Dynamic magnetic information storage or retrieval – Head – Core
Patent
1982-01-29
1984-01-17
Richardson, Robert L.
Dynamic magnetic information storage or retrieval
Head
Core
360 93, 360 963, H04M 164
Patent
active
044265549
ABSTRACT:
In a magnetic tape cassette telephone answering device having a remote controlled playout capability, a tape drive transfer system is disclosed which utilizes motive power from the tape cassette drive motor to transfer the system into an automatic rewind mode.
The tape drive transfer system includes a transfer lever connected to a spindle drive assembly which alternately drives the takeup spindle or the source spindle of the incoming message tape cassette. The transfer lever is moved into driven engagement with the cassette drive motor by a low power solenoid that is actuated when a remote playout control signal is received. That motor drives the transfer lever and thereby conditions the spindle drive assembly from the forward to the rewind operating position. The transfer lever then is disengaged and latched. When the rewind is complete, the solenoid is deactuated. This releases the transfer lever from its latched position and permits the transfer lever and spindle drive assembly lever to be biased back to the normal forward position in preparation for playout of the previously recorded messages.
A remote controlled fast forward option is available, by using a spindle drive assembly with a transferrable drive gear that is mounted on a pivotable floating arm. Fast forward operation is accomplished by first conditioning the tape drive transfer system to the rewind position and thereafter reversing direction of the cassette drive motor. This reverses the direction of the transferable drive gear, which by a frictional drag arrangement rotates the floating arm so that the drive gear engages the takeup spindle of the cassette for fast forward operation.
REFERENCES:
patent: 4394697 (1983-07-01), Kurosawa
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