Method and apparatus for writing and reading information and sto

Details Method and apparatus for writing and reading information and sto Method and apparatus for writing and reading information and sto

1992-08-11

1995-09-12

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4427, G11B 7095

Patent

active

054503906

ABSTRACT:
Light spots are irradiated onto an optical disk and are detected as signals. A selection is made to receive as an input one of the detected signals from the light spots. The use of two light spots in a signal processing system permits writing information with one light spot and then reading it with the other to confirm the write state or erase state of the information.

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