DK167725B1

DK167725B1 - Method for receiving teletext data which is repeated periodically

Info

Publication number: DK167725B1
Application number: DK315588A
Authority: DK
Inventors: Gerhard Eitz; Herbert Koch; Karl-Ulrich Oberlies
Original assignee: Bayerische Rundfunkwerbung
Priority date: 1986-10-11
Filing date: 1988-06-10
Publication date: 1993-12-06
Also published as: FI882775A; JPS63502950A; DK315588D0; JPH0767168B2; FI87293B; ATE69531T1; DK315588A; FI87293C; FI882775A0; WO1988002973A2; WO1988002973A3

Abstract

In a teletext system, in order to be able to "thumb through" the programme summaries of several days of transmission without making considerable investments in the teletext decoders on the recipient side, it is proposed to submit in the form of a tabulation on one separate page of teletext the page numbers of the total quantity of teletext pages in a repetition cycle or in a part of the latter, and to insert them in an intermediate memory on the recipient side. If the user has selected a precise teletext page, a check is made by comparing, with the page numbers inserted in the intermediate memory, whether the desired number of the teletext page figures in the cycle or in a part of the latter, after which said page is looked for if necessary. Furthermore, the decoder automatically checks on the basis of the number of the desired teletext page, and comparing again with the page numbers in the intermediate memory, whether the numbers of the following teletext pages figure in the cycle or in a part of the latter, after which a search is made for the following pages identified as figuring in said cycle, which are inserted in the intermediate memory and reproduced upon a special instruction from the user.

Description

DK 167725 B1DK 167725 B1

Opfindelsen angår en fremgangsmåde som angivet i krav l's indledning. En sådan fremgangsmåde kendes fra tidsskriftet "Funkschau", bind 6, 1985, pp 53-56.The invention relates to a method as set out in the preamble of claim 1. Such a method is known from the journal "Funkschau", Volume 6, 1985, pp. 53-56.

Til modtagelse af teletekstdata er det fra dette 5 tidsskrift kendt at fraseparere de i fjernsynssignalet medoverførte teletekstdata og at mellemlagre dem i et sidelager samlet efter teletekstsider. I tilfælde af et mellemlager med ringe kapacitet, eksempelvis til to til fire sider, mellemlagres kun bestemte sider, som 10 brugeren i forvejen har udvalgt i et sidenummerlager.For receiving teletext data, it is known from this journal to separate the teletext data transmitted in the television signal and to store it in a page store together after teletext pages. In the case of a low capacity intermediate repository, for example for two to four pages, only certain pages that the user has already selected in a page number repository are stored.

Hvis ikke disse angivne sidenumre er til stede i cyklus'en eller det pågældende cyklusafsnit, kan man ikke finde frem til den pågældende teletekstside, således at søgeprocesen fortsætter uafbrudt. I en sådan si-15 tuation véd brugeren ikke, om ventetiden har været for kort eller om den ønskede teleteksside mangler i cyklus'en. Desuden vil det dertil reserverede område i sidemellemlageret blive ubenyttet. Den samme ulempe består, når brugeren trykker på "næste side"-tasten for 20 at anvise den næste side i sin forprogrammerede siderækkefølge.If these specified page numbers are not present in the cycle or cycle section, the relevant teletext page cannot be found, so the search process continues uninterrupted. In such a situation, the user does not know if the waiting time has been too short or if the desired teletext page is missing in the cycle. In addition, the reserved area in the side spacer will be unused. The same disadvantage exists when the user presses the "next page" key to assign the next page in its pre-programmed page order.

Opfindelsen har til opgave at forbedre en fremgangsmåde af den indledningsvis omhandlede art således, at der spares på unødig ventetid ved valg af den ønske-25 de eller "næste" teletekstside, og at samtlige lagerpladser i sidemellemlageret udnyttes optimalt.The object of the invention is to improve a method of the kind initially referred to, so that unnecessary waiting time is saved when choosing the desired or "next" teletext page and that all storage spaces in the page intermediate storage are utilized optimally.

Denne opgave løses ifølge opfindelsen med de foranstaltninger, der er angivet i krav 1, hvorved den for kendt teknik gældende søgeproces forkortes væsent-30 ligt, og en vedvarende belægning af lagerpladser i sidemellemlageret tillige sikres.This task is solved according to the invention by the measures set forth in claim 1, thereby substantially shortening the search process applicable to the prior art and ensuring a continuous occupancy of storage spaces in the side space.

En fordelagtig videreudvikling af fremgangsmåden ifølge opfindelsen fremgår af underkravene.An advantageous further development of the method according to the invention is evident from the subclaims.

Opfindelsen er i det følgende forklaret nærmere 35 på grundlag af tegningerne, hvor fig. 1 viser indholdet af en særskilt teletekstside, som udviser alle i cyklus'en hhv. cyklus- 2The invention is explained in greater detail below on the basis of the drawings, in which fig. 1 shows the contents of a separate teletext page which shows everyone in the cycle respectively. cycle 2

Ulv ID// D IWolf ID // D I

afsnittet forekommende teletekstsider, hvorhos enkelte sider er forsynet med specielle kendinger, fig. 2 en række sidenumre, som udgående fra en netop valgt side kan vælges ved betjening af specielle 5 vælgetaster, fig. 3 et blokdiagram over en teletekstmodtager, som arbejder efter fremgangsmåden ifølge opfindelsen, fig. 4 en skematisk fremstilling af en udvidelse af det i fig. 1 viste udførelseseksempel med flere 10 særskilte teletekstsider separat for sidenumre, undersider (multipelsider)- numre og sidetitler, og fig. 5 et skematisk billede af en fjernsynsmodtager, hvorpå de ifølge udførelseseksemplet i fig. 4 udvundne titler er indikeret til brugervejledning.the section on teletext pages, some pages with special notifications, fig. 2 shows a number of page numbers which can be selected from a particular page selected by operating special 5 selection keys; FIG. 3 is a block diagram of a teletext receiver operating in accordance with the method of the invention; FIG. 4 is a schematic representation of an extension of the embodiment of FIG. 1 shows several separate separate teletext pages for page numbers, sub-pages (multiple pages) - numbers and page titles, and fig. 5 is a schematic view of a television receiver on which, according to the embodiment of FIG. 4 extracted titles are indicated for user manual.

15 I fig. 1 vises indholdet af en særskilt tele tekstside, som overføres lejlighedsvis i cyklus'en og automatisk vælges og udlæses i modtagersidens teletekstdekoder. Som det fremgår af fig. 1, er numrene på de i en teletekstcyklus eller et cyklusafsnit forekom-20 mende sider (hvortil også kan høre multipelsider) opført fortløbende i en af 40 spalter og 20 rækker bestående tabel. Sidenumrene #410, #430, #440, #500 er markeret med en springkending "/", idet disse markerede sider udgør den første side i en gruppe af indholdsmæs-25 sigt sammenhørende sider, f.eks. programhenvisningssider for et bestemt kalenderdøgn. Da side #440 er en multipelside bestående af siderne #440/1 og #440/2, er den til forskel fra de andre sider i det betragtede eksempel ikke markeret med springkendingen "/", men med 30 springkendingen "B". I eksemplet i fig. 1 gælder følgende gruppevise orden: 3 DK 167725 B1 #410, #411, #412 Programhenvisningssider for sendedøgnet 01.01.In FIG. 1 shows the contents of a separate teletext text page, which is occasionally transmitted in the cycle and automatically selected and read out in the recipient page's teletext decoder. As shown in FIG. 1, the numbers of the pages contained in a teletext cycle or cycle section 20 pages (which may also include multiple pages) are listed consecutively in one of 40 columns and 20 rows of existing tables. The page numbers # 410, # 430, # 440, # 500 are marked with a leap "/", these selected pages being the first page of a group of content related pages, e.g. program referral pages for a specific calendar day. Since page # 440 is a multiple page consisting of pages # 440/1 and # 440/2, unlike the other pages in the example considered, it is not marked with the jump command "/" but with the 30 jump command "B". In the example of FIG. 1 applies to the following group order: 3 DK 167725 B1 # 410, # 411, # 412 Program reference pages for broadcast day 01.01.

5 1987 1 ARD-programmet, hvorhos enkeltsiderne #411, #412 og #413 er markeret med kendingen 10 #430, #431, #432 Programhenvisningssider for sendedøgnet 02.01.5 1987 1 ARD program, where single pages # 411, # 412 and # 413 are marked with the commands 10 # 430, # 431, # 432 Program reference pages for broadcast day 02.01.

1987 i ARD-programmet.1987 in the ARD program.

15 #440/1, #440/2, #441, Programhenvisningssider #442 for sendedøgnet 03.01.15 # 440/1, # 440/2, # 441, Program Referral Pages # 442 for broadcast day 03.01.

#443/1, #443/2, #443/3, 1987 i ARD-programmet, #443/4 idet multipelsiden #443 20 er markeret ved hjælp af kendingen "d".# 443/1, # 443/2, # 443/3, 1987 in the ARD program, # 443/4 with the multiple page # 443 20 marked by the "d" tag.

#500 Programhenvisningsside for sendedøgnet 01.01.# 500 Program Referral Page for Transmission Day 01.01.

25 1987 i ZDF-programmet.25 1987 of the ZDF program.

Ved overføringen af den i fig. 1 viste separate teletekstside overføres kun de af de 20 rækker, som har indføringer, dvs. i eksemplet i fig. 1 overføres kun 30 rækkerne nr. 8, nr. 9 og nr. 11. Som følge af den ma-triksagtige opstilling af tabellen i fig. 1 fremkommer en sides nummer ved det tilknyttede spaltenummer og det overførte rækkenummer. Kendingerne "/", "B" og "d" overføres i klarskrift.In the transmission of the device shown in FIG. 1, only the one of the 20 rows having entries, i.e. In the example of FIG. 1, only 30 rows # 8, # 9 and # 11 are transferred as a result of the matrix-like arrangement of the table in FIG. 1, a page number appears at the associated column number and the transmitted row number. The notices "/", "B" and "d" are transferred in clear print.

35 Den gruppevise tilknytning gør det muligt, som det er vist i fig. 2, enten ved betjening af en tast DK 167725 B1 4 "næste side" indenfor en gruppe af programhenvisningssider at "bladre videre" eller ved betjening af en tast "spring" at vælge den første side i den næste gruppe direkte.The group-wide association makes it possible, as shown in FIG. 2, either by pressing a key "next page" within a group of program reference pages to "scroll" or by pressing a "jump" key to select the first page of the next group directly.

5 I fig. 3 vises blokdiagrammet over en teletekst modtager, som arbejder efter fremgangsmåden ifølge opfindelsen. Teletekstdataene bliver i et separeringstrin 10 separeret fra videosignalet og sammenstillet til enkelte sider. Hver side bliver over en udgangsled-10 ning 11 tilført en portkobling 30, som over en læ-seledning 31 tilfører den tilførte side sidemellem-lageret 40, hvis en styrekobling 50, som vil blive beskrevet nærmere, over en udgangsledning 51 tilfører portkoblingen 30 et frigivesignal. Endvidere 15 bevirker styrekoblingen 50 over en yderligere udgangsledning 32 en adressering af sidemellemlageret 40 for indlæsningsprocessen. Sidemellemlageret 40's udlæsningsproces sker ligeledes under styring af styrekoblingen 50 over en tredje udgangsledning 53.5 In FIG. 3 shows the block diagram of a teletext receiver operating according to the method of the invention. The teletext data is separated from the video signal in a separation step 10 and compiled into individual pages. Each side is fed over an output conduit 11 to a gate coupling 30 which, over a reading conduit 31, feeds to the supplied side the intermediate storage 40, if a control coupling 50, as will be described in more detail, over an output conduit 51, supplies the gate coupling 30 release signal. Further, the control coupling 50 over an additional output line 32 causes an addressing of the side intermediate storage 40 for the loading process. The readout process 40 of the intermediate memory 40 also takes place under the control of the control coupling 50 over a third output line 53.

20 Styrekoblingen m 50 får over en ledning 21 fra en sidenummer-udkoblingskreds 20 tilført sidenumrene for de på ledningen forekommende teletekstsider. Hertil detekterer udkoblingskredsen 20 nummeret for hver fra ledningen 11 over en afgreningsled-25 ning 12 tilførte videotekstside. Endvidere er styrekoblingen 50 forbundet med den af brugeren betjente indlæsning 70, som har et tastatur 71 til indlæsning af det ønskede sidenummer samt en med "næste side" betegnet tast 72 og en yderligere tast 74, som er 30 betegnet med "spring". Det ønskede sidenummer tilføres styreindretningen over en ledning 711, mens ordren "næste side" hhv. "spring" når frem til styrekoblingen 50 over ledningen 721 hhv. 741. Hvis den separate side med dataene for sidenumrene, der optræder i 35 cyklen hhv. cyklusafsanittet, bliver den automatisk tilført sidemellemlageret 40. Denne sides data bliver 5 DK 167725 B1 over datalæseledningen 54 overført til styringen 50, som konstaterer sidenumre og nedlægger dem i et sidenummerlager 60, som over en bidirektional bus 61 er forbundet med styrekoblingen 50.20 The control coupler m 50 receives over the line 21 from a page number switching circuit 20 the page numbers of the teletext pages found on the cord. To this end, the disconnect circuit 20 detects the number of each video text page supplied from a branch 11 over a branch line 12. Further, the control clutch 50 is connected to user input 70 which has a keypad 71 for entering the desired page number and a "next page" key 72 and a further key 74 which is "jump". The desired page number is applied to the control device over a line 711, while the "next page" order, respectively. "spring" reaches the control coupling 50 over the line 721 and 10, respectively. 741. If the separate page with the data for the page numbers appearing in the 35 cycle respectively. This page data is transferred to the data read line 54 over the data read line 54, which records page numbers and records them in a page number memory 60, which is connected via a bidirectional bus 61 to the control coupling 50.

5 Det antages, at brugeren fx ved betjening af tastaturet 71 har valgt sidenummer 100. Efter betjening af tasten "næste side" bestemmer styrekoblingen 50 - udgående fra det øjeblikkeligt valgte sidenum mer - det næstfølgende sidenummer i sidenummerlageret 10 60, nemlig side 410 (se også fig. 1 og fig. 2). Såsnart denne side optræder i cyklen, hvilket meddeles styrekoblingen 50 fra udkoblingskredsen, fremkommer der på udgangsledningen 51 et frigivesignal til portkoblingen 30, hvorpå side 410 over ledningen 31 15 nedlægges i sidelageret 40's lagerplads nr. 1. Adresseringen på lagerplads nr. 1 sker som nævnt under styring af styrekoblingen 50 over udgangsledningen 52.5 It is assumed that, for example, when operating the keypad 71, the user has selected page number 100. After operating the "next page" key, the control clutch 50 - starting from the currently selected page number - determines the next page number in page number storage 10 60, namely page 410 (see also Fig. 1 and Fig. 2). As soon as this side occurs in the cycle, which is notified to the control coupling 50 from the disconnection circuit, an output signal appears on the output conduit 51 to the gate coupling 30, whereupon page 410 over the conduit 31 15 is placed in the storage space # 1 of the side storage 40 as mentioned. under control of the control coupling 50 over the output line 52.

Efter stedfunden indlæsning frembringer styrekoblingen 50 over udgangsledningen 53 en udlæsningsordrer for 20 lagerplads nr. 1, hvorpå siden med nummer 410 over bussen 41 udlæses fra sidemellemlageret 40 til en processor 73, som fremviser side nr. 100 som videosignal med komponenterne R, G, B og S, eksempelvis på en fjernsynsmodtagers billedskærm.After locating, the control coupling 50 over output line 53 produces a readout order for 20 storage space # 1, whereupon the page with number 410 over the bus 41 is read out from the page intermediate 40 to a processor 73 which displays page # 100 as a video signal with components R, G, B and S, for example, on the screen of a television receiver.

25 Styrekoblingen 50 gennemfører endvidere efter stedfundet brugerønske for side nr. 410 eri automatisk belægning af de resterende lagerpladser nr. 2, nr. 3 og nr. 4 i sidemellemlageret 40 med de følgende sider svarende til sidenummerlageret. Som næstfølgende side-30 nummer påtræffes i s idenummer lageret 60 side nr. 411 som følgelig på den beskrevne måde efter fremkomst i cyklen mellemlagres på lagerplads nr. 2. På tilsvarende måde gås der frem med de næste sider.25 The control coupling 50 further, upon the occurrence of the user request for page # 410, automatically occupies the remaining storage spaces # 2, # 3 and # 4 in the page intermediate 40 with the following pages corresponding to the page number storage. The next page-30 number is found in the page number of the warehouse 60 page no. 411, which is accordingly stored in the storage space no. 2 in the described manner after arrival in the cycle.

Hver gang når brugeren ved betjening af tasten 35 72 "bladrer om", udlæses af styrekoblingen 50 den næste lagerplads, som på grundlag af den i det foran- DK 167725 Bl 6 stående beskrevne indlæsningsproces er belagt med den indholdsmæssigt "næste" side.Each time the user, when operating the key 72 72 "scrolls", the next storage space is read out by the control clutch 50 which, on the basis of the loading process described in the preceding "page", is loaded with the content "next" page.

På denne måde sikres det, at brugeren også kan "bladrer om" hurtigt. For det tilfælde, at brugeren 5 "bladrer om" så hurtigt, at den pågældende næste, i cyklen forhåndenværende side endnu ikke er forekommet i cyklen og nedlagt i sidemellemlageret 40, kan styrekoblingen 50 over en ledning 54 aktivere en indi-kering 73 på indlæsningen 70, som opfordrer bruge-10 ren til at vente.In this way it is ensured that the user can also "flip" quickly. In the event that the user 5 "flips" so quickly that the next page, which is present in the cycle, has not yet appeared in the cycle and is placed in the side spacer 40, the control coupling 50 over a line 54 can activate an indication 73 on the load. 70, which calls for use-10 clean to wait.

Med betjeningen af tasten 72 "næste side" bliver lagerpladsen for den allerede læste side ledig, hvilken lagerplads derpå belægges med igen den næste, i cyklen forhåndenværende og endnu ikke mellemlagrede si-15 de.With the operation of the "next page" key 72, the storage space for the already read page becomes vacant, which storage space is then re-occupied with the next, in the cycle available and not yet stored page 15.

Ved hjælp af fremgangsmåden ifølge opfindelsen kan endvidere såkaldte multipelsider lettere mellemlagres og udlæses. Styrekoblingen 50 ved nemlig fra sidenummerlageret 60 om og evt. hvor mange multipel-20 sider der forefindes i cyklen og kan tilsvarende påvirke søge- og ladeprocessen for sidemellemlageret 40 således, at samtlige sider i et multipelsidesæt efterhånden mellemlagres.Furthermore, by means of the method according to the invention, so-called multiple pages can be more easily stored and read out. The control clutch 50 knows from the side number bearing 60 about and possibly. how many multiple-20 pages are present in the cycle and may similarly affect the search and loading process for the page spacer 40 such that all pages of a multiple-page set are eventually stored.

Ved betjening af tasten 74 "spring", forløber 25 en lignende proces som ved betjening af tasten "næste side".By operating the 74 "jump" key, 25 proceeds similarly to the "next page" key operation.

Efter betjening af "spring"-tasten bestemmer styrekoblingen 50 - udgående fra det netop valgte sidenummer -det næstfølgende sidenummer i sidenummerla-30 geret 60, som er forsynet med en springkending. Hvis den pågældende side endnu ikke forefindes i sidemellemlageret 40, sker der en indlæsning af denne side i sidemellelageret 40, såsnart den optræder i cyklen.After operating the "jump" key, the control clutch 50 - starting from the newly selected page number - determines the next page number in the page number generator 60, which is provided with a jump command. If that particular page is not yet present in the page spacer 40, this page is loaded into the page spacer 40 as it appears in the cycle.

Efter stedfunden indlæsning fremvises siden på billed-35 skærmen.After locating the page, the page is displayed on the image-35 screen.

Udgående fra dette sidenummer på den aktiverede side sker der en automatisk belægning af de resterende 7 DK 167725 B1 lagerpladser i sidemellemlageret 40 med de følgende sider svarende til sidenummerlageret 60.Based on this page number on the activated page, the remaining 7 DK 167725 B1 storage spaces are automatically coated in the page spacer 40 with the following pages corresponding to the page number layer 60.

Det kan være hensigtsmæssigt at reservere et bestemt område i sidemellemlageret 40 alene til si-5 der, der - udgående fra det netop valgte sidenummer -kan vælges direkte ved betjening af "spring"-tasten.It may be convenient to reserve a specific area of the page spacer 40 only for pages which - based on the page number just selected - can be selected directly by operation of the "jump" key.

Ved denne variant sker der en automatisk belægning af dette specielle område med sider, der - udgående fra den netop valgte side -er forsynet med en springken-10 ding. Ved betjening af tasten "spring" bliver den næste lagerplads i dette særlige lagerområde udlæst og fremvist på billedskærmen.In this variant, this special area is automatically coated with pages which - starting from the newly selected page - are provided with a leap-10 ding. By pressing the "skip" key, the next storage location in this particular storage area is read out and displayed on the screen.

Af den foranstående sammenhæng fremgår det, at fremgangsmåden ifølge opfindelsen udnytter sidemellem-15 lageret 40's kapacitet på fx 4 eller 8 sider optimalt, og at brugeren får mulighed for med en mindst mulig ventetid at foretage en "viderebladning" i siderne i en teletekstcyklus hhv. et cyklusafsnit på lignende måde som i et tidsskrift. Ved betjening af "spring"-20 tasten kan successivt den første side i en gruppe af indholdsmæssigt sammenhængende sider vælges direkte.From the foregoing context, it will be seen that the method according to the invention utilizes the capacity of the page intermediate storage 40, for example, 4 or 8 pages optimally, and that the user is given the opportunity, with the least possible waiting time, to do a "flip" in the pages of a teletext cycle respectively. a cycle section similar to a magazine. By pressing the "jump" -20 key, the first page in a group of content-related pages can be selected directly.

Ved betjening af tasten "næste side" kan siderne i en gruppe vælges efter hinanden.By pressing the "next page" key, the pages of a group can be selected one after the other.

En udvidelse af det i fig. 1 viste udførelses-25 eksempel er anskueliggjort i fig. 4.An extension of the embodiment shown in FIG. 1 is illustrated in FIG. 4th

En separat teletekstside anvendes til at markere alle i teletekstcyklen eller cyklusafsnittet optrædende sider med kendinger. Foruden springkendingerne for en gruppe indholdsmæssigt sammenhørende sider (fig. 1) be-30 nyttes en yderligere springkending til et temaområde med flere indholdsmæssigt sammenhængende grupper. Der findes yderligere kendinger til undertitler og programhenvisningssider .A separate teletext page is used to mark all pages that appear in the teletext cycle or cycle section with celebrities. In addition to the jumping notifications for a group of content-related pages (Fig. 1), an additional jumping notation is used for a theme area with several content-related groups. Additional notifications exist for subtitles and program referral pages.

En anden teletekstside indeholder markeringer 35 for alle netop sendte multipelsider med specielle kendinger for antallet af undersider.Another teletext page contains selections 35 for all recently submitted multiple pages with special notifications for the number of subpages.

Claims

FIG. 5 shows, for example, how titles from the extras information table can be indicated from the decoder on the user guide screen. The information bar on the left shows the "ARD" area, to which the newly selected "ARD program - today" belongs. In addition, the next group "program - tomorrow" indicated by the jump key is indicated. At the far right of the decoder's information line is the next area "Program Summary - ZDF" which can be activated directly by operating the corresponding "area key". 15

A method for receiving teletext data which is periodically repeated in a cycle or cycle section and contained in a television signal, wherein the teletext data is separated from the television signal, the data associated with a respective teletext page is collected, and the thus compiled teletext pages are intermediate, whereby page numbers on teletext pages 25 are stored in a page number intermediate and the page number selected by the user is compared with the stored page numbers, and the desired teletext page in case of positive comparison result is searched in a cycle or cycle section and - if found - stored. that it has been found, in a page spacer, and where the next storage space, upon activation of a "next page" key, is selected in the page spacer and the contents of the page relating to "the next teletext page" are indicated, characterized by the following process step: DK 167725 B1 9 (a) in the page number storage the numbers are stored on all the teletext pages actually present in the cycle or cycle section, and these numbers are extracted from a table which is broadcast and received as a separate teletext page, (b) depending upon the user's selection of a particular teletext page, it is ascertained by comparison with those during the process steps ( (a) stored page numbers, whether the desired teletext page 10 page number is actually present in the cycle or cycle section, after which the search is initiated only once it has been established that the desired teletext page number is actually present; and (c) based on the page number of the desired teletext page by further comparison with the page numbers stored during process step (a), it is ascertained whether the page number of the following teletext page is actually present in cycle 20 or the cycle section, whereby the search is initiated only and the found teletext page is stored only in the page store. next storage, which indicate s by activating the "next page" key, if the actual presence of that page number has been detected.

Method according to claim 1, characterized in that in the case of multiple pages in the repetition cycle or cycle section, the sub-page numbers are sent out as a table within a further separate teletext page.

The method according to claim 1 or 2, characterized by the following additional method steps: (d) Jump notices which in each case mark the page number of the first page in a UIV ΙΟ / / DI 10 associated group of teletext pages are recorded, received and stored in the table, (e) depending on the user's choice of a desired teletext page, in response to a jumping order from the user, the next with a jumping specially marked page number in the cycle is searched and the relevant teletext page displayed after storage.

A method according to claim 3, characterized by the following further process steps: (f) From the page number of the desired teletext page, the next, by a jump command, specially marked page numbers are automatically searched for in the cycle or cycle section, stored in free storage and reproduced after a jump command from the user.

Method according to one or more of claims 1 to 4, characterized in that within a third separate teletext page, the title of at least part of the page numbers transmitted in the first table is transferred in clear print, which page numbers are reproduced in the selection of the page number in question.