[mythtv-users] Tivo has Commercial Skip in US

[Mike Chinander]

Don't forget SonicBlue's ReplayTV DVRs also had commercial skipping. I
wonder if Tivo bought any of their technology assets/patents in their
bankruptcy.

On Mon, Oct 12, 2015 at 12:30 PM, Gary Buhrmaster <gary.buhrmaster at gmail.com
> wrote:

> On Mon, Oct 12, 2015 at 4:59 PM, Eric Sharkey <eric at lisaneric.org> wrote:
> .....
> > I'm curious how they do it on a technical level.  They can't do it
> > purely on sending back a cut list based just on the clock, could they?
> >  Variations on local time clocks and broadcaster clocks would skew
> > this enough to be noticeable, I'd expect.
>
> I know there are some patents on the subject (I recall Sony
> got a new one recently, and there are others, which is why
> some 3rd party commercial detection companies tend to
> get into interesting situations).  Just because TiVo tends to
> do so, I expect they either have, or are in process of obtaining,
> patents in the area too (in some years I believe TiVo makes
> more money off their patents then they make in the rest of
> their business).
>
> I can conjecture about a few ways it would work (especially
> for network programming (which is what this is) since the
> networks (mostly) enforce the commercial insert schedules
> so that a time based cut list would be able to provide strong
> hints to the heuristics to be able to adjust for any minor
> variations).  Regardless, I am not going to read all the patents
> and try to figure out which one(s) this solution might be using.
> If someone wants to do that patent research, please do share.
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