EP 0137801 A1 19850424 - DEVICE FOR THE PROTECTION OF MAGNETIC TAPES, OR OTHER RECORDING MEDIA, OR TELEVISION OR RADIO BROADCASTINGS AGAINST UNAUTHORIZED READING AND/OR REPRODUCTION.
Title (en)
DEVICE FOR THE PROTECTION OF MAGNETIC TAPES, OR OTHER RECORDING MEDIA, OR TELEVISION OR RADIO BROADCASTINGS AGAINST UNAUTHORIZED READING AND/OR REPRODUCTION.
Title (de)
GERÄT ZUR PROTEKTION VON MAGNETBÄNDERN ODER ANDEREN AUFZEICHNUNGSTRÄGERN ODER VON FERNSEH- ODER RUNDFUNKSENDUNGEN GEGEN DAS UNAUTORISIERTE LESEN UND/ODER WIEDERGEBEN.
Title (fr)
DISPOSITIF DE PROTECTION DE BANDES MAGNETIQUES, OU AUTRES SUPPORTS D'ENREGISTREMENT, OU D'EMISSIONS DE TELEVISION OU DE RADIO CONTRE LA LECTURE ET/OU LA REPRODUCTION NON AUTORISEES.
Publication
Application
Priority
FR 8302355 A 19830209
Abstract (en)
[origin: WO8403166A1] Device for the protection of a video tape on the "sound" track of which have been recorded coded messages, comprising a detector (9) for detecting said coded messages, means (7, 8) for inhibiting or enabling the reading or copying of the tape at each detection of a coded message corresponding to a preset program and means (analog delay lines) (3, 5) for transmitting the sound signal while eliminating the coded message.
Abstract (fr)
Dispositif de protection d'une bande vidéo sur la piste "son" de laquelle ont été enregistrés des messages codés, comprenant un détecteur (9) desdits messages codés, des moyens (7, 8) d'inhiber ou de valider la lecture ou la duplication de la bande à chaque détection d'un message codé conforme à un programme pré-établi et des moyens (lignes à retard analogiques (3, 5)) de transmettre le signal de son en éliminant le message codé.
IPC 1-7
IPC 8 full level
H04N 5/91 (2006.01); G11B 20/00 (2006.01); G11B 20/10 (2006.01); H04N 5/913 (2006.01); G06F 1/00 (2006.01)
CPC (source: EP)
G11B 20/00086 (2013.01); G11B 20/00688 (2013.01); G11B 20/00695 (2013.01); H04N 5/913 (2013.01); G06F 2211/007 (2013.01); H04N 2005/91321 (2013.01)
Designated contracting state (EPC)
BE CH DE GB LI NL SE
DOCDB simple family (publication)
WO 8403166 A1 19840816; BR 8405175 A 19850212; DK 482984 A 19841009; DK 482984 D0 19841009; EP 0137801 A1 19850424; FR 2540659 A1 19840810; JP S60500835 A 19850530
DOCDB simple family (application)
FR 8400029 W 19840209; BR 8405175 A 19840209; DK 482984 A 19841009; EP 84900729 A 19840209; FR 8302355 A 19830209; JP 50080184 A 19840209