Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Patent
1992-02-05
1993-03-30
Young, W. R.
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
358906, 358909, 360 9903, 360 9905, 360105, 36013034, H04N 5781
Patent
active
051989417
ABSTRACT:
In a recording or reproducing apparatus of the kind recording or reproducing information on or from a disc-shaped magnetic sheet which is contained in a cassette, if the magnetic sheet is left over a long period of time in a stationary state in contact with a magnetic head on one side thereof with a stabilizer plate closely opposed thereto on the other side, the magnetic sheet tends to be locally deformed and, if the apparatus is portable, the magnetic head might be damaged by collision with the sheet as the sheet vibrates while the apparatus is carried around. The disclosed apparatus is provided with retracting means for retracting the magnetic sheet and the stabilizer plate away from the magnetic head while leaving the cassette unmoved, so that the possibility of having the magnetic sheet deformed and the magnetic head damaged by the vibration of the sheet while the apparatus is carried around can be eliminated with the magnetic sheet and the stabilizer plate retracted from the head.
REFERENCES:
patent: 4074330 (1978-02-01), Norton et al.
patent: 4366501 (1982-01-01), Tsunekawa et al.
patent: 4437132 (1984-03-01), Shimaoka
patent: 4530014 (1985-07-01), d'Alayer de Costemore d'Arc
patent: 4583141 (1986-04-01), Shimaoka
patent: 4646179 (1987-02-01), Nagashima et al.
patent: 4660102 (1987-04-01), Kawakami et al.
patent: 4661871 (1987-04-01), Nagashima
patent: 4694361 (1987-09-01), Tsuchiya et al.
patent: 4694363 (1987-09-01), Nakamori et al.
Canon Kabushiki Kaisha
Young W. R.
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