Nova Patents
AT268973T

Method and apparatus for securing control words

Abstract

To one embodiment of this invention, provides a safeguard control word safety method. The method comprises a added to harass the digital content in a descrambler integrated - circuit (42). The same method of - comprising an for encrypting control word input (41), a a memory the descrambler integrated - circuit and decryption (44) for encrypting control word the descrambler integrated - circuit structure of a register circuit and used in descrambler integrated - circuit after the control word of a be a digital content storage to harass (45) is added.

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Granted
  4. Today

369 members in 12 offices

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Priority claims3

Priority claims
DocumentOfficeKindDate
12680599United States of AmericaP
49739300United States of AmericaA
0005111United States of AmericaW

Members369

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WO0059222A1World Intellectual Property Organization (WIPO)A1
AU3505700AAustraliaA
KR20010110715ARepublic of KoreaA
EP1163798A1European Patent Office (EPO)A1
CN1353909AChinaA
JP2002540736AJapanA
US6490081B1United States of AmericaB1
US2002194613A1United States of AmericaA1
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EP1163798B1European Patent Office (EPO)B1
AT268973TThis recordAustriaT
ATE268973T1AustriaT1
DE60011405D1GermanyD1
KR20040068994ARepublic of KoreaA
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WO03061173A3World Intellectual Property Organization (WIPO)A3
WO2004082147A2World Intellectual Property Organization (WIPO)A2
MXPA04006248AMexicoA
MXPA04006249AMexicoA
EP1461950A1European Patent Office (EPO)A1
EP1461952A1European Patent Office (EPO)A1
MXPA04006400AMexicoA
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