GB2225519B - Method of transmitting teletext signals and apparatus for receiving the same - Google Patents

Method of transmitting teletext signals and apparatus for receiving the same

Info

Publication number
GB2225519B
GB2225519B GB8925340A GB8925340A GB2225519B GB 2225519 B GB2225519 B GB 2225519B GB 8925340 A GB8925340 A GB 8925340A GB 8925340 A GB8925340 A GB 8925340A GB 2225519 B GB2225519 B GB 2225519B
Authority
GB
United Kingdom
Prior art keywords
receiving
same
teletext signals
transmitting teletext
transmitting
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 - Fee Related
Application number
GB8925340A
Other versions
GB8925340D0 (en
GB2225519A (en
Inventor
Osamu Yamada
Toru Kuroda
Akio Yanagimachi
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
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
Priority claimed from JP28586788A external-priority patent/JPH02132985A/en
Priority claimed from JP4328389A external-priority patent/JPH02224493A/en
Application filed by Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Publication of GB8925340D0 publication Critical patent/GB8925340D0/en
Publication of GB2225519A publication Critical patent/GB2225519A/en
Application granted granted Critical
Publication of GB2225519B publication Critical patent/GB2225519B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H04N7/0882—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 character code signals, e.g. for teletext
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
GB8925340A 1988-11-14 1989-11-09 Method of transmitting teletext signals and apparatus for receiving the same Expired - Fee Related GB2225519B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28586788A JPH02132985A (en) 1988-11-14 1988-11-14 Transmitting system for character broadcasting signal
JP4328389A JPH02224493A (en) 1989-02-27 1989-02-27 Data signal receiver

Publications (3)

Publication Number Publication Date
GB8925340D0 GB8925340D0 (en) 1989-12-28
GB2225519A GB2225519A (en) 1990-05-30
GB2225519B true GB2225519B (en) 1993-03-31

Family

ID=26383040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8925340A Expired - Fee Related GB2225519B (en) 1988-11-14 1989-11-09 Method of transmitting teletext signals and apparatus for receiving the same

Country Status (3)

Country Link
CN (1) CN1016552B (en)
GB (1) GB2225519B (en)
HK (1) HK132193A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2720189B2 (en) * 1989-03-03 1998-02-25 三洋電機株式会社 Teletext signal generator and teletext signal receiver
CA2154353A1 (en) * 1993-01-21 1994-08-04 Guy A. Primiano Apparatus and methods for providing close captioning in a digital program services delivery system
DE4343951A1 (en) * 1993-12-22 1995-06-29 Inst Rundfunktechnik Gmbh Method for receiving teletext data transmitted in a television signal
KR0178718B1 (en) * 1994-06-10 1999-05-01 김광호 Detection clock generator for digital data on complex image signal and data detector by detection clock

Also Published As

Publication number Publication date
CN1043053A (en) 1990-06-13
CN1016552B (en) 1992-05-06
GB8925340D0 (en) 1989-12-28
GB2225519A (en) 1990-05-30
HK132193A (en) 1993-12-10

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19940322

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19991109