Inventor
REED DAVID E
US39 patents
⚠️ This page may combine multiple inventors who share the name “REED DAVID E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIRRUS LOGIC INC
34 patentsUS5802118ASep 1, 1998
Sub-sampled discrete time read channel for computer storage systems
CIRRUS LOGIC INC188 citations99
US6646822B1Nov 11, 2003
Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors
CIRRUS LOGIC INC99 citations98
US6023386AFeb 8, 2000
Fault tolerant sync mark detector for synchronizing a time varying sequence detector in a sampled amplitude read channel
CIRRUS LOGIC INC99 citations98
US5796535AAug 18, 1998
Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer
CIRRUS LOGIC INC137 citations98
US6819514B1Nov 16, 2004
Adaptive equalization and interpolated timing recovery in a sampled amplitude read channel for magnetic recording
CIRRUS LOGIC INC55 citations96
US6246723B1Jun 12, 2001
Sampled amplitude read channel employing early-decisions from a trellis sequence detector for sampling value estimation
CIRRUS LOGIC INC70 citations96
US6052248AApr 18, 2000
Parity channel code for enhancing the operation of a remod/demod sequence detector in a d=1 sampled amplitude read channel
CIRRUS LOGIC INC79 citations96
US6005727ADec 21, 1999
Servo decoder for decoding an error correcting servo code recorded on a disc storage medium
CIRRUS LOGIC INC62 citations96
US5966415AOct 12, 1999
Adaptive equalization in a sub-sampled read channel for a disk storage system
CIRRUS LOGIC INC79 citations96
US5726818AMar 10, 1998
Magnetic disk sampled amplitude read channel employing interpolated timing recovery for synchronous detection of embedded servo data
CIRRUS LOGIC INC76 citations96
US6490110B2Dec 3, 2002
Servo data detection with improved phase shift tolerance
CIRRUS LOGIC INC70 citations95
US6108151AAug 22, 2000
Sampled amplitude read channel for reading user data and embedded servo data from a magnetic medium
CIRRUS LOGIC INC34 citations95
US5961658AOct 5, 1999
PR4 equalization and an EPR4 remod/demod sequence detector in a sampled amplitude read channel
CIRRUS LOGIC INC74 citations95
US5771127AJun 23, 1998
Sampled amplitude read channel employing interpolated timing recovery and a remod/demod sequence detector
CIRRUS LOGIC INC66 citations95
US5668678ASep 16, 1997
Detecting servo data and servo bursts from discrete time samples of an analog read signal in a sampled amplitude read channel
CIRRUS LOGIC INC48 citations94
US6115198ASep 5, 2000
PR4 sampled amplitude read channel for detecting user data and embedded servo data
CIRRUS LOGIC INC43 citations93
US6028728AFeb 22, 2000
Sampled amplitude read/write channel employing a sub-baud rate write clock
CIRRUS LOGIC INC49 citations93
US5854714ADec 29, 1998
Digital servo demodulation for sampled amplitude magnetic recording
CIRRUS LOGIC INC26 citations93
US6680807B1Jan 20, 2004
Servo mark detection for a disk drive system
CIRRUS LOGIC INC42 citations92
US6384747B1May 7, 2002
Data encoding to provide run-length control in a data storage system
CIRRUS LOGIC INC18 citations92
US6345074B1Feb 5, 2002
Maximum likelihood servo detector for detecting an error correcting servo code recorded on a disc storage medium
CIRRUS LOGIC INC26 citations92
US6038091AMar 14, 2000
Magnetic disk drive read channel with digital thermal asperity detector
CIRRUS LOGIC INC38 citations92
US5926490AJul 20, 1999
Sampled amplitude read channel employing a remod/demod sequence detector guided by an error syndrome
CIRRUS LOGIC INC42 citations92
US6144513ANov 7, 2000
Detecting servo data and servo bursts from discrete time samples of an analog read signal in a sampled amplitude read channel
CIRRUS LOGIC INC31 citations91
US6493163B1Dec 10, 2002
Increased lock range PLL for constrained data
CIRRUS LOGIC INC15 citations84
US6594217B1Jul 15, 2003
Servo synch mark processing in a disk drive system
CIRRUS LOGIC INC7 citations74
US6078444AJun 20, 2000
Read channel auxiliary high precision data conversion
CIRRUS LOGIC INC12 citations74
US5786950AJul 28, 1998
PR4 sampled amplitude read channel employing an NRZI write modulator and a PR4/NRZI converter
CIRRUS LOGIC INC12 citations74
US6714144B1Mar 30, 2004
Data randomization in a data storage system
CIRRUS LOGIC INC11 citations73
US6614609B1Sep 2, 2003
Gray code detection for a disk drive system
CIRRUS LOGIC INC9 citations73
US6549351B1Apr 15, 2003
Auxiliary data encoding in a disk drive system
CIRRUS LOGIC INC4 citations63
US6201779B1Mar 13, 2001
MEEPR4 sampled amplitude read channel for disk storage systems
CIRRUS LOGIC INC4 citations63
US5862161AJan 19, 1999
Sampled amplitude read channel with simplified sequence detector matched to partial erasure
CIRRUS LOGIC INC1 citations52
US6707627B1Mar 16, 2004
Error checking in a disk drive system using a modulo code
CIRRUS LOGIC INC1 citations51