Monday, March 19, 2018
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
LG Display Brings Crystal Sound OLED tech to Lighting
Facebook Suspends Data Analytics Firm Which Worked on the Trump Presidential Campaign
Standalone Oculus Go Headset Could Debut Next Month
Qualcomm Director Paul Jacobs to Exit Qualcomm Board
Samsung Galaxy S9 and S9+ Go On Sale
Samsung in Talks With Boeing to Bring Mobile Tech To Planes
Samsung's Galaxy S9 Said to Use Chinese Optical Parts
Facebook Lite to Come in the U.S. and Elsewhere
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > Optical Storage > Pioneer...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, October 25, 1999
Pioneer taps violet laser for 27.4-Gbyte DVD system

"..Pioneer has demonstrated a 27.4-Gbyte optical disk system that can store four hours of high-definition video. The system uses a 405-nm violet laser developed by.
With all work on formats for first-generation DVD products scheduled for completion by year's end, Pioneer is shifting its development focus to next-generation DVD products and hopes to leverage Nichia's newly available violet laser.
The prototype disk system, which can store four hours of high-definition video in 1,080i at variable bit rate at an average 13.4 Mbits/second, was shown at the Japan Electronics Show 1999 earlier this month. Pioneer intends to propose the system as the specs for the next-generation DVD-video system.
The desktop prototype player with the violet laser reads out signals from each layer of a two-layer disk the same structure as today's double-layered DVD-video disk with an 8.54-Gbyte capacity. The prototype disk has a track pitch of 0.37 micron, about half of the current disk, and a capacity of 27.4 Gbytes for two layers.

Triple beam
Since the track pitch is narrower even for the blue laser beam spot, Pioneer researchers used three-beam crosstalk cancellation. That technology divides the beam into three, with the outer two beams canceling interference from adjacent tracks while the central beam conveys the signal from the targeted track.
Pioneer demonstrated a 15-Gbyte disk system in 1997 using a 430-nm second-harmonic-generation laser. At that time, the numeric aperture ratio was 0.5, but since the violet laser has a shorter wavelength, Miyanabe said, aperture could be kept at 0.6, the same as current DVD players.
In the demonstration, Pioneer played back 1,080i high-definition moving pictures from the disk. For authoring, each frame is divided into four portions, encoded, then put together. But decoding is done by one decoder supplied by LG Semiconductor. Pioneer has high-resolution disk mastering technology, which originated in a semiconductor process technology called "contrast enhanced lithography.".."

Cnet posted Buyer's Guide to Storage        All News        Cnet posted Buyer's Guide to Storage
Cnet posted Buyer's Guide to Storage     Optical Storage News      Cnet posted Buyer's Guide to Storage

Source Link Get RSS feed Easy Print E-Mail this Message

Related News
Pioneer DDJ-SB3 DJ Controller Lets Almost Anyone Scratch
New Pioneer DDJ-1000 Controller Designed for rekordbox dj
New Pioneer BDR-XD07 External Blu-ray Burners Connect Directly to Android Smartphones
Pioneer Introduces New CDJ-2000NXS2-W and DJM-900NXS2-W
HERE and Pioneer Partner on Global Map Solutions
Pioneer's Flagship Se-Monitor5 Hi-Res Headphones Released
Konica Minolta and Pioneer Join Forces On OLED Lighting Business
Pioneer Debuts New Elite 7.2-channel Network AV Receivers
Pioneer BDR-211UBK BD Writer With Ultra HD Blu-ray Playback Support Launches In The U.S
Pioneer BDR-XD06J-UHD Is The First Portable UHD BD PC Drive
Pioneer Rayz Earphones Support Apple's Lightning Audio Technology
Pioneer Sells CATV-Related Equipment Business, Forms OLED Lighting Alliance With Konica Minolta

Most Popular News
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2018 - All rights reserved -
Privacy policy - Contact Us .