JPS57131159A - Pulse generator by telephone bell - Google Patents

Pulse generator by telephone bell

Info

Publication number
JPS57131159A
JPS57131159A JP1579981A JP1579981A JPS57131159A JP S57131159 A JPS57131159 A JP S57131159A JP 1579981 A JP1579981 A JP 1579981A JP 1579981 A JP1579981 A JP 1579981A JP S57131159 A JPS57131159 A JP S57131159A
Authority
JP
Japan
Prior art keywords
operated
pulse generator
electric power
pulse signal
operating state
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
JP1579981A
Other languages
Japanese (ja)
Inventor
Tetsuo Sakamoto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1579981A priority Critical patent/JPS57131159A/en
Publication of JPS57131159A publication Critical patent/JPS57131159A/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
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/654—Telephone line monitoring circuits therefor, e.g. ring detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To set an automatic answering telephone set to an operating state, by picking up and amplifying a bell sound of a telephone set, and converting it to a pulse signal. CONSTITUTION:A ringing tone of a telephon set 1 is detected by a pickup 2, is amplified by an amplifier, and after that, is converted to a pulse signal by a pulse generator, by which a timer device is operated. When the timer device is operated, the relay contact is closed, an electric power source 8 is supplied to an automatic answering telephone device 10, a solenoid 13 is operated, and a hook switch 14 becomes an off-state. Also, electric power is fed to a cassette tape device 11 from a plug socket 9, and the cassette tape device becomes an operating state, is coupled with a transmitter and receiver 12, sends out an absence message and records a received message.
JP1579981A 1981-02-06 1981-02-06 Pulse generator by telephone bell Pending JPS57131159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1579981A JPS57131159A (en) 1981-02-06 1981-02-06 Pulse generator by telephone bell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1579981A JPS57131159A (en) 1981-02-06 1981-02-06 Pulse generator by telephone bell

Publications (1)

Publication Number Publication Date
JPS57131159A true JPS57131159A (en) 1982-08-13

Family

ID=11898881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1579981A Pending JPS57131159A (en) 1981-02-06 1981-02-06 Pulse generator by telephone bell

Country Status (1)

Country Link
JP (1) JPS57131159A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176253A (en) * 1986-01-29 1987-08-03 Sekisui Chem Co Ltd Telephone set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176253A (en) * 1986-01-29 1987-08-03 Sekisui Chem Co Ltd Telephone set

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