Holographic Versatile Disc
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The Holographic Versatile Disc (HVD) is an optical disc technology that was expected to store up to several terabytes of data on an optical disc 10 cm or 12 cm in diameter. Its development commenced in April 2004, but it never arrived due to lack of funding. The company responsible for HVD went bankrupt in 2010.[2]
The reduced radius reduces cost and materials used. It employs a technique known as collinear
Standards for 100 GB read-only holographic discs and 200 GB recordable cartridges were published by
Technology
Current optical storage saves one bit per pulse, and the HVD alliance hoped to improve this efficiency with capabilities of around 60,000 bits per pulse in an inverted, truncated cone shape that has a 200 μm diameter at the bottom and a 500 μm diameter at the top. High densities are possible by moving these closer on the tracks: 100 GB at 18 μm separation, 200 GB at 13 μm, 500 GB at 8 μm, and most demonstrated of 5 TB for 3 μm on a 10 cm disc.[citation needed]
The system used a green laser, with an output power of 1 watt which is high power for a consumer device laser. Possible solutions include improving the sensitivity of the polymer used, or developing and commoditizing a laser capable of higher power output while being suitable for a consumer unit.[citation needed]
Competing technologies
HVD is not the only technology in high-capacity, holographic storage media.
Holography System Development Forum
The Holography System Development Forum (HSD Forum; formerly the HVD Alliance and the HVD FORUM) is a coalition of corporations purposed to provide an industry forum for testing and technical discussion of all aspects of HVD design and manufacturing.
As of March 2012[update], the following companies are members of the forum:[9]
- CBCGroup
- Daicel
- FujiFilm
- Konica Minolta Inc.
- Kyoeisha
- Pulstec
- Shibaura Mechatronics Corporation
- Oracle Corporation
- Teijin Chemicals Ltd.
- Tokiwa Optical Corporation
As of March 2012[update], the following companies are supporting companies of the forum:
- Kodate Laboratory
Standards
On December 9, 2004, at its 88th General Assembly, the standards body Ecma International created Technical Committee 44, dedicated to standardizing HVD formats based on Optware's technology.
On June 11, 2007, TC44 published the first two HVD standards:[10] ECMA-377,[4] defining a 200 GB HVD "recordable cartridge" and ECMA-378,[5] defining a 100 GB HVD-ROM disc. Its next stated goals were 30 GB HVD cards and submission of these standards to the International Organization for Standardization for ISO approval.[11]
General Electric
General Electric Global Research Centers created a holographic disc that could hold many times the data of a Blu-Ray — up to 500 GB.[12] As the technology is quite similar to CD, DVD, and Blu-ray technologies, the players were to be cross-compatible with these formats.
See also
- DVD
- Compact Disc
- Blu-ray
- HD DVD
- Ultra Density Optical (UDO)
- Professional Disc for DATA(PDD or ProDATA)
- Holographic memory
- 3D optical data storage
- Magneto-optical drive (MO)
- Holographic Versatile Card
- Stacked Volumetric Optical Disk(SVOD)
- InPhase Technologies
References
- ISBN 9781305482210.
- ^ "Holographic storage bites the dust". ZDNET. February 18, 2010. Retrieved January 4, 2021.
- ^ "What's New". August 23, 2004. Archived from the original on October 9, 2004.
- ^ a b "Information Interchange on Holographic Versatile Disc (HVD) Recordable Cartridges – Capacity: 200 Gbytes per Cartridge". ECMA-377.
- ^ a b "Information Interchange on Read-Only Memory Holographic Versatile Disc (HVD-ROM) – Capacity: 100 Gbytes per disk". ECMA-378.
- ^ "Maxell focuses on holographic storage". CNET News.com. November 28, 2005. Archived from the original on July 22, 2012. Retrieved May 28, 2007.
- ^ "Hitachi-Maxell to Ship Holographic Storage this Year". DailyTech. August 3, 2006. Archived from the original on March 6, 2012. Retrieved May 28, 2007.
- ZDNet.
- ^ "HSD FORUM - HSDフォーラムについて / 会員リスト". Archived from the original on March 13, 2012.
- ^ "Ecma releases new Holographic Information Storage Standards". Ecma press release. July 4, 2007.
- ^ "Ecma standardizes Holographic Information Storage" (PDF). Ecma press release. January 26, 2005.
- ^ Ganapati, Priya (April 27, 2009). "GE Holographic Breakthrough Squeezes 100 DVDs Into a Single Disc". Wired. Retrieved January 8, 2019.
External links
- DaTARIUS signs agreement with InPhase Technologies to be their sole sales, service and support supplier of Tapestry Media hardware and media to ship starting in 2007 (300 GB WORM discs) with 600 GB discs and re-writable technology in 2008 as well as 1.6 TB media available in 2010.
- Optware, creator of HVD format.
- InPhase, a now bankrupt, company that developed a competing holographic storage format.
- Video explaining holographic storage – PC Magazine, October 4, 2006
- Holography system rides single beam EE Times, February 27, 2006 – interview with Hideyoshi Horimai and Yoshio Aoki of Optware Corp.
- Holographic storage standards eyed EE Times, February 28, 2006 – article about the upcoming technical committee meeting to begin standardization of HVD.
- How stuff works explains how HVD works.
- Elusive Green Laser Is Missing Ingredient Wall Street Journal February 13, 2008
- General Electric unveils 500GB optical disc storage