Apparatus with multiple heads adjusted for optimum performance a

Details Apparatus with multiple heads adjusted for optimum performance a Apparatus with multiple heads adjusted for optimum performance a

1989-10-25

1991-03-05

Richardson, Robert L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

372 29, 346 76L, 369 33, G11B 700, H01S 313

Patent

active

049982389

ABSTRACT:
An optical disk apparatus effect recording reproduction and erasure of information by irradiation with laser beams on an optical disk. In the optical disk apparatus, a plurality of beam heads are correspondingly provided for respective recording regions defined by radially dividing a recording zone on the optical disk.

REFERENCES:
patent: 4577320 (1986-03-01), Yoshikawa et al.
patent: 4660189 (1987-04-01), Tsukamura et al.
patent: 4691308 (1987-09-01), Takagi et al.
patent: 4821125 (1989-04-01), Christensen et al.

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