Device for recording and retrieving of manually inputted data wi

Device for recording and/or reproducing information

Device for recording data comprising microdots with free...

Device for recording data, comprising a peripheral support...

Device for recording information on an optical data carrier

Device for scanning an optical record carrier having at...

Device for the writing and/or reading of optical recording...

Device for writing and reading data by using cantilever

Device suitable for manufacturing an optical registration...

Device, in particular a compact disc, comprising a data storage

Devices and methods of detecting movement between media and...

Diamond pickup stylus with good grindability

Diamond shaped holographic storage regions oriented along a comm

Dielectric constant measuring apparatus, dielectric constant...

Dielectric information apparatus, tape-like medium...

Dielectric recording apparatus, dielectric reproducing...

Dielectric recording medium, and method of and apparatus for...

Dielectric recording/reproducing head and dielectric...

Differential optical switch for data multiplexing in an optical

Diffraction device for reading and/or writing a record carrier