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US 2006/0050428 A1Published application
Transducing head
AssigneeHewlett-Packard Development Company, L.P.
InventorSteven Brittenham
Life of this patent
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Abstract
Determining an error in position of at least two heads coupled to a piezoelectric material, and changing a potential applied to a piezoelectric material to reduce the error in position of the at least two heads.
Claims34
A control method comprising:
- reading servo information to determine an error in position of at least two servo heads coupled to a piezoelectric material;
- and
- changing a potential applied to a piezoelectric material to reduce the error in position of the at least two servo heads.
A control system comprising:
- a transducer further comprising:
- a first servo element;
- and
- a second servo element spaced from the first servo element;
- a tape further comprising:
- a first track with servo information thereon:
- and
- a second track with servo information thereon, the second track spaced from the first track;
- a position signal indicating when a space between the first servo element and the second servo element differs from a space between the first track and the second track;
- and
- means for changing the spacing between the first servo element and the second servo element in response to the position signal.
8 more elements
A transducer comprising:
- a piezoelectric material having a first end and a second end:
- a first read head coupled to the piezoelectric material;
- a second read head coupled to the piezoelectric material, the second read head spaced from the first read head;
- a first electrode coupled near the first end of the piezoelectric material;
- and
- a second electrode coupled near the second end of the piezoelectric material.
3 more elements
A tape drive comprising:
- a tape transport mechanism;
- and
- a transducer further comprising:
- a piezoelectric material having a first end and a second end:
- a first read head coupled to the piezoelectric material;
- a second read head coupled to the piezoelectric material, the second read head spaced from the first read head;
- a first electrode coupled near the first end of the piezoelectric material;
- and
- a second electrode coupled near the second end of the piezoelectric material.
6 more elements
A method comprising:
- providing a piezoelectric substrate;
- and
- forming a plurality of read heads on the piezoelectric substrate.
A method comprising:
- determining a first position of a first servo read head with respect to a first servo track;
- determining a second position of a second servo read head with respect to a second servo track;
- and
- adjusting the position between the first servo read head and the second servo read head.
1 more element
Dependencies are inferred from the claim text.