Device for reading and writing data on magnetic recording...

Device for reading magnetic information

Device for switching a video tape recorder head to write/read mo

Device for the thermomagnetic recording of information

Diagnostic device and method for examining the operation of a di

Dictating machine having a revising function

Differential amplifier with differential outputs

Differential magneto-resistive head pre-amplifiers for...

Differential voltage bias, voltage sense preamplifier...

Digital cassette tape reproducing device including novel drive c

Digital data recording apparatus

Digital device configuration and method

Digital filtering and digital automatic gain control for a...

Digital magnetic recording/reproducing amplifying apparatus

Digital magnetic reproducing apparatus and digital magnetic reco

Digital magnetic reproducing apparatus and digital magnetic reco

Digital magnetic writing and reading apparatus

Digital record level setting system

Digital recording and reproducing apparatus or digital recording

Digital recording/reproducing method in which digital control co