Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1990-01-31
1991-03-26
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
G11B 1546
Patent
active
050034111
ABSTRACT:
A method for performing a reproduction and search operation on a data recording and reproducing device of the helical scan type which includes a pair of recording and reproducing heads mounted on a rotary drum. The method includes the steps of: (a) during the reproduction operation, transporting the tape and rotating the rotary drum such that a relative speed between said tape and the heads is either a first relative speed or a second relative speed which is less than the first relative speed; and (b) during the search operation, transporting the tape at a speed substantially greater than a tape speed used during the reproduction operation and rotating the rotary drum at a speed such that a relative speed between the tape and the heads is equal to the second lower relative speed.
REFERENCES:
patent: 4641208 (1987-02-01), Inazawa et al.
patent: 4786985 (1988-11-01), Williams
patent: 4816940 (1989-03-01), Nagasawa et al.
Miyake Ichiro
Nagahara Shinichi
Suzuki Tomoyuki
Takahashi Tokihiro
Yamada Tomoyasu
Pioneer Electronic Corporation
Tupper Robert S.
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