WO2003044779A1 - Procede de generation et de codage de donnees de type teletexte sur bande magnetique audiovisuelle et lecteur de donnees de type teletexte - Google Patents

Procede de generation et de codage de donnees de type teletexte sur bande magnetique audiovisuelle et lecteur de donnees de type teletexte Download PDF

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Publication number
WO2003044779A1
WO2003044779A1 PCT/CN2002/000549 CN0200549W WO03044779A1 WO 2003044779 A1 WO2003044779 A1 WO 2003044779A1 CN 0200549 W CN0200549 W CN 0200549W WO 03044779 A1 WO03044779 A1 WO 03044779A1
Authority
WO
WIPO (PCT)
Prior art keywords
audiovisual
teletext data
tape
teletext
recording
Prior art date
Application number
PCT/CN2002/000549
Other languages
English (en)
Chinese (zh)
Inventor
Tao Chen
Xiaoying Gao
Xiaoming Lu
Original Assignee
Beijing Dvt Technology Co., 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 Beijing Dvt Technology Co., Ltd filed Critical Beijing Dvt Technology Co., Ltd
Priority to AU2002327273A priority Critical patent/AU2002327273A1/en
Publication of WO2003044779A1 publication Critical patent/WO2003044779A1/fr

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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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/032—Electronic editing of digitised analogue information signals, e.g. audio or video signals on tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes

Abstract

L'invention concerne un procédé de génération/enregistrement de données télétexte et un moyen de lecture desdites données. Les données télétexte doivent être mises en forme selon le format du fichier de l'invention, après quoi elles sont soumise à la compression, la traduction et la mise en forme selon le format des données, elles sont mises en paquet sous forme de trames de données séparées et elles sont codées avec deux chiffres binaires comme son unité d'enregistrement minimum, et le signal positif et le signal négatif de l'onde sinusoïdale de fréquence sont représentés sous forme de chiffre binaire. Les informations télétexte sont enregistrées sur la piste droite de la bande de cassette, alors que le signal audio d'accompagnement est enregistré sur la piste de gauche, si bien qu'une bande mère d'enregistrement audiovisuel est formée. L'utilisation d'un système de copie grande vitesse à bande de cassette permet la copie du contenu de la bande mère audiovisuelle et la production de nombreuses bandes audiovisuelles. Avec la bande audiovisuelle, le signal audio et les informations « texte » peuvent être obtenus par un lecteur d'enregistrement visualisable possédant un moyen de décodage.
PCT/CN2002/000549 2001-08-07 2002-08-07 Procede de generation et de codage de donnees de type teletexte sur bande magnetique audiovisuelle et lecteur de donnees de type teletexte WO2003044779A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002327273A AU2002327273A1 (en) 2001-08-07 2002-08-07 Teletext data generating and encoding method on the audiovisual magnetic tape and the teletext data player

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01127721 2001-08-07
CN01127721.1 2001-08-07

Publications (1)

Publication Number Publication Date
WO2003044779A1 true WO2003044779A1 (fr) 2003-05-30

Family

ID=4667641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000549 WO2003044779A1 (fr) 2001-08-07 2002-08-07 Procede de generation et de codage de donnees de type teletexte sur bande magnetique audiovisuelle et lecteur de donnees de type teletexte

Country Status (2)

Country Link
AU (1) AU2002327273A1 (fr)
WO (1) WO2003044779A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023907A (en) * 1978-06-12 1980-01-03 Yuasa Shoji Co Ltd Magnetic recording and reproducing device
JPS5923981A (ja) * 1982-07-30 1984-02-07 Toshiba Corp 画像再生装置
CN86207130U (zh) * 1986-09-28 1988-11-16 彭明 外国语电子视听装置
CN2150594Y (zh) * 1992-08-09 1993-12-22 李国秀 视听语言学习机
CN2184964Y (zh) * 1993-11-16 1994-12-07 张玉清 视听磁带编码录制机
CN1212428A (zh) * 1997-09-24 1999-03-31 张津平 磁带显示放音装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023907A (en) * 1978-06-12 1980-01-03 Yuasa Shoji Co Ltd Magnetic recording and reproducing device
JPS5923981A (ja) * 1982-07-30 1984-02-07 Toshiba Corp 画像再生装置
CN86207130U (zh) * 1986-09-28 1988-11-16 彭明 外国语电子视听装置
CN2150594Y (zh) * 1992-08-09 1993-12-22 李国秀 视听语言学习机
CN2184964Y (zh) * 1993-11-16 1994-12-07 张玉清 视听磁带编码录制机
CN1212428A (zh) * 1997-09-24 1999-03-31 张津平 磁带显示放音装置

Also Published As

Publication number Publication date
AU2002327273A1 (en) 2003-06-10

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