Method and apparatus for controlling tape recorder
AssigneeSangamo Weston, Inc.
InventorThomas J. Mussatt
Life of this patent
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Abstract
Control apparatus for a tape recorder includes a Central Processor Unit (CPU) and a Control Panel having data entry switches, mode selection switches, speed selection switches, a multiposition function select switch and other controls and a display, all of which communicate with the CPU. The system enables the operator to enter commands to be executed by the CPU in controlling the tape transport as predetermined footage locations on the tape (such as Beginning of Data or End of Data) or at a predetermined value of parameters, such as tape pack diameters of the reel being emptied or filled (Beginning of Tape or End of Tape).
Claims3
In combination with tape recorder means including source and take up reels, transducer means and transport means including a capstan and a motor for driving said capstan for transporting tape from one of said reels in predetermined relation with said transducer means onto the other of said reels, apparatus comprising:
- first sensor means for generating output signals representative of angular displacement of said capstan motor;
- first and second reel motors for driving said source and take up reels respectively;
- second and third sensor means for generating signals representative of the angular displacement of the said first and second reel motors respectively;
- data processor circuit means responsive to said output signals of said first, second and third sensor means for generating signals representative of the ratio of the output signals of said first sensor means to the output signals of one of said second and third sensor means associated with the reel being emptied, said ratio being independent of the speed of said motors and defining an End of Tape position for said source reel and a Beginning of Tape position for the said take up reel.
Dependencies are inferred from the claim text.