Achromatic polarization devices for optical disc pickup heads

Acousto-optic reading/recording head for high-density...

Active alignment method for multilayer optical disk storage

Active focus alignment system for multilayer optical disk storag

Active tracking method for optical disk storage

Actuator assembly providing two-dimensional movement of a...

Actuator having a plurality of objective lenses installed in...

Adaptive equalizer of recorded information reproducing apparatus

Adaptive high fidelity reproduction system

Adaptively stabilized recording for direct read after write opti

Adjustable optical pickup device with means for removing...

Adjusting a detected signal with a wave form equalizer based upo

Advanced high density data write strategy

AFM version of diode-and cathodoconductivity-and...

AFM-based data storage and microscopy

Allocation of real time files

Aluminum-aluminum oxide stylus arm

Amplifier with peak and bottom signal level shifting control

Amplitude detector for signals having a periodical...

An optical head having a rotating mirror