Method of recording data on optical card by performing blank che

Details Method of recording data on optical card by performing blank che Method of recording data on optical card by performing blank che

1991-02-13

1992-09-01

Envall, Jr., Roy N.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369116, 369 32, 369 4428, 360 2, 235454, G11B 390

Patent

active

051446103

ABSTRACT:
In a method of recording data into a desired sector of a desired track on an optical card which includes a plurality of parallel tracks extending a track direction, each track comprising an ID portion in which track address is recorded and a data portion which is divided into a plurality of sectors, after accessing to the desired track, the track is first scanned in a forward direction in the track direction to find whether the desired sector is actually blank or not, and as soon as the relevant sector is checked to be vacant, the movement of the optical card is stopped and the optical card is moved in a backward direction in the track direction. Then, the optical card is moved again in the forward direction and the light beam is changed into a recording high power and is modulated in accordance with the data to be recorded when the light beam comes at a start point of the desired sector. In this manner, the data can be recorded into the desired sector within a short time.

REFERENCES:
patent: 4841498 (1989-09-01), Sugimura et al.
patent: 4847708 (1989-07-01), Furnyama
patent: 4872154 (1989-10-01), Sakagami et al.
patent: 4885458 (1989-12-01), Horiguchi et al.
patent: 4894817 (1990-01-01), Tanka et al.
patent: 4901301 (1990-02-01), Senshu
patent: 4958339 (1990-09-01), Koyama et al.
patent: 5027339 (1991-06-01), Yoda et al.

Affiliated with

Also associated with

Rating

Method of recording data on optical card by performing blank che does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of recording data on optical card by performing blank che, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of recording data on optical card by performing blank che will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-773925