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JPS55115770A - Tone signal production system - Google Patents

Tone signal production system

Info

Publication number
JPS55115770A
JPS55115770A JP2319779A JP2319779A JPS55115770A JP S55115770 A JPS55115770 A JP S55115770A JP 2319779 A JP2319779 A JP 2319779A JP 2319779 A JP2319779 A JP 2319779A JP S55115770 A JPS55115770 A JP S55115770A
Authority
JP
Japan
Prior art keywords
tone
memory
tone signal
data
exchanger
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
JP2319779A
Other languages
Japanese (ja)
Inventor
Tadashi Murayama
Hideyasu Mori
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2319779A priority Critical patent/JPS55115770A/en
Publication of JPS55115770A publication Critical patent/JPS55115770A/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 enable to produce the tone signal easily, by reading out the address information from the tone control memory selectively in response to the control operation of the exchanger, and designating the address of the tone data memory. CONSTITUTION:In producing the tone signal in time sharing exchanger, the tone source data is sampled and digitized and written in the tone data memory 21 from external unit. Further, after the control information of the data is written in the tone control memory 26, the address information is selectively read out from the memory 26 in response to the control operation of the exchanger and the address of the memory 21 is designated. Thus, the tone source data is selectively read in to easily produce the tone signal.
JP2319779A 1979-02-28 1979-02-28 Tone signal production system Pending JPS55115770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2319779A JPS55115770A (en) 1979-02-28 1979-02-28 Tone signal production system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2319779A JPS55115770A (en) 1979-02-28 1979-02-28 Tone signal production system

Publications (1)

Publication Number Publication Date
JPS55115770A true JPS55115770A (en) 1980-09-05

Family

ID=12103936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2319779A Pending JPS55115770A (en) 1979-02-28 1979-02-28 Tone signal production system

Country Status (1)

Country Link
JP (1) JPS55115770A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57112174A (en) * 1980-12-29 1982-07-13 Fujitsu Ltd System for generating digital audible tone
JPS595293A (en) * 1982-06-30 1984-01-12 富士通株式会社 Audible signal generator
JPH01149658A (en) * 1987-12-07 1989-06-12 Nec Corp Private automatic branch exchange

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57112174A (en) * 1980-12-29 1982-07-13 Fujitsu Ltd System for generating digital audible tone
JPH0123026B2 (en) * 1980-12-29 1989-04-28 Fujitsu Ltd
JPS595293A (en) * 1982-06-30 1984-01-12 富士通株式会社 Audible signal generator
JPH01149658A (en) * 1987-12-07 1989-06-12 Nec Corp Private automatic branch exchange

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