Cassette recorder with anti-erase interlock
Cassette recording or non-recording indicating mechanism
Cassette-type recording and/or reproducing apparatus with inadve
Circuit arrangement for the selective suppression and nonsuppres
Control system for a tape recorder
Controlling a write inhibit threshold based on vibration
Copy guard system of a software program used in VTR
Copy protected disk
Copy protection disk format controller
Copy protection for computer discs
Copy protection for hybrid digital video tape recording and unpr