Optical disk mastering apparatus having two data transferring ra

Details Optical disk mastering apparatus having two data transferring ra Optical disk mastering apparatus having two data transferring ra

1994-03-08

1996-01-16

Epps, Georgia Y.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

369 54, 369 85, 369 84, G11B 1902, G11B 728

Patent

active

054854482

ABSTRACT:
A disk recording and reproducing apparatus which realizes a simultaneous monitoring function with a recording function with a simple pickup system is disclosed. The apparatus comprises a recording and reproducing head, a first memory for receiving and storing input signals at a first rate and supplying the stored signals at a second rate higher than the first rate so as to be recorded onto the disk medium at the second rate by means of the recording and reproducing head, a second memory for receiving and storing signals reproduced at the second rate by means of the recording and reproducing head and outputting the stored signals at a rate lower than the second rate, and a controller for controlling the recording and reproducing head to relatively scan a same portion of the disk medium twice for a predetermined period of time so that recording and reproduction occur alternately and successively at the portion of the disk medium for each predetermined number of blocks.

REFERENCES:
patent: 5353276 (1994-10-01), Schroder
patent: 5365381 (1994-11-01), Scheffler
patent: 5375017 (1994-12-01), Kawai et al.
patent: 5412628 (1995-05-01), Yamazaki et al.

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