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Re: Inject text alerts into a CATV system

Subject: Re: Inject text alerts into a CATV system
From: "Bill Kearney" <wkearney99@xxxxxxxxxxx>
Date: Fri, 31 Mar 2006 17:55:16 -0500
Newsgroups: comp.home.automation
References: <0-udnfKMkK-QTLTZnZ2dnUVZ_sKdnZ2d@xxxxxxx> <umrj2257d5qt0b92a2pmee5d5rrujqa9v0@xxxxxxx> <8Iudnf9_Y4TlLbDZnZ2dnUVZ_tSdnZ2d@xxxxxxx>

> I've been thinking that instead of an overlay I can switch the TV's to a
> "house information" channel that's got an RS-232 to videotext input like
> those that Dave pointed me to.  The problem there is knowing which channel
> Dad was watching so I could switch away from it and then switch back once
> the message was delivered.

Don't use the tuner in the TV.  Use a video (composite or s-video) to the TV
and put the overlay in-between at that point.

References:
- Inject text alerts into a CATV system
  - From: Robert Green
- Re: Inject text alerts into a CATV system
  - From: Robert L Bass
- Re: Inject text alerts into a CATV system
  - From: Robert Green

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