JPS5660158A - Audible signal tone system - Google Patents

Audible signal tone system

Info

Publication number
JPS5660158A
JPS5660158A JP13615979A JP13615979A JPS5660158A JP S5660158 A JPS5660158 A JP S5660158A JP 13615979 A JP13615979 A JP 13615979A JP 13615979 A JP13615979 A JP 13615979A JP S5660158 A JPS5660158 A JP S5660158A
Authority
JP
Japan
Prior art keywords
circuit
output
audible signal
time
constitution
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
JP13615979A
Other languages
Japanese (ja)
Inventor
Hiroshi Shimizu
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13615979A priority Critical patent/JPS5660158A/en
Publication of JPS5660158A publication Critical patent/JPS5660158A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

PURPOSE:To simplify the circuit constitution of a subscriber's terminal by sending audible signals in time series, by selecting an audible signal to be sent out according to a state to be reported, and by changing the transmission time and repetitive period of the selected signal. CONSTITUTION:In starting time T1 of repetitive period T, control circuit 5 makes selecting circuit 4 select the output of audible signal generator 1. In the next time T2, the output of audible signal generator 2 is selected and in the further following time T3, the selection of circuit 4 is inhibited to eliminated its output. Therefore, the signal shown in the figure appears at output 6 of circuit 4. Thus, the circuit constitution of the subscriber's terminal can be simplified.
JP13615979A 1979-10-22 1979-10-22 Audible signal tone system Pending JPS5660158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13615979A JPS5660158A (en) 1979-10-22 1979-10-22 Audible signal tone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13615979A JPS5660158A (en) 1979-10-22 1979-10-22 Audible signal tone system

Publications (1)

Publication Number Publication Date
JPS5660158A true JPS5660158A (en) 1981-05-23

Family

ID=15168687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13615979A Pending JPS5660158A (en) 1979-10-22 1979-10-22 Audible signal tone system

Country Status (1)

Country Link
JP (1) JPS5660158A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62122456A (en) * 1985-11-22 1987-06-03 Oki Electric Ind Co Ltd Audible signal transmission equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62122456A (en) * 1985-11-22 1987-06-03 Oki Electric Ind Co Ltd Audible signal transmission equipment

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