Optical recording and reproducing system

Details Optical recording and reproducing system Optical recording and reproducing system

1995-01-25

1997-04-01

Edun, Muhammad N.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 54, 369 97, 360 69, G11B 700

Patent

active

056173911

ABSTRACT:
An optical recording and reproducing system has an optical recording and reproducing head driving arrangement including an optical pick-up and has an optical recording medium provided between the recording heads. The optical recording and reproducing head is mounted on a rotating arrangement. The head scans tracks while a relative position of the recording medium and rotating arrangement is changed. Each track has an address recorded at the beginning of scanning and a hold signal at the end of scanning. The recording and reproducing heads are separated one track. The recording head makes recording while the reproducing head makes reproduction. In the recording or reproducing mode of operation, the track address is looked. If wrong, it is corrected. The hold signal is detected to operate a tracking device and focusing device. Scanning the next track is determined by the address before tracking is made for recording or reproduction.

REFERENCES:
patent: 5095394 (1992-03-01), Yanagihara
patent: 5280399 (1994-01-01), Owada
patent: 5398140 (1995-03-01), Rhodes et al.
Maeda, Yasuaki. "Newly Developed Technologies for Audio Equipments," Association of Japan Television Engineering, vol. 47, 1993, pp. 841-844. (provided in Japanese).

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