EP1290875A1 - Systeme d'affichage d'information teletexte et appareil de television ou magnetoscope contenant un tel systeme - Google Patents

Systeme d'affichage d'information teletexte et appareil de television ou magnetoscope contenant un tel systeme

Info

Publication number
EP1290875A1
EP1290875A1 EP01933886A EP01933886A EP1290875A1 EP 1290875 A1 EP1290875 A1 EP 1290875A1 EP 01933886 A EP01933886 A EP 01933886A EP 01933886 A EP01933886 A EP 01933886A EP 1290875 A1 EP1290875 A1 EP 1290875A1
Authority
EP
European Patent Office
Prior art keywords
information
teletext
control unit
display
programmed
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Withdrawn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
EP01933886A
Other languages
German (de)
English (en)
Inventor
Jin F. Loh
Chong M. Eng
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 EP1290875A1 publication Critical patent/EP1290875A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • H04N7/08—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
    • H04N7/0884—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 additional display-information, e.g. menu for programme or channel selection
    • H04N7/0885—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 additional display-information, e.g. menu for programme or channel selection for the transmission of subtitles

Definitions

  • System for displaying teletext information and television or NCR apparatus comprising such a system.
  • the invention relates to a system for displaying teletext information, comprising a video decoder for providing video information, a teletext decoder for providing teletext information, a display for reproducing video information or teletext information, and a control unit for controlling the information to be reproduced by the display, and to a television or NCR apparatus comprising such a system.
  • US-A-3 891 792 discloses a television character crawl display method and apparatus allowing a viewer to superimpose character information on a normal video program. In this manner a viewer can watch the video program and character information . simultaneously.
  • this known apparatus there is provided digital logic circuitry to extract the character signal from the video signal, wherein a video data mixer reinsert the character signal into the video channel. The character signal is transmitted during successive vertical blanking intervals of the television image signal.
  • the known apparatus shows the disadvantage that the viewer can only switch on or off the display of the character information on the display screen, wherein the complete message will be displayed if the character information display is switched on.
  • the invention aims to provide an improved system of the above-mentioned type, wherein the above-mentioned disadvantages are overcome.
  • control unit is programmed to allow a user to select teletext information for reproduction by the display as a teletext information bar in a video image reproduced from the video information.
  • teletext information can be displayed substantially without obstructing the normal video program reproduced simultaneously with the teletext information bar.
  • the teletext decoder is advantageously used to allow the user to select any teletext information for reproduction by the display in the information bar. In this manner a very flexible system for displaying teletext information in a normal video image is obtained.
  • a tuner 1 receives an antenna or cable signal at an input 2 and provides an output signal to a video decoder 3 and a teletext decoder 4.
  • the video decoder 3 provides video information in RGB format at an output 5, which video information is suitable for reproduction by a display device 6.
  • the teletext decoder 4 provides teletext information in RGB format at an output 7 also suitable for reproduction by the display 6. Both outputs 5 and 7 are connected to a device 8 having an output connected to the display 6.
  • the system further comprises a control unit 9 which is made as a ⁇ programmable device. It is noted that in practice the control unit 9 and teletext decoder 4 can be made as a single-chip micro-controller with integrated teletext decoder.
  • the control unit 9 can be controlled by means of a remote control 10 which can be operated by a user. In a conventional manner, the user can operate the remote control 10 to watch a normal video program or teletext information by switching on teletext. In this case the complete screen of display 6 is occupied by teletext display.
  • the control unit 9 may be programmed in such a manner that a mixed mode is possible, in which case teletext information is displayed mixed with the video program. However in such a mixed mode, watching a normal video program is not convenient.
  • the teletext decoder 4 can acquire teletext data in the background while the user is watching a normal video program.
  • This teletext data is processed by the control unit in accordance with control commands provided by the viewer and is then displayed in an information bar 11 schematically shown on the display 6.
  • the area occupied by this information bar 11 is such that the normal video program image is substantially unobstructed.
  • each teletext page is uniquely identified by 7 numbers, i.e. page magazine, page tens, page units, hours tens, hours units, hours tens, hours units, minutes tens and minutes units.
  • the user may select the desired pages for reproduction in the information bar 11 by entering this information through a menu control, i.e. a suitable graphic user interface. Programming such user interfaces is well-known to the person skilled in the art and is not further described.
  • the remote control 10 can be provided with a suitable select button 12 which may be pressed by the user when the user is viewing the desired teletext page.
  • the user may want to further specify which text from the selected teletext page or pages should be displayed in the information bar 11. For example the user may only be interested in arrival/departure information of specific flights, prices of specific shares, etc.
  • the control unit 9 can be programmed such that the user may select text of a teletext page for display, for example by selecting a region of the teletext page by means of a cursor operated by the arrow keys of the remote control 10.
  • the control unit 9 can be programmed to allow the user to enter certain keywords telling the control unit to display all lines of text of the teletext page with such keywords.
  • text selection can also be based on text colour.
  • teletext systems may comprise multi-paged text pages.
  • the selected text regions may be given an order for display in the information bar 11.
  • the teletext information is displayed in the information bar 11 in a scrolling manner.
  • the control unit 9 is programmed to allow the user to choose between several display options.
  • the selected text is continuously displayed in the information bar 11 in a scrolling manner.
  • the user may select a periodical display of the selected text during a predetermined duration and as a third option the user may choose to display the selected text only in case the teletext page has been updated.
  • the selected text is displayed during a predetermined duration.
  • the duration to display the selected text may be controlled by the user through the remote control 10.
  • the user can watch a normal video program completely unobstructed by the information bar 11 as long as there is no new information to read. As soon as new information arrives, the selected text will be displayed in the information bar 11 for the desired duration.
  • the scrolling speed can be varied by the user through the remote control 10.
  • the user may pause the scrolling of the selected text on every new line.
  • the information bar 11 is displayed at the bottom of the display 6 as shown in the drawing.
  • the control unit 9 is programmed to allow the user to move the information bar 11 by means of the conventional arrow keys of the remote control 10.
  • control unit 9 is programmed to allow the user to change the colour of the text and/or background displayed in the information bar 11.
  • a system for displaying teletext > information allowing a user to select teletext information to be displayed in an information bar displayed in the normal video program.
  • the system comprises a video decoder for providing video information, a teletext decoder for providing teletext information and a display for reproducing video information or teletext information.
  • a control unit for controlling the information to be reproduced by the display is also provided and this control unit is programmed to allow a user to select teletext information for reproduction by the display as a teletext information bar in a video image reproduced from the video information. In this manner teletext information can be displayed substantially without obstructing the normal video program reproduced simultaneously with the teletext information bar.
  • the teletext decoder is advantageously used to allow the user to select any teletext information for reproduction by the display in the information bar in various manners as described above.
  • the system is highly flexible in selecting teletext information to be displayed.
  • the invention is not restricted to the above described embodiment which can umber of ways within the scope of the attached claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Television Systems (AREA)

Abstract

L'invention concerne un système d'affichage d'information télétexte permettant à un utilisateur de sélectionner une information télétexte à présenter dans une bande d'information présente dans le programme vidéo normal. Le système comprend un décodeur vidéo permettant de présenter l'information vidéo, un décodeur de télétexte permettant de présenter l'information télétexte et un écran sur lequel s'affichent les informations vidéo ou télétexte. Le système comprend aussi une unité de commande destinée à commander la reproduction de l'information par l'écran et cette unité est programmée afin de permettre à l'utilisateur de sélectionner l'information télétexte qui doit être reproduite sur l'écran sous forme d'une bande d'information télétexte dans une image vidéo produite à partir de l'information vidéo. Le système est très souple dans le choix de l'information télétexte à présenter.
EP01933886A 2000-05-20 2001-04-25 Systeme d'affichage d'information teletexte et appareil de television ou magnetoscope contenant un tel systeme Withdrawn EP1290875A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SG200002764 2000-05-20
SG200002764A SG114461A1 (en) 2000-05-20 2000-05-20 System for displaying teletext information and television or vcr apparatus comprising such a system
PCT/EP2001/004675 WO2001091456A1 (fr) 2000-05-20 2001-04-25 Systeme d'affichage d'information teletexte et appareil de television ou magnetoscope contenant un tel systeme

Publications (1)

Publication Number Publication Date
EP1290875A1 true EP1290875A1 (fr) 2003-03-12

Family

ID=20430591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01933886A Withdrawn EP1290875A1 (fr) 2000-05-20 2001-04-25 Systeme d'affichage d'information teletexte et appareil de television ou magnetoscope contenant un tel systeme

Country Status (4)

Country Link
EP (1) EP1290875A1 (fr)
JP (1) JP2003534735A (fr)
SG (1) SG114461A1 (fr)
WO (1) WO2001091456A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004023805A1 (fr) * 2002-09-06 2004-03-18 Koninklijke Philips Electronics N.V. Televiseur, procede permettant de fournir un message a ce televiseur et systeme conçu pour mettre en oeuvre ce procede

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01246978A (ja) * 1988-03-28 1989-10-02 Toshiba Corp 画像情報受信表示装置
IT1245403B (it) * 1991-01-31 1994-09-20 Sisvel Spa Ricevitore perfezionato di trasmissioni teletext
JP3402533B2 (ja) * 1994-08-10 2003-05-06 シャープ株式会社 文字放送特殊再生装置及びテレテキスト放送特殊再生装置
JPH08154217A (ja) * 1994-11-25 1996-06-11 Sony Corp テレビジョン受信機
JPH0927930A (ja) * 1995-07-11 1997-01-28 Matsushita Electric Ind Co Ltd テレビジョン受像機
EP0766470B1 (fr) * 1995-09-29 2002-08-07 Matsushita Electric Industrial Co., Ltd. Récepteur de télévision pour télétexte
DE19733016B4 (de) * 1997-07-31 2004-07-22 Grundig Ag Fernsehgerät mit variabler Darstellung von Fernsehbild und Zusatzinformationen
JP3502253B2 (ja) * 1998-02-16 2004-03-02 シャープ株式会社 文字放送特殊再生装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0191456A1 *

Also Published As

Publication number Publication date
JP2003534735A (ja) 2003-11-18
SG114461A1 (en) 2005-09-28
WO2001091456A1 (fr) 2001-11-29

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