DE3423846A1 - Television receiver with a teletext decoder - Google Patents
Television receiver with a teletext decoderInfo
- Publication number
- DE3423846A1 DE3423846A1 DE19843423846 DE3423846A DE3423846A1 DE 3423846 A1 DE3423846 A1 DE 3423846A1 DE 19843423846 DE19843423846 DE 19843423846 DE 3423846 A DE3423846 A DE 3423846A DE 3423846 A1 DE3423846 A1 DE 3423846A1
- Authority
- DE
- Germany
- Prior art keywords
- page
- television receiver
- signal
- memory
- teletext
- 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- Withdrawn
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
Abstract
Description
Fernsehempfänger mit einem Videotext-Decoder Television receiver with a teletext decoder
Beim Videotext werden digitale Signale, aus denen im Fernsehempfänger die Signale für die einzelnen Seiten gewonnen werden, während zwei Zeilen der vertikalen Austastzeit übertragen. Da diese Übertragungszeit verglichen mit der eines ganzen Halbbildes relativ kurz ist, dauert es im Fernsehempfänger jeweils eine bestimmte Zeit, bis das vollständige Signal für eine bestimmte Seite vorhanden ist. Diese Zeit muß der Bedienende nach der Eingabe einer Seitennummer warten. Ihre Dauer ist sehr unterschiedlich und liegt etwa in der Zeit zwischen 5 bis maximal 24 Sekunden.Teletext uses digital signals from those in the television receiver the signals for each side are obtained while two lines are vertical Transfer blanking time. As this transmission time compared with that of a whole Field is relatively short, it takes a certain time in the television receiver Time until the full signal is available for a specific page. These The operator has to wait after entering a page number. Your duration is very different and is approximately in the time between 5 and a maximum of 24 seconds.
In der Praxis kommt es vor, daß zum Beispiel der Bedienende zunächst eine Übersichts-Seite, z.B. Wirtschaft" wählt und anschließend an Hand dieser Übersichts-Seite andere Seiten mit Detailinförmationen auswählt. Dabei besteht oft die Notwendigkeit, zur Auswahl anderer Seiten mit Detailinformationen zunächst auf die Übersichts-Seite zurückzukehren. Bei erneuter Wahl der Übersichts-Seite muß dann der Bedienende erneut die genannte Wartezeit abwarten, nach der die Ubersichts-Seite wiederum erneut verfügbar ist.In practice it happens that, for example, the operator first select an overview page, e.g. Economy "and then use this overview page selects other pages with detailed information. It is often necessary to to select other pages with detailed information first go to the overview page to return. When the overview page is selected again, the operator has to do it again Wait for the specified waiting time, after which the overview page is available again is.
Insbesondere bei häufiger Rückkehr auf die Ubersichts-Seite ist die jeweilige Wartezeit für den Bedienenden lästig.In particular, if you return to the overview page frequently, the respective waiting time annoying for the operator.
Der Erfindung liegt die Aufgabe zugrunde, einen Fernsehempfänger mit Videotext-Decoder so auszubilden, daß bei einer Rückkehr auf eine bestimmte Seite keine Wartezeit anfällt.The invention is based on the object of a television receiver Teletext decoder to be designed so that when you return to a specific page there is no waiting time.
Diese Aufgabe wird durch die im Anspruch 1 beschriebene Erfindung gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved by the invention described in claim 1 solved. Advantageous further developments of the invention are described in the subclaims.
Die erfindungsgemäße Lösung ist mit relativ geringem Aufwand realisierbar, weil jeweils nur das Signal für die Dauer von zwei Halbbildern für die betreffende Seite gespeichert werden muß. Derartige Speicher sind handelsüblich und ermöglichen, daß eine bestimmte Seite, die bereits einmal vollständig empfangen wurde , nach Bedarf ohne jede Verzögerung wieder dargestellt werden kann. Der Bedienende kann also zwischen der Betrachtung der Seiten mit Detail-Angaben immer ohne Verzögerung auf die Seite mit der Übersicht oder auf eine sonstige ausgewählte, häufiger verwendete Seite zurückkehren.The solution according to the invention can be implemented with relatively little effort, because in each case only the signal for the duration of two fields for the relevant Page needs to be saved. Such memories are commercially available and allow that a certain page, which has already been completely received once, after As required can be displayed again without any delay. The operator can so there is always no delay between viewing the pages with detailed information on the page with the overview or on another selected, frequently used Return page.
Vorzugsweise enthält der Videotext-Decoder ein manuelles Bedienungsmittel, bei dessen Betätigung das Signal für die jeweils dargestellte Seite in den Speicher eingeschrieben wird. Mit einem weiteren manuellen Bedienungsmittel kann dann dieses Signal aus dem Speicher ausgelesen und ohne Verzögerung zur erneuten Darstellung der zugeordneten Seite verwendet werden.The teletext decoder preferably contains a manual operating means, when it is activated, the signal for the respective displayed page is transferred to the memory is enrolled. This can then be done with a further manual operating means The signal is read from the memory and can be displayed again without delay of the assigned page.
Es ist auch möglich, den Decoder so auszubilden, daß nach der Wahl einer neuen Seite das Signal der vorher abgebildeten Seite automatisch gespeichert wird. Das hat den Vorteil, daß dann beim Übergang auf eine neue Seite die verlassene Seite selbsttitig gespeichert wird und nicht bei der Wahl einer neuen Seite das vollständige Signal der vorangehenden Seite versehentlich gelöscht wird. Es kann auch eine Löschsperre gegen unbeabsichtigtes Löschen einer gespeicherten Seite vorgesehen sein, um z.B. das Löschen einer gespeicherten, besonders wichtigen oder häufig benutzten Seite zu verhindern. Es ist auch möglich, einen Speicher für mehrere häufig benutzte Seiten vorzusehen, um im Bedarfsfalle ohne Verzögerung auf mehrere Seiten zurückgreifen zu können.It is also possible to design the decoder so that according to the choice on a new page, the signal from the previous page is automatically saved will. This has the advantage that when you move on to a new page, the page you left off Page is saved automatically and not when a new page is selected the complete signal of the previous page is accidentally deleted. It can also one Delete lock to prevent unintentional deletion of a saved Page can be provided, e.g. to delete a saved, particularly important or frequently used page. It is also possible to have a memory for several frequently used pages to be provided, in case of need without delay to be able to fall back on several pages.
Die Erfindung wird an Hand der Zeichnung näher erläutert.The invention is explained in more detail with reference to the drawing.
In der Figur speist die Antenne 1 den Empfangsteil 2 eines Fernsehempfängers. Dieser enthält den üblichen HF-Verstärker, Mischstufe, Oszillator, Videodemodulator und dergleichen.In the figure, the antenna 1 feeds the receiving part 2 of a television receiver. This contains the usual RF amplifier, mixer, oscillator, video demodulator and the same.
Bei üblichem Fernseh-Rundfunkempfang ist der Empfangsteil 2 über die Videostufe 4, den Umschalter 4 und den Verstärker 5 mit der Bildröhre 6 verbunden.With normal television radio reception, the receiving part 2 is via the Video stage 4, the switch 4 and the amplifier 5 connected to the picture tube 6.
An den Ausgang des Empfangsteils 2 ist weiterhin der Videotext-Decoder 7 angeschlossen, dessen Ausgang mit dem Umschalter 4 mit der Bildröhre 6 verbunden werden kann. Für-Videotext-Empfang wird der Videotext-Decoder über das Bedienfeld 8 betätigt und der Umschalter 4 in die untere Stellung umgelegt. Der Decoder 7 erzeugt aus den während der Vertikalaustastzeit übertragenen digitalen Signalen an seinem Ausgang analoge Steuersignale für die Bildröhre 6, die jeweils eine Seite der Videotext-Information darstellen. Mit dem Bedienfeld 8 können die einzelnen Seiten des angebotenen Videotext-Programms ausgewählt werden.The teletext decoder is still at the output of the receiving part 2 7 connected, the output of which is connected to the switch 4 with the picture tube 6 can be. For teletext reception, the teletext decoder is operated via the control panel 8 actuated and the switch 4 switched to the lower position. The decoder 7 generates from the digital signals transmitted during the vertical blanking time at his Output analog control signals for the picture tube 6, each one page of the teletext information represent. With the control panel 8, the individual pages of the teletext program offered to be selected.
Wenn auf dem Bildschirm der Bildröhre eine bestimmte Seite dargestellt wird, kann das vollständige Signale für diese Seite durch Betätigung des Bedienungsmittels 9 in dem Speicher 10, einem sogenannten Seitenspeicher, gespeichert werden. Die Bildwiedergabe wird dadurch zunächst nicht beeinfluß. Durch Betätigung des Bedienungsmittels 11 kann das Signal aus dem Speicher 10 wieder abgerufen und zur verzögerungsfreien Darstellung der zugeordneten Seite der Bildröhre zugeführt werden. Ohne den Speicher 10 wäre dieses Signal bereits gelöscht und müßte mit einer Wartezeit erneut aufgebaut werden, weil inzwischen von dem Bedienenden andere Seiten angewählt wurden.When a certain page is displayed on the screen of the picture tube the complete signals for this side can be activated by operating the operating means 9 in the Memory 10, a so-called page memory, is stored will. This initially does not affect the image reproduction. By actuation of the operating means 11 can retrieve the signal from the memory 10 again and for the delay-free display of the associated side of the picture tube supplied will. Without the memory 10, this signal would already be deleted and would have to be with a Waiting time to be built up again because the operator has meanwhile changed sides were selected.
Der Speicher 10 kann sowohl das digitale Videotext-Signal als auch das analoge Schriftzeichen-Signal speichern. Die Bedienungsmittel 9, 11 können auch durch ein einziges Bedienungsmittel ersetzt sein, bei dessen Betätigung abwechselnd jeweils das Signal der abgebildeten Seite gespeichert und für die Bildwiedergabe wieder ausgelesen wird. Diese verschiedene Bedienung des Videotext-Decoders 7 erfolgt vorzugsweise durch eine Fernbedienung. Der Speicher 10 ist vorzugsweise in dem Videotext-Decoder 7 enthalten.The memory 10 can both the digital teletext signal as well store the analog character signal. The operating means 9, 11 can also be replaced by a single operating means, when operated alternately in each case the signal of the side shown is saved and used for image reproduction is read out again. This different operation of the teletext decoder 7 takes place preferably by remote control. The memory 10 is preferably in the teletext decoder 7 included.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843423846 DE3423846A1 (en) | 1984-06-28 | 1984-06-28 | Television receiver with a teletext decoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843423846 DE3423846A1 (en) | 1984-06-28 | 1984-06-28 | Television receiver with a teletext decoder |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3423846A1 true DE3423846A1 (en) | 1986-01-09 |
Family
ID=6239378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843423846 Withdrawn DE3423846A1 (en) | 1984-06-28 | 1984-06-28 | Television receiver with a teletext decoder |
Country Status (1)
Country | Link |
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DE (1) | DE3423846A1 (en) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3634757C1 (en) * | 1986-10-11 | 1988-01-14 | Bayerische Rundfunkwerbung | Method for receiving periodically repeating teletext data |
US5600573A (en) | 1992-12-09 | 1997-02-04 | Discovery Communications, Inc. | Operations center with video storage for a television program packaging and delivery system |
US5659350A (en) * | 1992-12-09 | 1997-08-19 | Discovery Communications, Inc. | Operations center for a television program packaging and delivery system |
US5682195A (en) * | 1992-12-09 | 1997-10-28 | Discovery Communications, Inc. | Digital cable headend for cable television delivery system |
US5798785A (en) * | 1992-12-09 | 1998-08-25 | Discovery Communications, Inc. | Terminal for suggesting programs offered on a television program delivery system |
US5826167A (en) * | 1994-09-12 | 1998-10-20 | Scientific-Atlanta, Inc. | Bi-directional cable television system including a UHF filter |
US5986690A (en) | 1992-12-09 | 1999-11-16 | Discovery Communications, Inc. | Electronic book selection and delivery system |
DE19844125A1 (en) * | 1998-09-25 | 2000-02-17 | Siemens Ag | Producing image on screen, e.g. for teletext |
US6181335B1 (en) | 1992-12-09 | 2001-01-30 | Discovery Communications, Inc. | Card for a set top terminal |
US6463585B1 (en) | 1992-12-09 | 2002-10-08 | Discovery Communications, Inc. | Targeted advertisement using television delivery systems |
US6738978B1 (en) | 1992-12-09 | 2004-05-18 | Discovery Communications, Inc. | Method and apparatus for targeted advertising |
US7835989B1 (en) | 1992-12-09 | 2010-11-16 | Discovery Communications, Inc. | Electronic book alternative delivery systems |
US7849393B1 (en) | 1992-12-09 | 2010-12-07 | Discovery Communications, Inc. | Electronic book connection to world watch live |
US7861166B1 (en) | 1993-12-02 | 2010-12-28 | Discovery Patent Holding, Llc | Resizing document pages to fit available hardware screens |
US7865567B1 (en) | 1993-12-02 | 2011-01-04 | Discovery Patent Holdings, Llc | Virtual on-demand electronic book |
US7865405B2 (en) | 1992-12-09 | 2011-01-04 | Discovery Patent Holdings, Llc | Electronic book having electronic commerce features |
US8073695B1 (en) | 1992-12-09 | 2011-12-06 | Adrea, LLC | Electronic book with voice emulation features |
US8095949B1 (en) | 1993-12-02 | 2012-01-10 | Adrea, LLC | Electronic book with restricted access features |
US8578410B2 (en) | 2001-08-03 | 2013-11-05 | Comcast Ip Holdings, I, Llc | Video and digital multimedia aggregator content coding and formatting |
US8621521B2 (en) | 2001-08-03 | 2013-12-31 | Comcast Ip Holdings I, Llc | Video and digital multimedia aggregator |
US9053640B1 (en) | 1993-12-02 | 2015-06-09 | Adrea, LLC | Interactive electronic book |
US9078014B2 (en) | 2000-06-19 | 2015-07-07 | Comcast Ip Holdings I, Llc | Method and apparatus for targeting of interactive virtual objects |
US9286294B2 (en) | 1992-12-09 | 2016-03-15 | Comcast Ip Holdings I, Llc | Video and digital multimedia aggregator content suggestion engine |
-
1984
- 1984-06-28 DE DE19843423846 patent/DE3423846A1/en not_active Withdrawn
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3634757C1 (en) * | 1986-10-11 | 1988-01-14 | Bayerische Rundfunkwerbung | Method for receiving periodically repeating teletext data |
US7849393B1 (en) | 1992-12-09 | 2010-12-07 | Discovery Communications, Inc. | Electronic book connection to world watch live |
US5734853A (en) | 1992-12-09 | 1998-03-31 | Discovery Communications, Inc. | Set top terminal for cable television delivery systems |
US7835989B1 (en) | 1992-12-09 | 2010-11-16 | Discovery Communications, Inc. | Electronic book alternative delivery systems |
US5600573A (en) | 1992-12-09 | 1997-02-04 | Discovery Communications, Inc. | Operations center with video storage for a television program packaging and delivery system |
US5798785A (en) * | 1992-12-09 | 1998-08-25 | Discovery Communications, Inc. | Terminal for suggesting programs offered on a television program delivery system |
US9286294B2 (en) | 1992-12-09 | 2016-03-15 | Comcast Ip Holdings I, Llc | Video and digital multimedia aggregator content suggestion engine |
US5986690A (en) | 1992-12-09 | 1999-11-16 | Discovery Communications, Inc. | Electronic book selection and delivery system |
US8347345B1 (en) | 1992-12-09 | 2013-01-01 | Cox Communications, Inc. | Television terminal modem |
US6052554A (en) | 1992-12-09 | 2000-04-18 | Discovery Communications, Inc. | Television program delivery system |
US6181335B1 (en) | 1992-12-09 | 2001-01-30 | Discovery Communications, Inc. | Card for a set top terminal |
US6408437B1 (en) | 1992-12-09 | 2002-06-18 | Discovery Communications, Inc. | Reprogrammable terminal for suggesting programs offered on a television program delivery system |
US6463585B1 (en) | 1992-12-09 | 2002-10-08 | Discovery Communications, Inc. | Targeted advertisement using television delivery systems |
US6515680B1 (en) | 1992-12-09 | 2003-02-04 | Discovery Communications, Inc. | Set top terminal for television delivery system |
US6539548B1 (en) | 1992-12-09 | 2003-03-25 | Discovery Communications, Inc. | Operations center for a television program packaging and delivery system |
US6738978B1 (en) | 1992-12-09 | 2004-05-18 | Discovery Communications, Inc. | Method and apparatus for targeted advertising |
US7716349B1 (en) | 1992-12-09 | 2010-05-11 | Discovery Communications, Inc. | Electronic book library/bookstore system |
US5682195A (en) * | 1992-12-09 | 1997-10-28 | Discovery Communications, Inc. | Digital cable headend for cable television delivery system |
US8276183B1 (en) | 1992-12-09 | 2012-09-25 | Cox Communications, Inc. | Television terminal data storage |
US5659350A (en) * | 1992-12-09 | 1997-08-19 | Discovery Communications, Inc. | Operations center for a television program packaging and delivery system |
US8073695B1 (en) | 1992-12-09 | 2011-12-06 | Adrea, LLC | Electronic book with voice emulation features |
US7865405B2 (en) | 1992-12-09 | 2011-01-04 | Discovery Patent Holdings, Llc | Electronic book having electronic commerce features |
US8060905B1 (en) | 1992-12-09 | 2011-11-15 | Comcast Ip Holdings I, Llc | Television delivery system having interactive electronic program guide |
US7865567B1 (en) | 1993-12-02 | 2011-01-04 | Discovery Patent Holdings, Llc | Virtual on-demand electronic book |
US8095949B1 (en) | 1993-12-02 | 2012-01-10 | Adrea, LLC | Electronic book with restricted access features |
US7861166B1 (en) | 1993-12-02 | 2010-12-28 | Discovery Patent Holding, Llc | Resizing document pages to fit available hardware screens |
US9053640B1 (en) | 1993-12-02 | 2015-06-09 | Adrea, LLC | Interactive electronic book |
US5826167A (en) * | 1994-09-12 | 1998-10-20 | Scientific-Atlanta, Inc. | Bi-directional cable television system including a UHF filter |
DE19844125A1 (en) * | 1998-09-25 | 2000-02-17 | Siemens Ag | Producing image on screen, e.g. for teletext |
US8548813B2 (en) | 1999-06-25 | 2013-10-01 | Adrea, LLC | Electronic book with voice emulation features |
US9099097B2 (en) | 1999-06-25 | 2015-08-04 | Adrea, LLC | Electronic book with voice emulation features |
US9078014B2 (en) | 2000-06-19 | 2015-07-07 | Comcast Ip Holdings I, Llc | Method and apparatus for targeting of interactive virtual objects |
US9813641B2 (en) | 2000-06-19 | 2017-11-07 | Comcast Ip Holdings I, Llc | Method and apparatus for targeting of interactive virtual objects |
US8578410B2 (en) | 2001-08-03 | 2013-11-05 | Comcast Ip Holdings, I, Llc | Video and digital multimedia aggregator content coding and formatting |
US8621521B2 (en) | 2001-08-03 | 2013-12-31 | Comcast Ip Holdings I, Llc | Video and digital multimedia aggregator |
US10140433B2 (en) | 2001-08-03 | 2018-11-27 | Comcast Ip Holdings I, Llc | Video and digital multimedia aggregator |
US10349096B2 (en) | 2001-08-03 | 2019-07-09 | Comcast Ip Holdings I, Llc | Video and digital multimedia aggregator content coding and formatting |
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