EP 1147664 A4 20030625 - METHOD AND APPARATUS FOR CARRYING DATA WITH A VIDEO SIGNAL SO THAT THE DATA IS NOT RECORDED
Title (en)
METHOD AND APPARATUS FOR CARRYING DATA WITH A VIDEO SIGNAL SO THAT THE DATA IS NOT RECORDED
Title (de)
VERFAHREN UND GERÄT ZUR DATENÜBERTRAGUNG MIT VIDEOSIGNALEN, SO DASS DIE DATEN NICHT GESPEICHERT WERDEN
Title (fr)
PROCEDE ET DISPOSITIF PERMETTANT D'ACHEMINER DES DONNEES AVEC UN SIGNAL VIDEO DE MANIERE A NE PAS ENREGISTRER LES DONNEES
Publication
Application
Priority
- US 0001964 W 20000125
- US 11727399 P 19990126
Abstract (en)
[origin: WO0044167A1] A method and apparatus for modifying a video signal to allow it to carry encoded data which is detectable at a suitably compliant receiver (18) but is not recorded by a conventional video recorder (13). One application is to carry a descrambling key to prevent useful recording (but not viewing) of a scrambled television signal since the key will not be recorded.
IPC 1-7
IPC 8 full level
H04N 5/76 (2006.01); H04N 5/91 (2006.01); H04N 5/913 (2006.01); H04N 5/93 (2006.01); H04N 7/08 (2006.01); H04N 7/081 (2006.01); H04N 7/169 (2006.01); H04N 7/171 (2006.01)
CPC (source: EP)
H04N 5/913 (2013.01); H04N 7/1693 (2013.01); H04N 7/1713 (2013.01)
Citation (search report)
- [XA] US 5778140 A 19980707 - OKAMOTO HIROO [JP], et al
- [X] EP 0843472 A1 19980520 - SONY CORP [JP]
- [A] WO 9834401 A2 19980806 - MACROVISION CORP [US], et al
- [A] WO 8910664 A1 19891102 - SCIENTIFIC ATLANTA [US]
- See references of WO 0044167A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0044167 A1 20000727; AU 2632300 A 20000807; EP 1147664 A1 20011024; EP 1147664 A4 20030625; JP 2002535929 A 20021022; JP 3676679 B2 20050727
DOCDB simple family (application)
US 0001964 W 20000125; AU 2632300 A 20000125; EP 00904592 A 20000125; JP 2000595487 A 20000125