EP0920776A1 - Fernsehen - Google Patents

Fernsehen

Info

Publication number
EP0920776A1
EP0920776A1 EP98901440A EP98901440A EP0920776A1 EP 0920776 A1 EP0920776 A1 EP 0920776A1 EP 98901440 A EP98901440 A EP 98901440A EP 98901440 A EP98901440 A EP 98901440A EP 0920776 A1 EP0920776 A1 EP 0920776A1
Authority
EP
European Patent Office
Prior art keywords
programme
television
classification
code words
code
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.)
Withdrawn
Application number
EP98901440A
Other languages
English (en)
French (fr)
Inventor
John Ritchie Kinghorn
Shirley June James
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP0920776A1 publication Critical patent/EP0920776A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0887—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of programme or channel identifying signals
    • 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

Definitions

  • bits b5, b6, and b7 in group 2 are used to transport the classification code.
  • the classification code proposed requires the use of sixteen bits and only a very rudimentary classification code could be defined with only three data bits (a choice of eight possible codes).
  • bit b5 is used as a flag bit to enable the start of a sequence to be identified while bits b6 and b7 enable two bits of data to be transmitted for each WSS signal cycle. Thus over eight cycles a total of sixteen data bits can be transmitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Television Systems (AREA)
EP98901440A 1997-02-15 1998-02-12 Fernsehen Withdrawn EP0920776A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9703192.6A GB9703192D0 (en) 1997-02-15 1997-02-15 Television
GB9703192 1997-02-15
PCT/IB1998/000175 WO1998036568A1 (en) 1997-02-15 1998-02-12 Television

Publications (1)

Publication Number Publication Date
EP0920776A1 true EP0920776A1 (de) 1999-06-09

Family

ID=10807756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98901440A Withdrawn EP0920776A1 (de) 1997-02-15 1998-02-12 Fernsehen

Country Status (6)

Country Link
EP (1) EP0920776A1 (de)
JP (1) JP2000509936A (de)
KR (1) KR20000064924A (de)
CN (1) CN1217849A (de)
GB (1) GB9703192D0 (de)
WO (1) WO1998036568A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100747535B1 (ko) * 2005-04-04 2007-08-08 엘지전자 주식회사 시청 등급 정보를 포함한 디지털 방송 신호를 처리하는 방법
CN102404636A (zh) * 2010-09-13 2012-04-04 康佳集团股份有限公司 一种数字机顶盒节目管理的方法和数字机顶盒

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1104583A (en) * 1981-12-19 1983-06-30 Frederick William Chard Method and apparatus for editing the output of a television
US4930160A (en) * 1987-09-02 1990-05-29 Vogel Peter S Automatic censorship of video programs
GB2267768A (en) * 1992-06-02 1993-12-15 Paul Henry Mcbride TV signal interrupter.
US5550575A (en) * 1994-05-04 1996-08-27 West; Brett Viewer discretion television program control system
US5710815A (en) * 1995-06-07 1998-01-20 Vtech Communications, Ltd. Encoder apparatus and decoder apparatus for a television signal having embedded viewer access control data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9836568A1 *

Also Published As

Publication number Publication date
GB9703192D0 (en) 1997-04-02
JP2000509936A (ja) 2000-08-02
CN1217849A (zh) 1999-05-26
WO1998036568A1 (en) 1998-08-20
KR20000064924A (ko) 2000-11-06

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19990222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20021119