Two-Dimensional Optical Storage
W. Coene, Dominique M. Bruls, Andre H. J. Immink, A. van der Lee, Andries P. Hekstra, Jamal Riani, S. Van Beneden, Massimo Ciacci, Jan W. M. Bergmans, Motohiro Furuki · 2006
With storage capacities increasing much faster than data rates, fast read-out of content is becoming a bottleneck for the convenient use of optical storage devices. Two-dimensional optical storage (TwoDOS) is a new concept that solves this data-rate problem by using a multi-spot parallel readout system. In addition, the storage capacity is increased with a factor of at least 2. Using the same read-out physics as in the Blu-ray disc standard, single layered 12 cm discs with capacities up to 50 GB have been read out successfully at bit-rates as high as 560 Mbit/s. Basic pillars of TwoDOS are advanced signal processing and disc mastering techniques, and a proper design of the optical path.