DK0754390T3 - Fremgangsmåde og apparat til udsendelse og modtagelse af krypterede signaler - Google Patents

Fremgangsmåde og apparat til udsendelse og modtagelse af krypterede signaler

Info

Publication number
DK0754390T3
DK0754390T3 DK94927743T DK94927743T DK0754390T3 DK 0754390 T3 DK0754390 T3 DK 0754390T3 DK 94927743 T DK94927743 T DK 94927743T DK 94927743 T DK94927743 T DK 94927743T DK 0754390 T3 DK0754390 T3 DK 0754390T3
Authority
DK
Denmark
Prior art keywords
transmitting
receiving encrypted
encrypted signals
signals
receiving
Prior art date
Application number
DK94927743T
Other languages
English (en)
Inventor
Donald Watts Davies
Original Assignee
Mindport Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mindport Bv filed Critical Mindport Bv
Application granted granted Critical
Publication of DK0754390T3 publication Critical patent/DK0754390T3/da

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/162Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/167Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/169Systems operating in the time domain of the television signal
    • H04N7/1696Systems operating in the time domain of the television signal by changing or reversing the order of active picture signal portions
DK94927743T 1994-04-08 1994-09-29 Fremgangsmåde og apparat til udsendelse og modtagelse af krypterede signaler DK0754390T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9407038A GB9407038D0 (en) 1994-04-08 1994-04-08 Method and apparatus for transmitting and receiving encrypted signals
PCT/GB1994/002116 WO1995028057A1 (en) 1994-04-08 1994-09-29 Method and apparatus for transmitting and receiving encrypted signals

Publications (1)

Publication Number Publication Date
DK0754390T3 true DK0754390T3 (da) 2000-05-29

Family

ID=10753276

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94927743T DK0754390T3 (da) 1994-04-08 1994-09-29 Fremgangsmåde og apparat til udsendelse og modtagelse af krypterede signaler

Country Status (18)

Country Link
US (1) US5920625A (da)
EP (1) EP0754390B1 (da)
AU (1) AU7704394A (da)
CA (1) CA2187313C (da)
CZ (1) CZ288958B6 (da)
DE (1) DE69422199T2 (da)
DK (1) DK0754390T3 (da)
ES (1) ES2142408T3 (da)
FI (1) FI964035A (da)
GB (1) GB9407038D0 (da)
GR (1) GR3032731T3 (da)
HU (1) HUT76459A (da)
NO (1) NO964260L (da)
NZ (1) NZ273662A (da)
PL (1) PL176058B1 (da)
PT (1) PT754390E (da)
SK (1) SK128596A3 (da)
WO (1) WO1995028057A1 (da)

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US6380205B1 (en) 1999-10-29 2002-04-30 Merck & Co., Inc. 2-cyclohexyl quinazoline NMDA/NR2B antagonists
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US7043473B1 (en) 2000-11-22 2006-05-09 Widevine Technologies, Inc. Media tracking system and method
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US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
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US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
US7765567B2 (en) * 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US7376233B2 (en) 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US7302059B2 (en) 2002-01-02 2007-11-27 Sony Corporation Star pattern partial encryption
US7292690B2 (en) 2002-01-02 2007-11-06 Sony Corporation Video scene change detection
US8051443B2 (en) * 2002-01-02 2011-11-01 Sony Corporation Content replacement by PID mapping
US7155012B2 (en) * 2002-01-02 2006-12-26 Sony Corporation Slice mask and moat pattern partial encryption
US8027470B2 (en) 2002-01-02 2011-09-27 Sony Corporation Video slice and active region based multiple partial encryption
US7328345B2 (en) * 2002-01-29 2008-02-05 Widevine Technologies, Inc. Method and system for end to end securing of content for video on demand
US7299292B2 (en) * 2002-03-29 2007-11-20 Widevine Technologies, Inc. Process and streaming server for encrypting a data stream to a virtual smart card client system
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US7594271B2 (en) * 2002-09-20 2009-09-22 Widevine Technologies, Inc. Method and system for real-time tamper evidence gathering for software
US7007170B2 (en) * 2003-03-18 2006-02-28 Widevine Technologies, Inc. System, method, and apparatus for securely providing content viewable on a secure device
US7356143B2 (en) * 2003-03-18 2008-04-08 Widevine Technologies, Inc System, method, and apparatus for securely providing content viewable on a secure device
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Also Published As

Publication number Publication date
EP0754390B1 (en) 1999-12-15
DE69422199D1 (de) 2000-01-20
GB9407038D0 (en) 1994-06-01
CZ288958B6 (cs) 2001-10-17
HUT76459A (en) 1997-09-29
PT754390E (pt) 2000-04-28
FI964035A (fi) 1996-12-05
US5920625A (en) 1999-07-06
GR3032731T3 (en) 2000-06-30
PL176058B1 (pl) 1999-03-31
NO964260D0 (no) 1996-10-07
PL316673A1 (en) 1997-02-03
HU9602760D0 (en) 1996-11-28
CA2187313C (en) 2007-07-31
AU7704394A (en) 1995-10-30
ES2142408T3 (es) 2000-04-16
CZ9602937A3 (en) 2001-05-16
SK128596A3 (en) 1998-02-04
WO1995028057A1 (en) 1995-10-19
DE69422199T2 (de) 2002-07-25
NZ273662A (en) 1998-05-27
FI964035A0 (fi) 1996-10-08
NO964260L (no) 1996-12-09
CA2187313A1 (en) 1995-10-19
EP0754390A1 (en) 1997-01-22

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