Magnetic tape recording device having a rectifier installed on a rotating head drum for rectifying a signal being applied to the head
AssigneeU.S. Philips Corporation
InventorHermann-Josef Pehl
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Abstract
In an arrangement for inductive transmission of a data signal to the recording head (9) in a magnetic tape recording device, in which the data signal to be transmitted to the recording head is delayed by a bit period, the undelayed signal and the delayed signal are combined and applied to an inductive transmission arrangement (11, 13). After passage through the inductive transmission arrangement, the combined signal is rectified in a rectifier (21) and then subjected to a DC voltage shift (22). The resultant signal is then amplified (10) and applied to the recording head.
Claims8
Magnetic tape recording device for recording digital data signals in tracks to be recorded obliquely relative to the longitudinal direction of the magnetic tape, comprising a rotary drum on which at least two recording heads are installed;
- and inductive transmission arrangement for transmitting to the magnetic heads the data signal to be recorded, said transmission arrangement including a stator winding and a rotor winding;
- an input terminal for receiving the data signal to be recorded;
- and a coding arrangement having an input coupled to the input terminal and an output coupled to the stator winding, said coding arrangement including a delay arrangement for delaying the data signal to be recorded for the duration of a bit period in the data signal, and a signal combining state, said signal combining state being arranged for combining the data signal delayed by a bit period and the undelayed data signal to obtain a ternary output signal, characterized in that said magnetic tape recording device further comprises a rectifier stage installed on the rotary drum, said rectifier stage having an input coupled to the rotor winding for rectifying a ternary output signal obtained from the rotor winding.
Dependencies are inferred from the claim text.