Video disc read back scanner

Video disc recording and playback system with two recording area

Video disc stylus

Video disc stylus cartridge with protective member

Video disc stylus retractor

Video image updating and reproducing device with image selecting

Video recorder-playback machine

Videodisc player with drive means engaging videodisc guide groov

Voltage pattern for ferroelectric recording head

Volume holographic data storage system

Volume holographic data storage system incorporating therein a c

Volume holographic memory and optical information...

Volume holographic memory apparatus having a reference beam and

Volume holographic memory-based optical...