[linux-dvb] Re: Remove frequency bending from frontend core

[Rainer Schubert <lintv@dl6hbo.inka.de>]

On Tue, 30 Nov 2004, Patrick Boettcher wrote:

> On Tue, 30 Nov 2004, Michael Hunold wrote:
>
> > currently we have struct dvb_frontend which is basically a container for
> > struct dvb_frontend_data. I'd like to unify these two structs and get rid of
> > the frontend list.
> >
> > This is possible, but currently frequency bending relies on the ability to
> > tell if two frontends are located on the same adapter.
> >
> > IIRC Convergence has used this "feature" for exactly one demonstration board,
> > where two frontends were located side by side and disturbed each other. It's
> > not used by any of the major cards out there.
>
> DiBcom does also have boards with up to 4 demods on it. Each one with a
> separate tuner and they use the diversity feature. I.e. The TS is passed
> through every demod and each one tries to correct packets the ones before
> did not receive correctly.
>
> These boards are sold for mobile usage, because mobile reception is
> not so easy. E.g. in cars. Maybe in the future a car or at least
> the TV part will be controlled by a linux-controlled embedded system or
> so.
>
> Don't know if the mentioned "feature" applies for this kind of usage. But
> if so, please have this in mind. If not, do it :).

Hi, my Pinnacle PCTV Media Center 300i PCI card has got the TDA 9885 as a
demodulator for analogue TV and the MT352 (which I haven't got to work
yet) for DVB-T demodulation.

Regards,
Rainer
-- 
Rainer Schubert - Linux TV User