Single Data Band Tape Storage with Segmented Servo Transducers
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Solution Overview
Problem
Existing magnetic tape drives face challenges in efficiently writing and reading data due to limitations in the design of magnetic heads and the arrangement of servo bands, which affect data storage capacity and precision.
Innovation Solution
A tape head configuration with an array of transducer elements extending over most of the tape width for a single data band, combined with a reduced number of servo bands and optimized servo transducer element arrays, enhances data storage capacity and precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple servo bands are used for position control, then positioning precision is improved, but data storage capacity deteriorates due to reduced space available for user data
Solution Approach 1:
The servo function is segmented across multiple servo transducer elements distributed along the tape width, allowing position control to be achieved through coordinated operation of these elements rather than requiring wide servo bands. This segmentation enables reduced servo band width while maintaining positioning precision.
Solution Approach 2:
The patent transitions from using lateral band width to control positioning to using longitudinal element distribution and selective activation. By controlling which servo elements are active along the tape width dimension, precise positioning is achieved without requiring wide servo bands, effectively moving the control mechanism to a different dimensional approach.
2Quantity of substance
If transducer element array extends over most of the tape width, then data storage capacity is improved, but servo band width must be reduced which may worsen positioning precision
Solution Approach 1:
The servo transducer array is segmented into multiple elements distributed along the tape width. By selectively activating specific segments (elements) based on the required head position, the system achieves precise positioning control without requiring the entire array to be confined to a wide servo band. This segmentation allows the data band to extend over most of the tape width while maintaining positioning precision.
Solution Approach 2:
The system dynamically selects and activates appropriate servo transducer elements based on the current positioning requirements. This dynamic activation pattern allows the servo function to adapt to different position needs without requiring a fixed wide servo band, enabling the data band to occupy most of the tape width while maintaining positioning precision through on-demand element activation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration increases data storage capacity by utilizing the space previously occupied by multiple servo bands for user data and improves precision through optimized servo band widths and element pitches.
Implementation Method 1
The magnetic recording write transducer then generates a magnetic field in a write bubble, which encodes the data into the magnetic media as the magnetic media is moved past the transducer.
Implementation Method 2
Data is read from the media by similarly positioning a magnetic reading transducer and then sensing the magnetic field of the magnetic media as it moves past the read transducer.
Data Source
AI summary
Provided are a computer program product, device, system, and method for single data band data storage. In one embodiment, a tape head module has an array of four servo transducer elements for each servo band of a tape and an array of reader/writer transducer elements extending over most of the width of the tape. In another embodiment, a data storage tape has a top servo band positioned adjacent a top edge guard band of the tape, a bottom servo band positioned adjacent a bottom edge guard band of the tape, and a single data band positioned between the top and bottom servo bands and configured to receive tracks of data written by a tape head wherein the single data band width extends over most of the tape width.