Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1986-09-24
1988-08-09
Cardillo, Raymond F.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 63, G11B 1544, G11B 1512
Patent
active
047632097
ABSTRACT:
This invention relates to an autoreverse double deck system which enables the respective side of two tapes inserted in the double deck to be played or recorded continuously in sequential or alternative forwarding mode. A head selection switch 10 produces a timing pulse upon each autoreverse operation and a deck operation control unit 25 produces a clock pulse by differentiating the said timing pulse. The said clock pulse toggles two flip-flops FF.sub.1 and FF.sub.2 in turn. Switches S.sub.31 and S.sub.32 for deciding the deck operation mode respectively receive one of output signals of the said flip-flops and voltage of power supply B to turn on the associated motor driving transistor Q.sub.1 and/or Q.sub.2, whereby main motor M.sub.1 and/or sub-motor M.sub.2 can be rotated in a certain operation mode. A switch S.sub.4 functions to select one motor to start preferentially between said motors M.sub.1 and M.sub.2. A pulse generator 15 or 20 produces a pulse for driving said selected motor M.sub.1 or M.sub.2 preferentially, when connected to said switch S.sub.4.
REFERENCES:
patent: 3315041 (1967-04-01), Sampson
patent: 4003089 (1977-01-01), Maurer
patent: 4309729 (1982-01-01), Kice
patent: 4357636 (1982-11-01), Taketomi et al.
patent: 4373170 (1983-02-01), Sunaga et al.
patent: 4551775 (1985-11-01), Koizumi et al.
Cardillo Raymond F.
Robertson David L.
Sam Sung Electronics Co. Ltd.
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