A cassette having a recording medium for use with a recording/re

Acceleration disturbance detection subsystem for use with...

Accidental erasing preventative device for a cassette tape recor

Adapter for a miniature type tape cassette

Adaptive control of a write inhibit signal in a disk drive based

Anti-copy system

Apparatus and method for controlling inhibition of data...

Apparatus and method for preventing unauthorized dubbing of a re

Apparatus and method for recording and reproducing a digital sig

Apparatus and method for sensing an external magnetic field...

Apparatus for detecting an operation mode of a tape cassette pla

Apparatus for loading and unloading a tape cartridge

Apparatus for marking a recorded signal

Apparatus for preventing accidental recording of a tape recorder

Apparatus for preventing inadvertent erasure of cassette tape

Apparatus for receiving and securely retaining a device

Apparatus for recording an audio signal with protection against

Apparatus for recording digital signal

Apparatus for releasing a restriction on the recording of an inf

Apparatus for sensing operating shock on a disk drive