BS EN 61119-1-1994 Digital audio tape cassette system (DAT) - Dimensions and characteristics《数字音频盒式磁带系统(DAT) 尺寸规格和特性》.pdf

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1、BRITISH STANDARD BS EN 61119-1:1994 IEC1119-1: 1992 Digital audio tape cassette system (DAT) Part1: Dimensions and characteristics The European Standard EN61119-1:1994 has the status of a BritishStandard UDC 621.396.7:681.84.083.84:681.32BSEN61119-1:1994 This BritishStandard, having been prepared un

2、der the directionof the ElectrotechnicalSector Board,was published undertheauthority of the StandardsBoard and comesintoeffect on 15November1994 BSI 12-1999 The following BSI references relate to the work on this standard: Committee referenceEEL/22 Draft for comment88/30302DC ISBN 0 580 23527 0 Coop

3、erating organizations The European Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard was prepared, comprises the national committees of the following countries: Austria Italy Belgium Luxembourg Denmark Netherlands Finland Norway France Portugal

4、Germany Spain Greece Sweden Iceland Switzerland Ireland United Kingdom Amendments issued since publication Amd. No. Date CommentsBSEN61119-1:1994 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN61119-1 5 National annex NA (informativ

5、e) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN61119-1:1994 ii BSI 12-1999 National foreword This BritishStandard has been prepared under the direction of the Electrotechnical Sector Board and is the English language version of EN611

6、19-1:1994 Digital audio tape cassette system (DAT) Part1: Dimensions and characteristics, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC1119-1:1992, published by the International Electrotechnical Commission (IEC). BS EN61119 consists of

7、the following Parts: Part1: Dimensions and characteristics; Part2: DAT calibration tape; Part3: DAT tape properties; Part4: Character pack format 1) ; Part5: DAT for professional use; Part6: Serial copy management systems 1) ; Part7: DAT logo application rule 1) . A British Standard does not purport

8、 to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cove

9、r, pagesi andii, theEN title page, pages2 to96, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. 1) In preparation.EUROPEAN STANDARD NORME EURO

10、PENNE EUROPISCHE NORM EN61119-1 July1994 UDC 621.396.7:681.84.083.84:681.32 Descriptors: Sound recording, digital recording, data recording devices, audiocassettes, magnetic tapes, track formats, dimensions, characteristics English version Digital audio tape cassette system (DAT) Part1: Dimensions a

11、nd characteristics (IEC 1119-1:1992) Systme audionumrique cassette (DAT) Partie1: Dimensions et caractristiques (CEI1119-1:1992) Digitales Tonband-Kassetten-System Teil1: Mae und Kennwerte (IEC1119-1:1992) This European Standard was approved by CENELEC on1994-05-15. CENELEC members are bound to comp

12、ly with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Sec

13、retariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as

14、 the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Elect

15、rotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1994 Copyright reserved to CENELEC members Ref. No. EN61119-1:1994EEN61119-1:1994 BSI 12-1999 2 Foreword The CENELEC q

16、uestionnaire procedure, performed for finding out whether or not the International Standard IEC1119-1:1992 could be accepted without textual changes, has shown that no common modifications were necessary for the acceptance as European Standard. The reference document was submitted to the CENELEC mem

17、bers for formal vote and was approved by CENELEC as EN61119-1 on15May1994. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given only for information. In this standard, Annex A, Annex B andAnnex ZA are normativ

18、e andAnnex C andAnnex D are informative. Contents Page Foreword 2 Introduction 5 1 Scope and object 5 2 Normative references 5 3 Description of the system 5 4 Test conditions 5 5 Mechanical parameters 6 5.1 Cassette 6 5.1.1 Dimensions and tolerances 6 5.1.2 Outside view 6 5.1.3 Label area 6 5.1.4 Wi

19、ndow 6 5.1.5 Accidental erasure prevention (AEP) 6 5.1.6 Recognition holes 6 5.1.7 Cassette holding area 7 5.1.8 Groove for loading grip 7 5.1.9 Tape begin/end detection 7 5.1.10 Lid 7 5.1.11 Slider locks 7 5.1.12 Hub 8 5.2 Tape 8 5.2.1 Magnetic tape 8 5.2.2 Leader and trailer tapes 8 5.2.3 Tape win

20、ding 8 5.2.4 Single hub friction torque 8 6 Track configuration and patterns 19 6.1 Track configuration 19 6.1.1 Tape speed and number of tracks per second 20 6.1.2 Track angle 20 6.1.3 Track pitch 20 6.1.4 Track length 20 6.1.5 Track centre 20 6.1.6 Head azimuth 20 6.1.7 Effective recording width 2

21、0 6.1.8 Definition of frame 20 6.1.9 Optional tracks 20 6.2 Signal allocation 22 6.2.1 Recording format of track 22 6.2.2 Positioning accuracy 22 6.3 Recording signals 22 6.3.1 Inter-block gap (IBG) 22 6.3.2 Preamble, postamble and margin 23 latest date of publication of an identical national standa

22、rd (dop)1995-03-15 latest date of withdrawal of conflicting national standards (dow)1995-03-15EN61119-1:1994 BSI 12-1999 3 Page 6.3.3 Automatic track finding (ATF), main data area and sub data area 23 7 Recording parameters 23 7.1 Recording level 23 7.1.1 Specification 23 7.1.2 Measurement method 23

23、 7.2 Erasing method 23 8 Tracking scheme 23 8.1 Automatic track finding (ATF) 23 8.1.1 Definition 23 8.1.2 ATF signal allocation 24 8.1.3 Recording signal 24 9 Main data area format 28 9.1 Main data block format 28 9.1.1 Synchronization pattern 28 9.1.2 Main ID (W1, W2) 28 9.1.3 Main ID parity 29 9.

24、1.4 Main data 29 9.2 Main data configuration 29 9.2.1 Main data allocation 30 9.2.2 Recording direction 30 9.3 Error correction and detection code(C1, C2) 30 9.3.1 Definition 30 9.3.2 Error correction code interleaving format 31 9.3.3 Parity symbol 32 9.4 Modulation 33 9.4.1 Parameters 33 9.4.2 Modu

25、lation method 33 10 Sub data area format 40 10.1 Sub data block format 40 10.1.1 Synchronization pattern 41 10.1.2 Sub ID (SW1, SW2) 41 10.1.3 Sub ID parity 41 10.1.4 Sub data 41 10.2 Sub data configuration 41 10.2.1 Sub data allocation 42 10.2.2 Recording direction 42 10.3 Error correction and dete

26、ction code (SP) 42 10.3.1 Definition 42 10.3.2 Error correction code interleaving format 43 10.3.3 Parity symbol 44 10.4 Modulation 44 Page 11 Audio encoding 44 11.1 Mode application 44 11.1.1 Audio encoding mode 44 11.1.2 System application 45 11.2 Source encoding 45 11.2.1 Emphasis 45 11.2.2 Numbe

27、r of audio channels 45 11.2.3 Sampling frequency 45 11.2.4 Sampling timing 45 11.2.5 Quantization 46 11.3 Word to symbol conversion 46 11.3.1 Audio data word 46 11.3.2 48k mode, 44k mode, 44k-WT mode and32k mode 47 11.3.3 32k-LP mode 47 11.3.4 32k-4CH mode 48 11.4 Interleave format 48 11.4.1 48k mod

28、e, 44kmode, 44k-WT mode and32k mode 48 11.4.2 32k-LP mode 49 11.4.3 32k-4CH mode 49 12 Sub code encoding for audio use 57 12.1 Sub code in main ID 57 12.1.1 ID1 to ID7 57 12.2 Sub code in sub ID 60 12.2.1 Configuration of sub ID 60 12.3 Sub code in sub data 61 12.3.1 Pack ID and pack location 61 12.

29、3.2 Configuration of pack 62 12.3.3 Assignment of pack item 63 12.4 Sub code in main data 69 12.4.1 Recognition word for compact disk (CD) sub code 69 12.4.2 Sub code for CD format 69 12.5 Application rules of sub code for pre-recorded tape 72 12.5.1 Classification of sub code recording 72 12.5.2 Ar

30、eas along tape longitude 72 12.5.3 Location of pack 73 12.5.4 Classification of catalog number and ISRC recording 73 12.5.5 TOC recording 73 12.6 Application rules of sub code for own-recorded tape 76 12.6.1 Classification of sub code recording 76 12.6.2 Recording function of sub code 76EN61119-1:19

31、94 BSI 12-1999 4 Page 12.6.3 Areas along tape longitude 76 12.6.4 Location of time code pack 79 12.6.5 Details for recording sub code 79 12.6.6 Rules of assemble-recording 85 12.7 Application rules in playback situation 85 12.7.1 Detection of identification code 85 12.7.2 Mechanical condition 85 12.

32、7.3 Shortening play 85 12.7.4 Display 85 12.7.5 Rules of searching 88 12.7.6 Beginning point of playback after searching 89 Annex A (normative) Transmissivity of the prism 90 Annex B (normative) Measurement method of the force required to open the slider 91 Annex C (informative) Abbreviations 91 Ann

33、ex D (informative) Explanations 92 Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications 95 Figure 1 Outside view of DAT cassette 9 Figure 2 Appearance of cassette, top view (lid closed) 10 Figure 3 Appearance of casse

34、tte, top view (lid open) 11 Figure 4 Appearance of cassette, bottom view (lid closed) 12 Figure 5 Appearance of cassette, bottom view (lid open) 13 Figure 6 Inner structure of cassette (tape path and light path) 14 Figure 7 Datum area 15 Figure 8 Hub 16 Figure 9 Hub clearance and limit of reel spind

35、le height 17 Figure 10 Lid configuration when rotated and opened over90 17 Figure 11 Hub lock and release 18 Figure 12 Label area of pre-recorded cassette 19 Figure 13 Track configuration (view on magnetic sensitive side) 21 Figure 14a ATF signal allocation (normal track mode) 25 Figure 14b ATF sign

36、al allocation (widetrack mode) 26 Page Figure 15 Recording signal in ATF 27 Figure 16a Interleave format(48kmode, 44k mode, 44k-WT modeand32k mode) plus azimuth track 51 Figure 16b Interleave format(48k mode, 44k mode, 44k-WT modeand32k mode) plus azimuth track 52 Figure 17a Interleave format (32k-L

37、P mode) plus azimuth track 53 Figure 17b Interleave format (32k-LP mode) minus azimuth track 54 Figure 18a Interleave format (32k-4CH mode) plus azimuth track 55 Figure 18b Interleave format (32k-4CH mode) minus azimuth track 56 Figure 19 CD format sub code in DAT 70 Figure 20 DAT frame and CD frame

38、 71 Figure 21 Example of encoding sub ID and pack (pre-recorded tape) 75 Figure 22 Lead-in area of PNS 77 Figure 23 Lead-in area of ATS 78 Figure 24 Lead-out area in case of0EE recording 79 Figure 25 U-TOC at the beginning of the first program 82 Figure 26 Examples of encoding sub ID and pack (own-r

39、ecorded tape) 84 Figure 27 An example of a program number display in playback and fast forward searching 86 Figure 28 An example of a program number display in rewind searching 86 Figure 29 An example of program time indication in playback 87 Figure 30 An example of absolute time indication in playb

40、ack 88 Figure 31 Beginning point of playback after searching 89 Figure A.1 Light path (prism) 90 Figure B.1 Measurement method of the force required to open the slider 91 Figure D.1 Hierarchy of format and relationship of IDs (format ID=00, data ID=0000) 93 Table 1 8 to10 modulation table 34 Table 2

41、 Example of TOC information for own-recorded tape 83EN61119-1:1994 BSI 12-1999 5 Introduction The IEC draws attention to the fact that it is probable that the specifications contained in this standard are the subject of one or more patents. The IEC has no precise information on the holders of such p

42、atents and cannot supply further details, but it is expected that the holders of such patents will be prepared to grant licences under reasonable and non-discriminatory terms. 1 Scope and object This part of IEC1119 is applicable to the digital audio tape (DAT) cassette system that records and/or pl

43、ays back digital information such as PCM encoded audio and/or other data. This part defines those parameters that affect the compatibility between cassettes and the associated tape recorders. It is also intended as a reference for manufacturers producing cassettes and/or tape recorders which are int

44、ended to conform with the system described in this part. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC1119. At the time of publication, the editions indicated were valid. All normative docu

45、ments are subject to revision, and parties to agreements based on this part of IEC1119 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.

46、IEC268-11:1987, Sound system equipment Part11: Application of connectors for the interconnection of sound system components. IEC268-12:1987, Sound system equipment Part12: Application of connectors for broadcast and similar use. IEC268-15:1987, Sound system equipment Part15: Preferred matching value

47、s for the interconnection of sound system components. IEC958:1989, Digital audio interface. IEC1119-2:1991, Digital audio tape cassette system (DAT) Part2: DAT calibration tape. IEC1119-3:1992, Digital audio tape cassette system (DAT) Part3: DAT tape properties. IEC1119-4:199x, Digital audio tape ca

48、ssette system (DAT) Part4: Method of measurement for DAT recorder (under consideration). IEC1119-5:199x, Digital audio tape cassette system (DAT) Part5: DAT for professional use (underconsideration). ISO3901:1986, Documentation International Standard recording code (ISRC). 3 Description of the syste

49、m The information carrier is a magnetic tape of3,81mm width wound on flangeless hubs which are located in a cassette containing a slider and a lid to protect the tape from accidental damages. The tape is of the metal powder type or its equivalent. The digital information is recorded using the helical scanning principle and can be erased by over-writing. The digital information is read by magnetic heads using an automatic track finding (ATF) scheme t