Path: utzoo!dciem!nrcaer!scs!spl1!laidbak!att!pacbell!ames!hc!beta!sct
From: sct@beta.UUCP (Stephen Tenbrink)
Newsgroups: sci.electronics
Subject: Re: frame buffers for digital vcr's
Message-ID: <19772@beta.UUCP>
Date: 2 Jun 88 19:10:52 GMT
Article-I.D.: beta.19772
References: <8805250108.AA15171@jade.berkeley.edu>
Organization: Los Alamos Natl Lab, Los Alamos, N.M.
Lines: 13
Summary: CCD frame buffer?

In article <8805250108.AA15171@jade.berkeley.edu>, SPGDCM@CMSA.BERKELEY.EDU writes:
>  That is, is it the case that a Toshiba or whatever "digital" vcr
>  selling for $400 just happens to have half-a-megabyte of RAM to
>  enable it to freeze a frame? Or do some of these machines have to have
>  a meg or more to store and display one frame with one-half meg while
>  saving up the next frame in another half-meg, to enable clean digital
>  forward search?

Are these VCR's really digital?  It seems a very expensive way to do the frame
buffering for the prices these VCR's sell for.  Could an analog approach be
used instead.  I could conceive of using a Charge Coupled Device (CCD) to grab
frames.  I'm not sure this is what they do but having used frame buffers 
here I know they're not cheap.