Wednesday, October 22, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
LG Display Reports Strong Third Quarter 2014 Results
Moto 360 Android Wear Updated
Canon Announces the Second-Generation EOS C100 Mark II Digital Video Camera
G.Skill Introduces The Phoenix Blade 480GB PCIe SSD
Microsoft Is Rolling Out First New Windows 10 Preview Build
Yahoo Reports High Revenue and Profit
New Samsung Galaxy S5 'Plus' Released With Faster Processor
Google, Facebook And Comcast Spend The Most On Lobbying
Active Discussions
Copied dvd's say blank in computer only
How to generate lots of different CDs quickly
Yamaha CRW-F1UX
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
 Home > News > Optical Storage > Hitachi...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, September 24, 2012
Hitachi Develops Long-term Data Archival Method Using Glass Slivers


Hitachi has developed a method of writing and reading digital information on slivers of quartz glass, offering a reliable way to safely store data, almost for ever.

Hitachi's new technology uses a laser to store data in binary form by creating dots inside a thin sheet of quartz glass, which can be read with an ordinary optical microscope. Data can be stored in many layers inside the quartz glass, by changing the focus point of the laser - a technique also met in multi-layered recordable optical discs.

The laser used for data recording is emitting ultrashort pulses of light, electromagnetic pulses whose time duration is of the order of a femtosecond. Hitachi has also developed a recording technology that uses a spatial phase modulator, which modulates both the phase and the amplitude of the laser beam. This results to a higher recording of up to 100 dots at a time, Hitachi said.

Reading of the stored data is achieved by using an ordinary optical microscope. By applying signal processing techniques to the read-out signal, Hitachi's researchers have achieved an error-free reading with a reproduction SNR of just 15dB.

The prototype storage device is two centimetres square and just two millimetres thick. It is resistant to many chemicals and unaffected by radio waves, can be exposed directly to high temperature flames and heated to 1,000 degrees Celsius for at least two hours without being damaged. It is also waterproof, meaning it could eventually store data for hundrends of years.

The material currently has four layers of dots, which can hold 40 MB per square inch, approximately the density on a music CD (35MB). More layers can be also added to future prototypes.

Hitachi have not decided when to put the chip to practical use.

The company will present a related paper at this year's International Symposium on Optical Memory (ISOM2012,) which willbe held in Tokyo, Japan, in September 30, 2012.


Previous
Next
AMD Releases AMD CodeXL Developer Tool Suite for Heterogeneous Compute        All News        Nufront Extends Licensing Deal With ARM
Nero 12 Multimedia Suite Released     Optical Storage News      Sony's Optical Disc Archive System To Be Relased Next Month

Get RSS feed Easy Print E-Mail this Message

Related News
Hitachi HDDs Have The Lowest Failure Rate: report
Hitachi Combines SSD Tier And SSD Cache Methods in Tiered Storage Systems
Hitachi Brings New Flash, Unified Storage and Converged Solutions
HGST Launches the 1.5TB Mobile Hard Drive
Maxell Introduces First iVDR, BD, HDD Combo Recorder
Hitachi Maxell To Take Over Hitachi's LCD projector Business
Hitachi Says Hybrid Storage Pools Are Superior Than HDD, SSD Configurations
HGST Launches 1.2TB, 10K RPM Hard Drive
HGST Releases 1TB, 7200 2.5-inch Mobile Hard Drive
Hitachi To Stop Making Semiconductors by 2014
New Flash Module From Hitachi Data Systems Promises Superior Performance, Capacity and Reliability
HDS Aims At Enterprise-level Performance And Reliability With Cheaper MLC Flash Controller

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .