USB on DirectTV

[Guest]

Archived from groups: alt.video.ptv.tivo (More info?)

On Thu, 14 Jul 2005 17:26:10 GMT, JOSEPH PERRY wrote:

> The only thing better than S-Video is Component. The rating from best to
> worst for all video sources is cable, composite, s-video and component.
> Component is a 3 cable video source dividing red, green and blue.

The cables are marked Red, Green, and Blue, so perhaps that led you to
think that was what they carried. It is a common misunderstanding. As was
detailed already, that is incorrect.

Brad H

 

[Gman]

Archived from groups: alt.video.ptv.tivo (More info?)

In article <db68mr$thg$1@spnode25.nerdc.ufl.edu>, "Randy S." <rswitt@nospam.com> wrote:
>JOSEPH PERRY wrote:
>> The only thing better than S-Video is Component. The rating from best to
>> worst for all video sources is cable, composite, s-video and component.
>
>That's true if you make the assumption that *all else is equal*.
>Different sources may use different comb filters, upconverts, etc. But
>in general the better quality connection types will use at least as good
>processes and parts as the lower quality connection types, so that
>assumption is a pretty good one.
>
>> Component is a 3 cable video source dividing red, green and blue.
>
>Sorry, that is incorrect, I could write it out, but I have a nice
>pre-written passage handy ;-)
>
>"Component video consists of three signals. The first is the luminance
>signal, which indicates brightness or black & white information that is
>contained in the original RGB signal. It is referred to as the "Y"
>component. The second and third signals are called "color difference"
>signals which indicate how much blue and red there is relative to
>luminance. The blue component is "B-Y" and the red component is "R-Y".
>The color difference signals are mathematical derivatives of the RGB signal.
>
>Green doesn't need to be transmitted as a separate signal since it can
>be inferred from the "Y, B-Y, R-Y" combination. The display device knows
>how bright the image is from the Y component, and since it knows how
>much is blue and red, it figures the rest must be green so it fills it in."
>
>Randy S.
Great explanation, THANKS!!!

 

[Guest]

Archived from groups: alt.video.ptv.tivo (More info?)

>>"Component video consists of three signals. The first is the luminance
>>signal, which indicates brightness or black & white information that is
>>contained in the original RGB signal. It is referred to as the "Y"
>>component. The second and third signals are called "color difference"
>>signals which indicate how much blue and red there is relative to
>>luminance. The blue component is "B-Y" and the red component is "R-Y".
>>The color difference signals are mathematical derivatives of the RGB signal.
>>
>>Green doesn't need to be transmitted as a separate signal since it can
>>be inferred from the "Y, B-Y, R-Y" combination. The display device knows
>>how bright the image is from the Y component, and since it knows how
>>much is blue and red, it figures the rest must be green so it fills it in."
>>
>>Randy S.
>
> Great explanation, THANKS!!!

That comes from an article here:

http/www.projectorcentral.com/component.htm

which also includes a nice explanation of composite and s-video
connections, as well as progressive vs. interlaced. I like its easy to
understand explanations.

Randy S.

 

[Guest]

Archived from groups: alt.video.ptv.tivo (More info?)

That is why. I appreciate your explanation.

--
JOSEPH PERRY
Ham Radio is an outdoorsman's best friend.
"Brad Houser" <bradDOThouser@intel.com> wrote in message
news:1hxonlcqpgmdz.1p2j4lh5cs5na$.dlg@40tude.net...
> On Thu, 14 Jul 2005 17:26:10 GMT, JOSEPH PERRY wrote:
>
>> The only thing better than S-Video is Component. The rating from best to
>> worst for all video sources is cable, composite, s-video and component.
>> Component is a 3 cable video source dividing red, green and blue.
>
> The cables are marked Red, Green, and Blue, so perhaps that led you to
> think that was what they carried. It is a common misunderstanding. As was
> detailed already, that is incorrect.
>
> Brad H