Method and apparatus for reproducing recorded information by pro

Details Method and apparatus for reproducing recorded information by pro Method and apparatus for reproducing recorded information by pro

1988-02-29

1989-05-16

Faber, Alan

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369106, 369124, G11B 708

Patent

active

048316130

ABSTRACT:
Disclosed are optical information reproducing method and apparatus wherein an information carrying member having an information pattern recorded thereon is irradiated by plural light beams which are spaced from each other in the direction of tracing of the information pattern, the light beams modulated by the information pattern are simultaneously and independently photoelectrically converted, and a predetermined operation is effected relative to the outputs obtained by the photoelectric conversion to thereby generate a reproduction signal with respect to the recorded information.

REFERENCES:
patent: 3985952 (1976-10-01), Adler
patent: 4037252 (1977-07-01), Janssen
patent: 4283777 (1981-08-01), Curry et al.
patent: 4305144 (1981-12-01), Okada
patent: 4340950 (1982-07-01), Kosaka
patent: 4462095 (1984-07-01), Chen
patent: 4512002 (1985-04-01), Kosaka et al.
patent: 4539665 (1985-09-01), Iso et al.
patent: 4635243 (1987-01-01), Takeoka

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