Thank you for your question.
Here are a couple of examples you are asking for.
1-) Digital phones such as DECT (Digital Enhanced Cordless
Telecommunications) use digital transmission methods, but present the
information to the user in analogue form. Analogue sound is generated
by the speaker, it goes through a microphone that transforms the sound
into electric signals, which are then processed by a DSP (Digital
Signal Processor) and transmitted digitally through air using
You can find more information about DECT here:
2-) A similar example is a wireless headphone. Sound is transmitted
digitally to the headphones and then transformed to analogue sound.
Amphony 2000 Digital Wireless Headphones
3-) For Cable TV, analogue video tapes are digitized, then signals are
transmitted digitally over coaxial cable, then transformed using an RF
modulator within the digital tuner set-top box back into an analogue
signal, that can then be picked up by an analogue tuner and displayed
on an analogue TV.
I hope this answers your question. If something is unclear, if you
require any more help or you require any clarifications, please do not
hesitate to ask.