B-CAS

B-CAS (BS Conditional Access Systems Co., Ltd.) is a vendor and operator of the ISDB CAS system in Japan, largely owned by the public broadcaster NHK with some other electronics companies and broadcasters airing in BSAT. Or, the reception method (B-CAS method) that this company offers.

B-CAS cards in a Toshiba Cell Regza set-top box

All ISDB receiving apparatus such as DTT TV, tuner, and DVD recorder except 1seg-only devices require a B-CAS card under regulation and B-CAS cards are supplied with most units at purchase. B-CAS cards cannot be purchased separately.

Implementations of ISDB-T and ISDB-T International (SBTVD) outside Japan do not use the B-CAS system at all as they do not employ the Copy-Once encryption method used on ISDB broadcasts in Japan. For these countries, some operators may choose to implement their own copy protection system.

  • BS Digital use B-CAS card
  • BS Digital CCI and Terrestrial Digital support mark B-CAS card
  • BS/110° CS/Terrestrial digital shared use B-CAS card
  • CATV exclusive use B-CAS card
  • Terrestrial Digital exclusive use B-CAS card
  • Terrestrial Digital exclusive use (Special internal use) B-CAS card
  • Shop use B-CAS card
  • Pay broadcast demo use B-CAS card
  • Business use B-CAS card
  • Terrestrial Digital mini B-CAS card
  • Limited use mini B-CAS card
gollark: https://en.wikipedia.org/wiki/Printer_steganography
gollark: Although there is also that thing where they secretly embed metadata into documents using very small dots or something.
gollark: It annoys me that it was even possible to get printer/scanner manufacturers to implement the EURion thing in the first place.
gollark: Printers SHOULD NOT be trusted.
gollark: If anyone else ever notices, this is quite likely.

See also
  • Integrated Services Digital Broadcasting
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