Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1985-01-16
1987-03-10
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360963, 360 93, G11B 554, G11B 1500
Patent
active
046494464
ABSTRACT:
A head-mounting plate is movable between a latched play position, a standby position and a withdrawn position. The plate is moved from the play to the standby positions when the end of the tape is reached or when an actuating rod is depressed slightly. The rod has a guide slot for unlatching the plate, and a switching surface for a tape transport drive switch. A pivotal member on the plate clears the drive switch when in a first pivotal position, and opens the switch during return of the plate to the standby position when in a center position. Upon re-depression and movement of the rod in a specific direction, a stop on the rod moves the member to the first pivotal position. After this re-depression the switch is closed during return movement of the rod in the opposite direction, and a servomechanism moves the head plate from the standby to the play positions.
REFERENCES:
patent: 4225894 (1980-09-01), Fulukawa et al.
patent: 4404610 (1983-09-01), Koizumi et al.
patent: 4471398 (1984-09-01), Kommoss et al.
patent: 4568989 (1986-02-01), Ohhara et al.
Deutsch Arnim
Ruyten Henricus M.
Treacy David R.
U.S. Philips Corporation
Wolff John H.
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