FR2431803A1 - Transmetteur telephonique a programme - Google Patents
Transmetteur telephonique a programmeInfo
- Publication number
- FR2431803A1 FR2431803A1 FR7821555A FR7821555A FR2431803A1 FR 2431803 A1 FR2431803 A1 FR 2431803A1 FR 7821555 A FR7821555 A FR 7821555A FR 7821555 A FR7821555 A FR 7821555A FR 2431803 A1 FR2431803 A1 FR 2431803A1
- Authority
- FR
- France
- Prior art keywords
- relay
- microprocessor
- memory
- transmission system
- read input
- 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.)
- Pending
Links
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
- H04M1/2749—Automatic dialling or redialling systems, e.g. on off-hook or redial on busy
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
- Selective Calling Equipment (AREA)
Abstract
Transmetteur d'appels et de messages codés téléphoniques préalablement programmés. Ce transmetteur comprend une mémoire 1 lue par un micro-processeur 2 qui envoie l'appel et le message codé sur la ligne téléphonique par l'intermédiaire d'un transformateur 5, la tonalité et le décroché du central de réception déclenchant le microprocesseur par l'intermédiaire d'un amplificateur 7, un relais 6 dont le contact 6a est branché sur la ligne, étant commandé par le microprocesseur.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7821555A FR2431803A1 (fr) | 1978-07-20 | 1978-07-20 | Transmetteur telephonique a programme |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7821555A FR2431803A1 (fr) | 1978-07-20 | 1978-07-20 | Transmetteur telephonique a programme |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2431803A1 true FR2431803A1 (fr) | 1980-02-15 |
Family
ID=9210964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7821555A Pending FR2431803A1 (fr) | 1978-07-20 | 1978-07-20 | Transmetteur telephonique a programme |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2431803A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2434527A1 (fr) * | 1978-08-23 | 1980-03-21 | Secom Sa | Transmetteur telephonique a bande |
EP0037573A1 (fr) * | 1980-04-07 | 1981-10-14 | NEWART ELECTRONIC SCIENCES, Inc. | Appareil pour la transmission automatique de messages téléphoniques |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868479A (en) * | 1972-10-30 | 1975-02-25 | Delta Products Inc | Telephonic alarm reporting apparatus |
US4086434A (en) * | 1976-09-07 | 1978-04-25 | Leo P. Christiansen | Remote condition reporting system |
FR2371739A1 (fr) * | 1976-11-23 | 1978-06-16 | Fortchantre Claude | Dispositif transmetteur d'alerte sur ligne telephonique |
-
1978
- 1978-07-20 FR FR7821555A patent/FR2431803A1/fr active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868479A (en) * | 1972-10-30 | 1975-02-25 | Delta Products Inc | Telephonic alarm reporting apparatus |
US4086434A (en) * | 1976-09-07 | 1978-04-25 | Leo P. Christiansen | Remote condition reporting system |
FR2371739A1 (fr) * | 1976-11-23 | 1978-06-16 | Fortchantre Claude | Dispositif transmetteur d'alerte sur ligne telephonique |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2434527A1 (fr) * | 1978-08-23 | 1980-03-21 | Secom Sa | Transmetteur telephonique a bande |
EP0037573A1 (fr) * | 1980-04-07 | 1981-10-14 | NEWART ELECTRONIC SCIENCES, Inc. | Appareil pour la transmission automatique de messages téléphoniques |
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