DK142258B - Method of building a conference connection between more than two subscriber locations in a ring system. - Google Patents
Method of building a conference connection between more than two subscriber locations in a ring system. Download PDFInfo
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- DK142258B DK142258B DK249075AA DK249075A DK142258B DK 142258 B DK142258 B DK 142258B DK 249075A A DK249075A A DK 249075AA DK 249075 A DK249075 A DK 249075A DK 142258 B DK142258 B DK 142258B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
- H04M9/022—Multiplex systems
- H04M9/025—Time division multiplex systems, e.g. loop systems
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- Multimedia (AREA)
- Small-Scale Networks (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Time-Division Multiplex Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
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Description
(11) FREMLÆGGELSESSKRIFT 1 42258 DANMARK (51),nt-c'· h li S 9/02 «(21) Ansøgning nr. 2^+9^/75 (22) Indleveret den 4. jun. 1975 (24) Løbedeg 4. jun. 1975 (44) Ansøgningen fremlagt og ' fremlaeggeisesskriftet offentliggjort den 29· Ββρ. 1 980 DIREKTORATET FOR . u PATENT-OG VAREMÆRKEVÆSENET (30> Pnørrtet begæret fra den(11) PRESENTATION 1 42258 DENMARK (51), nt-c '· h li S 9/02' (21) Application No 2 ^ + 9 ^ / 75 (22) Filed on 4 Jun. 1975 (24) Race stage 4 Jun. 1975 (44) The application submitted and the submission document published on 29 · Ββρ. 1 980 DIRECTORATE FOR. u PATENT & TRADEMARKET (30> Requested from the
17- jun. 1974, 8258/74, CHJun 17-Jun. 1974, 8258/74, CH
(71) HASLER AG BERN, Belpstrasse 25, 5000 Bern, CH.(71) HASLER AG BERN, Belpstrasse 25, 5000 Bern, CH.
(72) Opfinder: Emanuel Haf ner, Schaufe lacker 21, 5055 Wohlen, CH.(72) Inventor: Emanuel Haf ner, Schaufe lacquer 21, 5055 Wohlen, CH.
(74) Fuldmægtig under sagens behandling:(74) Plenipotentiary in the proceedings:
Civilingeniør M.Gregersen.Civil Engineering M.Gregersen.
(54) Fremgangsmåde til opbygning af en konferenceforbindelse mellem flere end to abonnentsteder i et ringsystem.(54) Method of building a conference connection between more than two subscriber locations in a ring system.
Opfindelsen angår en fremgangsmåde til opbygning af en konferenceforbindelse mellem flere end to abonnentsteder i et ringsystem og af den i krav l's indledning angivne art.The invention relates to a method for building a conference connection between more than two subscriber locations in a ring system and of the kind specified in the preamble of claim 1.
Der kendes sådanne ringsystemer, ved hvilke der kan opbygges forbindelser mellem to vilkårlige samtalepartnere til overføring af meddelelser. Til frembringelse af en sådan forbindelse mellem to samtalepartnere lagres vælgeinformationen i et adresse-senderegister hos den kaldende abonnent og cirkulerer ved hjælp af et opkald-telegram i ringen. Den opkaldte opfatter, hvis han er fri, sin egen adresse i telegrammet og skriver derefter opkalderens adresse i sit adresse-modtagelsesregister og/eller i sit adresse-senderegister. Den kaldte abonnent svarer med et fri-telegram, der modtages af opkalderen og udløser et ringetonesignal i dennes telefonapparat. Når den op- 2 14225β kaldte løfter hørerøret, sendes et yderligere telegram til opkalderen og sætter dennes station i samtaletilstand. Dermed er forbindelsesopbygningen afsluttet, og informationsudvekslingen kan begynde.Such ring systems are known in which connections can be established between two arbitrary interlocutors for the transmission of messages. In order to create such a connection between two interlocutors, the select information is stored in an address sender register of the calling subscriber and circulates by means of a call telegram in the ring. The caller perceives, if he is free, his own address in the telegram and then writes the caller's address in his address-receiving register and / or in his address-sending register. The called subscriber responds with a free telegram received by the caller and triggers a ringtone signal in his telephone. When the caller lifts the earpiece, an additional telegram is sent to the caller and puts his station in call mode. Thus, the connection building is completed and the information exchange can begin.
5 På denne måde kan der kun opbygges forbindelser mellem to abonnenter. Da der i ringen ikke findes nogen central formidling, kan der heller ikke indrettes en central strømkreds, der kunne tjene til opbygning af konferenceforbindelser mellem flere end to abonnenter.5 In this way, only connections between two subscribers can be established. Also, since there is no central transmission in the ring, a central circuit could not be established that could serve to build conference connections between more than two subscribers.
1Q Den foreliggende opfindelse tager sigte på at afhjælpe denne mangel og angive en fremgangsmåde, ved hjælp af hvilken der i ringsystemet, uden at der bruges en central formidling, kan opbygges forbindelser mellem flere end to abonnenter.The present invention aims to remedy this defect and to provide a method by which connections between more than two subscribers can be established in the ring system without the use of a central communication.
Opfindelsen tager endvidere sigte på at opbygge forbindel-15 ser mellem flere abonnenter under ligeberettigelse for alle a-bonnentsteder, i den forstand, at enhver abonnent, i hvis station de fornødne strømkredse findes, til enhver tid uafhængigt af de andre abonnenter kan optage nye abonnenter i forbindelsen, og at enhver abonnent til enhver tid selvstændigt kan træde ud 20 af samtalen» uden at han påvirker trafikken mellem de andre abonnenter .The invention further aims to build connections between multiple subscribers with equal rights for all subscribers, in the sense that any subscriber in whose station the necessary circuits exist can, at any time, independently subscribe new subscribers in the connection, and that any subscriber can at any time independently withdraw 20 of the conversation 'without affecting traffic between the other subscribers.
Dette opnås ifølge opfindelsen ved, at man går frem som angivet i krav l's kendetegnende del.This is achieved according to the invention by proceeding as indicated in the characterizing part of claim 1.
Opfindelsen forklares nærmere under henvisning til tegnin-25 gen, på hvilken fig. 1 viser en ledningsring med stationer, af hvilke fire er betegnet med bogstaverne A, B, C, D, fig. 2 et skema for en konferencering, i hvilken fire stationer er sammenkoblede, 30 fig. 3 indhold i sendelagre og i modtagelseslager i de fire sta tioner, efter sammenkobling, fig. 4 et blokdiagram over en af stationerne, fig. 5 en oversigt over signaleringstelegrammer, de funktioner, som udløser dem, og virkningen af telegrammerne, 35 fig. 6 en tabel, der gengiver registerindholdene i de fire statio ner ved opbygning af en konferenceforbindelse, og fig. 7 et blokdiagram for strømkredsene på et abonnentsted til gennemførelse af en konferencesamtale, 142258The invention is further explained with reference to the drawing, in which FIG. 1 shows a wiring ring with stations four of which are indicated by the letters A, B, C, D; FIG. 2 is a diagram of a conference ring in which four stations are interconnected; FIG. Fig. 3 shows contents in transmit storage and in reception storage in the four stations, after interconnection; 4 is a block diagram of one of the stations; FIG. 5 shows an overview of signaling telegrams, the functions that trigger them and the effect of the telegrams; FIG. 6 is a table showing the register contents of the four stations when building a conference connection; and FIG. 7 is a block diagram of the circuitry at a subscriber site for conducting a conference call, 142258
Et eksempel på et sådant ringsystem og tilhørende abonnentsteder er beskrevet i dansk patentansøgning nr. 3642/73, men den foreliggende opfindelse er ikke alene begrænset til systemer med den dér beskrevne art af meddelelsesoverføring. Hver station 5 indeholder et modtageregister R og et senderegister T, i hvilke abonnentadresser (= kaldenumre) står, fra hvilken station der modtages, eller til hvilken der sendes. Ved en enkel forbindelse er begge adresser ens, ved en konferenceforbindelse er de forskel-lige.An example of such a ring system and associated subscriber sites is described in Danish Patent Application No. 3642/73, but the present invention is not limited to systems of the type of message transmission described therein. Each station 5 contains a receiving register R and a transmitting register T, in which subscriber addresses (= nicknames) stand, from which station is received or to which is sent. For a simple connection, both addresses are the same, for a conference connection they are different.
10 Det antages, at der mellem abonnenter A, B, C, D, der er tilsluttet til en ring 1 uden central formidling, skal opbygges en konferencesamtale. Fig. 1 gengiver den faktiske stedlige beliggenhed i koblingsringen 1, medens fig. 2 skematisk viser, hvorledes stationerne kommunikerer med hinanden efter samtaleopbyg-15 ningen. Således modtager stationen A telegrammer fra C og sender til D. B modtager fra D og sender til C o.s.v. Svarende hertil er indholdene af senderegistret T og af modtageregistret R på de enkelte stationer efter forbindelsesopbygning som vist i fig, 3. Stationerne ligger altså i en konferencering, hvis længde i al-20 mindelighed er større end længden af koblingsringen, og som, hvis n abonnenter deltager i konferencesamtalen, ligger mellem 1 og n-1 gange længden af koblingsringen. I fig. 4 er 1 en ringledning, på hvilken der cirkulerer signaler i digital form modsat urviserens retning. 2 er abonnentstationer, der er indskudt i ringled-25 ningen. En af disse stationer, nemlig en telefonabonnentstation, er vist som et blokdiagram. 3 er en overvågningsstation, der er indskudt i ringledningen, og som her er uden betydning.10 It is assumed that a conference call must be built between subscribers A, B, C, D connected to a ring 1 without central communication. FIG. 1 depicts the actual local location in the coupling ring 1, while FIG. 2 shows schematically how the stations communicate with each other after the conversation structure. Thus, the station A receives telegrams from C and sends to D. B receives from D and sends to C, etc. Correspondingly, the contents of the transmitter register T and of the receiver register R at the individual stations after connection construction are shown in Fig. 3. The stations thus lie in a conference ring whose length is generally greater than the length of the coupling ring and if subscribers participate in the conference call, are between 1 and n-1 times the length of the clutch ring. In FIG. 4, 1 is a ring line on which signals are circulated in digital form opposite to the clockwise direction. 2 are subscriber stations interposed in the ring line. One of these stations, namely a telephone subscriber station, is shown as a block diagram. 3 is a monitoring station which is inserted into the ring line and which is of no significance here.
I abonnentstationen betegner la den ankommende og lb den udgående ledning. Den ankommende ledning la er forbundet med en 30 taktgiver 4 og med indgangen til et modtagelager 5. Dette er et skifteregister, i hvilket alle på ledningen ankommende impulser, styret af taktgiveren 4, indlæses, og hvor de videreskiftes i samme takt. Endelig er den ankommende ledning la forbundet med en elektronisk trevejsomkobler 6, der bliver påvirket af en styre-35 kobling 7. Denne omkobler forbinder den udgående ledning lb med den ankommende ledning la i en første stilling a, med udgangen fra et sendelager 8 i en anden stilling b og med udgangen fra et modtagelager 5 i en tredie stilling c. Kapaciteten af modtagelageret 5 og af sendelageret 8 er lige store.In the subscriber station, la denotes the arriving and lb the outgoing line. The arriving line 1a is connected to a clock transmitter 4 and to the input of a receiver memory 5. This is a switching register in which all pulses arriving on the line, controlled by the clock transmitter 4, are loaded and where they are switched at the same rate. Finally, the arriving line 1a is connected to an electronic three-way switch 6 which is actuated by a control coupling 7. This switch connects the outgoing line 1b to the arriving line 1a in a first position a, with the output of a transmitter 8 in a second position b and with the output of a receiving storage 5 in a third position c. The capacity of the receiving storage 5 and of the transmitting storage 8 are equal.
4 1422584 142258
En dekoder 9 dekoder indholdet af modtagelageret 5 og afgiver, når der fastslås visse bitkombinationer, signaler til styrekoblingen 7. Modtagelageret S og sendelageret 8 er endvidere forbnndet med en meldekobling 10, der tjener som mellemled mellem 5 et abonnentapparat 11 og de øvrige koblinger i abonnentstationerne. Denne kobling modtager meldinger fra modtagelageret 5 og omsætter dem til signaler, der kan optages af abonnenten (ringesig-naler, summetoner, taleamplituder). Den modtager endvidere fra a-bonnenten signaler (gaffel-, vælgeskiver- og talesignaler), som 10 den omsætter til meldinger og videregiver til sendelageret 8.A decoder 9 decodes the contents of the receiving memory 5 and, when certain bit combinations are determined, signals to the control coupling 7. The receiving memory S and the transmitting memory 8 are also connected to a message coupling 10 which acts as an intermediary between a subscriber apparatus 11 and the other connections in the subscriber stations. . This coupling receives messages from the receive memory 5 and translates them into signals that can be received by the subscriber (ring signals, dial tones, voice amplitudes). It also receives signals from the a-subscriber (fork, selector dial and voice signals) which it translates into messages and transmits to the transmit storage 8.
Meldingsmodtagelse Og meldingsafgiveIse afhænger af, i hvilken samtaletilstand abonnenten befinder sig; samtaletilstanden er altid lagret i meldingskoblingen og kan ændres ved signaler fra abonnentstationen 11 eller fra modtagelageret 5, Funktio-15 nerne af meldingskoblingen 10 og af styrekoblingen 7 er tidsmæssigt afhængig af hinanden. 22 betegner det allerede ovenfor nævnte sendeadresseregister T, 23 det ligeledes nævnte modtageadres-seregister R og 24 et adresse-tillægsregister A.Message reception and message delivery depend on the call mode of the subscriber; the call state is always stored in the message coupling and can be changed by signals from the subscriber station 11 or from the receive memory 5, the functions of the message coupling 10 and the control coupling 7 are temporally dependent on each other. 22, the previously mentioned sending address register T, 23 also denotes the receiving address register R and 24 an additional address register A.
Det ville være muligt kun at bruge et af de to registre, 20 navnlig til samtaler med kun to abonnenter, men i så fald ville kravene om hemmeligholdelse af samtalerne være vanskelig at opfylde.It would be possible to use only one of the two registers, 20 in particular for conversations with only two subscribers, but in that case the requirements for the confidentiality of the conversations would be difficult to fulfill.
Fig. 5 viser i tabelform funktionerne af en station X, i hvilken betjeningsforløb udløser telegrammer, og en station Y, 25 der modtager disse telegrammer og eventuelt udsender et yderligere telegram for det modtagne telegram. Fremstillingen viser altså ikke forløbene ved en samtaleopbygning mellem stationerne X og Y.FIG. 5 shows, in tabular form, the functions of a station X, in which the operating procedure triggers telegrams, and a station Y, 25 receives these telegrams and optionally sends out an additional telegram for the received telegram. Thus, the production does not show the progress of a conversation structure between stations X and Y.
I den første spalte i fig. 5 er indført det forløb, der udløser telegrammet, i den anden spalte er der i den første linie 3Q indført indholdet af sendeadresseregistret T, af modtageadresse-registret R og af tillægsregistret A foran og i den anden linie efter det udløsende forløb og efter udsendelse af telegrammet.In the first slot of FIG. 5, the process that triggers the telegram is entered, in the second column the contents of the first line 3Q are entered of the sending address register T, of the receiving address register R and of the additional register A before and in the second line after the triggering course and after sending out the telegram.
Den tredie spalte viser betegnelse og indhold af telegrammet, der er sammensat af adressen for afsenderen X, en signalise-35 ringskode og - undtagen i et enkelt tilfælde - af en yderligere adresse.The third column shows the designation and content of the telegram composed of the address of the sender X, a signaling code and - except in a single case - of an additional address.
Den fjerde spalte viser registerindholdene i modtageren Y før og efter modtagelse af telegrammet, og den femte spalte viser 5 142258 det telegram, der derefter udsendes fra stationen Y. Ved nogle telegramarter stemmer adressen i telegrammet overens med, modtageadressen, ved andre ikke.The fourth column shows the register contents of the receiver Y before and after receiving the telegram, and the fifth column shows the telegram which is then sent from the station Y. In some telegram types, the address in the telegram corresponds to, the recipient address, others not.
Z betegner en yderligere adresse. En tom kasse antyder, at 5 kassens indhold er uden betydning for forløbet.Z denotes an additional address. An empty box indicates that the contents of the box are irrelevant to the process.
Hver linie forklarer en slags af telegrammerne: Linie 1: Opkald X til Y, telegram X 1 Y. Ved valg af et kaldenummer af den opkaldende abonnent bliver det valgte kaldenummer Y overført til senderegistret fra X, kort betegnet som Τχ. Der udsendes et kal-10 detelegram X 1 Y. I modtageren Y bliver adressen på den opkaldende, hvis modtageren er fri (Ry = 0, linie 1 foroven), indskrevet i modtage- og senderegistret, og der tilbagesendes et fritelegram Y 2 X. Er modtageren Y ikke fri (Ry = Z, linie 1 forneden), sker der intet.Each line explains one of the telegrams: Line 1: Call X to Y, Telegram X 1 Y. When selecting a caller number of the calling subscriber, the selected caller Y is transferred to the sending register from X, briefly designated as Τχ. A call divider X 1 Y is sent out. In the receiver Y, the address of the caller, if the recipient is free (Ry = 0, line 1 above), is entered in the receive and send register and a freight log Y 2 X is returned. If the receiver Y is not free (Ry = Z, line 1 below), nothing happens.
15 Linie 2: Modtager en opkaldende station Y et fritelegram, så lader meldingskoblingen en fritone lyde i den opkaldendes hørerør. Modtager stationen intet svar, lyder der en optagettone.15 Line 2: Receives a calling station Y a freight telegram, then the message coupler sounds a free tone in the caller's hearing tube. If the station receives no response, a busy tone sounds.
Linie 3: Opbygning X til Y, telegram X3Y, der udløses ved afløftning. Abonnent X befaler dermed abonnenten Y at samle adres-20 sen X i modtageregistret, og hvis den i forvejen dér opsamlede a-dresse ikke er lig med X, selv at udsende et opbygningstelegram Y3Z, idet Z er den i senderegistret fra Y opsamlede adresse. Ved opbygning af en toerforbindelse er Z = X. I dette tilfælde bevirker telegrammet på den opkaldende station afslutningen af fritonen.Line 3: Buildings X to Y, telegram X3Y, triggered by lifting. Subscriber X thus commands subscriber Y to collect the address X in the receiving register, and if the a-suits already collected there are not equal to X, even to send a build-up telegram Y3Z, Z being the address collected in the send register from Y. When building a dry connection, Z = X. In this case, the telegram on the calling station causes the end of the fryer.
25 Linie 4: Fastholden, telegram X8 er udløst af en tast *.25 Line 4: Hold, telegram X8 is triggered by a key *.
Påvirkningen af denne tast bevirker i senderen en overføring af senderegisterindholdet til hjælperegistret A og en udsletning af modtageregistret. Desuden udsendes et signaliseringstelegram X8, der betyder opfordring til abonnent Y, i hvis modtageregister a-30 dressen X er opsamlet, til at udslette dette register og derefter selv videresende et holdetelegram Y8 (linie 4 forneden). Er Ry f X, sker der intet (linie 4 foroven).The actuation of this key causes the transmitter to transmit the transmit register contents to the auxiliary register A and to delete the receiver register. In addition, a signaling telegram X8, which means call to subscriber Y, in whose receiving register the a-30 suit X is collected, is sent to obliterate this register and then even forward a holding telegram Y8 (line 4 below). If Ry f X, nothing happens (line 4 above).
Linie 5: Overført, telegram X13Z udløst ved hjælp af en tast ΦΦ . Denne tast tjener til initialisering af en flerdobbelt 35 forbindelse. Dens påvirkning på en station medfører, at der udsendes et signaliseringstelegram, med adresse fra.tillægsregistret, der derpå indstilles på 0. Telegrammet bliver modtaget af den station, i hvis modtageregister adressen på sendestationerne står, og 6 142258 adressen fra tillægsregistret Αχ i senderen X bliver indskrevet i senderegistret Ty ved modtageren Y. Endvidere sender modtagestationen et opbygningstelegram Y3Z til den abonnent, hvis adresse står i modtagerstationens senderegister.Line 5: Transmitted, telegram X13Z triggered by a key ΦΦ. This key serves to initialize a multiple connection. Its effect on a station causes a signaling telegram to be transmitted, with address from the supplementary register, which is then set to 0. The telegram is received by the station whose receiving register the address of the broadcasting stations is located and 6 the address from the supplementary register till in the transmitter X In addition, the receiving station sends a build-up telegram Y3Z to the subscriber whose address is in the receiving station's transmitter register.
5 Linie 6: Slut for forbindelse, telegram X7Z er udløst ved pålægning af hørerøret. Ved pålægningen af hørerøret bliver modtageadresseregistret Ry stillet på 0, og der udsendes et telegram X7Z, hvori Z er den adresse, derer opsamlet i sendeadresseregistret Ty. Dette telegram modtages fra den station, i hvis sendere-1Q .gister adressen X står, altså ved en ringforbindelse i den station, der er den forangående i ringen. Adressen X bliver erstattet af a-dressen Z, ag der udsendes et opbygningstelegram Y3Z.5 Line 6: End of connection, telegram X7Z is triggered when the hearing tube is placed. Upon placing the hearing tube, the receiving address register Ry is set to 0 and a telegram X7Z is sent, wherein Z is the address which is collected in the sending address register Ty. This telegram is received from the station at which the transmitter 1Q addresses the address X, i.e. by a ring connection in the station which is the leading one in the ring. The address X is replaced by the a-dress Z, and a structure telegram Y3Z is sent out.
Ved hjælp af dette katalog for signaliseringsbefalinger kan der nu opbygges vilkårlige flerdobbelte samtaler, som det skal vi-15 ses med et eksempel. Herved antages det for enkeltheds skyld, at de opkaldte abonnenter altid er fri.By means of this directory for signaling commands, arbitrary multiple conversations can now be built, as will be shown by example. For this reason, it is assumed for simplicity that the subscribers called are always free.
Opbygningen af forbindelsen er anskueliggjort i fig. 6, hyori det udløsende forløb er gengivet i den anden spalte, telegramafsenderen findes i den tredie spalte, telegramindholdet i den 20 fjerde spalte, telegrammodtageren i den femte spalte, og de yderligere spalter gengiver indholdene i registrene, nemlig i sendeadres-seregistrene T, modtageadresseregistrene R og tillægsregistrene A.The structure of the connection is illustrated in FIG. 6, the triggering sequence is reproduced in the second column, the telegram sender is in the third column, the telegram content in the fourth column, the telegram receiver in the fifth column, and the additional columns reproduce the contents of the registers, namely in the sending address registers T, the receiving address registers R and the supplementary records A.
Første skridt: B kalder A. Efter afslutning af valget står den valgte adresse A i sendeadresseregistret Tg. Der udsendes et 25 kaldetelegram BIA, der modtages af A og bevirker en indskrivning af adressen B i sendeadresseregistret R^ og modtageadresseregistret T^. A svarer med et fritelegram AeB, der modtages af B og udløser en fritone.First step: B calls A. At the end of the election, the selected address A is in the sending address register Tg. A 25 telegram BIA is received which is received by A and enters an entry of the address B in the send address register R ^ and the receive address register T ^. A corresponds to a freegram AeB received by B and triggers a free tone.
Andet skridt: Så snart A afløfter, går der et opbygningste- 30 legram A3B fra A til B og bevirker en indskrivning af adressen A i Rg. B sender derefter et opbygningstelegram B3A, der ikke har nogen virkning ved A, da adressen B allerede står i modtageadresseregistret hér. Dermed er der opbygget en forbindelse mellem A og B.Second step: As soon as A picks up, a structure test frame A3B goes from A to B and inscribes the address A in Rg. B then sends a build-up telegram B3A which has no effect at A, since address B is already in the receiving address register here. Thus, a connection is established between A and B.
Tredie til femte skridt: B trækker C ind i samtalen.Third to Fifth Steps: B pulls C into the conversation.
35 Tredie skridt: B trykker på *-tasten, hvad der bevirker en overføring af adressen fra sendeadresseregistret til hjælperegistret Og samtidig stiller modtageadresseregistret på nul. Der udsendes et telegram B8, der modtages af A, da adressen B her står i mod- 7 142258 tageadresseregistret. Denne adresse stilles på nul. A udsender et telegram A8, der ikke modtages af nogen, da adressen A ikke mere står i noget adressemodtageregister.35 Third steps: B presses the * key, which causes a transfer of the address from the send address register to the auxiliary register And at the same time sets the receiving address register to zero. A telegram B8 is received which is received by A, as the address B here is in the receiving address register 7. This address is set to zero. A sends out a telegram A8 that is not received by anyone, as the address A no longer appears in any recipient register.
Fjerde skridt: På samme måde som A i skridtene 1 Og 2 frem- 5 stiller B nu en forbindelse med C. Herved og i det følgende er, fri-tonetelegraramet Z2B o.s.v. ikke indført, da det er uvæsentligt for forståelsen.Fourth step: In the same way as A in steps 1 and 2, B now makes a connection with C. Hereby and in the following is, the free-tone telegram frame Z2B, etc. not introduced as it is immaterial to understanding.
Femte skridt: Efter opbygning af forbindelsen med C tryk ker B på tasten =, et telegram B13A udsendes og modtages af C, da 10 B står i modtageregistret her. I sendeadresseregistret fra C indskrives den adresse A, der er indeholdt i telegrammet. C udsender et telegram C3A, der modtages af A og bevirker en indskrivning af C i Ra. A på sin side udsender et telegram A3B, der modtages og indskriver adressen A i Rg. B sender til slut endnu et telegram 15 B3C, der ikke mere har nogen virkning, da B allerede står i R^.,Fifth step: After establishing the connection with C, B presses the key =, a telegram B13A is sent and received by C, as 10 B is in the recipient register here. In the sending address register from C, the address A contained in the telegram is entered. C sends out a telegram C3A which is received by A and causes an inscription of C in Ra. A, in turn, sends out a telegram A3B which is received and inscribes the address A in Rg. B finally sends another telegram 15 B3C which has no effect anymore, since B is already in R ^.,
Nu er der opbygget en konferenceforbindelse, i hvilken A modtager fra C og sender til B. B modtager fra A og sender til C.Now a conference connection has been built in which A receives from C and sends to B. B receives from A and sends to C.
C modtager fra B og sender til A.C receives from B and sends to A.
Hver af de tre abonnenter kan trække yderligere abonnenter 20 med ind i samtalen, når hans apparat er indrettet med et hjælpe-adresseregister og de nødvendige koblinger til udsendelse af telegrammer med kodenumrene 8 og 13.Each of the three subscribers may draw additional subscribers 20 into the call when his apparatus is provided with an auxiliary address register and the necessary links for transmitting telegrams with the code numbers 8 and 13.
I skridtene 6 til 8 trækker A en station D ind i samtalen. Forløbet svarer til skridtene 3-5. Derved bliver opbygningen af en 25 konferencering som vist i fig. 2 fuldført.In steps 6 through 8, A pulls a station D into the conversation. The process corresponds to steps 3-5. Thereby, the structure of a conference ring as shown in FIG. 2 completed.
Niende skridt: Når A lægger hørerøret på, stilles R^ på nul og der udsendes et telegram A7D. Dette telegram modtages af stationen C, i hvilken sendeadresseregistret A står. Dette erstattes af adressen D, som er indeholdt i telegrammet. C udsender der-30 efter et telegram C3D, der modtages af D og indskriver C i modtage-adresseregistret. Dermed er A trådt ud af ringen.Step 9: When A hangs up the hearing tube, R ^ is set to zero and a telegram A7D is emitted. This telegram is received by the station C, in which the sending address register A stands. This is replaced by the address D contained in the telegram. C then emits 30 after a telegram C3D received by D and inscribes C in the receive address register. Thus, A has stepped out of the ring.
Tiende skridt: Tilsvarende forløb opnås, når også C lægger hørerøret på; derefter forbliver endnu kun B og D i samtale.Tenth step: Similar course is obtained when C also hangs the hearing tube; then only B and D remain in conversation.
Til informationsoverføring under samtalen gives der forskel-35 lige muligheder, af hvilke nedenfor én forklares i tilknytning til fig. 7. Denne figur viser nogle koblingskredse i en station, hvilke kredse er påkrævet til overføring af en konferencesamtalé ved fremgangsmåden ifølge opfindelsen. Denne fremgangsmåde beror på, atVarious information is provided for information transfer during the conversation, of which one is explained below in connection with FIG. 7. This figure shows some switching circuits in a station which are required to transmit a conference call by the method of the invention. This approach is due to the fact that
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH823874A CH575692A5 (en) | 1974-06-17 | 1974-06-17 | |
| CH823874 | 1974-06-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK249075A DK249075A (en) | 1975-12-18 |
| DK142258B true DK142258B (en) | 1980-09-29 |
| DK142258C DK142258C (en) | 1981-02-23 |
Family
ID=4337263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK249075AA DK142258B (en) | 1974-06-17 | 1975-06-04 | Method of building a conference connection between more than two subscriber locations in a ring system. |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS597255B2 (en) |
| AT (1) | AT345351B (en) |
| BE (1) | BE830333A (en) |
| CA (1) | CA1026478A (en) |
| CH (1) | CH575692A5 (en) |
| DE (1) | DE2523906A1 (en) |
| DK (1) | DK142258B (en) |
| FR (1) | FR2275086A1 (en) |
| GB (1) | GB1490260A (en) |
| IL (1) | IL47446A (en) |
| IT (1) | IT1036322B (en) |
| NL (1) | NL7507183A (en) |
| NO (1) | NO141914C (en) |
| SE (1) | SE410545B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57111166A (en) * | 1980-12-26 | 1982-07-10 | Fujitsu Ltd | Add-on connection system |
| GB2132449A (en) * | 1982-12-09 | 1984-07-04 | Standard Telephones Cables Ltd | Decentralised PABX |
| US4544804A (en) * | 1983-01-24 | 1985-10-01 | At&T Bell Laboratories | Conference control transfer arrangement |
| DE3501834A1 (en) * | 1985-01-21 | 1986-07-24 | Siemens AG, 1000 Berlin und 8000 München | Speech facility for a communications system with digital four-wire bus channel |
| SE449152B (en) * | 1986-03-19 | 1987-04-06 | Paul Gosta Wilhelm Rosen | COMMUNICATION ESTABLISHMENT INCLUDING A MULTIPLE UNITS WHICH CAN MAINTAIN A CONFERENCE CONNECTION |
| DE10062342A1 (en) * | 2000-12-14 | 2002-07-11 | Eads Defence & Security Ntwk | Method and device for implementing voice conferences |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH550521A (en) * | 1972-07-04 | 1974-06-14 | Hasler Ag | PROCEDURE FOR MESSAGE TRANSFER BETWEEN PARTICIPANTS. |
-
1974
- 1974-06-17 CH CH823874A patent/CH575692A5/xx not_active IP Right Cessation
-
1975
- 1975-05-30 DE DE19752523906 patent/DE2523906A1/en not_active Withdrawn
- 1975-05-30 AT AT413775A patent/AT345351B/en not_active IP Right Cessation
- 1975-06-03 GB GB23907/75A patent/GB1490260A/en not_active Expired
- 1975-06-04 DK DK249075AA patent/DK142258B/en not_active IP Right Cessation
- 1975-06-10 CA CA229,155A patent/CA1026478A/en not_active Expired
- 1975-06-10 IL IL47446A patent/IL47446A/en unknown
- 1975-06-12 FR FR7518438A patent/FR2275086A1/en active Granted
- 1975-06-13 JP JP50071001A patent/JPS597255B2/en not_active Expired
- 1975-06-16 SE SE7506860A patent/SE410545B/en unknown
- 1975-06-16 NO NO752123A patent/NO141914C/en unknown
- 1975-06-17 NL NL7507183A patent/NL7507183A/en not_active Application Discontinuation
- 1975-06-17 IT IT68563/75A patent/IT1036322B/en active
- 1975-06-17 BE BE157410A patent/BE830333A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1490260A (en) | 1977-10-26 |
| DK142258C (en) | 1981-02-23 |
| DE2523906A1 (en) | 1976-01-08 |
| NO752123L (en) | 1975-12-18 |
| AT345351B (en) | 1978-09-11 |
| JPS5111505A (en) | 1976-01-29 |
| SE410545B (en) | 1979-10-15 |
| NO141914C (en) | 1980-05-28 |
| IL47446A0 (en) | 1975-08-31 |
| NL7507183A (en) | 1975-12-19 |
| FR2275086B1 (en) | 1982-04-30 |
| CA1026478A (en) | 1978-02-14 |
| IT1036322B (en) | 1979-10-30 |
| IL47446A (en) | 1977-12-30 |
| DK249075A (en) | 1975-12-18 |
| ATA413775A (en) | 1978-01-15 |
| SE7506860L (en) | 1975-12-18 |
| BE830333A (en) | 1975-12-17 |
| JPS597255B2 (en) | 1984-02-17 |
| FR2275086A1 (en) | 1976-01-09 |
| AU8206375A (en) | 1976-12-16 |
| NO141914B (en) | 1980-02-18 |
| CH575692A5 (en) | 1976-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |