References: <36C7FAF578DB3B42.2D5D36053AB02069.6012E473C7158C02@lp.airnews.net> <3DD25E3B.1150ECC5@imec.be>
Subject: Re: Storing / Retrieving Video Data with RAM
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Fri, 15 Nov 2002 20:05:35 -0500
NNTP-Posting-Date: Fri, 15 Nov 2002 20:05:56 EST
Organization: Bell Sympatico
Man, what a complex, and or expensive project to make!.
I would suggest instead, using a small CCD camera, and transmitter
combination, that would be received and recorded on the ground. This would
be a simpler, more cost-effective, and most importantly lightweight way to
do this. I have seen camera/transmitter units that are used in spy
applications that are fairly inexpensive, and are no larger than a 9v
"Gary Tait" wrote in message
> On Wed, 13 Nov 2002 09:34:33 -0600, Doug Hortvet
> >Thanks for your reply.
> >I do not know exactly what a framegrabber extension card will / can
> >do, but the system I need must be very compact, light weight and
> >consume minimum power.
> >So far I have determined that DVR's (some, perhaps not all) store the
> >data to a HDD, rather than RAM.
> >The end use for this system is to record live video during a model
> >rocket flight, hence the need for small size and light weight.
> >I envision using a small single board CCD that outputs NTSC,
> >sufficient RAM to store 30-45 sec. of video, and whatever intermediate
> >electronics are required to get the encoded / compressed video data
> >into and out of the RAM.
> >Thanks again for your comments.
> Two suggestions:
> A mini DV camera (my they are small these days, not to sure how Gs
> will affect it though).
> Relay the video signal to ground, and record it there.
> >On Wed, 13 Nov 2002 15:14:19 +0100, Jean-Michel Friedt
> > wrote:
> >>Doug Hortvet wrote:
> >>> My goal is to use a single board CCD that outputs NTSC, encode /
> >>> compress the output data stream to an avi or mpg video file, then
> >>> store in some variety of RAM.
> >>> The video file would then be downloaded to my PC for viewing.
> >>> I was hoping already existing components, not necessarily a complete
> >>> system, would be available to perform the encoding and control the
> >>> storage of data.
> >>Aren't you exactly describing what a framegrabber extension card (PCI
> >>will do for you ?
> >>Jean-Michel FRIEDT