Rotary head type recording apparatus having an erasing function

Rotary head type reproducing apparatus

Rotary head type reproducing apparatus with crosstalk reduction

Rotary magnetic head apparatus for performing reproduction...

Rotary magnetic head apparatus having reproduction signal...

Rotary magnetic tape transducer headwheel structure

Rotary recording/playback head angular position correction appar

Rotary transformer circuit for multiple head video cassette reco

Rotary transformer winding arrangement in a magnetic tape casset

Rotary transformer with winding to cancel crosstalk

Rotary type magnetic recording and reproduction apparatus

Rotatable head type digital magnetic recording and reproducing d

Rotating head amplifier for VCR

Rotating head type magnetic record/reproduce apparatus

Rotating head type reproducing apparatus for reproducing an info

Rotating magnetic recording medium recording/playback apparatus

Rotational phase detecting apparatus for head drum utilizing vid

Safeguarding of data recorded on disk by tunnel erase magnetic h

Scheme for encoding a magnetic tape cassette

Secure data disposal for disk drive