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Ralph Ravanesi Phones & Addresses

  • 1926 Gresham Cir, Wheaton, IL 60187 (630) 588-0989 (630) 858-9073
  • 1926 Gresham Cir UNIT B, Wheaton, IL 60189 (630) 588-0989
  • 2N262 Euclid Ave, Glen Ellyn, IL 60137 (630) 858-9073
  • 2N254 Euclid Ave, Glen Ellyn, IL 60137
  • West Chicago, IL
  • Villa Park, IL

Business Records

Name / Title
Company / Classification
Phones & Addresses
Ralph M. Ravanesi
Principal
Advance Graphics
Commercial Art/Graphic Design
1926 Gresham Cir, Wheaton, IL 60189

Publications

Us Patents

Gray Scale Display System Employing Digital Encoding

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US Patent:
40093352, Feb 22, 1977
Filed:
Aug 9, 1973
Appl. No.:
5/387006
Inventors:
Robert A. Payne - Des Plaines IL
Gregory E. Slobodzian - Chicago IL
Stanley A. Zielinski - Villa Park IL
Ralph M. Ravanesi - Villa Park IL
Assignee:
Stewart-Warner Corporation - Chicago IL
International Classification:
H04N 566
G09F 932
US Classification:
358240
Abstract:
A large display system capable of displaying a video image receives video signals, quantizes those signals to produce a digital code capable of representing variations in the light content of the image and processes the digital code so to control individual display devices on a large matrix of such devices to have different levels of visibility to thereby reproduce the video image for viewing by a large audience. A data processor is utilized to store the digital representation of the video image in memory so that on line or off line presentations can be made.
Ralph M Ravanesi from Wheaton, IL, age ~88 Get Report