Dynamic information storage or retrieval – Systems having plural physically distinct independent tracks... – Continuous consecutive storage or retrieval of interrupted...
Patent
1990-10-15
1992-10-13
Shaw, Dale M.
Dynamic information storage or retrieval
Systems having plural physically distinct independent tracks...
Continuous consecutive storage or retrieval of interrupted...
369113, 369 4414, 369 4417, 369 4418, G11B 700
Patent
active
051557207
ABSTRACT:
A servo control circuit for an image rotator used in an optical tape recording apparatus that employs a rotary tape drum. Pairs of pulse generators and frequency generators are provided on the image rotator and on the tape drum, respectively. Initially, the pulse generators are used for servo control and, upon detecting a phase lock, servo control is subsequently switched over to be controlled by the frequency generators.
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Kamatani Yoshiteru
Miyoshi Hiroshi
Nakao Takashi
Narahara Tatsuya
Eslinger Lewis H.
Maioli Jay H.
Shaw Dale M.
Sony Corporation
Truong Khoi
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