Optical recording and playback apparatus and method using single

Details Optical recording and playback apparatus and method using single Optical recording and playback apparatus and method using single

1996-10-10

1998-10-27

Hoang, Huan

Static information storage and retrieval

Information masking

Transparency

365124, 365215, G11C 1300

Patent

active

058285954

ABSTRACT:
In a system (apparatus and method) which employs a light absorbent material surrounded by an optically transparent matrix as a recording medium and in which the presence or absence of emission light of a specific wavelength from unity of the light absorbent material is used for optical writing and reading, the light emitted in response to reading light is condensed and spectrally diffracted and the light intensity is detected for each specific wavelength and related to recorded information.

REFERENCES:
patent: 4101976 (1978-07-01), Castro et al.
patent: 4103346 (1978-07-01), Haarer et al.
patent: 4757472 (1988-07-01), Magee et al.
patent: 4956813 (1990-09-01), Seya et al.
patent: 5107483 (1992-04-01), Nakajima et al.
patent: 5184323 (1993-02-01), Schildkraut et al.
patent: 5272667 (1993-12-01), Yamada et al.

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