Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1995-06-07
1997-07-01
Dinh, Tan
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
369109, G11B 724
Patent
active
056445652
ABSTRACT:
In an optical information recording medium of this invention, at least one cell including diffraction gratings is disposed on a planar substrate. This cell is divided into n (n is an integer of 2 or more) regions such that each divided region represents one binary data. To read information, light-receiving elements corresponding in number of the number n of divided regions of the cell are disposed to correspond to the respective divided regions. One incident light beam is caused to be incident on the cell. Diffracted light components emerging from the respective divided regions of the cell are received by the light-receiving elements, thereby reproducing data. Thus, information can be recorded at a very high density, and information can be read at a high speed.
REFERENCES:
patent: 4847478 (1989-07-01), Sugiura
patent: 5007690 (1991-04-01), Chern et al.
patent: 5331626 (1994-07-01), Sugiura
patent: 5337301 (1994-08-01), Sugiura et al.
patent: 5359591 (1994-10-01), Nomoto
patent: 5400313 (1995-03-01), Belser et al.
patent: 5440427 (1995-08-01), Miyake et al.
Patent Abstracts of Japan, vol. 17, No. 358, (M-1440), Jul. 7, 1993.
Iwata Fujio
Takahashi Susumu
Toda Toshiki
Dinh Tan
Toppan Printing Co. Ltd.
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