EN 61603-1:1997
(Main)Transmission of audio and/or video and related signals using infra-red radiation - Part 1: General
Transmission of audio and/or video and related signals using infra-red radiation - Part 1: General
Gives methods of measuring and specifiying the common technical features of systems using diffusely radiated or wide beams of infra-red radiation as carriers of information, mainly representing audio and/or video, but also control data related to audio and video apparatus.
Übertragung von Ton- und/oder Bildsignalen und verwandten Signalen mit Infrarot-Strahlung - Teil 1: Allgemeines
Transmission de signaux audio et/ou vidéo et de signaux similaires au moyen du rayonnement infrarouge - Partie 1: Généralités
Établit des méthodes de mesure et de spécification relatives aux caractéristiques techniques de systèmes utilisant le rayonnement infrarouge diffus ou en faisceaux larges, ayant la fonction de porteuse d'information. Ces méthodes concernent principalement les signaux audio et/ou vidéo, mais aussi les données de commande pour appareils audio et vidéo.
Transmission of audio and/or video and related signals using infra-red radiation -- Part 1: General (IEC 61603-1:1997)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-april-1999
Transmission of audio and/or video and related signals using infra-red radiation --
Part 1: General (IEC 61603-1:1997)
Transmission of audio and/or video and related signals using infra-red radiation -- Part 1:
General
Übertragung von Ton- und/oder Bildsignalen und verwandten Signalen mit Infrarot-
Strahlung -- Teil 1: Allgemeines
Transmission de signaux audio et/ou vidéo et de signaux similaires au moyen du
rayonnement infrarouge -- Partie 1: Généralités
Ta slovenski standard je istoveten z: EN 61603-1:1997
ICS:
33.160.99 Druga avdio, video in Other audio, video and
avdiovizuelna oprema audiovisual equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME CEI
INTERNATIONALE
IEC
61603-1
INTERNATIONAL
Première édition
STANDARD
First edition
1997-01
Transmission de signaux audio et/ou vidéo
et de signaux similaires au moyen
du rayonnement infrarouge –
Partie 1:
Généralités
Transmission of audio and/or video and
related signals using infra-red radiation –
Part 1:
General
IEC 1997 Droits de reproduction réservés Copyright - all rights reserved
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International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
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61603-1 © IEC:1997 – 3 –
CONTENTS
Page
FOREWORD . 7
INTRODUCTION. 9
SECTION 1: GENERAL
Clause
1.1 Scope. 11
1.2 Normative references. 11
1.3 Definitions. 13
1.4 Abbreviations. 13
SECTION 2: EXPLANATION OF TERMS AND GENERAL INFORMATION
2.1 General. 15
2.2 Operating environment. 15
2.3 IR source. 15
2.4 IR propagation medium and receiver. 17
2.5 Modulation. 19
2.6 IR interference. 23
2.7 Electromagnetic compatibility. 23
2.8 Safety aspects. 23
SECTION 3: GENERAL CONDITIONS FOR MEASUREMENTS
3.1 Operating environment and measurement conditions . 25
3.2 Pre-conditioning. 25
3.3 Interface (matching) values. 25
3.4 Presentation of results in specifications. 25
SECTION 4: CHARACTERISTICS TO BE SPECIFIED AND THEIR METHODS OF MEASUREMENT
4.1 Characteristics of IR sources . 25
4.2 Characteristics of the IR propagation medium and receiver . 29
4.3 Characteristics of modulation. 33
SECTION 5: PERFORMANCE REQUIREMENTS AND RECOMMENDATIONS
5.1 Maximum power density of the irradiation. 35
5.2 Spurious IR emission . 35
5.3 Polarity. 35
5.4 Electrical interfaces. 35
5.5 Spurious modulation signals . 35
5.6 IR emissions from other devices and equipment . 35
61603-1 © IEC:1997 – 5 –
Page
SECTION 6: CLASSIFICATION OR SYSTEMS AND EQUIPMENT
Clause
6.1 General. 37
6.2 Classification criteria and coding. 37
SECTION 7: MARKING AND CONTENTS OF SPECIFICATIONS
7.1 Marking. 37
7.2 Contents of specifications . 37
Tables
1 Interference between IR sources and systems. 39
2 Channel allocation scheme. 41
3 Marking and contents of specifications . 45
Figures
1 Signal chain and related IEC standards. 37
2 Presentation of channel grids. 41
3 Preferred electrical spectrum allocation for IR modulation, and the relevant parts
of this standard. 43
Annex A – Details of the applications of parts 2 to 6 of IEC 1603. 47
61603-1 © IEC:1997 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________
TRANSMISSION OF AUDIO AND/OR VIDEO AND RELATED
SIGNALS USING INFRA-RED RADIATION –
Part 1: General
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters, express as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 1603-1 has been prepared by subcommittee 100C: Equipment and
systems in the field of audio, video and audiovisual engineering, of IEC technical committee
100: Audio, video and multimedia systems and equipment.
This standard should be read in conjunction with IEC 1147 (technical report).
The text of this standard is based on the following documents:
FDIS Report on voting
100C/31/FDIS 100C/58/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
Annex A is for information only.
This standard supersedes IEC 764 and consists of six parts:
Part 1: General
Part 2: Transmission systems for audio wideband and related signals
Part 3: Transmission systems for audio signals for conference and similar applications
Part 4: Transmission systems for low-speed remote control
Part 5: Transmission systems for high-speed data and remote control
Part 6: Transmission systems for video and audovisual signals of high quality
The contents of the corrigendum of May 1997 have been included in this copy.
61603-1 © IEC:1997 – 9 –
INTRODUCTION
This part of IEC 1603 covers the transmission of audio, video, data and control signals which
use free radiation of infra-red (IR).
Transmission using infra-red radiation is in growing use for many different applications. This
standard gives guidance for the generic usage of infra-red. It provides information for
designers and users of infra-red systems which allow the evaluation of the operation of
different systems.
IEC 764 specifies requirements for audio transmission with high quality audio transfer via two
infra-red channels and for conference systems with up to nine audio channels and using
frequency modulation on subcarriers which amplitude modulate the IR intensity. However, this
number of channels sets limits on technical evolution. The growing use of IR transmission,
such as for remote control or data transmission, and the increasing number of cases, where
modulated IR is emitted as a side-effect, reveals the need for a more general concept.
Infra-red systems typically use radiation in the range of wavelengths from 830 nm to 950 nm.
To take into account possible future development, this standard covers wavelengths from
700 nm to 1600 nm. A direct modulation of the frequency of the infra-red radiation is possible,
but is not yet used for transmission through air. It should not be excluded in the long term.
The prevention of interference between different applications by the use of different
wavelengths is not yet economically feasible, but the situation may soon change; therefore this
possibility is allowed for in this standard.
Most of the applications in the complete standard (six parts) already exist as wired systems. In
extending to wireless links using infra-red, the aim is to retain the transmission properties of
the wired versions. This standard is therefore as consistent as possible with existing standards
for wired systems.
This standard gives guidance only on avoiding interference from light sources. For a fully
compatible system, it is necessary to set limits both for the emission from light sources and for
the immunity of the infra-red transmission systems.
For ease of reference, the applications covered in the different parts of this standard are
explained in more detail in annex A.
61603-1 © IEC:1997 – 11 –
TRANSMISSION OF AUDIO AND/OR VIDEO AND RELATED
SIGNALS USING INFRA-RED RADIATION –
Part 1: General
1 Section 1: General
1.1 Scope
This part of IEC 1603 gives methods of measuring and specifying the common technical
features of the parts of systems which use diffusely radiated or wide beams of infra-red
radiation as carriers of information, mainly representing audio and/or video signals but also
control data related to audio and video apparatus.
This standard applies to signal transmission by use of freely radiated infra-red, normally used
indoors in rooms and for groups of varying sizes. It does not cover security systems or other
industrial applications, such as measurement and automation equipment. It also does not cover
traffic systems or systems for the help of handicapped people. Narrow-beam and cable-like
infra-red applications are excluded, although the former could interfere with the systems covered.
1.2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 1603. At the time of publication, the editions indicated
were valid. All normative documents are subject to revision, and parties to
...
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