HDTenEightyP/NetNews huggingface dataset:
From: xarjp@levels.unisa.edu.au
Newsgroups: sci.electronics,rec.video.satellite
Subject: Re: VIDEOCRYPT encryption system by Fergusson
Date: 9 Jan 93 09:36:50 +1030
Organization: University of South Australia
NNTP-Posting-Host: sirius.itd.adelaide.edu.au
Originator: daemon@sirius.ucs.adelaide.edu.au

In article <C0B6Fx.74D@cantua.canterbury.ac.nz>, geoffrey@cosc.canterbury.ac.nz (Geoff Thomas) writes:
> 
> Anybody know how the VIDEOCRYPT encryption system works?
> It is manufacted by in the UK by Fergusson Ltd. The
> decoder has a smart card which needs to be inserted into
> it for it to decode the video signals (audio is unscrambled).
> 
> How does it do the encryption? Is it based on wiggling sync
> pulses? Or maybe on jumbling up video scan lines? Or maybe
> something else?
> 
The "scrambling" (not encryption - thats to do with the smart card, user
access etc etc) is a random "line-cut and rotate" technique. Each video
line is randomly cut, the later part is transmitted before the earlier
part (with neat patented extrapolations at the line start, cut-point and
line end so you cant reliably tell where the cut point is), and
reconstructed on reception. The cut-point for each line changes randomly,
hence the "tearing" effect on the screen when scrambled signals are 
displayed directly. Key to the decoder is an ASIC which does most of the
digitizing, random number work, temporary storage etc. 

Fergusson is part of Thomson Consumer Electronics (France) last I knew.
VideoCrypt is owned by Thomson. Other licensees exist. News Data Security
Products Ltd were involved at one time (access control system).

Rob Potter

Newsgroups: sci.electronics
From: heke@stekt.oulu.fi (Heikki Paananen)
Subject: Re: Where to mount an outside temp probe on a car?
Organization: University of Oulu, Dept. of EE, Finland
	<1993Jan4.223650.9171@phx.mcd.mot.com>
	<1993Jan5.050543.28601@cis.ohio-state.edu>
Date: Tue, 5 Jan 1993 08:44:15 GMT

In article <1993Jan5.050543.28601@cis.ohio-state.edu> rubin@clam.cis.ohio-state.edu (Daniel Rubin) writes:

>   Hmmm...  You cannot get the probe any cooler than the temperature of the 
>   air flowing around it no matter how fast the air is flowing!  If anything
>   the friction of the air moving across the sensor would heat it up.  Now if
>   it is wet then the air will aid to evaporate the water on the sensor which
>   takes heat of evaporation from the sensor thereby lowering it's temperature.
>   Dry air flow around the sensor will not provide false readings unless 
>   excessive friction is created!  

Yes, but one should be careful not to put the sensor in a place where
the air flow causes pressure changes. If, for example, air is rapidly
compressed, the pressure rises and the temperature rises due to
constant thermal energy it has (adiabatic prosess). 
If the sensor is uncorrectly placed, it may happen that the indicated
temperature if a function of the speed of the vehicle!

>	 - Dan

Heke

------------------------------------------------------------
Heikki Paananen                           heke@stekt.oulu.fi
The University of Oulu                     
Department of electrical engineering    
Finland
------------------------------------------------------------
               Home is where the heart lies,
            but if the heart lies where is home?
                                           -Fish
From: myers@hpfcso.FC.HP.COM (Bob Myers)
Date: Fri, 8 Jan 1993 19:32:46 GMT
Subject: Re: HDTV Question
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: sci.electronics

> >If HDTV will be digital, what will be the number of available colors for
> >display?
> 
> Depends on the format that is decided on.
> 

Yes, and while this hasn't been determined yet, I am expecting at least
8 bits/color; some have argued for more, but I'm not sure that we'll get them.
(Or, for that matter, need them, at least with presently-forseeable display
technology).

> >Instead of the "infinite" we have with NTSC now, this will have to be reduced,
> >depending on the digitalization, but what are we talking about numbers-wise?
> 
> Infinite colors?  With NTSC?  You have to be joking... the linearity of the
> chrominance signal is terrible on any NTSC systems.  The number of discrete,
> distinguisable colors is far fewer than those that can be seen by the eye,
> or even recorded on a good film.

Absotively!  Actually, even plain old RGB color, without the nasties introduced
by NTSC encoding, isn't by any means capable of "infinite" colors.  The current
computer de facto "standard" of 8 bits/color ("24 bit color") is more than
adequate to meet the capabilities of practically any electronic (i.e., not
film or hard copy) display device.

Sigh.  Looks like another one of those "analog == infinite precision" errors.


Bob Myers  KC0EW   Hewlett-Packard Co.      |Opinions expressed here are not
                   Systems Technology Div.  |those of my employer or any other
myers@fc.hp.com    Fort Collins, Colorado   |sentient life-form on this planet.
From: mark-r@spec0.ee.man.ac.uk (Mark Robinson (JO PhD))
Newsgroups: sci.electronics
Subject: 74HC4046 help required.
Date: 5 Jan 93 13:16:43 GMT
Organization: Dept Electrical and Electronic Eng, Manchester University, UK


Hi all.

If anyone has a datasheet for the 74HC4046 PLL chip handy would
you let me know how the frequency of the VCO is related to the
values of R's and C and the max/min values that they can take.

I want to run it with a lock range of about 1MHz, centred on
8MHz, but the equations in the Maplin catalogue don't allow
frequencies >2.8MHz (R=5k, C=50pF; ie the minimum allowed) even
though they claim the VCO can get up to 15MHz. I think their
data must be for the 4046 and none of our databooks are modern
enough to include the 'HC4046 :-(

Thanks
Mark
mark-r@spec0.ee.man.ac.uk

--
______________________________________________________________________
Multimedia Information Systems Lab | I'm a slug and I'm alright
Dept. Of Electrical Engineering    | That's 'cos I'm hermaphrodite
University of Manchester           | It bothers me not that I have no
Dover St. Manchester. M13 9PL      |                     friends
England                            | 'Cos I have fun with both my ends
Newsgroups: sci.electronics
From: adler@netcom.com (Bruce Adler)
Subject: Where can I get BERG connectors?
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Date: Sat, 9 Jan 1993 00:11:49 GMT

Does anyone have a phone number for BERG, or know of a BERG distributor,
or know where to get an exact replacment for a BERG connector?

I have a ribbon cable which has on one end a 40 pin card edge IDC
connector. I need to make a replacement cable (slightly modified)
but I can't find this connector in any local shops. The connector
for the exising cable has the word "BERG" molded on the side.
I need to get another one of these with exactly
the same dimensions. I assume that BERG is either the name of the
manufacturer or the style of the connector. I checked both the 
Digi-key and Newark catalogs and didn't find anything suitable.

adler@netcom.com
Newsgroups: sci.electronics
From: george@beta.ee.ufl.edu (George L)
Subject: Re: VCR Recording Problems
Date: Thu, 7 Jan 93 08:04:31 GMT

In article <726201631snx@nemesys.demon.co.uk> gvm@nemesys.demon.co.uk (Granville Moore) writes:
>
>In article <78979@hydra.gatech.EDU> np4@prism.gatech.EDU (Nick Pomponio) writes:
>the drum assembly.  4 weeks later (a few days ago) it failed again.  I feel
>rather pessimistic about another head assembly (this seems unlikely to
>work and, even if it does, how long after the guarantee period is it likely
>to last?).

Exactly one day past the warranty expiration date.
>
>I bought Panasonic because of their reputation for reliability, and it was
>an "upgrade" for an 5-year-old Panasonic NV-G12 that has given good service.
>On the whole, I'm not really impressed with the FS90B - it cost twice as
>much (700 UK Pounds - discounted from 850), its ergonomics are poorly
>thought out, performance about the same as the G12 (when new) and it is
>(to say the least) rather unreliable.  Panasonic - here goes your reputation...

A common problem. These days, you can't rely upon a company to maintain a 
standard of quality from one year to the next.
>
>I'll let you know if I get any more information that might be useful to you.
>Meanwhile, if anyone has any suggestions about my machine, to quote the
>immortal words of Spock: "I am all ears"...

Here in the US, that quote now belongs to Ross Perot.
>
>Regards,
>
>Granville
>
From: edharris@ohstpy.mps.ohio-state.edu
Newsgroups: sci.electronics
Subject: Microwave Oven Plasma Etcher?
Date: 5 Jan 93 23:01:25 EST
Organization: The Ohio State University, Department of Physics

I'd like to use a small microwave oven ( will a small vacuum chamber inside) 
to generate reactive plasmas ( O2 etc) for cleaning and etching in our lab. 
The idea sort of works, but even the smallest ovens  (400 Watts or so) 
generate so much heat that they tend to burn samples more than etch them...

Does anyone know how to lower the power output of the magnatron, or is it
possible at all? I'd like to cut the power to 50W or so...

Thanks,
Ed
From: dag@col.hp.com (David Geiser)
Newsgroups: sci.electronics
Subject: Re: Interfacing to a cassette deck
Date: 8 Jan 1993 22:09:30 GMT
Organization: HP Colorado Springs Division
NNTP-Posting-Host: hplsdor.col.hp.com

Three wires are usually for a remote on/off (pause) on a mic.
-- 
To know recursion, you must first know recursion.
--
From: johna@psdcae1.gvg.tek.com (John Abt)
Newsgroups: sci.electronics
Subject: Re: NEED SOLENOID ACTUATED WATER VALVE.....
Date: 10 Jan 93 06:04:24 GMT
Organization: Grass Valley Group, Grass Valley, CA

The washing machine/dishwasher valves are cheap but they do not work
well at low water pressure. I once used a circulating ball valve in
a low pressure application. Basically, they are an in-line ball bearing
with a hole drilled thru it. A small motor with cut-off micro switches
rotates the ball. Works down to 0 psi of course.

John Abt
Newsgroups: sci.electronics
From: cmwolf@mtu.edu (christopher m. wolf)
Subject: Re: HDTV Question
Organization: Michigan Technological University
Date: Mon, 11 Jan 1993 04:57:15 GMT

mrk@gvgspd.gvg.tek.com (Michael R. Kesti) writes:
>In article <1993Jan8.055618.24902@mtu.edu>
>                              cmwolf@mtu.edu (christopher m. wolf) writes:
>
>>If HDTV will be digital, what will be the number of available colors for
>>display?
>>
>I think that Christopher has reached a false conclusion.  Try this analogy:
>
>	If CDs are digital, what are the number of available pitches
>	for playback.
>

I just assumed that the digitalization(sp?) would be handled similar to
that used in computer monitors, which would seem to be more efficient than 
continual digitalization of analog voltage.  I don't know for sure what 
the actual method is going to be, which is why I asked.  Let me expand my 
question once again.

"Have they decided yet on a specific method of transmission for HDTV, 
and if so, what will the format be?"

Of course, I can answer this question.  No.

Lets start over.

What can someone tell me about the technical aspects of HDTV?


Newsgroups: sci.electronics
From: kehoe@netcom.com (Thomas David Kehoe)
Subject: Recommend a book on "Patenting Your Invention"?
Organization: Netcom - Online Communication Services (408 241-9760 guest)
Date: Sun, 10 Jan 1993 00:07:55 GMT

Would someone recommend a book about "How To Patent Your 
Invention"?  There must be several available.

I took Patent Law at the University of Chicago Law School, so I 
know the theory.  I don't know what paperwork you file, how to do 
a patent search, etc.  Luckily I live near Sunnyvale, so I could 
go to the Patent Office there.

And where are those bars we heard about in Patent Law?  You know, 
the Utility Bar, where telephone lineman hang out; the Novelty 
Bar, which has dribble glasses, joy buzzers, and fake vomit; and 
the Non-Obvious Bar, that you walk right past and don't even 
notice?
-- 
"Why my thoughts are my own, when they are in, but when they are out
they are another's." - Susannah Martin, hanged for witchcraft, 1692.
Thomas David Kehoe          kehoe@netcom.com         (408) 354-5926
Newsgroups: sci.electronics
From: cogsdell@mentor.cc.purdue.edu (tony c)
Subject: Re: HELP WANTED: How to add a video output socket to a TV?
Organization: Purdue University Computing Center
Date: Mon, 11 Jan 1993 23:49:38 GMT

In article <1993Jan11.231600.3578@fcom.cc.utah.edu> csw3503@u.cc.utah.edu (Charles Wen) writes:
>


Why don't you just use the VCR's tuner??????????

Take the video feed off TP 12 through a ~47uf cap.
 
Suggestions?

Newsgroups: sci.electronics
From: crisp@ecsvax.uncecs.edu (Russ Crisp)
Subject: Receiver Pre-amps
Organization: UNC Educational Computing Service
Date: Tue, 12 Jan 1993 20:22:08 GMT


Hello.
I'm looking for a good quality low noise figure mast mounted
pre amp for FM broadcast band reception.  Ideally, the unit
should have 20 or more dB gain, with noise of 3 dB or less.
Prefer 300 ohm input, and 75 ohm output.  It would be nice to 
have a tuneable notch filter too, and maybe use GaAs FET's!
Anyone have any ideas one where I could look for something
that fits this description?

Thanks!
Russ Crisp  KA4UXZ
Western Carolina University
From: derbyc@tplrd.tpl.oz.au (Derby Chang)
Subject: Re: New (to me) laser-beam pickup application
Originator: derbyc@sydrd14
Organization: Telectronics Pacing Systems
Date: Wed, 06 Jan 93 01:19:07 GMT


In article <72811@cup.portal.com>, Chris_F_Chiesa@cup.portal.com writes:
|> By now we all (hopefully) know that lasers are used to read signals from
|> CDs and videodiscs, but last weekend while visiting friends over Christmas
|> I heard of a new application for the same (or similar) technology: reading
|> good ol' vinyl records by contactless laser pickup.  Has anyone here heard
|> of this, and can anyone provide any details on HOW it is being done?  This
|> is one of those ideas that, to me, seems obvious in retrospect, and "it's
|> a wonder nobody thought of it sooner."
|> 
|> Chris Chiesa
|>   Chris_F_Chiesa@cup.portal.com

Early in 1991, a company in the US called Carillion released a vinyl disc
with laser pickup machine called the Finial.  The company when bust, and
were bought out (this company's name escapes me at the moment).  The Finial
re-appeared at the Las Vegas CES show early last year.  If you're thinking
of buying one, they're asking $USD35,000 for a player with 33 1/3, 45 and 78
speeds, or just $USD25,000 for the 33 1/3 and 45rpm model.

There is a major problem with this machine though, in that a normal stylus
will push dust away from the grooves as it plays, but with the laser, you hear
every snap crackle and pop.  Definitely a machine for fanatics.  But for 
analogue freaks, they will be comforted to know that there is no digitisation
anywhere in the machine.

+------------------------------------------------------------------------+
|  Derby Chang			| Lander: "I offered you everything,     |
|  Telectronics Pacing Systems	|          even the copyright to         |
|  Sydney, Australia            |          `Stairway to Heaven'"     	 |
|  (Tel): 0011-61-2-413-6940    | 					 |	
|  derbyc@tplrd.tpl.OZ.AU	|		  `Chances'              |
|                               |                                        |
+------------------------------------------------------------------------+                 
Newsgroups: sci.electronics
From: schuster@panix.com (Michael Schuster)
Subject: Re: How can I align a cassette tape head?
Organization: Panix Public Access Internet & Unix, NYC
Date: Mon, 4 Jan 1993 13:49:30 GMT

In article <C0AMDI.3Ey@ve7frg.ampr.org> george@ve7frg.ampr.org (George Farris) writes:
>
>Is there any alignment tapes available that one can view with a scope an
>align the tape heads?  How is this done these days?

You need a full-track test tape of 8-12 KHz tone recorded at -10 dB.
The TEAC MTT-114N, which is the standard tape used by many Japanese
manufacturers, is available for about $35 from their parts division.

Connect each channel to one channel of your scope, and adjust the
azimuth screw on the tape head for maximum amplitude with respect
to phase.



-- 
_______________________________Mike Schuster________________________________
NY Pub. Access UNIX/Internet: schuster@panix.com | 70346.1745@CompuServe.COM
The Portal (R) System: schuster@shell.portal.com | MCI Mail,GEnie: MSCHUSTER
From: geb@cs.pitt.edu (Gordon Banks)
Newsgroups: sci.med
Subject: Re: Swallowing difficulties
Date: 7 Jan 93 16:01:25 GMT
Reply-To: geb@cs.pitt.edu (Gordon Banks)
Organization: Univ. of Pittsburgh Computer Science

In article <45063@ucbvax.BERKELEY.EDU> tlin@eeyore.Berkeley.EDU (Tony Lin) writes:

>SUMMARY:  Looking for information regarding inability to swallow in a 6 
>	  month old infant who was born 6/92 with a mild sacral spina bifida 
>	  with an associated Arnold Chiari malformation.

The only thing that comes to mind other than a structural problem
is infantile botulism.  They hadn't fed her any honey in her formula
had they?

-- 
----------------------------------------------------------------------------
Gordon Banks  N3JXP      | "I have given you an argument; I am not obliged
geb@cadre.dsl.pitt.edu   |  to supply you with an understanding." -S.Johnson
----------------------------------------------------------------------------
From: oispeggy@ubvmsd.cc.buffalo.edu (Peggy Brown)
Newsgroups: sci.med
Subject: Re: Looking for info on abortifacents
Date: 8 Jan 93 19:14:00 GMT
Followup-To: sci.med
Organization: University at Buffalo
News-Software: VAX/VMS VNEWS 1.41

In article <1993Jan8.183821.9039@henson.cc.wwu.edu>, n9020351@henson.cc.wwu.edu (James Douglas Del-Vecchio) writes...
>dart@symphony.cc.purdue.edu (Dartanyan) writes:
> 
>>	I need any possible information about publicly available abortifacents
>>(miscarriage-inducing substances).  Both chemical and herbal substances are
>>of extreme interest at this point.  Any information you can give would be
>>most helpful.  Feel free to reply via email.
> 
>>	No jokes or flames, please.  This is a situation in which the
>>choice lies between the death of a fetus and the death of my wife.
>>	Thank You.
>>						Sean Cannon
> 
>	Did it ever occur to you that the situation might be important
>enough to merit going to a doctor?  Abortion is legal in the US you know,
>especialy if the situation is how you describe.
> 
>Jim Del Vecchio

Going to a doctor is probably a lot safer than guzzling down a 
lot of herbs some possibly misinformed person said to try.

- Peggy -
Newsgroups: sci.med,alt.self-improve
From: brasie@mitre.org (ruth ann Brasie)
Subject: Re: The senses
Organization: Mitre
Date: Mon, 4 Jan 1993 21:02:38 GMT

In article <1992Dec29.155759.3575@linus.mitre.org>, m23364@mwunix (James
Meritt) writes:
> 
> 
> How can I improve my senses?  There seem to be many ways to make them worse
> (a poke in the eye with a sharp stick, for instance! ;-), so it seems not
> unreasonable that there should be ways to improve them - or at least their
> functioning.
> 
> Thanks.
> 
> 
> --
> James W. Meritt:  m23364@mwunix.mitre.org - or - jmeritt@mitre.org
> The opinions above are mine.  If anyone else wants to share them, fine.
> They may say so if they wish. The facts "belong" to noone and simply are.
> 
> 
Hmmm...mindfulness.  I find that I do not hear when I am not really
listening, do not see when I am not really looking.  Perhaps this is the
key.
Xref: sparky sci.med:23702 misc.health.alternative:436
From: abulloch@garnet.berkeley.edu (Anthony Bulloch)
Newsgroups: sci.med,misc.health.alternative
Subject: Re: Minoxidil and Hair loss
Date: 9 Jan 1993 22:21:50 GMT
Organization: University of California, Berkeley
NNTP-Posting-Host: garnet.berkeley.edu

(Since Steve Dyer posted an informative note on the way minoxidil
works):

Steve -   is my memory playing me false or did I read a report
a while back that rogaine may be linked to some nasty side-effects
for some users?

Anthony Bulloch

Xref: sparky sci.med:23844 soc.motss:56267
From: geb@cs.pitt.edu (Gordon Banks)
Newsgroups: sci.med,soc.motss
Subject: Re: Baby with no father
Date: 12 Jan 93 20:44:50 GMT
Reply-To: geb@cs.pitt.edu (Gordon Banks)
Followup-To: sci.med
Organization: Univ. of Pittsburgh Computer Science

In article <1ieua7INNfoi@transfer.stratus.com> pfieland@citron.sw.stratus.com (Peggy Fieland) writes:
>A group of us were shooting the breeze over coffee last night when
>two of the women announced they were planning to have a baby next
>year.  After the usual good wishes, someone mentioned she had
>heard that a clinic in Australia was combining two (human) eggs
>in vitro using the enzyme hyaluronidase, enabling two women to
>have a baby together, ie, two mothers and no father.
>
>Is this true or only a rumor?  Any and all details will be gratefully
>appreciated.
>

It is theoretically possible for two males, two females, one male,
one female (although in the latter two cases, the baby will be a clone)
to produce a baby through technology.  In fact, with genetic surgery,
you could have 3 or more parents.  So far, I don't think it has ever
been done, and I haven't heard of this clinic in Australia.  There
would be some real ethical questions to answer about such practices.



-- 
----------------------------------------------------------------------------
Gordon Banks  N3JXP      | "I have given you an argument; I am not obliged
geb@cadre.dsl.pitt.edu   |  to supply you with an understanding." -S.Johnson
----------------------------------------------------------------------------
From: geb@cs.pitt.edu (Gordon Banks)
Newsgroups: sci.med
Subject: Re: Adiposity 101
Date: 4 Jan 93 15:20:11 GMT
Reply-To: geb@cs.pitt.edu (Gordon Banks)
Organization: Univ. of Pittsburgh Computer Science

In article <1992Dec28.013341.8122@spdcc.com> dyer@spdcc.com (Steve Dyer) writes:
>
>I can use myself as an example.  I refuse to shop around, because it's
>demeaning and demoralizing, especially given that I know more about the
>drugs and their legitimate indications than the doctor I'd be talking to.
>I'll be damned if I'll put myself in the presumed role of drug-abuser simply
>because I think I'd benefit from such a trial.  I suppose some people are
>single-minded enough to try; at this point, I'd rather not bother.  A long
>while ago (say, 10 years or so), I asked my HMO doc about a prescription for
>fenfluramine; after a few minutes of his perusing the PDR (he'd never heard
>of it before), he refused, and referred me to the HMO's nutritionist, who had
>sample-size portions of Jello and mashed potatoes on her desk to educate
>me on eating properly.  Arrggggggggggggh!  I'm surprised more obese
>individuals aren't more disposed to murder.
>
Steve, you need to use your network for something like this.  For example,
if you lived in PA, I would be able to prescribe these for you.  If they
were legal in Massachusetts, I'm sure you would find someone to help
you without "shopping around".  

>When I get frustrated like this, I have to wonder who actually IS prescribing
>this drug; it wouldn't stay on the market if it wasn't being prescribed.
>

There are places called "Bariatric Centers" that prescribe these
regularly, I believe.








-- 
----------------------------------------------------------------------------
Gordon Banks  N3JXP      | "I have given you an argument; I am not obliged
geb@cadre.dsl.pitt.edu   |  to supply you with an understanding." -S.Johnson
----------------------------------------------------------------------------
Newsgroups: sci.med
From: drwolff@leland.Stanford.EDU (Don Robert Wolff)
Subject: cdc address
Organization: DSG, Stanford University, CA 94305, USA
Date: Wed, 6 Jan 93 07:07:59 GMT


Hello everybody,

sorry to bother you, but I've been trying to locate the host at the
Centers for Disease Control (CDC) in Atlanta. If anyone is connecting
from the CDC, could you please get in touch with me thru e-mail
(drwolff@leland.stanford.edu). 

I'm trying to track down Ben Schwartz in Epidemiology and Robert Facklam
and I'm not sure where he is, but I think they might both be in rheumatic
heart disease.

thanks for the help.

Don

drwolff@leland.stanford.edu