Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1992-10-13
1994-03-08
Nguyen, Hoa T.
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
369100, 360114, 360 59, G11B 1304, G11B 1112, G11B 1110
Patent
active
052933610
ABSTRACT:
An information processing method for scanning, by an erasing device, a recording medium on which information is recorded in a predetermined area and erasing the recorded information is disclosed. The erasing device is driven for a period, including the period during which the erasing device is on the area, and longer than the period. The specification also discloses an information processing apparatus including a recording/erasing device for applying a light beam to an optical recording medium and selectively effecting recording and erasing of information, a scanning device for scanning the light beam relative to the recording medium, and a control arrangement for controlling the application time of the light beam so that during erasing, the light beam is applied to an area larger than the area of the recording medium in which information is recorded.
REFERENCES:
patent: 4495530 (1985-01-01), Yanagida
patent: 4674071 (1987-06-01), Okumura et al.
patent: 4733385 (1988-03-01), Henmi et al.
patent: 4953150 (1990-08-01), Sonobe
Canon Kabushiki Kaisha
Nguyen Hoa T.
LandOfFree
Information processing method and apparatus therefor in which an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Information processing method and apparatus therefor in which an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information processing method and apparatus therefor in which an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-158251