ANSI INCITS ISO IEC 14517-1996 Information technology - 130 mm optical disk cartridges for information interchange - Capacity 2 6 Gbytes per cartridge (Adopted by INCITS).pdf
《ANSI INCITS ISO IEC 14517-1996 Information technology - 130 mm optical disk cartridges for information interchange - Capacity 2 6 Gbytes per cartridge (Adopted by INCITS).pdf》由会员分享,可在线阅读,更多相关《ANSI INCITS ISO IEC 14517-1996 Information technology - 130 mm optical disk cartridges for information interchange - Capacity 2 6 Gbytes per cartridge (Adopted by INCITS).pdf(145页珍藏版)》请在麦多课文档分享上搜索。
1、INTERNATIONAL STANDARD ISOAEC 14517 First edition 1996-12-15 Corrected and reprinted 1998-07-l 5 Information technology - 130 mm optical disk cartridges for information interchange - Capacity: 2,6 Gbytes per cartridge Technologies de /information - Cartouches de disque opfique de 130 mm pour / - the
2、 environments in which the cartridges are to be operated and stored; - the mechanical, physical and dimensional characteristics of the cartridge, so as to provide mechanical interchangeability between data processing systems; - the format of the information on the disk, both embossed and user-writte
3、n, including the physical disposition of the tracks and sectors, the error correction codes, the modulation methods used; - the characteristics of the embossed information on the disk; - the magneto-optical characteristics of the disk, enabling processing systems to writedata onto the disk; - the mi
4、nimum quality of user-written data on the disk, enabling data processing systems to read data from the disk. This International Standard provides for interchange between optical disk drives. Together with a Standard for volume and file structure it provides for full data interchange between data pro
5、cessing systems. ISOAEC 14517:1996 (E) OlSO/lEC 2 Conformance 2.1 Optical Disk Cartridge: A claim of conformance shall specify the Type of the ODC. It shall be in conformance with this International Standard if it meets all mandatory requirements specified therein for that Type. 2.2 Generating syste
6、m: A claim of conformance with this International Standard shall specify which of Types R/W, DOW, P-ROM, P-DOW, O-ROM, WO and WO-DOW is(are) supported. A system generating an ODC for interchange shall be in conformance with this International Standard if it meets the mandatory requirements of this S
7、tandard for the Type(s) supported. 2.3 Receiving system: A claim of conformance with this International Standard shall specify which Type(s) is(are) supported. A system receiving an ODC for interchange shall be in conformance with this International Standard if it is able to process any recording ma
8、de on the cartridge according to 2.1 on the Type(s) specified. 2.4 Compatibility statement: A claim of conformance with this International Standard shall include a statement listing any other International Optical Disk Cartridge Standard supported by the system for which conformance is claimed. This
9、 statement shall specify the number of the standard(s), including, where appropriate, the ODC Type(s), or the Types of side, and whether support includes reading only or both reading and writing. 3 Normative reference The following standard contains provisions which, through reference in this text,
10、constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition o
11、f the standard indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IEC 950: 199 1, Safety of information technology equipment, including electrical business equipment. 4 Definitions For the purposes of this International Standard, the following defi
12、nitions apply. 4.1 band: An annular area within the user zone on the disk having a constant clock frequency. 4.2 case: The housing for an optical disk, that protects the disk and facilitates disk interchange. 4.3 clamping zone: The annular part of the disk within which the clamping force is applied
13、by the clamping device. 4.4 control track: A track containing the information on media parameters and format necessary for writing, reading and erasing the remaining tracks on the optical disk. 4.5 Cyclic Redundancy Check (CRC): A method for detecting errors in data. 4.6 defect management: A method
14、for handling the defective areas on the disk. 4.7 direct overwrite: a thermo-magnetic recording method using a specially designed media that does not require a separate erase pass. 4.8 disk reference plane: A plane defined by the perfectly flat annular surface of an ideal spindle onto which the clam
15、ping zone of the disk is clamped, and which is normal to the axis of rotation. 4.9 entrance surface: The surface of the disk on to which the optical beam first impinges. 4.10 Error Correction Code (ECC): A n error-detecting code designed to correct certain kinds of errors in data. 4.11 format: The a
16、rrangement or layout of information on the disk. 4.12 hub: The central feature on the disk which interacts with the spindle of the disk drive to provide radial centring and the clamping force. 4.13 interleaving: The process of allocating the physical sequence of units of data so as to render the dat
17、a more immune to burst errors. OISO/IEC ISO/IEC 14517:1996 (E) 4.14 Kerr rotation: The rotation of the plane of polarization of an optical beam upon reflection from the recording layer as caused by the magneto-optical Kerr effect. 4.15 land and groove: A trench-like feature of the disk, applied befo
18、re the recording of any information, and used to define the track location. The groove is located nearer to the entrance surface than the land with which it is paired to form a track. 4.16 logical track: Either 3 1 consecutive sectors for 5 1Zbyte sector disks or 17 consecutive sectors for disks wit
19、h 1 024- byte sector in one or more physical tracks. The first sector of each logical track is assigned sector number 0. 4.17 mark: A feature of the recording layer which may take the form of a magnetic domain, a pit, or any other type or form that can be sensed by the optical system. The pattern of
20、 marks represents the data on the disk. NOTE - Subdivisions of a sector which are named “mark” are not marks in the sense of this definition. 4.18 mark edge: The transition between a region with a mark and one without a mark or vice versa, along the track. 4.19 mark edge recording: A recording metho
21、d which uses a mark edge to represent a Channel bit. 4.20 optical disk: A disk that will accept and retain information in the form of marks in a recording layer, that can be read with an optical beam. 4.21 optical disk cartridge (ODC): A d evice consisting of a case containing an optical disk. 4.22
22、physical track: The path which is followed by the focus of the optical beam during one revolution of the disk. This path is not directly addressable. 4.23 polarization: The direction of polarization of an optical beam is the direction of the electric vector of the beam. NOTE The plane of polarizatio
23、n is the plane containing the electric vector and the direction of propagation of the beam. The polarization is right-handed when to an observer looking in the direction of propagation of the beam, the end-point of the electric vector would appear to describe an ellipse in the clockwise sense. 4.24
24、pre-recorded mark: A mark so formed as to be unalterable by magneto-optical means. 4.25 read power: The read power is the optical power, incident at the entrance surface of the disk, used when reading. NOTE - It is specified as a maximum power that may be used without damage to the written data. Low
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ANSIINCITSISOIEC145171996INFORMATIONTECHNOLOGY130MMOPTICALDISKCARTRIDGESFORINFORMATIONINTERCHANGECAPACITY26GBYTESPERCARTRIDGEADOPTEDBYINCITSPDF
链接地址:http://www.mydoc123.com/p-436168.html