Fast forward - reverse mechanism for cassette type tape...

Fast frame rate augmentation

Fast rewinding device for cassette tapes

Fast speed reproduction system for digital disc

Fault-tolerant sample-data servo pattern

Feedback control apparatus in an optical recording and...

Feedback control circuit for photosensors in magnetic tape...

Ferrite core placement method and apparatus

Ferro-magnetic acicular particles for recording medium

Ferroelectric information optical storage device with...

Ferromagnetic chromium dioxide composition

Ferromagnetic chromium dioxide crystals

Ferromagnetic chromium dioxide crystals

Ferromagnetic powder for magnetic recording medium and...

Ferromatic powder and method for producing the same

Ferrous ferric oxides, process for preparing same and their...

Ff/rew changing mechanism for tape recording and/or...

Field qualification of disk drives in consumer electronics...

Field replaceable heads for magnetic tape machine

File access system