JPS56153876A - Tone transmission system - Google Patents

Tone transmission system

Info

Publication number
JPS56153876A
JPS56153876A JP5552880A JP5552880A JPS56153876A JP S56153876 A JPS56153876 A JP S56153876A JP 5552880 A JP5552880 A JP 5552880A JP 5552880 A JP5552880 A JP 5552880A JP S56153876 A JPS56153876 A JP S56153876A
Authority
JP
Japan
Prior art keywords
tone
signal
information
time slot
signal tone
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
JP5552880A
Other languages
Japanese (ja)
Inventor
Takashi Okuno
Hiroyuki Sawada
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 JP5552880A priority Critical patent/JPS56153876A/en
Publication of JPS56153876A publication Critical patent/JPS56153876A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

PURPOSE:To form an exchange without vacancy of line capacity, by inserting voice data or the selected signal tone to a time slot assigned to a subscriber in accordance with information, in a time division type digital exchange. CONSTITUTION:When time slot Ti is assigned to subscriber SUB, tone transmission instructing information tno from signal tone generator TGO is read out by time slot Ti, and selecting circuit SEL selects tone data, and this data is written onto voice memory STM. The selected tone is read out by time slot Ti and is converted to an analogue signal by decoder DEC and is transmitted to subscriber SUB. If the signal tone is not transmitted, information not to transmit the signal tone is set as contents of signal tone transmission instructing information TB, and selecting circuit SEL is controlled by this information to select voice data from coder COD. Consequently, the signal tone is transmitted without assigning private time slots to respective signal tones.
JP5552880A 1980-04-28 1980-04-28 Tone transmission system Pending JPS56153876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5552880A JPS56153876A (en) 1980-04-28 1980-04-28 Tone transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5552880A JPS56153876A (en) 1980-04-28 1980-04-28 Tone transmission system

Publications (1)

Publication Number Publication Date
JPS56153876A true JPS56153876A (en) 1981-11-28

Family

ID=13001220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5552880A Pending JPS56153876A (en) 1980-04-28 1980-04-28 Tone transmission system

Country Status (1)

Country Link
JP (1) JPS56153876A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6085657A (en) * 1983-09-15 1985-05-15 エイ・ティ・アンド・ティ・コーポレーション Multifrequency signal supplying device and method therefor
JPS63222570A (en) * 1987-03-12 1988-09-16 Toshiba Corp Time division multiplex exchange
JPS6473897A (en) * 1987-09-14 1989-03-20 Nec Corp Digital exchange

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6085657A (en) * 1983-09-15 1985-05-15 エイ・ティ・アンド・ティ・コーポレーション Multifrequency signal supplying device and method therefor
JPH0773395B2 (en) * 1983-09-15 1995-08-02 エイ・ティ・アンド・ティ・コーポレーション Multi-frequency signal supply device
JPS63222570A (en) * 1987-03-12 1988-09-16 Toshiba Corp Time division multiplex exchange
JP2590089B2 (en) * 1987-03-12 1997-03-12 株式会社東芝 Time division multiplex switching equipment
JPS6473897A (en) * 1987-09-14 1989-03-20 Nec Corp Digital exchange

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