<communications> /i:-sok'rn-*s/ A form of data transmission that guarantees to provide a certain minimum data rate, as required for time-dependent data such as video or audio.
Isochronous transmission transmits asynchronous data over a synchronous data link so that individual characters are only separated by a whole number of bit-length intervals. This is in contrast to asynchronous transmission, in which the characters may be separated by arbitrary intervals, and with synchronous transmission [which does what?].
Asynchronous Transfer Mode and High Performance Serial Bus can provide isochronous service.
Compare: plesiochronous.
[ANIXTER, LAN Magazine 7.93]
[Better explanation?]
[FOLDOC]
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