Inventor
ARMSTRONG ALAN J
US12 patents
⚠️ This page may combine multiple inventors who share the name “ARMSTRONG ALAN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIRRUS LOGIC INC
9 patentsUS5844920ADec 1, 1998
Thermal asperity compensation using multiple sync marks for retroactive and split segment data synchronization in a magnetic disk storage system
CIRRUS LOGIC INC224 citations99
US5701314ADec 23, 1997
On-the-fly error correction using thermal asperity erasure pointers from a sampled amplitude read channel in a magnetic disk drive
CIRRUS LOGIC INC195 citations99
US5761212AJun 2, 1998
Channel quality
CIRRUS LOGIC INC99 citations98
US6005731ADec 21, 1999
Channel quality circuit employing a test pattern generator in a sampled amplitude read channel for calibration
CIRRUS LOGIC INC68 citations96
US6021011AFeb 1, 2000
Synchronous read channel employing a digital center frequency setting for a variable frequency oscillator in discrete time timing recovery
CIRRUS LOGIC INC30 citations95
US5978162ANov 2, 1999
Synchronous read channel integrated circuit employing a channel quality circuit for calibration
CIRRUS LOGIC INC23 citations95
US5623377AApr 22, 1997
Filtering a read signal to attenuate secondary pulses caused by pole tips of a thin film magnetic read head
CIRRUS LOGIC INC40 citations92
US6313961B1Nov 6, 2001
Method and apparatus for calibrating a synchronous read channel integrated circuit
CIRRUS LOGIC INC44 citations89
US5966257AOct 12, 1999
Synchronous read channel integrated circuit employing discrete time timing recovery
CIRRUS LOGIC INC5 citations74