[opendtv] Re: ATI equivalent to 5th gen LG?
- From: "Dale Kelly" <dalekelly@xxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Fri, 10 Dec 2004 12:24:33 -0800
John wrote:
> The problem with the ATSC guidelines is that it is very difficult to put
> into words the reception behavior of the Zenith 5th gen chips. As Justice
> Stewart said of obscenity; "I can't define it, but I know it when I see
> it."
> The same for any chipset that works "properly."
No disagreement here, the ATSC document is simply a guideline offering
certain minimum performance suggestions deemed to be helpful for designing a
DTV receiver. It makes no attempt to specify how that task could or should
be done. In the case of multipath performance it offers a number of field
captures for use in developing /testing equalizers, if one chooses to
utilize them. A wide variety of receiver designs ,with widely varying
degrees of performance, could be compliant(wrong word).
The problem that ATI point out is that there is no way for a consumer to
know that a receiver even meets this very minimal performance guideline.
----- Original Message -----
From: "John Shutt" <shuttj@xxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Thursday, December 09, 2004 12:20 PM
Subject: [opendtv] Re: ATI equivalent to 5th gen LG?
> The problem with the ATSC guidelines is that it is very difficult to put
> into words the reception behavior of the Zenith 5th gen chips. As Justice
> Stewart said of obscenity; "I can't define it, but I know it when I see
> it."
> The same for any chipset that works "properly."
>
> John Shutt
>
> ----- Original Message -----
> From: "Dale Kelly" <dalekelly@xxxxxxxxxxx>
>
>> This announcement could be taken by some to imply that by manufacturing
>> "several" of their new digital receiver chips to be compliant with the
>> recently published voluntary ATSC DTV receiver standard, that ATI has
>> constructed a receiver with excellent all round performance. The fact is
>> that the ATSC specification should be recognized as a minimum suggested
>> construction standard and one which will likely perform well in good to
>> moderate RF conditions. My guess would be that such a receiver would
>> likely
>> fall somewhere between 3rd/4th generation performance but I would clearly
>> like to see it tested under 5th Gen test conditions to eliminate such
>> guess
>> work on my part.
>
>
>
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