Vector Recording Readers Detecting Orthogonal Magnetic Fields
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current magnetic recording technologies are constrained by a one-dimensional system design, limiting areal density and drive performance due to the inability to effectively detect orthogonal magnetic fields on a two-dimensional media surface, which restricts the utilization of the media's full potential.
Innovation Solution
The implementation of a vector recording scheme using multiple readers that sense both perpendicular and longitudinal magnetic fields across multiple tracks, allowing for the detection of orthogonal field directions and enabling a two-dimensional recording approach.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a one-dimensional system design is used for magnetic recording, then the system structure is simple, but the areal density and drive performance are limited
Solution Approach 1:
The patent transitions from one-dimensional magnetic field detection to two-dimensional detection by incorporating both perpendicular and longitudinal field sensing capabilities. Multiple readers are positioned to detect magnetic fields in orthogonal directions, effectively utilizing the two-dimensional nature of the media surface to increase areal density without proportionally increasing system complexity
2Device complexity
If only perpendicular magnetic field detection is used, then the reader design is simple, but the utilization of media surface potential is restricted
Solution Approach 1:
The patent implements readers with multi-functional sensing capabilities that can detect both perpendicular and longitudinal magnetic field components. This universal detection capability allows the same reader structure to utilize both orthogonal field directions on the media surface, maximizing the utilization of media surface potential while maintaining reasonable reader design complexity
3Quantity of substance
If multiple readers sensing orthogonal fields are implemented, then areal density and drive performance increase, but system complexity increases
Solution Approach 1:
The patent combines multiple reading functions into an integrated system where readers simultaneously perform perpendicular and longitudinal field detection. By merging these functions into a unified multi-dimensional recording system, the patent achieves increased areal density while managing system complexity through functional integration rather than separate independent systems
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 approach enhances data storage performance by increasing areal density and improving drive performance by effectively utilizing the two-dimensional nature of the media surface, enabling the detection of magnetic fields in both directions and optimizing system design for better data encoding and decoding.
Implementation Method 1
The first reader provides a first signal based on detecting a first total longitudinal field of the first and second tracks
Implementation Method 2
The second reader provides a second signal based on detecting a second total longitudinal field of the second and third tracks
Implementation Method 3
The third reader provides a third signal based on detecting a total perpendicular field of the at least two tracks
Data Source
AI summary
A first reader spans first and second tracks of a recording medium and provides a first signal responsive to a first total longitudinal field of the first and second tracks. A second read spans two other tracks, at least one of the two other tracks being different from the first and second tracks. The second reader provides a second signal responsive to a second total longitudinal field of the two other tracks. A third reader spans two or more of the tracks and provides a third signal responsive to a total perpendicular field of the two or more tracks. User data is decoded from the first, second, and third signals.