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About: Signals Represent Information

Module by: Don Johnson. E-mail the author

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Metadata

Name: Signals Represent Information
ID: m0001
Language: English (en)
Summary: A brief discussion of information and signals. This module includes an introduction to the notion of continuous and discrete-time signals.
Subject: Science and Technology
Keywords: analog signal, digital signal, information, signal
License: Creative Commons Attribution License CC-BY 1.0

Authors: Don Johnson (dhj@rice.edu)
Copyright Holders: Don Johnson (dhj@rice.edu)
Maintainers: Don Johnson (dhj@rice.edu), Roy Ha (rha@alumni.rice.edu)

Latest version: 2.27 (history)
First publication date: Jun 20, 2000 12:00 am -0500
Last revision to module: Jun 4, 2009 11:18 am -0500

Downloads

PDF: m0001_2.27.pdf PDF file, for viewing content offline and printing. Learn more.
XML: m0001_2.27.cnxml XML that defines the structure and contents of the module, minus any included media files. Can be reimported in the editing interface. Learn more.

Version History

Version: 2.27 Jun 4, 2009 11:18 am -0500 by Connexions
Changes:
Modified markup for explicit .eps image reference

Version: 2.26 May 9, 2007 11:26 am -0500 by Chuck Bearden
Changes:
Changed the ASCII table to look better.

Version: 2.25 Apr 25, 2005 1:55 pm -0500 by Charlet Reedstrom
Changes:
update to cnxml-0.5

Version: 2.24 Aug 16, 2004 4:33 pm -0500 by Adan Galvan
Changes:
added colspecs so that table would print correctly

Version: 2.23 Apr 16, 2003 12:00 am -0500 by Charlet Reedstrom
Changes:
replaced the old mode designation in math tag with display - it was bothering me

Version: 2.22 Aug 16, 2002 12:00 am -0500 by (Unknown)
Changes:
Fixed minor typos.

Version: 2.21 Jun 17, 2002 12:00 am -0500 by (Unknown)
Changes:
converted to cnxml 4.0

Version: 2.20 Jun 15, 2002 12:00 am -0500 by (Unknown)
Changes:
changed module name

Version: 2.19 Jun 15, 2002 12:00 am -0500 by (Unknown)
Changes:
Changed the name of the modeule and deleted the first paragraph.

Version: 2.18 Apr 2, 2002 12:00 am -0600 by (Unknown)
Changes:
Removed empty cnxn tag linking to first figure of the module.

Version: 2.17 Mar 28, 2002 12:00 am -0600 by (Unknown)
Changes:
Fixed typo of "caterogy" and updated metadata.

Version: 2.16 Sep 11, 2001 12:00 am -0500 by Brent Hendricks
Changes:
Converted to CNXML 0.3.5

Version: 2.15 Aug 29, 2001 12:00 am -0500 by (Unknown)
Changes:
Fixed table reference error.

Version: 2.14 Aug 29, 2001 12:00 am -0500 by (Unknown)
Changes:
Fixed some keywords and minor typos.

Version: 2.13 Aug 22, 2001 12:00 am -0500 by (Unknown)
Changes:
The table looks fine and the rest of the module does as well.
-erin

Version: 2.12 Aug 20, 2001 12:00 am -0500 by (Unknown)
Changes:
I reuploaded all the image files to include the eps files.

Version: 2.11 Aug 17, 2001 12:00 am -0500 by (Unknown)
Changes:
Added speechexample.eps to the pool

Version: 2.10 Aug 17, 2001 12:00 am -0500 by (Unknown)
Changes:
No changes

Version: 2.9 Aug 15, 2001 12:00 am -0500 by (Unknown)
Changes:
Changed the table to a cals table.

Version: 2.8 Aug 15, 2001 12:00 am -0500 by (Unknown)
Changes:
- Change ID to m0001
- Refer to png files, not gif

Version: 2.7 Jul 17, 2001 12:00 am -0500 by (Unknown)
Changes:
Reorganized to make more modular, minor fixes.

Version: 2.6 May 31, 2001 12:00 am -0500 by (Unknown)
Changes:
Changed around the intro paragraph to read better and made the MathML vectors x_0 into real vectors (not display vectors)

Version: 2.5 May 31, 2001 12:00 am -0500 by (Unknown)
Changes:
Changed the intro paragraph to be more readable and make the difference between analog and digital more clear.

Version: 2.4 May 30, 2001 12:00 am -0500 by (Unknown)
Changes:
fd

Version: 2.3 May 30, 2001 12:00 am -0500 by (Unknown)
Changes:
Updated abstract

Version: 2.2 May 25, 2001 12:00 am -0500 by (Unknown)
Changes:
Sample text

Version: 2.1 May 25, 2001 12:00 am -0500 by (Unknown)
Changes:
Updated module from cnxml ver 0.2 to ver 0.3

Version: 2.0 Feb 12, 2001 12:00 am -0600 by Brent Hendricks
Changes:
Bump version to 2.0

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  • the authors' names: Don Johnson
  • the title of the work: Signals Represent Information
  • the OpenStax-CNX URL where the work can be found: http://cnx.org/content/m0001/2.27/

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How to Cite and Attribute This Content

The following citation styles comply with the attribution requirements for the license (CC-BY 1.0) of this work:

American Chemical Society (ACS) Style Guide:

Johnson, D. Signals Represent Information, OpenStax-CNX Web site. http://cnx.org/content/m0001/2.27/, Jun 4, 2009.

American Medical Assocation (AMA) Manual of Style:

Johnson D. Signals Represent Information [OpenStax-CNX Web site]. June 4, 2009. Available at: http://cnx.org/content/m0001/2.27/.

American Psychological Assocation (APA) Publication Manual:

Johnson, D. (2009, June 4). Signals Represent Information. Retrieved from the OpenStax-CNX Web site: http://cnx.org/content/m0001/2.27/

Chicago Manual of Style (Bibliography):

Johnson, Don. "Signals Represent Information." OpenStax-CNX. June 4, 2009. http://cnx.org/content/m0001/2.27/.

Chicago Manual of Style (Note):

Don Johnson, "Signals Represent Information," OpenStax-CNX, June 4, 2009, http://cnx.org/content/m0001/2.27/.

Chicago Manual of Style (Reference, in Author-Date style):

Johnson, D. 2009. Signals Represent Information. OpenStax-CNX, June 4, 2009. http://cnx.org/content/m0001/2.27/.

Modern Languages Association (MLA) Style Manual:

Johnson, Don. Signals Represent Information. OpenStax-CNX. 4 June 2009 <http://cnx.org/content/m0001/2.27/>.