FR2516327A1 - Electronically controlled dialling system for telephone - includes memory storing binary words indicating duration of dialling pulse - Google Patents
Electronically controlled dialling system for telephone - includes memory storing binary words indicating duration of dialling pulse Download PDFInfo
- Publication number
- FR2516327A1 FR2516327A1 FR8120820A FR8120820A FR2516327A1 FR 2516327 A1 FR2516327 A1 FR 2516327A1 FR 8120820 A FR8120820 A FR 8120820A FR 8120820 A FR8120820 A FR 8120820A FR 2516327 A1 FR2516327 A1 FR 2516327A1
- Authority
- FR
- France
- Prior art keywords
- dialling
- words
- memory
- circuit
- telephone
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
- H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
- H04M1/27495—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips implemented by means of discrete electronic components, i.e. neither programmable nor microprocessor-controlled
Abstract
Description
DiSPOSITIF DE NUMEROTATION PAR RUPTURE DE BOUCLE POUR APPAREILLAGE
TELEPHONIQUE"
La présente invention concerne un dispositif de numérotation par rupture de boucle pour appareillage téléphonique, dispositif constitué à partir d'un circuit-interrupteur inséré dans ladite boucle, muni d'une commande pour le mettre en position Qu- verte ou en position fermée en fonction d'un numéro à composer parmi "n".LOOP BREAKDOWN DIALING DEVICE FOR APPARATUS
TELEPHONE"
The present invention relates to a device for dialing by breaking a loop for telephone equipment, a device formed from a circuit-breaker inserted in said loop, provided with a control for placing it in the green position or in the closed position in function of a number to dial from "n".
La numérotation par rupture de boucle consiste, on le rappelle, à interrompre et à refermer Le circuit de boucle suivant des impulsions calibrées dans le temps ; par exemple, le chiffre "2" est formé par une ouverture de 66 ms de la boucle, puis une fermeture de 33 ms, puis une ouverture à nouveau de 66 ms ; ces chiffres, avec un écart tolérable de 10%, sont valables pour la France et doivent être corrigés pour d'autres pays. The numbering by loop break consists, as we recall, of interrupting and closing the loop circuit according to pulses calibrated in time; for example, the digit "2" is formed by an opening of 66 ms of the loop, then a closing of 33 ms, then an opening again of 66 ms; these figures, with a tolerable deviation of 10%, are valid for France and must be corrected for other countries.
Dans le brevet américain nO 4 011 414, on décrit un poste d'abonné téléphonique dans lequel les numéros à composer sont effectués par l'intermédiaire d'un microprocesseur. Les impulsions de rupture de boucle sont déterminées par un programme enregistré dans une mémoire morte contenue dans le boîtier du microprocesseur. In US Patent No. 4,011,414, a telephone subscriber station is described in which the numbers to be dialed are made via a microprocessor. The loop break pulses are determined by a program stored in a read-only memory contained in the microprocessor case.
Un inconvénient de ce poste est qu'il est difficile de modifier la durée des impulsions lorsqu'on veut utiliser le poste pour un autre pays que celui ou il a été conçu. A disadvantage of this station is that it is difficult to modify the duration of the impulses when one wants to use the station for another country than that where it was designed.
La présente invention propose un dispositif de numérotation qui ne présente pas cet inconvénient et qui allège la charge de programmation si le dispositif est appelé à coopérer avec un système à programme enregistré. The present invention provides a numbering device which does not have this drawback and which alleviates the programming load if the device is called upon to cooperate with a recorded program system.
Pour cela, un dispositif du genre mentionné dans le préambule est remarquable en ce que pour la commande de ce circuitinterrupteur, il comporte un agencement de mémoire qui est organisé en "n" mots affectés chacun à un numéro et composés de "p" éléments binaires et qui est prévu pour fournir sous forme série à ladite commande un de ces mots, chaque élément binaire de ces mots correspondant à l'une des positions du circuit-interrupteur. For this, a device of the kind mentioned in the preamble is remarkable in that for the control of this switch circuit, it includes a memory arrangement which is organized in "n" words each assigned to a number and composed of "p" binary elements and which is designed to supply one of these words in series form to said command, each binary element of these words corresponding to one of the positions of the circuit-interrupter.
La description suivante faite en regard des dessins annexés, le tout donné à titre d'exemple non limitatif, fera bien comprendre comment l'invention peut être réalisée. The following description given with reference to the appended drawings, all given by way of nonlimiting example, will make it clear how the invention can be implemented.
La figure 1 représente un dispositif de numérotation conforme à l'invention. Figure 1 shows a numbering device according to the invention.
La figure 2, un diagramme temps destiné à expliquer le fonctionnement du dispositif de l'invention montré à la figure 1. FIG. 2, a time diagram intended to explain the operation of the device of the invention shown in FIG. 1.
Le circui-t-boucle est formé d'une ligne d'abonné 1 et d'un circuit de transmission 2 un circuit-interrupteur 3 est constitué à partir d'un contact de relais dont l'enroulement de commande porte la référence 5. On admettra, dans ce qui suit, que lorsque l'enroulement est soumis à une tension le contact 3 est fermé. Le numéro à composer, par exemple, un des chiffres O à 9, est appliqué sous forme binaire à une borne 8. The circuit-loop is formed of a subscriber line 1 and a transmission circuit 2 a circuit-interrupter 3 is formed from a relay contact whose control winding bears the reference 5. It will be assumed, in the following, that when the winding is subjected to a voltage the contact 3 is closed. The number to dial, for example, one of the digits O to 9, is applied in binary form to a terminal 8.
Conformément à l'invention, pour commander le circuitinterrupteur (5-3), le dispositif comporte un agencement de mémoire 10 qui est organisé en dix mots affectés, chacun, à un des dix numéros O à 9 précités et composés, dans ce exemple, de 256 éléments binaires et qui est prévu pour fournir, sous forme série, à l'enroulement de commande un de ces mots, chaque élément binaire de ces mots correspondant à l'une des positions du circuitinterrupteur ; dans cet exemple, la valeur "1" de l'élément binaire correspond à une excitation du relais, le contact 3 étant alors fermé, la valeur "O" correspondant au repos de ce dernier. According to the invention, to control the switch circuit (5-3), the device comprises a memory arrangement 10 which is organized into ten words assigned, each, to one of the ten numbers O to 9 mentioned above and dialed, in this example, 256 binary elements and which is designed to supply, in series form, to the control winding one of these words, each binary element of these words corresponding to one of the positions of the switch circuit; in this example, the value "1" of the binary element corresponds to an excitation of the relay, the contact 3 then being closed, the value "O" corresponding to the rest of the latter.
L'agencement de mémoire 10 est constitué à partir d'une mémoire morte 20 munie d'une entrée pour adressage 21 connectée aux sorties d'un compteur 25 comptant de O à 255. Les signaux qui font progresser le contenu de ce compteur sont élaborés par un générateur de signaux périodiques portant, sur la figure 1, la référence 27. Cette mémoire est organisée en 256 mots de 10 éléments binaires ; les éléments binaires de ces différents mots apparaissent sur des fils FO, F1, ... " F9 qui sont connectés aux entrées d'un multiplexeur de signaux numériques 30. La commande de ce multiplexeur 30 est connectée à la borne 8, de sorte que le numéro à La borne 8 détermine la relation entre l'enroulement 5 et l'un des fils FO à F9. The memory arrangement 10 is constituted from a read only memory 20 provided with an input for addressing 21 connected to the outputs of a counter 25 counting from 0 to 255. The signals which advance the content of this counter are developed by a generator of periodic signals bearing, in FIG. 1, the reference 27. This memory is organized into 256 words of 10 binary elements; the binary elements of these different words appear on wires FO, F1, ... "F9 which are connected to the inputs of a digital signal multiplexer 30. The control of this multiplexer 30 is connected to terminal 8, so that the number at Terminal 8 determines the relationship between winding 5 and one of the wires FO to F9.
Lorsque le compteur 25 progresse, différents éléments binaires vont se succéder sur les fils FO à F9. Ceci est représenté à la figure 2 pour les fils FO à F3. Ainsi, sur le fil FO, la succession des éléments binaires va "dessiner" les 10 impul- sions IO à I9 de numérotation du chiffre "0", tandis que celle du fil 1 va dessiner l'impulsion I'1 du chiffre "1", et ainsi de suite. When the counter 25 progresses, different binary elements will succeed one another on the wires FO to F9. This is shown in Figure 2 for the wires FO to F3. Thus, on the wire FO, the succession of the binary elements will "draw" the 10 pulses IO to I9 of numbering of the digit "0", while that of the wire 1 will draw the pulse I'1 of the digit "1 ", And so on.
Dans l'exemple considéré, les codes d'adresses progressent au rythme de un toutes les 4 millisecondes, alors que
La numérotation française exige des impulsions de 33 millisecondes.In the example considered, the address codes progress at the rate of one every 4 milliseconds, while
French numbering requires pulses of 33 milliseconds.
C'est dire qu'il faut huit adresses consécutives pour créer une impulsion de numérotation. On voit bien, donc, que l'invention permet, en modifiant la programmation de cette mémoire 20, de changer la durée de ces impulsions en consacrant plus ou moins d'adresses aux impulsions. Ainsi, un tel dispositif permet de s'adapter à différentes normes d'autres pays que la France. This means that eight consecutive addresses are required to create a dialing pulse. It is therefore clear that the invention makes it possible, by modifying the programming of this memory 20, to change the duration of these pulses by devoting more or less addresses to the pulses. Thus, such a device makes it possible to adapt to different standards in other countries than France.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8120820A FR2516327A1 (en) | 1981-11-06 | 1981-11-06 | Electronically controlled dialling system for telephone - includes memory storing binary words indicating duration of dialling pulse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8120820A FR2516327A1 (en) | 1981-11-06 | 1981-11-06 | Electronically controlled dialling system for telephone - includes memory storing binary words indicating duration of dialling pulse |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2516327A1 true FR2516327A1 (en) | 1983-05-13 |
FR2516327B1 FR2516327B1 (en) | 1983-12-30 |
Family
ID=9263758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8120820A Granted FR2516327A1 (en) | 1981-11-06 | 1981-11-06 | Electronically controlled dialling system for telephone - includes memory storing binary words indicating duration of dialling pulse |
Country Status (1)
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FR (1) | FR2516327A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4011414A (en) * | 1975-04-04 | 1977-03-08 | Texas Instruments Incorporated | Automatic dial system for a subscriber telephone |
FR2422298A1 (en) * | 1977-12-26 | 1979-11-02 | Lachenaud Pierre | Automatic telephone number store and dialling circuit - stores numbers permanently or temporarily and has keyboard for inputting numbers and control functions |
FR2437120A1 (en) * | 1978-09-21 | 1980-04-18 | Carso Electronic Instr Co | TELEPHONE APPARATUS HAVING ELECTRONIC DEVICE FOR AUTOMATIC SEARCHING AND CALLING OF STORED NUMBERS |
-
1981
- 1981-11-06 FR FR8120820A patent/FR2516327A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4011414A (en) * | 1975-04-04 | 1977-03-08 | Texas Instruments Incorporated | Automatic dial system for a subscriber telephone |
FR2422298A1 (en) * | 1977-12-26 | 1979-11-02 | Lachenaud Pierre | Automatic telephone number store and dialling circuit - stores numbers permanently or temporarily and has keyboard for inputting numbers and control functions |
FR2437120A1 (en) * | 1978-09-21 | 1980-04-18 | Carso Electronic Instr Co | TELEPHONE APPARATUS HAVING ELECTRONIC DEVICE FOR AUTOMATIC SEARCHING AND CALLING OF STORED NUMBERS |
Also Published As
Publication number | Publication date |
---|---|
FR2516327B1 (en) | 1983-12-30 |
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