Inventor

HANSON WELDON MARK

US19 patents

⚠️ This page may combine multiple inventors who share the name “HANSON WELDON MARK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HANSON WELDON MARK

HGST Netherlands BV

Disk drive with distributed codeword blocks

Magnetic recording disk drive with write position error signal values written in the data tracks for compensation of track misregistration

Magnetic recording disk drive with write current overshoot amplitude (OSA) responsive to data transitions

Disk drive with different data sector integrated preambles in adjacent data tracks

Disk drive with channel and preamp with dynamic write-current control for write head

Disk drive with different synchronization fields and synchronization marks in the data sector preambles in adjacent data tracks

System and method for testing data storage systems utilizing micro-transitions

GALBRAITH RICHARD LEO

Detection of synchronization mark from output of matched filter upstream of Viterbi detector

Multi-bit phase alignment for synchronization mark pattern matching

Implementing combined phase and amplitude magnetic defect detection on-the-fly

Implementing magnetic defect classification using phase modulation

HITACHI GLOBAL STORAGE TECH

Method and apparatus for enhanced data channel performance using read sample buffering

Data storage device with data recovery process using fixed phase clocking for analog-to-digital conversion

Formatting method and apparatus for a direct access storage device

WESTERN DIGITAL TECH INC

Implementing enhanced track following during read back using head asymmetry metrics in hard disk drives

Implementing BER-list modulation code for hard disk drives

IBM

Pad eliminating decoding method and apparatus for a direct access storage device

Method and apparatus for improving track format efficiency in a direct access storage device

CHE XIAODONG

Implementing channel signal processing assist with ECS contact detection