Jpn. J. Appl. Phys. 41 (2002) pp. 1763-1766 |Next Article| |Table of Contents|
|Full Text PDF (77K)| |Buy This Article|
A New Efficient Error Correctible Modulation Code for Holographic Data Storage
Digital Media Laboratory, DAEWOO Electronics Co., Ltd., 543, DangJeong-Dong, KunPo-Shi, KyongGi-Do, 435-733, Korea
(Received September 27, 2001; accepted for publication January 15, 2002)
A new efficient modulation code for holographic memory, or 9:12 pseudo-balanced code(9-12PBC), has been developed and evaluated. The proposed code is partitioned into 16 codeword subsets and is decoded in conjunction with Viterbi algorithm. The results of numerical simulations and actual recording experiments show that 9-12PBC gives favorable trade-off between code rate and bit error rate(BER) performance.
- D. Psaltis and G. W. Burr: IEEE Computer 31 (1998) 52.
- H. J. Coufal, D. Psaltis and G. T. Sincerbox: Holographic Data Storage, eds. W. T. Rhodes (Springer, New York, 2000) Chap. 4, p. 283.
- G. W. Burr, J. Ashley, H. Coufal, R. K. Grygier, J. A. Hoffnagle, C. M. Jefferson and B. Marcus: Opt. Lett. 22 (1997) 639.
- J. Ashley: U. S. Patent 6016330 (1998).
- E. Hwang, B. Kang, J. Cho, J. Park and H. Jung: Proc. Sat. Int. Symp. Opt. Memory 2000, p. 62.
- V. Vadde and B. V. K. V. Kuma: Opt. Lett. 24 (1999) 546.