Inventor

ZOOK CHRISTOPHER P

US60 patents

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

ZOOK CHRISTOPHER P

CIRRUS LOGIC INC

Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization

Thermal asperity compensation using multiple sync marks for retroactive and split segment data synchronization in a magnetic disk storage system

On-the-fly error correction using thermal asperity erasure pointers from a sampled amplitude read channel in a magnetic disk drive

Error correction method and apparatus for headers

Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors

Sampled amplitude read channel employing a post processor with a boundary error compensator which compensates for boundary error events in a split-field data sector

Error detection convolution code and post processor for correcting dominant error events of a trellis sequence detector in a sampled amplitude read channel for disk storage systems

Error correction and concurrent verification of a product code

Error correction processor for correcting a multi-dimensional code by generating an erasure polynomial over one dimension for correcting multiple codewords in another dimension

ECC system employing a data buffer for storing codeword data and a syndrome buffer for storing error syndromes

Concurrent generation of ECC error syndromes and CRC validation syndromes in a DVD storage device

Method and apparatus for efficiently processing a multi-dimensional code

Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer

Error correction verification method and apparatus using CRC check remainders

Error correction code processor employing adjustable correction power for miscorrection minimization

Sampled amplitude read channel employing noise whitening in a remod/demod sequence detector

Servo decoder for decoding an error correcting servo code recorded on a disc storage medium

Fault tolerant sync mark detector for comparing a sign and magnitude of a detected sequence to a target sync mark in sampled amplitude magnetic recording

Cyclical redundancy check method and apparatus

Cyclical redundancy check method and apparatus

Error correction method and apparatus

Versatile error correction system

Burst error corrector

Dual purpose cyclic redundancy check

Sampled amplitude read channel for reading user data and embedded servo data from a magnetic medium

Write verify method for correcting unrecoverable sectors in a disc storage system using track level redundancy

Sector and track level error correction system for disc storage systems

Error correction method and apparatus

Error correction method and apparatus

Error correction method and apparatus for disk drive emulator

Rate 16/17 ENDEC with independent high/low byte decoding

Coding to improve timing recovery in a sampled amplitude read channel

Servo track address channel code for PR4 magnetic recording

Method and apparatus for flash burst error correction

Error correction method and apparatus for disk drive emulator

Method and apparatus for detecting and decoding data in a PRML class-IV digital communication channel

Method and apparatus for encoding data in a PRML class-IV digital communication channel

Finite field inversion

Coefficient updating method and apparatus for Reed-Solomon decoder

Multiple-rate channel ENDEC in a commuted read/write channel for disk storage systems

Fault tolerant sync mark detector enabled relative to a frequency of an acquisition preamble for sampled amplitude recording

Method for correcting unrecoverable sectors using track level redundancy in a disc drive storage system

Filtering a read signal to attenuate secondary pulses caused by pole tips of a thin film magnetic read head

Concurrent row/column syndrome generator for a product code

EXABYTE CORP

Method and apparatus for determining the coefficients of a locator polynomial

Multiple pass error correction process and apparatus for product codes

Error correction method and apparatus

Dual channel helical recorder

Apparatus and method for formatting and recording digital data on magnetic tape

STORAGE TECHNOLOGY CORP

Predictive tape drive error correction apparatus