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- Path: trog.dra.hmg.gb!news
- From: Simon Rogers <Srogers@taz.dra.hmg.gb>
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Multisync <-> VCR
- Date: 15 Feb 1996 14:06:22 GMT
- Organization: Defence Research Agency
- Message-ID: <4fveku$nkc@trog.dra.hmg.gb>
- References: <802.6612T1090T1735@codeworks.gen.nz> <4fmr7t$7tp@news.iesd.auc.dk>
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-
- toje93@kom.auc.dk (thomas o. jensen) wrote:
-
- >According to what I have found out, the composite video signal is basicly the same
- >signal as an RF-signal, BUT! it is not modulated with a carrier frequency (and the
- >sound is not included).
- >
- >In a TV a received RF-signal is "split up" in the tuner - the TV channels are
- >"cut out", and the resulting signal includes lumina, color (chroma) and audio.
- >This signal is the -in the TV- decoded into RGB signals AND an audio signal.
- >
- >Does anyone know if there is a standard IC to do this decoding. (It is not as simple
- >as it sounds).
- >
- >/Thomas
-
- RS & Farnell sell a couple of ICs at about a tenner a piece which convert
- composite into RGB. The problem is the descrete devices also needed and
- the setting up - I don't have video test equipment. I'm trying to find as
- much as possible on-chip but it is complicated as you say. I'm still
- reading up on it and may even be getting slightly out of my depth!
-
- PS Does anybody know if the "sandcastle pulse" is just another name for
- something like the sync pulse or horizontal sync?
-
-
- --
- Simon Rogers
- Srogers@taz.dra.hmg.gb
- The views expressed are not those and all that crap etc. etc.
-
-
-