IEC 60094-11-1988 Magnetic tape sound recording and reproducing systems Part 11 Address code for compact cassettes.《磁带录音和重放系统 第11部分 小型盒式录音磁带的地址码》.pdf

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IEC 60094-11-1988 Magnetic tape sound recording and reproducing systems Part 11 Address code for compact cassettes.《磁带录音和重放系统 第11部分 小型盒式录音磁带的地址码》.pdf_第1页
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1、RAPPORT DE LA CE1 IEC REPORT Commission Electrotechnique Internationale International Electrotechnical Commission MeM4yHapoaHaFI 3nepoexwqeca KOMMCCMFI Systmes denregistrement et de lecture du son sur bandes magntiques Onzime partie: Code dadressage destin aux cassettes compactes Magnetic tape sound

2、 recording and reproducing systems Part 11 : Address code for compact cassettes CE1 IEC 94-1 1 Premire dition First edition 1988 Publication 94-11: 1988 Rvision de la prsente publication Le contenu technique des publications de la CE I est constam- ment revu par ia Commission afin dassurer quil refl

3、te bien ltat actuei de la technique. Les renseignements relatifs ce travail de rvision, Itablis- sement des ditions rvises et aux mises jour peuvent tre obtenus auprs des Comits nationaux de la CE I et en consultant les documents ci-dessous: 0 Bulletin de la CE I Annuaire de la CE I Catalogue des pu

4、blications de la CE I Publi annuellement Revision of this publication The technical content of I EC publications is kept under con- stant review by the I EC, thus ensuring that the content reflects current technology. Information on the work of revision, the issue of revised edi- tions and amendment

5、 sheets may be obtained from I EC National Committees and from the following I EC sources: IECBuileh 0 IECYearbook Catalogue of I EC Publications Published yearly Terminologie Terminology En ce qui concerne la terminologie gnrale, le lecteur se repor- tera la Publication 50 de la CE I: Vocabulaire E

6、lectrotechnique International (VEI), qui est tablie sous forme de chapitres spars traitant chacun dun sujet dfini, lIndex gnral tant publi spa- rment. Des dtails complets sur le VE1 peuvent tre obtenus sur demande. For general terminology, readers are referred to IEC Publi- cation 50: International

7、Electrotechnical Vocabulary (IEV), which is issued in the form of separate chapters each dealing with a specific field, the General Index being published as a separate booklet. Full details of the IEV will be supplied on request. Les termes et dfinitions figurant dans ia prsente publication ont t so

8、it repris du VEI, soit spcifiquement approuvs aux fuis de cette publication. The terms and definitions contained in the present publication have either been taken from the IEV or have been specifically approved for the purpose of this publication. Symboles graphiques et littraux Graphical and letter

9、 symbols Pour les symboles graphiques, symboles littraux et signes dusage gnral approuvs par ia CEI, le lecteur consultera: - la Publication 27 de ia CEI: Symboles littraux utiliser en - la Publication 617 de ia CEI: Symboles graphiques pour For graphical symbols, and letter symbols and signs approv

10、ed by the I EC for general use, readers are referred to: - IEC Publication 27: Letter symbols to be used in electrical - IEC Publication 617: Graphical symbols for diagrams. lectrotechnique ; technology ; schmas. Les symboles et signes contenus dans la prsente publication ont t soit repris des Publi

11、cations 27 ou 617 de la CE I, soit spcifi- quement approuvs aux fins de cette publication. The symbols and signs contained in the present publication have either been taken from I EC Publications 27 or 617, or have been specifically approved for the purpose of this publication. Publications de la CE

12、1 tablies par le mme Comit dEtudes I EC publications prepared by the same Technical Committee Lattention du lecteur est attire sur le deuxime feuillet de la couverture, qui numre les publications de ia CE1 prpares par le Comit spcifications mcaniques des bandes magntiques; identification des bandes;

13、 identification des programmes (quatrime dition, 198 1). Deiixitne pastie: Bandes magntiques talons Spcifications minimales remplir par les bandes magntiques talons pour permettre les rglages et les valuations compara- tives des caractristiques de lecture (premire dition, 1975). Tsoisitne pastie: Mt

14、hodes de inesuse des caractristiques des matriels densegistsetnent et de lectuse du son sus bandes magntiques (premire dition, 1979). 94-ll(1) O IEC 1988 -5- INTERNATIONAL ELECTROTECHNICAL COMMISSION MAGNETIC TAPE SOUND RECORDING AND REPRODUCING SYSTEMS Part 11 : Address code for compact cassettes F

15、OREWORD 1) The formal decisions or agreements of the IEC on technical matters, prepare y Technica Committees on 13 ich all the National Committees having a special interest therein are represented, express, as nearly as possible, an international consensus of opinion on the subjects dealt with. 2) T

16、hey have the form of recommendations for international use and they are accepted by the National Committees in that sense. 3) In order to promote intemational unification, the IEC expresses the wish fhat all National Committees should adopt the text of the IEC recommendation for their national rules

17、 in so far as national conditions will permit. Any divergence between the IEC recommendation and the corresponding national rules should, as far as possible, be clearly indicated in the latter. 4) The IEC has not laid down any procedureconcerning marking as an indication of approval and has no respo

18、nsibility when an item of equipment is declared to comply with one of its recommendations. PREFACE This report has been prepared by Sub-committee 60A: Sound Recording of I EC Technical Committee This report should be read in conjunction with Part 7 of I EC Publication 94, the title of which is quote

19、d No. 60: Recording. below. The text of this report is based on the following documents: Six Months Rule Report on Voting Two Months Procedure Report on Voting I 60A(C0)79 I 60A(C0)100 II 60A(CO) 1 O8 I 60A(CO) 1 12 I Full information on the voting for the approval of this report can be found in the

20、 Voting Reports indicated in the above table. this is Part 11. I EC Publication 94 and its supplements are under revision. The new I EC Publication 94 will be issued in several parts, of which It will have the following parts: Part I: General conditions and reqirirernents General electrical requirem

21、ents for the magnetic tape recording and reproducing systems; mechanical requirements for the magnetic tape; tape identification; programme identification (fourth edition, 198 1). Part 2: Calibration tapes Minimum requirements for calibration tapes for making adjustments and comparative assessments

22、of the reproducing perfor- mance (first edition, 1975). Parr 3: Methods of rneasuring the characteristics of recording and reproducing eqiriprnenf for sound on magnetic tape (first edition, 1979). I i IEC 74 PT833 88 W 489987L 0093328 3 , 94-ll(1) O CE1 1988 -6- Quatritn-e partie: Proprits mcaniques

23、 des bandes magntiques Caractristiques spcifier, mthodes de mesure correspondantes. Matriels utiliser pour la dtermination des proprits mcaniques des bandes magntiques (premire dition, 1986). Cinquime partie: Proprikts lectriques des bandes magntiques Caractristiques spcifier, mthodes de mesure et m

24、atriels utiliser pour la dtermination des proprits lectriques des bandes magntiques destines lenregistrement et la lecture analogiques du son (premire dition, 1988). Sixime partie: Systmes bobines Dimensions et spcifications mcaniques des bobines et noyaux et rpartition des pistes correspondantes (p

25、remire dition, 1985). Septime partie: Cassette pour enregistrements du commerce et usage grand public Dimensions et spcifications mcaniques y compris la rpartition des pistes correspondantes (premire dition, 1986). Huitime partie: Cartouche pour bande magntique 8 pistes pour enregistrements du comme

26、rce et 2 usage du grand public Dimensions et spcifications mcaniques comprenant la rpartition des pistes correspondantes (premire dition, 1987). Neuvime partie: Cartouche pour bande magntique usage professionnel Dimensions et spcifications mcaniques y compris la rpartition des pistes correspondantes

27、 (premire dition, 1988). Dixime partie: Onzime partie: Codes de temps et dadressage (premire dition 1988). Code dadressage destin aux cassettes compactes (faisant lobjet du prsent rapport). 94-1 l(1) O IEC 1988 -7- Part 4: Mechanical magnetic tape properties Characteristics to be specified and relev

28、ant methods of measurement. Equipment to be used to determine the mechanical properties of magnetic tapes (first edition, 1986). Part 5: Electrical magnetic tape properties Characteristics to be specified, methods of measurement and equipment to be used for the determination of the electrical proper

29、ties of magnetic tape for analogue sound recording and reproduction (first edition, 1988). Part 6: Reel-to-reel systems Mechanical requirements and dimensions, including reels, hubs and relevant frack allocations (first edition, 1985). Part 7: Cassette for commercial tape records and domestic use Me

30、chanical requirements and dimensions, including track allocations (first edition, 1986). Part 8: Eight-track magnetic tape cartridge for commercial tape records and domestic use Mechanical requirements and dimensions, including track allocation (first edition, 1987). Part 9: Magnetic tape cartridge

31、for professional use Mechanical requirements and dimensions, including track allocation (first edition, 1988). Part 10: Time and address codes (first edition, 1988). Part II: Address code for compact cassettes (object of this report). I IEC 94 PTa1111 88 48448911 00731130 T -8- 94-1 l(1) O CE1 1988

32、SYSTMES DENREGISTREMENT ET DE LECTURE DU SON SUR BANDES MAGNTIQUES Onzime partie: Code dadressage destin aux cassettes compactes 1. Objet . Dfinir un code dadressage enregistrer sur les bandes en cassettes enregistres du commerce et sur les cassettes compactes. En utilisant un appareil de lecture ap

33、propri, il permet la recherche automatique dune squence puis sa reproduction. 2. Caractristiques du systme de code dadressage - Chaque squence est prcde par un signal de code particulier, - Une identification de la face A ou face B est donne dans le code. - Le signal de code ne perturbe pas la lectu

34、re. - Le code peut tre lu la fois la vitesse de lecture et la vitesse de bobinage maximale. - La structure et lenregistrement du systme de code ont t dfinis pour liminer pratiquement les erreurs de fonctionnement dues la prsence de signaux musicaux. - Le systme permet lutilisation de codes de comman

35、de spciaux. Cette possibilit est dj utilise pour une indication de est reprsent par une priode du signal 10 Hz. Un O est reprsent par Iabsence de signal pendant une priode. La figure 1 montre un exemple de signal de code qui reprsente ici la squence numro A2 1. 3.2.2 Les figures 2a et 2b donnent la

36、table de codage ainsi que la position des impulsions sur la bande. La position 1 dans le code correspond la premire impulsion lue en mode lecture. 3.2.3 Parmi les 70 signaux de code possibles, seuls les codes Al A30 sont utiliss pour adresser les squences sur la face A de la cassette. Les codes B1 B

37、30 sont utiliss pour la face B. Les autres codes, de A31 A35 et B31 B35 sont rservs des fonctions de commande particulires. 3.2.4 On a dj rserv deux codes de commande particuliers pour indiquer la &n de programmew I1 sagit des codes A35 et B35 (voir article 2). 3.2.5 Les codes Al et B1 sont identiques, lexception du quatrime bit. Cela donne une mthode simple pour identifier la face.

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