logging in or signing up bluray disc aSGuest81087 Download Post to : URL : Related Presentations : Let's Connect Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 5072 Category: Science & Tech.. License: All Rights Reserved Like it (1) Dislike it (0) Added: January 05, 2011 This Presentation is Public Favorites: 3 Presentation Description No description available. Comments Posting comment... By: pinisharma13 (30 month(s) ago) plz snd ppt on blu ray disc on my firstname.lastname@example.org you Saving..... Post Reply Close Saving..... Edit Comment Close By: amanullah90 (38 month(s) ago) please send ppt for blu ray disc on my mail email@example.com Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: 1 B.Chitti babu 07X11A1211Slide 2: CONTENTS Introduction Characteristics of Blu-ray disc Specification of Blu-ray disc Comparision of storage technologies Applications Conclusion 2Slide 3: 1 st GENERATION : Compact Disc (CD): -- 650/700MB It is with us for over 20 yrs. Wavelength of laser which reads data: 780nm Color of laser: Red 2nd GENERATION : Digital V ersatile Disc (DVD): -- 4.7GB It offers high quality sound and video than CD. Wavelength of laser which reads data: 650nm Color of laser: Red INTRODUCTION 3Slide 4: 3 RD GENERATION: Blu-ray disc (BD): -- 25/50 GB Next generation optical disc format. Wavelength of laser that reads data: 405nm Color of laser: Blue-violet which was developed by SHUJI NAKAMURA at NICHIA COPERATION. The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. The “ e ” was intentionally left out of the name due to trademark restrictions INTRODUCTION 4Slide 5: CHARACTERISTICS OF BLU-RAY Life Span Cost Capacity Robustness of disc Compatible 5Slide 6: 6 Life Span In the case of ordinary discs, the disc life is less . In the rewritable versions, as re-writing is done repeatedly to one area of the disc most probably, the inner perimeter limiting the disc life. BDFS (Blu-ray Disc File Structure is designed so as to avoid this problem, by using a system that uses free disc spaces with equal frequency Cost Long term Profitability model for content Providers Cheapest Production costSlide 7: 7 Capacity The Blu-ray disc enables the recording, rewriting and playback of HD video up to 27 GB of data on a single sided single layer. It is enough to put 2.5 hours of HDTV recording on it. It also can record over 13 hours of standard TV broadcasting .Slide 8: 8 Robustness of Disc Stronger resistance to scratches and fingerprints The protective layer is hard enough to prevent accidental abrasions and allows fingerprints to be removed by wiping the disc with a tissue. Compatible The BD drives are designed to be backward compatible , i.e. CDs and DVDs work equally well with the BD drives.Slide 9: 9Slide 10: 10 BD SPECIFICATIONS Capacity 23.3,25,27GB ; 50 ,54 GB ; (single layer) (Double layer) Wave length of the laser 405nm Numerical Aperture of the objective lens 0.85 Data transfer rate 36Mbps Thickness of the disc 1.2mm Diameter of the center hole 15mm Data track Groove recording Visual data MPEG-2 videoSlide 11: 11 Comparison of CD,DVD and B D specification Parameter CD DVD BD . Disk diameter 120 mm 120 mm 120 mm Disk thickness 1.2 mm 1.2 mm 1.2 mm Laser wavelength 780nm 650 nm 405 nm Numerical aperture 0.45 0.60 0.85 Minimum pit length 0.83um 0.4 um 0.138 um Data rate 1.2 Mb/sec 11 Mb/sec 36 Mb/sec Number of sides one ----- one or two Number of data layers One ----- One or two Data capacity ~680 MB 4.7 GB (1L) 27 GB 8.5 GB (2L) 54 GBSlide 12: 12Slide 13: 13Slide 14: 14 Blu-ray disc and CD’s /DVD’s 1 DVD = 5 to 10 CD’s 1 Blu-ray = 5 to 10 DVD’s !!!!!! Usage of a blue instead of a red laser Improved lens specifications Backward compatibility ( Comparison Between Blu-ray n others)Slide 15: 15 Blu-ray Disc APPLICATIONS High definition television recording High definition video distribution High definition camcorder archiving Mass data storageSlide 16: 16Slide 17: 17 CONCLUSION The blu-ray discs offers more storage capability up to 54 GB,enough to hold about 4.5 hours of high –definition video or more than 20 hours of standard video. It is very likely that the technology will be adopted as the next generation optical disc format for pc storage and replace technologies such as DVD+-R ,DVD+-RW and DVD-RAMSlide 18: 18 Queries..?Slide 19: 19 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.