FR2431803A1 - Programmed telephone message transmission system - has transformer coils respectively coupled to relay and microprocessor having memory at read input - Google Patents

Programmed telephone message transmission system - has transformer coils respectively coupled to relay and microprocessor having memory at read input

Info

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
Application number
FR7821555A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SECOM SA
Original Assignee
SECOM SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SECOM SA filed Critical SECOM SA
Priority to FR7821555A priority Critical patent/FR2431803A1/en
Publication of FR2431803A1 publication Critical patent/FR2431803A1/en
Pending legal-status Critical Current

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

The system for transmitting on command previously programmed calls or coded information comprises a transformer (5) one coil of which is connected to the telephone line through a contact (6a) of a relay (6). The other transformer coil is coupled to an output of a microprocessor (2) through an amplifier (4) and a frequency generator (3) and to a command input through a further amplifier (7). A memory (1) is coupled to a read input at the microprocessor (2) which also controls the relay (6). A signal such as an alarm signal received by the microprocessor (2) along input line (2a) causes the latter to activate the relay (6) and connect with a previously selected telephone station to transmit the information previously programmed into the memory (1). The frequency generator (3) preferably acts by pulse modulation of the coded onformation.
FR7821555A 1978-07-20 1978-07-20 Programmed telephone message transmission system - has transformer coils respectively coupled to relay and microprocessor having memory at read input Pending FR2431803A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7821555A FR2431803A1 (en) 1978-07-20 1978-07-20 Programmed telephone message transmission system - has transformer coils respectively coupled to relay and microprocessor having memory at read input

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7821555A FR2431803A1 (en) 1978-07-20 1978-07-20 Programmed telephone message transmission system - has transformer coils respectively coupled to relay and microprocessor having memory at read input

Publications (1)

Publication Number Publication Date
FR2431803A1 true FR2431803A1 (en) 1980-02-15

Family

ID=9210964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821555A Pending FR2431803A1 (en) 1978-07-20 1978-07-20 Programmed telephone message transmission system - has transformer coils respectively coupled to relay and microprocessor having memory at read input

Country Status (1)

Country Link
FR (1) FR2431803A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434527A1 (en) * 1978-08-23 1980-03-21 Secom Sa Telephone message transmitter using twin track magnetic tape - automatically dials prerecorded message
EP0037573A1 (en) * 1980-04-07 1981-10-14 NEWART ELECTRONIC SCIENCES, Inc. Automatic telephonic message transmitting apparatus

Citations (3)

* Cited by examiner, † Cited by third party
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 (en) * 1976-11-23 1978-06-16 Fortchantre Claude Alarm system automatically alerting given telephone subscriber - with call number supplied to line upon detector actuation

Patent Citations (3)

* Cited by examiner, † Cited by third party
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 (en) * 1976-11-23 1978-06-16 Fortchantre Claude Alarm system automatically alerting given telephone subscriber - with call number supplied to line upon detector actuation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434527A1 (en) * 1978-08-23 1980-03-21 Secom Sa Telephone message transmitter using twin track magnetic tape - automatically dials prerecorded message
EP0037573A1 (en) * 1980-04-07 1981-10-14 NEWART ELECTRONIC SCIENCES, Inc. Automatic telephonic message transmitting apparatus

Similar Documents

Publication Publication Date Title
AU5399386A (en) Identification system
MY109146A (en) Three wire low power transmitter water
EE03326B1 (en) Amplifier control system
FR2518335B1 (en)
FR2431803A1 (en) Programmed telephone message transmission system - has transformer coils respectively coupled to relay and microprocessor having memory at read input
SE347378B (en)
JPS5534532A (en) Communication system
JPS54157020A (en) Carrier transmitter
GB879606A (en) Improvements relating to inductive loop communication systems
IT1226837B (en) Transmitting measurements through metal pipe
JPS6427331A (en) Ultrasonic wave transmitter-receiver utilizing piping
JPS5552662A (en) Automatic message-type automatic answering telephone system
JPS5685974A (en) Facsimile apparatus
EP0091619A3 (en) Remote control device
DE2965457D1 (en) Method of and apparatus for transmitting information about flow of fault current in a faulty section of an electric power transmission system
JPS5789357A (en) Control method for power on and off
KR970006909B1 (en) Circuit of data communication
JPS54150012A (en) Signal transmission system
JPS56132829A (en) Automatic repeating system by sound recording equipment
JPS57112161A (en) Telephone set
JPS564963A (en) Automatic dial signal transmission system
JPS53131706A (en) Automatic telephone exchange system
JPS5755642A (en) Branch circuit communication system
JPS57208754A (en) Automatic answering telephone set
JPS55138994A (en) Remote control system