If you envision the NTSC spectrum in three-dimensional space, luma is a large, central octahedron. Chroma is smaller octahedra orbiting it. It's only when you look at it in two dimensions that they appear to interfere, just as the moon (or any other satellite) would appear to occupy the same space as the earth when viewed in two dimensions.
TTFN, Mark Dale Kelly wrote:
Must have trimmed down the sideband energy for those frequencies?-----Original Message----- From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx]On Behalf Of Mark Schubin Sent: Saturday, January 13, 2007 11:24 AM To: opendtv@xxxxxxxxxxxxx Subject: [opendtv] Re: News: CEA FORECASTS CONSUMER ELECTRONICS REVENUE Dale Kelly wrote:It can be a lot fancier than that. The CDL Prism modulator, one of the first with full bandwidth, used two dimensional filtering of both luma and chroma to provide un-notched (but also non-interfering) full bandwidth of each.Rather than using a bandpass filter I assume that the newer hardware allowed for notched filtering.TTFN, Mark----------------------------------------------------------------------You can UNSUBSCRIBE from the OpenDTV list in two ways:- Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.----------------------------------------------------------------------You can UNSUBSCRIBE from the OpenDTV list in two ways:- Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.
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