HVD


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HVD

HVD

(1) (High Voltage Differential) See SCSI and differential signaling.

(2) (Holographic Versatile Disc) A high-capacity optical disc from the HVD Forum (www.hvd-forum.org) that combines single beam holographic storage and DVD technologies to provide cartridge capacities reaching 1TB and beyond. Formed in 2005 as the HVD Alliance, the first HVD standards were released in 2007 for 100GB read-only (ECMA-378) and 200GB recordable (ECMA-377) formats.

HVD uses the conventional CD/DVD pit layer for addressing the disc, on top of which is the holographic recording layer. A red laser reads the addresses, while a green or blue laser reads and writes the holograms.

Single Beam Holography
Throughout the history of holographic storage research, two separate laser beams have been used to write the holograms at the intersecting point. Using Optware's Collinear Holography, HVD combines the two lasers into one lens, which reduces the size and cost of the mechanism. See holographic storage.


Layers in an HVD Disc
References in periodicals archive ?
WOLF: HVD has been the most active in gathering secular organizations in Germany after the historic break of the Nazi regime and the cold war.
Patients with rheumatic HVD, consisted of previously diagnosed as ARF, fulfilled the modified Jones criteria and followed-up in our clinic because of mitral regurgitation (MR) and/or aortic regurgitation (AR) that are the sequela of acute rheumatic carditis.
When participants were asked about diversity-related discussion in reference to community concerns, those HVD still reported a slightly greater frequency of discussion, F (1,288) = 20.
Like other production companies, HVD lauds the Malaysian government's move" Foo said.
The most prominent effects of intermittent hypoxia with simulated altitude were found for HVD, hyperventilation and arterial oxygen saturation (21-24), (27), (28), (30-33).
OBJECTIVE: We examined the implications of various assumptions in HVD modeling for estimating low-dose risk.
The HVD site was constructed to hold blacklist personnel and the now famous "top 55" featured on the deck of cards--Saddam Hussein's most trusted government officials and personal staff.
That is, LVD or LVD/MSE terminators are used for LVD; HVD terminators for HVD; and SE active terminators for SE SCSI.
com is 20% owned by major producer-distributor HVD Entertainment, and thus gets access to the company's vast library of more than 8,000 hours of pics and series.
Based on the Ultrium format of Linear Tape Open technology, an open-format specification developed jointly by Seagate, Hewlett-Packard and IBM, the tape drive will be available in two SCSI configurations, LVD and HVD, with native fibre channel interfaces planned for release later this year.
Dramas are the program of choice for Haniza Taufik of HVD Entertainment in Malaysia, who praised Hong Kong's central location and amenities.
It (Stratusphere UX) allows administrators to perform HVD monitoring and troubleshooting of user-experience issues.