triggered. in this case, encoding a smell is plain and easy - just use different numbers for different predefined smells. |