JPS56154867A - Control system for transmission of tone - Google Patents

Control system for transmission of tone

Info

Publication number
JPS56154867A
JPS56154867A JP5780180A JP5780180A JPS56154867A JP S56154867 A JPS56154867 A JP S56154867A JP 5780180 A JP5780180 A JP 5780180A JP 5780180 A JP5780180 A JP 5780180A JP S56154867 A JPS56154867 A JP S56154867A
Authority
JP
Japan
Prior art keywords
circuit
intermittent
gate
tone
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
JP5780180A
Other languages
Japanese (ja)
Inventor
Tsuguo Ishizuka
Hirokazu Yorozuya
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP5780180A priority Critical patent/JPS56154867A/en
Publication of JPS56154867A publication Critical patent/JPS56154867A/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)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To simplify the constitution of a control system by sending an intermittent tone to a terminal equipment by providing an AND circuit to the input or output side of a channel storing circuit, and by controlling its gate to open and close through an intermittent signal generating circuit and an intermittent period selecting circuit which operates according to control information. CONSTITUTION:Encoded voice information from each terminal equipment CODECT is stored temporarily in channel storing circuit SPM of channel controller SWC, and the voice information stored in this circuit SPM is distributed to respective terminal equipments CODECT via channel holding circuit HM by making a connection with subscriber EXT1. At the input side or output side of this storing circuit SPM, AND gate G is provided. Then, gate G is applied with an intermittent tone from intermittent tone trunk BTT via circuit HM and also supplied with the output of intermittent period selecting circuit TSEL which operates on the basis of control information from trunk BTT to exercise control over the switching of gate G, thereby sending the intermittent tone to subscriber EXT1 with the simple circuit constitution.
JP5780180A 1980-05-02 1980-05-02 Control system for transmission of tone Pending JPS56154867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5780180A JPS56154867A (en) 1980-05-02 1980-05-02 Control system for transmission of tone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5780180A JPS56154867A (en) 1980-05-02 1980-05-02 Control system for transmission of tone

Publications (1)

Publication Number Publication Date
JPS56154867A true JPS56154867A (en) 1981-11-30

Family

ID=13066005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5780180A Pending JPS56154867A (en) 1980-05-02 1980-05-02 Control system for transmission of tone

Country Status (1)

Country Link
JP (1) JPS56154867A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105754A (en) * 1982-12-09 1984-06-19 Matsushita Electric Ind Co Ltd Tone interval producing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105754A (en) * 1982-12-09 1984-06-19 Matsushita Electric Ind Co Ltd Tone interval producing method

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