1、INTERNATIONALSTANDARDIEC61603-8-1First edition2003-11Transmission of audio and/or video andrelated signals using infrared radiation Part 8-1:Digital audio and related signalsReference numberIEC 61603-8-1:2003(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIE
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8、19 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONALSTANDARDIEC61603-8-1First edition2003-11Transmission of audio and/or video andrelated signals using infrared radiation Part 8-1:Digital audio an
9、d related signals IEC 2003 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue
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11、ALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61603-8-1 IEC:2003(E)CONTENTSFOREWORD.51Scope.72Normative references.73Terms,definitions and abbreviations.74System description.84.1General.84.2Area of application.94.3Band allocation.95General characteristics.115.1Environm
12、ent conditions for operation.115.2Partition of functions between elements of the systems.116Specific requirements.116.1Block diagram.116.2Input and output.126.3Carrier.126.4Sub-carrier.126.5Channel allocation.126.6Block structure.146.7Source stream.146.8Transmission stream.196.9Modulation.207Charact
13、eristics and measurements.267.1Test conditions.267.2Location.267.3Transmitting distance and directivity.267.4Spurious level.287.5Accuracy of transmission-check frequency.288Marking and contents of specifications.288.1Marking.288.2Contents of specifications.28Annex A(normative)Application of the tran
14、smission systems for digital audio andrelated signals using infrared radiation in the consumer audio mode.33Annex B(normative)Application of the transmission systems for digital audio andrelated signals using infrared radiation in the professional audio mode.42LICENSED TO MECON Limited.-RANCHI/BANGA
15、LOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61603-8-1 IEC:2003(E)3 Figure 1 System concept.9Figure 2 IEC 61603 band allocation.10Figure 3 Band allocation.10Figure 4 Transmitter.11Figure 5 Channel-coding block.12Figure 6 Channel allocation.13Figure 7 Block structure.14Fi
16、gure 8 Source stream.15Figure 9 Source_block stream.15Figure 10 Source_info stream.16Figure 11 Block alignment.17Figure 12 Parity check matrix.18Figure 13 Error correction code block.18Figure 14 Transmission stream.19Figure 15 The order bytes in Tr_section.20Figure 16 Modulation block.21Figure 17 Byte to symbol conversion.21Figure 18 XOR gates.22Figure 19 Scramble pattern generator.22Figure 20 QPSK mapping.23Figure 21 Baseband filter characteristics.24Figure 22 Transmission chain.29Figure 23 Loc
