HDTenEightyP/NetNews huggingface dataset:
From: dakos@oucsace.cs.ohiou.edu (Dennis Akos)
Newsgroups: comp.dsp
Subject: Need 100 kSa, 16+ bit A/D converter, any suggestions?
Keywords: a/d, dsp
Date: 7 Jan 93 19:17:19 GMT
Organization: Ohio University C.S. Dept, Athens


Hello all,

	I'm looking for some suggestions. I current project I'm working
on needs an A/D which can do 100 kSa/sec with at least 16 bit linear
resolution (more would be nice). An external ref and calibration is
necessary so that I can use eight of these for eight different channels.
Right now, I'm looking at the Maxim MAX195 which hasn't been released yet.
If anyone has any other idea, please send me e-mail. If anyone is also
interested, let me know as I will be glad to pass it along.

Thanks!


-- 
  -----------------------------------------------------------------------
  | Dennis M. Akos  |  dakos@oucsace.cs.ohiou.edu  |  Ohio University   |
  -----------------------------------------------------------------------
 
Xref: sparky comp.dsp:2931 news.answers:4985
From: warner@nova.etdesg.trw.com (Jeff Warner)
Subject: Re: Resampling methods
Organization: TRW, Inc., Redondo Beach...
Date: 11 Jan 93 14:10:09

    In article <C0nn9C.o5@lila.com> dorsey@lila.com (Bill Dorsey) writes:
       I have a signal which is sampled at F1 hertz which I want to resample
       at F2 hertz.  Neither F1 nor F2 divide each other evenly.  Are there
       any methods which can be used to resample F1 directly (e.g. not first
       transform it into some other domain)?


   You might try using Interpolating FIR filters.
   Basically you stuff zero's between the time samples you already have, and thus
   converting your sample rate to F1*F2, (if possible divided by the Greatest
   Common Divisor of f1 and f2) filter this signal with the Interpolating FIR
   filter, and then decimate the sample rate with another FIR-filter to obtain
   a rate at F2.
   Note that the interpolating filter runs at the higher speed F1*F2/GCD(f1,f2)
   and the decimation filter at the speed F2.

   There is some info in:
	   Digital Signal Processing
	   From Roberts, Clifford and Mullis
	   Addison Wesley Publishing Company
	   page 447-449

   Good Luck,

   Andre Nieuwland

It is not necessary to run the any filter at f1*f2 rate, see the
following reference from the FAQ.  Half of your device runs at f1, the
other at f2, with a double buffer in between.

R. E. Crochiere & L. R. Rabiner, "Multirate Digital Signal Processing",
Prentice-Hall, 1983, ISBN 0136051626.
This book is the only real reference for filter banks and multirate
systems, as opposed to being a tutorial.


Jeff Warner
Newsgroups: comp.dsp
From: DSPWorld@world.std.com (Amnon Aliphas)
Subject: EE Times/EW News - DSP Associates FORM PARTNERSHIP IN DSP
Organization: The World Public Access UNIX, Brookline, MA
Date: Fri, 8 Jan 1993 22:41:13 GMT

PRESS RELEASE

						For Release P.M.
						January 11, 1993


	DSP ASSOCIATES - ELECTRONIC ENGINEERING TIMES/ELECTRONIC WORLD NEWS
	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	FORM PARTNERSHIP IN DSP
	~~~~~~~~~~~~~~~~~~~~~~~

	 Manhasset NY, January 8, 1993. DSP Associates and EET/EWN announced
	today the formation of a joint effort to promote the use of Digital
	Signal Processing Technology in the industry, and issued a "CALL FOR
	PAPERS" for the Fourth "International Conference on Signal Processing
	Applications and Technology" and a "Call for DSP Applications" for DSP
	World Expo.
	
	 Sponsored by DSP Associates and EET/EWN, the "International Conference
	on Signal Processing Applications & Technology" (ICSPAT) and DSP World
	Expo., are scheduled to take place Sept. 28 - Oct. 1, 1993 in the San
	Francisco Bay Area.

	 Since 1990 (The First Conference & Expo., held in Brussels, Belgium)
	the conference became the first industry-oriented "hands-on" DSP
	conference, targetted to the industry.  In the past three years, the
	conference and trade show have experienced an annual growth rate
	of over 100% in both attendance, papers and number of exhibitors.
	With the addition of EET/EWN as co-sponsors of the conference, this
	year's conference promises an even larger growth.

	Last year's conference (Boston '92) attracted over 300 papers (out of
	which 186 were selected), 740 attendees and 55 exhibiting companies.
	The conference is a truly international event attracting over 40% of
	the papers from the international DSP community (industry & academia)
	from over 35 countries worldwide. DSP World Expo. is both a trade show
	and an exhibit, displaying DSP based products as well as DSP 
	applications presented during the conference.   A large number of
	papers, panel sessions as well as tutorials, workshops will be offered
	in this year's event.

	 The "Industry Technology Forum" is designed to showcase new products
	and industrial developments presented by the DSP industry.

	 As the countdown to ICSPAT and DSP World Expo. begins, EET/EWN will
	schedule special DSP issues of their publications to appear early this
	year.

	For additional information, please contact:


	Pamela Coneeny
	DSP Associates
	Tel: (617) 964-3817 or (617) 964-3195
	Fax: (617) 969-6689

	e_mail address:   DSPWorld@world.std.com
Newsgroups: comp.dsp
From: klank@fox.nstn.ns.ca (Karen Lank)
Subject: modelling AM receivers
Keywords: AM receivers
Organization: NSTN Network Operations Centre, Nova Scotia, Canada
Distribution: comp.dsp
Date: Thu, 7 Jan 1993 13:51:06 GMT

[My apologies, this is the second posting -- but I really would like
 some information.]

Hello, 

I am looking for some information on commercial AM receivers to aid in a
research project currently underway at Applied Microelectronics Institute.

Any information on where I might obtain a description of commercial AM 
demodulation algorithms or, ideally,  some emulation software would be greatly 
appreciated.  Automatic gain control modelling would be of particular
interest. 

Thanks,
Karen Lank.

Newsgroups: comp.dsp
From: stettbac@isi.ethz.ch (Daniel Mueller)
Subject: Dr. Bub address
Organization: Swiss Federal Institute of Technology (ETH), Zurich, CH
X-Newsreader: TIN [version 1.1 PL8]
Date: Wed, 6 Jan 1993 09:42:34 GMT


Hello world

How can I reach Dr. Bub information if I have no modem?
Thanks for any suggestions.

juerg at ethz switzerland
From: cmh@eng.cam.ac.uk (C.M. Hicks)
Newsgroups: comp.dsp
Subject: Re: Pitch shifting
Date: 6 Jan 93 17:45:58 GMT
Organization: cam.eng

herman@nosc.mil (John W. Herman) writes:

>cmh@eng.cam.ac.uk (C.M. Hicks) writes:

>>mikael@terapin.com (Mikael Andersson) writes:

>> - FFT, scale frequency, IFFT.
>>   Main problems: discontinuities at block boundaries, computational load.

>Windowing the input function with a Hann window, shifting only half the
>FFT length, and adding the appropriate outputs of the IFFT will produce
>fairly smooth output time series.  But likely not in real time.

Yeah, this is basically what I had in mind, with a block length of around
10 to 50 milliseconds (maybe 1024 CD samples, roughly 20ms). My fear is that
it may introduce a modulation at either one or two times the block frequency.
Real-time should be possible with a DSP with some clout.

Christopher Hicks

--
 ==============================================================================
 Christopher Hicks    |    If it doesn't fit...
 cmh@uk.ac.cam.eng    |                        ...you need a bigger hammer.
 ==============================================================================
Newsgroups: comp.dsp
From: chuckc@sr.hp.com (Chuck Corley)
Subject: Anyone know how to get info on 'Helios'?
Date: Thu, 7 Jan 1993 20:48:23 GMT
Organization: HP Santa Rosa, CA
X-Newsreader: TIN [version 1.1.4 PL6]


        I'm trying to get information on the 'Helios' operating system
for DSP processors.  The phone and fax numbers for Perihelion Software
listed in a previous posting (and attached below) don't seem to work
from my site (or I'm making a dialing or other error which I've so
far been unable to resolve).

	Does anyone have a fax number or email address where I can
request information from?

	Thanks.
                                             Chuck Corley
                                             x7-4237


> Helios' (for distributed parallel processing) is available from:
> 
>    Perihelion Software Limited              Phone:     (44) (0) 373-344345
>    The Maltings                             Fax:       (44) (0) 373-344977
>    Charlton Road, Shpeton Mallet
>    Somerset, United Kingdom  BA4 5QE

From my US phone I tried dialing their fax as shown:  011 44 373 344977

I'm told the (0) in the number is only for in-country UK long-distance
dialing.
Newsgroups: comp.dsp
From: haneypj@ucunix.san.uc.edu (Philip J. Haney)
Subject: Noise Cancellation Sources
Organization: University of Cincinnati
Date: Thu, 7 Jan 1993 03:20:16 GMT


Hello,

I was wondering if anyone could reference me to some classic fundamental
sources/papers related to noise cancellation.  Any replies would be very
much appreciated.  Thanks in advance.

============================================================================
| Philip J. Haney (haneypj@ucunix.san.uc.edu)  "It doesn't matter whether  |
| University of Cincinnati                      you win or lose, just so   |
| Dept. of Elect. & Comp. Eng.                  long as you look good."    |
| Cincinnati, Ohio 45221-0030                                     D.L.R.   |
============================================================================
Newsgroups: comp.dsp
From: jeff@dsp.sps.mot.com (Jeff Enderwick)
Subject: SPARC too (was: Motorola's gcc diffs?)
Organization: Motorola DSP Compilers
	<JEFF.92Dec31092357@dsp.sps.mot.com> <C05qK8.G5q@marina.prug.or.jp>
Date: 4 Jan 93 08:58:27


>In regarding to Motorola BR526/D (1987) and BR541/D (1988);
>	There is only for SUN-3 (DSP56000CLASC or DSP56KCCC).
>Is the package for SUN-4 platform available?

The SUN-4 part numbers are DSP56000CLASF and DSP56KCCF.

	Jeff Enderwick
	jeff@dsp.sps.mot.com
Newsgroups: comp.dsp
From: herman@nosc.mil (John W. Herman)
Subject: Re: Pitch shifting
Organization: Naval Ocean Systems Center, San Diego, CA
Date: Tue, 5 Jan 1993 21:28:28 GMT

cmh@eng.cam.ac.uk (C.M. Hicks) writes:

>mikael@terapin.com (Mikael Andersson) writes:

*** Stuff deleted ***

> - FFT, scale frequency, IFFT.
>   Main problems: discontinuities at block boundaries, computational load.

Windowing the input function with a Hann window, shifting only half the
FFT length, and adding the appropriate outputs of the IFFT will produce
fairly smooth output time series.  But likely not in real time.

*** Stuff deleted ***
Via: uk.ac.leeds.scs; Wed, 6 Jan 1993 11:22:22 +0000
Distribution: world
X-News-Gateway: NewsGateway@phaze.UUCP (NewsGateway 1.0 by Pierre Rioux)
Date: Wed, 6 Jan 93 11:23:32 GMT
Newsgroups: comp.dsp
Organization: The University of Leeds, School of Computer Studies
From: ross-c@scs.leeds.ac.uk
To: usenet@phaze.cam.org
Cc: 
Subject: Re: Pitch shifting

mikael@terapin.com (Mikael Andersson) writes:

>Was ther any results on the Pitch-shifting discussion in this conference?
>Are there any shortcuts or do i have to use FFT to change it? (And still
>keep the quality?)

At least two programmes have come out of the discussion (one newly written, one
was previous research that was made available). Mine is real-time, and based
on a ring buffer as suggested by someone in this group. It requires a
Silicon Graphics Indigo to run (and X/Motif to compile). Ben Cox also
made a programme of his available, which works file->file rather than 
realtime (and hence is not restricted to one particular set of sound hardware).

Both sound good with small pitch-shifts, but start sounding strange with
larger ones.

I'm thinking of using some of Ben's technology to improve mine, but it's 
still on my "list of things to do".

Cheers,

Ross-c
From: fh8n@uvacs.cs.Virginia.EDU (Frank Houston)
Newsgroups: comp.dsp
Subject: Price Range Of DSP
Date: 6 Jan 93 13:35:16 GMT
Distribution: usa
Organization: University of Virginia Computer Science Department
Originator: fh8n@jade.cs.Virginia.EDU


	Hello DSP land

	I am doing my phd in compiler work here at UVA. Does anyone know
the current prices Ti 320c33 , 21020, National Semi 64 Bit Chip.
Etc, I am most interested in the cheapest highest performance chip.

Thanx for any help

Frank Houston ( ThE MaD HaCkEr )
-- 
											 Frank Houston 
    								     |   University of Virginia
VOICE   : (804)982-2294                  |   Thornton / Comp Sci
Internet: fh8n@opal.cs.virginia.edu      |   Charlottesville Va 22901
Newsgroups: comp.dsp
From: ieecjk@ccunix.ccu.edu.tw (Dr. C.J. Kuo)
Subject: EE faculty position in Taiwan
Organization: National Chung Cheng University, Taiwan, R.O.C.
X-Newsreader: TIN [version 1.1 PL6]
Date: Tue, 12 Jan 1993 02:46:35 GMT


Department of Electrical Engineering
National Chung Cheng University
Chiayi, Taiwan, R.O.C.


    The Department of Electrical Engineering, National Chung Cheng
University, Chiayi, Taiwan, ROC invites applications for faculty
positions at the Associate Professor and Professor levels.  Appointment
will be in the following areas: 

    1. Electrical machinery
    2. IC design (prefer experiences with communication ICs)
    3. Signal processing
    4. Computer architecture
    5. Intergrated optics
    6. Medical imaging
    7. Artificial intelligence
    8. Communication networks (prefer experiences with ATM)


    Only four vacancies are open and will be filled with four strongest
candidates submitting applications.  The candidate must have a Ph.D.
degree in a relevant discipline from a accredited university and must
have demonstrated academic potentials.  Faculty at NCCU are expected to
teach both undergraduate and graduate courses and conduct research.
NCCU is located in the southern part of Taiwan and have a spacious
(total area: 133 hectares) and scenic campus.  We are young and growing.
Currently we offer B.S. and M.S. degrees.  Starting with Fall Semester
1993, we will also offer Ph.D. programs. 


    Both accomplished scholar and new Ph.D. are welcome to apply.
Please send your resume, a 500 word autobiography including your goals
at NCCU, indications of two subjects, one each for undergraduate and
graduate curricula, that you wish to teach, and three references to 

    Dr. Thomas T. Fang, Head
    Department of Electrical Engineering
    National Chung Cheng University
    Chiayi, Taiwan 62107
    R.O.C.

Applications received by Mar. 1, 1993 will be screened by Mar. 5 for
the first list of finalists.  Applications received after Mar. 1 will
be considered if not enough strong candidates have filed applications by
then.
From: usoderberg@sysinno.se (Ulf Soderberg)
Newsgroups: comp.dsp
Subject: Filter Design
Date: 8 Jan 93 09:08:02 GMT
Reply-To: usoderberg@sysinno.se
Organization: System Innovation AB


In article <1993Jan7.201803.1@vaxa.strath.ac.uk> cnbs43@vaxa.strath.ac.uk writes:

 > 
 > Dear All,
 > 
 > I'm looking for the source code for the Remez Exchange algorithm.
 > I assume it is in fortran. Or for any other public domain filter design
 > code. Any help appreciated.
 > 
 > 
 > Stuart McGarrity,
 > 
 > University of Strathclyde,
 > Glasgow
 > 
Call the EDN magazine bulletin board (617) 558-4241. There you can download
Remez in C. I don't remember the file name though, I have a directory listing
somwhere but I can't find it right now.

Ulf Soderberg                                 Telephone: +46 8 6300630
usoderberg@sysinno.se                               Fax: +46 8 6300639
                                                Address: System Innovation AB
                                                         Polygonvagen 53-55
                                                         PO.Box 7105
                                                         S183 07 Taby
                                                         SWEDEN
Newsgroups: comp.dsp
From: bbs.forte@tsoft.net (Steve Salani)
Subject: Re: Imaginary Filters
Organization: The TSoft BBS and Public Access Unix, +1 415 969 8238
Date: Tue, 12 Jan 1993 02:35:02 GMT

880840m@axe.acadiau.ca (MICHAEL ALEXANDER MCKAY) writes:

> Think of an input signal as the sum of the real components of many phasors, 
> one phasor per harmonic in the signal.
> 

Actually a real sinusoid is composed of two complex exponentials,
which are complex conjugates, therefore the sum is real.


--
Steve Salani (bbs.forte@tsoft.net)
Newsgroups: comp.dsp
From: sb6932560@v9000 (ELVIS)
Subject: TAUGHT MASTERS IN UK ( SIGNAL PROCESSING )
News-Software: VAX/VMS VNEWS 1.41    
Organization: Nanyang Technological University - Singapore
Date: Tue, 5 Jan 1993 08:30:00 GMT

Can anybody tell me which university(s) offer DSP as
taught Masters un U.K.

PanWei
sb6932560@ntuvax.ntu.ac.sg

HAPPY NEW YEAR ( BELATED )

Newsgroups: comp.dsp
From: tschneid@uwovax.uwo.ca
Subject: Death of TMS340 series ????
Organization: University of Western Ont, London
Date: Tue, 12 Jan 1993 20:28:34 GMT

In article <930112112758@rgam.sc.ti.com>, 4389750@mcimail.com  (TMS320 Hotline) writes:
> John Knutson at UT Austin writes:

 [stuff on TMS32020 deleted]

>> I remember someone requesting info a while back on the 340
>>   graphics processor series.  Is that information still available
>>   anywhere?
> 
> While not technically a DSP, I do have some info on it.  The 340 family is in
> the process of being obsoleted due to developments in the graphics market (it's
> a long story). You can still get limited support by faxing questions to
> 713-274-4027.
> 
> Regards,
> TMS320 Hotline
> (713)-274-2320       (voice)
> (713)-274-2324       (fax)
> (713)-274-2323       (BBS 300-9600,8,N,1)
> 4389750@mcimail.com  (Internet)

Can anyone else confirm or deny this bit of information? We are about to
start doing some programming for a TMS34010-based product and want to know
if we are wasting our time. 

A couple of other related questions

(1) What is the timetable for this?
(2) Will TI introduce any new downward compatible processors?

Just so I don't get flamed. I tried calling the FAX number --- its been busy
all afternoon. I called the TI sales office in Toronto. They claim that this
is *not* going to happen (or that it is a well kept secert).

Email or post replies.

Thanks,
Todd Schneider.
From: gints@prophet.esd.sgi.com (Gints Klimanis)
Newsgroups: comp.dsp
Subject: Re: Price Range Of DSP
Date: 6 Jan 1993 20:08:01 GMT
Organization: Silicon Graphics, Inc.
Distribution: usa
NNTP-Posting-Host: prophet.esd.sgi.com

In article <1993Jan6.133516.14312@murdoch.acc.Virginia.EDU>,
fh8n@uvacs.cs.Virginia.EDU (Frank Houston) writes:
|> 	Hello DSP land
|> 
|> 	I am doing my phd in compiler work here at UVA. Does anyone know
|> the current prices Ti 320c33 , 21020, National Semi 64 Bit Chip.
|> Etc, I am most interested in the cheapest highest performance chip.

~$30 for low quantities of TI 320C31 (what's the C33?).  ~$100 for 21020.
You really need price quotes from the manufacturers for a specified
clock rate, volume and time frame.  I think you'll find the 33 MHz C31
to be the greatest bang for the buck for floating point processors.


Newsgroups: comp.dsp
From: DSPWorld@world.std.com (Amnon Aliphas)
Subject: CALL FOR PAPERS - ICSPAT - DSP WORLD EXPO.
Organization: The World Public Access UNIX, Brookline, MA
Date: Thu, 7 Jan 1993 22:09:32 GMT


                               CALL FOR PAPERS




    International Conference on Signal Processing Applications & Technology


                         featuring DSP World Expo.




         September 28, 1993 - October 1, 1993, San Francisco Bay Area



               Application Areas:  Automotive
                                   Communications
                                   Computer Architectures
                                   Consumer Products
                                   DSP Machines
                                   DSP Software
                                   DSP Technology
                                   Geophysics
                                   Image Processing
                                   Industrial Control
                                   Instrumentation and Testing
                                   Medical Electronics
                                   Military Electronics
                                   Multimedia
                                   Navigation
                                   Neural Networks
                                   Radar
                                   Telephony
                                   Underwater
                                   Video
                                   VLSI Architectures
                                   
                                   and other applications


 Mail, Fax, e_mail a 400 word abstract for review, no later than April 30,1993.

 to:             DSP Associates
                 18 Peregrine Road
                 Newton, MA 02159

                 Tel: (617) 964-3817 or (617) 964-3195
                 Fax: (617) 969-6689

                 e_mail:  DSPWorld@world.std.com

______________________________________________________________________________

   DSP Associates -- Electronic Engineering Times -- Electronic World News

______________________________________________________________________________
Newsgroups: comp.dsp
From: dorsey@lila.com (Bill Dorsey)
Subject: Resampling methods
Followup-To: dorsey@lila.com
Organization: Yoyodyne Propulsion Systems, Inc.
Date: Sun, 10 Jan 1993 20:22:23 GMT

I have a signal which is sampled at F1 hertz which I want to resample
at F2 hertz.  Neither F1 nor F2 divide each other evenly.  Are there
any methods which can be used to resample F1 directly (e.g. not first
transform it into some other domain)?

The only reference to resampling I can find in my DSP book involves
taking a DFT of the input signal, truncating or padding it as appropriate,
and then taking it's inverse.

-- 
Bill Dorsey      "Most people mistake law for justice and authority for
dorsey@lila.com   liberty.  You will hear them talk of 'liberty under law,'
PGP 2.x public    and they are content to see it so deep under the law that
key on request    it is completely obliterated." -- Herbert Spencer