Signal-based tape wrap angle setting for flat contour linear tape recording heads
First Claim
1. A method for setting the tape wrap angle of a flat contour linear tape recording head, comprising the steps of:
- adjusting a tape movement control device to move a magnetic tape from a first position to an initial position relative to a flat upper surface of the tape recording head that corresponds to a nominal tape wrap angle;
determining said initial position by monitoring a signal from said tape; and
adjusting said calibrated tape movement control device to move said tape from said initial position to a second position that corresponds to a desired tape wrap angle.
1 Assignment
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Accused Products
Abstract
In an essentially flat contour linear tape recording head, a nominal tape wrap angle exists at which reading signals from the magnetic tape ceases and/or commences. This nominal tape wrap angle can be easily determined by monitoring a prerecorded signal, such as the servo track signal, while the tape wrap angle is adjusted. When the signal ceases (or starts, depending upon the direction of adjustment) an initial position of the tape movement control device relative to the tape wrap angle is identified. At this initial position it is known that the tape wrap angle is at its nominal value, such as approximately 0.1°. Thereafter, the tape movement control device can be knowingly adjusted with a calibrated indicator to accurately and quickly achieve a desired final tape wrap angles.
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Citations
13 Claims
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1. A method for setting the tape wrap angle of a flat contour linear tape recording head, comprising the steps of:
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adjusting a tape movement control device to move a magnetic tape from a first position to an initial position relative to a flat upper surface of the tape recording head that corresponds to a nominal tape wrap angle;
determining said initial position by monitoring a signal from said tape; and
adjusting said calibrated tape movement control device to move said tape from said initial position to a second position that corresponds to a desired tape wrap angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification