Alt-BEAM Archive

Message #11150



To: beam@sgiblab.sgi.com
From: Dennison Bertram
Date: Tue, 29 Feb 2000 16:28:37 -0800
Subject: RE: Hey! What's this thingy?




um, thats a negatory on that one. Whatever your trying to do though,
probably isn't worth it. Chips like that are so specialized if anything its
a small microprocessor which is already permanatly programed for a specific
task. If your really interested in vision look at some other ideas, like the
earlier thread between me and wilf about using video cameras in BEAM.

dennison
I took this chip out of an old feed-through scanner that I had laying
around. I can't find a datasheet at NEC for it. This is what it looks like
on the bottom of the chip.

NEC Japan

D3734CY-1
9528KD011

Any of you old-timers out have a heads up on this? I'd like to use it
as a form of vision.

Richard


content-transfer-encoding: quoted-printable



>

oma>
class=3D100221600-01032000>O e=3D2>
color=3D#0000ff>[Denn=
ison =

Bertram] 
color=3D#0000ff>
class=3D100221600-01032000>

<=
FONT =

color=3D#0000ff>
class=3D100221600-01032000> 

<=
FONT =

color=3D#0000ff>Oh, o=
k. I know =

what your talking about. Yes it's a CCD element, a linear one. The =

scanner forms an image of the page by taking a 'snapshot' everytime the w=
heel =

encoders 'tick'. Anyway, you'll still probably have just as muc=
h =

trouble with it. Although it MIGHT be easiyer to use, but unless the=
re =

are as many ouput pins as there are CCD elements your going to =
have =

to do some demultiplexing or a trick simmilar to decode the =

information. Otherwise, I have no idea where you would get tech spec=
s on =

the chip. Breadboard something up and fool around if your really interest=
ed. =

You can find which leads are power by tracing the power strips and G=
round =

plane from the circuit board it's attached to. Or reattaching the =

entire scanner and measuring the leads on the board to see what=
s =

up.

<=
FONT =

color=3D#0000ff>
class=3D100221600-01032000> 

<=
FONT =

color=3D#0000ff>
class=3D100221600-01032000>dennison 

NT>
A processor it ain't!  It=
looks =

like some sort of CCD thingy, but with a single linear element instead of=
a =

matrix.  I'll try to get some pix of it.  The mirrors in the sc=
anner =

focus the light from the lightbar onto this chip. 

 

The chip measures 1.725" X 0.3=
50" and =

is 24 pin.  It has a window on the top that runs nearly the whole le=
ngth =

of the chip.  There's also one on the underside of the chip.<=
/DIV>
 

Any help would be appreciated.=
  =

BTW, "old-timer" is a compliment, not a derisive term.  As an =

electrician, oftentimes the "old-timers" have little tricks that help you=
=

perform your job more efficiently.

 

Richard


style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
----- Original Message -----


style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">F=
rom: =

Dennison=
=

Bertram

To:
href=3D"mailto:beam@sgiblab.sgi.com" =

title=3Dbeam@sgiblab.sgi.com>beam@sgiblab.sgi.com

Sent: Tuesday, February 29, 2000=
4:00 =

PM

Subject: RE: Hey! What's this =

thingy?



 


class=3D840495520-29022000>um, thats a negatory on that one. Whatever y=
our =

trying to do though, probably isn't worth it. Chips like that are so =

specialized if anything its a small microprocessor which is already =

permanatly programed for a specific task. If your really interested in =

vision look at some other ideas, like the earlier thread between me and=
wilf =

about using video cameras in BEAM.


class=3D840495520-29022000> 


class=3D840495520-29022000>dennison


I took this chip out of an old feed-through scann=
er that =

I had laying around.  I can't find a datasheet at NEC for it.&nb=
sp; =

This is what it looks like on the bottom of the chip.

 

NEC Japan

 

D3734CY-1

9528KD011

 

Any of you old-timers out have a heads up on this=
?  =

I'd like to use it as a form of vision.

 


size=3D2>Richard




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