Goals of Engineering Sciences E-129
The Shannon Diagram
The CSCI E-129 chronology of communication related events: Part 1: 4004 BC to 1899
Visual Communication: torches, flares, smoke signals, semaphore, railroad signals and signal flags
Sonic or Auditory Communication: bells, sirens, horns, whistles, signal drums and Hooke/Wheatstone "Aconcryptophone"
Shocking communication: communication by electric current flow on a electrical conductor
Early encoding schemes: synchronism and code-books
Lesage's electrostatic telegraph: spatial multiplexing - parallel data formats
von Sömmering's electrochemical telegraph: spatial multiplexing - parallel data formats
Chappe's code (local copy)
Edelcrantz's octal code (reference)
Uniform Product Code (UPC)
Encoding visual messagesPicture or pixel scanning: a fundamental communication concept which is often attributed to Alexander Bain (1811-1877)The picture scanning concept
In 1883 Paul Nipkow (1860-1940) envisaged and demonstrated a complete scanning system.
An early AT&T facsimile system based on Bain's scanning concept.
Chappe's Semaphore System (1793-1852): in 1793 Claude Chappe began the development of an optical semaphore telegraph system which eventually covered France with a total of 556 stations spanning 4800 Km.
Edelcrantz's Shutter System: in 1794 Abraham Niclas Clewberg-Edelcrantz built and tested the first Swedish experimental optical telegraph system between Stockholm and Drottningholm.