Optical recording method and apparatus therefor

Details Optical recording method and apparatus therefor Optical recording method and apparatus therefor

1994-12-14

1995-09-19

Sugarman, Scott J.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360 59, G11B 700

Patent

active

054522730

ABSTRACT:
Method and apparatus for recording information on an overwritable optical disk in which data is recorded on the disk with a writing beam spot while shifting the writing beam spot in a radial direction by a pitch smaller than the diameter of the writing beam spot for each rotation of the disk. In a reading operation, a reading beam having a shorter wavelength than that of the writing beam is used to read recorded data.

REFERENCES:
patent: 4549287 (1985-10-01), Hatano et al.
patent: 4853912 (1989-08-01), Akasaka et al.
patent: 5191563 (1993-03-01), Lee et al.
patent: 5199022 (1993-03-01), Suzuki et al.
Japanese Patent Abstract JP3263637.
Japanese Patent Abstract JP3062326.
Japanese Patent Abstract JP3225637.
Japanese Patent Abstract JP2177027.

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