Re: Inject text alerts into a CATV system

["B Fuhrmann" <b-fuhrmann-usenet@xxxxxxxxxxxxxxxxxxxxxxxxx>]

> be too damn difficult to execute at a reasonable price.  I may have to
> settle for CID on one TV and an electronic doorbell.  I may be able to rig
> the doorbell so that its volume is determined by the ambient noise level.
> If Dad is watching March Madness with the volume at max, the doorbell
> volume
> is at maximum.  When there's no sound detected, the doorbell is at normal
> volume.

Have you considered going even simpler?
Put a reasonably bright light near the TV that is triggered by the doorbell
and phone.
You could even have different ones or different flash patterns for each
source.

Getting a little fancier, somone else suggested killing the TV sound.  If
you do that, you could have the circuit latch so that the sound stays off
until a button is pressed.  That way he can answer the appropriate thing
without the massive sound level and come back to it.

My mother likes the TV at a much louder level than some others do.  I would
consider setting something up with some sort of wireless speakers at the
headrest on her favorite chair but there is the problem of getting power to
it without the cord being a tripping  problem.