Last edited by Mokazahn
Thursday, July 30, 2020 | History

1 edition of Telidon Videotex presentation level protocol found in the catalog.

Telidon Videotex presentation level protocol

Telidon Videotex presentation level protocol

augmented picture description instructions

  • 165 Want to read
  • 26 Currently reading

Published by Communications Research Centre, Dept. of Communications in Ottawa, Ont .
Written in English

    Subjects:
  • Videotex systems,
  • Television display systems.,
  • Information display systems.

  • Edition Notes

    Statementby C.D. O"Brien ... [et al.] ; technical editor: A. Kwan.
    SeriesCRC technical note -- no. 709-E
    ContributionsO"Brien, C. D., Communications Research Centre (Canada)
    Classifications
    LC ClassificationsTK"7882"I6"T46"1982
    The Physical Object
    Pagination1 v. (various pagings) :
    ID Numbers
    Open LibraryOL20806413M

    DOCUMENT RESUME. ED IR AUTHOR. Wilson, Joy Telidon/videotex are: (1) the need for more research, development, The Telidon Presentation Level Protocol builds upon the existing ASCII standard by including a supplementary set of characters and a series of commands known as Picture Description Instructions. And unlike textual databases like CompuServe — which use the ASCII standard — graphics databases would have to be specific to a particular kind of micro. Hope exists, though, in the form of NAPLPS (nap-lips, as the cognoscenti like to say), the North American Presentation Level Protocol Syntax.

      To mind this gap they choose to join the Telidon project and added some new commands and features. That extended videotex system is the NAPLPS, acronym for North American Presentation Level Protocol Syntax, announced by CRC, Bell Canada and AT&T in Author: Piter Punk.   It used a teletext graphical interface with basic, early multicolor 'paint' type graphics — on the NAPLPS standard (North American Presentation Level Protocol Syntax).

    Some of the major trends in the merging of videotex and personal computer technology are outlined in this promotional brochure, one of 10 in a series on videotex, a system which uses standard transmission links to transmit information in text and graphics to a television set or computer monitor. Topics addressed include the NAPLPS standard (North American Presentation Level Protocol Syntax. NAPLPS (North American Presentation Level Protocol Syntax) is a graphics language for use originally with videotex and teletext services. NAPLPS was developed from the Telidon system developed in Canada, with a small number of additions from AT&T Corporation. The basics of NAPLPS were later used as the basis for several other microcomputer-based graphics systems.


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Telidon Videotex presentation level protocol Download PDF EPUB FB2

The Telidon Videotex system is a method by which graphic and textual information and transactional services can be accessed from information sources by the general by: 1.

Videotex is a name used internationally to represent a class of home and business information services which disseminate information or provide for transactional services from public information Videotex and Protocol Systems Author: C. O'Brien, H. Bown.

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Order online or call: Americas: +1 | Asia Pacific: + | Europe, Middle East, Africa: +44 Prices subject to change without notice. Presentation-level protocol for national videotex services Pierre Schmid and Christian Maurer propose a comprehensive protocol that can combine European and US image-coding methods A comprehensive presentation level protocol (PLP) for videotex services is proposed, which, similar to AT& T's PLP, also encompasses mosaic, DRCS, geometric and eventuallyphotographic coding Cited by: 1.

Displaying NAPLPS (Telidon ) graphics on a modern computer: Technical Note NAPLPS (North American Presentation Level Protocol Syntax) was a vector image encoding standard developed primarily by the Canadian federal department of Communications for use on Telidon Videotex systems.

Although NAPLPS has been obsolete since the late s, we Author: John Durno. Photo CRC The Telidon program began officially on Aug and ended on Ma To promote development of a national videotex infrastructure through appropriate standards, regulations and technology.

To encourage the creation of a viable Telidon industry producing hardware, software, systems and services. In the early/mids, the Telidon protocol would become the basis for NAPLPS - the North American Presentation Level Protocol Standard.

Along the way, telecom companies became involved and produced some hardware. Presented here is one of the physical remnants of the Telidon project, a Microtel VTX display terminal manufactured in / NAPLPS (North American Presentation Level Protocol Syntax) was a vector image encoding standard developed primarily by the Canadian federal department of Communications for use on Telidon Videotex systems.

Although NAPLPS has been obsolete since the late s, we determined that it is still possible to render NAPLPS graphics on contemporary. Telidon was a videotex/teletext service developed by the Canadian Communications Research Centre during the late s and supported by commercial enterprises led by Infomart in the early s.

The CRC referred to Telidon as a "second generation" system, offering improved performance, 2D colour graphics, multilingual support and a number of different interactivity options supported on various. Current Status of Harmonization for Videotex Display Aspects and Transmission Coding for 26 Countries of Europe, Contribution D41 to CCITT Study Group VIII, Geneva, Oct., Google Scholar [12]Author: Paul E.

Green. Telidon is essentially a computer graphics code which is very effective as the presentation level protocol for videotex, for which it was originally developed, teletext and other consumer- and business-oriented information : U.A.

Tenne-Sens. The graphics language is called the North American Presentation Level Protocol System (NAPLPS) and was the first videotex software to employ alphageometric technology. Funded originally as a government project, the Teleguide project sank as quickly as the funding dried up but some of the technology was acquired by Bell and made it into their.

The protocol was developed and named NAPLPS (North American Presentation Level Protocol Syntax), and was complete in February of (Guédon, ). The field trials, christened "Vista," were launched with a prototype version of the NAPLPS code () in the early s.

Telidon officially ceased to exist in March of Still from one of Glenn Howarth's NAPLPS (North American Presentation Level Protocol Syntax, the second version of the Telidon protocol) artworks.

From the Glenn Howarth Telidon Art Restoration Project at the University of Victoria, Restored using a Microtel VTX Telidon terminal from the SPARC Radio Museum.

Subjects. NAPLPS(North American Presentation Level Protocol Syntax) is an international standard for Videotex service. AT&T(American Telephone and Telegram) expanded the PLP(Presentation Level Protocol) to North American standards.

(PLP was developed by the Telidon System, which was a project of the Canadian Government.). In a strict definition, videotex is any system that provides interactive content and displays it on a video monitor such as a television, typically using modems to send data in both directions.

A close relative is teletext, which sends data in one direction only, typically encoded in a television signal. The heart of any Telidon system was the Picture Description Instruction - the special code that instructed the decoder what to draw on the display screen.

The coding scheme, known as the North American Presentation Level Protocol Syntax (NAPLPS), came to. This is a victory for Canada, because the new standard's protocol contains Telidon (the interactive videotex system developed by the department) as the fundamental component.

The approval gives a major advantage to Canadian companies marketing Telidon equipment, software and services abroad. Full text of "ERIC ED Videotex and Teletext: Teaching and Learning. An International Survey. Telldon - and its^enhanced version - the North American Presentation level Protocol System (HAPtPS), adopted by AT&T.

«- The United States Applications Videotex: 25 Teletext: 15 ' Total: 40 4 Educational 5 ' 3 8 ' Britain The situation. Telidon, combined with developments of AT&T in the U.S. in the early 80's evolved into the North American Presentation Level Protocol System (NAPLPS), the industry standard until the invention of the World Wide Web and Hypertext Markup Language.NAPLPS (North American Presentation-Level Protocol Syntax) An ANSI-standard protocol for videotex and compresses data for transmission over narrow-bandwidth lines and requires decompression on the receiving end.

PRODIGY uses this format .financing of Telidon research and development ended in March It never became a service, as videotex or teletext. (In Bell Canada began a videotex trial in Montreal, "Alex", using Canadian post-Telidon North American Presentation Level Protocol .