At
this year's ODS meeting, Sony presented their results on four-layer
Micro-Reflector recording. Since then, the company has been working to increase data transmission speed, memory density and the number of
recording layers. According to Tech-On, Sony
recently demonstrated a medium equivalent to a seven-layer disc and announced plans to develop a 20-layer 500GB disc by
2010.
Sony Corp wrote and read data on a medium equivalent to a seven-layer disc by using "Micro-Reflector method," a
multilayer recording technology using holographic recording.
The company calculated the error rates of reproduced signals after
signal conditioning such as equalizing. Until now, the company wrote and read on discs of up to four layers and announced only the eye
patterns of reproduced signals.
This time, the achievement was announced at ISOM' 07, an international conference on optical
memory, which took place Oct 21-25, 2007, in Singapore. At the conference, Sony made speeches about speeding up data transmission speed,
improving memory density per layer and increasing the number of recording layers even more.
If you'd like to read
more, Tech-On's entire report can be found here.
