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悋惘忰 悋惘忰 悋 惡愕
慍惘 擧悋惘惡惘惆悋 愕悋惘
惘 愕悋慍 悵悽惘
愃悋惘 惡 惆擧惠惘 :悋愕惠悋惆
愕惘悋 悋忰惆 惘惠惷 愕惆 :悋惘悋悧
惡悋惘1393
惆: 惠悋惘悽 
≒愕悋 惆惘1877擧 愆惆 惠悴 惡惆 惘愕 惓惡惠 惴惘 惡 惠悴慍悋惠 惘 惡惘 擧悋惘 忰悋 惆惘 悋惆愕 惠悋愕 擧 擯悋
.悋惆 惷惡愀 惘悋 悋愕悋 惶惆悋 愆惡 惶惆悋 惠悋愕惠
≒惡惘 惘悋 惶惠 擧 愆惆 擯惘悋 惆愕惠擯悋 悋悽惠惘悋惺 惡 悴惘 擧惘愕 悴悋 悋 惡 悋惆愕 惆愕 悋慍 擧 惠愕愀 擧愆 悋
.惆  惷惡愀 悋 悋愕惠悋 悋惆 擧 惘
≒愕悋 惆惘 惡惘惘 悋1888 惆 惓惡惠 擧惘 悋惆 悋慍 惡惠惘 悋 惆悋惘 惆愕擧 擧 惘 惡惘 惠悋  惘悋 惶惆悋 擧 擧惘惆 擧愆
.惆 悋悽惠惘悋惺 惘悋 擯惘悋悋 惆愕惠擯悋
≒愕悋 惆惘1927惡悋惠惘 悋 惘擧悋愕 惡 惆愕惠惘愕 悋擧悋 慍惘悋 愆惆 悋悴悋 惶惺惠 悋 惆惘 惡慍惘擯 惠忰 悋擧惠惘擧 惷惡愀 擧愆
.惆 愕惘 惘悋 惠惘 愕悋惆 惠悴慍悋惠 
≒愕悋 惆惘1974拆悋悋 惠悋  惆惆 悋惘悋悧 悋 惆愕擧 惘 惡惘 惆悴惠悋 悽愀悋 惠惶忰忰 惡惘悋 惘悋 悋擯惘惠 惠悋愕惠 拆愕 擧拆悋
惆70悋 惡悋 惘悋 悛 悋 擧 愆惘惆 惆愕擧 悋 愕 愆惘擧惠 擧悋惘 惡悋CD 悋愕惠悋惆 慍惘 悋惘 悋慍  愆悋愕 
. 惆惆 悋惘悋悧 惡悋慍悋惘 惡 擧惆
≒愕悋 惆惘1996悋慍 惡悋惠惘 擧惠  惴惘惠 惡悋 惆  惆CD拆愆惘 悋 擧拆悋 惠愕愀 悋Apple, Dell,Sun..,悋惘悋悧 惡悋慍悋惘 惡
.愆惆
≒惡 悴惘 悋慍 悋 擧 惆悋愆惠 愕悋慍 悵悽惘 惴惘 惡 悴惆惆 悋 愕 惡 悋慍 悋愀悋惺悋惠 擧惆 悽惘 悋慍悋愆 悴惆惆 慍悋惘 惆惘
惆愕擧 悋惺惘惷Blu-Ray愕悋 惆惘2003惴惘惠 惡悋20.愆惆 悋 惆  惆 悋慍 惡愆惠惘 惡惘悋惡惘 2optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser Applications
:愃悋愀愕 愕悋慍 悵悽惘
.愆惆  忰愕惡 惘 愕悋慍 悵悽惘 惡 愕 愕悋慍 悵悽惘 惺 悋
)惆愕擧 拆 悋 惡悋 惘悋 愕悋慍悋 悵悽惘 惺 悋 悋Floppy Disk 擧悋愕惠 悋惘  (
愕悽惠 悋 惆愕擧)Hard Disk(.愆悋愕 
) 悋 惆悋惆 愕悋慍 悵悽惘 惺 悋 惆惘0悋1惓惡惠 愃悋愀愕 悋惆 擯惘 悴惠 惡悋 (
.擯惘惆惆 
≒悋 惘悋悋 愕悽惠 悋 惆愕擧 惆惘 悋惘 悋 悋慍 擯愕惠惘惆 悋愕惠悋惆 惠悋 悋惘慍
.惡悋愆惆  愕悽 惠惘惡悋 愕悋慍 悵悽惘 惺 悋 悋悋惺 愕悋惘  惡悋愆惆  愆悽惶
≒悋惺惆 惘愆 擧 .擯惘惆  惶惘惠 悋惺惆  愀 惘愆 惆 惡 愕悋慍 悵悽惘
.悛惆  忰愕悋惡 惡 惠惘 惡 惘愆
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 3
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 4
愕悋慍 悵悽惘 惡 惘 愕悋慍 悵悽惘 悋 慍惠
:愃悋愀愕
≒悋惡惠 悋 慍擧 悋惠惶悋 悋惺惆 惆 惡 惘 愕悋慍 悵悽惘 惆惘
悋 悛 惘 忰悋惴  擧 惡悋 悋愀悋惺悋惠 悋慍 擧 惆悋惘惆 悴惆
.愆惆 忰悋惴惠
≒悛愕惡 愃悋愀愕 悋 惆悋 惡惘悋惡惘 惆惘 愃悋愀愕 悋 惆愕擧
.惡悋愆惆  拆悵惘
≒惘悋 悋愀悋惺悋惠 悋慍 惡愆惠惘 擯悋 惠悋  惘 愕悋慍 悵悽惘 惆惘
.惆 悵悽惘
≒惡悋惠惘 悋 愕惘悋惺惠 惡 惠悋  惘 愕悋慍 悵悽惘 惆惘悋慍
.悋惠 惆愕惠 愃悋愀愕 愕悋慍 悵悽惘
≒惡愕悋惘 惘 愕悋慍 悵悽惘 惆惘 愆惆 悋愕惠悋惆 悛悋悋 惠
.悋愕惠 愃悋愀愕 悋惆 悋慍 悋惘慍悋惠惘
≒悋惺 惠悋惆  悽悋惶 惘擧悋愕 擧 惠悋 惘 愕悋 悵悽惘 惆惘
悋 惆悋 悋慍 愃悋愀愕 悋 惆愕擧 悋悋 惆惆 悋悴悋 惘悋 愆惠
.拆悵惘惆  惠悋惓惘 悽惠 愃悋愀愕
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 5
:惘 愕悋慍 悵悽惘
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 6
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 7
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 8
擧惆RLL:
≒悋愕惠悋惆 悛 悋慍 忰惆惆 惡悋惆 拆悋 惡悋 悋惘惠惡悋愀 擧悋悋 擧 惘 悋愀惺悋惠 悋惘愕悋 惡惘悋 擧 悋愕惠 惘愆
.愆惆 
RLL惠擧惘悋惘悋 惡惠 惠惺惆悋惆)runs(.悋惆慍悋 惆惘 惘悋
≒悋擯惘Run惘擧悋愕 惡悋愆惆 擧惠悋 悋擯惘  惡惆 悽悋惆 惆愆悋惘 慍悋 愕悋慍 擯悋 惡悋愆惆 愀 悋
.愆惆  惠惷惺 悋惘惠惡悋愀 擧悋悋 惠愕愀 惡悋 悋
≒惆惘CD,DVD,Blue-Ray擯悋  愆惆 愆悽惶 擧悋 悋 惡惠 惡 惘慍 擧 擧惆  擧擧 惘悋惆 悋
.悋惡惆 悋慍悋愆 惆愕擧 悋慍 惺 擧悋 擧 惆惘 愆惆 悵悽惘 悋 惆悋惆
≒悋惆 忰悋惠 惆惘 愆 悋愕惠 擧  悋愕惠 悋慍悋惘 愕悽惠 擧 惘 惆愕擧 悋擧 惆 惡 惓悋 惡惘悋
惠惘愆 擯惘惆愆 愕惘惺惠 擧惆 惠愃惘 愆擧愆 愆惆 悋惡悋惷 悋 悋惡愕悋愀 惆悋惘 惡悋愆惆 惆悋愆惠 惘悋惘 悛
. ...擧惆悋 悋慍 悋愕惠悋惆 惡惆 愕悋慍 慍悋 惶惘惠 悋 惆惘  悋惡惆 擧悋愆RLL悽悋惆 拆悵惘 悋擧悋
.惡惆
≒惆惘 惴惘 悋 惡惘悋CD/DVD悋慍 悋3惠悋11惆惘  惡惠 擧悋悋Blue-Ray悋慍 悋2惠悋8悋愕惠悋惆 擧悋悋
.愆惆 
≒惓悋(RLL 0,1)
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 9
Data: 0 0 1 0 1 1 0 1 0 0 0 1 1 0
Encoded: 1010111011111011101010111110
Clock: 1 1 1 1 1 1 1 1 1 1 1 1 1 1
:惘 愕悋慍 悵悽惘 惆惘 惆愕
≒擧惆  惠惺 惘悋 惆愕擧 惘 惡惘 悵悽惘 悋惡 悋愀惺悋惠 擯悋 悋擧慍 愀惺 惘擧悋愕.
≒悽愀 愕惘惺惠 惡悋 擧 惆愕擧 惡惘悋v:惆悋惘  悋愕惠 擯惘惆愆 惆惘
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 10
≒惡悋慍惠悋惡 惷惘惡 悋 惆愕擧 惘 悋惠愃惘 惺惠惠 愆擧 惆惘 惠愃惘 惠悋惆 惺悋惠
 慍惘 惺擧惘惆 悋 悋擧惠惘擧 惆惘 悋擧悋惠 惠悴悋惘 惠惘擧 惆 惠悋擧 擧惘悋愕 悛
.惡擯悵悋惘惆 惠 惠悋惓惘 惠惆愕 惡惘 惠悋惆 惠 ...
≒惡惘悋 愆 悋擯 惆 惠悋惡 愆擧 惆惘.a 擧悋惠 忰悋惠.b悋惶 忰悋惠
.悋愕惠 愆惆 惘愕 愆惆惠 惠惆愕 悋慍
≒愆擧 惠愀悋惡b.愆惆 惠 惘擧悋愕 悋悽惠  惡悋惺惓 悋 惶 忰惷惘
.愆惆 惠 悋惠惆 悴惠惘 悋惶 悋 惡悋愆惆 擯愕 愕悋悋惠 惠惡惺 悋擯惘
≒惘悋惡愀 惠愀悋惡 慍 惡 愕擯悋 愕惡惠 擧悋愆 惡悋惺惓 悴惠惘悋 悋 悋慍悋愆
:擯惘惆惆 惠 慍惘
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 11
: 擧愕擯
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 12
:惠惘擧擯
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 13
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 14
惠悋愕拆悋惘悋惠惠惘悋CD/DVD/BD
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 15
...愆悋 惠悴 悋慍 惠愆擧惘 惡悋
Any Questions?
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 16
Refrences:
Optical data storage, Phase changing media and recording by: Erwin R. Meinders, Andrei V.
Mijiritskii,Liesbeth van Pieterson and Matthias Wuttig
Lasers Principles and applications by: J.Wilson, J.F.B.Hawkes
http://en.wikipedia.org/wiki/Optical_storage
Types of Storage Devices , McGraw-Hill companies educations
http://www.research.philips.com/technologies/projects/cd/index.html
optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 17

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  • 7. optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 7
  • 8. optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 8
  • 9. 擧惆RLL: ≒悋愕惠悋惆 悛 悋慍 忰惆惆 惡悋惆 拆悋 惡悋 悋惘惠惡悋愀 擧悋悋 擧 惘 悋愀惺悋惠 悋惘愕悋 惡惘悋 擧 悋愕惠 惘愆 .愆惆 RLL惠擧惘悋惘悋 惡惠 惠惺惆悋惆)runs(.悋惆慍悋 惆惘 惘悋 ≒悋擯惘Run惘擧悋愕 惡悋愆惆 擧惠悋 悋擯惘 惡惆 悽悋惆 惆愆悋惘 慍悋 愕悋慍 擯悋 惡悋愆惆 愀 悋 .愆惆 惠惷惺 悋惘惠惡悋愀 擧悋悋 惠愕愀 惡悋 悋 ≒惆惘CD,DVD,Blue-Ray擯悋 愆惆 愆悽惶 擧悋 悋 惡惠 惡 惘慍 擧 擧惆 擧擧 惘悋惆 悋 .悋惡惆 悋慍悋愆 惆愕擧 悋慍 惺 擧悋 擧 惆惘 愆惆 悵悽惘 悋 惆悋惆 ≒悋惆 忰悋惠 惆惘 愆 悋愕惠 擧 悋愕惠 悋慍悋惘 愕悽惠 擧 惘 惆愕擧 悋擧 惆 惡 惓悋 惡惘悋 惠惘愆 擯惘惆愆 愕惘惺惠 擧惆 惠愃惘 愆擧愆 愆惆 悋惡悋惷 悋 悋惡愕悋愀 惆悋惘 惡悋愆惆 惆悋愆惠 惘悋惘 悛 . ...擧惆悋 悋慍 悋愕惠悋惆 惡惆 愕悋慍 慍悋 惶惘惠 悋 惆惘 悋惡惆 擧悋愆RLL悽悋惆 拆悵惘 悋擧悋 .惡惆 ≒惆惘 惴惘 悋 惡惘悋CD/DVD悋慍 悋3惠悋11惆惘 惡惠 擧悋悋Blue-Ray悋慍 悋2惠悋8悋愕惠悋惆 擧悋悋 .愆惆 ≒惓悋(RLL 0,1) optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 9 Data: 0 0 1 0 1 1 0 1 0 0 0 1 1 0 Encoded: 1010111011111011101010111110 Clock: 1 1 1 1 1 1 1 1 1 1 1 1 1 1
  • 10. :惘 愕悋慍 悵悽惘 惆惘 惆愕 ≒擧惆 惠惺 惘悋 惆愕擧 惘 惡惘 悵悽惘 悋惡 悋愀惺悋惠 擯悋 悋擧慍 愀惺 惘擧悋愕. ≒悽愀 愕惘惺惠 惡悋 擧 惆愕擧 惡惘悋v:惆悋惘 悋愕惠 擯惘惆愆 惆惘 optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 10
  • 11. ≒惡悋慍惠悋惡 惷惘惡 悋 惆愕擧 惘 悋惠愃惘 惺惠惠 愆擧 惆惘 惠愃惘 惠悋惆 惺悋惠 慍惘 惺擧惘惆 悋 悋擧惠惘擧 惆惘 悋擧悋惠 惠悴悋惘 惠惘擧 惆 惠悋擧 擧惘悋愕 悛 .惡擯悵悋惘惆 惠 惠悋惓惘 惠惆愕 惡惘 惠悋惆 惠 ... ≒惡惘悋 愆 悋擯 惆 惠悋惡 愆擧 惆惘.a 擧悋惠 忰悋惠.b悋惶 忰悋惠 .悋愕惠 愆惆 惘愕 愆惆惠 惠惆愕 悋慍 ≒愆擧 惠愀悋惡b.愆惆 惠 惘擧悋愕 悋悽惠 惡悋惺惓 悋 惶 忰惷惘 .愆惆 惠 悋惠惆 悴惠惘 悋惶 悋 惡悋愆惆 擯愕 愕悋悋惠 惠惡惺 悋擯惘 ≒惘悋惡愀 惠愀悋惡 慍 惡 愕擯悋 愕惡惠 擧悋愆 惡悋惺惓 悴惠惘悋 悋 悋慍悋愆 :擯惘惆惆 惠 慍惘 optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 11
  • 12. : 擧愕擯 optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 12
  • 13. :惠惘擧擯 optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 13
  • 14. optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 14
  • 15. 惠悋愕拆悋惘悋惠惠惘悋CD/DVD/BD optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 15
  • 16. ...愆悋 惠悴 悋慍 惠愆擧惘 惡悋 Any Questions? optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 16
  • 17. Refrences: Optical data storage, Phase changing media and recording by: Erwin R. Meinders, Andrei V. Mijiritskii,Liesbeth van Pieterson and Matthias Wuttig Lasers Principles and applications by: J.Wilson, J.F.B.Hawkes http://en.wikipedia.org/wiki/Optical_storage Types of Storage Devices , McGraw-Hill companies educations http://www.research.philips.com/technologies/projects/cd/index.html optical storage presentation - - - By: Seyed Morteza Ahmadi - - - Seminar of: Laser applications 17