Inventor

VERBOOM JOHANNES J

NL37 patents

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

VERBOOM JOHANNES J

PHILIPS CORP

Optically readable record carrier with track undulations for producing a synchronizing clock signal and apparatus for forming such track

Method, apparatus and record carrier body for optically writing information

Focus offset optimization for reading optically recorded data

Track format for use with an optical record carrier having a varying track pitch

Optical information storage apparatus including eccentricity compensator

Disc-shaped optically readable record carrier used as a data storage medium

System for transmitting digital information, coding arrangement for use in that system, decoding arrangement for use in that system and record carrier for use in that system

Apparatus for reproducing digitally coded information recorded on an optically readable disc-shaped record carrier

System incorporating word synchronization for a serial signal sequence

Track addressing method and apparatus

Apparatus and method for verification of data established on a record carrier during write

Method of and device for recording information, record carrier, and device for reading the recorded information

Method of demodulating a quadphase coded data signal and receiver for carrying out the method

LASER MAGNETIC STORAGE INT

Sampled servo for an optical disk drive

Read channel for an optical recorder

Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor

Optical disk tracking and seeking systems specific track formats using discontinuities

High density codes for optical recording

Offset for protection against amorphous pips

Servo error write blanking circuit for an optical recording disk

Optical disk tracking and seeking systems and specific track formats using servo areas

Tracking and seeking system for use with an optical record carrier having a wobbled track format

Optical disk tracking and seeking systems specific track formats using wobbled pits

Optical disk phase lock loop with comb filter

OPTICAL STORAGE INT

Method of transmitting n-bit information words, information transmission system for carrying out the method, and encoding device and decoding device for use in the information-transmission system

Write protection and data detection using differential detector

Sector mark decoder for an optical recorder

Direct read after write verify using differential detection

Optical record carrier and apparatus for reading the record carrier

PLASMON LMS INC

Read focus optimization for an optical disk drive

Laser driver with noise reduction feedback for optical storage applications

Enhanced adaptive and selective ISI cancellation for a read channel in storage technologies

Enhanced adaptive and selective ISI cancellation for a read channel in storage technologies

Robust header configuration and method for reading sector identifiers contained therein

PHILIPS ELECTRONICS NA

Tracking method and track format based on quadrature wobble

PHILIPS ELECTRONICS N A CORP

Method and apparatus for maximum likelihood detection

ALLIANCE STORAGE TECHNOLOGIES

Amplitude modulated addressing in disk pregroove