Difference between impulse response and idle impulse response in digital communication

[vijbele]

Difference between the impulse response and idle impluse response interms of digital communication.

Refered: wiki

 

[sophiecentaur]

Could you clarify that a bit, please?
Background and where the terms apply together might help.
I am familiar with the term impulse response. It refers to the time domain response of a filter to an impulse (analogue or digital) - but it's a very general term. I haven't heard of 'idle response'.