GB2377348B - Security unit for encrypted signal transmission - Google Patents

Security unit for encrypted signal transmission

Info

Publication number
GB2377348B
GB2377348B GB0116377A GB0116377A GB2377348B GB 2377348 B GB2377348 B GB 2377348B GB 0116377 A GB0116377 A GB 0116377A GB 0116377 A GB0116377 A GB 0116377A GB 2377348 B GB2377348 B GB 2377348B
Authority
GB
United Kingdom
Prior art keywords
signal transmission
security unit
encrypted signal
encrypted
security
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
GB0116377A
Other versions
GB2377348A (en
GB0116377D0 (en
Inventor
Pan Lui
Man Cheong Chuk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIGITAL VIDEO NETWORKS Ltd
Original Assignee
DIGITAL VIDEO NETWORKS Ltd
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 DIGITAL VIDEO NETWORKS Ltd filed Critical DIGITAL VIDEO NETWORKS Ltd
Priority to GB0116377A priority Critical patent/GB2377348B/en
Publication of GB0116377D0 publication Critical patent/GB0116377D0/en
Publication of GB2377348A publication Critical patent/GB2377348A/en
Application granted granted Critical
Publication of GB2377348B publication Critical patent/GB2377348B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
GB0116377A 2001-07-04 2001-07-04 Security unit for encrypted signal transmission Expired - Lifetime GB2377348B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0116377A GB2377348B (en) 2001-07-04 2001-07-04 Security unit for encrypted signal transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0116377A GB2377348B (en) 2001-07-04 2001-07-04 Security unit for encrypted signal transmission

Publications (3)

Publication Number Publication Date
GB0116377D0 GB0116377D0 (en) 2001-08-29
GB2377348A GB2377348A (en) 2003-01-08
GB2377348B true GB2377348B (en) 2004-07-14

Family

ID=9917941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0116377A Expired - Lifetime GB2377348B (en) 2001-07-04 2001-07-04 Security unit for encrypted signal transmission

Country Status (1)

Country Link
GB (1) GB2377348B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7434065B2 (en) 2003-09-29 2008-10-07 Broadcom Corporation Secure verification using a set-top-box chip
EP1519579B1 (en) * 2003-09-29 2014-03-05 Broadcom Corporation Secure verification of an STB
KR100599122B1 (en) * 2004-06-28 2006-07-12 삼성전자주식회사 A warning message displaying system and displaying system
CN1716852B (en) * 2004-07-01 2010-05-05 谈子晨 Formula cipher combined graph prompting interactive dynamic cipher checking mode
EP2645729A1 (en) * 2012-03-30 2013-10-02 Nagravision S.A. Security device for Pay-TV receiver/decoder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5509077A (en) * 1993-06-30 1996-04-16 Siemens Aktiengesellschaft Method for data security in a digital telecommunication system
US5761306A (en) * 1996-02-22 1998-06-02 Visa International Service Association Key replacement in a public key cryptosystem
EP0984629A1 (en) * 1998-09-01 2000-03-08 Mindport B.V. System for broadcasting data signals in a secure manner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5509077A (en) * 1993-06-30 1996-04-16 Siemens Aktiengesellschaft Method for data security in a digital telecommunication system
US5761306A (en) * 1996-02-22 1998-06-02 Visa International Service Association Key replacement in a public key cryptosystem
EP0984629A1 (en) * 1998-09-01 2000-03-08 Mindport B.V. System for broadcasting data signals in a secure manner

Also Published As

Publication number Publication date
GB2377348A (en) 2003-01-08
GB0116377D0 (en) 2001-08-29

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20150827 AND 20150902

PE20 Patent expired after termination of 20 years

Expiry date: 20210703