Inventor
FREDRICKSON LISA
US25 patents
⚠️ This page may combine multiple inventors who share the name “FREDRICKSON LISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEAGATE TECHNOLOGY LLC
8 patentsUS6493162B1Dec 10, 2002
Frame synchronization for viterbi detector
SEAGATE TECHNOLOGY LLC79 citations98
US6233289B1May 15, 2001
High rate trellis code for partial response channels
SEAGATE TECHNOLOGY LLC50 citations92
US6154870ANov 28, 2000
Signal error-correction system and method
SEAGATE TECHNOLOGY LLC41 citations87
US6400288B1Jun 4, 2002
Method and apparatus for generating code words with shifted tribit error protection
SEAGATE TECHNOLOGY LLC24 citations86
US6263032B1Jul 17, 2001
Phase detector estimator
SEAGATE TECHNOLOGY LLC9 citations73
US6195028B1Feb 27, 2001
Amplifier gain control method using conditional updating
SEAGATE TECHNOLOGY LLC6 citations71
US6470474B1Oct 22, 2002
Method and apparatus for identifying errors in a detected sequence of values
SEAGATE TECHNOLOGY LLC3 citations62
US6317856B1Nov 13, 2001
Encoder and a method of encoding for partial response channels
SEAGATE TECHNOLOGY LLC6 citations54
SEAGATE TECHNOLOGY
5 patentsUS5691993ANov 25, 1997
Rate 4/5 trellis code for PR4 channels with improved error propagation
SEAGATE TECHNOLOGY124 citations99
US5801649ASep 1, 1998
Matched spectral null encoder/decoder
SEAGATE TECHNOLOGY26 citations92
US6100829AAug 8, 2000
Method and apparatus for a digital peak detection system including a countdown timer
SEAGATE TECHNOLOGY29 citations90
US6104765AAug 15, 2000
Asymmetric channel data detection compensation
SEAGATE TECHNOLOGY7 citations74
US6000052ADec 7, 1999
Signal conditioning system for controlling data retrieval channel characteristics in which errors in samples are segregated by association with intended sample values to control selected characteristics
SEAGATE TECHNOLOGY3 citations63
AGERE SYSTEMS INC
4 patentsUS7082564B2Jul 25, 2006
High throughput Reed-Solomon encoder
AGERE SYSTEMS INC13 citations77
US6826723B2Nov 30, 2004
Multi-rate reed-solomon encoders
AGERE SYSTEMS INC10 citations74
US7123668B2Oct 17, 2006
Simple detector and method for QPSK symbols
AGERE SYSTEMS INC3 citations63
US7117425B2Oct 3, 2006
Decoder architecture for reed solomon codes
AGERE SYSTEMS INC3 citations63
QUANTUM CORP
3 patentsUS5805799ASep 8, 1998
Data integrity and cross-check code with logical block address
QUANTUM CORP73 citations92
US5778009AJul 7, 1998
Dedicated ALU architecture for 10-bit Reed-Solomon error correction module
QUANTUM CORP25 citations92
US5757826AMay 26, 1998
Word-wise processing for reed-solomon codes
QUANTUM CORP24 citations92
IBM
3 patentsUS5548600AAug 20, 1996
Method and means for generating and detecting spectrally constrained coded partial response waveforms using a time varying trellis modified by selective output state splitting
IBM31 citations92
US5497384AMar 5, 1996
Permuted trellis codes for input restricted partial response channels
IBM43 citations92
US5485472AJan 16, 1996
Trellis codes with algebraic constraints for input restricted partial response channels
IBM16 citations74