Apparatus for writing and reading a magneto-optical record carri

Details Apparatus for writing and reading a magneto-optical record carri Apparatus for writing and reading a magneto-optical record carri

1993-12-14

1995-08-15

Popek, Joseph A.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 44370, 369 44380, 369121, G11B 1100

Patent

active

054425972

ABSTRACT:
An apparatus for writing and reading a magneto-optical record carrier (1) with an increased information density are described. Information areas (4) which are smaller than the write spot (V.sub.w) supplied by a first diode laser (40) can be written by a switched magnetic field. The areas can be read with a read spot (V.sub.r) which is smaller than the write spot, which read spot is formed by radiation from, for example an assembly of a second diode laser (42) and a frequency doubler (43).

REFERENCES:
patent: 3869193 (1975-03-01), Schmit
patent: 4176377 (1979-11-01), Howe
patent: 4466004 (1984-08-01), Kobayashi et al.
patent: 4544443 (1985-10-01), Ohta et al.
patent: 4549287 (1985-10-01), Hatano et al.
patent: 4694447 (1987-09-01), Cohen et al.
patent: 4730293 (1988-03-01), Pierce et al.
patent: 4853912 (1989-08-01), Arasara et al.
patent: 4922454 (1990-05-01), Taki
patent: 5065377 (1991-12-01), Spruit et al.
Audio Eng. Soc. 78 Hr. Conv. 1983 pp. 1-14.
Electronics Mag. Aug. 1988 p. 43.

Affiliated with

Also associated with

Rating

Apparatus for writing and reading a magneto-optical record carri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for writing and reading a magneto-optical record carri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for writing and reading a magneto-optical record carri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2188034