Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1981-11-02
1984-01-10
Stellar, George G.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 85, 360 95, G11B 5008
Patent
active
044255900
ABSTRACT:
A video tape recorder designed so that the time for placing the tape in position to record and play-back and for activating the tape movement is materially reduced. Upon the cassette being inserted into the recorder, the tape is withdrawn and immediately positioned proximate to the record/reproduce heads. The reel torque on the supply side is increased, and the capstan shaft activated to accelerate the tape to its normal speed. This is accomplished by instructing the microprocessor in a conventional machine to perform different functions that it was designed to perform, i.e. to enter the play mode directly upon cassette insertion while shutting off the capstan motor and connecting the video output to the video input through a relay. Supply tension is also reduced. Only after the play mode is selected is the capstan activated, the supply tension returned to normal value, and the video input decoupled from the video output. This sequence results in material saving of time to ready the machine to record/reproduce.
Davies Harry
Johnstone Gregg M.
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