ISO/TR 11548-2:2001 PDF

Name: ISO/TR 11548-2:2001 — Communication aids for blind persons — Identifiers, names and assignation to coded character sets for 8-dot Braille characters — Part 2: Latin alphabet based character sets
SKU: ISO/TR 11548-2:2001
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Communication aids for blind persons — Identifiers, names and assignation to coded character sets for 8-dot Braille characters — Part 2: Latin alphabet based character sets

Название (английский):

ISO/TR 11548-2:2001

Communication aids for blind persons — Identifiers, names and assignation to coded character sets for 8-dot Braille characters — Part 2: Latin alphabet based character sets

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 42
Дата публикации:: 20 декабря 2001 г.
Издание:: ISO TR 11548 edition 1 version 1
ICS:: 11.180.30

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Описание (английский):

This part of ISO/TR 11548 specifies the assignation of 8-dot Braille to Latin alphabet based 8-bit code tables. This part of ISO/TR 11548 is intended to be used by experts and manufacturers of 8-dot Braille input and output devices, interfaces and software for data exchange. This part of ISO/TR 11548 does not apply to 6-dot Braille and does not specify any physical dimension of Braille characters.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/TR 11548-2:2001 - Communication aids for blind persons defines how 8‑dot Braille patterns are assigned (mapped) to Latin alphabet based 8‑bit coded character sets. The Technical Report provides semantic assignation (meanings) for each 8‑dot Braille pattern so that Braille input/output devices, interfaces and software can exchange data consistently between tactile Braille and sighted text. It does not cover 6‑dot Braille or any physical dimensions of Braille cells.

Key topics

Scope and purpose: Establishes mapping of 8‑dot Braille to Latin‑based 8‑bit code tables to support interoperability of assistive technology.

Semantic assignation: Uses tables where each Braille pattern can have multiple meanings distinguished by rank numbers; the primary meaning is rank 0. Unambiguous meaning is indicated by shift marks (SM1, SM2, SM3) and rank indicators.

Reference tables:

Table 1 & Table 2 - Assignations of Braille patterns to meanings (sorted by Braille identifiers and by character meanings respectively).
Table 3 - Complete Braille equivalent aligned as closely as possible with Latin Alphabet No.1 (ISO/IEC 8859‑1) and including control characters for a full 256‑value table.
Annex A (Tables A.1 & A.2) - Additional mappings for commonly used PC code pages (referred to as PC1 = code page 850 and PC2 = code page 437).

Shifting conventions: Specifies how to indicate a switch to Latin alphabet based character sets using SHIFT MARK ONE/TWO and a character set indicator (B100), per ISO/TR 11548‑1.

Intended audience: Experts, manufacturers and developers working on 8‑dot Braille hardware and software.

Applications

Development and testing of Braille displays, embossers, tactile printers and Braille input devices that support 8‑dot Braille.

Software for screen‑to‑Braille translation, Braille drivers, accessibility middleware and data‑exchange formats between Braille and visual text systems.

Ensuring interoperability between assistive devices and host systems by providing a standardized mapping to common 8‑bit code tables.

Supporting localization and multi‑language support where Latin‑based character sets are involved.

Related standards

ISO/TR 11548‑1 (general guidelines for Braille identifiers and shift marks)

ISO/IEC 10646‑1 (encoding 8‑dot Braille patterns)

ISO/IEC 8859‑1, ISO/IEC 646, ISO/IEC 6429, ISO/IEC 4873, ISO/IEC 10367 (referenced for code tables and control characters)

Use ISO/TR 11548‑2 when you need a reliable, standards‑based mapping between 8‑dot Braille and Latin‑based 8‑bit character sets to ensure consistent data exchange and device interoperability in assistive technology.

ISO/TR 11548-2:2001 PDF

Abstract

Похожие стандарты

Overview

Key topics

Applications

Who should use this standard

Related standards

Технические детали

BS ISO/IEC 8859-1:1998

Information technology. 8-bit single-byte coded graphic character sets - Latin alphabet No. 1

ISO/TR 11548-1:2001

Communication aids for blind persons — Identifiers, names and assignation to coded character sets for 8-dot B…

ISO/IEC 10646-1:2000/Amd 1:2002

Information technology — Universal Multiple-Octet Coded Character Set (UCS) — Part 1: Architecture and Basic…

ISO/IEC 646:1991

Information technology — ISO 7-bit coded character set for information interchange

SIST ISO/IEC 6429:1995

Information technology -- Control functions for coded character sets

ISO/IEC 4873:1991

Information technology — ISO 8-bit code for information interchange — Structure and rules for implementation

ISO/IEC 10367:1991

Information technology — Standardized coded graphic character sets for use in 8-bit codes