1、BRITISH STANDARD BS ISO/IEC TR 10091:1995 Implementation of ISO/IEC TR 10091:1995 Information technology Technical aspects of130mm optical disk cartridge write-once recording formatBSISO/IEC TR 10091:1995 This British Standard, having been prepared under the directionof the Information Systems Techn
2、ology Assembly, was published under the authorityof the Standards Boardand comes into effect on 15 July1995 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference IST/4 Draft announced in BSI News inApril 1995 ISBN 0 580 24371 0 Committees responsible for t
3、his British Standard The preparation of this British Standard was entrusted to Technical Committee IST/4, Magnetic and optical media for digital data interchange, upon which the following bodies were represented: British Computer Society Co-opted UK Expert Future Technology Institute of Quality Assu
4、rance Institution of Electrical Engineers International Computers Limited Kodak Limited Amendments issued since publication Amd. No. Date CommentsBSISO/IEC TR 10091:1995 BSI 01-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword v Text of ISO/IEC TR 10091 1BS
5、ISO/IEC TR 10091:1995 ii BSI 01-2000 National foreword This British Standard reproduces verbatim ISO/IEC TR10091:1995 and implements it as the UK national standard. This British Standard is published under the direction of the Information Systems Technology Assembly whose Technical Committee IST/6 h
6、as the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInte
7、rnational and European Standards, as well as overseas standards, are available from Customer Services, BSI,389 Chiswick High Road, London W44AL. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct app
8、lication. 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 cover, pagesi andii, theISO/IEC TR title page, pages ii to vi, pages1 to58 and a back cover. This standard has been updated
9、(see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.ISO/IEC TR 10091:1995(E) ii BSI 01-2000 Contents Page Foreword v Section 1. General 1 Scope 1 2 References 1 3 Recording area and control track 1 4 Physical control
10、track format 2 4.1 General aspects 2 4.2 Phase Encoded Part (PEP) 2 4.3 Standard Formatted Part (SFP) 4 Section 2. Type A format 5 CCS 5 6 Track Format 5 7 Sector Format 5 7.1 Sector Mark 7 7.2 VFO Areas 8 7.3 Address Mark 11 7.4 ID field 11 7.5 Offset Detection Flag (ODF) 13 7.6 Gap 13 7.7 Flag 14
11、7.8 ALPC 14 7.9 Sync 15 7.10 Data field 16 7.11 Resync 18 7.12 Buffer 19 7.13 Delete pattern (Optional) 19 8 Error detection and correction 20 9 Modulation method 21 Section 3. Type B format 10 Sampled Servo 23 11 Prerecorded signal properties 23 11.1 Schematic diagram of the disk mastering system 2
12、3 11.2 Signal amplitude of the prerecorded signal 24 11.3 Tracking error signal 26 11.4 Wobble marks 28 11.5 Clock mark 29 12 Sector header 31 12.1 Sector header format 31 12.2 Functionality of each part in the sector header 32 12.3 Reliability of the header information 32 13 Error detection and cor
13、rection 34 13.1 Error correction capability 34 13.2 Estimated chip size of the LSI for EDAC 37 13.3 Correction time 37 14 4/15 Modulation and differential detection 37 14.1 Modulation coding 37 14.2 Differential detection 40 14.3 Implementation 45 Annex A Reliability with 3 Ids (for Type A format) 5
14、0 Annex B Comments on error distribution (for Type A format) 52ISO/IEC TR 10091:1995(E) BSI 01-2000 iii Page Annex C Read write operation table (for Type A format) 55 Annex D Comments on read characteristics (for Type A format) 55 Figure 1 Example of pit recording in PEP 3 Figure 2 Comparison of rob
15、ustness between two different header formats 7 Figure 3 SM detecting circuit 8 Figure 4 SM detecting action 8 Figure 5 VFO fields 10 Figure 6 Block diagram 10 Figure 7 Observed pull-in response of PLL 11 Figure 8 ID detecting circuit 12 Figure 9 ID detecting timing chart 12 Figure 10 Generation of t
16、rack offset signal 13 Figure 11 Characteristics of laser diodes 15 Figure 12 Timing chart of Sync detection 16 Figure 13 Sync detecting circuit 16 Figure 14 Continuous servo data block configuration 17 Figure 15 Continuous servo data block configuration 18 Figure 16 Delete pattern 20 Figure 17 Schem
17、atic diagram of pit position recording 21 Figure 18 Density ratio and window length of typical modulation code 22 Figure 19 A schematic diagram of the mastering system for the sampled formatted disk 23 Figure 20 The definition for the amplitude of a prerecorded signal 24 Figure 21 The full width at
18、half maximum amplitude (FWHM) vs.mark length 25 Figure 22 Off-centring of the beam spot $ plotted against the difference between two wobble marks 26 Figure 23 Tracking error signal normalized by Io 27 Figure 24 Prerecorded signal amplitude Ip/Io and tracking error signal amplitude A vs mark length 2
19、8 Figure 25 Tracking error signal vs wobble mark displacement from the track centre 29 Figure 26 Block diagram of the mark position displacement measurement system 30 Figure 27 Mark position displacement spectrum of inner track (r = 33 mm) 30 Figure 28 Mark position displacement spectrum at outer tr
20、ack (r = 59 mm) 31 Figure 29 Header structure 31 Figure 30 Reading an address during seek 32 Figure 31 Reliability of header information 33 Figure 32 Defect rate vs defect length (bits) in L-M model 34 Figure 33 Assumed pattern of random errors 36 Figure 34 Assumed pattern of short burst errors 36 F
21、igure 35 Sector error rate plotted against error event rate/bit 37 Figure 36 Typical waveforms of the CD-channel 41 Figure 37 Schematic diagram of simple threshold detection 41 Figure 38 Schematic diagram of improved threshold detection 42ISO/IEC TR 10091:1995(E) iv BSI 01-2000 Page Figure 39 The am
22、plitude and phase margin of the eye pattern 42 Figure 40 Variations of eye patterns with locations of information pit 43 Figure 41 Amplitude margin of differential detection 43 Figure 42 Effects of distorted signals on detection capability 44 Figure 43 The first example of 4/15 decoder, a straight f
23、orward approach 46 Figure 44 The second example of 4/15 decoder 47 Figure 45 One example of the read signal based on the 4/15 code 48 Figure 46 The third example of 4/15 decoder 49 Figure B.1 Defect distribution 53 Figure B.2 Error correction capability (Case 1 and 2) 54 Figure D.1 Conforming area o
24、f read characteristics 57 Table 1 Formatted Zone 1 Table 2 PEP summary 3 Table 3 Sector field functions 6 Table 4 Defect Management Pointer information 17 Table 5 RLL(2,7) Code Conversion 21 Table 6 4/15 recorded symbols for the least significant4 bits of a user data byte 38 Table 7 4/15 recorded sy
25、mbols for the most significant4 bits of a user data byte 39 Table 8 4/15 recorded symbols reserved for special functions 40 Table A.1 Experimental data on ID read error 50 Table A.2 Experimental data on error occurrence in a sector 51 Table A.3 Occurrence probability of defective sectors by failing
26、to detect ID and number of defective sectors 51 Table C.1 Read operation table 55 Table C.2 Write operation table 55 Table D.1 Read characteristics 58ISO/IEC TR 10091:1995(E) BSI 01-2000 v Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical C
27、ommission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity.
28、 ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee,
29、 ISO/IECJTC1. The main task of technical committees is to prepare International Standards, but in exceptional circumstances a technical committee may propose the publication of a Technical Report of one of the following types: type1, when the required support cannot be obtained for the publication o
30、f an International Standard, despite repeated efforts; type2, when the subject is still under technical development or where for any other reason there is the future but not immediate possibility of an agreement on an International Standard; type3, when a technical committee has collected data of a
31、different kind from that which is normally published as an International Standard (“state of the art”, for example). Technical Reports of types1 and2 are subject to review within three years of publication, to decide whether they can be transformed into International Standards. Technical Reports of
32、type3 do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful. ISO/IEC TR10091, which is a Technical Report of type3, was prepared by Joint Technical Committee ISO/IECJTC1, Information technology, Subcommittee SC23, Optical disk cartridges fo
33、r information interchange.vi blankISO/IEC TR 10091:1995(E) BSI 01-2000 1 Section 1. General 1 Scope This Technical Report is a complement toISO/IEC9171-2 for the Type A and B formats. This Technical Report covers the figures that characterize each format, the relationship between these figures, and
34、the technological background used to reach decisions concerning the formats; in addition it gives some examples of implementation. 2 References ISO/IEC 9171-1:1990, Information technology130mm optical disk cartridge, write once, for information interchange Part1: Unrecorded optical disk cartridge. I
35、SO/IEC 9171-2:1990, Information technology130mm optical disk cartridge, write once, for information interchange Part2: Recording format. 3 Recording area and control track The recording area and control tracks are divided as given inTable 1. The dimensions are for reference only, they are nominal po
36、sitions (seeISO/IEC9171-2 clause4). Table 1 Formatted Zone The inner radius of the Formatted Zone shall be at least27,0mm to avoid interference with the Clamping Zone. The format of the Reflective Zone is not specified but it shall have the same reflective recording layer as the rest of the Recordin
37、g Zone. Servo information (grooves or pits) is not required in the Reflective Zone. The width of the PEP Zone is determined by the requirements for the accuracy of the drive head positioning system. The width of0,5mm for the PEP Zone is sufficient for stable operation of the drive actuator mechanism
38、. Since grooves are not required in the PEP Zone, the track pitch may be changed to make it easier to read out the PEP without using a tracking servo. A Transition Zone for SFP is provided to enable the optical head to move from the PEP Zone to the SFP Zone, which requires a period for changing the
39、translation mode of the optical head at the transition point from the PEP Zone to the SFP Zone in the mastering process. The Transition Zone for the SFP Zone can be an unrecorded area. Considering the accuracy of control of the media mastering equipment, the starting position of the outer SFP is to
40、be determined relative to the starting position of the inner control track and the tolerance built-up over the mastered area. Within the Manufacturer Test Zone, it is recommended to have the same header format as that of the UserZone. There shall be no pre-recorded information on tracks between60,50
41、mm and61,00mm. Reflective Zone 27,00 mm to 29,00 mm Control Track PEP Zone 29,00 mm to 29,50 mm Transition Zone for SFP 29,50 mm to 29,52 mm Inner Control Track SFP Zone 29,52 mm to 29,70 mm Inner Manufacturer Zone 29,70 mm to 30,00 mm Guard Band 29,70 mm to 29,80 mm Manufacturer Test Zone 29,80 mm
42、to 29,90 mm Guard Band 29,90 mm to 30,00 mm User Zone 30,00 mm to 60,00 mm Outer Manufacture Zone 60,00 mm to 60,15 mm Outer Control Track SFP Zone 60,15 mm to 60,50 mm (maximum) Lead-Out Zone 60,50 mm to 61,00 mmISO/IEC TR 10091:1995(E) 2 BSI 01-2000 4 Physical control track format There are two re
43、cording methods for the control track information to be placed into three different areas (PEP Zone, Inner and Outer SFP Zones). The first method shall be used for the PEP (Phase Encoded Part) and the second method for the SFP (Standard Format Part). The PEP is recorded at the innermost radius and i
44、s recorded independently of the format (A or B) chosen for the rest of the disk. This common PEP recording method allows a drive that is set up for either format A or format B to read the PEP information. The PEP is intended to be read without requiring that servo tracking be established by the driv
45、e. The SFP Zones must be recorded in the same format as the rest of the disk, (either format A or format B). It contains additional information plus a duplication of the information in the PEP, so there is no requirement that the PEP be read by every drive. 4.1 General aspects The control track area
46、s provide information about the media that may be used to optimize the read and write characteristics of the drive. The innermost recorded zone, PEP, is recorded using low frequency phase encoded modulation, which can be read independently of the characteristics of the servo method of the drive. To
47、facilitate drive compatibility with various media types, there is a hierarchy of information supplied, beginning with the cartridge. The cartridge identifier sensor holes supply information to read the PEP. The PEP supplies enough information to read the SFP, and the SFP supplies information to opti
48、mize write and read operations on user data. A drive can then be adjusted by using each source of information in turn leading to the ability to read and/or write user data with optimal efficiency. The number of sectors per track in the SFP area equals the number of sectors per track at track No.0. T
49、he outer SFP area begins at track No.N+96where N is the track number of the last track of the User Zone, and continues until radius60,5mm. 4.2 Phase Encoded Part (PEP) The maximum power applied to the media to read the PEP Zone of the Control Track shall not exceed0,50mW. The low density of the PEP allows a high tolerance for media defects and permits decoding the information with a microprocessor instead of a dedicated
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