Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1986-04-17
1989-08-08
Faber, Alan
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 46, 369 47, 235454, 235470, 250202, G11B 708, G06K 710
Patent
active
048559814
ABSTRACT:
Method and a device for reading out optically recorded data from an optical recording medium having data recording regions defined by reference lines in stripe and plural data tracks arranged in parallel to each other and perpendicular to said reference lines. According to the present inventions, a drastic change in the position of a reference line at a given order within the sensing field is monitored from among plural reference lines covered by the field. If there is any drastic change, the order of the reference line for reading is modified so that the data track to be read can be accurately followed even if the field of the reading sensor is deviated in the direction of the data tracks. It also enables correct data reading by checking whether the position of the reference lines included in the field of the reading sensor is within the preset tolerance.
REFERENCES:
patent: 4096992 (1978-06-01), Nojiri et al.
patent: 4189783 (1980-02-01), Brodie et al.
patent: 4283777 (1981-08-01), Curry et al.
patent: 4321622 (1982-03-01), Jerome et al.
patent: 4357596 (1982-11-01), Feilchenfeld
patent: 4536866 (1985-08-01), Jerome et al.
patent: 4598393 (1986-07-01), Pierce et al.
patent: 4634850 (1987-01-01), Pierce et al.
patent: 4652730 (1987-03-01), Marshall
patent: 4695991 (1987-09-01), Hudson
Hamasaki Yukio
Kimura Fumio
Takahashi Shunzo
Computer Services Corporation
Faber Alan
Weinhardt Robert A.
LandOfFree
Method and device for reading out optically recorded data and co 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 and device for reading out optically recorded data and co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for reading out optically recorded data and co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-911338