Method and apparatus for recording and reading information, and

Details Method and apparatus for recording and reading information, and Method and apparatus for recording and reading information, and

1992-08-27

1994-04-05

Bowler, Alyssa H.

Static information storage and retrieval

Radiant energy

365153, 365118, 365126, 365113, G11C 700, G11C 1304

Patent

active

053011457

ABSTRACT:
A method and apparatus for recording and reading information in a recording medium comprising a thin film of an organic compound having polymorphisms. The free energy of each polymorphism is different with each other. Information is recorded in the recording medium by applying energy to the recording medium and transferring locally the polymorphism of the organic compound to another polymorphism of the organic compound. The amount of the energy corresponds to the difference in free energy between the polymorphisms. Information is read from the recording medium by optically discriminating between the optical absorption properties of the polymorphisms.

REFERENCES:
patent: 350441 (1970-09-01), Ovshinsky
patent: 3519422 (1970-07-01), Gaynor
patent: 3530441 (1970-09-01), Ovshinsky
patent: 4032901 (1977-06-01), Levinthal
patent: 4371954 (1983-02-01), Cornet
patent: 4404656 (1983-09-01), Cornet
patent: 4574366 (1986-03-01), Potember et al.
patent: 4647947 (1987-03-01), Takeoka et al.
patent: 4684598 (1987-08-01), Potember et al.
patent: 4737934 (1988-04-01), Ross et al.
patent: 4806995 (1989-02-01), Day et al.
patent: 4819210 (1989-04-01), Miura et al.
patent: 4831110 (1989-05-01), Kanno et al.
patent: 4839861 (1989-06-01), Ikegawa et al.
patent: 5058061 (1991-10-01), Koshino et al.

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