Inventor

HOOGENDOORN ABRAHAM

NL21 patents

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

HOOGENDOORN ABRAHAM

PHILIPS CORP

Coder for incorporating an auxiliary information signal in a digital audio signal, decoder for recovering such signals from the combined signal, and record carrier having such combined signal recorded thereon

Apparatus for recording an audio signal with protection against re-recording thereof, and recording apparatus which indicates the presence of such protection

Control loop

System for reproducing information signals on a magnetic tape which incrementally adjusts, in a plurality of steps the speed of the magnetic tape and the positioning and rotational speed of the magnetic head upon a change of mode

Magnetic head configured to read and/or write information on digital and analog form

Recording device with temperature-dependent write-current control

System, apparatus and method for recording and reproducing information

Reproducing device used with a record carrier containing two sides recorded in opposite directions that determines the selection of particular read back characteristics

Encoding methods for generating a digital signal containing modulated bit allocation information, and record carriers containing that signal

Transmission system, and transmitter and receiver used in the transmission system for transmitting and receiving digital signals containing modulated bit allocation information

Apparatus for reproducing information recorded in a plurality of adjacent tracks

System for recording and/or reproducing information medium for use in the system and magnetic head for formatting the medium

Analog-digital converter

Apparatus for producing recorded tape-like magnetic record carriers, record carrier obtained thereby, and device for reproducing the record carriering device for reproducing the record carrier

Magnetic recording method and apparatus which provide at least two write pulses for each binary signal bit to be recorded

ONSTREAM INC

Magnetic head and system for controlling the position of a magnetic head

Method of and arrangement for formatting a magnetizable medium

System for recording and/or reproducing information medium for use in the system, and magnetic write head and arrangement for formatting the medium

(unassigned)

System for recording and/or reproducing information medium for use in the system, and magnetic write head and arrangement for formatting the medium

Magnetic head and system for controlling the position of a magnetic head

U S PHILIP CORP

Positioning of a head relative to a plurality of tracks