Terminal Equipment (TE); Videotex presentation layer protocol; Videotex presentation layer data syntax

The syntax needs to be extended with non latin languages (cyrillic, arabic..). In addition updates for mosaic display are necessary. Combination rules between text, geometric and photographic have to be added

Terminalska oprema (TE) – Protokol za predstavitveno plast sistema Videotex – Podatkovna skladnja za predstavitveno plast sistema Videotex

General Information

Status
Published
Publication Date
30-Nov-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2003
Due Date
01-Dec-2003
Completion Date
01-Dec-2003

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Amendment
SIST ETS 300 072:2003/A1 E1:2003
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Standards Content (sample)

SLOVENSKI STANDARD
SIST ETS 300 072:2003/A1 E1:2003
01-december-2003
Terminalska oprema (TE) – Protokol za predstavitveno plast sistema Videotex –
Podatkovna skladnja za predstavitveno plast sistema Videotex

Terminal Equipment (TE); Videotex presentation layer protocol; Videotex presentation

layer data syntax
Ta slovenski standard je istoveten z: ETS 300 072/A1 Edition 1
ICS:
35.100.60 Predstavitveni sloj Presentation layer
35.180 Terminalska in druga IT Terminal and other
periferna oprema IT peripheral equipment
SIST ETS 300 072:2003/A1 E1:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 072:2003/A1 E1:2003
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SIST ETS 300 072:2003/A1 E1:2003
ETS 300 072
AMENDMENT A1
October 1996
Source: ETSI TC-TE Reference: RE/TE-01040
ICS: 33.060.50
Key words: Videotex, Videotex data syntax
This amendment A1, will modify
the European Telecommunication Standard ETS 300 072 (1990)
Terminal Equipment (TE);
Videotex presentation layer protocol;
Videotex presentation layer data syntax
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16

Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the

foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1996. All rights reserved.
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SIST ETS 300 072:2003/A1 E1:2003
Page 2
ETS 300 072: November 1990/A1: October 1996

Whilst every care has been taken in the preparation and publication of this document, errors in content,

typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to

"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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SIST ETS 300 072:2003/A1 E1:2003
Page 3
ETS 300 072: November 1990/A1: October 1996
Foreword

This amendment to ETS 300 072 (1990) has been produced by the Terminal Equipment (TE) Technical

Committee of the European Telecommunications Standards Institute (ETSI).

This amendment to ETS 300 072 specifies the following additional data syntax elements:

- a second possible display structure;

- references to ITU-T Recommendation T.101, annex C for the use of Arabic, Hebrew and Chinese

character sets;

- references to ITU-T Recommendation T.52 for the use of the Cyrillic character set;

- the switching mechanism between Videotex terminal configurations.

The amendment specifies only additional aspects and contains no deletions to the current content of

ETS 300 072.
Transposition dates
Date of adoption of this ETS: 18 October 1996
Date of latest announcement of this ETS (doa): 31 January 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 July 1997
Date of withdrawal of any conflicting National Standard (dow): 31 July 1997
Amendments
Replace Part 0, subclause 1.2.2 (page 4) with the following text:
"1.2.2 Display structure

Videotex terminals shall use either the theoretical display structure (see subclause 1.2.2.1) or the time

dependent display order (see subclause 1.2.2.2).
1.2.2.1 Theoretical display structure

The theoretical sructure of the display consists of the following layers in order of precedence:

- alphamosaic character foreground and background layers (see part 1, section 1.2);

- photographic layer (see part 3);
- full screen background layer (see part 1);
- any other video source.
Changing the display structure is for further study.
1.2.2.2 Time dependent display order

The terminal structure can be regarded as a one layer display. The receiving order of the VPDEs

determines the display order; the last received VPDE, independent from its type, shall always be

processed and can be displayed. It may superimpose already displayed information."

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SIST ETS 300 072:2003/A1 E1:2003
Page 4
ETS 300 072: November 1990/A1: October 1996
Insert the following text in Part 0, clause 2 (page 5) as the 1st paragraph:

"This ETS incorporates by dated and undated reference, provisions from other publications. These

normative references are cited at the appropriate places in the text and the publications are listed

hereafter. For dated references, subsequent amendments to or revisions of any of these publications

apply to this ETS only when incorporated in it by amendment or revision. For undated references the last

edition of the publication referred to applies.

ITU-T Recommendation T.101 (1994): "International interworking for videotex services".

ITU-T Recommendation T.52 (1994): "Non-Latin coded character sets for telematic services".

ETS 300 076 (1994): "Terminal Equipment (TE); Videotex Terminal Facility
Identifier (TFI)".

NOTE: The above references are unnumbered in order to align with the original version of

ETS 300 072 which does not exist in electronic format and consequently cannot be
changed without considerable effort.
Insert the following text as part 0, new clause 4:
"4 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
PLDS Presentation Layer Data Syntax
VPDE Videotex Presentation Data Element"

Replace part 1, subclause 2.1.1, 1st paragraph (page 18) with the following text:

...

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